rossberg@chromium.org | fab1498 | 2012-01-05 15:02:15 +0000 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | #include <stdlib.h> |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 29 | #include <limits> |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 30 | |
| 31 | #include "v8.h" |
| 32 | |
| 33 | #include "accessors.h" |
mstarzinger@chromium.org | b4968be | 2013-10-16 09:00:56 +0000 | [diff] [blame] | 34 | #include "allocation-site-scopes.h" |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 35 | #include "api.h" |
| 36 | #include "arguments.h" |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 37 | #include "bootstrapper.h" |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 38 | #include "codegen.h" |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 39 | #include "compilation-cache.h" |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 40 | #include "compiler.h" |
| 41 | #include "cpu.h" |
machenbach@chromium.org | c1789ee | 2013-07-05 07:09:57 +0000 | [diff] [blame] | 42 | #include "cpu-profiler.h" |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 43 | #include "dateparser-inl.h" |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 44 | #include "debug.h" |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 45 | #include "deoptimizer.h" |
svenpanne@chromium.org | 4efbdb1 | 2012-03-12 08:18:42 +0000 | [diff] [blame] | 46 | #include "date.h" |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 47 | #include "execution.h" |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 48 | #include "full-codegen.h" |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 49 | #include "global-handles.h" |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 50 | #include "isolate-inl.h" |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 51 | #include "jsregexp.h" |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 52 | #include "jsregexp-inl.h" |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 53 | #include "json-parser.h" |
danno@chromium.org | 72204d5 | 2012-10-31 10:02:10 +0000 | [diff] [blame] | 54 | #include "json-stringifier.h" |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 55 | #include "liveedit.h" |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 56 | #include "misc-intrinsics.h" |
christian.plesner.hansen@gmail.com | 9d58c2b | 2009-10-16 11:48:38 +0000 | [diff] [blame] | 57 | #include "parser.h" |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 58 | #include "platform.h" |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 59 | #include "runtime-profiler.h" |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 60 | #include "runtime.h" |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 61 | #include "scopeinfo.h" |
yangguo@chromium.org | 304cc33 | 2012-07-24 07:59:48 +0000 | [diff] [blame] | 62 | #include "smart-pointers.h" |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 63 | #include "string-search.h" |
ager@chromium.org | 18ad94b | 2009-09-02 08:22:29 +0000 | [diff] [blame] | 64 | #include "stub-cache.h" |
ulan@chromium.org | 2e04b58 | 2013-02-21 14:06:02 +0000 | [diff] [blame] | 65 | #include "uri.h" |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 66 | #include "v8conversions.h" |
christian.plesner.hansen@gmail.com | 9d58c2b | 2009-10-16 11:48:38 +0000 | [diff] [blame] | 67 | #include "v8threads.h" |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 68 | #include "vm-state-inl.h" |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 69 | |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 70 | #ifdef V8_I18N_SUPPORT |
| 71 | #include "i18n.h" |
| 72 | #include "unicode/brkiter.h" |
| 73 | #include "unicode/calendar.h" |
| 74 | #include "unicode/coll.h" |
| 75 | #include "unicode/curramt.h" |
| 76 | #include "unicode/datefmt.h" |
| 77 | #include "unicode/dcfmtsym.h" |
| 78 | #include "unicode/decimfmt.h" |
| 79 | #include "unicode/dtfmtsym.h" |
| 80 | #include "unicode/dtptngen.h" |
| 81 | #include "unicode/locid.h" |
| 82 | #include "unicode/numfmt.h" |
| 83 | #include "unicode/numsys.h" |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 84 | #include "unicode/rbbi.h" |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 85 | #include "unicode/smpdtfmt.h" |
| 86 | #include "unicode/timezone.h" |
| 87 | #include "unicode/uchar.h" |
| 88 | #include "unicode/ucol.h" |
| 89 | #include "unicode/ucurr.h" |
| 90 | #include "unicode/uloc.h" |
| 91 | #include "unicode/unum.h" |
| 92 | #include "unicode/uversion.h" |
| 93 | #endif |
| 94 | |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 95 | #ifndef _STLP_VENDOR_CSTD |
| 96 | // STLPort doesn't import fpclassify and isless into the std namespace. |
| 97 | using std::fpclassify; |
| 98 | using std::isless; |
| 99 | #endif |
| 100 | |
kasperl@chromium.org | 71affb5 | 2009-05-26 05:44:31 +0000 | [diff] [blame] | 101 | namespace v8 { |
| 102 | namespace internal { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 103 | |
| 104 | |
ager@chromium.org | 3e87580 | 2009-06-29 08:26:34 +0000 | [diff] [blame] | 105 | #define RUNTIME_ASSERT(value) \ |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 106 | if (!(value)) return isolate->ThrowIllegalOperation(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 107 | |
| 108 | // Cast the given object to a value of the specified type and store |
| 109 | // it in a variable with the given name. If the object is not of the |
| 110 | // expected type call IllegalOperation and return. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 111 | #define CONVERT_ARG_CHECKED(Type, name, index) \ |
| 112 | RUNTIME_ASSERT(args[index]->Is##Type()); \ |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 113 | Type* name = Type::cast(args[index]); |
| 114 | |
| 115 | #define CONVERT_ARG_HANDLE_CHECKED(Type, name, index) \ |
| 116 | RUNTIME_ASSERT(args[index]->Is##Type()); \ |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 117 | Handle<Type> name = args.at<Type>(index); |
| 118 | |
kasper.lund | bd3ec4e | 2008-07-09 11:06:54 +0000 | [diff] [blame] | 119 | // Cast the given object to a boolean and store it in a variable with |
| 120 | // the given name. If the object is not a boolean call IllegalOperation |
| 121 | // and return. |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 122 | #define CONVERT_BOOLEAN_ARG_CHECKED(name, index) \ |
| 123 | RUNTIME_ASSERT(args[index]->IsBoolean()); \ |
| 124 | bool name = args[index]->IsTrue(); |
kasper.lund | bd3ec4e | 2008-07-09 11:06:54 +0000 | [diff] [blame] | 125 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 126 | // Cast the given argument to a Smi and store its value in an int variable |
| 127 | // with the given name. If the argument is not a Smi call IllegalOperation |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 128 | // and return. |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 129 | #define CONVERT_SMI_ARG_CHECKED(name, index) \ |
| 130 | RUNTIME_ASSERT(args[index]->IsSmi()); \ |
| 131 | int name = args.smi_at(index); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 132 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 133 | // Cast the given argument to a double and store it in a variable with |
| 134 | // the given name. If the argument is not a number (as opposed to |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 135 | // the number not-a-number) call IllegalOperation and return. |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 136 | #define CONVERT_DOUBLE_ARG_CHECKED(name, index) \ |
| 137 | RUNTIME_ASSERT(args[index]->IsNumber()); \ |
| 138 | double name = args.number_at(index); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 139 | |
| 140 | // Call the specified converter on the object *comand store the result in |
| 141 | // a variable of the specified type with the given name. If the |
| 142 | // object is not a Number call IllegalOperation and return. |
| 143 | #define CONVERT_NUMBER_CHECKED(type, name, Type, obj) \ |
| 144 | RUNTIME_ASSERT(obj->IsNumber()); \ |
| 145 | type name = NumberTo##Type(obj); |
| 146 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 147 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 148 | // Cast the given argument to PropertyDetails and store its value in a |
| 149 | // variable with the given name. If the argument is not a Smi call |
| 150 | // IllegalOperation and return. |
| 151 | #define CONVERT_PROPERTY_DETAILS_CHECKED(name, index) \ |
| 152 | RUNTIME_ASSERT(args[index]->IsSmi()); \ |
| 153 | PropertyDetails name = PropertyDetails(Smi::cast(args[index])); |
| 154 | |
| 155 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 156 | // Assert that the given argument has a valid value for a StrictModeFlag |
| 157 | // and store it in a StrictModeFlag variable with the given name. |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 158 | #define CONVERT_STRICT_MODE_ARG_CHECKED(name, index) \ |
| 159 | RUNTIME_ASSERT(args[index]->IsSmi()); \ |
| 160 | RUNTIME_ASSERT(args.smi_at(index) == kStrictMode || \ |
| 161 | args.smi_at(index) == kNonStrictMode); \ |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 162 | StrictModeFlag name = \ |
| 163 | static_cast<StrictModeFlag>(args.smi_at(index)); |
| 164 | |
| 165 | |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 166 | // Assert that the given argument has a valid value for a LanguageMode |
| 167 | // and store it in a LanguageMode variable with the given name. |
| 168 | #define CONVERT_LANGUAGE_MODE_ARG(name, index) \ |
| 169 | ASSERT(args[index]->IsSmi()); \ |
| 170 | ASSERT(args.smi_at(index) == CLASSIC_MODE || \ |
| 171 | args.smi_at(index) == STRICT_MODE || \ |
| 172 | args.smi_at(index) == EXTENDED_MODE); \ |
| 173 | LanguageMode name = \ |
| 174 | static_cast<LanguageMode>(args.smi_at(index)); |
| 175 | |
| 176 | |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 177 | static Handle<Map> ComputeObjectLiteralMap( |
| 178 | Handle<Context> context, |
| 179 | Handle<FixedArray> constant_properties, |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 180 | bool* is_result_from_cache) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 181 | Isolate* isolate = context->GetIsolate(); |
whesse@chromium.org | ba5a61b | 2010-07-26 11:44:40 +0000 | [diff] [blame] | 182 | int properties_length = constant_properties->length(); |
| 183 | int number_of_properties = properties_length / 2; |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 184 | // Check that there are only internal strings and array indices among keys. |
| 185 | int number_of_string_keys = 0; |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 186 | for (int p = 0; p != properties_length; p += 2) { |
| 187 | Object* key = constant_properties->get(p); |
| 188 | uint32_t element_index = 0; |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 189 | if (key->IsInternalizedString()) { |
| 190 | number_of_string_keys++; |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 191 | } else if (key->ToArrayIndex(&element_index)) { |
| 192 | // An index key does not require space in the property backing store. |
| 193 | number_of_properties--; |
| 194 | } else { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 195 | // Bail out as a non-internalized-string non-index key makes caching |
| 196 | // impossible. |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 197 | // ASSERT to make sure that the if condition after the loop is false. |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 198 | ASSERT(number_of_string_keys != number_of_properties); |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 199 | break; |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 200 | } |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 201 | } |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 202 | // If we only have internalized strings and array indices among keys then we |
| 203 | // can use the map cache in the native context. |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 204 | const int kMaxKeys = 10; |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 205 | if ((number_of_string_keys == number_of_properties) && |
| 206 | (number_of_string_keys < kMaxKeys)) { |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 207 | // Create the fixed array with the key. |
| 208 | Handle<FixedArray> keys = |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 209 | isolate->factory()->NewFixedArray(number_of_string_keys); |
| 210 | if (number_of_string_keys > 0) { |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 211 | int index = 0; |
| 212 | for (int p = 0; p < properties_length; p += 2) { |
| 213 | Object* key = constant_properties->get(p); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 214 | if (key->IsInternalizedString()) { |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 215 | keys->set(index++, key); |
whesse@chromium.org | ba5a61b | 2010-07-26 11:44:40 +0000 | [diff] [blame] | 216 | } |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 217 | } |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 218 | ASSERT(index == number_of_string_keys); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 219 | } |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 220 | *is_result_from_cache = true; |
| 221 | return isolate->factory()->ObjectLiteralMapFromCache(context, keys); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 222 | } |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 223 | *is_result_from_cache = false; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 224 | return isolate->factory()->CopyMap( |
ager@chromium.org | 3291210 | 2009-01-16 10:38:43 +0000 | [diff] [blame] | 225 | Handle<Map>(context->object_function()->initial_map()), |
| 226 | number_of_properties); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 227 | } |
| 228 | |
| 229 | |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 230 | static Handle<Object> CreateLiteralBoilerplate( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 231 | Isolate* isolate, |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 232 | Handle<FixedArray> literals, |
| 233 | Handle<FixedArray> constant_properties); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 234 | |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 235 | |
| 236 | static Handle<Object> CreateObjectLiteralBoilerplate( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 237 | Isolate* isolate, |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 238 | Handle<FixedArray> literals, |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 239 | Handle<FixedArray> constant_properties, |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 240 | bool should_have_fast_elements, |
| 241 | bool has_function_literal) { |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 242 | // Get the native context from the literals array. This is the |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 243 | // context in which the function was created and we use the object |
| 244 | // function from this context to create the object literal. We do |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 245 | // not use the object function from the current native context |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 246 | // because this might be the object function from another context |
| 247 | // which we should not have access to. |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 248 | Handle<Context> context = |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 249 | Handle<Context>(JSFunction::NativeContextFromLiterals(*literals)); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 250 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 251 | // In case we have function literals, we want the object to be in |
| 252 | // slow properties mode for now. We don't go in the map cache because |
| 253 | // maps with constant functions can't be shared if the functions are |
| 254 | // not the same (which is the common case). |
| 255 | bool is_result_from_cache = false; |
| 256 | Handle<Map> map = has_function_literal |
| 257 | ? Handle<Map>(context->object_function()->initial_map()) |
| 258 | : ComputeObjectLiteralMap(context, |
| 259 | constant_properties, |
| 260 | &is_result_from_cache); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 261 | |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 262 | Handle<JSObject> boilerplate = |
| 263 | isolate->factory()->NewJSObjectFromMap( |
| 264 | map, isolate->heap()->GetPretenureMode()); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 265 | |
| 266 | // Normalize the elements of the boilerplate to save space if needed. |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 267 | if (!should_have_fast_elements) JSObject::NormalizeElements(boilerplate); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 268 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 269 | // Add the constant properties to the boilerplate. |
| 270 | int length = constant_properties->length(); |
| 271 | bool should_transform = |
| 272 | !is_result_from_cache && boilerplate->HasFastProperties(); |
| 273 | if (should_transform || has_function_literal) { |
| 274 | // Normalize the properties of object to avoid n^2 behavior |
| 275 | // when extending the object multiple properties. Indicate the number of |
| 276 | // properties to be added. |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 277 | JSObject::NormalizeProperties( |
| 278 | boilerplate, KEEP_INOBJECT_PROPERTIES, length / 2); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 279 | } |
| 280 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 281 | // TODO(verwaest): Support tracking representations in the boilerplate. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 282 | for (int index = 0; index < length; index +=2) { |
| 283 | Handle<Object> key(constant_properties->get(index+0), isolate); |
| 284 | Handle<Object> value(constant_properties->get(index+1), isolate); |
| 285 | if (value->IsFixedArray()) { |
| 286 | // The value contains the constant_properties of a |
| 287 | // simple object or array literal. |
| 288 | Handle<FixedArray> array = Handle<FixedArray>::cast(value); |
| 289 | value = CreateLiteralBoilerplate(isolate, literals, array); |
| 290 | if (value.is_null()) return value; |
| 291 | } |
| 292 | Handle<Object> result; |
| 293 | uint32_t element_index = 0; |
rossberg@chromium.org | 9259716 | 2013-08-23 13:28:00 +0000 | [diff] [blame] | 294 | StoreMode mode = value->IsJSObject() ? FORCE_FIELD : ALLOW_AS_CONSTANT; |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 295 | if (key->IsInternalizedString()) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 296 | if (Handle<String>::cast(key)->AsArrayIndex(&element_index)) { |
| 297 | // Array index as string (uint32). |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 298 | result = JSObject::SetOwnElement( |
| 299 | boilerplate, element_index, value, kNonStrictMode); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 300 | } else { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 301 | Handle<String> name(String::cast(*key)); |
| 302 | ASSERT(!name->AsArrayIndex(&element_index)); |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 303 | result = JSObject::SetLocalPropertyIgnoreAttributes( |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 304 | boilerplate, name, value, NONE, |
| 305 | Object::OPTIMAL_REPRESENTATION, mode); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 306 | } |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 307 | } else if (key->ToArrayIndex(&element_index)) { |
| 308 | // Array index (uint32). |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 309 | result = JSObject::SetOwnElement( |
| 310 | boilerplate, element_index, value, kNonStrictMode); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 311 | } else { |
| 312 | // Non-uint32 number. |
| 313 | ASSERT(key->IsNumber()); |
| 314 | double num = key->Number(); |
| 315 | char arr[100]; |
| 316 | Vector<char> buffer(arr, ARRAY_SIZE(arr)); |
| 317 | const char* str = DoubleToCString(num, buffer); |
| 318 | Handle<String> name = |
| 319 | isolate->factory()->NewStringFromAscii(CStrVector(str)); |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 320 | result = JSObject::SetLocalPropertyIgnoreAttributes( |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 321 | boilerplate, name, value, NONE, |
| 322 | Object::OPTIMAL_REPRESENTATION, mode); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 323 | } |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 324 | // If setting the property on the boilerplate throws an |
| 325 | // exception, the exception is converted to an empty handle in |
| 326 | // the handle based operations. In that case, we need to |
| 327 | // convert back to an exception. |
| 328 | if (result.is_null()) return result; |
| 329 | } |
| 330 | |
| 331 | // Transform to fast properties if necessary. For object literals with |
| 332 | // containing function literals we defer this operation until after all |
| 333 | // computed properties have been assigned so that we can generate |
| 334 | // constant function properties. |
| 335 | if (should_transform && !has_function_literal) { |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 336 | JSObject::TransformToFastProperties( |
| 337 | boilerplate, boilerplate->map()->unused_property_fields()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 338 | } |
| 339 | |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 340 | return boilerplate; |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 341 | } |
| 342 | |
| 343 | |
danno@chromium.org | fa458e4 | 2012-02-01 10:48:36 +0000 | [diff] [blame] | 344 | MaybeObject* TransitionElements(Handle<Object> object, |
| 345 | ElementsKind to_kind, |
| 346 | Isolate* isolate) { |
| 347 | HandleScope scope(isolate); |
| 348 | if (!object->IsJSObject()) return isolate->ThrowIllegalOperation(); |
| 349 | ElementsKind from_kind = |
| 350 | Handle<JSObject>::cast(object)->map()->elements_kind(); |
| 351 | if (Map::IsValidElementsTransition(from_kind, to_kind)) { |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 352 | JSObject::TransitionElementsKind(Handle<JSObject>::cast(object), to_kind); |
| 353 | return *object; |
danno@chromium.org | fa458e4 | 2012-02-01 10:48:36 +0000 | [diff] [blame] | 354 | } |
| 355 | return isolate->ThrowIllegalOperation(); |
| 356 | } |
| 357 | |
| 358 | |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 359 | static const int kSmiLiteralMinimumLength = 1024; |
svenpanne@chromium.org | a8bb4d9 | 2011-10-10 13:20:40 +0000 | [diff] [blame] | 360 | |
| 361 | |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 362 | Handle<Object> Runtime::CreateArrayLiteralBoilerplate( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 363 | Isolate* isolate, |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 364 | Handle<FixedArray> literals, |
| 365 | Handle<FixedArray> elements) { |
| 366 | // Create the JSArray. |
| 367 | Handle<JSFunction> constructor( |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 368 | JSFunction::NativeContextFromLiterals(*literals)->array_function()); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 369 | |
| 370 | Handle<JSArray> object = Handle<JSArray>::cast( |
| 371 | isolate->factory()->NewJSObject( |
| 372 | constructor, isolate->heap()->GetPretenureMode())); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 373 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 374 | ElementsKind constant_elements_kind = |
| 375 | static_cast<ElementsKind>(Smi::cast(elements->get(0))->value()); |
| 376 | Handle<FixedArrayBase> constant_elements_values( |
| 377 | FixedArrayBase::cast(elements->get(1))); |
| 378 | |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 379 | ASSERT(IsFastElementsKind(constant_elements_kind)); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 380 | Context* native_context = isolate->context()->native_context(); |
| 381 | Object* maybe_maps_array = native_context->js_array_maps(); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 382 | ASSERT(!maybe_maps_array->IsUndefined()); |
| 383 | Object* maybe_map = FixedArray::cast(maybe_maps_array)->get( |
| 384 | constant_elements_kind); |
| 385 | ASSERT(maybe_map->IsMap()); |
| 386 | object->set_map(Map::cast(maybe_map)); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 387 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 388 | Handle<FixedArrayBase> copied_elements_values; |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 389 | if (IsFastDoubleElementsKind(constant_elements_kind)) { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 390 | ASSERT(FLAG_smi_only_arrays); |
| 391 | copied_elements_values = isolate->factory()->CopyFixedDoubleArray( |
| 392 | Handle<FixedDoubleArray>::cast(constant_elements_values)); |
ricow@chromium.org | 0b9f850 | 2010-08-18 07:45:01 +0000 | [diff] [blame] | 393 | } else { |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 394 | ASSERT(IsFastSmiOrObjectElementsKind(constant_elements_kind)); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 395 | const bool is_cow = |
| 396 | (constant_elements_values->map() == |
| 397 | isolate->heap()->fixed_cow_array_map()); |
| 398 | if (is_cow) { |
| 399 | copied_elements_values = constant_elements_values; |
| 400 | #if DEBUG |
| 401 | Handle<FixedArray> fixed_array_values = |
| 402 | Handle<FixedArray>::cast(copied_elements_values); |
| 403 | for (int i = 0; i < fixed_array_values->length(); i++) { |
| 404 | ASSERT(!fixed_array_values->get(i)->IsFixedArray()); |
| 405 | } |
| 406 | #endif |
| 407 | } else { |
| 408 | Handle<FixedArray> fixed_array_values = |
| 409 | Handle<FixedArray>::cast(constant_elements_values); |
| 410 | Handle<FixedArray> fixed_array_values_copy = |
| 411 | isolate->factory()->CopyFixedArray(fixed_array_values); |
| 412 | copied_elements_values = fixed_array_values_copy; |
| 413 | for (int i = 0; i < fixed_array_values->length(); i++) { |
| 414 | Object* current = fixed_array_values->get(i); |
| 415 | if (current->IsFixedArray()) { |
| 416 | // The value contains the constant_properties of a |
| 417 | // simple object or array literal. |
| 418 | Handle<FixedArray> fa(FixedArray::cast(fixed_array_values->get(i))); |
| 419 | Handle<Object> result = |
| 420 | CreateLiteralBoilerplate(isolate, literals, fa); |
| 421 | if (result.is_null()) return result; |
| 422 | fixed_array_values_copy->set(i, *result); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 423 | } |
ricow@chromium.org | 0b9f850 | 2010-08-18 07:45:01 +0000 | [diff] [blame] | 424 | } |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 425 | } |
| 426 | } |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 427 | object->set_elements(*copied_elements_values); |
| 428 | object->set_length(Smi::FromInt(copied_elements_values->length())); |
danno@chromium.org | fa458e4 | 2012-02-01 10:48:36 +0000 | [diff] [blame] | 429 | |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 430 | // Ensure that the boilerplate object has FAST_*_ELEMENTS, unless the flag is |
danno@chromium.org | fa458e4 | 2012-02-01 10:48:36 +0000 | [diff] [blame] | 431 | // on or the object is larger than the threshold. |
| 432 | if (!FLAG_smi_only_arrays && |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 433 | constant_elements_values->length() < kSmiLiteralMinimumLength) { |
| 434 | ElementsKind elements_kind = object->GetElementsKind(); |
| 435 | if (!IsFastObjectElementsKind(elements_kind)) { |
| 436 | if (IsFastHoleyElementsKind(elements_kind)) { |
| 437 | CHECK(!TransitionElements(object, FAST_HOLEY_ELEMENTS, |
| 438 | isolate)->IsFailure()); |
| 439 | } else { |
| 440 | CHECK(!TransitionElements(object, FAST_ELEMENTS, isolate)->IsFailure()); |
| 441 | } |
danno@chromium.org | fa458e4 | 2012-02-01 10:48:36 +0000 | [diff] [blame] | 442 | } |
| 443 | } |
| 444 | |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 445 | object->ValidateElements(); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 446 | return object; |
| 447 | } |
| 448 | |
| 449 | |
| 450 | static Handle<Object> CreateLiteralBoilerplate( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 451 | Isolate* isolate, |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 452 | Handle<FixedArray> literals, |
| 453 | Handle<FixedArray> array) { |
| 454 | Handle<FixedArray> elements = CompileTimeValue::GetElements(array); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 455 | const bool kHasNoFunctionLiteral = false; |
ulan@chromium.org | dfe5307 | 2013-06-06 14:14:51 +0000 | [diff] [blame] | 456 | switch (CompileTimeValue::GetLiteralType(array)) { |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 457 | case CompileTimeValue::OBJECT_LITERAL_FAST_ELEMENTS: |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 458 | return CreateObjectLiteralBoilerplate(isolate, |
| 459 | literals, |
| 460 | elements, |
| 461 | true, |
| 462 | kHasNoFunctionLiteral); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 463 | case CompileTimeValue::OBJECT_LITERAL_SLOW_ELEMENTS: |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 464 | return CreateObjectLiteralBoilerplate(isolate, |
| 465 | literals, |
| 466 | elements, |
| 467 | false, |
| 468 | kHasNoFunctionLiteral); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 469 | case CompileTimeValue::ARRAY_LITERAL: |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 470 | return Runtime::CreateArrayLiteralBoilerplate( |
| 471 | isolate, literals, elements); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 472 | default: |
| 473 | UNREACHABLE(); |
| 474 | return Handle<Object>::null(); |
| 475 | } |
| 476 | } |
| 477 | |
| 478 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 479 | RUNTIME_FUNCTION(MaybeObject*, Runtime_CreateObjectLiteral) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 480 | HandleScope scope(isolate); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 481 | ASSERT(args.length() == 4); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 482 | CONVERT_ARG_HANDLE_CHECKED(FixedArray, literals, 0); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 483 | CONVERT_SMI_ARG_CHECKED(literals_index, 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 484 | CONVERT_ARG_HANDLE_CHECKED(FixedArray, constant_properties, 2); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 485 | CONVERT_SMI_ARG_CHECKED(flags, 3); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 486 | bool should_have_fast_elements = (flags & ObjectLiteral::kFastElements) != 0; |
| 487 | bool has_function_literal = (flags & ObjectLiteral::kHasFunction) != 0; |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 488 | |
| 489 | // Check if boilerplate exists. If not, create it first. |
mvstanton@chromium.org | dd6d9ee | 2013-10-11 10:35:37 +0000 | [diff] [blame] | 490 | Handle<Object> literal_site(literals->get(literals_index), isolate); |
| 491 | Handle<AllocationSite> site; |
mstarzinger@chromium.org | b4968be | 2013-10-16 09:00:56 +0000 | [diff] [blame] | 492 | Handle<JSObject> boilerplate; |
mvstanton@chromium.org | dd6d9ee | 2013-10-11 10:35:37 +0000 | [diff] [blame] | 493 | if (*literal_site == isolate->heap()->undefined_value()) { |
mstarzinger@chromium.org | b4968be | 2013-10-16 09:00:56 +0000 | [diff] [blame] | 494 | Handle<Object> raw_boilerplate = CreateObjectLiteralBoilerplate( |
| 495 | isolate, |
| 496 | literals, |
| 497 | constant_properties, |
| 498 | should_have_fast_elements, |
| 499 | has_function_literal); |
| 500 | RETURN_IF_EMPTY_HANDLE(isolate, raw_boilerplate); |
| 501 | boilerplate = Handle<JSObject>::cast(raw_boilerplate); |
| 502 | |
| 503 | AllocationSiteCreationContext creation_context(isolate); |
| 504 | site = creation_context.EnterNewScope(); |
| 505 | RETURN_IF_EMPTY_HANDLE(isolate, |
| 506 | JSObject::DeepWalk(boilerplate, &creation_context)); |
| 507 | creation_context.ExitScope(site, boilerplate); |
mvstanton@chromium.org | dd6d9ee | 2013-10-11 10:35:37 +0000 | [diff] [blame] | 508 | |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 509 | // Update the functions literal and return the boilerplate. |
mvstanton@chromium.org | dd6d9ee | 2013-10-11 10:35:37 +0000 | [diff] [blame] | 510 | literals->set(literals_index, *site); |
| 511 | } else { |
| 512 | site = Handle<AllocationSite>::cast(literal_site); |
mstarzinger@chromium.org | b4968be | 2013-10-16 09:00:56 +0000 | [diff] [blame] | 513 | boilerplate = Handle<JSObject>(JSObject::cast(site->transition_info()), |
| 514 | isolate); |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 515 | } |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 516 | |
mstarzinger@chromium.org | b4968be | 2013-10-16 09:00:56 +0000 | [diff] [blame] | 517 | AllocationSiteUsageContext usage_context(isolate, site, true); |
| 518 | usage_context.EnterNewScope(); |
| 519 | Handle<Object> copy = JSObject::DeepCopy(boilerplate, &usage_context); |
| 520 | usage_context.ExitScope(site, boilerplate); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 521 | RETURN_IF_EMPTY_HANDLE(isolate, copy); |
| 522 | return *copy; |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 523 | } |
| 524 | |
| 525 | |
danno@chromium.org | bee5199 | 2013-07-10 14:57:15 +0000 | [diff] [blame] | 526 | static Handle<AllocationSite> GetLiteralAllocationSite( |
| 527 | Isolate* isolate, |
| 528 | Handle<FixedArray> literals, |
| 529 | int literals_index, |
| 530 | Handle<FixedArray> elements) { |
| 531 | // Check if boilerplate exists. If not, create it first. |
| 532 | Handle<Object> literal_site(literals->get(literals_index), isolate); |
| 533 | Handle<AllocationSite> site; |
| 534 | if (*literal_site == isolate->heap()->undefined_value()) { |
| 535 | ASSERT(*elements != isolate->heap()->empty_fixed_array()); |
| 536 | Handle<Object> boilerplate = |
| 537 | Runtime::CreateArrayLiteralBoilerplate(isolate, literals, elements); |
mstarzinger@chromium.org | b4968be | 2013-10-16 09:00:56 +0000 | [diff] [blame] | 538 | if (boilerplate.is_null()) return Handle<AllocationSite>::null(); |
| 539 | |
| 540 | AllocationSiteCreationContext creation_context(isolate); |
| 541 | site = creation_context.EnterNewScope(); |
| 542 | if (JSObject::DeepWalk(Handle<JSObject>::cast(boilerplate), |
| 543 | &creation_context).is_null()) { |
| 544 | return Handle<AllocationSite>::null(); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 545 | } |
mstarzinger@chromium.org | b4968be | 2013-10-16 09:00:56 +0000 | [diff] [blame] | 546 | creation_context.ExitScope(site, Handle<JSObject>::cast(boilerplate)); |
| 547 | |
danno@chromium.org | bee5199 | 2013-07-10 14:57:15 +0000 | [diff] [blame] | 548 | literals->set(literals_index, *site); |
| 549 | } else { |
| 550 | site = Handle<AllocationSite>::cast(literal_site); |
| 551 | } |
| 552 | |
| 553 | return site; |
| 554 | } |
| 555 | |
| 556 | |
machenbach@chromium.org | 37be408 | 2013-11-26 13:50:38 +0000 | [diff] [blame] | 557 | static MaybeObject* CreateArrayLiteralImpl(Isolate* isolate, |
| 558 | Handle<FixedArray> literals, |
| 559 | int literals_index, |
| 560 | Handle<FixedArray> elements, |
| 561 | int flags) { |
| 562 | Handle<AllocationSite> site = GetLiteralAllocationSite(isolate, literals, |
| 563 | literals_index, elements); |
| 564 | RETURN_IF_EMPTY_HANDLE(isolate, site); |
| 565 | |
| 566 | bool enable_mementos = (flags & ArrayLiteral::kDisableMementos) == 0; |
| 567 | Handle<JSObject> boilerplate(JSObject::cast(site->transition_info())); |
| 568 | AllocationSiteUsageContext usage_context(isolate, site, enable_mementos); |
| 569 | usage_context.EnterNewScope(); |
| 570 | JSObject::DeepCopyHints hints = (flags & ArrayLiteral::kShallowElements) == 0 |
| 571 | ? JSObject::kNoHints |
| 572 | : JSObject::kObjectIsShallowArray; |
| 573 | Handle<JSObject> copy = JSObject::DeepCopy(boilerplate, &usage_context, |
| 574 | hints); |
| 575 | usage_context.ExitScope(site, boilerplate); |
| 576 | RETURN_IF_EMPTY_HANDLE(isolate, copy); |
| 577 | return *copy; |
| 578 | } |
| 579 | |
| 580 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 581 | RUNTIME_FUNCTION(MaybeObject*, Runtime_CreateArrayLiteral) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 582 | HandleScope scope(isolate); |
machenbach@chromium.org | 37be408 | 2013-11-26 13:50:38 +0000 | [diff] [blame] | 583 | ASSERT(args.length() == 4); |
| 584 | CONVERT_ARG_HANDLE_CHECKED(FixedArray, literals, 0); |
| 585 | CONVERT_SMI_ARG_CHECKED(literals_index, 1); |
| 586 | CONVERT_ARG_HANDLE_CHECKED(FixedArray, elements, 2); |
| 587 | CONVERT_SMI_ARG_CHECKED(flags, 3); |
| 588 | |
| 589 | return CreateArrayLiteralImpl(isolate, literals, literals_index, elements, |
| 590 | flags); |
| 591 | } |
| 592 | |
| 593 | |
| 594 | RUNTIME_FUNCTION(MaybeObject*, Runtime_CreateArrayLiteralStubBailout) { |
| 595 | HandleScope scope(isolate); |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 596 | ASSERT(args.length() == 3); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 597 | CONVERT_ARG_HANDLE_CHECKED(FixedArray, literals, 0); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 598 | CONVERT_SMI_ARG_CHECKED(literals_index, 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 599 | CONVERT_ARG_HANDLE_CHECKED(FixedArray, elements, 2); |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 600 | |
machenbach@chromium.org | 37be408 | 2013-11-26 13:50:38 +0000 | [diff] [blame] | 601 | return CreateArrayLiteralImpl(isolate, literals, literals_index, elements, |
| 602 | ArrayLiteral::kShallowElements); |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 603 | } |
| 604 | |
| 605 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 606 | RUNTIME_FUNCTION(MaybeObject*, Runtime_CreateSymbol) { |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 607 | HandleScope scope(isolate); |
| 608 | ASSERT(args.length() == 1); |
| 609 | Handle<Object> name(args[0], isolate); |
| 610 | RUNTIME_ASSERT(name->IsString() || name->IsUndefined()); |
| 611 | Symbol* symbol; |
| 612 | MaybeObject* maybe = isolate->heap()->AllocateSymbol(); |
| 613 | if (!maybe->To(&symbol)) return maybe; |
| 614 | if (name->IsString()) symbol->set_name(*name); |
| 615 | return symbol; |
| 616 | } |
| 617 | |
| 618 | |
machenbach@chromium.org | 0cc0950 | 2013-11-13 12:20:55 +0000 | [diff] [blame] | 619 | RUNTIME_FUNCTION(MaybeObject*, Runtime_CreatePrivateSymbol) { |
| 620 | HandleScope scope(isolate); |
| 621 | ASSERT(args.length() == 1); |
| 622 | Handle<Object> name(args[0], isolate); |
| 623 | RUNTIME_ASSERT(name->IsString() || name->IsUndefined()); |
| 624 | Symbol* symbol; |
| 625 | MaybeObject* maybe = isolate->heap()->AllocatePrivateSymbol(); |
| 626 | if (!maybe->To(&symbol)) return maybe; |
| 627 | if (name->IsString()) symbol->set_name(*name); |
| 628 | return symbol; |
| 629 | } |
| 630 | |
| 631 | |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 632 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SymbolName) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 633 | SealHandleScope shs(isolate); |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 634 | ASSERT(args.length() == 1); |
| 635 | CONVERT_ARG_CHECKED(Symbol, symbol, 0); |
| 636 | return symbol->name(); |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 637 | } |
| 638 | |
| 639 | |
machenbach@chromium.org | 0cc0950 | 2013-11-13 12:20:55 +0000 | [diff] [blame] | 640 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SymbolIsPrivate) { |
| 641 | SealHandleScope shs(isolate); |
| 642 | ASSERT(args.length() == 1); |
| 643 | CONVERT_ARG_CHECKED(Symbol, symbol, 0); |
| 644 | return isolate->heap()->ToBoolean(symbol->is_private()); |
| 645 | } |
| 646 | |
| 647 | |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 648 | RUNTIME_FUNCTION(MaybeObject*, Runtime_CreateJSProxy) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 649 | SealHandleScope shs(isolate); |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 650 | ASSERT(args.length() == 2); |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 651 | CONVERT_ARG_CHECKED(JSReceiver, handler, 0); |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 652 | Object* prototype = args[1]; |
| 653 | Object* used_prototype = |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 654 | prototype->IsJSReceiver() ? prototype : isolate->heap()->null_value(); |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 655 | return isolate->heap()->AllocateJSProxy(handler, used_prototype); |
| 656 | } |
| 657 | |
| 658 | |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 659 | RUNTIME_FUNCTION(MaybeObject*, Runtime_CreateJSFunctionProxy) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 660 | SealHandleScope shs(isolate); |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 661 | ASSERT(args.length() == 4); |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 662 | CONVERT_ARG_CHECKED(JSReceiver, handler, 0); |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 663 | Object* call_trap = args[1]; |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 664 | RUNTIME_ASSERT(call_trap->IsJSFunction() || call_trap->IsJSFunctionProxy()); |
| 665 | CONVERT_ARG_CHECKED(JSFunction, construct_trap, 2); |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 666 | Object* prototype = args[3]; |
| 667 | Object* used_prototype = |
| 668 | prototype->IsJSReceiver() ? prototype : isolate->heap()->null_value(); |
| 669 | return isolate->heap()->AllocateJSFunctionProxy( |
| 670 | handler, call_trap, construct_trap, used_prototype); |
| 671 | } |
| 672 | |
| 673 | |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 674 | RUNTIME_FUNCTION(MaybeObject*, Runtime_IsJSProxy) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 675 | SealHandleScope shs(isolate); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 676 | ASSERT(args.length() == 1); |
| 677 | Object* obj = args[0]; |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 678 | return isolate->heap()->ToBoolean(obj->IsJSProxy()); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 679 | } |
| 680 | |
| 681 | |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 682 | RUNTIME_FUNCTION(MaybeObject*, Runtime_IsJSFunctionProxy) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 683 | SealHandleScope shs(isolate); |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 684 | ASSERT(args.length() == 1); |
| 685 | Object* obj = args[0]; |
| 686 | return isolate->heap()->ToBoolean(obj->IsJSFunctionProxy()); |
| 687 | } |
| 688 | |
| 689 | |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 690 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetHandler) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 691 | SealHandleScope shs(isolate); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 692 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 693 | CONVERT_ARG_CHECKED(JSProxy, proxy, 0); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 694 | return proxy->handler(); |
| 695 | } |
| 696 | |
| 697 | |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 698 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetCallTrap) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 699 | SealHandleScope shs(isolate); |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 700 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 701 | CONVERT_ARG_CHECKED(JSFunctionProxy, proxy, 0); |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 702 | return proxy->call_trap(); |
| 703 | } |
| 704 | |
| 705 | |
| 706 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetConstructTrap) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 707 | SealHandleScope shs(isolate); |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 708 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 709 | CONVERT_ARG_CHECKED(JSFunctionProxy, proxy, 0); |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 710 | return proxy->construct_trap(); |
| 711 | } |
| 712 | |
| 713 | |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 714 | RUNTIME_FUNCTION(MaybeObject*, Runtime_Fix) { |
jkummerow@chromium.org | 8fa5bd9 | 2013-09-02 11:45:09 +0000 | [diff] [blame] | 715 | HandleScope scope(isolate); |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 716 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | 8fa5bd9 | 2013-09-02 11:45:09 +0000 | [diff] [blame] | 717 | CONVERT_ARG_HANDLE_CHECKED(JSProxy, proxy, 0); |
| 718 | JSProxy::Fix(proxy); |
ricow@chromium.org | 9fa0967 | 2011-07-25 11:05:35 +0000 | [diff] [blame] | 719 | return isolate->heap()->undefined_value(); |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 720 | } |
| 721 | |
| 722 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 723 | void Runtime::FreeArrayBuffer(Isolate* isolate, |
| 724 | JSArrayBuffer* phantom_array_buffer) { |
machenbach@chromium.org | f984189 | 2013-11-25 12:01:13 +0000 | [diff] [blame] | 725 | if (phantom_array_buffer->should_be_freed()) { |
| 726 | ASSERT(phantom_array_buffer->is_external()); |
| 727 | free(phantom_array_buffer->backing_store()); |
| 728 | } |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 729 | if (phantom_array_buffer->is_external()) return; |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 730 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 731 | size_t allocated_length = NumberToSize( |
| 732 | isolate, phantom_array_buffer->byte_length()); |
| 733 | |
| 734 | isolate->heap()->AdjustAmountOfExternalAllocatedMemory( |
machenbach@chromium.org | 7ff7607 | 2013-11-21 09:47:43 +0000 | [diff] [blame] | 735 | -static_cast<int64_t>(allocated_length)); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 736 | CHECK(V8::ArrayBufferAllocator() != NULL); |
danno@chromium.org | 307dd6e | 2013-08-06 07:31:48 +0000 | [diff] [blame] | 737 | V8::ArrayBufferAllocator()->Free( |
| 738 | phantom_array_buffer->backing_store(), |
| 739 | allocated_length); |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 740 | } |
| 741 | |
| 742 | |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 743 | void Runtime::SetupArrayBuffer(Isolate* isolate, |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 744 | Handle<JSArrayBuffer> array_buffer, |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 745 | bool is_external, |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 746 | void* data, |
| 747 | size_t allocated_length) { |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 748 | ASSERT(array_buffer->GetInternalFieldCount() == |
| 749 | v8::ArrayBuffer::kInternalFieldCount); |
| 750 | for (int i = 0; i < v8::ArrayBuffer::kInternalFieldCount; i++) { |
| 751 | array_buffer->SetInternalField(i, Smi::FromInt(0)); |
| 752 | } |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 753 | array_buffer->set_backing_store(data); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 754 | array_buffer->set_flag(Smi::FromInt(0)); |
| 755 | array_buffer->set_is_external(is_external); |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 756 | |
| 757 | Handle<Object> byte_length = |
jkummerow@chromium.org | 4e308cf | 2013-05-17 13:39:16 +0000 | [diff] [blame] | 758 | isolate->factory()->NewNumberFromSize(allocated_length); |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 759 | CHECK(byte_length->IsSmi() || byte_length->IsHeapNumber()); |
| 760 | array_buffer->set_byte_length(*byte_length); |
danno@chromium.org | 1fd77d5 | 2013-06-07 16:01:45 +0000 | [diff] [blame] | 761 | |
| 762 | array_buffer->set_weak_next(isolate->heap()->array_buffers_list()); |
| 763 | isolate->heap()->set_array_buffers_list(*array_buffer); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 764 | array_buffer->set_weak_first_view(isolate->heap()->undefined_value()); |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 765 | } |
| 766 | |
| 767 | |
| 768 | bool Runtime::SetupArrayBufferAllocatingData( |
| 769 | Isolate* isolate, |
| 770 | Handle<JSArrayBuffer> array_buffer, |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 771 | size_t allocated_length, |
| 772 | bool initialize) { |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 773 | void* data; |
ulan@chromium.org | 837a67e | 2013-06-11 15:39:48 +0000 | [diff] [blame] | 774 | CHECK(V8::ArrayBufferAllocator() != NULL); |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 775 | if (allocated_length != 0) { |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 776 | if (initialize) { |
| 777 | data = V8::ArrayBufferAllocator()->Allocate(allocated_length); |
| 778 | } else { |
| 779 | data = |
| 780 | V8::ArrayBufferAllocator()->AllocateUninitialized(allocated_length); |
| 781 | } |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 782 | if (data == NULL) return false; |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 783 | } else { |
| 784 | data = NULL; |
| 785 | } |
| 786 | |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 787 | SetupArrayBuffer(isolate, array_buffer, false, data, allocated_length); |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 788 | |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 789 | isolate->heap()->AdjustAmountOfExternalAllocatedMemory(allocated_length); |
| 790 | |
| 791 | return true; |
| 792 | } |
| 793 | |
| 794 | |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 795 | RUNTIME_FUNCTION(MaybeObject*, Runtime_ArrayBufferInitialize) { |
| 796 | HandleScope scope(isolate); |
| 797 | ASSERT(args.length() == 2); |
| 798 | CONVERT_ARG_HANDLE_CHECKED(JSArrayBuffer, holder, 0); |
| 799 | CONVERT_ARG_HANDLE_CHECKED(Object, byteLength, 1); |
| 800 | size_t allocated_length; |
| 801 | if (byteLength->IsSmi()) { |
| 802 | allocated_length = Smi::cast(*byteLength)->value(); |
| 803 | } else { |
| 804 | ASSERT(byteLength->IsHeapNumber()); |
| 805 | double value = HeapNumber::cast(*byteLength)->value(); |
| 806 | |
| 807 | ASSERT(value >= 0); |
| 808 | |
| 809 | if (value > std::numeric_limits<size_t>::max()) { |
| 810 | return isolate->Throw( |
| 811 | *isolate->factory()->NewRangeError("invalid_array_buffer_length", |
| 812 | HandleVector<Object>(NULL, 0))); |
| 813 | } |
| 814 | |
| 815 | allocated_length = static_cast<size_t>(value); |
| 816 | } |
| 817 | |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 818 | if (!Runtime::SetupArrayBufferAllocatingData(isolate, |
| 819 | holder, allocated_length)) { |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 820 | return isolate->Throw(*isolate->factory()-> |
| 821 | NewRangeError("invalid_array_buffer_length", |
| 822 | HandleVector<Object>(NULL, 0))); |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 823 | } |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 824 | |
| 825 | return *holder; |
| 826 | } |
| 827 | |
| 828 | |
| 829 | RUNTIME_FUNCTION(MaybeObject*, Runtime_ArrayBufferGetByteLength) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 830 | SealHandleScope shs(isolate); |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 831 | ASSERT(args.length() == 1); |
| 832 | CONVERT_ARG_CHECKED(JSArrayBuffer, holder, 0); |
| 833 | return holder->byte_length(); |
| 834 | } |
| 835 | |
| 836 | |
| 837 | RUNTIME_FUNCTION(MaybeObject*, Runtime_ArrayBufferSliceImpl) { |
| 838 | HandleScope scope(isolate); |
| 839 | ASSERT(args.length() == 3); |
| 840 | CONVERT_ARG_HANDLE_CHECKED(JSArrayBuffer, source, 0); |
| 841 | CONVERT_ARG_HANDLE_CHECKED(JSArrayBuffer, target, 1); |
| 842 | CONVERT_DOUBLE_ARG_CHECKED(first, 2); |
| 843 | size_t start = static_cast<size_t>(first); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 844 | size_t target_length = NumberToSize(isolate, target->byte_length()); |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 845 | |
mstarzinger@chromium.org | b228be0 | 2013-04-18 14:56:59 +0000 | [diff] [blame] | 846 | if (target_length == 0) return isolate->heap()->undefined_value(); |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 847 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 848 | ASSERT(NumberToSize(isolate, source->byte_length()) - target_length >= start); |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 849 | uint8_t* source_data = reinterpret_cast<uint8_t*>(source->backing_store()); |
| 850 | uint8_t* target_data = reinterpret_cast<uint8_t*>(target->backing_store()); |
| 851 | CopyBytes(target_data, source_data + start, target_length); |
| 852 | return isolate->heap()->undefined_value(); |
| 853 | } |
| 854 | |
| 855 | |
mvstanton@chromium.org | 63ea3d2 | 2013-10-10 09:24:12 +0000 | [diff] [blame] | 856 | RUNTIME_FUNCTION(MaybeObject*, Runtime_ArrayBufferIsView) { |
| 857 | HandleScope scope(isolate); |
| 858 | ASSERT(args.length() == 1); |
| 859 | CONVERT_ARG_CHECKED(Object, object, 0); |
| 860 | return object->IsJSArrayBufferView() |
| 861 | ? isolate->heap()->true_value() |
| 862 | : isolate->heap()->false_value(); |
| 863 | } |
| 864 | |
| 865 | |
machenbach@chromium.org | 37be408 | 2013-11-26 13:50:38 +0000 | [diff] [blame] | 866 | void Runtime::ArrayIdToTypeAndSize( |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 867 | int arrayId, ExternalArrayType* array_type, size_t* element_size) { |
| 868 | switch (arrayId) { |
| 869 | case ARRAY_ID_UINT8: |
| 870 | *array_type = kExternalUnsignedByteArray; |
| 871 | *element_size = 1; |
| 872 | break; |
| 873 | case ARRAY_ID_INT8: |
| 874 | *array_type = kExternalByteArray; |
| 875 | *element_size = 1; |
| 876 | break; |
| 877 | case ARRAY_ID_UINT16: |
| 878 | *array_type = kExternalUnsignedShortArray; |
| 879 | *element_size = 2; |
| 880 | break; |
| 881 | case ARRAY_ID_INT16: |
| 882 | *array_type = kExternalShortArray; |
| 883 | *element_size = 2; |
| 884 | break; |
| 885 | case ARRAY_ID_UINT32: |
| 886 | *array_type = kExternalUnsignedIntArray; |
| 887 | *element_size = 4; |
| 888 | break; |
| 889 | case ARRAY_ID_INT32: |
| 890 | *array_type = kExternalIntArray; |
| 891 | *element_size = 4; |
| 892 | break; |
| 893 | case ARRAY_ID_FLOAT32: |
| 894 | *array_type = kExternalFloatArray; |
| 895 | *element_size = 4; |
| 896 | break; |
| 897 | case ARRAY_ID_FLOAT64: |
| 898 | *array_type = kExternalDoubleArray; |
| 899 | *element_size = 8; |
| 900 | break; |
| 901 | case ARRAY_ID_UINT8C: |
| 902 | *array_type = kExternalPixelArray; |
| 903 | *element_size = 1; |
| 904 | break; |
| 905 | default: |
| 906 | UNREACHABLE(); |
| 907 | } |
| 908 | } |
| 909 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 910 | |
| 911 | RUNTIME_FUNCTION(MaybeObject*, Runtime_TypedArrayInitialize) { |
| 912 | HandleScope scope(isolate); |
| 913 | ASSERT(args.length() == 5); |
| 914 | CONVERT_ARG_HANDLE_CHECKED(JSTypedArray, holder, 0); |
| 915 | CONVERT_SMI_ARG_CHECKED(arrayId, 1); |
| 916 | CONVERT_ARG_HANDLE_CHECKED(JSArrayBuffer, buffer, 2); |
| 917 | CONVERT_ARG_HANDLE_CHECKED(Object, byte_offset_object, 3); |
| 918 | CONVERT_ARG_HANDLE_CHECKED(Object, byte_length_object, 4); |
| 919 | |
mstarzinger@chromium.org | e0e1b0d | 2013-07-08 08:38:06 +0000 | [diff] [blame] | 920 | ASSERT(holder->GetInternalFieldCount() == |
| 921 | v8::ArrayBufferView::kInternalFieldCount); |
| 922 | for (int i = 0; i < v8::ArrayBufferView::kInternalFieldCount; i++) { |
| 923 | holder->SetInternalField(i, Smi::FromInt(0)); |
| 924 | } |
| 925 | |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 926 | ExternalArrayType array_type = kExternalByteArray; // Bogus initialization. |
| 927 | size_t element_size = 1; // Bogus initialization. |
machenbach@chromium.org | 37be408 | 2013-11-26 13:50:38 +0000 | [diff] [blame] | 928 | Runtime::ArrayIdToTypeAndSize(arrayId, &array_type, &element_size); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 929 | |
| 930 | holder->set_buffer(*buffer); |
| 931 | holder->set_byte_offset(*byte_offset_object); |
| 932 | holder->set_byte_length(*byte_length_object); |
| 933 | |
| 934 | size_t byte_offset = NumberToSize(isolate, *byte_offset_object); |
| 935 | size_t byte_length = NumberToSize(isolate, *byte_length_object); |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 936 | ASSERT(byte_length % element_size == 0); |
| 937 | size_t length = byte_length / element_size; |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 938 | |
machenbach@chromium.org | ea46888 | 2013-11-18 08:53:19 +0000 | [diff] [blame] | 939 | if (length > static_cast<unsigned>(Smi::kMaxValue)) { |
| 940 | return isolate->Throw(*isolate->factory()-> |
| 941 | NewRangeError("invalid_typed_array_length", |
| 942 | HandleVector<Object>(NULL, 0))); |
| 943 | } |
| 944 | |
jkummerow@chromium.org | 4e308cf | 2013-05-17 13:39:16 +0000 | [diff] [blame] | 945 | Handle<Object> length_obj = isolate->factory()->NewNumberFromSize(length); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 946 | holder->set_length(*length_obj); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 947 | holder->set_weak_next(buffer->weak_first_view()); |
| 948 | buffer->set_weak_first_view(*holder); |
jkummerow@chromium.org | 4e308cf | 2013-05-17 13:39:16 +0000 | [diff] [blame] | 949 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 950 | Handle<ExternalArray> elements = |
| 951 | isolate->factory()->NewExternalArray( |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 952 | static_cast<int>(length), array_type, |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 953 | static_cast<uint8_t*>(buffer->backing_store()) + byte_offset); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 954 | holder->set_elements(*elements); |
| 955 | return isolate->heap()->undefined_value(); |
| 956 | } |
| 957 | |
| 958 | |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 959 | // Initializes a typed array from an array-like object. |
| 960 | // If an array-like object happens to be a typed array of the same type, |
| 961 | // initializes backing store using memove. |
| 962 | // |
| 963 | // Returns true if backing store was initialized or false otherwise. |
| 964 | RUNTIME_FUNCTION(MaybeObject*, Runtime_TypedArrayInitializeFromArrayLike) { |
| 965 | HandleScope scope(isolate); |
| 966 | ASSERT(args.length() == 4); |
| 967 | CONVERT_ARG_HANDLE_CHECKED(JSTypedArray, holder, 0); |
| 968 | CONVERT_SMI_ARG_CHECKED(arrayId, 1); |
| 969 | CONVERT_ARG_HANDLE_CHECKED(Object, source, 2); |
| 970 | CONVERT_ARG_HANDLE_CHECKED(Object, length_obj, 3); |
| 971 | |
| 972 | ASSERT(holder->GetInternalFieldCount() == |
| 973 | v8::ArrayBufferView::kInternalFieldCount); |
| 974 | for (int i = 0; i < v8::ArrayBufferView::kInternalFieldCount; i++) { |
| 975 | holder->SetInternalField(i, Smi::FromInt(0)); |
| 976 | } |
| 977 | |
| 978 | ExternalArrayType array_type = kExternalByteArray; // Bogus initialization. |
| 979 | size_t element_size = 1; // Bogus initialization. |
machenbach@chromium.org | 37be408 | 2013-11-26 13:50:38 +0000 | [diff] [blame] | 980 | Runtime::ArrayIdToTypeAndSize(arrayId, &array_type, &element_size); |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 981 | |
| 982 | Handle<JSArrayBuffer> buffer = isolate->factory()->NewJSArrayBuffer(); |
| 983 | size_t length = NumberToSize(isolate, *length_obj); |
machenbach@chromium.org | ea46888 | 2013-11-18 08:53:19 +0000 | [diff] [blame] | 984 | |
| 985 | if ((length > static_cast<unsigned>(Smi::kMaxValue)) || |
| 986 | (length > (kMaxInt / element_size))) { |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 987 | return isolate->Throw(*isolate->factory()-> |
machenbach@chromium.org | ea46888 | 2013-11-18 08:53:19 +0000 | [diff] [blame] | 988 | NewRangeError("invalid_typed_array_length", |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 989 | HandleVector<Object>(NULL, 0))); |
| 990 | } |
machenbach@chromium.org | feecfde | 2013-11-14 10:55:00 +0000 | [diff] [blame] | 991 | size_t byte_length = length * element_size; |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 992 | |
machenbach@chromium.org | 3d079fe | 2013-09-25 08:19:55 +0000 | [diff] [blame] | 993 | // NOTE: not initializing backing store. |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 994 | // We assume that the caller of this function will initialize holder |
| 995 | // with the loop |
| 996 | // for(i = 0; i < length; i++) { holder[i] = source[i]; } |
machenbach@chromium.org | 3d079fe | 2013-09-25 08:19:55 +0000 | [diff] [blame] | 997 | // We assume that the caller of this function is always a typed array |
| 998 | // constructor. |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 999 | // If source is a typed array, this loop will always run to completion, |
| 1000 | // so we are sure that the backing store will be initialized. |
machenbach@chromium.org | 3d079fe | 2013-09-25 08:19:55 +0000 | [diff] [blame] | 1001 | // Otherwise, the indexing operation might throw, so the loop will not |
| 1002 | // run to completion and the typed array might remain partly initialized. |
| 1003 | // However we further assume that the caller of this function is a typed array |
| 1004 | // constructor, and the exception will propagate out of the constructor, |
| 1005 | // therefore uninitialized memory will not be accessible by a user program. |
| 1006 | // |
| 1007 | // TODO(dslomov): revise this once we support subclassing. |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 1008 | |
| 1009 | if (!Runtime::SetupArrayBufferAllocatingData( |
machenbach@chromium.org | 3d079fe | 2013-09-25 08:19:55 +0000 | [diff] [blame] | 1010 | isolate, buffer, byte_length, false)) { |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 1011 | return isolate->Throw(*isolate->factory()-> |
| 1012 | NewRangeError("invalid_array_buffer_length", |
| 1013 | HandleVector<Object>(NULL, 0))); |
| 1014 | } |
| 1015 | |
| 1016 | holder->set_buffer(*buffer); |
| 1017 | holder->set_byte_offset(Smi::FromInt(0)); |
| 1018 | Handle<Object> byte_length_obj( |
| 1019 | isolate->factory()->NewNumberFromSize(byte_length)); |
| 1020 | holder->set_byte_length(*byte_length_obj); |
| 1021 | holder->set_length(*length_obj); |
| 1022 | holder->set_weak_next(buffer->weak_first_view()); |
| 1023 | buffer->set_weak_first_view(*holder); |
| 1024 | |
| 1025 | Handle<ExternalArray> elements = |
| 1026 | isolate->factory()->NewExternalArray( |
| 1027 | static_cast<int>(length), array_type, |
| 1028 | static_cast<uint8_t*>(buffer->backing_store())); |
| 1029 | holder->set_elements(*elements); |
| 1030 | |
| 1031 | if (source->IsJSTypedArray()) { |
| 1032 | Handle<JSTypedArray> typed_array(JSTypedArray::cast(*source)); |
| 1033 | |
| 1034 | if (typed_array->type() == holder->type()) { |
| 1035 | uint8_t* backing_store = |
| 1036 | static_cast<uint8_t*>( |
| 1037 | JSArrayBuffer::cast(typed_array->buffer())->backing_store()); |
| 1038 | size_t source_byte_offset = |
| 1039 | NumberToSize(isolate, typed_array->byte_offset()); |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 1040 | memcpy( |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 1041 | buffer->backing_store(), |
| 1042 | backing_store + source_byte_offset, |
| 1043 | byte_length); |
| 1044 | return *isolate->factory()->true_value(); |
| 1045 | } else { |
| 1046 | return *isolate->factory()->false_value(); |
| 1047 | } |
| 1048 | } |
| 1049 | |
| 1050 | return *isolate->factory()->false_value(); |
| 1051 | } |
| 1052 | |
| 1053 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 1054 | #define TYPED_ARRAY_GETTER(getter, accessor) \ |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 1055 | RUNTIME_FUNCTION(MaybeObject*, Runtime_TypedArrayGet##getter) { \ |
| 1056 | HandleScope scope(isolate); \ |
| 1057 | ASSERT(args.length() == 1); \ |
| 1058 | CONVERT_ARG_HANDLE_CHECKED(Object, holder, 0); \ |
| 1059 | if (!holder->IsJSTypedArray()) \ |
| 1060 | return isolate->Throw(*isolate->factory()->NewTypeError( \ |
| 1061 | "not_typed_array", HandleVector<Object>(NULL, 0))); \ |
| 1062 | Handle<JSTypedArray> typed_array(JSTypedArray::cast(*holder)); \ |
| 1063 | return typed_array->accessor(); \ |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 1064 | } |
| 1065 | |
| 1066 | TYPED_ARRAY_GETTER(Buffer, buffer) |
| 1067 | TYPED_ARRAY_GETTER(ByteLength, byte_length) |
| 1068 | TYPED_ARRAY_GETTER(ByteOffset, byte_offset) |
| 1069 | TYPED_ARRAY_GETTER(Length, length) |
| 1070 | |
| 1071 | #undef TYPED_ARRAY_GETTER |
| 1072 | |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 1073 | // Return codes for Runtime_TypedArraySetFastCases. |
| 1074 | // Should be synchronized with typedarray.js natives. |
| 1075 | enum TypedArraySetResultCodes { |
| 1076 | // Set from typed array of the same type. |
| 1077 | // This is processed by TypedArraySetFastCases |
| 1078 | TYPED_ARRAY_SET_TYPED_ARRAY_SAME_TYPE = 0, |
| 1079 | // Set from typed array of the different type, overlapping in memory. |
| 1080 | TYPED_ARRAY_SET_TYPED_ARRAY_OVERLAPPING = 1, |
| 1081 | // Set from typed array of the different type, non-overlapping. |
| 1082 | TYPED_ARRAY_SET_TYPED_ARRAY_NONOVERLAPPING = 2, |
| 1083 | // Set from non-typed array. |
| 1084 | TYPED_ARRAY_SET_NON_TYPED_ARRAY = 3 |
| 1085 | }; |
| 1086 | |
| 1087 | |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 1088 | RUNTIME_FUNCTION(MaybeObject*, Runtime_TypedArraySetFastCases) { |
| 1089 | HandleScope scope(isolate); |
| 1090 | CONVERT_ARG_HANDLE_CHECKED(Object, target_obj, 0); |
| 1091 | CONVERT_ARG_HANDLE_CHECKED(Object, source_obj, 1); |
| 1092 | CONVERT_ARG_HANDLE_CHECKED(Object, offset_obj, 2); |
| 1093 | |
| 1094 | if (!target_obj->IsJSTypedArray()) |
| 1095 | return isolate->Throw(*isolate->factory()->NewTypeError( |
| 1096 | "not_typed_array", HandleVector<Object>(NULL, 0))); |
| 1097 | |
| 1098 | if (!source_obj->IsJSTypedArray()) |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 1099 | return Smi::FromInt(TYPED_ARRAY_SET_NON_TYPED_ARRAY); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 1100 | |
| 1101 | Handle<JSTypedArray> target(JSTypedArray::cast(*target_obj)); |
| 1102 | Handle<JSTypedArray> source(JSTypedArray::cast(*source_obj)); |
| 1103 | size_t offset = NumberToSize(isolate, *offset_obj); |
| 1104 | size_t target_length = NumberToSize(isolate, target->length()); |
| 1105 | size_t source_length = NumberToSize(isolate, source->length()); |
| 1106 | size_t target_byte_length = NumberToSize(isolate, target->byte_length()); |
| 1107 | size_t source_byte_length = NumberToSize(isolate, source->byte_length()); |
| 1108 | if (offset > target_length || |
| 1109 | offset + source_length > target_length || |
| 1110 | offset + source_length < offset) // overflow |
| 1111 | return isolate->Throw(*isolate->factory()->NewRangeError( |
| 1112 | "typed_array_set_source_too_large", HandleVector<Object>(NULL, 0))); |
| 1113 | |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 1114 | size_t target_offset = NumberToSize(isolate, target->byte_offset()); |
| 1115 | size_t source_offset = NumberToSize(isolate, source->byte_offset()); |
| 1116 | uint8_t* target_base = |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 1117 | static_cast<uint8_t*>( |
| 1118 | JSArrayBuffer::cast(target->buffer())->backing_store()) + target_offset; |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 1119 | uint8_t* source_base = |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 1120 | static_cast<uint8_t*>( |
| 1121 | JSArrayBuffer::cast(source->buffer())->backing_store()) + source_offset; |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 1122 | |
| 1123 | // Typed arrays of the same type: use memmove. |
| 1124 | if (target->type() == source->type()) { |
| 1125 | memmove(target_base + offset * target->element_size(), |
| 1126 | source_base, source_byte_length); |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 1127 | return Smi::FromInt(TYPED_ARRAY_SET_TYPED_ARRAY_SAME_TYPE); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 1128 | } |
| 1129 | |
| 1130 | // Typed arrays of different types over the same backing store |
| 1131 | if ((source_base <= target_base && |
| 1132 | source_base + source_byte_length > target_base) || |
| 1133 | (target_base <= source_base && |
| 1134 | target_base + target_byte_length > source_base)) { |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 1135 | // We do not support overlapping ArrayBuffers |
| 1136 | ASSERT( |
| 1137 | JSArrayBuffer::cast(target->buffer())->backing_store() == |
| 1138 | JSArrayBuffer::cast(source->buffer())->backing_store()); |
| 1139 | return Smi::FromInt(TYPED_ARRAY_SET_TYPED_ARRAY_OVERLAPPING); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 1140 | } else { // Non-overlapping typed arrays |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 1141 | return Smi::FromInt(TYPED_ARRAY_SET_TYPED_ARRAY_NONOVERLAPPING); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 1142 | } |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 1143 | } |
| 1144 | |
| 1145 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 1146 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DataViewInitialize) { |
| 1147 | HandleScope scope(isolate); |
| 1148 | ASSERT(args.length() == 4); |
| 1149 | CONVERT_ARG_HANDLE_CHECKED(JSDataView, holder, 0); |
| 1150 | CONVERT_ARG_HANDLE_CHECKED(JSArrayBuffer, buffer, 1); |
| 1151 | CONVERT_ARG_HANDLE_CHECKED(Object, byte_offset, 2); |
| 1152 | CONVERT_ARG_HANDLE_CHECKED(Object, byte_length, 3); |
| 1153 | |
mstarzinger@chromium.org | e0e1b0d | 2013-07-08 08:38:06 +0000 | [diff] [blame] | 1154 | ASSERT(holder->GetInternalFieldCount() == |
| 1155 | v8::ArrayBufferView::kInternalFieldCount); |
| 1156 | for (int i = 0; i < v8::ArrayBufferView::kInternalFieldCount; i++) { |
| 1157 | holder->SetInternalField(i, Smi::FromInt(0)); |
| 1158 | } |
| 1159 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 1160 | holder->set_buffer(*buffer); |
| 1161 | ASSERT(byte_offset->IsNumber()); |
| 1162 | ASSERT( |
| 1163 | NumberToSize(isolate, buffer->byte_length()) >= |
| 1164 | NumberToSize(isolate, *byte_offset) |
| 1165 | + NumberToSize(isolate, *byte_length)); |
| 1166 | holder->set_byte_offset(*byte_offset); |
| 1167 | ASSERT(byte_length->IsNumber()); |
| 1168 | holder->set_byte_length(*byte_length); |
| 1169 | |
| 1170 | holder->set_weak_next(buffer->weak_first_view()); |
| 1171 | buffer->set_weak_first_view(*holder); |
| 1172 | |
| 1173 | return isolate->heap()->undefined_value(); |
| 1174 | } |
| 1175 | |
| 1176 | |
| 1177 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DataViewGetBuffer) { |
| 1178 | HandleScope scope(isolate); |
| 1179 | ASSERT(args.length() == 1); |
| 1180 | CONVERT_ARG_HANDLE_CHECKED(JSDataView, data_view, 0); |
| 1181 | return data_view->buffer(); |
| 1182 | } |
| 1183 | |
| 1184 | |
| 1185 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DataViewGetByteOffset) { |
| 1186 | HandleScope scope(isolate); |
| 1187 | ASSERT(args.length() == 1); |
| 1188 | CONVERT_ARG_HANDLE_CHECKED(JSDataView, data_view, 0); |
| 1189 | return data_view->byte_offset(); |
| 1190 | } |
| 1191 | |
| 1192 | |
| 1193 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DataViewGetByteLength) { |
| 1194 | HandleScope scope(isolate); |
| 1195 | ASSERT(args.length() == 1); |
| 1196 | CONVERT_ARG_HANDLE_CHECKED(JSDataView, data_view, 0); |
| 1197 | return data_view->byte_length(); |
| 1198 | } |
| 1199 | |
| 1200 | |
| 1201 | inline static bool NeedToFlipBytes(bool is_little_endian) { |
| 1202 | #ifdef V8_TARGET_LITTLE_ENDIAN |
| 1203 | return !is_little_endian; |
| 1204 | #else |
| 1205 | return is_little_endian; |
| 1206 | #endif |
| 1207 | } |
| 1208 | |
| 1209 | |
| 1210 | template<int n> |
| 1211 | inline void CopyBytes(uint8_t* target, uint8_t* source) { |
| 1212 | for (int i = 0; i < n; i++) { |
| 1213 | *(target++) = *(source++); |
| 1214 | } |
| 1215 | } |
| 1216 | |
| 1217 | |
| 1218 | template<int n> |
| 1219 | inline void FlipBytes(uint8_t* target, uint8_t* source) { |
| 1220 | source = source + (n-1); |
| 1221 | for (int i = 0; i < n; i++) { |
| 1222 | *(target++) = *(source--); |
| 1223 | } |
| 1224 | } |
| 1225 | |
| 1226 | |
| 1227 | template<typename T> |
| 1228 | inline static bool DataViewGetValue( |
| 1229 | Isolate* isolate, |
| 1230 | Handle<JSDataView> data_view, |
| 1231 | Handle<Object> byte_offset_obj, |
| 1232 | bool is_little_endian, |
| 1233 | T* result) { |
machenbach@chromium.org | af9cfcb | 2013-11-19 11:05:18 +0000 | [diff] [blame] | 1234 | size_t byte_offset = 0; |
| 1235 | if (!TryNumberToSize(isolate, *byte_offset_obj, &byte_offset)) { |
| 1236 | return false; |
| 1237 | } |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 1238 | Handle<JSArrayBuffer> buffer(JSArrayBuffer::cast(data_view->buffer())); |
| 1239 | |
| 1240 | size_t data_view_byte_offset = |
| 1241 | NumberToSize(isolate, data_view->byte_offset()); |
| 1242 | size_t data_view_byte_length = |
| 1243 | NumberToSize(isolate, data_view->byte_length()); |
| 1244 | if (byte_offset + sizeof(T) > data_view_byte_length || |
| 1245 | byte_offset + sizeof(T) < byte_offset) { // overflow |
| 1246 | return false; |
| 1247 | } |
| 1248 | |
| 1249 | union Value { |
| 1250 | T data; |
| 1251 | uint8_t bytes[sizeof(T)]; |
| 1252 | }; |
| 1253 | |
| 1254 | Value value; |
| 1255 | size_t buffer_offset = data_view_byte_offset + byte_offset; |
| 1256 | ASSERT( |
| 1257 | NumberToSize(isolate, buffer->byte_length()) |
| 1258 | >= buffer_offset + sizeof(T)); |
| 1259 | uint8_t* source = |
| 1260 | static_cast<uint8_t*>(buffer->backing_store()) + buffer_offset; |
| 1261 | if (NeedToFlipBytes(is_little_endian)) { |
| 1262 | FlipBytes<sizeof(T)>(value.bytes, source); |
| 1263 | } else { |
| 1264 | CopyBytes<sizeof(T)>(value.bytes, source); |
| 1265 | } |
| 1266 | *result = value.data; |
| 1267 | return true; |
| 1268 | } |
| 1269 | |
| 1270 | |
| 1271 | template<typename T> |
| 1272 | static bool DataViewSetValue( |
| 1273 | Isolate* isolate, |
| 1274 | Handle<JSDataView> data_view, |
| 1275 | Handle<Object> byte_offset_obj, |
| 1276 | bool is_little_endian, |
| 1277 | T data) { |
machenbach@chromium.org | af9cfcb | 2013-11-19 11:05:18 +0000 | [diff] [blame] | 1278 | size_t byte_offset = 0; |
| 1279 | if (!TryNumberToSize(isolate, *byte_offset_obj, &byte_offset)) { |
| 1280 | return false; |
| 1281 | } |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 1282 | Handle<JSArrayBuffer> buffer(JSArrayBuffer::cast(data_view->buffer())); |
| 1283 | |
| 1284 | size_t data_view_byte_offset = |
| 1285 | NumberToSize(isolate, data_view->byte_offset()); |
| 1286 | size_t data_view_byte_length = |
| 1287 | NumberToSize(isolate, data_view->byte_length()); |
| 1288 | if (byte_offset + sizeof(T) > data_view_byte_length || |
| 1289 | byte_offset + sizeof(T) < byte_offset) { // overflow |
| 1290 | return false; |
| 1291 | } |
| 1292 | |
| 1293 | union Value { |
| 1294 | T data; |
| 1295 | uint8_t bytes[sizeof(T)]; |
| 1296 | }; |
| 1297 | |
| 1298 | Value value; |
| 1299 | value.data = data; |
| 1300 | size_t buffer_offset = data_view_byte_offset + byte_offset; |
| 1301 | ASSERT( |
| 1302 | NumberToSize(isolate, buffer->byte_length()) |
| 1303 | >= buffer_offset + sizeof(T)); |
| 1304 | uint8_t* target = |
| 1305 | static_cast<uint8_t*>(buffer->backing_store()) + buffer_offset; |
| 1306 | if (NeedToFlipBytes(is_little_endian)) { |
| 1307 | FlipBytes<sizeof(T)>(target, value.bytes); |
| 1308 | } else { |
| 1309 | CopyBytes<sizeof(T)>(target, value.bytes); |
| 1310 | } |
| 1311 | return true; |
| 1312 | } |
| 1313 | |
| 1314 | |
| 1315 | #define DATA_VIEW_GETTER(TypeName, Type, Converter) \ |
| 1316 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DataViewGet##TypeName) { \ |
| 1317 | HandleScope scope(isolate); \ |
| 1318 | ASSERT(args.length() == 3); \ |
| 1319 | CONVERT_ARG_HANDLE_CHECKED(JSDataView, holder, 0); \ |
| 1320 | CONVERT_ARG_HANDLE_CHECKED(Object, offset, 1); \ |
| 1321 | CONVERT_BOOLEAN_ARG_CHECKED(is_little_endian, 2); \ |
| 1322 | Type result; \ |
| 1323 | if (DataViewGetValue( \ |
| 1324 | isolate, holder, offset, is_little_endian, &result)) { \ |
| 1325 | return isolate->heap()->Converter(result); \ |
| 1326 | } else { \ |
| 1327 | return isolate->Throw(*isolate->factory()->NewRangeError( \ |
| 1328 | "invalid_data_view_accessor_offset", \ |
| 1329 | HandleVector<Object>(NULL, 0))); \ |
| 1330 | } \ |
| 1331 | } |
| 1332 | |
| 1333 | DATA_VIEW_GETTER(Uint8, uint8_t, NumberFromUint32) |
| 1334 | DATA_VIEW_GETTER(Int8, int8_t, NumberFromInt32) |
| 1335 | DATA_VIEW_GETTER(Uint16, uint16_t, NumberFromUint32) |
| 1336 | DATA_VIEW_GETTER(Int16, int16_t, NumberFromInt32) |
| 1337 | DATA_VIEW_GETTER(Uint32, uint32_t, NumberFromUint32) |
| 1338 | DATA_VIEW_GETTER(Int32, int32_t, NumberFromInt32) |
| 1339 | DATA_VIEW_GETTER(Float32, float, NumberFromDouble) |
| 1340 | DATA_VIEW_GETTER(Float64, double, NumberFromDouble) |
| 1341 | |
| 1342 | #undef DATA_VIEW_GETTER |
| 1343 | |
jkummerow@chromium.org | 1048047 | 2013-07-17 08:22:15 +0000 | [diff] [blame] | 1344 | |
| 1345 | template <typename T> |
| 1346 | static T DataViewConvertValue(double value); |
| 1347 | |
| 1348 | |
| 1349 | template <> |
| 1350 | int8_t DataViewConvertValue<int8_t>(double value) { |
| 1351 | return static_cast<int8_t>(DoubleToInt32(value)); |
| 1352 | } |
| 1353 | |
| 1354 | |
| 1355 | template <> |
| 1356 | int16_t DataViewConvertValue<int16_t>(double value) { |
| 1357 | return static_cast<int16_t>(DoubleToInt32(value)); |
| 1358 | } |
| 1359 | |
| 1360 | |
| 1361 | template <> |
| 1362 | int32_t DataViewConvertValue<int32_t>(double value) { |
| 1363 | return DoubleToInt32(value); |
| 1364 | } |
| 1365 | |
| 1366 | |
| 1367 | template <> |
| 1368 | uint8_t DataViewConvertValue<uint8_t>(double value) { |
| 1369 | return static_cast<uint8_t>(DoubleToUint32(value)); |
| 1370 | } |
| 1371 | |
| 1372 | |
| 1373 | template <> |
| 1374 | uint16_t DataViewConvertValue<uint16_t>(double value) { |
| 1375 | return static_cast<uint16_t>(DoubleToUint32(value)); |
| 1376 | } |
| 1377 | |
| 1378 | |
| 1379 | template <> |
| 1380 | uint32_t DataViewConvertValue<uint32_t>(double value) { |
| 1381 | return DoubleToUint32(value); |
| 1382 | } |
| 1383 | |
| 1384 | |
| 1385 | template <> |
| 1386 | float DataViewConvertValue<float>(double value) { |
| 1387 | return static_cast<float>(value); |
| 1388 | } |
| 1389 | |
| 1390 | |
| 1391 | template <> |
| 1392 | double DataViewConvertValue<double>(double value) { |
| 1393 | return value; |
| 1394 | } |
| 1395 | |
| 1396 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 1397 | #define DATA_VIEW_SETTER(TypeName, Type) \ |
| 1398 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DataViewSet##TypeName) { \ |
| 1399 | HandleScope scope(isolate); \ |
| 1400 | ASSERT(args.length() == 4); \ |
| 1401 | CONVERT_ARG_HANDLE_CHECKED(JSDataView, holder, 0); \ |
| 1402 | CONVERT_ARG_HANDLE_CHECKED(Object, offset, 1); \ |
| 1403 | CONVERT_ARG_HANDLE_CHECKED(Object, value, 2); \ |
| 1404 | CONVERT_BOOLEAN_ARG_CHECKED(is_little_endian, 3); \ |
jkummerow@chromium.org | 1048047 | 2013-07-17 08:22:15 +0000 | [diff] [blame] | 1405 | Type v = DataViewConvertValue<Type>(value->Number()); \ |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 1406 | if (DataViewSetValue( \ |
| 1407 | isolate, holder, offset, is_little_endian, v)) { \ |
| 1408 | return isolate->heap()->undefined_value(); \ |
| 1409 | } else { \ |
| 1410 | return isolate->Throw(*isolate->factory()->NewRangeError( \ |
| 1411 | "invalid_data_view_accessor_offset", \ |
| 1412 | HandleVector<Object>(NULL, 0))); \ |
| 1413 | } \ |
| 1414 | } |
| 1415 | |
| 1416 | DATA_VIEW_SETTER(Uint8, uint8_t) |
| 1417 | DATA_VIEW_SETTER(Int8, int8_t) |
| 1418 | DATA_VIEW_SETTER(Uint16, uint16_t) |
| 1419 | DATA_VIEW_SETTER(Int16, int16_t) |
| 1420 | DATA_VIEW_SETTER(Uint32, uint32_t) |
| 1421 | DATA_VIEW_SETTER(Int32, int32_t) |
| 1422 | DATA_VIEW_SETTER(Float32, float) |
| 1423 | DATA_VIEW_SETTER(Float64, double) |
| 1424 | |
| 1425 | #undef DATA_VIEW_SETTER |
| 1426 | |
| 1427 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1428 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SetInitialize) { |
| 1429 | HandleScope scope(isolate); |
| 1430 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 1431 | CONVERT_ARG_HANDLE_CHECKED(JSSet, holder, 0); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1432 | Handle<ObjectHashSet> table = isolate->factory()->NewObjectHashSet(0); |
| 1433 | holder->set_table(*table); |
| 1434 | return *holder; |
| 1435 | } |
| 1436 | |
| 1437 | |
| 1438 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SetAdd) { |
| 1439 | HandleScope scope(isolate); |
| 1440 | ASSERT(args.length() == 2); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 1441 | CONVERT_ARG_HANDLE_CHECKED(JSSet, holder, 0); |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 1442 | Handle<Object> key(args[1], isolate); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1443 | Handle<ObjectHashSet> table(ObjectHashSet::cast(holder->table())); |
verwaest@chromium.org | 057bd50 | 2013-11-06 12:03:29 +0000 | [diff] [blame] | 1444 | table = ObjectHashSet::Add(table, key); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1445 | holder->set_table(*table); |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 1446 | return isolate->heap()->undefined_value(); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1447 | } |
| 1448 | |
| 1449 | |
| 1450 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SetHas) { |
| 1451 | HandleScope scope(isolate); |
| 1452 | ASSERT(args.length() == 2); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 1453 | CONVERT_ARG_HANDLE_CHECKED(JSSet, holder, 0); |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 1454 | Handle<Object> key(args[1], isolate); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1455 | Handle<ObjectHashSet> table(ObjectHashSet::cast(holder->table())); |
| 1456 | return isolate->heap()->ToBoolean(table->Contains(*key)); |
| 1457 | } |
| 1458 | |
| 1459 | |
| 1460 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SetDelete) { |
| 1461 | HandleScope scope(isolate); |
| 1462 | ASSERT(args.length() == 2); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 1463 | CONVERT_ARG_HANDLE_CHECKED(JSSet, holder, 0); |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 1464 | Handle<Object> key(args[1], isolate); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1465 | Handle<ObjectHashSet> table(ObjectHashSet::cast(holder->table())); |
verwaest@chromium.org | 057bd50 | 2013-11-06 12:03:29 +0000 | [diff] [blame] | 1466 | table = ObjectHashSet::Remove(table, key); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1467 | holder->set_table(*table); |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 1468 | return isolate->heap()->undefined_value(); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1469 | } |
| 1470 | |
| 1471 | |
mvstanton@chromium.org | e4ac3ef | 2012-11-12 14:53:34 +0000 | [diff] [blame] | 1472 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SetGetSize) { |
| 1473 | HandleScope scope(isolate); |
| 1474 | ASSERT(args.length() == 1); |
| 1475 | CONVERT_ARG_HANDLE_CHECKED(JSSet, holder, 0); |
| 1476 | Handle<ObjectHashSet> table(ObjectHashSet::cast(holder->table())); |
| 1477 | return Smi::FromInt(table->NumberOfElements()); |
| 1478 | } |
| 1479 | |
| 1480 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1481 | RUNTIME_FUNCTION(MaybeObject*, Runtime_MapInitialize) { |
| 1482 | HandleScope scope(isolate); |
| 1483 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 1484 | CONVERT_ARG_HANDLE_CHECKED(JSMap, holder, 0); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1485 | Handle<ObjectHashTable> table = isolate->factory()->NewObjectHashTable(0); |
| 1486 | holder->set_table(*table); |
| 1487 | return *holder; |
| 1488 | } |
| 1489 | |
| 1490 | |
| 1491 | RUNTIME_FUNCTION(MaybeObject*, Runtime_MapGet) { |
| 1492 | HandleScope scope(isolate); |
| 1493 | ASSERT(args.length() == 2); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 1494 | CONVERT_ARG_HANDLE_CHECKED(JSMap, holder, 0); |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 1495 | CONVERT_ARG_HANDLE_CHECKED(Object, key, 1); |
| 1496 | Handle<ObjectHashTable> table(ObjectHashTable::cast(holder->table())); |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 1497 | Handle<Object> lookup(table->Lookup(*key), isolate); |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 1498 | return lookup->IsTheHole() ? isolate->heap()->undefined_value() : *lookup; |
| 1499 | } |
| 1500 | |
| 1501 | |
| 1502 | RUNTIME_FUNCTION(MaybeObject*, Runtime_MapHas) { |
| 1503 | HandleScope scope(isolate); |
| 1504 | ASSERT(args.length() == 2); |
| 1505 | CONVERT_ARG_HANDLE_CHECKED(JSMap, holder, 0); |
| 1506 | CONVERT_ARG_HANDLE_CHECKED(Object, key, 1); |
| 1507 | Handle<ObjectHashTable> table(ObjectHashTable::cast(holder->table())); |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 1508 | Handle<Object> lookup(table->Lookup(*key), isolate); |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 1509 | return isolate->heap()->ToBoolean(!lookup->IsTheHole()); |
| 1510 | } |
| 1511 | |
| 1512 | |
| 1513 | RUNTIME_FUNCTION(MaybeObject*, Runtime_MapDelete) { |
| 1514 | HandleScope scope(isolate); |
| 1515 | ASSERT(args.length() == 2); |
| 1516 | CONVERT_ARG_HANDLE_CHECKED(JSMap, holder, 0); |
| 1517 | CONVERT_ARG_HANDLE_CHECKED(Object, key, 1); |
| 1518 | Handle<ObjectHashTable> table(ObjectHashTable::cast(holder->table())); |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 1519 | Handle<Object> lookup(table->Lookup(*key), isolate); |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 1520 | Handle<ObjectHashTable> new_table = |
verwaest@chromium.org | 057bd50 | 2013-11-06 12:03:29 +0000 | [diff] [blame] | 1521 | ObjectHashTable::Put(table, key, isolate->factory()->the_hole_value()); |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 1522 | holder->set_table(*new_table); |
| 1523 | return isolate->heap()->ToBoolean(!lookup->IsTheHole()); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1524 | } |
| 1525 | |
| 1526 | |
| 1527 | RUNTIME_FUNCTION(MaybeObject*, Runtime_MapSet) { |
| 1528 | HandleScope scope(isolate); |
| 1529 | ASSERT(args.length() == 3); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 1530 | CONVERT_ARG_HANDLE_CHECKED(JSMap, holder, 0); |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 1531 | CONVERT_ARG_HANDLE_CHECKED(Object, key, 1); |
| 1532 | CONVERT_ARG_HANDLE_CHECKED(Object, value, 2); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1533 | Handle<ObjectHashTable> table(ObjectHashTable::cast(holder->table())); |
verwaest@chromium.org | 057bd50 | 2013-11-06 12:03:29 +0000 | [diff] [blame] | 1534 | Handle<ObjectHashTable> new_table = ObjectHashTable::Put(table, key, value); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1535 | holder->set_table(*new_table); |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 1536 | return isolate->heap()->undefined_value(); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1537 | } |
| 1538 | |
| 1539 | |
mvstanton@chromium.org | e4ac3ef | 2012-11-12 14:53:34 +0000 | [diff] [blame] | 1540 | RUNTIME_FUNCTION(MaybeObject*, Runtime_MapGetSize) { |
| 1541 | HandleScope scope(isolate); |
| 1542 | ASSERT(args.length() == 1); |
| 1543 | CONVERT_ARG_HANDLE_CHECKED(JSMap, holder, 0); |
| 1544 | Handle<ObjectHashTable> table(ObjectHashTable::cast(holder->table())); |
| 1545 | return Smi::FromInt(table->NumberOfElements()); |
| 1546 | } |
| 1547 | |
| 1548 | |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 1549 | static JSWeakCollection* WeakCollectionInitialize(Isolate* isolate, |
| 1550 | Handle<JSWeakCollection> weak_collection) { |
| 1551 | ASSERT(weak_collection->map()->inobject_properties() == 0); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 1552 | Handle<ObjectHashTable> table = isolate->factory()->NewObjectHashTable(0); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 1553 | weak_collection->set_table(*table); |
| 1554 | weak_collection->set_next(Smi::FromInt(0)); |
| 1555 | return *weak_collection; |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 1556 | } |
| 1557 | |
| 1558 | |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 1559 | RUNTIME_FUNCTION(MaybeObject*, Runtime_WeakCollectionInitialize) { |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 1560 | HandleScope scope(isolate); |
| 1561 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 1562 | CONVERT_ARG_HANDLE_CHECKED(JSWeakCollection, weak_collection, 0); |
| 1563 | return WeakCollectionInitialize(isolate, weak_collection); |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 1564 | } |
| 1565 | |
| 1566 | |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 1567 | RUNTIME_FUNCTION(MaybeObject*, Runtime_WeakCollectionGet) { |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 1568 | HandleScope scope(isolate); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 1569 | ASSERT(args.length() == 2); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 1570 | CONVERT_ARG_HANDLE_CHECKED(JSWeakCollection, weak_collection, 0); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1571 | CONVERT_ARG_HANDLE_CHECKED(Object, key, 1); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 1572 | Handle<ObjectHashTable> table( |
| 1573 | ObjectHashTable::cast(weak_collection->table())); |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 1574 | Handle<Object> lookup(table->Lookup(*key), isolate); |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 1575 | return lookup->IsTheHole() ? isolate->heap()->undefined_value() : *lookup; |
| 1576 | } |
| 1577 | |
| 1578 | |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 1579 | RUNTIME_FUNCTION(MaybeObject*, Runtime_WeakCollectionHas) { |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 1580 | HandleScope scope(isolate); |
| 1581 | ASSERT(args.length() == 2); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 1582 | CONVERT_ARG_HANDLE_CHECKED(JSWeakCollection, weak_collection, 0); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1583 | CONVERT_ARG_HANDLE_CHECKED(Object, key, 1); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 1584 | Handle<ObjectHashTable> table( |
| 1585 | ObjectHashTable::cast(weak_collection->table())); |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 1586 | Handle<Object> lookup(table->Lookup(*key), isolate); |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 1587 | return isolate->heap()->ToBoolean(!lookup->IsTheHole()); |
| 1588 | } |
| 1589 | |
| 1590 | |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 1591 | RUNTIME_FUNCTION(MaybeObject*, Runtime_WeakCollectionDelete) { |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 1592 | HandleScope scope(isolate); |
| 1593 | ASSERT(args.length() == 2); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 1594 | CONVERT_ARG_HANDLE_CHECKED(JSWeakCollection, weak_collection, 0); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1595 | CONVERT_ARG_HANDLE_CHECKED(Object, key, 1); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 1596 | Handle<ObjectHashTable> table(ObjectHashTable::cast( |
| 1597 | weak_collection->table())); |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 1598 | Handle<Object> lookup(table->Lookup(*key), isolate); |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 1599 | Handle<ObjectHashTable> new_table = |
verwaest@chromium.org | 057bd50 | 2013-11-06 12:03:29 +0000 | [diff] [blame] | 1600 | ObjectHashTable::Put(table, key, isolate->factory()->the_hole_value()); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 1601 | weak_collection->set_table(*new_table); |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 1602 | return isolate->heap()->ToBoolean(!lookup->IsTheHole()); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 1603 | } |
| 1604 | |
| 1605 | |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 1606 | RUNTIME_FUNCTION(MaybeObject*, Runtime_WeakCollectionSet) { |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 1607 | HandleScope scope(isolate); |
| 1608 | ASSERT(args.length() == 3); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 1609 | CONVERT_ARG_HANDLE_CHECKED(JSWeakCollection, weak_collection, 0); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1610 | CONVERT_ARG_HANDLE_CHECKED(Object, key, 1); |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 1611 | Handle<Object> value(args[2], isolate); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 1612 | Handle<ObjectHashTable> table( |
| 1613 | ObjectHashTable::cast(weak_collection->table())); |
verwaest@chromium.org | 057bd50 | 2013-11-06 12:03:29 +0000 | [diff] [blame] | 1614 | Handle<ObjectHashTable> new_table = ObjectHashTable::Put(table, key, value); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 1615 | weak_collection->set_table(*new_table); |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 1616 | return isolate->heap()->undefined_value(); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 1617 | } |
| 1618 | |
| 1619 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 1620 | RUNTIME_FUNCTION(MaybeObject*, Runtime_ClassOf) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 1621 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1622 | ASSERT(args.length() == 1); |
| 1623 | Object* obj = args[0]; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1624 | if (!obj->IsJSObject()) return isolate->heap()->null_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1625 | return JSObject::cast(obj)->class_name(); |
| 1626 | } |
| 1627 | |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 1628 | |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 1629 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetPrototype) { |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1630 | HandleScope scope(isolate); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 1631 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1632 | CONVERT_ARG_HANDLE_CHECKED(Object, obj, 0); |
ricow@chromium.org | 4668a2c | 2011-08-29 10:41:00 +0000 | [diff] [blame] | 1633 | // We don't expect access checks to be needed on JSProxy objects. |
| 1634 | ASSERT(!obj->IsAccessCheckNeeded() || obj->IsJSObject()); |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 1635 | do { |
ricow@chromium.org | 4668a2c | 2011-08-29 10:41:00 +0000 | [diff] [blame] | 1636 | if (obj->IsAccessCheckNeeded() && |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1637 | !isolate->MayNamedAccessWrapper(Handle<JSObject>::cast(obj), |
| 1638 | isolate->factory()->proto_string(), |
| 1639 | v8::ACCESS_GET)) { |
| 1640 | isolate->ReportFailedAccessCheck(JSObject::cast(*obj), v8::ACCESS_GET); |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 1641 | RETURN_IF_SCHEDULED_EXCEPTION(isolate); |
ricow@chromium.org | 4668a2c | 2011-08-29 10:41:00 +0000 | [diff] [blame] | 1642 | return isolate->heap()->undefined_value(); |
| 1643 | } |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1644 | obj = handle(obj->GetPrototype(isolate), isolate); |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 1645 | } while (obj->IsJSObject() && |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1646 | JSObject::cast(*obj)->map()->is_hidden_prototype()); |
| 1647 | return *obj; |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 1648 | } |
| 1649 | |
| 1650 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 1651 | static inline Object* GetPrototypeSkipHiddenPrototypes(Isolate* isolate, |
| 1652 | Object* receiver) { |
| 1653 | Object* current = receiver->GetPrototype(isolate); |
| 1654 | while (current->IsJSObject() && |
| 1655 | JSObject::cast(current)->map()->is_hidden_prototype()) { |
| 1656 | current = current->GetPrototype(isolate); |
| 1657 | } |
| 1658 | return current; |
| 1659 | } |
| 1660 | |
| 1661 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1662 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SetPrototype) { |
machenbach@chromium.org | c1789ee | 2013-07-05 07:09:57 +0000 | [diff] [blame] | 1663 | HandleScope scope(isolate); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1664 | ASSERT(args.length() == 2); |
machenbach@chromium.org | c1789ee | 2013-07-05 07:09:57 +0000 | [diff] [blame] | 1665 | CONVERT_ARG_HANDLE_CHECKED(JSObject, obj, 0); |
| 1666 | CONVERT_ARG_HANDLE_CHECKED(Object, prototype, 1); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 1667 | if (FLAG_harmony_observation && obj->map()->is_observed()) { |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 1668 | Handle<Object> old_value( |
machenbach@chromium.org | c1789ee | 2013-07-05 07:09:57 +0000 | [diff] [blame] | 1669 | GetPrototypeSkipHiddenPrototypes(isolate, *obj), isolate); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 1670 | |
machenbach@chromium.org | c1789ee | 2013-07-05 07:09:57 +0000 | [diff] [blame] | 1671 | Handle<Object> result = JSObject::SetPrototype(obj, prototype, true); |
mstarzinger@chromium.org | e0e1b0d | 2013-07-08 08:38:06 +0000 | [diff] [blame] | 1672 | RETURN_IF_EMPTY_HANDLE(isolate, result); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 1673 | |
| 1674 | Handle<Object> new_value( |
machenbach@chromium.org | c1789ee | 2013-07-05 07:09:57 +0000 | [diff] [blame] | 1675 | GetPrototypeSkipHiddenPrototypes(isolate, *obj), isolate); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 1676 | if (!new_value->SameValue(*old_value)) { |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 1677 | JSObject::EnqueueChangeRecord(obj, "setPrototype", |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 1678 | isolate->factory()->proto_string(), |
| 1679 | old_value); |
| 1680 | } |
machenbach@chromium.org | c1789ee | 2013-07-05 07:09:57 +0000 | [diff] [blame] | 1681 | return *result; |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 1682 | } |
machenbach@chromium.org | c1789ee | 2013-07-05 07:09:57 +0000 | [diff] [blame] | 1683 | Handle<Object> result = JSObject::SetPrototype(obj, prototype, true); |
mstarzinger@chromium.org | e0e1b0d | 2013-07-08 08:38:06 +0000 | [diff] [blame] | 1684 | RETURN_IF_EMPTY_HANDLE(isolate, result); |
machenbach@chromium.org | c1789ee | 2013-07-05 07:09:57 +0000 | [diff] [blame] | 1685 | return *result; |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1686 | } |
| 1687 | |
| 1688 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 1689 | RUNTIME_FUNCTION(MaybeObject*, Runtime_IsInPrototypeChain) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 1690 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1691 | ASSERT(args.length() == 2); |
| 1692 | // See ECMA-262, section 15.3.5.3, page 88 (steps 5 - 8). |
| 1693 | Object* O = args[0]; |
| 1694 | Object* V = args[1]; |
| 1695 | while (true) { |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1696 | Object* prototype = V->GetPrototype(isolate); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1697 | if (prototype->IsNull()) return isolate->heap()->false_value(); |
| 1698 | if (O == prototype) return isolate->heap()->true_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1699 | V = prototype; |
| 1700 | } |
| 1701 | } |
| 1702 | |
| 1703 | |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1704 | static bool CheckAccessException(Object* callback, |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 1705 | v8::AccessType access_type) { |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1706 | DisallowHeapAllocation no_gc; |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1707 | if (callback->IsAccessorInfo()) { |
| 1708 | AccessorInfo* info = AccessorInfo::cast(callback); |
| 1709 | return |
| 1710 | (access_type == v8::ACCESS_HAS && |
| 1711 | (info->all_can_read() || info->all_can_write())) || |
| 1712 | (access_type == v8::ACCESS_GET && info->all_can_read()) || |
| 1713 | (access_type == v8::ACCESS_SET && info->all_can_write()); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 1714 | } |
jkummerow@chromium.org | 1e8da74 | 2013-08-26 17:13:35 +0000 | [diff] [blame] | 1715 | if (callback->IsAccessorPair()) { |
| 1716 | AccessorPair* info = AccessorPair::cast(callback); |
| 1717 | return |
| 1718 | (access_type == v8::ACCESS_HAS && |
| 1719 | (info->all_can_read() || info->all_can_write())) || |
| 1720 | (access_type == v8::ACCESS_GET && info->all_can_read()) || |
| 1721 | (access_type == v8::ACCESS_SET && info->all_can_write()); |
| 1722 | } |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 1723 | return false; |
| 1724 | } |
| 1725 | |
| 1726 | |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1727 | template<class Key> |
| 1728 | static bool CheckGenericAccess( |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1729 | Handle<JSObject> receiver, |
| 1730 | Handle<JSObject> holder, |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1731 | Key key, |
| 1732 | v8::AccessType access_type, |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1733 | bool (Isolate::*mayAccess)(Handle<JSObject>, Key, v8::AccessType)) { |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1734 | Isolate* isolate = receiver->GetIsolate(); |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1735 | for (Handle<JSObject> current = receiver; |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1736 | true; |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1737 | current = handle(JSObject::cast(current->GetPrototype()), isolate)) { |
mstarzinger@chromium.org | f4f9499 | 2012-11-19 15:39:24 +0000 | [diff] [blame] | 1738 | if (current->IsAccessCheckNeeded() && |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1739 | !(isolate->*mayAccess)(current, key, access_type)) { |
| 1740 | return false; |
mstarzinger@chromium.org | f4f9499 | 2012-11-19 15:39:24 +0000 | [diff] [blame] | 1741 | } |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1742 | if (current.is_identical_to(holder)) break; |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1743 | } |
| 1744 | return true; |
| 1745 | } |
mstarzinger@chromium.org | f4f9499 | 2012-11-19 15:39:24 +0000 | [diff] [blame] | 1746 | |
mstarzinger@chromium.org | f4f9499 | 2012-11-19 15:39:24 +0000 | [diff] [blame] | 1747 | |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1748 | enum AccessCheckResult { |
| 1749 | ACCESS_FORBIDDEN, |
| 1750 | ACCESS_ALLOWED, |
| 1751 | ACCESS_ABSENT |
| 1752 | }; |
| 1753 | |
| 1754 | |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1755 | static AccessCheckResult CheckPropertyAccess(Handle<JSObject> obj, |
| 1756 | Handle<Name> name, |
| 1757 | v8::AccessType access_type) { |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1758 | uint32_t index; |
| 1759 | if (name->AsArrayIndex(&index)) { |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 1760 | // TODO(1095): we should traverse hidden prototype hierachy as well. |
| 1761 | if (CheckGenericAccess( |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1762 | obj, obj, index, access_type, &Isolate::MayIndexedAccessWrapper)) { |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 1763 | return ACCESS_ALLOWED; |
| 1764 | } |
| 1765 | |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1766 | obj->GetIsolate()->ReportFailedAccessCheck(*obj, access_type); |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 1767 | return ACCESS_FORBIDDEN; |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1768 | } |
| 1769 | |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1770 | Isolate* isolate = obj->GetIsolate(); |
| 1771 | LookupResult lookup(isolate); |
| 1772 | obj->LocalLookup(*name, &lookup, true); |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1773 | |
| 1774 | if (!lookup.IsProperty()) return ACCESS_ABSENT; |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1775 | Handle<JSObject> holder(lookup.holder(), isolate); |
| 1776 | if (CheckGenericAccess<Handle<Object> >( |
| 1777 | obj, holder, name, access_type, &Isolate::MayNamedAccessWrapper)) { |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1778 | return ACCESS_ALLOWED; |
| 1779 | } |
| 1780 | |
| 1781 | // Access check callback denied the access, but some properties |
| 1782 | // can have a special permissions which override callbacks descision |
| 1783 | // (currently see v8::AccessControl). |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 1784 | // API callbacks can have per callback access exceptions. |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1785 | switch (lookup.type()) { |
| 1786 | case CALLBACKS: |
| 1787 | if (CheckAccessException(lookup.GetCallbackObject(), access_type)) { |
| 1788 | return ACCESS_ALLOWED; |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 1789 | } |
| 1790 | break; |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1791 | case INTERCEPTOR: |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 1792 | // If the object has an interceptor, try real named properties. |
| 1793 | // Overwrite the result to fetch the correct property later. |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1794 | holder->LookupRealNamedProperty(*name, &lookup); |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1795 | if (lookup.IsProperty() && lookup.IsPropertyCallbacks()) { |
| 1796 | if (CheckAccessException(lookup.GetCallbackObject(), access_type)) { |
| 1797 | return ACCESS_ALLOWED; |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 1798 | } |
| 1799 | } |
| 1800 | break; |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 1801 | default: |
| 1802 | break; |
| 1803 | } |
| 1804 | |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1805 | isolate->ReportFailedAccessCheck(*obj, access_type); |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1806 | return ACCESS_FORBIDDEN; |
mstarzinger@chromium.org | f4f9499 | 2012-11-19 15:39:24 +0000 | [diff] [blame] | 1807 | } |
| 1808 | |
| 1809 | |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 1810 | // Enumerator used as indices into the array returned from GetOwnProperty |
| 1811 | enum PropertyDescriptorIndices { |
| 1812 | IS_ACCESSOR_INDEX, |
| 1813 | VALUE_INDEX, |
| 1814 | GETTER_INDEX, |
| 1815 | SETTER_INDEX, |
| 1816 | WRITABLE_INDEX, |
| 1817 | ENUMERABLE_INDEX, |
| 1818 | CONFIGURABLE_INDEX, |
| 1819 | DESCRIPTOR_SIZE |
| 1820 | }; |
| 1821 | |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 1822 | |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1823 | static Handle<Object> GetOwnProperty(Isolate* isolate, |
| 1824 | Handle<JSObject> obj, |
| 1825 | Handle<Name> name) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1826 | Heap* heap = isolate->heap(); |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1827 | Factory* factory = isolate->factory(); |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1828 | // Due to some WebKit tests, we want to make sure that we do not log |
| 1829 | // more than one access failure here. |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 1830 | AccessCheckResult access_check_result = |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1831 | CheckPropertyAccess(obj, name, v8::ACCESS_HAS); |
| 1832 | RETURN_HANDLE_IF_SCHEDULED_EXCEPTION(isolate, Object); |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 1833 | switch (access_check_result) { |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1834 | case ACCESS_FORBIDDEN: return factory->false_value(); |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1835 | case ACCESS_ALLOWED: break; |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1836 | case ACCESS_ABSENT: return factory->undefined_value(); |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1837 | } |
| 1838 | |
| 1839 | PropertyAttributes attrs = obj->GetLocalPropertyAttribute(*name); |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 1840 | if (attrs == ABSENT) { |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1841 | RETURN_HANDLE_IF_SCHEDULED_EXCEPTION(isolate, Object); |
| 1842 | return factory->undefined_value(); |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 1843 | } |
| 1844 | ASSERT(!isolate->has_scheduled_exception()); |
yangguo@chromium.org | 46a2a51 | 2013-01-18 16:29:40 +0000 | [diff] [blame] | 1845 | AccessorPair* raw_accessors = obj->GetLocalPropertyAccessorPair(*name); |
| 1846 | Handle<AccessorPair> accessors(raw_accessors, isolate); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1847 | Handle<FixedArray> elms = isolate->factory()->NewFixedArray(DESCRIPTOR_SIZE); |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1848 | elms->set(ENUMERABLE_INDEX, heap->ToBoolean((attrs & DONT_ENUM) == 0)); |
| 1849 | elms->set(CONFIGURABLE_INDEX, heap->ToBoolean((attrs & DONT_DELETE) == 0)); |
yangguo@chromium.org | 46a2a51 | 2013-01-18 16:29:40 +0000 | [diff] [blame] | 1850 | elms->set(IS_ACCESSOR_INDEX, heap->ToBoolean(raw_accessors != NULL)); |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 1851 | |
yangguo@chromium.org | 46a2a51 | 2013-01-18 16:29:40 +0000 | [diff] [blame] | 1852 | if (raw_accessors == NULL) { |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1853 | elms->set(WRITABLE_INDEX, heap->ToBoolean((attrs & READ_ONLY) == 0)); |
| 1854 | // GetProperty does access check. |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 1855 | Handle<Object> value = GetProperty(isolate, obj, name); |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1856 | RETURN_IF_EMPTY_HANDLE_VALUE(isolate, value, Handle<Object>::null()); |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1857 | elms->set(VALUE_INDEX, *value); |
| 1858 | } else { |
| 1859 | // Access checks are performed for both accessors separately. |
| 1860 | // When they fail, the respective field is not set in the descriptor. |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1861 | Handle<Object> getter(accessors->GetComponent(ACCESSOR_GETTER), isolate); |
| 1862 | Handle<Object> setter(accessors->GetComponent(ACCESSOR_SETTER), isolate); |
| 1863 | |
| 1864 | if (!getter->IsMap() && CheckPropertyAccess(obj, name, v8::ACCESS_GET)) { |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 1865 | ASSERT(!isolate->has_scheduled_exception()); |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1866 | elms->set(GETTER_INDEX, *getter); |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 1867 | } else { |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1868 | RETURN_HANDLE_IF_SCHEDULED_EXCEPTION(isolate, Object); |
mstarzinger@chromium.org | f4f9499 | 2012-11-19 15:39:24 +0000 | [diff] [blame] | 1869 | } |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1870 | |
| 1871 | if (!setter->IsMap() && CheckPropertyAccess(obj, name, v8::ACCESS_SET)) { |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 1872 | ASSERT(!isolate->has_scheduled_exception()); |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1873 | elms->set(SETTER_INDEX, *setter); |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 1874 | } else { |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1875 | RETURN_HANDLE_IF_SCHEDULED_EXCEPTION(isolate, Object); |
mstarzinger@chromium.org | f4f9499 | 2012-11-19 15:39:24 +0000 | [diff] [blame] | 1876 | } |
mstarzinger@chromium.org | f4f9499 | 2012-11-19 15:39:24 +0000 | [diff] [blame] | 1877 | } |
| 1878 | |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1879 | return isolate->factory()->NewJSArrayWithElements(elms); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 1880 | } |
| 1881 | |
| 1882 | |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 1883 | // Returns an array with the property description: |
| 1884 | // if args[1] is not a property on args[0] |
| 1885 | // returns undefined |
| 1886 | // if args[1] is a data property on args[0] |
| 1887 | // [false, value, Writeable, Enumerable, Configurable] |
| 1888 | // if args[1] is an accessor on args[0] |
| 1889 | // [true, GetFunction, SetFunction, Enumerable, Configurable] |
| 1890 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetOwnProperty) { |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 1891 | HandleScope scope(isolate); |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 1892 | ASSERT(args.length() == 2); |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 1893 | CONVERT_ARG_HANDLE_CHECKED(JSObject, obj, 0); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1894 | CONVERT_ARG_HANDLE_CHECKED(Name, name, 1); |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 1895 | Handle<Object> result = GetOwnProperty(isolate, obj, name); |
| 1896 | RETURN_IF_EMPTY_HANDLE(isolate, result); |
| 1897 | return *result; |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 1898 | } |
| 1899 | |
| 1900 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 1901 | RUNTIME_FUNCTION(MaybeObject*, Runtime_PreventExtensions) { |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 1902 | HandleScope scope(isolate); |
kmillikin@chromium.org | 69ea396 | 2010-07-05 11:01:40 +0000 | [diff] [blame] | 1903 | ASSERT(args.length() == 1); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 1904 | CONVERT_ARG_HANDLE_CHECKED(JSObject, obj, 0); |
| 1905 | Handle<Object> result = JSObject::PreventExtensions(obj); |
| 1906 | RETURN_IF_EMPTY_HANDLE(isolate, result); |
| 1907 | return *result; |
kmillikin@chromium.org | 69ea396 | 2010-07-05 11:01:40 +0000 | [diff] [blame] | 1908 | } |
| 1909 | |
erik.corry@gmail.com | d91075f | 2011-02-10 07:45:38 +0000 | [diff] [blame] | 1910 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 1911 | RUNTIME_FUNCTION(MaybeObject*, Runtime_IsExtensible) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 1912 | SealHandleScope shs(isolate); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1913 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 1914 | CONVERT_ARG_CHECKED(JSObject, obj, 0); |
erik.corry@gmail.com | d91075f | 2011-02-10 07:45:38 +0000 | [diff] [blame] | 1915 | if (obj->IsJSGlobalProxy()) { |
| 1916 | Object* proto = obj->GetPrototype(); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1917 | if (proto->IsNull()) return isolate->heap()->false_value(); |
erik.corry@gmail.com | d91075f | 2011-02-10 07:45:38 +0000 | [diff] [blame] | 1918 | ASSERT(proto->IsJSGlobalObject()); |
| 1919 | obj = JSObject::cast(proto); |
| 1920 | } |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 1921 | return isolate->heap()->ToBoolean(obj->map()->is_extensible()); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1922 | } |
| 1923 | |
| 1924 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 1925 | RUNTIME_FUNCTION(MaybeObject*, Runtime_RegExpCompile) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1926 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1927 | ASSERT(args.length() == 3); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 1928 | CONVERT_ARG_HANDLE_CHECKED(JSRegExp, re, 0); |
| 1929 | CONVERT_ARG_HANDLE_CHECKED(String, pattern, 1); |
| 1930 | CONVERT_ARG_HANDLE_CHECKED(String, flags, 2); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 1931 | Handle<Object> result = RegExpImpl::Compile(re, pattern, flags); |
mstarzinger@chromium.org | e0e1b0d | 2013-07-08 08:38:06 +0000 | [diff] [blame] | 1932 | RETURN_IF_EMPTY_HANDLE(isolate, result); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1933 | return *result; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1934 | } |
| 1935 | |
| 1936 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 1937 | RUNTIME_FUNCTION(MaybeObject*, Runtime_CreateApiFunction) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1938 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1939 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 1940 | CONVERT_ARG_HANDLE_CHECKED(FunctionTemplateInfo, data, 0); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1941 | return *isolate->factory()->CreateApiFunction(data); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1942 | } |
| 1943 | |
| 1944 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 1945 | RUNTIME_FUNCTION(MaybeObject*, Runtime_IsTemplate) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 1946 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1947 | ASSERT(args.length() == 1); |
| 1948 | Object* arg = args[0]; |
mads.s.ager@gmail.com | 9a4089a | 2008-09-01 08:55:01 +0000 | [diff] [blame] | 1949 | bool result = arg->IsObjectTemplateInfo() || arg->IsFunctionTemplateInfo(); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1950 | return isolate->heap()->ToBoolean(result); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1951 | } |
| 1952 | |
| 1953 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 1954 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetTemplateField) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 1955 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1956 | ASSERT(args.length() == 2); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 1957 | CONVERT_ARG_CHECKED(HeapObject, templ, 0); |
| 1958 | CONVERT_SMI_ARG_CHECKED(index, 1) |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 1959 | int offset = index * kPointerSize + HeapObject::kHeaderSize; |
| 1960 | InstanceType type = templ->map()->instance_type(); |
| 1961 | RUNTIME_ASSERT(type == FUNCTION_TEMPLATE_INFO_TYPE || |
| 1962 | type == OBJECT_TEMPLATE_INFO_TYPE); |
| 1963 | RUNTIME_ASSERT(offset > 0); |
christian.plesner.hansen@gmail.com | 9d58c2b | 2009-10-16 11:48:38 +0000 | [diff] [blame] | 1964 | if (type == FUNCTION_TEMPLATE_INFO_TYPE) { |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 1965 | RUNTIME_ASSERT(offset < FunctionTemplateInfo::kSize); |
| 1966 | } else { |
| 1967 | RUNTIME_ASSERT(offset < ObjectTemplateInfo::kSize); |
| 1968 | } |
| 1969 | return *HeapObject::RawField(templ, offset); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1970 | } |
| 1971 | |
| 1972 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 1973 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DisableAccessChecks) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 1974 | SealHandleScope shs(isolate); |
ager@chromium.org | 870a0b6 | 2008-11-04 11:43:05 +0000 | [diff] [blame] | 1975 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 1976 | CONVERT_ARG_CHECKED(HeapObject, object, 0); |
ager@chromium.org | 3291210 | 2009-01-16 10:38:43 +0000 | [diff] [blame] | 1977 | Map* old_map = object->map(); |
| 1978 | bool needs_access_checks = old_map->is_access_check_needed(); |
| 1979 | if (needs_access_checks) { |
| 1980 | // Copy map so it won't interfere constructor's initial map. |
verwaest@chromium.org | 753aee4 | 2012-07-17 16:15:42 +0000 | [diff] [blame] | 1981 | Map* new_map; |
verwaest@chromium.org | de64f72 | 2012-08-16 15:44:54 +0000 | [diff] [blame] | 1982 | MaybeObject* maybe_new_map = old_map->Copy(); |
verwaest@chromium.org | 753aee4 | 2012-07-17 16:15:42 +0000 | [diff] [blame] | 1983 | if (!maybe_new_map->To(&new_map)) return maybe_new_map; |
ager@chromium.org | 3291210 | 2009-01-16 10:38:43 +0000 | [diff] [blame] | 1984 | |
verwaest@chromium.org | 753aee4 | 2012-07-17 16:15:42 +0000 | [diff] [blame] | 1985 | new_map->set_is_access_check_needed(false); |
| 1986 | object->set_map(new_map); |
ager@chromium.org | 3291210 | 2009-01-16 10:38:43 +0000 | [diff] [blame] | 1987 | } |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 1988 | return isolate->heap()->ToBoolean(needs_access_checks); |
ager@chromium.org | 870a0b6 | 2008-11-04 11:43:05 +0000 | [diff] [blame] | 1989 | } |
| 1990 | |
| 1991 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 1992 | RUNTIME_FUNCTION(MaybeObject*, Runtime_EnableAccessChecks) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 1993 | SealHandleScope shs(isolate); |
ager@chromium.org | 870a0b6 | 2008-11-04 11:43:05 +0000 | [diff] [blame] | 1994 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 1995 | CONVERT_ARG_CHECKED(HeapObject, object, 0); |
ager@chromium.org | 3291210 | 2009-01-16 10:38:43 +0000 | [diff] [blame] | 1996 | Map* old_map = object->map(); |
| 1997 | if (!old_map->is_access_check_needed()) { |
| 1998 | // Copy map so it won't interfere constructor's initial map. |
verwaest@chromium.org | 753aee4 | 2012-07-17 16:15:42 +0000 | [diff] [blame] | 1999 | Map* new_map; |
verwaest@chromium.org | de64f72 | 2012-08-16 15:44:54 +0000 | [diff] [blame] | 2000 | MaybeObject* maybe_new_map = old_map->Copy(); |
verwaest@chromium.org | 753aee4 | 2012-07-17 16:15:42 +0000 | [diff] [blame] | 2001 | if (!maybe_new_map->To(&new_map)) return maybe_new_map; |
ager@chromium.org | 3291210 | 2009-01-16 10:38:43 +0000 | [diff] [blame] | 2002 | |
verwaest@chromium.org | 753aee4 | 2012-07-17 16:15:42 +0000 | [diff] [blame] | 2003 | new_map->set_is_access_check_needed(true); |
| 2004 | object->set_map(new_map); |
ager@chromium.org | 3291210 | 2009-01-16 10:38:43 +0000 | [diff] [blame] | 2005 | } |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2006 | return isolate->heap()->undefined_value(); |
ager@chromium.org | 870a0b6 | 2008-11-04 11:43:05 +0000 | [diff] [blame] | 2007 | } |
| 2008 | |
| 2009 | |
jkummerow@chromium.org | 1e8da74 | 2013-08-26 17:13:35 +0000 | [diff] [blame] | 2010 | // Transform getter or setter into something DefineAccessor can handle. |
| 2011 | static Handle<Object> InstantiateAccessorComponent(Isolate* isolate, |
| 2012 | Handle<Object> component) { |
| 2013 | if (component->IsUndefined()) return isolate->factory()->null_value(); |
| 2014 | Handle<FunctionTemplateInfo> info = |
| 2015 | Handle<FunctionTemplateInfo>::cast(component); |
| 2016 | return Utils::OpenHandle(*Utils::ToLocal(info)->GetFunction()); |
| 2017 | } |
| 2018 | |
| 2019 | |
| 2020 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SetAccessorProperty) { |
| 2021 | HandleScope scope(isolate); |
| 2022 | ASSERT(args.length() == 6); |
| 2023 | CONVERT_ARG_HANDLE_CHECKED(JSObject, object, 0); |
| 2024 | CONVERT_ARG_HANDLE_CHECKED(Name, name, 1); |
| 2025 | CONVERT_ARG_HANDLE_CHECKED(Object, getter, 2); |
| 2026 | CONVERT_ARG_HANDLE_CHECKED(Object, setter, 3); |
| 2027 | CONVERT_SMI_ARG_CHECKED(attribute, 4); |
| 2028 | CONVERT_SMI_ARG_CHECKED(access_control, 5); |
| 2029 | JSObject::DefineAccessor(object, |
| 2030 | name, |
| 2031 | InstantiateAccessorComponent(isolate, getter), |
| 2032 | InstantiateAccessorComponent(isolate, setter), |
| 2033 | static_cast<PropertyAttributes>(attribute), |
| 2034 | static_cast<v8::AccessControl>(access_control)); |
| 2035 | return isolate->heap()->undefined_value(); |
| 2036 | } |
| 2037 | |
| 2038 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2039 | static Failure* ThrowRedeclarationError(Isolate* isolate, |
| 2040 | const char* type, |
| 2041 | Handle<String> name) { |
| 2042 | HandleScope scope(isolate); |
| 2043 | Handle<Object> type_handle = |
| 2044 | isolate->factory()->NewStringFromAscii(CStrVector(type)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2045 | Handle<Object> args[2] = { type_handle, name }; |
| 2046 | Handle<Object> error = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2047 | isolate->factory()->NewTypeError("redeclaration", HandleVector(args, 2)); |
| 2048 | return isolate->Throw(*error); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2049 | } |
| 2050 | |
| 2051 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2052 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DeclareGlobals) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2053 | HandleScope scope(isolate); |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 2054 | ASSERT(args.length() == 3); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2055 | Handle<GlobalObject> global = Handle<GlobalObject>( |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 2056 | isolate->context()->global_object()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2057 | |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 2058 | Handle<Context> context = args.at<Context>(0); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 2059 | CONVERT_ARG_HANDLE_CHECKED(FixedArray, pairs, 1); |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 2060 | CONVERT_SMI_ARG_CHECKED(flags, 2); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2061 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2062 | // Traverse the name/value pairs and set the properties. |
| 2063 | int length = pairs->length(); |
| 2064 | for (int i = 0; i < length; i += 2) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2065 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2066 | Handle<String> name(String::cast(pairs->get(i))); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2067 | Handle<Object> value(pairs->get(i + 1), isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2068 | |
| 2069 | // We have to declare a global const property. To capture we only |
| 2070 | // assign to it when evaluating the assignment for "const x = |
| 2071 | // <expr>" the initial value is the hole. |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 2072 | bool is_var = value->IsUndefined(); |
| 2073 | bool is_const = value->IsTheHole(); |
| 2074 | bool is_function = value->IsSharedFunctionInfo(); |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 2075 | ASSERT(is_var + is_const + is_function == 1); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 2076 | |
| 2077 | if (is_var || is_const) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2078 | // Lookup the property in the global object, and don't set the |
| 2079 | // value of the variable if the property is already there. |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 2080 | // Do the lookup locally only, see ES5 erratum. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2081 | LookupResult lookup(isolate); |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 2082 | if (FLAG_es52_globals) { |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 2083 | global->LocalLookup(*name, &lookup, true); |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 2084 | } else { |
mstarzinger@chromium.org | 88d326b | 2012-04-23 12:57:22 +0000 | [diff] [blame] | 2085 | global->Lookup(*name, &lookup); |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 2086 | } |
verwaest@chromium.org | 753aee4 | 2012-07-17 16:15:42 +0000 | [diff] [blame] | 2087 | if (lookup.IsFound()) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2088 | // We found an existing property. Unless it was an interceptor |
| 2089 | // that claims the property is absent, skip this declaration. |
yangguo@chromium.org | de0db00 | 2012-06-22 13:44:28 +0000 | [diff] [blame] | 2090 | if (!lookup.IsInterceptor()) continue; |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2091 | PropertyAttributes attributes = global->GetPropertyAttribute(*name); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 2092 | if (attributes != ABSENT) continue; |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2093 | // Fall-through and introduce the absent property by using |
| 2094 | // SetProperty. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2095 | } |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 2096 | } else if (is_function) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2097 | // Copy the function and update its context. Use it as value. |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 2098 | Handle<SharedFunctionInfo> shared = |
| 2099 | Handle<SharedFunctionInfo>::cast(value); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2100 | Handle<JSFunction> function = |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 2101 | isolate->factory()->NewFunctionFromSharedFunctionInfo( |
| 2102 | shared, context, TENURED); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2103 | value = function; |
| 2104 | } |
| 2105 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2106 | LookupResult lookup(isolate); |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 2107 | global->LocalLookup(*name, &lookup, true); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2108 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 2109 | // Compute the property attributes. According to ECMA-262, |
| 2110 | // the property must be non-configurable except in eval. |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 2111 | int attr = NONE; |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 2112 | bool is_eval = DeclareGlobalsEvalFlag::decode(flags); |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 2113 | if (!is_eval) { |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 2114 | attr |= DONT_DELETE; |
| 2115 | } |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2116 | bool is_native = DeclareGlobalsNativeFlag::decode(flags); |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 2117 | if (is_const || (is_native && is_function)) { |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 2118 | attr |= READ_ONLY; |
| 2119 | } |
| 2120 | |
rossberg@chromium.org | 2c067b1 | 2012-03-19 11:01:52 +0000 | [diff] [blame] | 2121 | LanguageMode language_mode = DeclareGlobalsLanguageMode::decode(flags); |
| 2122 | |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 2123 | if (!lookup.IsFound() || is_function) { |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 2124 | // If the local property exists, check that we can reconfigure it |
| 2125 | // as required for function declarations. |
verwaest@chromium.org | 753aee4 | 2012-07-17 16:15:42 +0000 | [diff] [blame] | 2126 | if (lookup.IsFound() && lookup.IsDontDelete()) { |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 2127 | if (lookup.IsReadOnly() || lookup.IsDontEnum() || |
yangguo@chromium.org | 99aa490 | 2012-07-06 16:21:55 +0000 | [diff] [blame] | 2128 | lookup.IsPropertyCallbacks()) { |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 2129 | return ThrowRedeclarationError(isolate, "function", name); |
rossberg@chromium.org | 2c067b1 | 2012-03-19 11:01:52 +0000 | [diff] [blame] | 2130 | } |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 2131 | // If the existing property is not configurable, keep its attributes. |
| 2132 | attr = lookup.GetAttributes(); |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 2133 | } |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 2134 | // Define or redefine own property. |
| 2135 | RETURN_IF_EMPTY_HANDLE(isolate, |
| 2136 | JSObject::SetLocalPropertyIgnoreAttributes( |
| 2137 | global, name, value, static_cast<PropertyAttributes>(attr))); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2138 | } else { |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 2139 | // Do a [[Put]] on the existing (own) property. |
| 2140 | RETURN_IF_EMPTY_HANDLE(isolate, |
| 2141 | JSObject::SetProperty( |
| 2142 | global, name, value, static_cast<PropertyAttributes>(attr), |
| 2143 | language_mode == CLASSIC_MODE ? kNonStrictMode : kStrictMode)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2144 | } |
| 2145 | } |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 2146 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2147 | ASSERT(!isolate->has_pending_exception()); |
| 2148 | return isolate->heap()->undefined_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2149 | } |
| 2150 | |
| 2151 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2152 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DeclareContextSlot) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2153 | HandleScope scope(isolate); |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 2154 | ASSERT(args.length() == 4); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2155 | |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 2156 | // Declarations are always made in a function or native context. In the |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2157 | // case of eval code, the context passed is the context of the caller, |
| 2158 | // which may be some nested context and not the declaration context. |
| 2159 | RUNTIME_ASSERT(args[0]->IsContext()); |
| 2160 | Handle<Context> context(Context::cast(args[0])->declaration_context()); |
| 2161 | |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 2162 | Handle<String> name(String::cast(args[1])); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 2163 | PropertyAttributes mode = static_cast<PropertyAttributes>(args.smi_at(2)); |
fschneider@chromium.org | c20610a | 2010-09-22 09:44:58 +0000 | [diff] [blame] | 2164 | RUNTIME_ASSERT(mode == READ_ONLY || mode == NONE); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2165 | Handle<Object> initial_value(args[3], isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2166 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2167 | int index; |
| 2168 | PropertyAttributes attributes; |
| 2169 | ContextLookupFlags flags = DONT_FOLLOW_CHAINS; |
yangguo@chromium.org | 80c42ed | 2011-08-31 09:03:56 +0000 | [diff] [blame] | 2170 | BindingFlags binding_flags; |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 2171 | Handle<Object> holder = |
yangguo@chromium.org | 80c42ed | 2011-08-31 09:03:56 +0000 | [diff] [blame] | 2172 | context->Lookup(name, flags, &index, &attributes, &binding_flags); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2173 | |
| 2174 | if (attributes != ABSENT) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2175 | // The name was declared before; check for conflicting re-declarations. |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 2176 | // Note: this is actually inconsistent with what happens for globals (where |
| 2177 | // we silently ignore such declarations). |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2178 | if (((attributes & READ_ONLY) != 0) || (mode == READ_ONLY)) { |
| 2179 | // Functions are not read-only. |
| 2180 | ASSERT(mode != READ_ONLY || initial_value->IsTheHole()); |
| 2181 | const char* type = ((attributes & READ_ONLY) != 0) ? "const" : "var"; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2182 | return ThrowRedeclarationError(isolate, type, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2183 | } |
| 2184 | |
| 2185 | // Initialize it if necessary. |
| 2186 | if (*initial_value != NULL) { |
| 2187 | if (index >= 0) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2188 | ASSERT(holder.is_identical_to(context)); |
| 2189 | if (((attributes & READ_ONLY) == 0) || |
| 2190 | context->get(index)->IsTheHole()) { |
| 2191 | context->set(index, *initial_value); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2192 | } |
| 2193 | } else { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2194 | // Slow case: The property is in the context extension object of a |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 2195 | // function context or the global object of a native context. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2196 | Handle<JSObject> object = Handle<JSObject>::cast(holder); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 2197 | RETURN_IF_EMPTY_HANDLE( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2198 | isolate, |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 2199 | JSReceiver::SetProperty(object, name, initial_value, mode, |
| 2200 | kNonStrictMode)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2201 | } |
| 2202 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2203 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2204 | } else { |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 2205 | // The property is not in the function context. It needs to be |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2206 | // "declared" in the function context's extension context or as a |
| 2207 | // property of the the global object. |
| 2208 | Handle<JSObject> object; |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 2209 | if (context->has_extension()) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2210 | object = Handle<JSObject>(JSObject::cast(context->extension())); |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 2211 | } else { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2212 | // Context extension objects are allocated lazily. |
| 2213 | ASSERT(context->IsFunctionContext()); |
| 2214 | object = isolate->factory()->NewJSObject( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2215 | isolate->context_extension_function()); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2216 | context->set_extension(*object); |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 2217 | } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2218 | ASSERT(*object != NULL); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2219 | |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 2220 | // Declare the property by setting it to the initial value if provided, |
| 2221 | // or undefined, and use the correct mode (e.g. READ_ONLY attribute for |
| 2222 | // constant declarations). |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 2223 | ASSERT(!JSReceiver::HasLocalProperty(object, name)); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2224 | Handle<Object> value(isolate->heap()->undefined_value(), isolate); |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 2225 | if (*initial_value != NULL) value = initial_value; |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 2226 | // Declaring a const context slot is a conflicting declaration if |
| 2227 | // there is a callback with that name in a prototype. It is |
| 2228 | // allowed to introduce const variables in |
| 2229 | // JSContextExtensionObjects. They are treated specially in |
| 2230 | // SetProperty and no setters are invoked for those since they are |
| 2231 | // not real JSObjects. |
| 2232 | if (initial_value->IsTheHole() && |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2233 | !object->IsJSContextExtensionObject()) { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2234 | LookupResult lookup(isolate); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2235 | object->Lookup(*name, &lookup); |
verwaest@chromium.org | 753aee4 | 2012-07-17 16:15:42 +0000 | [diff] [blame] | 2236 | if (lookup.IsPropertyCallbacks()) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2237 | return ThrowRedeclarationError(isolate, "const", name); |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 2238 | } |
| 2239 | } |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 2240 | if (object->IsJSGlobalObject()) { |
| 2241 | // Define own property on the global object. |
| 2242 | RETURN_IF_EMPTY_HANDLE(isolate, |
| 2243 | JSObject::SetLocalPropertyIgnoreAttributes(object, name, value, mode)); |
| 2244 | } else { |
| 2245 | RETURN_IF_EMPTY_HANDLE(isolate, |
| 2246 | JSReceiver::SetProperty(object, name, value, mode, kNonStrictMode)); |
| 2247 | } |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 2248 | } |
| 2249 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2250 | return isolate->heap()->undefined_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2251 | } |
| 2252 | |
| 2253 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2254 | RUNTIME_FUNCTION(MaybeObject*, Runtime_InitializeVarGlobal) { |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 2255 | HandleScope scope(isolate); |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 2256 | // args[0] == name |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 2257 | // args[1] == language_mode |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 2258 | // args[2] == value (optional) |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2259 | |
| 2260 | // Determine if we need to assign to the variable if it already |
| 2261 | // exists (based on the number of arguments). |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 2262 | RUNTIME_ASSERT(args.length() == 2 || args.length() == 3); |
| 2263 | bool assign = args.length() == 3; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2264 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 2265 | CONVERT_ARG_HANDLE_CHECKED(String, name, 0); |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 2266 | RUNTIME_ASSERT(args[1]->IsSmi()); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 2267 | CONVERT_LANGUAGE_MODE_ARG(language_mode, 1); |
| 2268 | StrictModeFlag strict_mode_flag = (language_mode == CLASSIC_MODE) |
| 2269 | ? kNonStrictMode : kStrictMode; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2270 | |
| 2271 | // According to ECMA-262, section 12.2, page 62, the property must |
| 2272 | // not be deletable. |
| 2273 | PropertyAttributes attributes = DONT_DELETE; |
| 2274 | |
| 2275 | // Lookup the property locally in the global object. If it isn't |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 2276 | // there, there is a property with this name in the prototype chain. |
| 2277 | // We follow Safari and Firefox behavior and only set the property |
| 2278 | // locally if there is an explicit initialization value that we have |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 2279 | // to assign to the property. |
sgjesse@chromium.org | ac6aa17 | 2009-12-04 12:29:05 +0000 | [diff] [blame] | 2280 | // Note that objects can have hidden prototypes, so we need to traverse |
| 2281 | // the whole chain of hidden prototypes to do a 'local' lookup. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2282 | LookupResult lookup(isolate); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 2283 | isolate->context()->global_object()->LocalLookup(*name, &lookup, true); |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 2284 | if (lookup.IsInterceptor()) { |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 2285 | PropertyAttributes intercepted = |
| 2286 | lookup.holder()->GetPropertyAttribute(*name); |
| 2287 | if (intercepted != ABSENT && (intercepted & READ_ONLY) == 0) { |
| 2288 | // Found an interceptor that's not read only. |
| 2289 | if (assign) { |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 2290 | CONVERT_ARG_HANDLE_CHECKED(Object, value, 2); |
| 2291 | Handle<Object> result = JSObject::SetPropertyForResult( |
| 2292 | handle(lookup.holder()), &lookup, name, value, attributes, |
| 2293 | strict_mode_flag); |
| 2294 | RETURN_IF_EMPTY_HANDLE(isolate, result); |
| 2295 | return *result; |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 2296 | } else { |
| 2297 | return isolate->heap()->undefined_value(); |
sgjesse@chromium.org | ac6aa17 | 2009-12-04 12:29:05 +0000 | [diff] [blame] | 2298 | } |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 2299 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2300 | } |
| 2301 | |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 2302 | if (assign) { |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 2303 | CONVERT_ARG_HANDLE_CHECKED(Object, value, 2); |
| 2304 | Handle<GlobalObject> global(isolate->context()->global_object()); |
| 2305 | Handle<Object> result = JSReceiver::SetProperty( |
| 2306 | global, name, value, attributes, strict_mode_flag); |
| 2307 | RETURN_IF_EMPTY_HANDLE(isolate, result); |
| 2308 | return *result; |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 2309 | } |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2310 | return isolate->heap()->undefined_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2311 | } |
| 2312 | |
| 2313 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2314 | RUNTIME_FUNCTION(MaybeObject*, Runtime_InitializeConstGlobal) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 2315 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2316 | // All constants are declared with an initial value. The name |
| 2317 | // of the constant is the first argument and the initial value |
| 2318 | // is the second. |
| 2319 | RUNTIME_ASSERT(args.length() == 2); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 2320 | CONVERT_ARG_HANDLE_CHECKED(String, name, 0); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2321 | Handle<Object> value = args.at<Object>(1); |
| 2322 | |
| 2323 | // Get the current global object from top. |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 2324 | GlobalObject* global = isolate->context()->global_object(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2325 | |
| 2326 | // According to ECMA-262, section 12.2, page 62, the property must |
| 2327 | // not be deletable. Since it's a const, it must be READ_ONLY too. |
| 2328 | PropertyAttributes attributes = |
| 2329 | static_cast<PropertyAttributes>(DONT_DELETE | READ_ONLY); |
| 2330 | |
| 2331 | // Lookup the property locally in the global object. If it isn't |
| 2332 | // there, we add the property and take special precautions to always |
| 2333 | // add it as a local property even in case of callbacks in the |
| 2334 | // prototype chain (this rules out using SetProperty). |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 2335 | // We use SetLocalPropertyIgnoreAttributes instead |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2336 | LookupResult lookup(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2337 | global->LocalLookup(*name, &lookup); |
verwaest@chromium.org | 753aee4 | 2012-07-17 16:15:42 +0000 | [diff] [blame] | 2338 | if (!lookup.IsFound()) { |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 2339 | HandleScope handle_scope(isolate); |
| 2340 | Handle<GlobalObject> global(isolate->context()->global_object()); |
| 2341 | RETURN_IF_EMPTY_HANDLE( |
| 2342 | isolate, |
| 2343 | JSObject::SetLocalPropertyIgnoreAttributes(global, name, value, |
| 2344 | attributes)); |
| 2345 | return *value; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2346 | } |
| 2347 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2348 | if (!lookup.IsReadOnly()) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2349 | // Restore global object from context (in case of GC) and continue |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2350 | // with setting the value. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2351 | HandleScope handle_scope(isolate); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 2352 | Handle<GlobalObject> global(isolate->context()->global_object()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2353 | |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 2354 | // BUG 1213575: Handle the case where we have to set a read-only |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2355 | // property through an interceptor and only do it if it's |
| 2356 | // uninitialized, e.g. the hole. Nirk... |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 2357 | // Passing non-strict mode because the property is writable. |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 2358 | RETURN_IF_EMPTY_HANDLE( |
| 2359 | isolate, |
| 2360 | JSReceiver::SetProperty(global, name, value, attributes, |
| 2361 | kNonStrictMode)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2362 | return *value; |
| 2363 | } |
| 2364 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2365 | // Set the value, but only if we're assigning the initial value to a |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2366 | // constant. For now, we determine this by checking if the |
| 2367 | // current value is the hole. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2368 | // Strict mode handling not needed (const is disallowed in strict mode). |
yangguo@chromium.org | de0db00 | 2012-06-22 13:44:28 +0000 | [diff] [blame] | 2369 | if (lookup.IsField()) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2370 | FixedArray* properties = global->properties(); |
yangguo@chromium.org | eeb44b6 | 2012-11-13 13:56:09 +0000 | [diff] [blame] | 2371 | int index = lookup.GetFieldIndex().field_index(); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2372 | if (properties->get(index)->IsTheHole() || !lookup.IsReadOnly()) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2373 | properties->set(index, *value); |
| 2374 | } |
yangguo@chromium.org | de0db00 | 2012-06-22 13:44:28 +0000 | [diff] [blame] | 2375 | } else if (lookup.IsNormal()) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2376 | if (global->GetNormalizedProperty(&lookup)->IsTheHole() || |
| 2377 | !lookup.IsReadOnly()) { |
mstarzinger@chromium.org | e0e1b0d | 2013-07-08 08:38:06 +0000 | [diff] [blame] | 2378 | HandleScope scope(isolate); |
| 2379 | JSObject::SetNormalizedProperty(Handle<JSObject>(global), &lookup, value); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2380 | } |
| 2381 | } else { |
| 2382 | // Ignore re-initialization of constants that have already been |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 2383 | // assigned a constant value. |
| 2384 | ASSERT(lookup.IsReadOnly() && lookup.IsConstant()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2385 | } |
| 2386 | |
| 2387 | // Use the set value as the result of the operation. |
| 2388 | return *value; |
| 2389 | } |
| 2390 | |
| 2391 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2392 | RUNTIME_FUNCTION(MaybeObject*, Runtime_InitializeConstContextSlot) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2393 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2394 | ASSERT(args.length() == 3); |
| 2395 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2396 | Handle<Object> value(args[0], isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2397 | ASSERT(!value->IsTheHole()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2398 | |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 2399 | // Initializations are always done in a function or native context. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2400 | RUNTIME_ASSERT(args[1]->IsContext()); |
| 2401 | Handle<Context> context(Context::cast(args[1])->declaration_context()); |
| 2402 | |
| 2403 | Handle<String> name(String::cast(args[2])); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2404 | |
| 2405 | int index; |
| 2406 | PropertyAttributes attributes; |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 2407 | ContextLookupFlags flags = FOLLOW_CHAINS; |
yangguo@chromium.org | 80c42ed | 2011-08-31 09:03:56 +0000 | [diff] [blame] | 2408 | BindingFlags binding_flags; |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 2409 | Handle<Object> holder = |
yangguo@chromium.org | 80c42ed | 2011-08-31 09:03:56 +0000 | [diff] [blame] | 2410 | context->Lookup(name, flags, &index, &attributes, &binding_flags); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2411 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2412 | if (index >= 0) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2413 | ASSERT(holder->IsContext()); |
| 2414 | // Property was found in a context. Perform the assignment if we |
| 2415 | // found some non-constant or an uninitialized constant. |
| 2416 | Handle<Context> context = Handle<Context>::cast(holder); |
| 2417 | if ((attributes & READ_ONLY) == 0 || context->get(index)->IsTheHole()) { |
| 2418 | context->set(index, *value); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2419 | } |
| 2420 | return *value; |
| 2421 | } |
| 2422 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2423 | // The property could not be found, we introduce it as a property of the |
| 2424 | // global object. |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 2425 | if (attributes == ABSENT) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2426 | Handle<JSObject> global = Handle<JSObject>( |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 2427 | isolate->context()->global_object()); |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 2428 | // Strict mode not needed (const disallowed in strict mode). |
| 2429 | RETURN_IF_EMPTY_HANDLE( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2430 | isolate, |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 2431 | JSReceiver::SetProperty(global, name, value, NONE, kNonStrictMode)); |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 2432 | return *value; |
| 2433 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2434 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2435 | // The property was present in some function's context extension object, |
| 2436 | // as a property on the subject of a with, or as a property of the global |
| 2437 | // object. |
| 2438 | // |
| 2439 | // In most situations, eval-introduced consts should still be present in |
| 2440 | // the context extension object. However, because declaration and |
| 2441 | // initialization are separate, the property might have been deleted |
| 2442 | // before we reach the initialization point. |
| 2443 | // |
| 2444 | // Example: |
| 2445 | // |
| 2446 | // function f() { eval("delete x; const x;"); } |
| 2447 | // |
| 2448 | // In that case, the initialization behaves like a normal assignment. |
| 2449 | Handle<JSObject> object = Handle<JSObject>::cast(holder); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2450 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2451 | if (*object == context->extension()) { |
| 2452 | // This is the property that was introduced by the const declaration. |
| 2453 | // Set it if it hasn't been set before. NOTE: We cannot use |
| 2454 | // GetProperty() to get the current value as it 'unholes' the value. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2455 | LookupResult lookup(isolate); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2456 | object->LocalLookupRealNamedProperty(*name, &lookup); |
jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 2457 | ASSERT(lookup.IsFound()); // the property was declared |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 2458 | ASSERT(lookup.IsReadOnly()); // and it was declared as read-only |
| 2459 | |
yangguo@chromium.org | de0db00 | 2012-06-22 13:44:28 +0000 | [diff] [blame] | 2460 | if (lookup.IsField()) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2461 | FixedArray* properties = object->properties(); |
yangguo@chromium.org | eeb44b6 | 2012-11-13 13:56:09 +0000 | [diff] [blame] | 2462 | int index = lookup.GetFieldIndex().field_index(); |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 2463 | if (properties->get(index)->IsTheHole()) { |
| 2464 | properties->set(index, *value); |
| 2465 | } |
yangguo@chromium.org | de0db00 | 2012-06-22 13:44:28 +0000 | [diff] [blame] | 2466 | } else if (lookup.IsNormal()) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2467 | if (object->GetNormalizedProperty(&lookup)->IsTheHole()) { |
mstarzinger@chromium.org | e0e1b0d | 2013-07-08 08:38:06 +0000 | [diff] [blame] | 2468 | JSObject::SetNormalizedProperty(object, &lookup, value); |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 2469 | } |
| 2470 | } else { |
| 2471 | // We should not reach here. Any real, named property should be |
| 2472 | // either a field or a dictionary slot. |
| 2473 | UNREACHABLE(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2474 | } |
| 2475 | } else { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2476 | // The property was found on some other object. Set it if it is not a |
| 2477 | // read-only property. |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 2478 | if ((attributes & READ_ONLY) == 0) { |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 2479 | // Strict mode not needed (const disallowed in strict mode). |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 2480 | RETURN_IF_EMPTY_HANDLE( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2481 | isolate, |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 2482 | JSReceiver::SetProperty(object, name, value, attributes, |
| 2483 | kNonStrictMode)); |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 2484 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2485 | } |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 2486 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2487 | return *value; |
| 2488 | } |
| 2489 | |
| 2490 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2491 | RUNTIME_FUNCTION(MaybeObject*, |
| 2492 | Runtime_OptimizeObjectForAddingMultipleProperties) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2493 | HandleScope scope(isolate); |
sgjesse@chromium.org | 911335c | 2009-08-19 12:59:44 +0000 | [diff] [blame] | 2494 | ASSERT(args.length() == 2); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 2495 | CONVERT_ARG_HANDLE_CHECKED(JSObject, object, 0); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 2496 | CONVERT_SMI_ARG_CHECKED(properties, 1); |
sgjesse@chromium.org | 911335c | 2009-08-19 12:59:44 +0000 | [diff] [blame] | 2497 | if (object->HasFastProperties()) { |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 2498 | JSObject::NormalizeProperties(object, KEEP_INOBJECT_PROPERTIES, properties); |
sgjesse@chromium.org | 911335c | 2009-08-19 12:59:44 +0000 | [diff] [blame] | 2499 | } |
| 2500 | return *object; |
| 2501 | } |
| 2502 | |
| 2503 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2504 | RUNTIME_FUNCTION(MaybeObject*, Runtime_RegExpExec) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2505 | HandleScope scope(isolate); |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 2506 | ASSERT(args.length() == 4); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 2507 | CONVERT_ARG_HANDLE_CHECKED(JSRegExp, regexp, 0); |
| 2508 | CONVERT_ARG_HANDLE_CHECKED(String, subject, 1); |
kasperl@chromium.org | 68ac009 | 2009-07-09 06:00:35 +0000 | [diff] [blame] | 2509 | // Due to the way the JS calls are constructed this must be less than the |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 2510 | // length of a string, i.e. it is always a Smi. We check anyway for security. |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 2511 | CONVERT_SMI_ARG_CHECKED(index, 2); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 2512 | CONVERT_ARG_HANDLE_CHECKED(JSArray, last_match_info, 3); |
kasperl@chromium.org | 68ac009 | 2009-07-09 06:00:35 +0000 | [diff] [blame] | 2513 | RUNTIME_ASSERT(index >= 0); |
| 2514 | RUNTIME_ASSERT(index <= subject->length()); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2515 | isolate->counters()->regexp_entry_runtime()->Increment(); |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 2516 | Handle<Object> result = RegExpImpl::Exec(regexp, |
| 2517 | subject, |
kasperl@chromium.org | 68ac009 | 2009-07-09 06:00:35 +0000 | [diff] [blame] | 2518 | index, |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 2519 | last_match_info); |
mstarzinger@chromium.org | e0e1b0d | 2013-07-08 08:38:06 +0000 | [diff] [blame] | 2520 | RETURN_IF_EMPTY_HANDLE(isolate, result); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 2521 | return *result; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2522 | } |
| 2523 | |
| 2524 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2525 | RUNTIME_FUNCTION(MaybeObject*, Runtime_RegExpConstructResult) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 2526 | SealHandleScope shs(isolate); |
whesse@chromium.org | b6e43bb | 2010-04-14 09:36:28 +0000 | [diff] [blame] | 2527 | ASSERT(args.length() == 3); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 2528 | CONVERT_SMI_ARG_CHECKED(elements_count, 0); |
ricow@chromium.org | 2c99e28 | 2011-07-28 09:15:17 +0000 | [diff] [blame] | 2529 | if (elements_count < 0 || |
| 2530 | elements_count > FixedArray::kMaxLength || |
| 2531 | !Smi::IsValid(elements_count)) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2532 | return isolate->ThrowIllegalOperation(); |
whesse@chromium.org | b6e43bb | 2010-04-14 09:36:28 +0000 | [diff] [blame] | 2533 | } |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 2534 | Object* new_object; |
| 2535 | { MaybeObject* maybe_new_object = |
jkummerow@chromium.org | 2c9426b | 2013-09-05 16:31:13 +0000 | [diff] [blame] | 2536 | isolate->heap()->AllocateFixedArray(elements_count); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 2537 | if (!maybe_new_object->ToObject(&new_object)) return maybe_new_object; |
| 2538 | } |
whesse@chromium.org | b6e43bb | 2010-04-14 09:36:28 +0000 | [diff] [blame] | 2539 | FixedArray* elements = FixedArray::cast(new_object); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2540 | { MaybeObject* maybe_new_object = isolate->heap()->AllocateRaw( |
| 2541 | JSRegExpResult::kSize, NEW_SPACE, OLD_POINTER_SPACE); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 2542 | if (!maybe_new_object->ToObject(&new_object)) return maybe_new_object; |
| 2543 | } |
whesse@chromium.org | b6e43bb | 2010-04-14 09:36:28 +0000 | [diff] [blame] | 2544 | { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 2545 | DisallowHeapAllocation no_gc; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2546 | HandleScope scope(isolate); |
whesse@chromium.org | b6e43bb | 2010-04-14 09:36:28 +0000 | [diff] [blame] | 2547 | reinterpret_cast<HeapObject*>(new_object)-> |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 2548 | set_map(isolate->native_context()->regexp_result_map()); |
whesse@chromium.org | b6e43bb | 2010-04-14 09:36:28 +0000 | [diff] [blame] | 2549 | } |
| 2550 | JSArray* array = JSArray::cast(new_object); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2551 | array->set_properties(isolate->heap()->empty_fixed_array()); |
whesse@chromium.org | b6e43bb | 2010-04-14 09:36:28 +0000 | [diff] [blame] | 2552 | array->set_elements(elements); |
| 2553 | array->set_length(Smi::FromInt(elements_count)); |
| 2554 | // Write in-object properties after the length of the array. |
| 2555 | array->InObjectPropertyAtPut(JSRegExpResult::kIndexIndex, args[1]); |
| 2556 | array->InObjectPropertyAtPut(JSRegExpResult::kInputIndex, args[2]); |
| 2557 | return array; |
| 2558 | } |
| 2559 | |
| 2560 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2561 | RUNTIME_FUNCTION(MaybeObject*, Runtime_RegExpInitializeObject) { |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 2562 | HandleScope scope(isolate); |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 2563 | DisallowHeapAllocation no_allocation; |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 2564 | ASSERT(args.length() == 5); |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 2565 | CONVERT_ARG_HANDLE_CHECKED(JSRegExp, regexp, 0); |
| 2566 | CONVERT_ARG_HANDLE_CHECKED(String, source, 1); |
yangguo@chromium.org | efdb9d7 | 2012-04-26 08:21:05 +0000 | [diff] [blame] | 2567 | // If source is the empty string we set it to "(?:)" instead as |
| 2568 | // suggested by ECMA-262, 5th, section 15.10.4.1. |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 2569 | if (source->length() == 0) source = isolate->factory()->query_colon_string(); |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 2570 | |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 2571 | CONVERT_ARG_HANDLE_CHECKED(Object, global, 2); |
| 2572 | if (!global->IsTrue()) global = isolate->factory()->false_value(); |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 2573 | |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 2574 | CONVERT_ARG_HANDLE_CHECKED(Object, ignoreCase, 3); |
| 2575 | if (!ignoreCase->IsTrue()) ignoreCase = isolate->factory()->false_value(); |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 2576 | |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 2577 | CONVERT_ARG_HANDLE_CHECKED(Object, multiline, 4); |
| 2578 | if (!multiline->IsTrue()) multiline = isolate->factory()->false_value(); |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 2579 | |
| 2580 | Map* map = regexp->map(); |
| 2581 | Object* constructor = map->constructor(); |
| 2582 | if (constructor->IsJSFunction() && |
| 2583 | JSFunction::cast(constructor)->initial_map() == map) { |
| 2584 | // If we still have the original map, set in-object properties directly. |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 2585 | regexp->InObjectPropertyAtPut(JSRegExp::kSourceFieldIndex, *source); |
erikcorry | 0ad885c | 2011-11-21 13:51:57 +0000 | [diff] [blame] | 2586 | // Both true and false are immovable immortal objects so no need for write |
| 2587 | // barrier. |
| 2588 | regexp->InObjectPropertyAtPut( |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 2589 | JSRegExp::kGlobalFieldIndex, *global, SKIP_WRITE_BARRIER); |
erikcorry | 0ad885c | 2011-11-21 13:51:57 +0000 | [diff] [blame] | 2590 | regexp->InObjectPropertyAtPut( |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 2591 | JSRegExp::kIgnoreCaseFieldIndex, *ignoreCase, SKIP_WRITE_BARRIER); |
erikcorry | 0ad885c | 2011-11-21 13:51:57 +0000 | [diff] [blame] | 2592 | regexp->InObjectPropertyAtPut( |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 2593 | JSRegExp::kMultilineFieldIndex, *multiline, SKIP_WRITE_BARRIER); |
mvstanton@chromium.org | 6bec009 | 2013-01-23 13:46:53 +0000 | [diff] [blame] | 2594 | regexp->InObjectPropertyAtPut( |
| 2595 | JSRegExp::kLastIndexFieldIndex, Smi::FromInt(0), SKIP_WRITE_BARRIER); |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 2596 | return *regexp; |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 2597 | } |
| 2598 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2599 | // Map has changed, so use generic, but slower, method. |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 2600 | PropertyAttributes final = |
| 2601 | static_cast<PropertyAttributes>(READ_ONLY | DONT_ENUM | DONT_DELETE); |
| 2602 | PropertyAttributes writable = |
| 2603 | static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE); |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 2604 | Handle<Object> zero(Smi::FromInt(0), isolate); |
| 2605 | Factory* factory = isolate->factory(); |
| 2606 | CHECK_NOT_EMPTY_HANDLE(isolate, JSObject::SetLocalPropertyIgnoreAttributes( |
| 2607 | regexp, factory->source_string(), source, final)); |
| 2608 | CHECK_NOT_EMPTY_HANDLE(isolate, JSObject::SetLocalPropertyIgnoreAttributes( |
| 2609 | regexp, factory->global_string(), global, final)); |
| 2610 | CHECK_NOT_EMPTY_HANDLE(isolate, JSObject::SetLocalPropertyIgnoreAttributes( |
| 2611 | regexp, factory->ignore_case_string(), ignoreCase, final)); |
| 2612 | CHECK_NOT_EMPTY_HANDLE(isolate, JSObject::SetLocalPropertyIgnoreAttributes( |
| 2613 | regexp, factory->multiline_string(), multiline, final)); |
| 2614 | CHECK_NOT_EMPTY_HANDLE(isolate, JSObject::SetLocalPropertyIgnoreAttributes( |
| 2615 | regexp, factory->last_index_string(), zero, writable)); |
| 2616 | return *regexp; |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 2617 | } |
| 2618 | |
| 2619 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2620 | RUNTIME_FUNCTION(MaybeObject*, Runtime_FinishArrayPrototypeSetup) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2621 | HandleScope scope(isolate); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 2622 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 2623 | CONVERT_ARG_HANDLE_CHECKED(JSArray, prototype, 0); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 2624 | // This is necessary to enable fast checks for absence of elements |
| 2625 | // on Array.prototype and below. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2626 | prototype->set_elements(isolate->heap()->empty_fixed_array()); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 2627 | return Smi::FromInt(0); |
| 2628 | } |
| 2629 | |
| 2630 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2631 | static Handle<JSFunction> InstallBuiltin(Isolate* isolate, |
| 2632 | Handle<JSObject> holder, |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 2633 | const char* name, |
sgjesse@chromium.org | 720dc0b | 2010-05-10 09:25:39 +0000 | [diff] [blame] | 2634 | Builtins::Name builtin_name) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 2635 | Handle<String> key = isolate->factory()->InternalizeUtf8String(name); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2636 | Handle<Code> code(isolate->builtins()->builtin(builtin_name)); |
| 2637 | Handle<JSFunction> optimized = |
| 2638 | isolate->factory()->NewFunction(key, |
| 2639 | JS_OBJECT_TYPE, |
| 2640 | JSObject::kHeaderSize, |
| 2641 | code, |
| 2642 | false); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 2643 | optimized->shared()->DontAdaptArguments(); |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 2644 | JSReceiver::SetProperty(holder, key, optimized, NONE, kStrictMode); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 2645 | return optimized; |
| 2646 | } |
| 2647 | |
| 2648 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2649 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SpecialArrayFunctions) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2650 | HandleScope scope(isolate); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 2651 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 2652 | CONVERT_ARG_HANDLE_CHECKED(JSObject, holder, 0); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 2653 | |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2654 | InstallBuiltin(isolate, holder, "pop", Builtins::kArrayPop); |
| 2655 | InstallBuiltin(isolate, holder, "push", Builtins::kArrayPush); |
| 2656 | InstallBuiltin(isolate, holder, "shift", Builtins::kArrayShift); |
| 2657 | InstallBuiltin(isolate, holder, "unshift", Builtins::kArrayUnshift); |
| 2658 | InstallBuiltin(isolate, holder, "slice", Builtins::kArraySlice); |
| 2659 | InstallBuiltin(isolate, holder, "splice", Builtins::kArraySplice); |
| 2660 | InstallBuiltin(isolate, holder, "concat", Builtins::kArrayConcat); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 2661 | |
| 2662 | return *holder; |
| 2663 | } |
| 2664 | |
| 2665 | |
machenbach@chromium.org | 9f18d91 | 2013-11-28 13:42:41 +0000 | [diff] [blame] | 2666 | RUNTIME_FUNCTION(MaybeObject*, Runtime_IsCallable) { |
| 2667 | SealHandleScope shs(isolate); |
| 2668 | ASSERT(args.length() == 1); |
| 2669 | CONVERT_ARG_CHECKED(Object, obj, 0); |
| 2670 | return isolate->heap()->ToBoolean(obj->IsCallable()); |
| 2671 | } |
| 2672 | |
| 2673 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 2674 | RUNTIME_FUNCTION(MaybeObject*, Runtime_IsClassicModeFunction) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 2675 | SealHandleScope shs(isolate); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 2676 | ASSERT(args.length() == 1); |
| 2677 | CONVERT_ARG_CHECKED(JSReceiver, callable, 0); |
| 2678 | if (!callable->IsJSFunction()) { |
| 2679 | HandleScope scope(isolate); |
| 2680 | bool threw = false; |
mstarzinger@chromium.org | e900018 | 2013-09-03 11:25:39 +0000 | [diff] [blame] | 2681 | Handle<Object> delegate = Execution::TryGetFunctionDelegate( |
| 2682 | isolate, Handle<JSReceiver>(callable), &threw); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 2683 | if (threw) return Failure::Exception(); |
| 2684 | callable = JSFunction::cast(*delegate); |
| 2685 | } |
| 2686 | JSFunction* function = JSFunction::cast(callable); |
| 2687 | SharedFunctionInfo* shared = function->shared(); |
| 2688 | return isolate->heap()->ToBoolean(shared->is_classic_mode()); |
| 2689 | } |
| 2690 | |
| 2691 | |
ricow@chromium.org | 4668a2c | 2011-08-29 10:41:00 +0000 | [diff] [blame] | 2692 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetDefaultReceiver) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 2693 | SealHandleScope shs(isolate); |
ricow@chromium.org | 4668a2c | 2011-08-29 10:41:00 +0000 | [diff] [blame] | 2694 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 2695 | CONVERT_ARG_CHECKED(JSReceiver, callable, 0); |
jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 2696 | |
| 2697 | if (!callable->IsJSFunction()) { |
| 2698 | HandleScope scope(isolate); |
| 2699 | bool threw = false; |
mstarzinger@chromium.org | e900018 | 2013-09-03 11:25:39 +0000 | [diff] [blame] | 2700 | Handle<Object> delegate = Execution::TryGetFunctionDelegate( |
| 2701 | isolate, Handle<JSReceiver>(callable), &threw); |
jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 2702 | if (threw) return Failure::Exception(); |
| 2703 | callable = JSFunction::cast(*delegate); |
| 2704 | } |
| 2705 | JSFunction* function = JSFunction::cast(callable); |
| 2706 | |
ricow@chromium.org | 4668a2c | 2011-08-29 10:41:00 +0000 | [diff] [blame] | 2707 | SharedFunctionInfo* shared = function->shared(); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 2708 | if (shared->native() || !shared->is_classic_mode()) { |
ricow@chromium.org | 4668a2c | 2011-08-29 10:41:00 +0000 | [diff] [blame] | 2709 | return isolate->heap()->undefined_value(); |
| 2710 | } |
| 2711 | // Returns undefined for strict or native functions, or |
| 2712 | // the associated global receiver for "normal" functions. |
| 2713 | |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 2714 | Context* native_context = |
| 2715 | function->context()->global_object()->native_context(); |
| 2716 | return native_context->global_object()->global_receiver(); |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 2717 | } |
| 2718 | |
| 2719 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2720 | RUNTIME_FUNCTION(MaybeObject*, Runtime_MaterializeRegExpLiteral) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2721 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2722 | ASSERT(args.length() == 4); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 2723 | CONVERT_ARG_HANDLE_CHECKED(FixedArray, literals, 0); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 2724 | int index = args.smi_at(1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2725 | Handle<String> pattern = args.at<String>(2); |
| 2726 | Handle<String> flags = args.at<String>(3); |
| 2727 | |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 2728 | // Get the RegExp function from the context in the literals array. |
| 2729 | // This is the RegExp function from the context in which the |
| 2730 | // function was created. We do not use the RegExp function from the |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 2731 | // current native context because this might be the RegExp function |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 2732 | // from another context which we should not have access to. |
mads.s.ager@gmail.com | 9a4089a | 2008-09-01 08:55:01 +0000 | [diff] [blame] | 2733 | Handle<JSFunction> constructor = |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 2734 | Handle<JSFunction>( |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 2735 | JSFunction::NativeContextFromLiterals(*literals)->regexp_function()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2736 | // Compute the regular expression literal. |
| 2737 | bool has_pending_exception; |
| 2738 | Handle<Object> regexp = |
mads.s.ager@gmail.com | 9a4089a | 2008-09-01 08:55:01 +0000 | [diff] [blame] | 2739 | RegExpImpl::CreateRegExpLiteral(constructor, pattern, flags, |
| 2740 | &has_pending_exception); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2741 | if (has_pending_exception) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2742 | ASSERT(isolate->has_pending_exception()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2743 | return Failure::Exception(); |
| 2744 | } |
| 2745 | literals->set(index, *regexp); |
| 2746 | return *regexp; |
| 2747 | } |
| 2748 | |
| 2749 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2750 | RUNTIME_FUNCTION(MaybeObject*, Runtime_FunctionGetName) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 2751 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2752 | ASSERT(args.length() == 1); |
| 2753 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 2754 | CONVERT_ARG_CHECKED(JSFunction, f, 0); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2755 | return f->shared()->name(); |
| 2756 | } |
| 2757 | |
| 2758 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2759 | RUNTIME_FUNCTION(MaybeObject*, Runtime_FunctionSetName) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 2760 | SealHandleScope shs(isolate); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 2761 | ASSERT(args.length() == 2); |
| 2762 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 2763 | CONVERT_ARG_CHECKED(JSFunction, f, 0); |
| 2764 | CONVERT_ARG_CHECKED(String, name, 1); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 2765 | f->shared()->set_name(name); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2766 | return isolate->heap()->undefined_value(); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 2767 | } |
| 2768 | |
| 2769 | |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2770 | RUNTIME_FUNCTION(MaybeObject*, Runtime_FunctionNameShouldPrintAsAnonymous) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 2771 | SealHandleScope shs(isolate); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2772 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 2773 | CONVERT_ARG_CHECKED(JSFunction, f, 0); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2774 | return isolate->heap()->ToBoolean( |
| 2775 | f->shared()->name_should_print_as_anonymous()); |
| 2776 | } |
| 2777 | |
| 2778 | |
| 2779 | RUNTIME_FUNCTION(MaybeObject*, Runtime_FunctionMarkNameShouldPrintAsAnonymous) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 2780 | SealHandleScope shs(isolate); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2781 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 2782 | CONVERT_ARG_CHECKED(JSFunction, f, 0); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2783 | f->shared()->set_name_should_print_as_anonymous(true); |
| 2784 | return isolate->heap()->undefined_value(); |
| 2785 | } |
| 2786 | |
| 2787 | |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 2788 | RUNTIME_FUNCTION(MaybeObject*, Runtime_FunctionIsGenerator) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 2789 | SealHandleScope shs(isolate); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 2790 | ASSERT(args.length() == 1); |
| 2791 | CONVERT_ARG_CHECKED(JSFunction, f, 0); |
| 2792 | return isolate->heap()->ToBoolean(f->shared()->is_generator()); |
| 2793 | } |
| 2794 | |
| 2795 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2796 | RUNTIME_FUNCTION(MaybeObject*, Runtime_FunctionRemovePrototype) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 2797 | SealHandleScope shs(isolate); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 2798 | ASSERT(args.length() == 1); |
| 2799 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 2800 | CONVERT_ARG_CHECKED(JSFunction, f, 0); |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 2801 | f->RemovePrototype(); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 2802 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2803 | return isolate->heap()->undefined_value(); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 2804 | } |
| 2805 | |
| 2806 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2807 | RUNTIME_FUNCTION(MaybeObject*, Runtime_FunctionGetScript) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2808 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2809 | ASSERT(args.length() == 1); |
| 2810 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 2811 | CONVERT_ARG_CHECKED(JSFunction, fun, 0); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2812 | Handle<Object> script = Handle<Object>(fun->shared()->script(), isolate); |
| 2813 | if (!script->IsScript()) return isolate->heap()->undefined_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2814 | |
| 2815 | return *GetScriptWrapper(Handle<Script>::cast(script)); |
| 2816 | } |
| 2817 | |
| 2818 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2819 | RUNTIME_FUNCTION(MaybeObject*, Runtime_FunctionGetSourceCode) { |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 2820 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2821 | ASSERT(args.length() == 1); |
| 2822 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 2823 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, f, 0); |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 2824 | Handle<SharedFunctionInfo> shared(f->shared()); |
| 2825 | return *shared->GetSourceCode(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2826 | } |
| 2827 | |
| 2828 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2829 | RUNTIME_FUNCTION(MaybeObject*, Runtime_FunctionGetScriptSourcePosition) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 2830 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2831 | ASSERT(args.length() == 1); |
| 2832 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 2833 | CONVERT_ARG_CHECKED(JSFunction, fun, 0); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2834 | int pos = fun->shared()->start_position(); |
| 2835 | return Smi::FromInt(pos); |
| 2836 | } |
| 2837 | |
| 2838 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2839 | RUNTIME_FUNCTION(MaybeObject*, Runtime_FunctionGetPositionForOffset) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 2840 | SealHandleScope shs(isolate); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 2841 | ASSERT(args.length() == 2); |
| 2842 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 2843 | CONVERT_ARG_CHECKED(Code, code, 0); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 2844 | CONVERT_NUMBER_CHECKED(int, offset, Int32, args[1]); |
| 2845 | |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 2846 | RUNTIME_ASSERT(0 <= offset && offset < code->Size()); |
| 2847 | |
| 2848 | Address pc = code->address() + offset; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2849 | return Smi::FromInt(code->SourcePosition(pc)); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 2850 | } |
| 2851 | |
| 2852 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2853 | RUNTIME_FUNCTION(MaybeObject*, Runtime_FunctionSetInstanceClassName) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 2854 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2855 | ASSERT(args.length() == 2); |
| 2856 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 2857 | CONVERT_ARG_CHECKED(JSFunction, fun, 0); |
| 2858 | CONVERT_ARG_CHECKED(String, name, 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2859 | fun->SetInstanceClassName(name); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2860 | return isolate->heap()->undefined_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2861 | } |
| 2862 | |
| 2863 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2864 | RUNTIME_FUNCTION(MaybeObject*, Runtime_FunctionSetLength) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 2865 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2866 | ASSERT(args.length() == 2); |
| 2867 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 2868 | CONVERT_ARG_CHECKED(JSFunction, fun, 0); |
| 2869 | CONVERT_SMI_ARG_CHECKED(length, 1); |
| 2870 | fun->shared()->set_length(length); |
| 2871 | return isolate->heap()->undefined_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2872 | } |
| 2873 | |
| 2874 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2875 | RUNTIME_FUNCTION(MaybeObject*, Runtime_FunctionSetPrototype) { |
rossberg@chromium.org | ebeba02 | 2013-08-19 09:36:44 +0000 | [diff] [blame] | 2876 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2877 | ASSERT(args.length() == 2); |
| 2878 | |
rossberg@chromium.org | ebeba02 | 2013-08-19 09:36:44 +0000 | [diff] [blame] | 2879 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, fun, 0); |
| 2880 | CONVERT_ARG_HANDLE_CHECKED(Object, value, 1); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 2881 | ASSERT(fun->should_have_prototype()); |
rossberg@chromium.org | ebeba02 | 2013-08-19 09:36:44 +0000 | [diff] [blame] | 2882 | Accessors::FunctionSetPrototype(fun, value); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2883 | return args[0]; // return TOS |
| 2884 | } |
| 2885 | |
| 2886 | |
ricow@chromium.org | 2c99e28 | 2011-07-28 09:15:17 +0000 | [diff] [blame] | 2887 | RUNTIME_FUNCTION(MaybeObject*, Runtime_FunctionSetReadOnlyPrototype) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 2888 | SealHandleScope shs(isolate); |
ricow@chromium.org | 2c99e28 | 2011-07-28 09:15:17 +0000 | [diff] [blame] | 2889 | RUNTIME_ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 2890 | CONVERT_ARG_CHECKED(JSFunction, function, 0); |
ricow@chromium.org | 2c99e28 | 2011-07-28 09:15:17 +0000 | [diff] [blame] | 2891 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 2892 | String* name = isolate->heap()->prototype_string(); |
ricow@chromium.org | 2c99e28 | 2011-07-28 09:15:17 +0000 | [diff] [blame] | 2893 | |
| 2894 | if (function->HasFastProperties()) { |
| 2895 | // Construct a new field descriptor with updated attributes. |
| 2896 | DescriptorArray* instance_desc = function->map()->instance_descriptors(); |
verwaest@chromium.org | 753aee4 | 2012-07-17 16:15:42 +0000 | [diff] [blame] | 2897 | |
verwaest@chromium.org | 06ab2ec | 2012-10-09 17:00:13 +0000 | [diff] [blame] | 2898 | int index = instance_desc->SearchWithCache(name, function->map()); |
ricow@chromium.org | 2c99e28 | 2011-07-28 09:15:17 +0000 | [diff] [blame] | 2899 | ASSERT(index != DescriptorArray::kNotFound); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 2900 | PropertyDetails details = instance_desc->GetDetails(index); |
verwaest@chromium.org | 753aee4 | 2012-07-17 16:15:42 +0000 | [diff] [blame] | 2901 | |
ricow@chromium.org | 2c99e28 | 2011-07-28 09:15:17 +0000 | [diff] [blame] | 2902 | CallbacksDescriptor new_desc(name, |
| 2903 | instance_desc->GetValue(index), |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 2904 | static_cast<PropertyAttributes>(details.attributes() | READ_ONLY)); |
verwaest@chromium.org | 753aee4 | 2012-07-17 16:15:42 +0000 | [diff] [blame] | 2905 | |
ricow@chromium.org | 2c99e28 | 2011-07-28 09:15:17 +0000 | [diff] [blame] | 2906 | // Create a new map featuring the new field descriptors array. |
rossberg@chromium.org | 657d53b | 2012-07-12 11:06:03 +0000 | [diff] [blame] | 2907 | Map* new_map; |
verwaest@chromium.org | 753aee4 | 2012-07-17 16:15:42 +0000 | [diff] [blame] | 2908 | MaybeObject* maybe_map = |
| 2909 | function->map()->CopyReplaceDescriptor( |
jkummerow@chromium.org | c195667 | 2012-10-11 15:57:38 +0000 | [diff] [blame] | 2910 | instance_desc, &new_desc, index, OMIT_TRANSITION); |
verwaest@chromium.org | 753aee4 | 2012-07-17 16:15:42 +0000 | [diff] [blame] | 2911 | if (!maybe_map->To(&new_map)) return maybe_map; |
| 2912 | |
ricow@chromium.org | 2c99e28 | 2011-07-28 09:15:17 +0000 | [diff] [blame] | 2913 | function->set_map(new_map); |
| 2914 | } else { // Dictionary properties. |
| 2915 | // Directly manipulate the property details. |
| 2916 | int entry = function->property_dictionary()->FindEntry(name); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2917 | ASSERT(entry != NameDictionary::kNotFound); |
ricow@chromium.org | 2c99e28 | 2011-07-28 09:15:17 +0000 | [diff] [blame] | 2918 | PropertyDetails details = function->property_dictionary()->DetailsAt(entry); |
| 2919 | PropertyDetails new_details( |
| 2920 | static_cast<PropertyAttributes>(details.attributes() | READ_ONLY), |
| 2921 | details.type(), |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 2922 | details.dictionary_index()); |
ricow@chromium.org | 2c99e28 | 2011-07-28 09:15:17 +0000 | [diff] [blame] | 2923 | function->property_dictionary()->DetailsAtPut(entry, new_details); |
| 2924 | } |
| 2925 | return function; |
| 2926 | } |
| 2927 | |
| 2928 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2929 | RUNTIME_FUNCTION(MaybeObject*, Runtime_FunctionIsAPIFunction) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 2930 | SealHandleScope shs(isolate); |
christian.plesner.hansen@gmail.com | 37abdec | 2009-01-06 14:43:28 +0000 | [diff] [blame] | 2931 | ASSERT(args.length() == 1); |
| 2932 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 2933 | CONVERT_ARG_CHECKED(JSFunction, f, 0); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2934 | return isolate->heap()->ToBoolean(f->shared()->IsApiFunction()); |
christian.plesner.hansen@gmail.com | 37abdec | 2009-01-06 14:43:28 +0000 | [diff] [blame] | 2935 | } |
| 2936 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2937 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2938 | RUNTIME_FUNCTION(MaybeObject*, Runtime_FunctionIsBuiltin) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 2939 | SealHandleScope shs(isolate); |
christian.plesner.hansen@gmail.com | 2bc58ef | 2009-09-22 10:00:30 +0000 | [diff] [blame] | 2940 | ASSERT(args.length() == 1); |
| 2941 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 2942 | CONVERT_ARG_CHECKED(JSFunction, f, 0); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 2943 | return isolate->heap()->ToBoolean(f->IsBuiltin()); |
christian.plesner.hansen@gmail.com | 2bc58ef | 2009-09-22 10:00:30 +0000 | [diff] [blame] | 2944 | } |
| 2945 | |
christian.plesner.hansen@gmail.com | 37abdec | 2009-01-06 14:43:28 +0000 | [diff] [blame] | 2946 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 2947 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SetCode) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2948 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2949 | ASSERT(args.length() == 2); |
| 2950 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 2951 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, target, 0); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2952 | Handle<Object> code = args.at<Object>(1); |
| 2953 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 2954 | if (code->IsNull()) return *target; |
| 2955 | RUNTIME_ASSERT(code->IsJSFunction()); |
| 2956 | Handle<JSFunction> source = Handle<JSFunction>::cast(code); |
| 2957 | Handle<SharedFunctionInfo> target_shared(target->shared()); |
| 2958 | Handle<SharedFunctionInfo> source_shared(source->shared()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2959 | |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 2960 | if (!Compiler::EnsureCompiled(source, KEEP_EXCEPTION)) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 2961 | return Failure::Exception(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2962 | } |
| 2963 | |
ulan@chromium.org | 906e2fb | 2013-05-14 08:14:38 +0000 | [diff] [blame] | 2964 | // Mark both, the source and the target, as un-flushable because the |
| 2965 | // shared unoptimized code makes them impossible to enqueue in a list. |
| 2966 | ASSERT(target_shared->code()->gc_metadata() == NULL); |
| 2967 | ASSERT(source_shared->code()->gc_metadata() == NULL); |
| 2968 | target_shared->set_dont_flush(true); |
| 2969 | source_shared->set_dont_flush(true); |
| 2970 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 2971 | // Set the code, scope info, formal parameter count, and the length |
bmeurer@chromium.org | c9913f0 | 2013-10-24 06:31:36 +0000 | [diff] [blame] | 2972 | // of the target shared function info. |
yangguo@chromium.org | 9768bf1 | 2013-01-11 14:51:07 +0000 | [diff] [blame] | 2973 | target_shared->ReplaceCode(source_shared->code()); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 2974 | target_shared->set_scope_info(source_shared->scope_info()); |
| 2975 | target_shared->set_length(source_shared->length()); |
| 2976 | target_shared->set_formal_parameter_count( |
| 2977 | source_shared->formal_parameter_count()); |
bmeurer@chromium.org | c9913f0 | 2013-10-24 06:31:36 +0000 | [diff] [blame] | 2978 | target_shared->set_script(source_shared->script()); |
| 2979 | target_shared->set_start_position_and_type( |
| 2980 | source_shared->start_position_and_type()); |
| 2981 | target_shared->set_end_position(source_shared->end_position()); |
| 2982 | bool was_native = target_shared->native(); |
| 2983 | target_shared->set_compiler_hints(source_shared->compiler_hints()); |
| 2984 | target_shared->set_native(was_native); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 2985 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 2986 | // Set the code of the target function. |
| 2987 | target->ReplaceCode(source_shared->code()); |
rossberg@chromium.org | 89e18f5 | 2012-10-22 13:09:53 +0000 | [diff] [blame] | 2988 | ASSERT(target->next_function_link()->IsUndefined()); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 2989 | |
| 2990 | // Make sure we get a fresh copy of the literal vector to avoid cross |
| 2991 | // context contamination. |
| 2992 | Handle<Context> context(source->context()); |
| 2993 | int number_of_literals = source->NumberOfLiterals(); |
| 2994 | Handle<FixedArray> literals = |
| 2995 | isolate->factory()->NewFixedArray(number_of_literals, TENURED); |
| 2996 | if (number_of_literals > 0) { |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 2997 | literals->set(JSFunction::kLiteralNativeContextIndex, |
| 2998 | context->native_context()); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 2999 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 3000 | target->set_context(*context); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3001 | target->set_literals(*literals); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3002 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3003 | if (isolate->logger()->is_logging_code_events() || |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 3004 | isolate->cpu_profiler()->is_profiling()) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3005 | isolate->logger()->LogExistingFunction( |
| 3006 | source_shared, Handle<Code>(source_shared->code())); |
| 3007 | } |
| 3008 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 3009 | return *target; |
| 3010 | } |
| 3011 | |
| 3012 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 3013 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SetExpectedNumberOfProperties) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3014 | HandleScope scope(isolate); |
ricow@chromium.org | d236f4d | 2010-09-01 06:52:08 +0000 | [diff] [blame] | 3015 | ASSERT(args.length() == 2); |
mstarzinger@chromium.org | 2ed0d02 | 2013-10-17 08:06:21 +0000 | [diff] [blame] | 3016 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, func, 0); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 3017 | CONVERT_SMI_ARG_CHECKED(num, 1); |
ricow@chromium.org | d236f4d | 2010-09-01 06:52:08 +0000 | [diff] [blame] | 3018 | RUNTIME_ASSERT(num >= 0); |
mstarzinger@chromium.org | 2ed0d02 | 2013-10-17 08:06:21 +0000 | [diff] [blame] | 3019 | // If objects constructed from this function exist then changing |
| 3020 | // 'estimated_nof_properties' is dangerous since the previous value might |
| 3021 | // have been compiled into the fast construct stub. Moreover, the inobject |
| 3022 | // slack tracking logic might have adjusted the previous value, so even |
| 3023 | // passing the same value is risky. |
| 3024 | if (!func->shared()->live_objects_may_exist()) { |
| 3025 | func->shared()->set_expected_nof_properties(num); |
| 3026 | if (func->has_initial_map()) { |
| 3027 | Handle<Map> new_initial_map = |
| 3028 | func->GetIsolate()->factory()->CopyMap( |
| 3029 | Handle<Map>(func->initial_map())); |
| 3030 | new_initial_map->set_unused_property_fields(num); |
| 3031 | func->set_initial_map(*new_initial_map); |
| 3032 | } |
| 3033 | } |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3034 | return isolate->heap()->undefined_value(); |
ricow@chromium.org | d236f4d | 2010-09-01 06:52:08 +0000 | [diff] [blame] | 3035 | } |
| 3036 | |
| 3037 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3038 | RUNTIME_FUNCTION(MaybeObject*, Runtime_CreateJSGeneratorObject) { |
verwaest@chromium.org | 057bd50 | 2013-11-06 12:03:29 +0000 | [diff] [blame] | 3039 | HandleScope scope(isolate); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3040 | ASSERT(args.length() == 0); |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 3041 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3042 | JavaScriptFrameIterator it(isolate); |
| 3043 | JavaScriptFrame* frame = it.frame(); |
verwaest@chromium.org | 057bd50 | 2013-11-06 12:03:29 +0000 | [diff] [blame] | 3044 | Handle<JSFunction> function(frame->function()); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3045 | RUNTIME_ASSERT(function->shared()->is_generator()); |
| 3046 | |
verwaest@chromium.org | 057bd50 | 2013-11-06 12:03:29 +0000 | [diff] [blame] | 3047 | Handle<JSGeneratorObject> generator; |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3048 | if (frame->IsConstructor()) { |
verwaest@chromium.org | 057bd50 | 2013-11-06 12:03:29 +0000 | [diff] [blame] | 3049 | generator = handle(JSGeneratorObject::cast(frame->receiver())); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3050 | } else { |
verwaest@chromium.org | 057bd50 | 2013-11-06 12:03:29 +0000 | [diff] [blame] | 3051 | generator = isolate->factory()->NewJSGeneratorObject(function); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3052 | } |
verwaest@chromium.org | 057bd50 | 2013-11-06 12:03:29 +0000 | [diff] [blame] | 3053 | generator->set_function(*function); |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 3054 | generator->set_context(Context::cast(frame->context())); |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 3055 | generator->set_receiver(frame->receiver()); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3056 | generator->set_continuation(0); |
| 3057 | generator->set_operand_stack(isolate->heap()->empty_fixed_array()); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 3058 | generator->set_stack_handler_index(-1); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3059 | |
verwaest@chromium.org | 057bd50 | 2013-11-06 12:03:29 +0000 | [diff] [blame] | 3060 | return *generator; |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3061 | } |
| 3062 | |
| 3063 | |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 3064 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SuspendJSGeneratorObject) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 3065 | SealHandleScope shs(isolate); |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 3066 | ASSERT(args.length() == 1); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3067 | CONVERT_ARG_CHECKED(JSGeneratorObject, generator_object, 0); |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 3068 | |
| 3069 | JavaScriptFrameIterator stack_iterator(isolate); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3070 | JavaScriptFrame* frame = stack_iterator.frame(); |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 3071 | RUNTIME_ASSERT(frame->function()->shared()->is_generator()); |
| 3072 | ASSERT_EQ(frame->function(), generator_object->function()); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 3073 | |
| 3074 | // The caller should have saved the context and continuation already. |
| 3075 | ASSERT_EQ(generator_object->context(), Context::cast(frame->context())); |
| 3076 | ASSERT_LT(0, generator_object->continuation()); |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 3077 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3078 | // We expect there to be at least two values on the operand stack: the return |
| 3079 | // value of the yield expression, and the argument to this runtime call. |
| 3080 | // Neither of those should be saved. |
| 3081 | int operands_count = frame->ComputeOperandsCount(); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 3082 | ASSERT_GE(operands_count, 2); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3083 | operands_count -= 2; |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 3084 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3085 | if (operands_count == 0) { |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 3086 | // Although it's semantically harmless to call this function with an |
| 3087 | // operands_count of zero, it is also unnecessary. |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 3088 | ASSERT_EQ(generator_object->operand_stack(), |
| 3089 | isolate->heap()->empty_fixed_array()); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 3090 | ASSERT_EQ(generator_object->stack_handler_index(), -1); |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 3091 | // If there are no operands on the stack, there shouldn't be a handler |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 3092 | // active either. |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 3093 | ASSERT(!frame->HasHandler()); |
| 3094 | } else { |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 3095 | int stack_handler_index = -1; |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3096 | MaybeObject* alloc = isolate->heap()->AllocateFixedArray(operands_count); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 3097 | FixedArray* operand_stack; |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3098 | if (!alloc->To(&operand_stack)) return alloc; |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 3099 | frame->SaveOperandStack(operand_stack, &stack_handler_index); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3100 | generator_object->set_operand_stack(operand_stack); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 3101 | generator_object->set_stack_handler_index(stack_handler_index); |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 3102 | } |
| 3103 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 3104 | return isolate->heap()->undefined_value(); |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 3105 | } |
| 3106 | |
| 3107 | |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 3108 | // Note that this function is the slow path for resuming generators. It is only |
| 3109 | // called if the suspended activation had operands on the stack, stack handlers |
| 3110 | // needing rewinding, or if the resume should throw an exception. The fast path |
| 3111 | // is handled directly in FullCodeGenerator::EmitGeneratorResume(), which is |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 3112 | // inlined into GeneratorNext and GeneratorThrow. EmitGeneratorResumeResume is |
| 3113 | // called in any case, as it needs to reconstruct the stack frame and make space |
| 3114 | // for arguments and operands. |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 3115 | RUNTIME_FUNCTION(MaybeObject*, Runtime_ResumeJSGeneratorObject) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 3116 | SealHandleScope shs(isolate); |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 3117 | ASSERT(args.length() == 3); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3118 | CONVERT_ARG_CHECKED(JSGeneratorObject, generator_object, 0); |
| 3119 | CONVERT_ARG_CHECKED(Object, value, 1); |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 3120 | CONVERT_SMI_ARG_CHECKED(resume_mode_int, 2); |
| 3121 | JavaScriptFrameIterator stack_iterator(isolate); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3122 | JavaScriptFrame* frame = stack_iterator.frame(); |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 3123 | |
| 3124 | ASSERT_EQ(frame->function(), generator_object->function()); |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 3125 | ASSERT(frame->function()->is_compiled()); |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 3126 | |
| 3127 | STATIC_ASSERT(JSGeneratorObject::kGeneratorExecuting <= 0); |
| 3128 | STATIC_ASSERT(JSGeneratorObject::kGeneratorClosed <= 0); |
| 3129 | |
| 3130 | Address pc = generator_object->function()->code()->instruction_start(); |
| 3131 | int offset = generator_object->continuation(); |
| 3132 | ASSERT(offset > 0); |
| 3133 | frame->set_pc(pc + offset); |
| 3134 | generator_object->set_continuation(JSGeneratorObject::kGeneratorExecuting); |
| 3135 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3136 | FixedArray* operand_stack = generator_object->operand_stack(); |
| 3137 | int operands_count = operand_stack->length(); |
| 3138 | if (operands_count != 0) { |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 3139 | frame->RestoreOperandStack(operand_stack, |
| 3140 | generator_object->stack_handler_index()); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3141 | generator_object->set_operand_stack(isolate->heap()->empty_fixed_array()); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 3142 | generator_object->set_stack_handler_index(-1); |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 3143 | } |
| 3144 | |
| 3145 | JSGeneratorObject::ResumeMode resume_mode = |
| 3146 | static_cast<JSGeneratorObject::ResumeMode>(resume_mode_int); |
| 3147 | switch (resume_mode) { |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 3148 | case JSGeneratorObject::NEXT: |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3149 | return value; |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 3150 | case JSGeneratorObject::THROW: |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3151 | return isolate->Throw(value); |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 3152 | } |
| 3153 | |
| 3154 | UNREACHABLE(); |
| 3155 | return isolate->ThrowIllegalOperation(); |
| 3156 | } |
| 3157 | |
| 3158 | |
| 3159 | RUNTIME_FUNCTION(MaybeObject*, Runtime_ThrowGeneratorStateError) { |
| 3160 | HandleScope scope(isolate); |
| 3161 | ASSERT(args.length() == 1); |
| 3162 | CONVERT_ARG_HANDLE_CHECKED(JSGeneratorObject, generator, 0); |
| 3163 | int continuation = generator->continuation(); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3164 | const char* message = continuation == JSGeneratorObject::kGeneratorClosed ? |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 3165 | "generator_finished" : "generator_running"; |
| 3166 | Vector< Handle<Object> > argv = HandleVector<Object>(NULL, 0); |
| 3167 | Handle<Object> error = isolate->factory()->NewError(message, argv); |
| 3168 | return isolate->Throw(*error); |
| 3169 | } |
| 3170 | |
| 3171 | |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 3172 | RUNTIME_FUNCTION(MaybeObject*, Runtime_ObjectFreeze) { |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 3173 | HandleScope scope(isolate); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 3174 | ASSERT(args.length() == 1); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 3175 | CONVERT_ARG_HANDLE_CHECKED(JSObject, object, 0); |
| 3176 | Handle<Object> result = JSObject::Freeze(object); |
| 3177 | RETURN_IF_EMPTY_HANDLE(isolate, result); |
| 3178 | return *result; |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 3179 | } |
| 3180 | |
| 3181 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3182 | MUST_USE_RESULT static MaybeObject* CharFromCode(Isolate* isolate, |
| 3183 | Object* char_code) { |
mstarzinger@chromium.org | b228be0 | 2013-04-18 14:56:59 +0000 | [diff] [blame] | 3184 | if (char_code->IsNumber()) { |
| 3185 | return isolate->heap()->LookupSingleCharacterStringFromCode( |
| 3186 | NumberToUint32(char_code) & 0xffff); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 3187 | } |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3188 | return isolate->heap()->empty_string(); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 3189 | } |
| 3190 | |
| 3191 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 3192 | RUNTIME_FUNCTION(MaybeObject*, Runtime_StringCharCodeAt) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 3193 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 3194 | ASSERT(args.length() == 2); |
| 3195 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 3196 | CONVERT_ARG_CHECKED(String, subject, 0); |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 3197 | CONVERT_NUMBER_CHECKED(uint32_t, i, Uint32, args[1]); |
lrn@chromium.org | 1af7e1b | 2010-06-07 11:12:01 +0000 | [diff] [blame] | 3198 | |
| 3199 | // Flatten the string. If someone wants to get a char at an index |
| 3200 | // in a cons string, it is likely that more indices will be |
| 3201 | // accessed. |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 3202 | Object* flat; |
| 3203 | { MaybeObject* maybe_flat = subject->TryFlatten(); |
| 3204 | if (!maybe_flat->ToObject(&flat)) return maybe_flat; |
| 3205 | } |
lrn@chromium.org | 1af7e1b | 2010-06-07 11:12:01 +0000 | [diff] [blame] | 3206 | subject = String::cast(flat); |
| 3207 | |
| 3208 | if (i >= static_cast<uint32_t>(subject->length())) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3209 | return isolate->heap()->nan_value(); |
lrn@chromium.org | 1af7e1b | 2010-06-07 11:12:01 +0000 | [diff] [blame] | 3210 | } |
| 3211 | |
| 3212 | return Smi::FromInt(subject->Get(i)); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 3213 | } |
| 3214 | |
| 3215 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 3216 | RUNTIME_FUNCTION(MaybeObject*, Runtime_CharFromCode) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 3217 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 3218 | ASSERT(args.length() == 1); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3219 | return CharFromCode(isolate, args[0]); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 3220 | } |
| 3221 | |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 3222 | |
| 3223 | class FixedArrayBuilder { |
| 3224 | public: |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3225 | explicit FixedArrayBuilder(Isolate* isolate, int initial_capacity) |
| 3226 | : array_(isolate->factory()->NewFixedArrayWithHoles(initial_capacity)), |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3227 | length_(0), |
| 3228 | has_non_smi_elements_(false) { |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 3229 | // Require a non-zero initial size. Ensures that doubling the size to |
| 3230 | // extend the array will work. |
| 3231 | ASSERT(initial_capacity > 0); |
| 3232 | } |
| 3233 | |
| 3234 | explicit FixedArrayBuilder(Handle<FixedArray> backing_store) |
| 3235 | : array_(backing_store), |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3236 | length_(0), |
| 3237 | has_non_smi_elements_(false) { |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 3238 | // Require a non-zero initial size. Ensures that doubling the size to |
| 3239 | // extend the array will work. |
| 3240 | ASSERT(backing_store->length() > 0); |
| 3241 | } |
| 3242 | |
| 3243 | bool HasCapacity(int elements) { |
| 3244 | int length = array_->length(); |
| 3245 | int required_length = length_ + elements; |
| 3246 | return (length >= required_length); |
| 3247 | } |
| 3248 | |
| 3249 | void EnsureCapacity(int elements) { |
| 3250 | int length = array_->length(); |
| 3251 | int required_length = length_ + elements; |
| 3252 | if (length < required_length) { |
| 3253 | int new_length = length; |
| 3254 | do { |
| 3255 | new_length *= 2; |
| 3256 | } while (new_length < required_length); |
| 3257 | Handle<FixedArray> extended_array = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3258 | array_->GetIsolate()->factory()->NewFixedArrayWithHoles(new_length); |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 3259 | array_->CopyTo(0, *extended_array, 0, length_); |
| 3260 | array_ = extended_array; |
| 3261 | } |
| 3262 | } |
| 3263 | |
| 3264 | void Add(Object* value) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3265 | ASSERT(!value->IsSmi()); |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 3266 | ASSERT(length_ < capacity()); |
| 3267 | array_->set(length_, value); |
| 3268 | length_++; |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3269 | has_non_smi_elements_ = true; |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 3270 | } |
| 3271 | |
| 3272 | void Add(Smi* value) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3273 | ASSERT(value->IsSmi()); |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 3274 | ASSERT(length_ < capacity()); |
| 3275 | array_->set(length_, value); |
| 3276 | length_++; |
| 3277 | } |
| 3278 | |
| 3279 | Handle<FixedArray> array() { |
| 3280 | return array_; |
| 3281 | } |
| 3282 | |
| 3283 | int length() { |
| 3284 | return length_; |
| 3285 | } |
| 3286 | |
| 3287 | int capacity() { |
| 3288 | return array_->length(); |
| 3289 | } |
| 3290 | |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 3291 | Handle<JSArray> ToJSArray(Handle<JSArray> target_array) { |
verwaest@chromium.org | d4be0f0 | 2013-06-05 13:39:03 +0000 | [diff] [blame] | 3292 | Factory* factory = target_array->GetIsolate()->factory(); |
| 3293 | factory->SetContent(target_array, array_); |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 3294 | target_array->set_length(Smi::FromInt(length_)); |
| 3295 | return target_array; |
| 3296 | } |
| 3297 | |
jkummerow@chromium.org | 78502a9 | 2012-09-06 13:50:42 +0000 | [diff] [blame] | 3298 | |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 3299 | private: |
| 3300 | Handle<FixedArray> array_; |
| 3301 | int length_; |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3302 | bool has_non_smi_elements_; |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 3303 | }; |
| 3304 | |
| 3305 | |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3306 | // Forward declarations. |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 3307 | const int kStringBuilderConcatHelperLengthBits = 11; |
| 3308 | const int kStringBuilderConcatHelperPositionBits = 19; |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3309 | |
| 3310 | template <typename schar> |
| 3311 | static inline void StringBuilderConcatHelper(String*, |
| 3312 | schar*, |
| 3313 | FixedArray*, |
| 3314 | int); |
| 3315 | |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 3316 | typedef BitField<int, 0, kStringBuilderConcatHelperLengthBits> |
| 3317 | StringBuilderSubstringLength; |
| 3318 | typedef BitField<int, |
| 3319 | kStringBuilderConcatHelperLengthBits, |
| 3320 | kStringBuilderConcatHelperPositionBits> |
| 3321 | StringBuilderSubstringPosition; |
| 3322 | |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3323 | |
| 3324 | class ReplacementStringBuilder { |
| 3325 | public: |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3326 | ReplacementStringBuilder(Heap* heap, |
| 3327 | Handle<String> subject, |
| 3328 | int estimated_part_count) |
| 3329 | : heap_(heap), |
| 3330 | array_builder_(heap->isolate(), estimated_part_count), |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 3331 | subject_(subject), |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3332 | character_count_(0), |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 3333 | is_ascii_(subject->IsOneByteRepresentation()) { |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3334 | // Require a non-zero initial size. Ensures that doubling the size to |
| 3335 | // extend the array will work. |
| 3336 | ASSERT(estimated_part_count > 0); |
| 3337 | } |
| 3338 | |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 3339 | static inline void AddSubjectSlice(FixedArrayBuilder* builder, |
| 3340 | int from, |
| 3341 | int to) { |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3342 | ASSERT(from >= 0); |
| 3343 | int length = to - from; |
| 3344 | ASSERT(length > 0); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3345 | if (StringBuilderSubstringLength::is_valid(length) && |
| 3346 | StringBuilderSubstringPosition::is_valid(from)) { |
| 3347 | int encoded_slice = StringBuilderSubstringLength::encode(length) | |
| 3348 | StringBuilderSubstringPosition::encode(from); |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 3349 | builder->Add(Smi::FromInt(encoded_slice)); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3350 | } else { |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 3351 | // Otherwise encode as two smis. |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 3352 | builder->Add(Smi::FromInt(-length)); |
| 3353 | builder->Add(Smi::FromInt(from)); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3354 | } |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 3355 | } |
| 3356 | |
| 3357 | |
| 3358 | void EnsureCapacity(int elements) { |
| 3359 | array_builder_.EnsureCapacity(elements); |
| 3360 | } |
| 3361 | |
| 3362 | |
| 3363 | void AddSubjectSlice(int from, int to) { |
| 3364 | AddSubjectSlice(&array_builder_, from, to); |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 3365 | IncrementCharacterCount(to - from); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3366 | } |
| 3367 | |
| 3368 | |
| 3369 | void AddString(Handle<String> string) { |
| 3370 | int length = string->length(); |
| 3371 | ASSERT(length > 0); |
| 3372 | AddElement(*string); |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 3373 | if (!string->IsOneByteRepresentation()) { |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3374 | is_ascii_ = false; |
| 3375 | } |
| 3376 | IncrementCharacterCount(length); |
| 3377 | } |
| 3378 | |
| 3379 | |
| 3380 | Handle<String> ToString() { |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 3381 | if (array_builder_.length() == 0) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3382 | return heap_->isolate()->factory()->empty_string(); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3383 | } |
| 3384 | |
| 3385 | Handle<String> joined_string; |
| 3386 | if (is_ascii_) { |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 3387 | Handle<SeqOneByteString> seq = NewRawOneByteString(character_count_); |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 3388 | DisallowHeapAllocation no_gc; |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 3389 | uint8_t* char_buffer = seq->GetChars(); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3390 | StringBuilderConcatHelper(*subject_, |
| 3391 | char_buffer, |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 3392 | *array_builder_.array(), |
| 3393 | array_builder_.length()); |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 3394 | joined_string = Handle<String>::cast(seq); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3395 | } else { |
| 3396 | // Non-ASCII. |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 3397 | Handle<SeqTwoByteString> seq = NewRawTwoByteString(character_count_); |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 3398 | DisallowHeapAllocation no_gc; |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3399 | uc16* char_buffer = seq->GetChars(); |
| 3400 | StringBuilderConcatHelper(*subject_, |
| 3401 | char_buffer, |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 3402 | *array_builder_.array(), |
| 3403 | array_builder_.length()); |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 3404 | joined_string = Handle<String>::cast(seq); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3405 | } |
| 3406 | return joined_string; |
| 3407 | } |
| 3408 | |
| 3409 | |
| 3410 | void IncrementCharacterCount(int by) { |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 3411 | if (character_count_ > String::kMaxLength - by) { |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3412 | V8::FatalProcessOutOfMemory("String.replace result too large."); |
| 3413 | } |
| 3414 | character_count_ += by; |
| 3415 | } |
| 3416 | |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 3417 | private: |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 3418 | Handle<SeqOneByteString> NewRawOneByteString(int length) { |
| 3419 | return heap_->isolate()->factory()->NewRawOneByteString(length); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3420 | } |
| 3421 | |
| 3422 | |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 3423 | Handle<SeqTwoByteString> NewRawTwoByteString(int length) { |
| 3424 | return heap_->isolate()->factory()->NewRawTwoByteString(length); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3425 | } |
| 3426 | |
| 3427 | |
| 3428 | void AddElement(Object* element) { |
| 3429 | ASSERT(element->IsSmi() || element->IsString()); |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 3430 | ASSERT(array_builder_.capacity() > array_builder_.length()); |
| 3431 | array_builder_.Add(element); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3432 | } |
| 3433 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3434 | Heap* heap_; |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 3435 | FixedArrayBuilder array_builder_; |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3436 | Handle<String> subject_; |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3437 | int character_count_; |
| 3438 | bool is_ascii_; |
| 3439 | }; |
| 3440 | |
| 3441 | |
| 3442 | class CompiledReplacement { |
| 3443 | public: |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3444 | explicit CompiledReplacement(Zone* zone) |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3445 | : parts_(1, zone), replacement_substrings_(0, zone), zone_(zone) {} |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3446 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3447 | // Return whether the replacement is simple. |
| 3448 | bool Compile(Handle<String> replacement, |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3449 | int capture_count, |
| 3450 | int subject_length); |
| 3451 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3452 | // Use Apply only if Compile returned false. |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3453 | void Apply(ReplacementStringBuilder* builder, |
| 3454 | int match_from, |
| 3455 | int match_to, |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3456 | int32_t* match); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3457 | |
| 3458 | // Number of distinct parts of the replacement pattern. |
| 3459 | int parts() { |
| 3460 | return parts_.length(); |
| 3461 | } |
jkummerow@chromium.org | e297f59 | 2011-06-08 10:05:15 +0000 | [diff] [blame] | 3462 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3463 | Zone* zone() const { return zone_; } |
| 3464 | |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3465 | private: |
| 3466 | enum PartType { |
| 3467 | SUBJECT_PREFIX = 1, |
| 3468 | SUBJECT_SUFFIX, |
| 3469 | SUBJECT_CAPTURE, |
| 3470 | REPLACEMENT_SUBSTRING, |
| 3471 | REPLACEMENT_STRING, |
| 3472 | |
| 3473 | NUMBER_OF_PART_TYPES |
| 3474 | }; |
| 3475 | |
| 3476 | struct ReplacementPart { |
| 3477 | static inline ReplacementPart SubjectMatch() { |
| 3478 | return ReplacementPart(SUBJECT_CAPTURE, 0); |
| 3479 | } |
| 3480 | static inline ReplacementPart SubjectCapture(int capture_index) { |
| 3481 | return ReplacementPart(SUBJECT_CAPTURE, capture_index); |
| 3482 | } |
| 3483 | static inline ReplacementPart SubjectPrefix() { |
| 3484 | return ReplacementPart(SUBJECT_PREFIX, 0); |
| 3485 | } |
| 3486 | static inline ReplacementPart SubjectSuffix(int subject_length) { |
| 3487 | return ReplacementPart(SUBJECT_SUFFIX, subject_length); |
| 3488 | } |
| 3489 | static inline ReplacementPart ReplacementString() { |
| 3490 | return ReplacementPart(REPLACEMENT_STRING, 0); |
| 3491 | } |
| 3492 | static inline ReplacementPart ReplacementSubString(int from, int to) { |
| 3493 | ASSERT(from >= 0); |
| 3494 | ASSERT(to > from); |
| 3495 | return ReplacementPart(-from, to); |
| 3496 | } |
| 3497 | |
| 3498 | // If tag <= 0 then it is the negation of a start index of a substring of |
| 3499 | // the replacement pattern, otherwise it's a value from PartType. |
| 3500 | ReplacementPart(int tag, int data) |
| 3501 | : tag(tag), data(data) { |
| 3502 | // Must be non-positive or a PartType value. |
| 3503 | ASSERT(tag < NUMBER_OF_PART_TYPES); |
| 3504 | } |
| 3505 | // Either a value of PartType or a non-positive number that is |
| 3506 | // the negation of an index into the replacement string. |
| 3507 | int tag; |
| 3508 | // The data value's interpretation depends on the value of tag: |
| 3509 | // tag == SUBJECT_PREFIX || |
| 3510 | // tag == SUBJECT_SUFFIX: data is unused. |
| 3511 | // tag == SUBJECT_CAPTURE: data is the number of the capture. |
| 3512 | // tag == REPLACEMENT_SUBSTRING || |
| 3513 | // tag == REPLACEMENT_STRING: data is index into array of substrings |
| 3514 | // of the replacement string. |
| 3515 | // tag <= 0: Temporary representation of the substring of the replacement |
| 3516 | // string ranging over -tag .. data. |
| 3517 | // Is replaced by REPLACEMENT_{SUB,}STRING when we create the |
| 3518 | // substring objects. |
| 3519 | int data; |
| 3520 | }; |
| 3521 | |
| 3522 | template<typename Char> |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3523 | bool ParseReplacementPattern(ZoneList<ReplacementPart>* parts, |
| 3524 | Vector<Char> characters, |
| 3525 | int capture_count, |
| 3526 | int subject_length, |
| 3527 | Zone* zone) { |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3528 | int length = characters.length(); |
| 3529 | int last = 0; |
| 3530 | for (int i = 0; i < length; i++) { |
| 3531 | Char c = characters[i]; |
| 3532 | if (c == '$') { |
| 3533 | int next_index = i + 1; |
| 3534 | if (next_index == length) { // No next character! |
| 3535 | break; |
| 3536 | } |
| 3537 | Char c2 = characters[next_index]; |
| 3538 | switch (c2) { |
| 3539 | case '$': |
| 3540 | if (i > last) { |
| 3541 | // There is a substring before. Include the first "$". |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3542 | parts->Add(ReplacementPart::ReplacementSubString(last, next_index), |
| 3543 | zone); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3544 | last = next_index + 1; // Continue after the second "$". |
| 3545 | } else { |
| 3546 | // Let the next substring start with the second "$". |
| 3547 | last = next_index; |
| 3548 | } |
| 3549 | i = next_index; |
| 3550 | break; |
| 3551 | case '`': |
| 3552 | if (i > last) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3553 | parts->Add(ReplacementPart::ReplacementSubString(last, i), zone); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3554 | } |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3555 | parts->Add(ReplacementPart::SubjectPrefix(), zone); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3556 | i = next_index; |
| 3557 | last = i + 1; |
| 3558 | break; |
| 3559 | case '\'': |
| 3560 | if (i > last) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3561 | parts->Add(ReplacementPart::ReplacementSubString(last, i), zone); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3562 | } |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3563 | parts->Add(ReplacementPart::SubjectSuffix(subject_length), zone); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3564 | i = next_index; |
| 3565 | last = i + 1; |
| 3566 | break; |
| 3567 | case '&': |
| 3568 | if (i > last) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3569 | parts->Add(ReplacementPart::ReplacementSubString(last, i), zone); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3570 | } |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3571 | parts->Add(ReplacementPart::SubjectMatch(), zone); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3572 | i = next_index; |
| 3573 | last = i + 1; |
| 3574 | break; |
| 3575 | case '0': |
| 3576 | case '1': |
| 3577 | case '2': |
| 3578 | case '3': |
| 3579 | case '4': |
| 3580 | case '5': |
| 3581 | case '6': |
| 3582 | case '7': |
| 3583 | case '8': |
| 3584 | case '9': { |
| 3585 | int capture_ref = c2 - '0'; |
| 3586 | if (capture_ref > capture_count) { |
| 3587 | i = next_index; |
| 3588 | continue; |
| 3589 | } |
| 3590 | int second_digit_index = next_index + 1; |
| 3591 | if (second_digit_index < length) { |
| 3592 | // Peek ahead to see if we have two digits. |
| 3593 | Char c3 = characters[second_digit_index]; |
| 3594 | if ('0' <= c3 && c3 <= '9') { // Double digits. |
| 3595 | int double_digit_ref = capture_ref * 10 + c3 - '0'; |
| 3596 | if (double_digit_ref <= capture_count) { |
| 3597 | next_index = second_digit_index; |
| 3598 | capture_ref = double_digit_ref; |
| 3599 | } |
| 3600 | } |
| 3601 | } |
| 3602 | if (capture_ref > 0) { |
| 3603 | if (i > last) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3604 | parts->Add(ReplacementPart::ReplacementSubString(last, i), zone); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3605 | } |
kasperl@chromium.org | 71affb5 | 2009-05-26 05:44:31 +0000 | [diff] [blame] | 3606 | ASSERT(capture_ref <= capture_count); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3607 | parts->Add(ReplacementPart::SubjectCapture(capture_ref), zone); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3608 | last = next_index + 1; |
| 3609 | } |
| 3610 | i = next_index; |
| 3611 | break; |
| 3612 | } |
| 3613 | default: |
| 3614 | i = next_index; |
| 3615 | break; |
| 3616 | } |
| 3617 | } |
| 3618 | } |
| 3619 | if (length > last) { |
| 3620 | if (last == 0) { |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3621 | // Replacement is simple. Do not use Apply to do the replacement. |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3622 | return true; |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3623 | } else { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3624 | parts->Add(ReplacementPart::ReplacementSubString(last, length), zone); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3625 | } |
| 3626 | } |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3627 | return false; |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3628 | } |
| 3629 | |
| 3630 | ZoneList<ReplacementPart> parts_; |
| 3631 | ZoneList<Handle<String> > replacement_substrings_; |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3632 | Zone* zone_; |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3633 | }; |
| 3634 | |
| 3635 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3636 | bool CompiledReplacement::Compile(Handle<String> replacement, |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3637 | int capture_count, |
| 3638 | int subject_length) { |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 3639 | { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 3640 | DisallowHeapAllocation no_gc; |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 3641 | String::FlatContent content = replacement->GetFlatContent(); |
| 3642 | ASSERT(content.IsFlat()); |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3643 | bool simple = false; |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 3644 | if (content.IsAscii()) { |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3645 | simple = ParseReplacementPattern(&parts_, |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 3646 | content.ToOneByteVector(), |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3647 | capture_count, |
| 3648 | subject_length, |
| 3649 | zone()); |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 3650 | } else { |
| 3651 | ASSERT(content.IsTwoByte()); |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3652 | simple = ParseReplacementPattern(&parts_, |
| 3653 | content.ToUC16Vector(), |
| 3654 | capture_count, |
| 3655 | subject_length, |
| 3656 | zone()); |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 3657 | } |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3658 | if (simple) return true; |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3659 | } |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3660 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3661 | Isolate* isolate = replacement->GetIsolate(); |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 3662 | // Find substrings of replacement string and create them as String objects. |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3663 | int substring_index = 0; |
| 3664 | for (int i = 0, n = parts_.length(); i < n; i++) { |
| 3665 | int tag = parts_[i].tag; |
| 3666 | if (tag <= 0) { // A replacement string slice. |
| 3667 | int from = -tag; |
| 3668 | int to = parts_[i].data; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3669 | replacement_substrings_.Add( |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3670 | isolate->factory()->NewSubString(replacement, from, to), zone()); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3671 | parts_[i].tag = REPLACEMENT_SUBSTRING; |
| 3672 | parts_[i].data = substring_index; |
| 3673 | substring_index++; |
| 3674 | } else if (tag == REPLACEMENT_STRING) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3675 | replacement_substrings_.Add(replacement, zone()); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3676 | parts_[i].data = substring_index; |
| 3677 | substring_index++; |
| 3678 | } |
| 3679 | } |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3680 | return false; |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3681 | } |
| 3682 | |
| 3683 | |
| 3684 | void CompiledReplacement::Apply(ReplacementStringBuilder* builder, |
| 3685 | int match_from, |
| 3686 | int match_to, |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3687 | int32_t* match) { |
| 3688 | ASSERT_LT(0, parts_.length()); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3689 | for (int i = 0, n = parts_.length(); i < n; i++) { |
| 3690 | ReplacementPart part = parts_[i]; |
| 3691 | switch (part.tag) { |
| 3692 | case SUBJECT_PREFIX: |
| 3693 | if (match_from > 0) builder->AddSubjectSlice(0, match_from); |
| 3694 | break; |
| 3695 | case SUBJECT_SUFFIX: { |
| 3696 | int subject_length = part.data; |
| 3697 | if (match_to < subject_length) { |
| 3698 | builder->AddSubjectSlice(match_to, subject_length); |
| 3699 | } |
| 3700 | break; |
| 3701 | } |
| 3702 | case SUBJECT_CAPTURE: { |
| 3703 | int capture = part.data; |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3704 | int from = match[capture * 2]; |
| 3705 | int to = match[capture * 2 + 1]; |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3706 | if (from >= 0 && to > from) { |
| 3707 | builder->AddSubjectSlice(from, to); |
| 3708 | } |
| 3709 | break; |
| 3710 | } |
| 3711 | case REPLACEMENT_SUBSTRING: |
| 3712 | case REPLACEMENT_STRING: |
| 3713 | builder->AddString(replacement_substrings_[part.data]); |
| 3714 | break; |
| 3715 | default: |
| 3716 | UNREACHABLE(); |
| 3717 | } |
| 3718 | } |
| 3719 | } |
| 3720 | |
| 3721 | |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 3722 | void FindAsciiStringIndices(Vector<const uint8_t> subject, |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3723 | char pattern, |
| 3724 | ZoneList<int>* indices, |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3725 | unsigned int limit, |
| 3726 | Zone* zone) { |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3727 | ASSERT(limit > 0); |
| 3728 | // Collect indices of pattern in subject using memchr. |
| 3729 | // Stop after finding at most limit values. |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 3730 | const uint8_t* subject_start = subject.start(); |
| 3731 | const uint8_t* subject_end = subject_start + subject.length(); |
| 3732 | const uint8_t* pos = subject_start; |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3733 | while (limit > 0) { |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 3734 | pos = reinterpret_cast<const uint8_t*>( |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3735 | memchr(pos, pattern, subject_end - pos)); |
| 3736 | if (pos == NULL) return; |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3737 | indices->Add(static_cast<int>(pos - subject_start), zone); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3738 | pos++; |
| 3739 | limit--; |
| 3740 | } |
| 3741 | } |
| 3742 | |
| 3743 | |
mmassi@chromium.org | 49a4467 | 2012-12-04 13:52:03 +0000 | [diff] [blame] | 3744 | void FindTwoByteStringIndices(const Vector<const uc16> subject, |
| 3745 | uc16 pattern, |
| 3746 | ZoneList<int>* indices, |
| 3747 | unsigned int limit, |
| 3748 | Zone* zone) { |
| 3749 | ASSERT(limit > 0); |
| 3750 | const uc16* subject_start = subject.start(); |
| 3751 | const uc16* subject_end = subject_start + subject.length(); |
| 3752 | for (const uc16* pos = subject_start; pos < subject_end && limit > 0; pos++) { |
| 3753 | if (*pos == pattern) { |
| 3754 | indices->Add(static_cast<int>(pos - subject_start), zone); |
| 3755 | limit--; |
| 3756 | } |
| 3757 | } |
| 3758 | } |
| 3759 | |
| 3760 | |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3761 | template <typename SubjectChar, typename PatternChar> |
| 3762 | void FindStringIndices(Isolate* isolate, |
| 3763 | Vector<const SubjectChar> subject, |
| 3764 | Vector<const PatternChar> pattern, |
| 3765 | ZoneList<int>* indices, |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3766 | unsigned int limit, |
| 3767 | Zone* zone) { |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3768 | ASSERT(limit > 0); |
| 3769 | // Collect indices of pattern in subject. |
| 3770 | // Stop after finding at most limit values. |
| 3771 | int pattern_length = pattern.length(); |
| 3772 | int index = 0; |
| 3773 | StringSearch<PatternChar, SubjectChar> search(isolate, pattern); |
| 3774 | while (limit > 0) { |
| 3775 | index = search.Search(subject, index); |
| 3776 | if (index < 0) return; |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3777 | indices->Add(index, zone); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3778 | index += pattern_length; |
| 3779 | limit--; |
| 3780 | } |
| 3781 | } |
| 3782 | |
| 3783 | |
| 3784 | void FindStringIndicesDispatch(Isolate* isolate, |
| 3785 | String* subject, |
| 3786 | String* pattern, |
| 3787 | ZoneList<int>* indices, |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3788 | unsigned int limit, |
| 3789 | Zone* zone) { |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3790 | { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 3791 | DisallowHeapAllocation no_gc; |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3792 | String::FlatContent subject_content = subject->GetFlatContent(); |
| 3793 | String::FlatContent pattern_content = pattern->GetFlatContent(); |
| 3794 | ASSERT(subject_content.IsFlat()); |
| 3795 | ASSERT(pattern_content.IsFlat()); |
| 3796 | if (subject_content.IsAscii()) { |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 3797 | Vector<const uint8_t> subject_vector = subject_content.ToOneByteVector(); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3798 | if (pattern_content.IsAscii()) { |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 3799 | Vector<const uint8_t> pattern_vector = |
| 3800 | pattern_content.ToOneByteVector(); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3801 | if (pattern_vector.length() == 1) { |
| 3802 | FindAsciiStringIndices(subject_vector, |
| 3803 | pattern_vector[0], |
| 3804 | indices, |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3805 | limit, |
| 3806 | zone); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3807 | } else { |
| 3808 | FindStringIndices(isolate, |
| 3809 | subject_vector, |
| 3810 | pattern_vector, |
| 3811 | indices, |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3812 | limit, |
| 3813 | zone); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3814 | } |
| 3815 | } else { |
| 3816 | FindStringIndices(isolate, |
| 3817 | subject_vector, |
| 3818 | pattern_content.ToUC16Vector(), |
| 3819 | indices, |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3820 | limit, |
| 3821 | zone); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3822 | } |
| 3823 | } else { |
| 3824 | Vector<const uc16> subject_vector = subject_content.ToUC16Vector(); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3825 | if (pattern_content.IsAscii()) { |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 3826 | Vector<const uint8_t> pattern_vector = |
| 3827 | pattern_content.ToOneByteVector(); |
mmassi@chromium.org | 49a4467 | 2012-12-04 13:52:03 +0000 | [diff] [blame] | 3828 | if (pattern_vector.length() == 1) { |
| 3829 | FindTwoByteStringIndices(subject_vector, |
| 3830 | pattern_vector[0], |
| 3831 | indices, |
| 3832 | limit, |
| 3833 | zone); |
| 3834 | } else { |
| 3835 | FindStringIndices(isolate, |
| 3836 | subject_vector, |
| 3837 | pattern_vector, |
| 3838 | indices, |
| 3839 | limit, |
| 3840 | zone); |
| 3841 | } |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3842 | } else { |
mmassi@chromium.org | 49a4467 | 2012-12-04 13:52:03 +0000 | [diff] [blame] | 3843 | Vector<const uc16> pattern_vector = pattern_content.ToUC16Vector(); |
| 3844 | if (pattern_vector.length() == 1) { |
| 3845 | FindTwoByteStringIndices(subject_vector, |
| 3846 | pattern_vector[0], |
| 3847 | indices, |
| 3848 | limit, |
| 3849 | zone); |
| 3850 | } else { |
| 3851 | FindStringIndices(isolate, |
| 3852 | subject_vector, |
| 3853 | pattern_vector, |
| 3854 | indices, |
| 3855 | limit, |
| 3856 | zone); |
| 3857 | } |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3858 | } |
| 3859 | } |
| 3860 | } |
| 3861 | } |
| 3862 | |
| 3863 | |
| 3864 | template<typename ResultSeqString> |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 3865 | MUST_USE_RESULT static MaybeObject* StringReplaceGlobalAtomRegExpWithString( |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3866 | Isolate* isolate, |
| 3867 | Handle<String> subject, |
| 3868 | Handle<JSRegExp> pattern_regexp, |
yangguo@chromium.org | efdb9d7 | 2012-04-26 08:21:05 +0000 | [diff] [blame] | 3869 | Handle<String> replacement, |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3870 | Handle<JSArray> last_match_info) { |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3871 | ASSERT(subject->IsFlat()); |
| 3872 | ASSERT(replacement->IsFlat()); |
| 3873 | |
machenbach@chromium.org | c1789ee | 2013-07-05 07:09:57 +0000 | [diff] [blame] | 3874 | ZoneScope zone_scope(isolate->runtime_zone()); |
| 3875 | ZoneList<int> indices(8, zone_scope.zone()); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3876 | ASSERT_EQ(JSRegExp::ATOM, pattern_regexp->TypeTag()); |
| 3877 | String* pattern = |
| 3878 | String::cast(pattern_regexp->DataAt(JSRegExp::kAtomPatternIndex)); |
| 3879 | int subject_len = subject->length(); |
| 3880 | int pattern_len = pattern->length(); |
| 3881 | int replacement_len = replacement->length(); |
| 3882 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3883 | FindStringIndicesDispatch( |
machenbach@chromium.org | c1789ee | 2013-07-05 07:09:57 +0000 | [diff] [blame] | 3884 | isolate, *subject, pattern, &indices, 0xffffffff, zone_scope.zone()); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3885 | |
| 3886 | int matches = indices.length(); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 3887 | if (matches == 0) return *subject; |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3888 | |
rossberg@chromium.org | 400388e | 2012-06-06 09:29:22 +0000 | [diff] [blame] | 3889 | // Detect integer overflow. |
| 3890 | int64_t result_len_64 = |
| 3891 | (static_cast<int64_t>(replacement_len) - |
| 3892 | static_cast<int64_t>(pattern_len)) * |
| 3893 | static_cast<int64_t>(matches) + |
| 3894 | static_cast<int64_t>(subject_len); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 3895 | if (result_len_64 > INT_MAX) return Failure::OutOfMemoryException(0x11); |
rossberg@chromium.org | 400388e | 2012-06-06 09:29:22 +0000 | [diff] [blame] | 3896 | int result_len = static_cast<int>(result_len_64); |
| 3897 | |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3898 | int subject_pos = 0; |
| 3899 | int result_pos = 0; |
| 3900 | |
| 3901 | Handle<ResultSeqString> result; |
| 3902 | if (ResultSeqString::kHasAsciiEncoding) { |
| 3903 | result = Handle<ResultSeqString>::cast( |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 3904 | isolate->factory()->NewRawOneByteString(result_len)); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3905 | } else { |
| 3906 | result = Handle<ResultSeqString>::cast( |
| 3907 | isolate->factory()->NewRawTwoByteString(result_len)); |
| 3908 | } |
| 3909 | |
| 3910 | for (int i = 0; i < matches; i++) { |
| 3911 | // Copy non-matched subject content. |
| 3912 | if (subject_pos < indices.at(i)) { |
| 3913 | String::WriteToFlat(*subject, |
| 3914 | result->GetChars() + result_pos, |
| 3915 | subject_pos, |
| 3916 | indices.at(i)); |
| 3917 | result_pos += indices.at(i) - subject_pos; |
| 3918 | } |
| 3919 | |
| 3920 | // Replace match. |
| 3921 | if (replacement_len > 0) { |
| 3922 | String::WriteToFlat(*replacement, |
| 3923 | result->GetChars() + result_pos, |
| 3924 | 0, |
| 3925 | replacement_len); |
| 3926 | result_pos += replacement_len; |
| 3927 | } |
| 3928 | |
| 3929 | subject_pos = indices.at(i) + pattern_len; |
| 3930 | } |
| 3931 | // Add remaining subject content at the end. |
| 3932 | if (subject_pos < subject_len) { |
| 3933 | String::WriteToFlat(*subject, |
| 3934 | result->GetChars() + result_pos, |
| 3935 | subject_pos, |
| 3936 | subject_len); |
| 3937 | } |
yangguo@chromium.org | efdb9d7 | 2012-04-26 08:21:05 +0000 | [diff] [blame] | 3938 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3939 | int32_t match_indices[] = { indices.at(matches - 1), |
| 3940 | indices.at(matches - 1) + pattern_len }; |
| 3941 | RegExpImpl::SetLastMatchInfo(last_match_info, subject, 0, match_indices); |
yangguo@chromium.org | efdb9d7 | 2012-04-26 08:21:05 +0000 | [diff] [blame] | 3942 | |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3943 | return *result; |
| 3944 | } |
| 3945 | |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3946 | |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 3947 | MUST_USE_RESULT static MaybeObject* StringReplaceGlobalRegExpWithString( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3948 | Isolate* isolate, |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3949 | Handle<String> subject, |
| 3950 | Handle<JSRegExp> regexp, |
| 3951 | Handle<String> replacement, |
| 3952 | Handle<JSArray> last_match_info) { |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3953 | ASSERT(subject->IsFlat()); |
| 3954 | ASSERT(replacement->IsFlat()); |
| 3955 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3956 | int capture_count = regexp->CaptureCount(); |
| 3957 | int subject_length = subject->length(); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3958 | |
| 3959 | // CompiledReplacement uses zone allocation. |
machenbach@chromium.org | c1789ee | 2013-07-05 07:09:57 +0000 | [diff] [blame] | 3960 | ZoneScope zone_scope(isolate->runtime_zone()); |
| 3961 | CompiledReplacement compiled_replacement(zone_scope.zone()); |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3962 | bool simple_replace = compiled_replacement.Compile(replacement, |
| 3963 | capture_count, |
| 3964 | subject_length); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3965 | |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3966 | // Shortcut for simple non-regexp global replacements |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 3967 | if (regexp->TypeTag() == JSRegExp::ATOM && simple_replace) { |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3968 | if (subject->HasOnlyOneByteChars() && |
| 3969 | replacement->HasOnlyOneByteChars()) { |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 3970 | return StringReplaceGlobalAtomRegExpWithString<SeqOneByteString>( |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3971 | isolate, subject, regexp, replacement, last_match_info); |
| 3972 | } else { |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 3973 | return StringReplaceGlobalAtomRegExpWithString<SeqTwoByteString>( |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3974 | isolate, subject, regexp, replacement, last_match_info); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 3975 | } |
| 3976 | } |
| 3977 | |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 3978 | RegExpImpl::GlobalCache global_cache(regexp, subject, true, isolate); |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3979 | if (global_cache.HasException()) return Failure::Exception(); |
| 3980 | |
| 3981 | int32_t* current_match = global_cache.FetchNext(); |
| 3982 | if (current_match == NULL) { |
| 3983 | if (global_cache.HasException()) return Failure::Exception(); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 3984 | return *subject; |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3985 | } |
| 3986 | |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3987 | // Guessing the number of parts that the final result string is built |
| 3988 | // from. Global regexps can match any number of times, so we guess |
| 3989 | // conservatively. |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 3990 | int expected_parts = (compiled_replacement.parts() + 1) * 4 + 1; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3991 | ReplacementStringBuilder builder(isolate->heap(), |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3992 | subject, |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 3993 | expected_parts); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 3994 | |
ager@chromium.org | 6141cbe | 2009-11-20 12:14:52 +0000 | [diff] [blame] | 3995 | // Number of parts added by compiled replacement plus preceeding |
| 3996 | // string and possibly suffix after last match. It is possible for |
| 3997 | // all components to use two elements when encoded as two smis. |
| 3998 | const int parts_added_per_loop = 2 * (compiled_replacement.parts() + 2); |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 3999 | |
| 4000 | int prev = 0; |
| 4001 | |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 4002 | do { |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 4003 | builder.EnsureCapacity(parts_added_per_loop); |
| 4004 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4005 | int start = current_match[0]; |
| 4006 | int end = current_match[1]; |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 4007 | |
| 4008 | if (prev < start) { |
| 4009 | builder.AddSubjectSlice(prev, start); |
| 4010 | } |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 4011 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4012 | if (simple_replace) { |
| 4013 | builder.AddString(replacement); |
| 4014 | } else { |
| 4015 | compiled_replacement.Apply(&builder, |
| 4016 | start, |
| 4017 | end, |
| 4018 | current_match); |
| 4019 | } |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 4020 | prev = end; |
| 4021 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4022 | current_match = global_cache.FetchNext(); |
| 4023 | } while (current_match != NULL); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 4024 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4025 | if (global_cache.HasException()) return Failure::Exception(); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 4026 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4027 | if (prev < subject_length) { |
| 4028 | builder.EnsureCapacity(2); |
| 4029 | builder.AddSubjectSlice(prev, subject_length); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 4030 | } |
| 4031 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4032 | RegExpImpl::SetLastMatchInfo(last_match_info, |
| 4033 | subject, |
| 4034 | capture_count, |
| 4035 | global_cache.LastSuccessfulMatch()); |
| 4036 | |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 4037 | return *(builder.ToString()); |
| 4038 | } |
| 4039 | |
| 4040 | |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 4041 | template <typename ResultSeqString> |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 4042 | MUST_USE_RESULT static MaybeObject* StringReplaceGlobalRegExpWithEmptyString( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4043 | Isolate* isolate, |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4044 | Handle<String> subject, |
| 4045 | Handle<JSRegExp> regexp, |
| 4046 | Handle<JSArray> last_match_info) { |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 4047 | ASSERT(subject->IsFlat()); |
| 4048 | |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 4049 | // Shortcut for simple non-regexp global replacements |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 4050 | if (regexp->TypeTag() == JSRegExp::ATOM) { |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 4051 | Handle<String> empty_string = isolate->factory()->empty_string(); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 4052 | if (subject->IsOneByteRepresentation()) { |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 4053 | return StringReplaceGlobalAtomRegExpWithString<SeqOneByteString>( |
| 4054 | isolate, subject, regexp, empty_string, last_match_info); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 4055 | } else { |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 4056 | return StringReplaceGlobalAtomRegExpWithString<SeqTwoByteString>( |
| 4057 | isolate, subject, regexp, empty_string, last_match_info); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 4058 | } |
| 4059 | } |
| 4060 | |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 4061 | RegExpImpl::GlobalCache global_cache(regexp, subject, true, isolate); |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4062 | if (global_cache.HasException()) return Failure::Exception(); |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 4063 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4064 | int32_t* current_match = global_cache.FetchNext(); |
| 4065 | if (current_match == NULL) { |
| 4066 | if (global_cache.HasException()) return Failure::Exception(); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 4067 | return *subject; |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 4068 | } |
| 4069 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4070 | int start = current_match[0]; |
| 4071 | int end = current_match[1]; |
| 4072 | int capture_count = regexp->CaptureCount(); |
| 4073 | int subject_length = subject->length(); |
yangguo@chromium.org | efdb9d7 | 2012-04-26 08:21:05 +0000 | [diff] [blame] | 4074 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4075 | int new_length = subject_length - (end - start); |
| 4076 | if (new_length == 0) return isolate->heap()->empty_string(); |
yangguo@chromium.org | efdb9d7 | 2012-04-26 08:21:05 +0000 | [diff] [blame] | 4077 | |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 4078 | Handle<ResultSeqString> answer; |
| 4079 | if (ResultSeqString::kHasAsciiEncoding) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4080 | answer = Handle<ResultSeqString>::cast( |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 4081 | isolate->factory()->NewRawOneByteString(new_length)); |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 4082 | } else { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4083 | answer = Handle<ResultSeqString>::cast( |
| 4084 | isolate->factory()->NewRawTwoByteString(new_length)); |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 4085 | } |
| 4086 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4087 | int prev = 0; |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 4088 | int position = 0; |
| 4089 | |
| 4090 | do { |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4091 | start = current_match[0]; |
| 4092 | end = current_match[1]; |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 4093 | if (prev < start) { |
| 4094 | // Add substring subject[prev;start] to answer string. |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 4095 | String::WriteToFlat(*subject, answer->GetChars() + position, prev, start); |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 4096 | position += start - prev; |
| 4097 | } |
| 4098 | prev = end; |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 4099 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4100 | current_match = global_cache.FetchNext(); |
| 4101 | } while (current_match != NULL); |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 4102 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4103 | if (global_cache.HasException()) return Failure::Exception(); |
| 4104 | |
| 4105 | RegExpImpl::SetLastMatchInfo(last_match_info, |
| 4106 | subject, |
| 4107 | capture_count, |
| 4108 | global_cache.LastSuccessfulMatch()); |
| 4109 | |
| 4110 | if (prev < subject_length) { |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 4111 | // Add substring subject[prev;length] to answer string. |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4112 | String::WriteToFlat( |
| 4113 | *subject, answer->GetChars() + position, prev, subject_length); |
| 4114 | position += subject_length - prev; |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 4115 | } |
| 4116 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4117 | if (position == 0) return isolate->heap()->empty_string(); |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 4118 | |
| 4119 | // Shorten string and fill |
| 4120 | int string_size = ResultSeqString::SizeFor(position); |
| 4121 | int allocated_string_size = ResultSeqString::SizeFor(new_length); |
| 4122 | int delta = allocated_string_size - string_size; |
| 4123 | |
| 4124 | answer->set_length(position); |
| 4125 | if (delta == 0) return *answer; |
| 4126 | |
| 4127 | Address end_of_string = answer->address() + string_size; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4128 | isolate->heap()->CreateFillerObjectAt(end_of_string, delta); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4129 | if (Marking::IsBlack(Marking::MarkBitFrom(*answer))) { |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 4130 | MemoryChunk::IncrementLiveBytesFromMutator(answer->address(), -delta); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4131 | } |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 4132 | |
| 4133 | return *answer; |
| 4134 | } |
| 4135 | |
| 4136 | |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 4137 | RUNTIME_FUNCTION(MaybeObject*, Runtime_StringReplaceGlobalRegExpWithString) { |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4138 | HandleScope scope(isolate); |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 4139 | ASSERT(args.length() == 4); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 4140 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4141 | CONVERT_ARG_HANDLE_CHECKED(String, subject, 0); |
| 4142 | CONVERT_ARG_HANDLE_CHECKED(String, replacement, 2); |
| 4143 | CONVERT_ARG_HANDLE_CHECKED(JSRegExp, regexp, 1); |
| 4144 | CONVERT_ARG_HANDLE_CHECKED(JSArray, last_match_info, 3); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 4145 | |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 4146 | ASSERT(regexp->GetFlags().is_global()); |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4147 | |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 4148 | if (!subject->IsFlat()) subject = FlattenGetString(subject); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 4149 | |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 4150 | if (replacement->length() == 0) { |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 4151 | if (subject->HasOnlyOneByteChars()) { |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 4152 | return StringReplaceGlobalRegExpWithEmptyString<SeqOneByteString>( |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4153 | isolate, subject, regexp, last_match_info); |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 4154 | } else { |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 4155 | return StringReplaceGlobalRegExpWithEmptyString<SeqTwoByteString>( |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4156 | isolate, subject, regexp, last_match_info); |
erik.corry@gmail.com | 4a2e25e | 2010-07-07 12:22:46 +0000 | [diff] [blame] | 4157 | } |
| 4158 | } |
| 4159 | |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 4160 | if (!replacement->IsFlat()) replacement = FlattenGetString(replacement); |
| 4161 | |
| 4162 | return StringReplaceGlobalRegExpWithString( |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4163 | isolate, subject, regexp, replacement, last_match_info); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 4164 | } |
| 4165 | |
| 4166 | |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 4167 | Handle<String> StringReplaceOneCharWithString(Isolate* isolate, |
| 4168 | Handle<String> subject, |
| 4169 | Handle<String> search, |
| 4170 | Handle<String> replace, |
| 4171 | bool* found, |
| 4172 | int recursion_limit) { |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 4173 | if (recursion_limit == 0) return Handle<String>::null(); |
| 4174 | if (subject->IsConsString()) { |
| 4175 | ConsString* cons = ConsString::cast(*subject); |
| 4176 | Handle<String> first = Handle<String>(cons->first()); |
| 4177 | Handle<String> second = Handle<String>(cons->second()); |
| 4178 | Handle<String> new_first = |
| 4179 | StringReplaceOneCharWithString(isolate, |
| 4180 | first, |
| 4181 | search, |
| 4182 | replace, |
| 4183 | found, |
| 4184 | recursion_limit - 1); |
| 4185 | if (*found) return isolate->factory()->NewConsString(new_first, second); |
| 4186 | if (new_first.is_null()) return new_first; |
| 4187 | |
| 4188 | Handle<String> new_second = |
| 4189 | StringReplaceOneCharWithString(isolate, |
| 4190 | second, |
| 4191 | search, |
| 4192 | replace, |
| 4193 | found, |
| 4194 | recursion_limit - 1); |
| 4195 | if (*found) return isolate->factory()->NewConsString(first, new_second); |
| 4196 | if (new_second.is_null()) return new_second; |
| 4197 | |
| 4198 | return subject; |
| 4199 | } else { |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 4200 | int index = Runtime::StringMatch(isolate, subject, search, 0); |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 4201 | if (index == -1) return subject; |
| 4202 | *found = true; |
| 4203 | Handle<String> first = isolate->factory()->NewSubString(subject, 0, index); |
| 4204 | Handle<String> cons1 = isolate->factory()->NewConsString(first, replace); |
| 4205 | Handle<String> second = |
| 4206 | isolate->factory()->NewSubString(subject, index + 1, subject->length()); |
| 4207 | return isolate->factory()->NewConsString(cons1, second); |
| 4208 | } |
| 4209 | } |
| 4210 | |
| 4211 | |
| 4212 | RUNTIME_FUNCTION(MaybeObject*, Runtime_StringReplaceOneCharWithString) { |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 4213 | HandleScope scope(isolate); |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 4214 | ASSERT(args.length() == 3); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 4215 | CONVERT_ARG_HANDLE_CHECKED(String, subject, 0); |
| 4216 | CONVERT_ARG_HANDLE_CHECKED(String, search, 1); |
| 4217 | CONVERT_ARG_HANDLE_CHECKED(String, replace, 2); |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 4218 | |
| 4219 | // If the cons string tree is too deep, we simply abort the recursion and |
| 4220 | // retry with a flattened subject string. |
| 4221 | const int kRecursionLimit = 0x1000; |
| 4222 | bool found = false; |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 4223 | Handle<String> result = StringReplaceOneCharWithString(isolate, |
| 4224 | subject, |
| 4225 | search, |
| 4226 | replace, |
| 4227 | &found, |
| 4228 | kRecursionLimit); |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 4229 | if (!result.is_null()) return *result; |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 4230 | return *StringReplaceOneCharWithString(isolate, |
| 4231 | FlattenGetString(subject), |
| 4232 | search, |
| 4233 | replace, |
| 4234 | &found, |
| 4235 | kRecursionLimit); |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 4236 | } |
| 4237 | |
| 4238 | |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 4239 | // Perform string match of pattern on subject, starting at start index. |
| 4240 | // Caller must ensure that 0 <= start_index <= sub->length(), |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 4241 | // and should check that pat->length() + start_index <= sub->length(). |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4242 | int Runtime::StringMatch(Isolate* isolate, |
| 4243 | Handle<String> sub, |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 4244 | Handle<String> pat, |
| 4245 | int start_index) { |
| 4246 | ASSERT(0 <= start_index); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 4247 | ASSERT(start_index <= sub->length()); |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 4248 | |
ager@chromium.org | c3e50d8 | 2008-11-05 11:53:10 +0000 | [diff] [blame] | 4249 | int pattern_length = pat->length(); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 4250 | if (pattern_length == 0) return start_index; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4251 | |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 4252 | int subject_length = sub->length(); |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 4253 | if (start_index + pattern_length > subject_length) return -1; |
| 4254 | |
ricow@chromium.org | d236f4d | 2010-09-01 06:52:08 +0000 | [diff] [blame] | 4255 | if (!sub->IsFlat()) FlattenString(sub); |
| 4256 | if (!pat->IsFlat()) FlattenString(pat); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 4257 | |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 4258 | DisallowHeapAllocation no_gc; // ensure vectors stay valid |
lrn@chromium.org | 32d961d | 2010-06-30 09:09:34 +0000 | [diff] [blame] | 4259 | // Extract flattened substrings of cons strings before determining asciiness. |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 4260 | String::FlatContent seq_sub = sub->GetFlatContent(); |
| 4261 | String::FlatContent seq_pat = pat->GetFlatContent(); |
lrn@chromium.org | 32d961d | 2010-06-30 09:09:34 +0000 | [diff] [blame] | 4262 | |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 4263 | // dispatch on type of strings |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 4264 | if (seq_pat.IsAscii()) { |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 4265 | Vector<const uint8_t> pat_vector = seq_pat.ToOneByteVector(); |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 4266 | if (seq_sub.IsAscii()) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4267 | return SearchString(isolate, |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 4268 | seq_sub.ToOneByteVector(), |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4269 | pat_vector, |
| 4270 | start_index); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 4271 | } |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4272 | return SearchString(isolate, |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 4273 | seq_sub.ToUC16Vector(), |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4274 | pat_vector, |
| 4275 | start_index); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 4276 | } |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 4277 | Vector<const uc16> pat_vector = seq_pat.ToUC16Vector(); |
| 4278 | if (seq_sub.IsAscii()) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4279 | return SearchString(isolate, |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 4280 | seq_sub.ToOneByteVector(), |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4281 | pat_vector, |
| 4282 | start_index); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4283 | } |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4284 | return SearchString(isolate, |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 4285 | seq_sub.ToUC16Vector(), |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4286 | pat_vector, |
| 4287 | start_index); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 4288 | } |
| 4289 | |
| 4290 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 4291 | RUNTIME_FUNCTION(MaybeObject*, Runtime_StringIndexOf) { |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 4292 | HandleScope scope(isolate); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 4293 | ASSERT(args.length() == 3); |
| 4294 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 4295 | CONVERT_ARG_HANDLE_CHECKED(String, sub, 0); |
| 4296 | CONVERT_ARG_HANDLE_CHECKED(String, pat, 1); |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 4297 | |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 4298 | Object* index = args[2]; |
| 4299 | uint32_t start_index; |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 4300 | if (!index->ToArrayIndex(&start_index)) return Smi::FromInt(-1); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 4301 | |
ager@chromium.org | 870a0b6 | 2008-11-04 11:43:05 +0000 | [diff] [blame] | 4302 | RUNTIME_ASSERT(start_index <= static_cast<uint32_t>(sub->length())); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4303 | int position = |
| 4304 | Runtime::StringMatch(isolate, sub, pat, start_index); |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 4305 | return Smi::FromInt(position); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4306 | } |
| 4307 | |
| 4308 | |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 4309 | template <typename schar, typename pchar> |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 4310 | static int StringMatchBackwards(Vector<const schar> subject, |
| 4311 | Vector<const pchar> pattern, |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 4312 | int idx) { |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 4313 | int pattern_length = pattern.length(); |
| 4314 | ASSERT(pattern_length >= 1); |
| 4315 | ASSERT(idx + pattern_length <= subject.length()); |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 4316 | |
| 4317 | if (sizeof(schar) == 1 && sizeof(pchar) > 1) { |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 4318 | for (int i = 0; i < pattern_length; i++) { |
| 4319 | uc16 c = pattern[i]; |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 4320 | if (c > String::kMaxOneByteCharCode) { |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 4321 | return -1; |
| 4322 | } |
| 4323 | } |
| 4324 | } |
| 4325 | |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 4326 | pchar pattern_first_char = pattern[0]; |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 4327 | for (int i = idx; i >= 0; i--) { |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 4328 | if (subject[i] != pattern_first_char) continue; |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 4329 | int j = 1; |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 4330 | while (j < pattern_length) { |
| 4331 | if (pattern[j] != subject[i+j]) { |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 4332 | break; |
| 4333 | } |
| 4334 | j++; |
| 4335 | } |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 4336 | if (j == pattern_length) { |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 4337 | return i; |
| 4338 | } |
| 4339 | } |
| 4340 | return -1; |
| 4341 | } |
| 4342 | |
mstarzinger@chromium.org | e0e1b0d | 2013-07-08 08:38:06 +0000 | [diff] [blame] | 4343 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 4344 | RUNTIME_FUNCTION(MaybeObject*, Runtime_StringLastIndexOf) { |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 4345 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4346 | ASSERT(args.length() == 3); |
| 4347 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 4348 | CONVERT_ARG_HANDLE_CHECKED(String, sub, 0); |
| 4349 | CONVERT_ARG_HANDLE_CHECKED(String, pat, 1); |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 4350 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4351 | Object* index = args[2]; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4352 | uint32_t start_index; |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 4353 | if (!index->ToArrayIndex(&start_index)) return Smi::FromInt(-1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4354 | |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 4355 | uint32_t pat_length = pat->length(); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 4356 | uint32_t sub_length = sub->length(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4357 | |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 4358 | if (start_index + pat_length > sub_length) { |
| 4359 | start_index = sub_length - pat_length; |
kasper.lund | bd3ec4e | 2008-07-09 11:06:54 +0000 | [diff] [blame] | 4360 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4361 | |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 4362 | if (pat_length == 0) { |
| 4363 | return Smi::FromInt(start_index); |
| 4364 | } |
| 4365 | |
ricow@chromium.org | d236f4d | 2010-09-01 06:52:08 +0000 | [diff] [blame] | 4366 | if (!sub->IsFlat()) FlattenString(sub); |
| 4367 | if (!pat->IsFlat()) FlattenString(pat); |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 4368 | |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 4369 | int position = -1; |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 4370 | DisallowHeapAllocation no_gc; // ensure vectors stay valid |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 4371 | |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 4372 | String::FlatContent sub_content = sub->GetFlatContent(); |
| 4373 | String::FlatContent pat_content = pat->GetFlatContent(); |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 4374 | |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 4375 | if (pat_content.IsAscii()) { |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 4376 | Vector<const uint8_t> pat_vector = pat_content.ToOneByteVector(); |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 4377 | if (sub_content.IsAscii()) { |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 4378 | position = StringMatchBackwards(sub_content.ToOneByteVector(), |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 4379 | pat_vector, |
| 4380 | start_index); |
| 4381 | } else { |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 4382 | position = StringMatchBackwards(sub_content.ToUC16Vector(), |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 4383 | pat_vector, |
| 4384 | start_index); |
| 4385 | } |
| 4386 | } else { |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 4387 | Vector<const uc16> pat_vector = pat_content.ToUC16Vector(); |
| 4388 | if (sub_content.IsAscii()) { |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 4389 | position = StringMatchBackwards(sub_content.ToOneByteVector(), |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 4390 | pat_vector, |
| 4391 | start_index); |
| 4392 | } else { |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 4393 | position = StringMatchBackwards(sub_content.ToUC16Vector(), |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 4394 | pat_vector, |
| 4395 | start_index); |
| 4396 | } |
| 4397 | } |
| 4398 | |
| 4399 | return Smi::FromInt(position); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4400 | } |
| 4401 | |
| 4402 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 4403 | RUNTIME_FUNCTION(MaybeObject*, Runtime_StringLocaleCompare) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 4404 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4405 | ASSERT(args.length() == 2); |
| 4406 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 4407 | CONVERT_ARG_CHECKED(String, str1, 0); |
| 4408 | CONVERT_ARG_CHECKED(String, str2, 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4409 | |
| 4410 | if (str1 == str2) return Smi::FromInt(0); // Equal. |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 4411 | int str1_length = str1->length(); |
| 4412 | int str2_length = str2->length(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4413 | |
| 4414 | // Decide trivial cases without flattening. |
| 4415 | if (str1_length == 0) { |
| 4416 | if (str2_length == 0) return Smi::FromInt(0); // Equal. |
| 4417 | return Smi::FromInt(-str2_length); |
| 4418 | } else { |
| 4419 | if (str2_length == 0) return Smi::FromInt(str1_length); |
| 4420 | } |
| 4421 | |
| 4422 | int end = str1_length < str2_length ? str1_length : str2_length; |
| 4423 | |
| 4424 | // No need to flatten if we are going to find the answer on the first |
| 4425 | // character. At this point we know there is at least one character |
| 4426 | // in each string, due to the trivial case handling above. |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 4427 | int d = str1->Get(0) - str2->Get(0); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4428 | if (d != 0) return Smi::FromInt(d); |
| 4429 | |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 4430 | str1->TryFlatten(); |
| 4431 | str2->TryFlatten(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4432 | |
yangguo@chromium.org | 4cd70b4 | 2013-01-04 08:57:54 +0000 | [diff] [blame] | 4433 | ConsStringIteratorOp* op1 = |
| 4434 | isolate->runtime_state()->string_locale_compare_it1(); |
| 4435 | ConsStringIteratorOp* op2 = |
| 4436 | isolate->runtime_state()->string_locale_compare_it2(); |
| 4437 | // TODO(dcarney) Can do array compares here more efficiently. |
| 4438 | StringCharacterStream stream1(str1, op1); |
| 4439 | StringCharacterStream stream2(str2, op2); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4440 | |
| 4441 | for (int i = 0; i < end; i++) { |
yangguo@chromium.org | 4cd70b4 | 2013-01-04 08:57:54 +0000 | [diff] [blame] | 4442 | uint16_t char1 = stream1.GetNext(); |
| 4443 | uint16_t char2 = stream2.GetNext(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4444 | if (char1 != char2) return Smi::FromInt(char1 - char2); |
| 4445 | } |
| 4446 | |
| 4447 | return Smi::FromInt(str1_length - str2_length); |
| 4448 | } |
| 4449 | |
| 4450 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 4451 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SubString) { |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 4452 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4453 | ASSERT(args.length() == 3); |
| 4454 | |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 4455 | CONVERT_ARG_HANDLE_CHECKED(String, string, 0); |
ager@chromium.org | 6141cbe | 2009-11-20 12:14:52 +0000 | [diff] [blame] | 4456 | int start, end; |
| 4457 | // We have a fast integer-only case here to avoid a conversion to double in |
| 4458 | // the common case where from and to are Smis. |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 4459 | if (args[1]->IsSmi() && args[2]->IsSmi()) { |
| 4460 | CONVERT_SMI_ARG_CHECKED(from_number, 1); |
| 4461 | CONVERT_SMI_ARG_CHECKED(to_number, 2); |
| 4462 | start = from_number; |
| 4463 | end = to_number; |
ager@chromium.org | 6141cbe | 2009-11-20 12:14:52 +0000 | [diff] [blame] | 4464 | } else { |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 4465 | CONVERT_DOUBLE_ARG_CHECKED(from_number, 1); |
| 4466 | CONVERT_DOUBLE_ARG_CHECKED(to_number, 2); |
ulan@chromium.org | ea52b5f | 2012-07-30 13:05:33 +0000 | [diff] [blame] | 4467 | start = FastD2IChecked(from_number); |
| 4468 | end = FastD2IChecked(to_number); |
ager@chromium.org | 6141cbe | 2009-11-20 12:14:52 +0000 | [diff] [blame] | 4469 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4470 | RUNTIME_ASSERT(end >= start); |
| 4471 | RUNTIME_ASSERT(start >= 0); |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 4472 | RUNTIME_ASSERT(end <= string->length()); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4473 | isolate->counters()->sub_string_runtime()->Increment(); |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 4474 | |
| 4475 | return *isolate->factory()->NewSubString(string, start, end); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4476 | } |
| 4477 | |
| 4478 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 4479 | RUNTIME_FUNCTION(MaybeObject*, Runtime_StringMatch) { |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 4480 | HandleScope handles(isolate); |
ager@chromium.org | 41826e7 | 2009-03-30 13:30:57 +0000 | [diff] [blame] | 4481 | ASSERT_EQ(3, args.length()); |
| 4482 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 4483 | CONVERT_ARG_HANDLE_CHECKED(String, subject, 0); |
| 4484 | CONVERT_ARG_HANDLE_CHECKED(JSRegExp, regexp, 1); |
| 4485 | CONVERT_ARG_HANDLE_CHECKED(JSArray, regexp_info, 2); |
ager@chromium.org | 41826e7 | 2009-03-30 13:30:57 +0000 | [diff] [blame] | 4486 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4487 | RegExpImpl::GlobalCache global_cache(regexp, subject, true, isolate); |
| 4488 | if (global_cache.HasException()) return Failure::Exception(); |
ager@chromium.org | 41826e7 | 2009-03-30 13:30:57 +0000 | [diff] [blame] | 4489 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4490 | int capture_count = regexp->CaptureCount(); |
ager@chromium.org | 41826e7 | 2009-03-30 13:30:57 +0000 | [diff] [blame] | 4491 | |
machenbach@chromium.org | c1789ee | 2013-07-05 07:09:57 +0000 | [diff] [blame] | 4492 | ZoneScope zone_scope(isolate->runtime_zone()); |
| 4493 | ZoneList<int> offsets(8, zone_scope.zone()); |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4494 | |
| 4495 | while (true) { |
| 4496 | int32_t* match = global_cache.FetchNext(); |
| 4497 | if (match == NULL) break; |
machenbach@chromium.org | c1789ee | 2013-07-05 07:09:57 +0000 | [diff] [blame] | 4498 | offsets.Add(match[0], zone_scope.zone()); // start |
| 4499 | offsets.Add(match[1], zone_scope.zone()); // end |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4500 | } |
| 4501 | |
| 4502 | if (global_cache.HasException()) return Failure::Exception(); |
| 4503 | |
| 4504 | if (offsets.length() == 0) { |
| 4505 | // Not a single match. |
| 4506 | return isolate->heap()->null_value(); |
| 4507 | } |
| 4508 | |
| 4509 | RegExpImpl::SetLastMatchInfo(regexp_info, |
| 4510 | subject, |
| 4511 | capture_count, |
| 4512 | global_cache.LastSuccessfulMatch()); |
| 4513 | |
ager@chromium.org | 41826e7 | 2009-03-30 13:30:57 +0000 | [diff] [blame] | 4514 | int matches = offsets.length() / 2; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4515 | Handle<FixedArray> elements = isolate->factory()->NewFixedArray(matches); |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4516 | Handle<String> substring = |
| 4517 | isolate->factory()->NewSubString(subject, offsets.at(0), offsets.at(1)); |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 4518 | elements->set(0, *substring); |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4519 | for (int i = 1; i < matches; i++) { |
| 4520 | HandleScope temp_scope(isolate); |
ager@chromium.org | 41826e7 | 2009-03-30 13:30:57 +0000 | [diff] [blame] | 4521 | int from = offsets.at(i * 2); |
| 4522 | int to = offsets.at(i * 2 + 1); |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4523 | Handle<String> substring = |
| 4524 | isolate->factory()->NewProperSubString(subject, from, to); |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 4525 | elements->set(i, *substring); |
ager@chromium.org | 41826e7 | 2009-03-30 13:30:57 +0000 | [diff] [blame] | 4526 | } |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4527 | Handle<JSArray> result = isolate->factory()->NewJSArrayWithElements(elements); |
ager@chromium.org | 41826e7 | 2009-03-30 13:30:57 +0000 | [diff] [blame] | 4528 | result->set_length(Smi::FromInt(matches)); |
| 4529 | return *result; |
| 4530 | } |
| 4531 | |
| 4532 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4533 | // Only called from Runtime_RegExpExecMultiple so it doesn't need to maintain |
| 4534 | // separate last match info. See comment on that function. |
| 4535 | template<bool has_capture> |
jkummerow@chromium.org | 78502a9 | 2012-09-06 13:50:42 +0000 | [diff] [blame] | 4536 | static MaybeObject* SearchRegExpMultiple( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4537 | Isolate* isolate, |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 4538 | Handle<String> subject, |
| 4539 | Handle<JSRegExp> regexp, |
| 4540 | Handle<JSArray> last_match_array, |
jkummerow@chromium.org | 78502a9 | 2012-09-06 13:50:42 +0000 | [diff] [blame] | 4541 | Handle<JSArray> result_array) { |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 4542 | ASSERT(subject->IsFlat()); |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4543 | ASSERT_NE(has_capture, regexp->CaptureCount() == 0); |
yangguo@chromium.org | 08eb196 | 2012-08-21 11:19:20 +0000 | [diff] [blame] | 4544 | |
yangguo@chromium.org | 08eb196 | 2012-08-21 11:19:20 +0000 | [diff] [blame] | 4545 | int capture_count = regexp->CaptureCount(); |
| 4546 | int subject_length = subject->length(); |
| 4547 | |
jkummerow@chromium.org | 78502a9 | 2012-09-06 13:50:42 +0000 | [diff] [blame] | 4548 | static const int kMinLengthToCache = 0x1000; |
| 4549 | |
| 4550 | if (subject_length > kMinLengthToCache) { |
| 4551 | Handle<Object> cached_answer(RegExpResultsCache::Lookup( |
| 4552 | isolate->heap(), |
| 4553 | *subject, |
| 4554 | regexp->data(), |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 4555 | RegExpResultsCache::REGEXP_MULTIPLE_INDICES), isolate); |
jkummerow@chromium.org | 78502a9 | 2012-09-06 13:50:42 +0000 | [diff] [blame] | 4556 | if (*cached_answer != Smi::FromInt(0)) { |
| 4557 | Handle<FixedArray> cached_fixed_array = |
| 4558 | Handle<FixedArray>(FixedArray::cast(*cached_answer)); |
| 4559 | // The cache FixedArray is a COW-array and can therefore be reused. |
| 4560 | isolate->factory()->SetContent(result_array, cached_fixed_array); |
| 4561 | // The actual length of the result array is stored in the last element of |
| 4562 | // the backing store (the backing FixedArray may have a larger capacity). |
| 4563 | Object* cached_fixed_array_last_element = |
| 4564 | cached_fixed_array->get(cached_fixed_array->length() - 1); |
| 4565 | Smi* js_array_length = Smi::cast(cached_fixed_array_last_element); |
| 4566 | result_array->set_length(js_array_length); |
| 4567 | RegExpImpl::SetLastMatchInfo( |
| 4568 | last_match_array, subject, capture_count, NULL); |
| 4569 | return *result_array; |
| 4570 | } |
| 4571 | } |
| 4572 | |
| 4573 | RegExpImpl::GlobalCache global_cache(regexp, subject, true, isolate); |
| 4574 | if (global_cache.HasException()) return Failure::Exception(); |
| 4575 | |
| 4576 | Handle<FixedArray> result_elements; |
| 4577 | if (result_array->HasFastObjectElements()) { |
| 4578 | result_elements = |
| 4579 | Handle<FixedArray>(FixedArray::cast(result_array->elements())); |
| 4580 | } |
| 4581 | if (result_elements.is_null() || result_elements->length() < 16) { |
| 4582 | result_elements = isolate->factory()->NewFixedArrayWithHoles(16); |
| 4583 | } |
| 4584 | |
| 4585 | FixedArrayBuilder builder(result_elements); |
| 4586 | |
yangguo@chromium.org | 08eb196 | 2012-08-21 11:19:20 +0000 | [diff] [blame] | 4587 | // Position to search from. |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4588 | int match_start = -1; |
yangguo@chromium.org | 08eb196 | 2012-08-21 11:19:20 +0000 | [diff] [blame] | 4589 | int match_end = 0; |
| 4590 | bool first = true; |
| 4591 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4592 | // Two smis before and after the match, for very long strings. |
| 4593 | static const int kMaxBuilderEntriesPerRegExpMatch = 5; |
yangguo@chromium.org | 08eb196 | 2012-08-21 11:19:20 +0000 | [diff] [blame] | 4594 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4595 | while (true) { |
| 4596 | int32_t* current_match = global_cache.FetchNext(); |
| 4597 | if (current_match == NULL) break; |
| 4598 | match_start = current_match[0]; |
jkummerow@chromium.org | 78502a9 | 2012-09-06 13:50:42 +0000 | [diff] [blame] | 4599 | builder.EnsureCapacity(kMaxBuilderEntriesPerRegExpMatch); |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4600 | if (match_end < match_start) { |
jkummerow@chromium.org | 78502a9 | 2012-09-06 13:50:42 +0000 | [diff] [blame] | 4601 | ReplacementStringBuilder::AddSubjectSlice(&builder, |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4602 | match_end, |
| 4603 | match_start); |
| 4604 | } |
| 4605 | match_end = current_match[1]; |
| 4606 | { |
| 4607 | // Avoid accumulating new handles inside loop. |
| 4608 | HandleScope temp_scope(isolate); |
| 4609 | Handle<String> match; |
| 4610 | if (!first) { |
| 4611 | match = isolate->factory()->NewProperSubString(subject, |
| 4612 | match_start, |
| 4613 | match_end); |
| 4614 | } else { |
| 4615 | match = isolate->factory()->NewSubString(subject, |
| 4616 | match_start, |
| 4617 | match_end); |
yangguo@chromium.org | 08eb196 | 2012-08-21 11:19:20 +0000 | [diff] [blame] | 4618 | first = false; |
| 4619 | } |
| 4620 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4621 | if (has_capture) { |
| 4622 | // Arguments array to replace function is match, captures, index and |
| 4623 | // subject, i.e., 3 + capture count in total. |
| 4624 | Handle<FixedArray> elements = |
| 4625 | isolate->factory()->NewFixedArray(3 + capture_count); |
yangguo@chromium.org | 08eb196 | 2012-08-21 11:19:20 +0000 | [diff] [blame] | 4626 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4627 | elements->set(0, *match); |
| 4628 | for (int i = 1; i <= capture_count; i++) { |
| 4629 | int start = current_match[i * 2]; |
| 4630 | if (start >= 0) { |
| 4631 | int end = current_match[i * 2 + 1]; |
| 4632 | ASSERT(start <= end); |
| 4633 | Handle<String> substring = |
| 4634 | isolate->factory()->NewSubString(subject, start, end); |
| 4635 | elements->set(i, *substring); |
| 4636 | } else { |
| 4637 | ASSERT(current_match[i * 2 + 1] < 0); |
| 4638 | elements->set(i, isolate->heap()->undefined_value()); |
| 4639 | } |
yangguo@chromium.org | 08eb196 | 2012-08-21 11:19:20 +0000 | [diff] [blame] | 4640 | } |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4641 | elements->set(capture_count + 1, Smi::FromInt(match_start)); |
| 4642 | elements->set(capture_count + 2, *subject); |
jkummerow@chromium.org | 78502a9 | 2012-09-06 13:50:42 +0000 | [diff] [blame] | 4643 | builder.Add(*isolate->factory()->NewJSArrayWithElements(elements)); |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4644 | } else { |
jkummerow@chromium.org | 78502a9 | 2012-09-06 13:50:42 +0000 | [diff] [blame] | 4645 | builder.Add(*match); |
yangguo@chromium.org | 08eb196 | 2012-08-21 11:19:20 +0000 | [diff] [blame] | 4646 | } |
yangguo@chromium.org | 08eb196 | 2012-08-21 11:19:20 +0000 | [diff] [blame] | 4647 | } |
| 4648 | } |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4649 | |
jkummerow@chromium.org | 78502a9 | 2012-09-06 13:50:42 +0000 | [diff] [blame] | 4650 | if (global_cache.HasException()) return Failure::Exception(); |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4651 | |
| 4652 | if (match_start >= 0) { |
| 4653 | // Finished matching, with at least one match. |
| 4654 | if (match_end < subject_length) { |
jkummerow@chromium.org | 78502a9 | 2012-09-06 13:50:42 +0000 | [diff] [blame] | 4655 | ReplacementStringBuilder::AddSubjectSlice(&builder, |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4656 | match_end, |
| 4657 | subject_length); |
| 4658 | } |
| 4659 | |
| 4660 | RegExpImpl::SetLastMatchInfo( |
| 4661 | last_match_array, subject, capture_count, NULL); |
| 4662 | |
jkummerow@chromium.org | 78502a9 | 2012-09-06 13:50:42 +0000 | [diff] [blame] | 4663 | if (subject_length > kMinLengthToCache) { |
| 4664 | // Store the length of the result array into the last element of the |
| 4665 | // backing FixedArray. |
| 4666 | builder.EnsureCapacity(1); |
| 4667 | Handle<FixedArray> fixed_array = builder.array(); |
| 4668 | fixed_array->set(fixed_array->length() - 1, |
| 4669 | Smi::FromInt(builder.length())); |
| 4670 | // Cache the result and turn the FixedArray into a COW array. |
| 4671 | RegExpResultsCache::Enter(isolate->heap(), |
| 4672 | *subject, |
| 4673 | regexp->data(), |
| 4674 | *fixed_array, |
| 4675 | RegExpResultsCache::REGEXP_MULTIPLE_INDICES); |
| 4676 | } |
| 4677 | return *builder.ToJSArray(result_array); |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4678 | } else { |
jkummerow@chromium.org | 78502a9 | 2012-09-06 13:50:42 +0000 | [diff] [blame] | 4679 | return isolate->heap()->null_value(); // No matches at all. |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 4680 | } |
yangguo@chromium.org | 08eb196 | 2012-08-21 11:19:20 +0000 | [diff] [blame] | 4681 | } |
| 4682 | |
| 4683 | |
yangguo@chromium.org | efdb9d7 | 2012-04-26 08:21:05 +0000 | [diff] [blame] | 4684 | // This is only called for StringReplaceGlobalRegExpWithFunction. This sets |
| 4685 | // lastMatchInfoOverride to maintain the last match info, so we don't need to |
| 4686 | // set any other last match array info. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 4687 | RUNTIME_FUNCTION(MaybeObject*, Runtime_RegExpExecMultiple) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4688 | HandleScope handles(isolate); |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 4689 | ASSERT(args.length() == 4); |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 4690 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 4691 | CONVERT_ARG_HANDLE_CHECKED(String, subject, 1); |
ricow@chromium.org | 4668a2c | 2011-08-29 10:41:00 +0000 | [diff] [blame] | 4692 | if (!subject->IsFlat()) FlattenString(subject); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 4693 | CONVERT_ARG_HANDLE_CHECKED(JSRegExp, regexp, 0); |
| 4694 | CONVERT_ARG_HANDLE_CHECKED(JSArray, last_match_info, 2); |
| 4695 | CONVERT_ARG_HANDLE_CHECKED(JSArray, result_array, 3); |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 4696 | |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 4697 | ASSERT(regexp->GetFlags().is_global()); |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 4698 | |
yangguo@chromium.org | 08eb196 | 2012-08-21 11:19:20 +0000 | [diff] [blame] | 4699 | if (regexp->CaptureCount() == 0) { |
jkummerow@chromium.org | 78502a9 | 2012-09-06 13:50:42 +0000 | [diff] [blame] | 4700 | return SearchRegExpMultiple<false>( |
| 4701 | isolate, subject, regexp, last_match_info, result_array); |
yangguo@chromium.org | 08eb196 | 2012-08-21 11:19:20 +0000 | [diff] [blame] | 4702 | } else { |
jkummerow@chromium.org | 78502a9 | 2012-09-06 13:50:42 +0000 | [diff] [blame] | 4703 | return SearchRegExpMultiple<true>( |
| 4704 | isolate, subject, regexp, last_match_info, result_array); |
yangguo@chromium.org | 08eb196 | 2012-08-21 11:19:20 +0000 | [diff] [blame] | 4705 | } |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 4706 | } |
| 4707 | |
| 4708 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 4709 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberToRadixString) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 4710 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4711 | ASSERT(args.length() == 2); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 4712 | CONVERT_SMI_ARG_CHECKED(radix, 1); |
ricow@chromium.org | c54d365 | 2011-05-30 09:20:16 +0000 | [diff] [blame] | 4713 | RUNTIME_ASSERT(2 <= radix && radix <= 36); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4714 | |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 4715 | // Fast case where the result is a one character string. |
ricow@chromium.org | c54d365 | 2011-05-30 09:20:16 +0000 | [diff] [blame] | 4716 | if (args[0]->IsSmi()) { |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 4717 | int value = args.smi_at(0); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 4718 | if (value >= 0 && value < radix) { |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 4719 | // Character array used for conversion. |
| 4720 | static const char kCharTable[] = "0123456789abcdefghijklmnopqrstuvwxyz"; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4721 | return isolate->heap()-> |
| 4722 | LookupSingleCharacterStringFromCode(kCharTable[value]); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 4723 | } |
| 4724 | } |
| 4725 | |
| 4726 | // Slow case. |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 4727 | CONVERT_DOUBLE_ARG_CHECKED(value, 0); |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 4728 | if (std::isnan(value)) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 4729 | return *isolate->factory()->nan_string(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4730 | } |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 4731 | if (std::isinf(value)) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4732 | if (value < 0) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 4733 | return *isolate->factory()->minus_infinity_string(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4734 | } |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 4735 | return *isolate->factory()->infinity_string(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4736 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4737 | char* str = DoubleToRadixCString(value, radix); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4738 | MaybeObject* result = |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 4739 | isolate->heap()->AllocateStringFromOneByte(CStrVector(str)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4740 | DeleteArray(str); |
| 4741 | return result; |
| 4742 | } |
| 4743 | |
| 4744 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 4745 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberToFixed) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 4746 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4747 | ASSERT(args.length() == 2); |
| 4748 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 4749 | CONVERT_DOUBLE_ARG_CHECKED(value, 0); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 4750 | CONVERT_DOUBLE_ARG_CHECKED(f_number, 1); |
ulan@chromium.org | ea52b5f | 2012-07-30 13:05:33 +0000 | [diff] [blame] | 4751 | int f = FastD2IChecked(f_number); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4752 | RUNTIME_ASSERT(f >= 0); |
| 4753 | char* str = DoubleToFixedCString(value, f); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4754 | MaybeObject* res = |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 4755 | isolate->heap()->AllocateStringFromOneByte(CStrVector(str)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4756 | DeleteArray(str); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4757 | return res; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4758 | } |
| 4759 | |
| 4760 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 4761 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberToExponential) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 4762 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4763 | ASSERT(args.length() == 2); |
| 4764 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 4765 | CONVERT_DOUBLE_ARG_CHECKED(value, 0); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 4766 | CONVERT_DOUBLE_ARG_CHECKED(f_number, 1); |
ulan@chromium.org | ea52b5f | 2012-07-30 13:05:33 +0000 | [diff] [blame] | 4767 | int f = FastD2IChecked(f_number); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4768 | RUNTIME_ASSERT(f >= -1 && f <= 20); |
| 4769 | char* str = DoubleToExponentialCString(value, f); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4770 | MaybeObject* res = |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 4771 | isolate->heap()->AllocateStringFromOneByte(CStrVector(str)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4772 | DeleteArray(str); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4773 | return res; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4774 | } |
| 4775 | |
| 4776 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 4777 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberToPrecision) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 4778 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4779 | ASSERT(args.length() == 2); |
| 4780 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 4781 | CONVERT_DOUBLE_ARG_CHECKED(value, 0); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 4782 | CONVERT_DOUBLE_ARG_CHECKED(f_number, 1); |
ulan@chromium.org | ea52b5f | 2012-07-30 13:05:33 +0000 | [diff] [blame] | 4783 | int f = FastD2IChecked(f_number); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4784 | RUNTIME_ASSERT(f >= 1 && f <= 21); |
| 4785 | char* str = DoubleToPrecisionCString(value, f); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4786 | MaybeObject* res = |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 4787 | isolate->heap()->AllocateStringFromOneByte(CStrVector(str)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4788 | DeleteArray(str); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4789 | return res; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4790 | } |
| 4791 | |
| 4792 | |
verwaest@chromium.org | 662436e | 2013-08-28 08:41:27 +0000 | [diff] [blame] | 4793 | RUNTIME_FUNCTION(MaybeObject*, Runtime_IsValidSmi) { |
| 4794 | HandleScope shs(isolate); |
| 4795 | ASSERT(args.length() == 1); |
| 4796 | |
| 4797 | CONVERT_NUMBER_CHECKED(int32_t, number, Int32, args[0]); |
| 4798 | if (Smi::IsValid(number)) { |
| 4799 | return isolate->heap()->true_value(); |
| 4800 | } else { |
| 4801 | return isolate->heap()->false_value(); |
| 4802 | } |
| 4803 | } |
| 4804 | |
| 4805 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4806 | // Returns a single character string where first character equals |
| 4807 | // string->Get(index). |
mads.s.ager@gmail.com | 9a4089a | 2008-09-01 08:55:01 +0000 | [diff] [blame] | 4808 | static Handle<Object> GetCharAt(Handle<String> string, uint32_t index) { |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 4809 | if (index < static_cast<uint32_t>(string->length())) { |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 4810 | string->TryFlatten(); |
ager@chromium.org | 870a0b6 | 2008-11-04 11:43:05 +0000 | [diff] [blame] | 4811 | return LookupSingleCharacterStringFromCode( |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 4812 | string->GetIsolate(), |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 4813 | string->Get(index)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4814 | } |
mads.s.ager@gmail.com | 9a4089a | 2008-09-01 08:55:01 +0000 | [diff] [blame] | 4815 | return Execution::CharAt(string, index); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4816 | } |
| 4817 | |
| 4818 | |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 4819 | MaybeObject* Runtime::GetElementOrCharAtOrFail(Isolate* isolate, |
| 4820 | Handle<Object> object, |
| 4821 | uint32_t index) { |
| 4822 | CALL_HEAP_FUNCTION_PASS_EXCEPTION(isolate, |
| 4823 | GetElementOrCharAt(isolate, object, index)); |
| 4824 | } |
| 4825 | |
| 4826 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4827 | MaybeObject* Runtime::GetElementOrCharAt(Isolate* isolate, |
| 4828 | Handle<Object> object, |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 4829 | uint32_t index) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4830 | // Handle [] indexing on Strings |
| 4831 | if (object->IsString()) { |
mads.s.ager@gmail.com | 9a4089a | 2008-09-01 08:55:01 +0000 | [diff] [blame] | 4832 | Handle<Object> result = GetCharAt(Handle<String>::cast(object), index); |
| 4833 | if (!result->IsUndefined()) return *result; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4834 | } |
| 4835 | |
| 4836 | // Handle [] indexing on String objects |
| 4837 | if (object->IsStringObjectWithCharacterAt(index)) { |
mads.s.ager@gmail.com | 9a4089a | 2008-09-01 08:55:01 +0000 | [diff] [blame] | 4838 | Handle<JSValue> js_value = Handle<JSValue>::cast(object); |
| 4839 | Handle<Object> result = |
| 4840 | GetCharAt(Handle<String>(String::cast(js_value->value())), index); |
| 4841 | if (!result->IsUndefined()) return *result; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4842 | } |
| 4843 | |
| 4844 | if (object->IsString() || object->IsNumber() || object->IsBoolean()) { |
jkummerow@chromium.org | 3d00d0a | 2013-09-04 13:57:32 +0000 | [diff] [blame] | 4845 | return object->GetPrototype(isolate)->GetElement(isolate, index); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4846 | } |
| 4847 | |
jkummerow@chromium.org | 3d00d0a | 2013-09-04 13:57:32 +0000 | [diff] [blame] | 4848 | return object->GetElement(isolate, index); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4849 | } |
| 4850 | |
| 4851 | |
machenbach@chromium.org | 0cc0950 | 2013-11-13 12:20:55 +0000 | [diff] [blame] | 4852 | static Handle<Name> ToName(Isolate* isolate, Handle<Object> key) { |
| 4853 | if (key->IsName()) { |
| 4854 | return Handle<Name>::cast(key); |
| 4855 | } else { |
| 4856 | bool has_pending_exception = false; |
| 4857 | Handle<Object> converted = |
| 4858 | Execution::ToString(isolate, key, &has_pending_exception); |
| 4859 | if (has_pending_exception) return Handle<Name>(); |
| 4860 | return Handle<Name>::cast(converted); |
| 4861 | } |
| 4862 | } |
| 4863 | |
| 4864 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 4865 | MaybeObject* Runtime::HasObjectProperty(Isolate* isolate, |
| 4866 | Handle<JSReceiver> object, |
| 4867 | Handle<Object> key) { |
| 4868 | HandleScope scope(isolate); |
| 4869 | |
| 4870 | // Check if the given key is an array index. |
| 4871 | uint32_t index; |
| 4872 | if (key->ToArrayIndex(&index)) { |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 4873 | return isolate->heap()->ToBoolean(JSReceiver::HasElement(object, index)); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 4874 | } |
| 4875 | |
| 4876 | // Convert the key to a name - possibly by calling back into JavaScript. |
machenbach@chromium.org | 0cc0950 | 2013-11-13 12:20:55 +0000 | [diff] [blame] | 4877 | Handle<Name> name = ToName(isolate, key); |
| 4878 | RETURN_IF_EMPTY_HANDLE(isolate, name); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 4879 | |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 4880 | return isolate->heap()->ToBoolean(JSReceiver::HasProperty(object, name)); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 4881 | } |
| 4882 | |
mstarzinger@chromium.org | b228be0 | 2013-04-18 14:56:59 +0000 | [diff] [blame] | 4883 | MaybeObject* Runtime::GetObjectPropertyOrFail( |
| 4884 | Isolate* isolate, |
| 4885 | Handle<Object> object, |
| 4886 | Handle<Object> key) { |
| 4887 | CALL_HEAP_FUNCTION_PASS_EXCEPTION(isolate, |
| 4888 | GetObjectProperty(isolate, object, key)); |
| 4889 | } |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 4890 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4891 | MaybeObject* Runtime::GetObjectProperty(Isolate* isolate, |
| 4892 | Handle<Object> object, |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 4893 | Handle<Object> key) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4894 | HandleScope scope(isolate); |
mads.s.ager@gmail.com | 9a4089a | 2008-09-01 08:55:01 +0000 | [diff] [blame] | 4895 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4896 | if (object->IsUndefined() || object->IsNull()) { |
mads.s.ager@gmail.com | 9a4089a | 2008-09-01 08:55:01 +0000 | [diff] [blame] | 4897 | Handle<Object> args[2] = { key, object }; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4898 | Handle<Object> error = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4899 | isolate->factory()->NewTypeError("non_object_property_load", |
| 4900 | HandleVector(args, 2)); |
| 4901 | return isolate->Throw(*error); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4902 | } |
| 4903 | |
| 4904 | // Check if the given key is an array index. |
| 4905 | uint32_t index; |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 4906 | if (key->ToArrayIndex(&index)) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4907 | return GetElementOrCharAt(isolate, object, index); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4908 | } |
| 4909 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 4910 | // Convert the key to a name - possibly by calling back into JavaScript. |
machenbach@chromium.org | 0cc0950 | 2013-11-13 12:20:55 +0000 | [diff] [blame] | 4911 | Handle<Name> name = ToName(isolate, key); |
| 4912 | RETURN_IF_EMPTY_HANDLE(isolate, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4913 | |
ager@chromium.org | 3291210 | 2009-01-16 10:38:43 +0000 | [diff] [blame] | 4914 | // Check if the name is trivially convertible to an index and get |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4915 | // the element if so. |
| 4916 | if (name->AsArrayIndex(&index)) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4917 | return GetElementOrCharAt(isolate, object, index); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4918 | } else { |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 4919 | return object->GetProperty(*name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4920 | } |
| 4921 | } |
| 4922 | |
| 4923 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 4924 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetProperty) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 4925 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4926 | ASSERT(args.length() == 2); |
| 4927 | |
| 4928 | Handle<Object> object = args.at<Object>(0); |
mads.s.ager@gmail.com | 9a4089a | 2008-09-01 08:55:01 +0000 | [diff] [blame] | 4929 | Handle<Object> key = args.at<Object>(1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4930 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 4931 | return Runtime::GetObjectProperty(isolate, object, key); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 4932 | } |
| 4933 | |
| 4934 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 4935 | // KeyedGetProperty is called from KeyedLoadIC::GenerateGeneric. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 4936 | RUNTIME_FUNCTION(MaybeObject*, Runtime_KeyedGetProperty) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 4937 | SealHandleScope shs(isolate); |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 4938 | ASSERT(args.length() == 2); |
| 4939 | |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 4940 | // Fast cases for getting named properties of the receiver JSObject |
ager@chromium.org | 8bb6058 | 2008-12-11 12:02:20 +0000 | [diff] [blame] | 4941 | // itself. |
| 4942 | // |
| 4943 | // The global proxy objects has to be excluded since LocalLookup on |
ager@chromium.org | 3291210 | 2009-01-16 10:38:43 +0000 | [diff] [blame] | 4944 | // the global proxy object can return a valid result even though the |
ager@chromium.org | 8bb6058 | 2008-12-11 12:02:20 +0000 | [diff] [blame] | 4945 | // global proxy object never has properties. This is the case |
| 4946 | // because the global proxy object forwards everything to its hidden |
| 4947 | // prototype including local lookups. |
| 4948 | // |
| 4949 | // Additionally, we need to make sure that we do not cache results |
| 4950 | // for objects that require access checks. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 4951 | if (args[0]->IsJSObject()) { |
| 4952 | if (!args[0]->IsJSGlobalProxy() && |
| 4953 | !args[0]->IsAccessCheckNeeded() && |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 4954 | args[1]->IsName()) { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 4955 | JSObject* receiver = JSObject::cast(args[0]); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 4956 | Name* key = Name::cast(args[1]); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 4957 | if (receiver->HasFastProperties()) { |
| 4958 | // Attempt to use lookup cache. |
| 4959 | Map* receiver_map = receiver->map(); |
| 4960 | KeyedLookupCache* keyed_lookup_cache = isolate->keyed_lookup_cache(); |
| 4961 | int offset = keyed_lookup_cache->Lookup(receiver_map, key); |
| 4962 | if (offset != -1) { |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 4963 | // Doubles are not cached, so raw read the value. |
| 4964 | Object* value = receiver->RawFastPropertyAt(offset); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 4965 | return value->IsTheHole() |
| 4966 | ? isolate->heap()->undefined_value() |
| 4967 | : value; |
| 4968 | } |
| 4969 | // Lookup cache miss. Perform lookup and update the cache if |
| 4970 | // appropriate. |
| 4971 | LookupResult result(isolate); |
| 4972 | receiver->LocalLookup(key, &result); |
yangguo@chromium.org | de0db00 | 2012-06-22 13:44:28 +0000 | [diff] [blame] | 4973 | if (result.IsField()) { |
yangguo@chromium.org | eeb44b6 | 2012-11-13 13:56:09 +0000 | [diff] [blame] | 4974 | int offset = result.GetFieldIndex().field_index(); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 4975 | // Do not track double fields in the keyed lookup cache. Reading |
| 4976 | // double values requires boxing. |
| 4977 | if (!FLAG_track_double_fields || |
| 4978 | !result.representation().IsDouble()) { |
| 4979 | keyed_lookup_cache->Update(receiver_map, key, offset); |
| 4980 | } |
| 4981 | return receiver->FastPropertyAt(result.representation(), offset); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 4982 | } |
| 4983 | } else { |
| 4984 | // Attempt dictionary lookup. |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 4985 | NameDictionary* dictionary = receiver->property_dictionary(); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 4986 | int entry = dictionary->FindEntry(key); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 4987 | if ((entry != NameDictionary::kNotFound) && |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 4988 | (dictionary->DetailsAt(entry).type() == NORMAL)) { |
| 4989 | Object* value = dictionary->ValueAt(entry); |
| 4990 | if (!receiver->IsGlobalObject()) return value; |
dslomov@chromium.org | b752d40 | 2013-06-18 11:54:54 +0000 | [diff] [blame] | 4991 | value = PropertyCell::cast(value)->value(); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 4992 | if (!value->IsTheHole()) return value; |
| 4993 | // If value is the hole do the general lookup. |
| 4994 | } |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 4995 | } |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 4996 | } else if (FLAG_smi_only_arrays && args.at<Object>(1)->IsSmi()) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 4997 | // JSObject without a name key. If the key is a Smi, check for a |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 4998 | // definite out-of-bounds access to elements, which is a strong indicator |
| 4999 | // that subsequent accesses will also call the runtime. Proactively |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 5000 | // transition elements to FAST_*_ELEMENTS to avoid excessive boxing of |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 5001 | // doubles for those future calls in the case that the elements would |
| 5002 | // become FAST_DOUBLE_ELEMENTS. |
| 5003 | Handle<JSObject> js_object(args.at<JSObject>(0)); |
| 5004 | ElementsKind elements_kind = js_object->GetElementsKind(); |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 5005 | if (IsFastDoubleElementsKind(elements_kind)) { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 5006 | FixedArrayBase* elements = js_object->elements(); |
| 5007 | if (args.at<Smi>(1)->value() >= elements->length()) { |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 5008 | if (IsFastHoleyElementsKind(elements_kind)) { |
| 5009 | elements_kind = FAST_HOLEY_ELEMENTS; |
| 5010 | } else { |
| 5011 | elements_kind = FAST_ELEMENTS; |
| 5012 | } |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 5013 | MaybeObject* maybe_object = TransitionElements(js_object, |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 5014 | elements_kind, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 5015 | isolate); |
| 5016 | if (maybe_object->IsFailure()) return maybe_object; |
| 5017 | } |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 5018 | } else { |
| 5019 | ASSERT(IsFastSmiOrObjectElementsKind(elements_kind) || |
| 5020 | !IsFastElementsKind(elements_kind)); |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 5021 | } |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 5022 | } |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 5023 | } else if (args[0]->IsString() && args[1]->IsSmi()) { |
| 5024 | // Fast case for string indexing using [] with a smi index. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5025 | HandleScope scope(isolate); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 5026 | Handle<String> str = args.at<String>(0); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 5027 | int index = args.smi_at(1); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 5028 | if (index >= 0 && index < str->length()) { |
| 5029 | Handle<Object> result = GetCharAt(str, index); |
| 5030 | return *result; |
| 5031 | } |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 5032 | } |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 5033 | |
| 5034 | // Fall back to GetObjectProperty. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5035 | return Runtime::GetObjectProperty(isolate, |
| 5036 | args.at<Object>(0), |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 5037 | args.at<Object>(1)); |
| 5038 | } |
| 5039 | |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 5040 | |
| 5041 | static bool IsValidAccessor(Handle<Object> obj) { |
| 5042 | return obj->IsUndefined() || obj->IsSpecFunction() || obj->IsNull(); |
| 5043 | } |
| 5044 | |
| 5045 | |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 5046 | // Implements part of 8.12.9 DefineOwnProperty. |
| 5047 | // There are 3 cases that lead here: |
| 5048 | // Step 4b - define a new accessor property. |
| 5049 | // Steps 9c & 12 - replace an existing data property with an accessor property. |
| 5050 | // Step 12 - update an existing accessor property with an accessor or generic |
| 5051 | // descriptor. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 5052 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DefineOrRedefineAccessorProperty) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5053 | HandleScope scope(isolate); |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 5054 | ASSERT(args.length() == 5); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 5055 | CONVERT_ARG_HANDLE_CHECKED(JSObject, obj, 0); |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 5056 | RUNTIME_ASSERT(!obj->IsNull()); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 5057 | CONVERT_ARG_HANDLE_CHECKED(Name, name, 1); |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 5058 | CONVERT_ARG_HANDLE_CHECKED(Object, getter, 2); |
| 5059 | RUNTIME_ASSERT(IsValidAccessor(getter)); |
| 5060 | CONVERT_ARG_HANDLE_CHECKED(Object, setter, 3); |
| 5061 | RUNTIME_ASSERT(IsValidAccessor(setter)); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 5062 | CONVERT_SMI_ARG_CHECKED(unchecked, 4); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 5063 | RUNTIME_ASSERT((unchecked & ~(READ_ONLY | DONT_ENUM | DONT_DELETE)) == 0); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 5064 | PropertyAttributes attr = static_cast<PropertyAttributes>(unchecked); |
ricow@chromium.org | 7ad6522 | 2011-12-19 12:13:11 +0000 | [diff] [blame] | 5065 | |
danno@chromium.org | 88aa058 | 2012-03-23 15:11:57 +0000 | [diff] [blame] | 5066 | bool fast = obj->HasFastProperties(); |
| 5067 | JSObject::DefineAccessor(obj, name, getter, setter, attr); |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 5068 | RETURN_IF_SCHEDULED_EXCEPTION(isolate); |
danno@chromium.org | 88aa058 | 2012-03-23 15:11:57 +0000 | [diff] [blame] | 5069 | if (fast) JSObject::TransformToFastProperties(obj, 0); |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 5070 | return isolate->heap()->undefined_value(); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 5071 | } |
| 5072 | |
mstarzinger@chromium.org | e0e1b0d | 2013-07-08 08:38:06 +0000 | [diff] [blame] | 5073 | |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 5074 | // Implements part of 8.12.9 DefineOwnProperty. |
| 5075 | // There are 3 cases that lead here: |
| 5076 | // Step 4a - define a new data property. |
| 5077 | // Steps 9b & 12 - replace an existing accessor property with a data property. |
| 5078 | // Step 12 - update an existing data property with a data or generic |
| 5079 | // descriptor. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 5080 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DefineOrRedefineDataProperty) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5081 | HandleScope scope(isolate); |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 5082 | ASSERT(args.length() == 4); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 5083 | CONVERT_ARG_HANDLE_CHECKED(JSObject, js_object, 0); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 5084 | CONVERT_ARG_HANDLE_CHECKED(Name, name, 1); |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 5085 | CONVERT_ARG_HANDLE_CHECKED(Object, obj_value, 2); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 5086 | CONVERT_SMI_ARG_CHECKED(unchecked, 3); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 5087 | RUNTIME_ASSERT((unchecked & ~(READ_ONLY | DONT_ENUM | DONT_DELETE)) == 0); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 5088 | PropertyAttributes attr = static_cast<PropertyAttributes>(unchecked); |
| 5089 | |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5090 | LookupResult lookup(isolate); |
| 5091 | js_object->LocalLookupRealNamedProperty(*name, &lookup); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 5092 | |
danno@chromium.org | e78f9fc | 2011-12-21 08:29:34 +0000 | [diff] [blame] | 5093 | // Special case for callback properties. |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5094 | if (lookup.IsPropertyCallbacks()) { |
| 5095 | Handle<Object> callback(lookup.GetCallbackObject(), isolate); |
danno@chromium.org | e78f9fc | 2011-12-21 08:29:34 +0000 | [diff] [blame] | 5096 | // To be compatible with Safari we do not change the value on API objects |
| 5097 | // in Object.defineProperty(). Firefox disagrees here, and actually changes |
| 5098 | // the value. |
| 5099 | if (callback->IsAccessorInfo()) { |
| 5100 | return isolate->heap()->undefined_value(); |
| 5101 | } |
| 5102 | // Avoid redefining foreign callback as data property, just use the stored |
| 5103 | // setter to update the value instead. |
| 5104 | // TODO(mstarzinger): So far this only works if property attributes don't |
| 5105 | // change, this should be fixed once we cleanup the underlying code. |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5106 | if (callback->IsForeign() && lookup.GetAttributes() == attr) { |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 5107 | Handle<Object> result_object = |
| 5108 | JSObject::SetPropertyWithCallback(js_object, |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5109 | callback, |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 5110 | name, |
| 5111 | obj_value, |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5112 | handle(lookup.holder()), |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 5113 | kStrictMode); |
| 5114 | RETURN_IF_EMPTY_HANDLE(isolate, result_object); |
| 5115 | return *result_object; |
danno@chromium.org | e78f9fc | 2011-12-21 08:29:34 +0000 | [diff] [blame] | 5116 | } |
ricow@chromium.org | f5a18a2 | 2011-03-15 10:00:20 +0000 | [diff] [blame] | 5117 | } |
| 5118 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 5119 | // Take special care when attributes are different and there is already |
| 5120 | // a property. For simplicity we normalize the property which enables us |
| 5121 | // to not worry about changing the instance_descriptor and creating a new |
| 5122 | // map. The current version of SetObjectProperty does not handle attributes |
| 5123 | // correctly in the case where a property is a field and is reset with |
| 5124 | // new attributes. |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5125 | if (lookup.IsFound() && |
| 5126 | (attr != lookup.GetAttributes() || lookup.IsPropertyCallbacks())) { |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 5127 | // New attributes - normalize to avoid writing to instance descriptor |
erik.corry@gmail.com | d91075f | 2011-02-10 07:45:38 +0000 | [diff] [blame] | 5128 | if (js_object->IsJSGlobalProxy()) { |
| 5129 | // Since the result is a property, the prototype will exist so |
| 5130 | // we don't have to check for null. |
| 5131 | js_object = Handle<JSObject>(JSObject::cast(js_object->GetPrototype())); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 5132 | } |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 5133 | JSObject::NormalizeProperties(js_object, CLEAR_INOBJECT_PROPERTIES, 0); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 5134 | // Use IgnoreAttributes version since a readonly property may be |
| 5135 | // overridden and SetProperty does not allow this. |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 5136 | Handle<Object> result = JSObject::SetLocalPropertyIgnoreAttributes( |
| 5137 | js_object, name, obj_value, attr); |
| 5138 | RETURN_IF_EMPTY_HANDLE(isolate, result); |
| 5139 | return *result; |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 5140 | } |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 5141 | |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5142 | Handle<Object> result = Runtime::ForceSetObjectProperty(isolate, js_object, |
| 5143 | name, |
| 5144 | obj_value, |
| 5145 | attr); |
| 5146 | RETURN_IF_EMPTY_HANDLE(isolate, result); |
| 5147 | return *result; |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 5148 | } |
| 5149 | |
| 5150 | |
mvstanton@chromium.org | e4ac3ef | 2012-11-12 14:53:34 +0000 | [diff] [blame] | 5151 | // Return property without being observable by accessors or interceptors. |
| 5152 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetDataProperty) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 5153 | SealHandleScope shs(isolate); |
mvstanton@chromium.org | e4ac3ef | 2012-11-12 14:53:34 +0000 | [diff] [blame] | 5154 | ASSERT(args.length() == 2); |
| 5155 | CONVERT_ARG_HANDLE_CHECKED(JSObject, object, 0); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 5156 | CONVERT_ARG_HANDLE_CHECKED(Name, key, 1); |
mvstanton@chromium.org | e4ac3ef | 2012-11-12 14:53:34 +0000 | [diff] [blame] | 5157 | LookupResult lookup(isolate); |
| 5158 | object->LookupRealNamedProperty(*key, &lookup); |
| 5159 | if (!lookup.IsFound()) return isolate->heap()->undefined_value(); |
| 5160 | switch (lookup.type()) { |
| 5161 | case NORMAL: |
| 5162 | return lookup.holder()->GetNormalizedProperty(&lookup); |
| 5163 | case FIELD: |
yangguo@chromium.org | eeb44b6 | 2012-11-13 13:56:09 +0000 | [diff] [blame] | 5164 | return lookup.holder()->FastPropertyAt( |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 5165 | lookup.representation(), |
yangguo@chromium.org | eeb44b6 | 2012-11-13 13:56:09 +0000 | [diff] [blame] | 5166 | lookup.GetFieldIndex().field_index()); |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 5167 | case CONSTANT: |
| 5168 | return lookup.GetConstant(); |
mvstanton@chromium.org | e4ac3ef | 2012-11-12 14:53:34 +0000 | [diff] [blame] | 5169 | case CALLBACKS: |
| 5170 | case HANDLER: |
| 5171 | case INTERCEPTOR: |
| 5172 | case TRANSITION: |
| 5173 | return isolate->heap()->undefined_value(); |
| 5174 | case NONEXISTENT: |
| 5175 | UNREACHABLE(); |
| 5176 | } |
| 5177 | return isolate->heap()->undefined_value(); |
| 5178 | } |
| 5179 | |
| 5180 | |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5181 | Handle<Object> Runtime::SetObjectProperty(Isolate* isolate, |
| 5182 | Handle<Object> object, |
| 5183 | Handle<Object> key, |
| 5184 | Handle<Object> value, |
| 5185 | PropertyAttributes attr, |
| 5186 | StrictModeFlag strict_mode) { |
yangguo@chromium.org | ab30bb8 | 2012-02-24 14:41:46 +0000 | [diff] [blame] | 5187 | SetPropertyMode set_mode = attr == NONE ? SET_PROPERTY : DEFINE_PROPERTY; |
mads.s.ager@gmail.com | 9a4089a | 2008-09-01 08:55:01 +0000 | [diff] [blame] | 5188 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5189 | if (object->IsUndefined() || object->IsNull()) { |
mads.s.ager@gmail.com | 9a4089a | 2008-09-01 08:55:01 +0000 | [diff] [blame] | 5190 | Handle<Object> args[2] = { key, object }; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5191 | Handle<Object> error = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5192 | isolate->factory()->NewTypeError("non_object_property_store", |
| 5193 | HandleVector(args, 2)); |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5194 | isolate->Throw(*error); |
| 5195 | return Handle<Object>(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5196 | } |
| 5197 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 5198 | if (object->IsJSProxy()) { |
| 5199 | bool has_pending_exception = false; |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 5200 | Handle<Object> name_object = key->IsSymbol() |
mstarzinger@chromium.org | e900018 | 2013-09-03 11:25:39 +0000 | [diff] [blame] | 5201 | ? key : Execution::ToString(isolate, key, &has_pending_exception); |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5202 | if (has_pending_exception) return Handle<Object>(); // exception |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 5203 | Handle<Name> name = Handle<Name>::cast(name_object); |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5204 | return JSReceiver::SetProperty(Handle<JSProxy>::cast(object), name, value, |
| 5205 | attr, |
| 5206 | strict_mode); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 5207 | } |
| 5208 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5209 | // If the object isn't a JavaScript object, we ignore the store. |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5210 | if (!object->IsJSObject()) return value; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5211 | |
mads.s.ager@gmail.com | 9a4089a | 2008-09-01 08:55:01 +0000 | [diff] [blame] | 5212 | Handle<JSObject> js_object = Handle<JSObject>::cast(object); |
| 5213 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5214 | // Check if the given key is an array index. |
| 5215 | uint32_t index; |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 5216 | if (key->ToArrayIndex(&index)) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5217 | // In Firefox/SpiderMonkey, Safari and Opera you can access the characters |
| 5218 | // of a string using [] notation. We need to support this too in |
| 5219 | // JavaScript. |
| 5220 | // In the case of a String object we just need to redirect the assignment to |
| 5221 | // the underlying string if the index is in range. Since the underlying |
| 5222 | // string does nothing with the assignment then we can ignore such |
| 5223 | // assignments. |
mads.s.ager@gmail.com | 9a4089a | 2008-09-01 08:55:01 +0000 | [diff] [blame] | 5224 | if (js_object->IsStringObjectWithCharacterAt(index)) { |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5225 | return value; |
mads.s.ager@gmail.com | 9a4089a | 2008-09-01 08:55:01 +0000 | [diff] [blame] | 5226 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5227 | |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 5228 | js_object->ValidateElements(); |
dslomov@chromium.org | b752d40 | 2013-06-18 11:54:54 +0000 | [diff] [blame] | 5229 | if (js_object->HasExternalArrayElements()) { |
| 5230 | if (!value->IsNumber() && !value->IsUndefined()) { |
| 5231 | bool has_exception; |
mstarzinger@chromium.org | e900018 | 2013-09-03 11:25:39 +0000 | [diff] [blame] | 5232 | Handle<Object> number = |
| 5233 | Execution::ToNumber(isolate, value, &has_exception); |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5234 | if (has_exception) return Handle<Object>(); // exception |
dslomov@chromium.org | b752d40 | 2013-06-18 11:54:54 +0000 | [diff] [blame] | 5235 | value = number; |
| 5236 | } |
| 5237 | } |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5238 | Handle<Object> result = JSObject::SetElement(js_object, index, value, attr, |
| 5239 | strict_mode, |
| 5240 | true, |
| 5241 | set_mode); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 5242 | js_object->ValidateElements(); |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5243 | return result.is_null() ? result : value; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5244 | } |
| 5245 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 5246 | if (key->IsName()) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 5247 | Handle<Name> name = Handle<Name>::cast(key); |
| 5248 | if (name->AsArrayIndex(&index)) { |
dslomov@chromium.org | b752d40 | 2013-06-18 11:54:54 +0000 | [diff] [blame] | 5249 | if (js_object->HasExternalArrayElements()) { |
| 5250 | if (!value->IsNumber() && !value->IsUndefined()) { |
| 5251 | bool has_exception; |
mstarzinger@chromium.org | e900018 | 2013-09-03 11:25:39 +0000 | [diff] [blame] | 5252 | Handle<Object> number = |
| 5253 | Execution::ToNumber(isolate, value, &has_exception); |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5254 | if (has_exception) return Handle<Object>(); // exception |
dslomov@chromium.org | b752d40 | 2013-06-18 11:54:54 +0000 | [diff] [blame] | 5255 | value = number; |
| 5256 | } |
| 5257 | } |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5258 | return JSObject::SetElement(js_object, index, value, attr, strict_mode, |
| 5259 | true, |
| 5260 | set_mode); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5261 | } else { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 5262 | if (name->IsString()) Handle<String>::cast(name)->TryFlatten(); |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5263 | return JSReceiver::SetProperty(js_object, name, value, attr, strict_mode); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5264 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5265 | } |
| 5266 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5267 | // Call-back into JavaScript to convert the key to a string. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5268 | bool has_pending_exception = false; |
mstarzinger@chromium.org | e900018 | 2013-09-03 11:25:39 +0000 | [diff] [blame] | 5269 | Handle<Object> converted = |
| 5270 | Execution::ToString(isolate, key, &has_pending_exception); |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5271 | if (has_pending_exception) return Handle<Object>(); // exception |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5272 | Handle<String> name = Handle<String>::cast(converted); |
| 5273 | |
| 5274 | if (name->AsArrayIndex(&index)) { |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5275 | return JSObject::SetElement(js_object, index, value, attr, strict_mode, |
| 5276 | true, |
| 5277 | set_mode); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5278 | } else { |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5279 | return JSReceiver::SetProperty(js_object, name, value, attr, strict_mode); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5280 | } |
| 5281 | } |
| 5282 | |
| 5283 | |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5284 | Handle<Object> Runtime::ForceSetObjectProperty(Isolate* isolate, |
| 5285 | Handle<JSObject> js_object, |
| 5286 | Handle<Object> key, |
| 5287 | Handle<Object> value, |
| 5288 | PropertyAttributes attr) { |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 5289 | // Check if the given key is an array index. |
| 5290 | uint32_t index; |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 5291 | if (key->ToArrayIndex(&index)) { |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 5292 | // In Firefox/SpiderMonkey, Safari and Opera you can access the characters |
| 5293 | // of a string using [] notation. We need to support this too in |
| 5294 | // JavaScript. |
| 5295 | // In the case of a String object we just need to redirect the assignment to |
| 5296 | // the underlying string if the index is in range. Since the underlying |
| 5297 | // string does nothing with the assignment then we can ignore such |
| 5298 | // assignments. |
| 5299 | if (js_object->IsStringObjectWithCharacterAt(index)) { |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5300 | return value; |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 5301 | } |
| 5302 | |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5303 | return JSObject::SetElement(js_object, index, value, attr, kNonStrictMode, |
| 5304 | false, |
| 5305 | DEFINE_PROPERTY); |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 5306 | } |
| 5307 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 5308 | if (key->IsName()) { |
| 5309 | Handle<Name> name = Handle<Name>::cast(key); |
| 5310 | if (name->AsArrayIndex(&index)) { |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5311 | return JSObject::SetElement(js_object, index, value, attr, kNonStrictMode, |
| 5312 | false, |
| 5313 | DEFINE_PROPERTY); |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 5314 | } else { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 5315 | if (name->IsString()) Handle<String>::cast(name)->TryFlatten(); |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5316 | return JSObject::SetLocalPropertyIgnoreAttributes(js_object, name, |
| 5317 | value, attr); |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 5318 | } |
| 5319 | } |
| 5320 | |
| 5321 | // Call-back into JavaScript to convert the key to a string. |
| 5322 | bool has_pending_exception = false; |
mstarzinger@chromium.org | e900018 | 2013-09-03 11:25:39 +0000 | [diff] [blame] | 5323 | Handle<Object> converted = |
| 5324 | Execution::ToString(isolate, key, &has_pending_exception); |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5325 | if (has_pending_exception) return Handle<Object>(); // exception |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 5326 | Handle<String> name = Handle<String>::cast(converted); |
| 5327 | |
| 5328 | if (name->AsArrayIndex(&index)) { |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5329 | return JSObject::SetElement(js_object, index, value, attr, kNonStrictMode, |
| 5330 | false, |
| 5331 | DEFINE_PROPERTY); |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 5332 | } else { |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5333 | return JSObject::SetLocalPropertyIgnoreAttributes(js_object, name, value, |
| 5334 | attr); |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 5335 | } |
| 5336 | } |
| 5337 | |
| 5338 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5339 | MaybeObject* Runtime::DeleteObjectProperty(Isolate* isolate, |
| 5340 | Handle<JSReceiver> receiver, |
| 5341 | Handle<Object> key, |
| 5342 | JSReceiver::DeleteMode mode) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5343 | HandleScope scope(isolate); |
ager@chromium.org | e2902be | 2009-06-08 12:21:35 +0000 | [diff] [blame] | 5344 | |
| 5345 | // Check if the given key is an array index. |
| 5346 | uint32_t index; |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 5347 | if (key->ToArrayIndex(&index)) { |
ager@chromium.org | e2902be | 2009-06-08 12:21:35 +0000 | [diff] [blame] | 5348 | // In Firefox/SpiderMonkey, Safari and Opera you can access the |
| 5349 | // characters of a string using [] notation. In the case of a |
| 5350 | // String object we just need to redirect the deletion to the |
| 5351 | // underlying string if the index is in range. Since the |
| 5352 | // underlying string does nothing with the deletion, we can ignore |
| 5353 | // such deletions. |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 5354 | if (receiver->IsStringObjectWithCharacterAt(index)) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5355 | return isolate->heap()->true_value(); |
ager@chromium.org | e2902be | 2009-06-08 12:21:35 +0000 | [diff] [blame] | 5356 | } |
| 5357 | |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 5358 | Handle<Object> result = JSReceiver::DeleteElement(receiver, index, mode); |
| 5359 | RETURN_IF_EMPTY_HANDLE(isolate, result); |
| 5360 | return *result; |
ager@chromium.org | e2902be | 2009-06-08 12:21:35 +0000 | [diff] [blame] | 5361 | } |
| 5362 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 5363 | Handle<Name> name; |
| 5364 | if (key->IsName()) { |
| 5365 | name = Handle<Name>::cast(key); |
ager@chromium.org | e2902be | 2009-06-08 12:21:35 +0000 | [diff] [blame] | 5366 | } else { |
| 5367 | // Call-back into JavaScript to convert the key to a string. |
| 5368 | bool has_pending_exception = false; |
mstarzinger@chromium.org | e900018 | 2013-09-03 11:25:39 +0000 | [diff] [blame] | 5369 | Handle<Object> converted = Execution::ToString( |
| 5370 | isolate, key, &has_pending_exception); |
ager@chromium.org | e2902be | 2009-06-08 12:21:35 +0000 | [diff] [blame] | 5371 | if (has_pending_exception) return Failure::Exception(); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 5372 | name = Handle<String>::cast(converted); |
ager@chromium.org | e2902be | 2009-06-08 12:21:35 +0000 | [diff] [blame] | 5373 | } |
| 5374 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 5375 | if (name->IsString()) Handle<String>::cast(name)->TryFlatten(); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 5376 | Handle<Object> result = JSReceiver::DeleteProperty(receiver, name, mode); |
| 5377 | RETURN_IF_EMPTY_HANDLE(isolate, result); |
| 5378 | return *result; |
ager@chromium.org | e2902be | 2009-06-08 12:21:35 +0000 | [diff] [blame] | 5379 | } |
| 5380 | |
| 5381 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 5382 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SetProperty) { |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5383 | HandleScope scope(isolate); |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 5384 | RUNTIME_ASSERT(args.length() == 4 || args.length() == 5); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5385 | |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5386 | CONVERT_ARG_HANDLE_CHECKED(Object, object, 0); |
| 5387 | CONVERT_ARG_HANDLE_CHECKED(Object, key, 1); |
| 5388 | CONVERT_ARG_HANDLE_CHECKED(Object, value, 2); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 5389 | CONVERT_SMI_ARG_CHECKED(unchecked_attributes, 3); |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 5390 | RUNTIME_ASSERT( |
| 5391 | (unchecked_attributes & ~(READ_ONLY | DONT_ENUM | DONT_DELETE)) == 0); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5392 | // Compute attributes. |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 5393 | PropertyAttributes attributes = |
| 5394 | static_cast<PropertyAttributes>(unchecked_attributes); |
| 5395 | |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 5396 | StrictModeFlag strict_mode = kNonStrictMode; |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 5397 | if (args.length() == 5) { |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 5398 | CONVERT_STRICT_MODE_ARG_CHECKED(strict_mode_flag, 4); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 5399 | strict_mode = strict_mode_flag; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5400 | } |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 5401 | |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5402 | Handle<Object> result = Runtime::SetObjectProperty(isolate, object, key, |
| 5403 | value, |
| 5404 | attributes, |
| 5405 | strict_mode); |
| 5406 | RETURN_IF_EMPTY_HANDLE(isolate, result); |
| 5407 | return *result; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5408 | } |
| 5409 | |
| 5410 | |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 5411 | RUNTIME_FUNCTION(MaybeObject*, Runtime_TransitionElementsKind) { |
| 5412 | HandleScope scope(isolate); |
| 5413 | RUNTIME_ASSERT(args.length() == 2); |
| 5414 | CONVERT_ARG_HANDLE_CHECKED(JSArray, array, 0); |
| 5415 | CONVERT_ARG_HANDLE_CHECKED(Map, map, 1); |
| 5416 | JSObject::TransitionElementsKind(array, map->elements_kind()); |
| 5417 | return *array; |
| 5418 | } |
| 5419 | |
| 5420 | |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 5421 | // Set the native flag on the function. |
ricow@chromium.org | 6fe7a8e | 2011-05-13 07:57:29 +0000 | [diff] [blame] | 5422 | // This is used to decide if we should transform null and undefined |
| 5423 | // into the global object when doing call and apply. |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 5424 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SetNativeFlag) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 5425 | SealHandleScope shs(isolate); |
ricow@chromium.org | 6fe7a8e | 2011-05-13 07:57:29 +0000 | [diff] [blame] | 5426 | RUNTIME_ASSERT(args.length() == 1); |
| 5427 | |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5428 | CONVERT_ARG_CHECKED(Object, object, 0); |
ricow@chromium.org | 6fe7a8e | 2011-05-13 07:57:29 +0000 | [diff] [blame] | 5429 | |
| 5430 | if (object->IsJSFunction()) { |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 5431 | JSFunction* func = JSFunction::cast(object); |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 5432 | func->shared()->set_native(true); |
ricow@chromium.org | 6fe7a8e | 2011-05-13 07:57:29 +0000 | [diff] [blame] | 5433 | } |
| 5434 | return isolate->heap()->undefined_value(); |
| 5435 | } |
| 5436 | |
| 5437 | |
machenbach@chromium.org | 0cc0950 | 2013-11-13 12:20:55 +0000 | [diff] [blame] | 5438 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SetInlineBuiltinFlag) { |
| 5439 | SealHandleScope shs(isolate); |
| 5440 | RUNTIME_ASSERT(args.length() == 1); |
| 5441 | |
| 5442 | Handle<Object> object = args.at<Object>(0); |
| 5443 | |
| 5444 | if (object->IsJSFunction()) { |
| 5445 | JSFunction* func = JSFunction::cast(*object); |
| 5446 | func->shared()->set_inline_builtin(true); |
| 5447 | } |
| 5448 | return isolate->heap()->undefined_value(); |
| 5449 | } |
| 5450 | |
| 5451 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 5452 | RUNTIME_FUNCTION(MaybeObject*, Runtime_StoreArrayLiteralElement) { |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 5453 | HandleScope scope(isolate); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 5454 | RUNTIME_ASSERT(args.length() == 5); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 5455 | CONVERT_ARG_HANDLE_CHECKED(JSObject, object, 0); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 5456 | CONVERT_SMI_ARG_CHECKED(store_index, 1); |
| 5457 | Handle<Object> value = args.at<Object>(2); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 5458 | CONVERT_ARG_HANDLE_CHECKED(FixedArray, literals, 3); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 5459 | CONVERT_SMI_ARG_CHECKED(literal_index, 4); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 5460 | |
danno@chromium.org | bee5199 | 2013-07-10 14:57:15 +0000 | [diff] [blame] | 5461 | Object* raw_literal_cell = literals->get(literal_index); |
| 5462 | JSArray* boilerplate = NULL; |
| 5463 | if (raw_literal_cell->IsAllocationSite()) { |
| 5464 | AllocationSite* site = AllocationSite::cast(raw_literal_cell); |
| 5465 | boilerplate = JSArray::cast(site->transition_info()); |
| 5466 | } else { |
| 5467 | boilerplate = JSArray::cast(raw_literal_cell); |
| 5468 | } |
| 5469 | Handle<JSArray> boilerplate_object(boilerplate); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 5470 | ElementsKind elements_kind = object->GetElementsKind(); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 5471 | ASSERT(IsFastElementsKind(elements_kind)); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 5472 | // Smis should never trigger transitions. |
| 5473 | ASSERT(!value->IsSmi()); |
| 5474 | |
| 5475 | if (value->IsNumber()) { |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 5476 | ASSERT(IsFastSmiElementsKind(elements_kind)); |
| 5477 | ElementsKind transitioned_kind = IsFastHoleyElementsKind(elements_kind) |
| 5478 | ? FAST_HOLEY_DOUBLE_ELEMENTS |
| 5479 | : FAST_DOUBLE_ELEMENTS; |
| 5480 | if (IsMoreGeneralElementsKindTransition( |
| 5481 | boilerplate_object->GetElementsKind(), |
| 5482 | transitioned_kind)) { |
| 5483 | JSObject::TransitionElementsKind(boilerplate_object, transitioned_kind); |
fschneider@chromium.org | 7d10be5 | 2012-04-10 12:30:14 +0000 | [diff] [blame] | 5484 | } |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 5485 | JSObject::TransitionElementsKind(object, transitioned_kind); |
| 5486 | ASSERT(IsFastDoubleElementsKind(object->GetElementsKind())); |
fschneider@chromium.org | 7d10be5 | 2012-04-10 12:30:14 +0000 | [diff] [blame] | 5487 | FixedDoubleArray* double_array = FixedDoubleArray::cast(object->elements()); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 5488 | HeapNumber* number = HeapNumber::cast(*value); |
| 5489 | double_array->set(store_index, number->Number()); |
| 5490 | } else { |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 5491 | ASSERT(IsFastSmiElementsKind(elements_kind) || |
| 5492 | IsFastDoubleElementsKind(elements_kind)); |
| 5493 | ElementsKind transitioned_kind = IsFastHoleyElementsKind(elements_kind) |
| 5494 | ? FAST_HOLEY_ELEMENTS |
| 5495 | : FAST_ELEMENTS; |
| 5496 | JSObject::TransitionElementsKind(object, transitioned_kind); |
| 5497 | if (IsMoreGeneralElementsKindTransition( |
| 5498 | boilerplate_object->GetElementsKind(), |
| 5499 | transitioned_kind)) { |
| 5500 | JSObject::TransitionElementsKind(boilerplate_object, transitioned_kind); |
fschneider@chromium.org | 7d10be5 | 2012-04-10 12:30:14 +0000 | [diff] [blame] | 5501 | } |
| 5502 | FixedArray* object_array = FixedArray::cast(object->elements()); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 5503 | object_array->set(store_index, *value); |
| 5504 | } |
| 5505 | return *object; |
| 5506 | } |
| 5507 | |
| 5508 | |
mstarzinger@chromium.org | 88d326b | 2012-04-23 12:57:22 +0000 | [diff] [blame] | 5509 | // Check whether debugger and is about to step into the callback that is passed |
| 5510 | // to a built-in function such as Array.forEach. |
| 5511 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DebugCallbackSupportsStepping) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 5512 | SealHandleScope shs(isolate); |
yangguo@chromium.org | 99aa490 | 2012-07-06 16:21:55 +0000 | [diff] [blame] | 5513 | #ifdef ENABLE_DEBUGGER_SUPPORT |
danno@chromium.org | 81cac2b | 2012-07-10 11:28:27 +0000 | [diff] [blame] | 5514 | if (!isolate->IsDebuggerActive() || !isolate->debug()->StepInActive()) { |
| 5515 | return isolate->heap()->false_value(); |
| 5516 | } |
mstarzinger@chromium.org | 88d326b | 2012-04-23 12:57:22 +0000 | [diff] [blame] | 5517 | CONVERT_ARG_CHECKED(Object, callback, 0); |
| 5518 | // We do not step into the callback if it's a builtin or not even a function. |
| 5519 | if (!callback->IsJSFunction() || JSFunction::cast(callback)->IsBuiltin()) { |
| 5520 | return isolate->heap()->false_value(); |
| 5521 | } |
| 5522 | return isolate->heap()->true_value(); |
yangguo@chromium.org | 99aa490 | 2012-07-06 16:21:55 +0000 | [diff] [blame] | 5523 | #else |
| 5524 | return isolate->heap()->false_value(); |
| 5525 | #endif // ENABLE_DEBUGGER_SUPPORT |
mstarzinger@chromium.org | 88d326b | 2012-04-23 12:57:22 +0000 | [diff] [blame] | 5526 | } |
| 5527 | |
| 5528 | |
| 5529 | // Set one shot breakpoints for the callback function that is passed to a |
| 5530 | // built-in function such as Array.forEach to enable stepping into the callback. |
| 5531 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DebugPrepareStepInIfStepping) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 5532 | SealHandleScope shs(isolate); |
yangguo@chromium.org | 99aa490 | 2012-07-06 16:21:55 +0000 | [diff] [blame] | 5533 | #ifdef ENABLE_DEBUGGER_SUPPORT |
mstarzinger@chromium.org | 88d326b | 2012-04-23 12:57:22 +0000 | [diff] [blame] | 5534 | Debug* debug = isolate->debug(); |
yangguo@chromium.org | 99aa490 | 2012-07-06 16:21:55 +0000 | [diff] [blame] | 5535 | if (!debug->IsStepping()) return isolate->heap()->undefined_value(); |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 5536 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, callback, 0); |
mstarzinger@chromium.org | 88d326b | 2012-04-23 12:57:22 +0000 | [diff] [blame] | 5537 | HandleScope scope(isolate); |
mstarzinger@chromium.org | 88d326b | 2012-04-23 12:57:22 +0000 | [diff] [blame] | 5538 | // When leaving the callback, step out has been activated, but not performed |
| 5539 | // if we do not leave the builtin. To be able to step into the callback |
| 5540 | // again, we need to clear the step out at this point. |
| 5541 | debug->ClearStepOut(); |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 5542 | debug->FloodWithOneShot(callback); |
yangguo@chromium.org | 99aa490 | 2012-07-06 16:21:55 +0000 | [diff] [blame] | 5543 | #endif // ENABLE_DEBUGGER_SUPPORT |
| 5544 | return isolate->heap()->undefined_value(); |
mstarzinger@chromium.org | 88d326b | 2012-04-23 12:57:22 +0000 | [diff] [blame] | 5545 | } |
| 5546 | |
| 5547 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5548 | // Set a local property, even if it is READ_ONLY. If the property does not |
| 5549 | // exist, it will be added with attributes NONE. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 5550 | RUNTIME_FUNCTION(MaybeObject*, Runtime_IgnoreAttributesAndSetProperty) { |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 5551 | HandleScope scope(isolate); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 5552 | RUNTIME_ASSERT(args.length() == 3 || args.length() == 4); |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 5553 | CONVERT_ARG_HANDLE_CHECKED(JSObject, object, 0); |
| 5554 | CONVERT_ARG_HANDLE_CHECKED(Name, name, 1); |
| 5555 | CONVERT_ARG_HANDLE_CHECKED(Object, value, 2); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 5556 | // Compute attributes. |
| 5557 | PropertyAttributes attributes = NONE; |
| 5558 | if (args.length() == 4) { |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 5559 | CONVERT_SMI_ARG_CHECKED(unchecked_value, 3); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 5560 | // Only attribute bits should be set. |
| 5561 | RUNTIME_ASSERT( |
| 5562 | (unchecked_value & ~(READ_ONLY | DONT_ENUM | DONT_DELETE)) == 0); |
| 5563 | attributes = static_cast<PropertyAttributes>(unchecked_value); |
| 5564 | } |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 5565 | Handle<Object> result = JSObject::SetLocalPropertyIgnoreAttributes( |
| 5566 | object, name, value, attributes); |
| 5567 | RETURN_IF_EMPTY_HANDLE(isolate, result); |
| 5568 | return *result; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5569 | } |
| 5570 | |
| 5571 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 5572 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DeleteProperty) { |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 5573 | HandleScope scope(isolate); |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 5574 | ASSERT(args.length() == 3); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 5575 | CONVERT_ARG_HANDLE_CHECKED(JSReceiver, object, 0); |
| 5576 | CONVERT_ARG_HANDLE_CHECKED(Name, key, 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 5577 | CONVERT_STRICT_MODE_ARG_CHECKED(strict_mode, 2); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 5578 | JSReceiver::DeleteMode delete_mode = (strict_mode == kStrictMode) |
| 5579 | ? JSReceiver::STRICT_DELETION : JSReceiver::NORMAL_DELETION; |
| 5580 | Handle<Object> result = JSReceiver::DeleteProperty(object, key, delete_mode); |
| 5581 | RETURN_IF_EMPTY_HANDLE(isolate, result); |
| 5582 | return *result; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5583 | } |
| 5584 | |
| 5585 | |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 5586 | static MaybeObject* HasLocalPropertyImplementation(Isolate* isolate, |
| 5587 | Handle<JSObject> object, |
| 5588 | Handle<Name> key) { |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 5589 | if (JSReceiver::HasLocalProperty(object, key)) { |
| 5590 | return isolate->heap()->true_value(); |
| 5591 | } |
ager@chromium.org | 9085a01 | 2009-05-11 19:22:57 +0000 | [diff] [blame] | 5592 | // Handle hidden prototypes. If there's a hidden prototype above this thing |
| 5593 | // then we have to check it for properties, because they are supposed to |
| 5594 | // look like they are on this object. |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 5595 | Handle<Object> proto(object->GetPrototype(), isolate); |
ager@chromium.org | 9085a01 | 2009-05-11 19:22:57 +0000 | [diff] [blame] | 5596 | if (proto->IsJSObject() && |
| 5597 | Handle<JSObject>::cast(proto)->map()->is_hidden_prototype()) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5598 | return HasLocalPropertyImplementation(isolate, |
| 5599 | Handle<JSObject>::cast(proto), |
| 5600 | key); |
ager@chromium.org | 9085a01 | 2009-05-11 19:22:57 +0000 | [diff] [blame] | 5601 | } |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 5602 | RETURN_IF_SCHEDULED_EXCEPTION(isolate); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5603 | return isolate->heap()->false_value(); |
ager@chromium.org | 9085a01 | 2009-05-11 19:22:57 +0000 | [diff] [blame] | 5604 | } |
| 5605 | |
| 5606 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 5607 | RUNTIME_FUNCTION(MaybeObject*, Runtime_HasLocalProperty) { |
bmeurer@chromium.org | 0fdb2a6 | 2013-10-21 07:19:36 +0000 | [diff] [blame] | 5608 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5609 | ASSERT(args.length() == 2); |
bmeurer@chromium.org | 0fdb2a6 | 2013-10-21 07:19:36 +0000 | [diff] [blame] | 5610 | CONVERT_ARG_HANDLE_CHECKED(Name, key, 1); |
| 5611 | Handle<Object> object = args.at<Object>(0); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5612 | |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 5613 | uint32_t index; |
| 5614 | const bool key_is_array_index = key->AsArrayIndex(&index); |
| 5615 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5616 | // Only JS objects can have properties. |
bmeurer@chromium.org | 0fdb2a6 | 2013-10-21 07:19:36 +0000 | [diff] [blame] | 5617 | if (object->IsJSObject()) { |
| 5618 | Handle<JSObject> js_obj = Handle<JSObject>::cast(object); |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 5619 | // Fast case: either the key is a real named property or it is not |
| 5620 | // an array index and there are no interceptors or hidden |
| 5621 | // prototypes. |
bmeurer@chromium.org | 0fdb2a6 | 2013-10-21 07:19:36 +0000 | [diff] [blame] | 5622 | if (JSObject::HasRealNamedProperty(js_obj, key)) { |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 5623 | ASSERT(!isolate->has_scheduled_exception()); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 5624 | return isolate->heap()->true_value(); |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 5625 | } else { |
| 5626 | RETURN_IF_SCHEDULED_EXCEPTION(isolate); |
| 5627 | } |
bmeurer@chromium.org | 0fdb2a6 | 2013-10-21 07:19:36 +0000 | [diff] [blame] | 5628 | Map* map = js_obj->map(); |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 5629 | if (!key_is_array_index && |
| 5630 | !map->has_named_interceptor() && |
| 5631 | !HeapObject::cast(map->prototype())->map()->is_hidden_prototype()) { |
| 5632 | return isolate->heap()->false_value(); |
| 5633 | } |
| 5634 | // Slow case. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5635 | return HasLocalPropertyImplementation(isolate, |
bmeurer@chromium.org | 0fdb2a6 | 2013-10-21 07:19:36 +0000 | [diff] [blame] | 5636 | Handle<JSObject>(js_obj), |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 5637 | Handle<Name>(key)); |
bmeurer@chromium.org | 0fdb2a6 | 2013-10-21 07:19:36 +0000 | [diff] [blame] | 5638 | } else if (object->IsString() && key_is_array_index) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5639 | // Well, there is one exception: Handle [] on strings. |
bmeurer@chromium.org | 0fdb2a6 | 2013-10-21 07:19:36 +0000 | [diff] [blame] | 5640 | Handle<String> string = Handle<String>::cast(object); |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 5641 | if (index < static_cast<uint32_t>(string->length())) { |
| 5642 | return isolate->heap()->true_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5643 | } |
| 5644 | } |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5645 | return isolate->heap()->false_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5646 | } |
| 5647 | |
| 5648 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 5649 | RUNTIME_FUNCTION(MaybeObject*, Runtime_HasProperty) { |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 5650 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5651 | ASSERT(args.length() == 2); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 5652 | CONVERT_ARG_HANDLE_CHECKED(JSReceiver, receiver, 0); |
| 5653 | CONVERT_ARG_HANDLE_CHECKED(Name, key, 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5654 | |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 5655 | bool result = JSReceiver::HasProperty(receiver, key); |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 5656 | RETURN_IF_SCHEDULED_EXCEPTION(isolate); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 5657 | if (isolate->has_pending_exception()) return Failure::Exception(); |
| 5658 | return isolate->heap()->ToBoolean(result); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5659 | } |
| 5660 | |
| 5661 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 5662 | RUNTIME_FUNCTION(MaybeObject*, Runtime_HasElement) { |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 5663 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5664 | ASSERT(args.length() == 2); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 5665 | CONVERT_ARG_HANDLE_CHECKED(JSReceiver, receiver, 0); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 5666 | CONVERT_SMI_ARG_CHECKED(index, 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5667 | |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 5668 | bool result = JSReceiver::HasElement(receiver, index); |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 5669 | RETURN_IF_SCHEDULED_EXCEPTION(isolate); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 5670 | if (isolate->has_pending_exception()) return Failure::Exception(); |
| 5671 | return isolate->heap()->ToBoolean(result); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5672 | } |
| 5673 | |
| 5674 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 5675 | RUNTIME_FUNCTION(MaybeObject*, Runtime_IsPropertyEnumerable) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 5676 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5677 | ASSERT(args.length() == 2); |
| 5678 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 5679 | CONVERT_ARG_CHECKED(JSObject, object, 0); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 5680 | CONVERT_ARG_CHECKED(Name, key, 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5681 | |
ager@chromium.org | 870a0b6 | 2008-11-04 11:43:05 +0000 | [diff] [blame] | 5682 | PropertyAttributes att = object->GetLocalPropertyAttribute(key); |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 5683 | if (att == ABSENT || (att & DONT_ENUM) != 0) { |
| 5684 | RETURN_IF_SCHEDULED_EXCEPTION(isolate); |
| 5685 | return isolate->heap()->false_value(); |
| 5686 | } |
| 5687 | ASSERT(!isolate->has_scheduled_exception()); |
| 5688 | return isolate->heap()->true_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5689 | } |
| 5690 | |
| 5691 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 5692 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetPropertyNames) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5693 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5694 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 5695 | CONVERT_ARG_HANDLE_CHECKED(JSReceiver, object, 0); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 5696 | bool threw = false; |
| 5697 | Handle<JSArray> result = GetKeysFor(object, &threw); |
| 5698 | if (threw) return Failure::Exception(); |
| 5699 | return *result; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5700 | } |
| 5701 | |
| 5702 | |
| 5703 | // Returns either a FixedArray as Runtime_GetPropertyNames, |
| 5704 | // or, if the given object has an enum cache that contains |
| 5705 | // all enumerable properties of the object and its prototypes |
| 5706 | // have none, the map of the object. This is used to speed up |
| 5707 | // the check for deletions during a for-in. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 5708 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetPropertyNamesFast) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 5709 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5710 | ASSERT(args.length() == 1); |
| 5711 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 5712 | CONVERT_ARG_CHECKED(JSReceiver, raw_object, 0); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5713 | |
| 5714 | if (raw_object->IsSimpleEnum()) return raw_object->map(); |
| 5715 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5716 | HandleScope scope(isolate); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 5717 | Handle<JSReceiver> object(raw_object); |
| 5718 | bool threw = false; |
| 5719 | Handle<FixedArray> content = |
| 5720 | GetKeysInFixedArrayFor(object, INCLUDE_PROTOS, &threw); |
| 5721 | if (threw) return Failure::Exception(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5722 | |
| 5723 | // Test again, since cache may have been built by preceding call. |
| 5724 | if (object->IsSimpleEnum()) return object->map(); |
| 5725 | |
| 5726 | return *content; |
| 5727 | } |
| 5728 | |
| 5729 | |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5730 | // Find the length of the prototype chain that is to to handled as one. If a |
| 5731 | // prototype object is hidden it is to be viewed as part of the the object it |
| 5732 | // is prototype for. |
| 5733 | static int LocalPrototypeChainLength(JSObject* obj) { |
| 5734 | int count = 1; |
| 5735 | Object* proto = obj->GetPrototype(); |
| 5736 | while (proto->IsJSObject() && |
| 5737 | JSObject::cast(proto)->map()->is_hidden_prototype()) { |
| 5738 | count++; |
| 5739 | proto = JSObject::cast(proto)->GetPrototype(); |
| 5740 | } |
| 5741 | return count; |
| 5742 | } |
| 5743 | |
| 5744 | |
| 5745 | // Return the names of the local named properties. |
| 5746 | // args[0]: object |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 5747 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetLocalPropertyNames) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5748 | HandleScope scope(isolate); |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 5749 | ASSERT(args.length() == 2); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5750 | if (!args[0]->IsJSObject()) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5751 | return isolate->heap()->undefined_value(); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5752 | } |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 5753 | CONVERT_ARG_HANDLE_CHECKED(JSObject, obj, 0); |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 5754 | CONVERT_BOOLEAN_ARG_CHECKED(include_symbols, 1); |
| 5755 | PropertyAttributes filter = include_symbols ? NONE : SYMBOLIC; |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5756 | |
| 5757 | // Skip the global proxy as it has no properties and always delegates to the |
| 5758 | // real global object. |
| 5759 | if (obj->IsJSGlobalProxy()) { |
| 5760 | // Only collect names if access is permitted. |
| 5761 | if (obj->IsAccessCheckNeeded() && |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5762 | !isolate->MayNamedAccess(*obj, |
| 5763 | isolate->heap()->undefined_value(), |
| 5764 | v8::ACCESS_KEYS)) { |
| 5765 | isolate->ReportFailedAccessCheck(*obj, v8::ACCESS_KEYS); |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 5766 | RETURN_IF_SCHEDULED_EXCEPTION(isolate); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5767 | return *isolate->factory()->NewJSArray(0); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5768 | } |
| 5769 | obj = Handle<JSObject>(JSObject::cast(obj->GetPrototype())); |
| 5770 | } |
| 5771 | |
| 5772 | // Find the number of objects making up this. |
| 5773 | int length = LocalPrototypeChainLength(*obj); |
| 5774 | |
| 5775 | // Find the number of local properties for each of the objects. |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 5776 | ScopedVector<int> local_property_count(length); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5777 | int total_property_count = 0; |
| 5778 | Handle<JSObject> jsproto = obj; |
| 5779 | for (int i = 0; i < length; i++) { |
| 5780 | // Only collect names if access is permitted. |
| 5781 | if (jsproto->IsAccessCheckNeeded() && |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5782 | !isolate->MayNamedAccess(*jsproto, |
| 5783 | isolate->heap()->undefined_value(), |
| 5784 | v8::ACCESS_KEYS)) { |
| 5785 | isolate->ReportFailedAccessCheck(*jsproto, v8::ACCESS_KEYS); |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 5786 | RETURN_IF_SCHEDULED_EXCEPTION(isolate); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5787 | return *isolate->factory()->NewJSArray(0); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5788 | } |
| 5789 | int n; |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 5790 | n = jsproto->NumberOfLocalProperties(filter); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5791 | local_property_count[i] = n; |
| 5792 | total_property_count += n; |
| 5793 | if (i < length - 1) { |
| 5794 | jsproto = Handle<JSObject>(JSObject::cast(jsproto->GetPrototype())); |
| 5795 | } |
| 5796 | } |
| 5797 | |
| 5798 | // Allocate an array with storage for all the property names. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5799 | Handle<FixedArray> names = |
| 5800 | isolate->factory()->NewFixedArray(total_property_count); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5801 | |
| 5802 | // Get the property names. |
| 5803 | jsproto = obj; |
| 5804 | int proto_with_hidden_properties = 0; |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 5805 | int next_copy_index = 0; |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5806 | for (int i = 0; i < length; i++) { |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 5807 | jsproto->GetLocalPropertyNames(*names, next_copy_index, filter); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 5808 | next_copy_index += local_property_count[i]; |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 5809 | if (jsproto->HasHiddenProperties()) { |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5810 | proto_with_hidden_properties++; |
| 5811 | } |
| 5812 | if (i < length - 1) { |
| 5813 | jsproto = Handle<JSObject>(JSObject::cast(jsproto->GetPrototype())); |
| 5814 | } |
| 5815 | } |
| 5816 | |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 5817 | // Filter out name of hidden properties object. |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5818 | if (proto_with_hidden_properties > 0) { |
| 5819 | Handle<FixedArray> old_names = names; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5820 | names = isolate->factory()->NewFixedArray( |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5821 | names->length() - proto_with_hidden_properties); |
| 5822 | int dest_pos = 0; |
| 5823 | for (int i = 0; i < total_property_count; i++) { |
| 5824 | Object* name = old_names->get(i); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 5825 | if (name == isolate->heap()->hidden_string()) { |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5826 | continue; |
| 5827 | } |
| 5828 | names->set(dest_pos++, name); |
| 5829 | } |
| 5830 | } |
| 5831 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5832 | return *isolate->factory()->NewJSArrayWithElements(names); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5833 | } |
| 5834 | |
| 5835 | |
| 5836 | // Return the names of the local indexed properties. |
| 5837 | // args[0]: object |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 5838 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetLocalElementNames) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5839 | HandleScope scope(isolate); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5840 | ASSERT(args.length() == 1); |
| 5841 | if (!args[0]->IsJSObject()) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5842 | return isolate->heap()->undefined_value(); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5843 | } |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 5844 | CONVERT_ARG_HANDLE_CHECKED(JSObject, obj, 0); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5845 | |
| 5846 | int n = obj->NumberOfLocalElements(static_cast<PropertyAttributes>(NONE)); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5847 | Handle<FixedArray> names = isolate->factory()->NewFixedArray(n); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5848 | obj->GetLocalElementKeys(*names, static_cast<PropertyAttributes>(NONE)); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5849 | return *isolate->factory()->NewJSArrayWithElements(names); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5850 | } |
| 5851 | |
| 5852 | |
| 5853 | // Return information on whether an object has a named or indexed interceptor. |
| 5854 | // args[0]: object |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 5855 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetInterceptorInfo) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5856 | HandleScope scope(isolate); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5857 | ASSERT(args.length() == 1); |
| 5858 | if (!args[0]->IsJSObject()) { |
| 5859 | return Smi::FromInt(0); |
| 5860 | } |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 5861 | CONVERT_ARG_HANDLE_CHECKED(JSObject, obj, 0); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5862 | |
| 5863 | int result = 0; |
| 5864 | if (obj->HasNamedInterceptor()) result |= 2; |
| 5865 | if (obj->HasIndexedInterceptor()) result |= 1; |
| 5866 | |
| 5867 | return Smi::FromInt(result); |
| 5868 | } |
| 5869 | |
| 5870 | |
| 5871 | // Return property names from named interceptor. |
| 5872 | // args[0]: object |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 5873 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetNamedInterceptorPropertyNames) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5874 | HandleScope scope(isolate); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5875 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 5876 | CONVERT_ARG_HANDLE_CHECKED(JSObject, obj, 0); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5877 | |
| 5878 | if (obj->HasNamedInterceptor()) { |
| 5879 | v8::Handle<v8::Array> result = GetKeysForNamedInterceptor(obj, obj); |
| 5880 | if (!result.IsEmpty()) return *v8::Utils::OpenHandle(*result); |
| 5881 | } |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5882 | return isolate->heap()->undefined_value(); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5883 | } |
| 5884 | |
| 5885 | |
| 5886 | // Return element names from indexed interceptor. |
| 5887 | // args[0]: object |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 5888 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetIndexedInterceptorElementNames) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5889 | HandleScope scope(isolate); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5890 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 5891 | CONVERT_ARG_HANDLE_CHECKED(JSObject, obj, 0); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5892 | |
| 5893 | if (obj->HasIndexedInterceptor()) { |
| 5894 | v8::Handle<v8::Array> result = GetKeysForIndexedInterceptor(obj, obj); |
| 5895 | if (!result.IsEmpty()) return *v8::Utils::OpenHandle(*result); |
| 5896 | } |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5897 | return isolate->heap()->undefined_value(); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 5898 | } |
| 5899 | |
| 5900 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 5901 | RUNTIME_FUNCTION(MaybeObject*, Runtime_LocalKeys) { |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 5902 | HandleScope scope(isolate); |
christian.plesner.hansen@gmail.com | 2bc58ef | 2009-09-22 10:00:30 +0000 | [diff] [blame] | 5903 | ASSERT_EQ(args.length(), 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 5904 | CONVERT_ARG_CHECKED(JSObject, raw_object, 0); |
christian.plesner.hansen@gmail.com | 2bc58ef | 2009-09-22 10:00:30 +0000 | [diff] [blame] | 5905 | Handle<JSObject> object(raw_object); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 5906 | |
| 5907 | if (object->IsJSGlobalProxy()) { |
ricow@chromium.org | 6500178 | 2011-02-15 13:36:41 +0000 | [diff] [blame] | 5908 | // Do access checks before going to the global object. |
| 5909 | if (object->IsAccessCheckNeeded() && |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5910 | !isolate->MayNamedAccess(*object, isolate->heap()->undefined_value(), |
ricow@chromium.org | 6500178 | 2011-02-15 13:36:41 +0000 | [diff] [blame] | 5911 | v8::ACCESS_KEYS)) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5912 | isolate->ReportFailedAccessCheck(*object, v8::ACCESS_KEYS); |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 5913 | RETURN_IF_SCHEDULED_EXCEPTION(isolate); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5914 | return *isolate->factory()->NewJSArray(0); |
ricow@chromium.org | 6500178 | 2011-02-15 13:36:41 +0000 | [diff] [blame] | 5915 | } |
| 5916 | |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 5917 | Handle<Object> proto(object->GetPrototype(), isolate); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 5918 | // If proxy is detached we simply return an empty array. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5919 | if (proto->IsNull()) return *isolate->factory()->NewJSArray(0); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 5920 | object = Handle<JSObject>::cast(proto); |
| 5921 | } |
| 5922 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 5923 | bool threw = false; |
| 5924 | Handle<FixedArray> contents = |
| 5925 | GetKeysInFixedArrayFor(object, LOCAL_ONLY, &threw); |
| 5926 | if (threw) return Failure::Exception(); |
| 5927 | |
christian.plesner.hansen@gmail.com | 2bc58ef | 2009-09-22 10:00:30 +0000 | [diff] [blame] | 5928 | // Some fast paths through GetKeysInFixedArrayFor reuse a cached |
| 5929 | // property array and since the result is mutable we have to create |
| 5930 | // a fresh clone on each invocation. |
sgjesse@chromium.org | c514574 | 2009-10-07 09:00:33 +0000 | [diff] [blame] | 5931 | int length = contents->length(); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5932 | Handle<FixedArray> copy = isolate->factory()->NewFixedArray(length); |
sgjesse@chromium.org | c514574 | 2009-10-07 09:00:33 +0000 | [diff] [blame] | 5933 | for (int i = 0; i < length; i++) { |
| 5934 | Object* entry = contents->get(i); |
| 5935 | if (entry->IsString()) { |
| 5936 | copy->set(i, entry); |
| 5937 | } else { |
| 5938 | ASSERT(entry->IsNumber()); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5939 | HandleScope scope(isolate); |
| 5940 | Handle<Object> entry_handle(entry, isolate); |
| 5941 | Handle<Object> entry_str = |
| 5942 | isolate->factory()->NumberToString(entry_handle); |
sgjesse@chromium.org | c514574 | 2009-10-07 09:00:33 +0000 | [diff] [blame] | 5943 | copy->set(i, *entry_str); |
| 5944 | } |
| 5945 | } |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5946 | return *isolate->factory()->NewJSArrayWithElements(copy); |
christian.plesner.hansen@gmail.com | 2bc58ef | 2009-09-22 10:00:30 +0000 | [diff] [blame] | 5947 | } |
| 5948 | |
| 5949 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 5950 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetArgumentsProperty) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 5951 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5952 | ASSERT(args.length() == 1); |
| 5953 | |
| 5954 | // Compute the frame holding the arguments. |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 5955 | JavaScriptFrameIterator it(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5956 | it.AdvanceToArgumentsFrame(); |
| 5957 | JavaScriptFrame* frame = it.frame(); |
| 5958 | |
| 5959 | // Get the actual number of provided arguments. |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 5960 | const uint32_t n = frame->ComputeParametersCount(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5961 | |
| 5962 | // Try to convert the key to an index. If successful and within |
| 5963 | // index return the the argument from the frame. |
| 5964 | uint32_t index; |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 5965 | if (args[0]->ToArrayIndex(&index) && index < n) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5966 | return frame->GetParameter(index); |
| 5967 | } |
| 5968 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 5969 | if (args[0]->IsSymbol()) { |
| 5970 | // Lookup in the initial Object.prototype object. |
| 5971 | return isolate->initial_object_prototype()->GetProperty( |
| 5972 | Symbol::cast(args[0])); |
| 5973 | } |
| 5974 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5975 | // Convert the key to a string. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5976 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5977 | bool exception = false; |
| 5978 | Handle<Object> converted = |
mstarzinger@chromium.org | e900018 | 2013-09-03 11:25:39 +0000 | [diff] [blame] | 5979 | Execution::ToString(isolate, args.at<Object>(0), &exception); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5980 | if (exception) return Failure::Exception(); |
| 5981 | Handle<String> key = Handle<String>::cast(converted); |
| 5982 | |
| 5983 | // Try to convert the string key into an array index. |
| 5984 | if (key->AsArrayIndex(&index)) { |
| 5985 | if (index < n) { |
| 5986 | return frame->GetParameter(index); |
| 5987 | } else { |
jkummerow@chromium.org | 3d00d0a | 2013-09-04 13:57:32 +0000 | [diff] [blame] | 5988 | return isolate->initial_object_prototype()->GetElement(isolate, index); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 5989 | } |
| 5990 | } |
| 5991 | |
| 5992 | // Handle special arguments properties. |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 5993 | if (key->Equals(isolate->heap()->length_string())) return Smi::FromInt(n); |
| 5994 | if (key->Equals(isolate->heap()->callee_string())) { |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 5995 | JSFunction* function = frame->function(); |
| 5996 | if (!function->shared()->is_classic_mode()) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 5997 | return isolate->Throw(*isolate->factory()->NewTypeError( |
| 5998 | "strict_arguments_callee", HandleVector<Object>(NULL, 0))); |
| 5999 | } |
| 6000 | return function; |
| 6001 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6002 | |
| 6003 | // Lookup in the initial Object.prototype object. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6004 | return isolate->initial_object_prototype()->GetProperty(*key); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6005 | } |
| 6006 | |
| 6007 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6008 | RUNTIME_FUNCTION(MaybeObject*, Runtime_ToFastProperties) { |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 6009 | HandleScope scope(isolate); |
kasperl@chromium.org | 061ef74 | 2009-02-27 12:16:20 +0000 | [diff] [blame] | 6010 | ASSERT(args.length() == 1); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 6011 | CONVERT_ARG_HANDLE_CHECKED(Object, object, 0); |
| 6012 | if (object->IsJSObject() && !object->IsGlobalObject()) { |
| 6013 | JSObject::TransformToFastProperties(Handle<JSObject>::cast(object), 0); |
| 6014 | } |
| 6015 | return *object; |
kasperl@chromium.org | 061ef74 | 2009-02-27 12:16:20 +0000 | [diff] [blame] | 6016 | } |
| 6017 | |
| 6018 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6019 | RUNTIME_FUNCTION(MaybeObject*, Runtime_ToBool) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 6020 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6021 | ASSERT(args.length() == 1); |
| 6022 | |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 6023 | return isolate->heap()->ToBoolean(args[0]->BooleanValue()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6024 | } |
| 6025 | |
| 6026 | |
| 6027 | // Returns the type string of a value; see ECMA-262, 11.4.3 (p 47). |
| 6028 | // Possible optimizations: put the type string into the oddballs. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6029 | RUNTIME_FUNCTION(MaybeObject*, Runtime_Typeof) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 6030 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6031 | |
| 6032 | Object* obj = args[0]; |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 6033 | if (obj->IsNumber()) return isolate->heap()->number_string(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6034 | HeapObject* heap_obj = HeapObject::cast(obj); |
| 6035 | |
| 6036 | // typeof an undetectable object is 'undefined' |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6037 | if (heap_obj->map()->is_undetectable()) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 6038 | return isolate->heap()->undefined_string(); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6039 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6040 | |
| 6041 | InstanceType instance_type = heap_obj->map()->instance_type(); |
| 6042 | if (instance_type < FIRST_NONSTRING_TYPE) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 6043 | return isolate->heap()->string_string(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6044 | } |
| 6045 | |
| 6046 | switch (instance_type) { |
| 6047 | case ODDBALL_TYPE: |
| 6048 | if (heap_obj->IsTrue() || heap_obj->IsFalse()) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 6049 | return isolate->heap()->boolean_string(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6050 | } |
| 6051 | if (heap_obj->IsNull()) { |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 6052 | return FLAG_harmony_typeof |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 6053 | ? isolate->heap()->null_string() |
| 6054 | : isolate->heap()->object_string(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6055 | } |
| 6056 | ASSERT(heap_obj->IsUndefined()); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 6057 | return isolate->heap()->undefined_string(); |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 6058 | case SYMBOL_TYPE: |
| 6059 | return isolate->heap()->symbol_string(); |
ricow@chromium.org | c54d365 | 2011-05-30 09:20:16 +0000 | [diff] [blame] | 6060 | case JS_FUNCTION_TYPE: |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 6061 | case JS_FUNCTION_PROXY_TYPE: |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 6062 | return isolate->heap()->function_string(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6063 | default: |
| 6064 | // For any kind of object not handled above, the spec rule for |
| 6065 | // host objects gives that it is okay to return "object" |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 6066 | return isolate->heap()->object_string(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6067 | } |
| 6068 | } |
| 6069 | |
| 6070 | |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 6071 | static bool AreDigits(const uint8_t*s, int from, int to) { |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 6072 | for (int i = from; i < to; i++) { |
| 6073 | if (s[i] < '0' || s[i] > '9') return false; |
| 6074 | } |
| 6075 | |
| 6076 | return true; |
| 6077 | } |
| 6078 | |
| 6079 | |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 6080 | static int ParseDecimalInteger(const uint8_t*s, int from, int to) { |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 6081 | ASSERT(to - from < 10); // Overflow is not possible. |
| 6082 | ASSERT(from < to); |
| 6083 | int d = s[from] - '0'; |
| 6084 | |
| 6085 | for (int i = from + 1; i < to; i++) { |
| 6086 | d = 10 * d + (s[i] - '0'); |
| 6087 | } |
| 6088 | |
| 6089 | return d; |
| 6090 | } |
| 6091 | |
| 6092 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6093 | RUNTIME_FUNCTION(MaybeObject*, Runtime_StringToNumber) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 6094 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6095 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 6096 | CONVERT_ARG_CHECKED(String, subject, 0); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 6097 | subject->TryFlatten(); |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 6098 | |
| 6099 | // Fast case: short integer or some sorts of junk values. |
| 6100 | int len = subject->length(); |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 6101 | if (subject->IsSeqOneByteString()) { |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 6102 | if (len == 0) return Smi::FromInt(0); |
| 6103 | |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 6104 | uint8_t const* data = SeqOneByteString::cast(subject)->GetChars(); |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 6105 | bool minus = (data[0] == '-'); |
| 6106 | int start_pos = (minus ? 1 : 0); |
| 6107 | |
| 6108 | if (start_pos == len) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6109 | return isolate->heap()->nan_value(); |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 6110 | } else if (data[start_pos] > '9') { |
| 6111 | // Fast check for a junk value. A valid string may start from a |
| 6112 | // whitespace, a sign ('+' or '-'), the decimal point, a decimal digit or |
| 6113 | // the 'I' character ('Infinity'). All of that have codes not greater than |
mvstanton@chromium.org | 6bec009 | 2013-01-23 13:46:53 +0000 | [diff] [blame] | 6114 | // '9' except 'I' and . |
| 6115 | if (data[start_pos] != 'I' && data[start_pos] != 0xa0) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6116 | return isolate->heap()->nan_value(); |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 6117 | } |
| 6118 | } else if (len - start_pos < 10 && AreDigits(data, start_pos, len)) { |
| 6119 | // The maximal/minimal smi has 10 digits. If the string has less digits we |
| 6120 | // know it will fit into the smi-data type. |
| 6121 | int d = ParseDecimalInteger(data, start_pos, len); |
| 6122 | if (minus) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6123 | if (d == 0) return isolate->heap()->minus_zero_value(); |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 6124 | d = -d; |
ricow@chromium.org | d236f4d | 2010-09-01 06:52:08 +0000 | [diff] [blame] | 6125 | } else if (!subject->HasHashCode() && |
| 6126 | len <= String::kMaxArrayIndexSize && |
| 6127 | (len == 1 || data[0] != '0')) { |
| 6128 | // String hash is not calculated yet but all the data are present. |
| 6129 | // Update the hash field to speed up sequential convertions. |
ager@chromium.org | 5b2fbee | 2010-09-08 06:38:15 +0000 | [diff] [blame] | 6130 | uint32_t hash = StringHasher::MakeArrayIndexHash(d, len); |
ricow@chromium.org | d236f4d | 2010-09-01 06:52:08 +0000 | [diff] [blame] | 6131 | #ifdef DEBUG |
ricow@chromium.org | d236f4d | 2010-09-01 06:52:08 +0000 | [diff] [blame] | 6132 | subject->Hash(); // Force hash calculation. |
| 6133 | ASSERT_EQ(static_cast<int>(subject->hash_field()), |
| 6134 | static_cast<int>(hash)); |
| 6135 | #endif |
| 6136 | subject->set_hash_field(hash); |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 6137 | } |
| 6138 | return Smi::FromInt(d); |
| 6139 | } |
| 6140 | } |
| 6141 | |
| 6142 | // Slower case. |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 6143 | int flags = ALLOW_HEX; |
| 6144 | if (FLAG_harmony_numeric_literals) { |
| 6145 | // The current spec draft has not updated "ToNumber Applied to the String |
| 6146 | // Type", https://bugs.ecmascript.org/show_bug.cgi?id=1584 |
| 6147 | flags |= ALLOW_OCTAL | ALLOW_BINARY; |
| 6148 | } |
ager@chromium.org | a9aa5fa | 2011-04-13 08:46:07 +0000 | [diff] [blame] | 6149 | return isolate->heap()->NumberFromDouble( |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 6150 | StringToDouble(isolate->unicode_cache(), subject, flags)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6151 | } |
| 6152 | |
| 6153 | |
mstarzinger@chromium.org | 32280cf | 2012-12-06 17:32:37 +0000 | [diff] [blame] | 6154 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NewString) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 6155 | SealHandleScope shs(isolate); |
mstarzinger@chromium.org | 32280cf | 2012-12-06 17:32:37 +0000 | [diff] [blame] | 6156 | CONVERT_SMI_ARG_CHECKED(length, 0); |
| 6157 | CONVERT_BOOLEAN_ARG_CHECKED(is_one_byte, 1); |
| 6158 | if (length == 0) return isolate->heap()->empty_string(); |
| 6159 | if (is_one_byte) { |
| 6160 | return isolate->heap()->AllocateRawOneByteString(length); |
| 6161 | } else { |
| 6162 | return isolate->heap()->AllocateRawTwoByteString(length); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6163 | } |
mstarzinger@chromium.org | 32280cf | 2012-12-06 17:32:37 +0000 | [diff] [blame] | 6164 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6165 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6166 | |
mstarzinger@chromium.org | 32280cf | 2012-12-06 17:32:37 +0000 | [diff] [blame] | 6167 | RUNTIME_FUNCTION(MaybeObject*, Runtime_TruncateString) { |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 6168 | HandleScope scope(isolate); |
| 6169 | CONVERT_ARG_HANDLE_CHECKED(SeqString, string, 0); |
mstarzinger@chromium.org | 32280cf | 2012-12-06 17:32:37 +0000 | [diff] [blame] | 6170 | CONVERT_SMI_ARG_CHECKED(new_length, 1); |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 6171 | return *SeqString::Truncate(string, new_length); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6172 | } |
| 6173 | |
| 6174 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6175 | RUNTIME_FUNCTION(MaybeObject*, Runtime_URIEscape) { |
ulan@chromium.org | 2e04b58 | 2013-02-21 14:06:02 +0000 | [diff] [blame] | 6176 | HandleScope scope(isolate); |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 6177 | ASSERT(args.length() == 1); |
ulan@chromium.org | 2e04b58 | 2013-02-21 14:06:02 +0000 | [diff] [blame] | 6178 | CONVERT_ARG_HANDLE_CHECKED(String, source, 0); |
| 6179 | Handle<String> string = FlattenGetString(source); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 6180 | ASSERT(string->IsFlat()); |
| 6181 | Handle<String> result = string->IsOneByteRepresentationUnderneath() |
| 6182 | ? URIEscape::Escape<uint8_t>(isolate, source) |
| 6183 | : URIEscape::Escape<uc16>(isolate, source); |
ulan@chromium.org | 2e04b58 | 2013-02-21 14:06:02 +0000 | [diff] [blame] | 6184 | if (result.is_null()) return Failure::OutOfMemoryException(0x12); |
| 6185 | return *result; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6186 | } |
| 6187 | |
| 6188 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6189 | RUNTIME_FUNCTION(MaybeObject*, Runtime_URIUnescape) { |
ulan@chromium.org | 2e04b58 | 2013-02-21 14:06:02 +0000 | [diff] [blame] | 6190 | HandleScope scope(isolate); |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 6191 | ASSERT(args.length() == 1); |
ulan@chromium.org | 2e04b58 | 2013-02-21 14:06:02 +0000 | [diff] [blame] | 6192 | CONVERT_ARG_HANDLE_CHECKED(String, source, 0); |
| 6193 | Handle<String> string = FlattenGetString(source); |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 6194 | ASSERT(string->IsFlat()); |
| 6195 | return string->IsOneByteRepresentationUnderneath() |
| 6196 | ? *URIUnescape::Unescape<uint8_t>(isolate, source) |
| 6197 | : *URIUnescape::Unescape<uc16>(isolate, source); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6198 | } |
| 6199 | |
| 6200 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6201 | RUNTIME_FUNCTION(MaybeObject*, Runtime_QuoteJSONString) { |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 6202 | HandleScope scope(isolate); |
| 6203 | CONVERT_ARG_HANDLE_CHECKED(String, string, 0); |
ricow@chromium.org | c54d365 | 2011-05-30 09:20:16 +0000 | [diff] [blame] | 6204 | ASSERT(args.length() == 1); |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 6205 | return BasicJsonStringifier::StringifyString(isolate, string); |
ricow@chromium.org | c54d365 | 2011-05-30 09:20:16 +0000 | [diff] [blame] | 6206 | } |
| 6207 | |
| 6208 | |
danno@chromium.org | 72204d5 | 2012-10-31 10:02:10 +0000 | [diff] [blame] | 6209 | RUNTIME_FUNCTION(MaybeObject*, Runtime_BasicJSONStringify) { |
danno@chromium.org | 72204d5 | 2012-10-31 10:02:10 +0000 | [diff] [blame] | 6210 | HandleScope scope(isolate); |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 6211 | ASSERT(args.length() == 1); |
danno@chromium.org | 72204d5 | 2012-10-31 10:02:10 +0000 | [diff] [blame] | 6212 | BasicJsonStringifier stringifier(isolate); |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 6213 | return stringifier.Stringify(Handle<Object>(args[0], isolate)); |
danno@chromium.org | 72204d5 | 2012-10-31 10:02:10 +0000 | [diff] [blame] | 6214 | } |
| 6215 | |
| 6216 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6217 | RUNTIME_FUNCTION(MaybeObject*, Runtime_StringParseInt) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 6218 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6219 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 6220 | CONVERT_ARG_CHECKED(String, s, 0); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 6221 | CONVERT_SMI_ARG_CHECKED(radix, 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6222 | |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 6223 | s->TryFlatten(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6224 | |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 6225 | RUNTIME_ASSERT(radix == 0 || (2 <= radix && radix <= 36)); |
ager@chromium.org | a9aa5fa | 2011-04-13 08:46:07 +0000 | [diff] [blame] | 6226 | double value = StringToInt(isolate->unicode_cache(), s, radix); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6227 | return isolate->heap()->NumberFromDouble(value); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6228 | } |
| 6229 | |
| 6230 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6231 | RUNTIME_FUNCTION(MaybeObject*, Runtime_StringParseFloat) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 6232 | SealHandleScope shs(isolate); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 6233 | CONVERT_ARG_CHECKED(String, str, 0); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6234 | |
| 6235 | // ECMA-262 section 15.1.2.3, empty string is NaN |
ager@chromium.org | a9aa5fa | 2011-04-13 08:46:07 +0000 | [diff] [blame] | 6236 | double value = StringToDouble(isolate->unicode_cache(), |
| 6237 | str, ALLOW_TRAILING_JUNK, OS::nan_value()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6238 | |
| 6239 | // Create a number object from the value. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6240 | return isolate->heap()->NumberFromDouble(value); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6241 | } |
| 6242 | |
| 6243 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6244 | template <class Converter> |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 6245 | MUST_USE_RESULT static MaybeObject* ConvertCaseHelper( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6246 | Isolate* isolate, |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 6247 | String* s, |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 6248 | String::Encoding result_encoding, |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 6249 | int length, |
| 6250 | int input_string_length, |
| 6251 | unibrow::Mapping<Converter, 128>* mapping) { |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 6252 | // We try this twice, once with the assumption that the result is no longer |
| 6253 | // than the input and, if that assumption breaks, again with the exact |
| 6254 | // length. This may not be pretty, but it is nicer than what was here before |
| 6255 | // and I hereby claim my vaffel-is. |
| 6256 | // |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6257 | // Allocate the resulting string. |
| 6258 | // |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 6259 | // NOTE: This assumes that the upper/lower case of an ASCII |
| 6260 | // character is also ASCII. This is currently the case, but it |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6261 | // might break in the future if we implement more context and locale |
| 6262 | // dependent upper/lower conversions. |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 6263 | Object* o; |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 6264 | { MaybeObject* maybe_o = result_encoding == String::ONE_BYTE_ENCODING |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 6265 | ? isolate->heap()->AllocateRawOneByteString(length) |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6266 | : isolate->heap()->AllocateRawTwoByteString(length); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 6267 | if (!maybe_o->ToObject(&o)) return maybe_o; |
| 6268 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6269 | String* result = String::cast(o); |
| 6270 | bool has_changed_character = false; |
| 6271 | |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 6272 | DisallowHeapAllocation no_gc; |
| 6273 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6274 | // Convert all characters to upper case, assuming that they will fit |
| 6275 | // in the buffer |
yangguo@chromium.org | 4cd70b4 | 2013-01-04 08:57:54 +0000 | [diff] [blame] | 6276 | Access<ConsStringIteratorOp> op( |
| 6277 | isolate->runtime_state()->string_iterator()); |
| 6278 | StringCharacterStream stream(s, op.value()); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 6279 | unibrow::uchar chars[Converter::kMaxWidth]; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6280 | // We can assume that the string is not empty |
yangguo@chromium.org | 4cd70b4 | 2013-01-04 08:57:54 +0000 | [diff] [blame] | 6281 | uc32 current = stream.GetNext(); |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 6282 | // y with umlauts is the only character that stops fitting into one-byte |
| 6283 | // when converting to uppercase. |
| 6284 | static const uc32 yuml_code = 0xff; |
| 6285 | bool ignore_yuml = result->IsSeqTwoByteString() || Converter::kIsToLower; |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 6286 | for (int i = 0; i < length;) { |
yangguo@chromium.org | 4cd70b4 | 2013-01-04 08:57:54 +0000 | [diff] [blame] | 6287 | bool has_next = stream.HasMore(); |
| 6288 | uc32 next = has_next ? stream.GetNext() : 0; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6289 | int char_length = mapping->get(current, next, chars); |
| 6290 | if (char_length == 0) { |
| 6291 | // The case conversion of this character is the character itself. |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 6292 | result->Set(i, current); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6293 | i++; |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 6294 | } else if (char_length == 1 && (ignore_yuml || current != yuml_code)) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6295 | // Common case: converting the letter resulted in one character. |
| 6296 | ASSERT(static_cast<uc32>(chars[0]) != current); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 6297 | result->Set(i, chars[0]); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6298 | has_changed_character = true; |
| 6299 | i++; |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 6300 | } else if (length == input_string_length) { |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 6301 | bool found_yuml = (current == yuml_code); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6302 | // We've assumed that the result would be as long as the |
| 6303 | // input but here is a character that converts to several |
| 6304 | // characters. No matter, we calculate the exact length |
| 6305 | // of the result and try the whole thing again. |
| 6306 | // |
| 6307 | // Note that this leaves room for optimization. We could just |
| 6308 | // memcpy what we already have to the result string. Also, |
| 6309 | // the result string is the last object allocated we could |
| 6310 | // "realloc" it and probably, in the vast majority of cases, |
| 6311 | // extend the existing string to be able to hold the full |
| 6312 | // result. |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 6313 | int next_length = 0; |
| 6314 | if (has_next) { |
| 6315 | next_length = mapping->get(next, 0, chars); |
| 6316 | if (next_length == 0) next_length = 1; |
| 6317 | } |
| 6318 | int current_length = i + char_length + next_length; |
yangguo@chromium.org | 4cd70b4 | 2013-01-04 08:57:54 +0000 | [diff] [blame] | 6319 | while (stream.HasMore()) { |
| 6320 | current = stream.GetNext(); |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 6321 | found_yuml |= (current == yuml_code); |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 6322 | // NOTE: we use 0 as the next character here because, while |
| 6323 | // the next character may affect what a character converts to, |
| 6324 | // it does not in any case affect the length of what it convert |
| 6325 | // to. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6326 | int char_length = mapping->get(current, 0, chars); |
| 6327 | if (char_length == 0) char_length = 1; |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 6328 | current_length += char_length; |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 6329 | if (current_length > Smi::kMaxValue) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6330 | isolate->context()->mark_out_of_memory(); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 6331 | return Failure::OutOfMemoryException(0x13); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 6332 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6333 | } |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 6334 | // Try again with the real length. Return signed if we need |
| 6335 | // to allocate a two-byte string for y-umlaut to uppercase. |
| 6336 | return (found_yuml && !ignore_yuml) ? Smi::FromInt(-current_length) |
| 6337 | : Smi::FromInt(current_length); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6338 | } else { |
| 6339 | for (int j = 0; j < char_length; j++) { |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 6340 | result->Set(i, chars[j]); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6341 | i++; |
| 6342 | } |
| 6343 | has_changed_character = true; |
| 6344 | } |
| 6345 | current = next; |
| 6346 | } |
| 6347 | if (has_changed_character) { |
| 6348 | return result; |
| 6349 | } else { |
| 6350 | // If we didn't actually change anything in doing the conversion |
| 6351 | // we simple return the result and let the converted string |
| 6352 | // become garbage; there is no reason to keep two identical strings |
| 6353 | // alive. |
| 6354 | return s; |
| 6355 | } |
| 6356 | } |
| 6357 | |
| 6358 | |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 6359 | namespace { |
| 6360 | |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 6361 | static const uintptr_t kOneInEveryByte = kUintptrAllBitsSet / 0xFF; |
yangguo@chromium.org | 46a2a51 | 2013-01-18 16:29:40 +0000 | [diff] [blame] | 6362 | static const uintptr_t kAsciiMask = kOneInEveryByte << 7; |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 6363 | |
| 6364 | // Given a word and two range boundaries returns a word with high bit |
| 6365 | // set in every byte iff the corresponding input byte was strictly in |
| 6366 | // the range (m, n). All the other bits in the result are cleared. |
| 6367 | // This function is only useful when it can be inlined and the |
| 6368 | // boundaries are statically known. |
| 6369 | // Requires: all bytes in the input word and the boundaries must be |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 6370 | // ASCII (less than 0x7F). |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 6371 | static inline uintptr_t AsciiRangeMask(uintptr_t w, char m, char n) { |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 6372 | // Use strict inequalities since in edge cases the function could be |
| 6373 | // further simplified. |
yangguo@chromium.org | 46a2a51 | 2013-01-18 16:29:40 +0000 | [diff] [blame] | 6374 | ASSERT(0 < m && m < n); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 6375 | // Has high bit set in every w byte less than n. |
| 6376 | uintptr_t tmp1 = kOneInEveryByte * (0x7F + n) - w; |
| 6377 | // Has high bit set in every w byte greater than m. |
| 6378 | uintptr_t tmp2 = w + kOneInEveryByte * (0x7F - m); |
| 6379 | return (tmp1 & tmp2 & (kOneInEveryByte * 0x80)); |
| 6380 | } |
| 6381 | |
| 6382 | |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 6383 | #ifdef DEBUG |
| 6384 | static bool CheckFastAsciiConvert(char* dst, |
| 6385 | char* src, |
| 6386 | int length, |
| 6387 | bool changed, |
| 6388 | bool is_to_lower) { |
| 6389 | bool expected_changed = false; |
| 6390 | for (int i = 0; i < length; i++) { |
| 6391 | if (dst[i] == src[i]) continue; |
| 6392 | expected_changed = true; |
| 6393 | if (is_to_lower) { |
| 6394 | ASSERT('A' <= src[i] && src[i] <= 'Z'); |
| 6395 | ASSERT(dst[i] == src[i] + ('a' - 'A')); |
| 6396 | } else { |
| 6397 | ASSERT('a' <= src[i] && src[i] <= 'z'); |
| 6398 | ASSERT(dst[i] == src[i] - ('a' - 'A')); |
| 6399 | } |
| 6400 | } |
| 6401 | return (expected_changed == changed); |
| 6402 | } |
| 6403 | #endif |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 6404 | |
| 6405 | |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 6406 | template<class Converter> |
| 6407 | static bool FastAsciiConvert(char* dst, |
| 6408 | char* src, |
| 6409 | int length, |
| 6410 | bool* changed_out) { |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 6411 | #ifdef DEBUG |
| 6412 | char* saved_dst = dst; |
| 6413 | char* saved_src = src; |
| 6414 | #endif |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 6415 | DisallowHeapAllocation no_gc; |
| 6416 | // We rely on the distance between upper and lower case letters |
| 6417 | // being a known power of 2. |
| 6418 | ASSERT('a' - 'A' == (1 << 5)); |
| 6419 | // Boundaries for the range of input characters than require conversion. |
| 6420 | static const char lo = Converter::kIsToLower ? 'A' - 1 : 'a' - 1; |
| 6421 | static const char hi = Converter::kIsToLower ? 'Z' + 1 : 'z' + 1; |
| 6422 | bool changed = false; |
| 6423 | uintptr_t or_acc = 0; |
| 6424 | char* const limit = src + length; |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 6425 | #ifdef V8_HOST_CAN_READ_UNALIGNED |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 6426 | // Process the prefix of the input that requires no conversion one |
| 6427 | // (machine) word at a time. |
| 6428 | while (src <= limit - sizeof(uintptr_t)) { |
| 6429 | uintptr_t w = *reinterpret_cast<uintptr_t*>(src); |
| 6430 | or_acc |= w; |
| 6431 | if (AsciiRangeMask(w, lo, hi) != 0) { |
| 6432 | changed = true; |
| 6433 | break; |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 6434 | } |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 6435 | *reinterpret_cast<uintptr_t*>(dst) = w; |
| 6436 | src += sizeof(uintptr_t); |
| 6437 | dst += sizeof(uintptr_t); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 6438 | } |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 6439 | // Process the remainder of the input performing conversion when |
| 6440 | // required one word at a time. |
| 6441 | while (src <= limit - sizeof(uintptr_t)) { |
| 6442 | uintptr_t w = *reinterpret_cast<uintptr_t*>(src); |
| 6443 | or_acc |= w; |
| 6444 | uintptr_t m = AsciiRangeMask(w, lo, hi); |
| 6445 | // The mask has high (7th) bit set in every byte that needs |
| 6446 | // conversion and we know that the distance between cases is |
| 6447 | // 1 << 5. |
| 6448 | *reinterpret_cast<uintptr_t*>(dst) = w ^ (m >> 2); |
| 6449 | src += sizeof(uintptr_t); |
| 6450 | dst += sizeof(uintptr_t); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 6451 | } |
| 6452 | #endif |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 6453 | // Process the last few bytes of the input (or the whole input if |
| 6454 | // unaligned access is not supported). |
| 6455 | while (src < limit) { |
| 6456 | char c = *src; |
| 6457 | or_acc |= c; |
| 6458 | if (lo < c && c < hi) { |
| 6459 | c ^= (1 << 5); |
| 6460 | changed = true; |
| 6461 | } |
| 6462 | *dst = c; |
| 6463 | ++src; |
| 6464 | ++dst; |
| 6465 | } |
| 6466 | if ((or_acc & kAsciiMask) != 0) { |
| 6467 | return false; |
| 6468 | } |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 6469 | |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 6470 | ASSERT(CheckFastAsciiConvert( |
| 6471 | saved_dst, saved_src, length, changed, Converter::kIsToLower)); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 6472 | |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 6473 | *changed_out = changed; |
| 6474 | return true; |
| 6475 | } |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 6476 | |
| 6477 | } // namespace |
| 6478 | |
| 6479 | |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 6480 | template <class Converter> |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 6481 | MUST_USE_RESULT static MaybeObject* ConvertCase( |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 6482 | Arguments args, |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6483 | Isolate* isolate, |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 6484 | unibrow::Mapping<Converter, 128>* mapping) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 6485 | SealHandleScope shs(isolate); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 6486 | CONVERT_ARG_CHECKED(String, s, 0); |
ricow@chromium.org | 5ad5ace | 2010-06-23 09:06:43 +0000 | [diff] [blame] | 6487 | s = s->TryFlattenGetString(); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 6488 | |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 6489 | const int length = s->length(); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 6490 | // Assume that the string is not empty; we need this assumption later |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 6491 | if (length == 0) return s; |
| 6492 | |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 6493 | // Simpler handling of ASCII strings. |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 6494 | // |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 6495 | // NOTE: This assumes that the upper/lower case of an ASCII |
| 6496 | // character is also ASCII. This is currently the case, but it |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 6497 | // might break in the future if we implement more context and locale |
| 6498 | // dependent upper/lower conversions. |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 6499 | if (s->IsSeqOneByteString()) { |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 6500 | Object* o; |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 6501 | { MaybeObject* maybe_o = isolate->heap()->AllocateRawOneByteString(length); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 6502 | if (!maybe_o->ToObject(&o)) return maybe_o; |
| 6503 | } |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 6504 | SeqOneByteString* result = SeqOneByteString::cast(o); |
yangguo@chromium.org | 46a2a51 | 2013-01-18 16:29:40 +0000 | [diff] [blame] | 6505 | bool has_changed_character; |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 6506 | bool is_ascii = FastAsciiConvert<Converter>( |
yangguo@chromium.org | 46a2a51 | 2013-01-18 16:29:40 +0000 | [diff] [blame] | 6507 | reinterpret_cast<char*>(result->GetChars()), |
| 6508 | reinterpret_cast<char*>(SeqOneByteString::cast(s)->GetChars()), |
| 6509 | length, |
| 6510 | &has_changed_character); |
| 6511 | // If not ASCII, we discard the result and take the 2 byte path. |
| 6512 | if (is_ascii) { |
| 6513 | return has_changed_character ? result : s; |
| 6514 | } |
yangguo@chromium.org | 46a2a51 | 2013-01-18 16:29:40 +0000 | [diff] [blame] | 6515 | } |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 6516 | |
machenbach@chromium.org | 12014a4 | 2013-11-11 16:29:16 +0000 | [diff] [blame] | 6517 | String::Encoding result_encoding = s->IsOneByteRepresentation() |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 6518 | ? String::ONE_BYTE_ENCODING : String::TWO_BYTE_ENCODING; |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 6519 | Object* answer; |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 6520 | { MaybeObject* maybe_answer = ConvertCaseHelper( |
| 6521 | isolate, s, result_encoding, length, length, mapping); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 6522 | if (!maybe_answer->ToObject(&answer)) return maybe_answer; |
| 6523 | } |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 6524 | if (answer->IsSmi()) { |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 6525 | int new_length = Smi::cast(answer)->value(); |
| 6526 | if (new_length < 0) { |
| 6527 | result_encoding = String::TWO_BYTE_ENCODING; |
| 6528 | new_length = -new_length; |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 6529 | } |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 6530 | MaybeObject* maybe_answer = ConvertCaseHelper( |
| 6531 | isolate, s, result_encoding, new_length, length, mapping); |
| 6532 | if (!maybe_answer->ToObject(&answer)) return maybe_answer; |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 6533 | } |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 6534 | return answer; |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 6535 | } |
| 6536 | |
| 6537 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6538 | RUNTIME_FUNCTION(MaybeObject*, Runtime_StringToLowerCase) { |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 6539 | return ConvertCase( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6540 | args, isolate, isolate->runtime_state()->to_lower_mapping()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6541 | } |
| 6542 | |
| 6543 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6544 | RUNTIME_FUNCTION(MaybeObject*, Runtime_StringToUpperCase) { |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 6545 | return ConvertCase( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6546 | args, isolate, isolate->runtime_state()->to_upper_mapping()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6547 | } |
| 6548 | |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 6549 | |
christian.plesner.hansen@gmail.com | 9d58c2b | 2009-10-16 11:48:38 +0000 | [diff] [blame] | 6550 | static inline bool IsTrimWhiteSpace(unibrow::uchar c) { |
svenpanne@chromium.org | a8bb4d9 | 2011-10-10 13:20:40 +0000 | [diff] [blame] | 6551 | return unibrow::WhiteSpace::Is(c) || c == 0x200b || c == 0xfeff; |
christian.plesner.hansen@gmail.com | 9d58c2b | 2009-10-16 11:48:38 +0000 | [diff] [blame] | 6552 | } |
| 6553 | |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 6554 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6555 | RUNTIME_FUNCTION(MaybeObject*, Runtime_StringTrim) { |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 6556 | HandleScope scope(isolate); |
christian.plesner.hansen@gmail.com | 9d58c2b | 2009-10-16 11:48:38 +0000 | [diff] [blame] | 6557 | ASSERT(args.length() == 3); |
| 6558 | |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 6559 | CONVERT_ARG_HANDLE_CHECKED(String, string, 0); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 6560 | CONVERT_BOOLEAN_ARG_CHECKED(trimLeft, 1); |
| 6561 | CONVERT_BOOLEAN_ARG_CHECKED(trimRight, 2); |
christian.plesner.hansen@gmail.com | 9d58c2b | 2009-10-16 11:48:38 +0000 | [diff] [blame] | 6562 | |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 6563 | string = FlattenGetString(string); |
| 6564 | int length = string->length(); |
christian.plesner.hansen@gmail.com | 9d58c2b | 2009-10-16 11:48:38 +0000 | [diff] [blame] | 6565 | |
| 6566 | int left = 0; |
| 6567 | if (trimLeft) { |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 6568 | while (left < length && IsTrimWhiteSpace(string->Get(left))) { |
christian.plesner.hansen@gmail.com | 9d58c2b | 2009-10-16 11:48:38 +0000 | [diff] [blame] | 6569 | left++; |
| 6570 | } |
| 6571 | } |
| 6572 | |
| 6573 | int right = length; |
| 6574 | if (trimRight) { |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 6575 | while (right > left && IsTrimWhiteSpace(string->Get(right - 1))) { |
christian.plesner.hansen@gmail.com | 9d58c2b | 2009-10-16 11:48:38 +0000 | [diff] [blame] | 6576 | right--; |
| 6577 | } |
| 6578 | } |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 6579 | |
| 6580 | return *isolate->factory()->NewSubString(string, left, right); |
christian.plesner.hansen@gmail.com | 9d58c2b | 2009-10-16 11:48:38 +0000 | [diff] [blame] | 6581 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6582 | |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 6583 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6584 | RUNTIME_FUNCTION(MaybeObject*, Runtime_StringSplit) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6585 | HandleScope handle_scope(isolate); |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 6586 | ASSERT(args.length() == 3); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 6587 | CONVERT_ARG_HANDLE_CHECKED(String, subject, 0); |
| 6588 | CONVERT_ARG_HANDLE_CHECKED(String, pattern, 1); |
fschneider@chromium.org | 086aac6 | 2010-03-17 13:18:24 +0000 | [diff] [blame] | 6589 | CONVERT_NUMBER_CHECKED(uint32_t, limit, Uint32, args[2]); |
| 6590 | |
| 6591 | int subject_length = subject->length(); |
| 6592 | int pattern_length = pattern->length(); |
| 6593 | RUNTIME_ASSERT(pattern_length > 0); |
| 6594 | |
jkummerow@chromium.org | 486075a | 2011-09-07 12:44:28 +0000 | [diff] [blame] | 6595 | if (limit == 0xffffffffu) { |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 6596 | Handle<Object> cached_answer( |
| 6597 | RegExpResultsCache::Lookup(isolate->heap(), |
| 6598 | *subject, |
| 6599 | *pattern, |
| 6600 | RegExpResultsCache::STRING_SPLIT_SUBSTRINGS), |
| 6601 | isolate); |
jkummerow@chromium.org | 486075a | 2011-09-07 12:44:28 +0000 | [diff] [blame] | 6602 | if (*cached_answer != Smi::FromInt(0)) { |
jkummerow@chromium.org | 78502a9 | 2012-09-06 13:50:42 +0000 | [diff] [blame] | 6603 | // The cache FixedArray is a COW-array and can therefore be reused. |
jkummerow@chromium.org | 486075a | 2011-09-07 12:44:28 +0000 | [diff] [blame] | 6604 | Handle<JSArray> result = |
| 6605 | isolate->factory()->NewJSArrayWithElements( |
| 6606 | Handle<FixedArray>::cast(cached_answer)); |
| 6607 | return *result; |
| 6608 | } |
| 6609 | } |
| 6610 | |
fschneider@chromium.org | 086aac6 | 2010-03-17 13:18:24 +0000 | [diff] [blame] | 6611 | // The limit can be very large (0xffffffffu), but since the pattern |
| 6612 | // isn't empty, we can never create more parts than ~half the length |
| 6613 | // of the subject. |
| 6614 | |
| 6615 | if (!subject->IsFlat()) FlattenString(subject); |
| 6616 | |
| 6617 | static const int kMaxInitialListCapacity = 16; |
| 6618 | |
machenbach@chromium.org | c1789ee | 2013-07-05 07:09:57 +0000 | [diff] [blame] | 6619 | ZoneScope zone_scope(isolate->runtime_zone()); |
fschneider@chromium.org | 086aac6 | 2010-03-17 13:18:24 +0000 | [diff] [blame] | 6620 | |
| 6621 | // Find (up to limit) indices of separator and end-of-string in subject |
| 6622 | int initial_capacity = Min<uint32_t>(kMaxInitialListCapacity, limit); |
machenbach@chromium.org | c1789ee | 2013-07-05 07:09:57 +0000 | [diff] [blame] | 6623 | ZoneList<int> indices(initial_capacity, zone_scope.zone()); |
ricow@chromium.org | d236f4d | 2010-09-01 06:52:08 +0000 | [diff] [blame] | 6624 | if (!pattern->IsFlat()) FlattenString(pattern); |
| 6625 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 6626 | FindStringIndicesDispatch(isolate, *subject, *pattern, |
machenbach@chromium.org | c1789ee | 2013-07-05 07:09:57 +0000 | [diff] [blame] | 6627 | &indices, limit, zone_scope.zone()); |
ricow@chromium.org | d236f4d | 2010-09-01 06:52:08 +0000 | [diff] [blame] | 6628 | |
fschneider@chromium.org | 086aac6 | 2010-03-17 13:18:24 +0000 | [diff] [blame] | 6629 | if (static_cast<uint32_t>(indices.length()) < limit) { |
machenbach@chromium.org | c1789ee | 2013-07-05 07:09:57 +0000 | [diff] [blame] | 6630 | indices.Add(subject_length, zone_scope.zone()); |
fschneider@chromium.org | 086aac6 | 2010-03-17 13:18:24 +0000 | [diff] [blame] | 6631 | } |
fschneider@chromium.org | 086aac6 | 2010-03-17 13:18:24 +0000 | [diff] [blame] | 6632 | |
ricow@chromium.org | d236f4d | 2010-09-01 06:52:08 +0000 | [diff] [blame] | 6633 | // The list indices now contains the end of each part to create. |
fschneider@chromium.org | 086aac6 | 2010-03-17 13:18:24 +0000 | [diff] [blame] | 6634 | |
| 6635 | // Create JSArray of substrings separated by separator. |
| 6636 | int part_count = indices.length(); |
| 6637 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6638 | Handle<JSArray> result = isolate->factory()->NewJSArray(part_count); |
hpayer@chromium.org | c5d4971 | 2013-09-11 08:25:48 +0000 | [diff] [blame] | 6639 | JSObject::EnsureCanContainHeapObjectElements(result); |
fschneider@chromium.org | 086aac6 | 2010-03-17 13:18:24 +0000 | [diff] [blame] | 6640 | result->set_length(Smi::FromInt(part_count)); |
| 6641 | |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 6642 | ASSERT(result->HasFastObjectElements()); |
fschneider@chromium.org | 086aac6 | 2010-03-17 13:18:24 +0000 | [diff] [blame] | 6643 | |
| 6644 | if (part_count == 1 && indices.at(0) == subject_length) { |
| 6645 | FixedArray::cast(result->elements())->set(0, *subject); |
| 6646 | return *result; |
| 6647 | } |
| 6648 | |
| 6649 | Handle<FixedArray> elements(FixedArray::cast(result->elements())); |
| 6650 | int part_start = 0; |
| 6651 | for (int i = 0; i < part_count; i++) { |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 6652 | HandleScope local_loop_handle(isolate); |
fschneider@chromium.org | 086aac6 | 2010-03-17 13:18:24 +0000 | [diff] [blame] | 6653 | int part_end = indices.at(i); |
| 6654 | Handle<String> substring = |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 6655 | isolate->factory()->NewProperSubString(subject, part_start, part_end); |
fschneider@chromium.org | 086aac6 | 2010-03-17 13:18:24 +0000 | [diff] [blame] | 6656 | elements->set(i, *substring); |
| 6657 | part_start = part_end + pattern_length; |
| 6658 | } |
| 6659 | |
jkummerow@chromium.org | 486075a | 2011-09-07 12:44:28 +0000 | [diff] [blame] | 6660 | if (limit == 0xffffffffu) { |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 6661 | if (result->HasFastObjectElements()) { |
jkummerow@chromium.org | 78502a9 | 2012-09-06 13:50:42 +0000 | [diff] [blame] | 6662 | RegExpResultsCache::Enter(isolate->heap(), |
| 6663 | *subject, |
| 6664 | *pattern, |
| 6665 | *elements, |
| 6666 | RegExpResultsCache::STRING_SPLIT_SUBSTRINGS); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 6667 | } |
jkummerow@chromium.org | 486075a | 2011-09-07 12:44:28 +0000 | [diff] [blame] | 6668 | } |
| 6669 | |
fschneider@chromium.org | 086aac6 | 2010-03-17 13:18:24 +0000 | [diff] [blame] | 6670 | return *result; |
| 6671 | } |
| 6672 | |
| 6673 | |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 6674 | // Copies ASCII characters to the given fixed array looking up |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 6675 | // one-char strings in the cache. Gives up on the first char that is |
| 6676 | // not in the cache and fills the remainder with smi zeros. Returns |
| 6677 | // the length of the successfully copied prefix. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6678 | static int CopyCachedAsciiCharsToArray(Heap* heap, |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 6679 | const uint8_t* chars, |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 6680 | FixedArray* elements, |
| 6681 | int length) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 6682 | DisallowHeapAllocation no_gc; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6683 | FixedArray* ascii_cache = heap->single_character_string_cache(); |
| 6684 | Object* undefined = heap->undefined_value(); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 6685 | int i; |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 6686 | WriteBarrierMode mode = elements->GetWriteBarrierMode(no_gc); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 6687 | for (i = 0; i < length; ++i) { |
| 6688 | Object* value = ascii_cache->get(chars[i]); |
| 6689 | if (value == undefined) break; |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 6690 | elements->set(i, value, mode); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 6691 | } |
| 6692 | if (i < length) { |
| 6693 | ASSERT(Smi::FromInt(0) == 0); |
| 6694 | memset(elements->data_start() + i, 0, kPointerSize * (length - i)); |
| 6695 | } |
| 6696 | #ifdef DEBUG |
| 6697 | for (int j = 0; j < length; ++j) { |
| 6698 | Object* element = elements->get(j); |
| 6699 | ASSERT(element == Smi::FromInt(0) || |
| 6700 | (element->IsString() && String::cast(element)->LooksValid())); |
| 6701 | } |
| 6702 | #endif |
| 6703 | return i; |
| 6704 | } |
| 6705 | |
| 6706 | |
| 6707 | // Converts a String to JSArray. |
| 6708 | // For example, "foo" => ["f", "o", "o"]. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6709 | RUNTIME_FUNCTION(MaybeObject*, Runtime_StringToArray) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6710 | HandleScope scope(isolate); |
ager@chromium.org | beb2571 | 2010-11-29 08:02:25 +0000 | [diff] [blame] | 6711 | ASSERT(args.length() == 2); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 6712 | CONVERT_ARG_HANDLE_CHECKED(String, s, 0); |
ager@chromium.org | beb2571 | 2010-11-29 08:02:25 +0000 | [diff] [blame] | 6713 | CONVERT_NUMBER_CHECKED(uint32_t, limit, Uint32, args[1]); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 6714 | |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 6715 | s = FlattenGetString(s); |
ager@chromium.org | beb2571 | 2010-11-29 08:02:25 +0000 | [diff] [blame] | 6716 | const int length = static_cast<int>(Min<uint32_t>(s->length(), limit)); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 6717 | |
| 6718 | Handle<FixedArray> elements; |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 6719 | int position = 0; |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 6720 | if (s->IsFlat() && s->IsOneByteRepresentation()) { |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 6721 | // Try using cached chars where possible. |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 6722 | Object* obj; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6723 | { MaybeObject* maybe_obj = |
| 6724 | isolate->heap()->AllocateUninitializedFixedArray(length); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 6725 | if (!maybe_obj->ToObject(&obj)) return maybe_obj; |
| 6726 | } |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6727 | elements = Handle<FixedArray>(FixedArray::cast(obj), isolate); |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 6728 | DisallowHeapAllocation no_gc; |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 6729 | String::FlatContent content = s->GetFlatContent(); |
| 6730 | if (content.IsAscii()) { |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 6731 | Vector<const uint8_t> chars = content.ToOneByteVector(); |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 6732 | // Note, this will initialize all elements (not only the prefix) |
| 6733 | // to prevent GC from seeing partially initialized array. |
| 6734 | position = CopyCachedAsciiCharsToArray(isolate->heap(), |
| 6735 | chars.start(), |
| 6736 | *elements, |
| 6737 | length); |
| 6738 | } else { |
| 6739 | MemsetPointer(elements->data_start(), |
| 6740 | isolate->heap()->undefined_value(), |
| 6741 | length); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 6742 | } |
| 6743 | } else { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6744 | elements = isolate->factory()->NewFixedArray(length); |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 6745 | } |
| 6746 | for (int i = position; i < length; ++i) { |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 6747 | Handle<Object> str = |
| 6748 | LookupSingleCharacterStringFromCode(isolate, s->Get(i)); |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 6749 | elements->set(i, *str); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 6750 | } |
| 6751 | |
| 6752 | #ifdef DEBUG |
| 6753 | for (int i = 0; i < length; ++i) { |
| 6754 | ASSERT(String::cast(elements->get(i))->length() == 1); |
| 6755 | } |
| 6756 | #endif |
| 6757 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6758 | return *isolate->factory()->NewJSArrayWithElements(elements); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 6759 | } |
| 6760 | |
| 6761 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6762 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NewStringWrapper) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 6763 | SealHandleScope shs(isolate); |
ricow@chromium.org | d236f4d | 2010-09-01 06:52:08 +0000 | [diff] [blame] | 6764 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 6765 | CONVERT_ARG_CHECKED(String, value, 0); |
jkummerow@chromium.org | 3d00d0a | 2013-09-04 13:57:32 +0000 | [diff] [blame] | 6766 | return value->ToObject(isolate); |
ricow@chromium.org | d236f4d | 2010-09-01 06:52:08 +0000 | [diff] [blame] | 6767 | } |
| 6768 | |
| 6769 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6770 | bool Runtime::IsUpperCaseChar(RuntimeState* runtime_state, uint16_t ch) { |
kasperl@chromium.org | d1e3e72 | 2009-04-14 13:38:25 +0000 | [diff] [blame] | 6771 | unibrow::uchar chars[unibrow::ToUppercase::kMaxWidth]; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6772 | int char_length = runtime_state->to_upper_mapping()->get(ch, 0, chars); |
kasperl@chromium.org | d1e3e72 | 2009-04-14 13:38:25 +0000 | [diff] [blame] | 6773 | return char_length == 0; |
| 6774 | } |
| 6775 | |
| 6776 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6777 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberToString) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 6778 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6779 | ASSERT(args.length() == 1); |
| 6780 | |
| 6781 | Object* number = args[0]; |
| 6782 | RUNTIME_ASSERT(number->IsNumber()); |
| 6783 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6784 | return isolate->heap()->NumberToString(number); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6785 | } |
| 6786 | |
| 6787 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6788 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberToStringSkipCache) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 6789 | SealHandleScope shs(isolate); |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 6790 | ASSERT(args.length() == 1); |
| 6791 | |
| 6792 | Object* number = args[0]; |
| 6793 | RUNTIME_ASSERT(number->IsNumber()); |
| 6794 | |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 6795 | return isolate->heap()->NumberToString( |
| 6796 | number, false, isolate->heap()->GetPretenureMode()); |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 6797 | } |
| 6798 | |
| 6799 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6800 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberToInteger) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 6801 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6802 | ASSERT(args.length() == 1); |
| 6803 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 6804 | CONVERT_DOUBLE_ARG_CHECKED(number, 0); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 6805 | |
| 6806 | // We do not include 0 so that we don't have to treat +0 / -0 cases. |
| 6807 | if (number > 0 && number <= Smi::kMaxValue) { |
| 6808 | return Smi::FromInt(static_cast<int>(number)); |
| 6809 | } |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6810 | return isolate->heap()->NumberFromDouble(DoubleToInteger(number)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6811 | } |
| 6812 | |
| 6813 | |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 6814 | // ES6 draft 9.1.11 |
| 6815 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberToPositiveInteger) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 6816 | SealHandleScope shs(isolate); |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 6817 | ASSERT(args.length() == 1); |
| 6818 | |
| 6819 | CONVERT_DOUBLE_ARG_CHECKED(number, 0); |
| 6820 | |
| 6821 | // We do not include 0 so that we don't have to treat +0 / -0 cases. |
| 6822 | if (number > 0 && number <= Smi::kMaxValue) { |
| 6823 | return Smi::FromInt(static_cast<int>(number)); |
| 6824 | } |
| 6825 | if (number <= 0) { |
| 6826 | return Smi::FromInt(0); |
| 6827 | } |
| 6828 | return isolate->heap()->NumberFromDouble(DoubleToInteger(number)); |
| 6829 | } |
| 6830 | |
| 6831 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6832 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberToIntegerMapMinusZero) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 6833 | SealHandleScope shs(isolate); |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 6834 | ASSERT(args.length() == 1); |
| 6835 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 6836 | CONVERT_DOUBLE_ARG_CHECKED(number, 0); |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 6837 | |
| 6838 | // We do not include 0 so that we don't have to treat +0 / -0 cases. |
| 6839 | if (number > 0 && number <= Smi::kMaxValue) { |
| 6840 | return Smi::FromInt(static_cast<int>(number)); |
| 6841 | } |
| 6842 | |
| 6843 | double double_value = DoubleToInteger(number); |
| 6844 | // Map both -0 and +0 to +0. |
| 6845 | if (double_value == 0) double_value = 0; |
| 6846 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6847 | return isolate->heap()->NumberFromDouble(double_value); |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 6848 | } |
| 6849 | |
| 6850 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6851 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberToJSUint32) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 6852 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6853 | ASSERT(args.length() == 1); |
| 6854 | |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 6855 | CONVERT_NUMBER_CHECKED(int32_t, number, Uint32, args[0]); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6856 | return isolate->heap()->NumberFromUint32(number); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6857 | } |
| 6858 | |
| 6859 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6860 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberToJSInt32) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 6861 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6862 | ASSERT(args.length() == 1); |
| 6863 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 6864 | CONVERT_DOUBLE_ARG_CHECKED(number, 0); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 6865 | |
| 6866 | // We do not include 0 so that we don't have to treat +0 / -0 cases. |
| 6867 | if (number > 0 && number <= Smi::kMaxValue) { |
| 6868 | return Smi::FromInt(static_cast<int>(number)); |
| 6869 | } |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6870 | return isolate->heap()->NumberFromInt32(DoubleToInt32(number)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6871 | } |
| 6872 | |
| 6873 | |
ager@chromium.org | 870a0b6 | 2008-11-04 11:43:05 +0000 | [diff] [blame] | 6874 | // Converts a Number to a Smi, if possible. Returns NaN if the number is not |
| 6875 | // a small integer. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6876 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberToSmi) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 6877 | SealHandleScope shs(isolate); |
ager@chromium.org | 870a0b6 | 2008-11-04 11:43:05 +0000 | [diff] [blame] | 6878 | ASSERT(args.length() == 1); |
| 6879 | |
| 6880 | Object* obj = args[0]; |
| 6881 | if (obj->IsSmi()) { |
| 6882 | return obj; |
| 6883 | } |
| 6884 | if (obj->IsHeapNumber()) { |
| 6885 | double value = HeapNumber::cast(obj)->value(); |
| 6886 | int int_value = FastD2I(value); |
| 6887 | if (value == FastI2D(int_value) && Smi::IsValid(int_value)) { |
| 6888 | return Smi::FromInt(int_value); |
| 6889 | } |
| 6890 | } |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6891 | return isolate->heap()->nan_value(); |
ager@chromium.org | 870a0b6 | 2008-11-04 11:43:05 +0000 | [diff] [blame] | 6892 | } |
| 6893 | |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 6894 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6895 | RUNTIME_FUNCTION(MaybeObject*, Runtime_AllocateHeapNumber) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 6896 | SealHandleScope shs(isolate); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6897 | ASSERT(args.length() == 0); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6898 | return isolate->heap()->AllocateHeapNumber(0); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 6899 | } |
| 6900 | |
| 6901 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6902 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberAdd) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 6903 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6904 | ASSERT(args.length() == 2); |
| 6905 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 6906 | CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
| 6907 | CONVERT_DOUBLE_ARG_CHECKED(y, 1); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6908 | return isolate->heap()->NumberFromDouble(x + y); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6909 | } |
| 6910 | |
| 6911 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6912 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberSub) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 6913 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6914 | ASSERT(args.length() == 2); |
| 6915 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 6916 | CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
| 6917 | CONVERT_DOUBLE_ARG_CHECKED(y, 1); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6918 | return isolate->heap()->NumberFromDouble(x - y); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6919 | } |
| 6920 | |
| 6921 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6922 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberMul) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 6923 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6924 | ASSERT(args.length() == 2); |
| 6925 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 6926 | CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
| 6927 | CONVERT_DOUBLE_ARG_CHECKED(y, 1); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6928 | return isolate->heap()->NumberFromDouble(x * y); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6929 | } |
| 6930 | |
| 6931 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6932 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberUnaryMinus) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 6933 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6934 | ASSERT(args.length() == 1); |
| 6935 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 6936 | CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6937 | return isolate->heap()->NumberFromDouble(-x); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6938 | } |
| 6939 | |
| 6940 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6941 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberAlloc) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 6942 | SealHandleScope shs(isolate); |
ager@chromium.org | 6a2b0aa | 2010-07-13 20:58:03 +0000 | [diff] [blame] | 6943 | ASSERT(args.length() == 0); |
| 6944 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6945 | return isolate->heap()->NumberFromDouble(9876543210.0); |
ager@chromium.org | 6a2b0aa | 2010-07-13 20:58:03 +0000 | [diff] [blame] | 6946 | } |
| 6947 | |
| 6948 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6949 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberDiv) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 6950 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6951 | ASSERT(args.length() == 2); |
| 6952 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 6953 | CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
| 6954 | CONVERT_DOUBLE_ARG_CHECKED(y, 1); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6955 | return isolate->heap()->NumberFromDouble(x / y); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6956 | } |
| 6957 | |
| 6958 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6959 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberMod) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 6960 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6961 | ASSERT(args.length() == 2); |
| 6962 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 6963 | CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
| 6964 | CONVERT_DOUBLE_ARG_CHECKED(y, 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6965 | |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 6966 | x = modulo(x, y); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 6967 | // NumberFromDouble may return a Smi instead of a Number object |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6968 | return isolate->heap()->NumberFromDouble(x); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6969 | } |
| 6970 | |
| 6971 | |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 6972 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberImul) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 6973 | SealHandleScope shs(isolate); |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 6974 | ASSERT(args.length() == 2); |
| 6975 | |
| 6976 | CONVERT_NUMBER_CHECKED(int32_t, x, Int32, args[0]); |
| 6977 | CONVERT_NUMBER_CHECKED(int32_t, y, Int32, args[1]); |
| 6978 | return isolate->heap()->NumberFromInt32(x * y); |
| 6979 | } |
| 6980 | |
| 6981 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 6982 | RUNTIME_FUNCTION(MaybeObject*, Runtime_StringAdd) { |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 6983 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6984 | ASSERT(args.length() == 2); |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 6985 | CONVERT_ARG_HANDLE_CHECKED(String, str1, 0); |
| 6986 | CONVERT_ARG_HANDLE_CHECKED(String, str2, 1); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 6987 | isolate->counters()->string_add_runtime()->Increment(); |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 6988 | return *isolate->factory()->NewConsString(str1, str2); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 6989 | } |
| 6990 | |
| 6991 | |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 6992 | template <typename sinkchar> |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 6993 | static inline void StringBuilderConcatHelper(String* special, |
| 6994 | sinkchar* sink, |
| 6995 | FixedArray* fixed_array, |
| 6996 | int array_length) { |
| 6997 | int position = 0; |
| 6998 | for (int i = 0; i < array_length; i++) { |
| 6999 | Object* element = fixed_array->get(i); |
| 7000 | if (element->IsSmi()) { |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 7001 | // Smi encoding of position and length. |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 7002 | int encoded_slice = Smi::cast(element)->value(); |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 7003 | int pos; |
| 7004 | int len; |
| 7005 | if (encoded_slice > 0) { |
| 7006 | // Position and length encoded in one smi. |
| 7007 | pos = StringBuilderSubstringPosition::decode(encoded_slice); |
| 7008 | len = StringBuilderSubstringLength::decode(encoded_slice); |
| 7009 | } else { |
| 7010 | // Position and length encoded in two smis. |
| 7011 | Object* obj = fixed_array->get(++i); |
| 7012 | ASSERT(obj->IsSmi()); |
| 7013 | pos = Smi::cast(obj)->value(); |
| 7014 | len = -encoded_slice; |
| 7015 | } |
ager@chromium.org | 870a0b6 | 2008-11-04 11:43:05 +0000 | [diff] [blame] | 7016 | String::WriteToFlat(special, |
ager@chromium.org | 870a0b6 | 2008-11-04 11:43:05 +0000 | [diff] [blame] | 7017 | sink + position, |
| 7018 | pos, |
| 7019 | pos + len); |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 7020 | position += len; |
| 7021 | } else { |
| 7022 | String* string = String::cast(element); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 7023 | int element_length = string->length(); |
| 7024 | String::WriteToFlat(string, sink + position, 0, element_length); |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 7025 | position += element_length; |
| 7026 | } |
| 7027 | } |
| 7028 | } |
| 7029 | |
| 7030 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 7031 | RUNTIME_FUNCTION(MaybeObject*, Runtime_StringBuilderConcat) { |
hpayer@chromium.org | c5d4971 | 2013-09-11 08:25:48 +0000 | [diff] [blame] | 7032 | HandleScope scope(isolate); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 7033 | ASSERT(args.length() == 3); |
hpayer@chromium.org | c5d4971 | 2013-09-11 08:25:48 +0000 | [diff] [blame] | 7034 | CONVERT_ARG_HANDLE_CHECKED(JSArray, array, 0); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 7035 | if (!args[1]->IsSmi()) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7036 | isolate->context()->mark_out_of_memory(); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 7037 | return Failure::OutOfMemoryException(0x14); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 7038 | } |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 7039 | int array_length = args.smi_at(1); |
hpayer@chromium.org | c5d4971 | 2013-09-11 08:25:48 +0000 | [diff] [blame] | 7040 | CONVERT_ARG_HANDLE_CHECKED(String, special, 2); |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 7041 | |
| 7042 | // This assumption is used by the slice encoding in one or two smis. |
| 7043 | ASSERT(Smi::kMaxValue >= String::kMaxLength); |
| 7044 | |
hpayer@chromium.org | c5d4971 | 2013-09-11 08:25:48 +0000 | [diff] [blame] | 7045 | JSObject::EnsureCanContainHeapObjectElements(array); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 7046 | |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 7047 | int special_length = special->length(); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 7048 | if (!array->HasFastObjectElements()) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 7049 | return isolate->Throw(isolate->heap()->illegal_argument_string()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7050 | } |
| 7051 | FixedArray* fixed_array = FixedArray::cast(array->elements()); |
mads.s.ager@gmail.com | 9a4089a | 2008-09-01 08:55:01 +0000 | [diff] [blame] | 7052 | if (fixed_array->length() < array_length) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7053 | array_length = fixed_array->length(); |
mads.s.ager@gmail.com | 9a4089a | 2008-09-01 08:55:01 +0000 | [diff] [blame] | 7054 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7055 | |
| 7056 | if (array_length == 0) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7057 | return isolate->heap()->empty_string(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7058 | } else if (array_length == 1) { |
| 7059 | Object* first = fixed_array->get(0); |
| 7060 | if (first->IsString()) return first; |
| 7061 | } |
| 7062 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 7063 | bool one_byte = special->HasOnlyOneByteChars(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7064 | int position = 0; |
| 7065 | for (int i = 0; i < array_length; i++) { |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 7066 | int increment = 0; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7067 | Object* elt = fixed_array->get(i); |
| 7068 | if (elt->IsSmi()) { |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 7069 | // Smi encoding of position and length. |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 7070 | int smi_value = Smi::cast(elt)->value(); |
| 7071 | int pos; |
| 7072 | int len; |
| 7073 | if (smi_value > 0) { |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 7074 | // Position and length encoded in one smi. |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 7075 | pos = StringBuilderSubstringPosition::decode(smi_value); |
| 7076 | len = StringBuilderSubstringLength::decode(smi_value); |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 7077 | } else { |
| 7078 | // Position and length encoded in two smis. |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 7079 | len = -smi_value; |
| 7080 | // Get the position and check that it is a positive smi. |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 7081 | i++; |
| 7082 | if (i >= array_length) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 7083 | return isolate->Throw(isolate->heap()->illegal_argument_string()); |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 7084 | } |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 7085 | Object* next_smi = fixed_array->get(i); |
| 7086 | if (!next_smi->IsSmi()) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 7087 | return isolate->Throw(isolate->heap()->illegal_argument_string()); |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 7088 | } |
| 7089 | pos = Smi::cast(next_smi)->value(); |
| 7090 | if (pos < 0) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 7091 | return isolate->Throw(isolate->heap()->illegal_argument_string()); |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 7092 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7093 | } |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 7094 | ASSERT(pos >= 0); |
| 7095 | ASSERT(len >= 0); |
| 7096 | if (pos > special_length || len > special_length - pos) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 7097 | return isolate->Throw(isolate->heap()->illegal_argument_string()); |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 7098 | } |
| 7099 | increment = len; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7100 | } else if (elt->IsString()) { |
| 7101 | String* element = String::cast(elt); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 7102 | int element_length = element->length(); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 7103 | increment = element_length; |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 7104 | if (one_byte && !element->HasOnlyOneByteChars()) { |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 7105 | one_byte = false; |
mads.s.ager@gmail.com | 9a4089a | 2008-09-01 08:55:01 +0000 | [diff] [blame] | 7106 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7107 | } else { |
rossberg@chromium.org | 2c067b1 | 2012-03-19 11:01:52 +0000 | [diff] [blame] | 7108 | ASSERT(!elt->IsTheHole()); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 7109 | return isolate->Throw(isolate->heap()->illegal_argument_string()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7110 | } |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 7111 | if (increment > String::kMaxLength - position) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7112 | isolate->context()->mark_out_of_memory(); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 7113 | return Failure::OutOfMemoryException(0x15); |
christian.plesner.hansen@gmail.com | 9d58c2b | 2009-10-16 11:48:38 +0000 | [diff] [blame] | 7114 | } |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 7115 | position += increment; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7116 | } |
| 7117 | |
| 7118 | int length = position; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7119 | Object* object; |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 7120 | |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 7121 | if (one_byte) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7122 | { MaybeObject* maybe_object = |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 7123 | isolate->heap()->AllocateRawOneByteString(length); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 7124 | if (!maybe_object->ToObject(&object)) return maybe_object; |
| 7125 | } |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 7126 | SeqOneByteString* answer = SeqOneByteString::cast(object); |
hpayer@chromium.org | c5d4971 | 2013-09-11 08:25:48 +0000 | [diff] [blame] | 7127 | StringBuilderConcatHelper(*special, |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 7128 | answer->GetChars(), |
| 7129 | fixed_array, |
| 7130 | array_length); |
| 7131 | return answer; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7132 | } else { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7133 | { MaybeObject* maybe_object = |
| 7134 | isolate->heap()->AllocateRawTwoByteString(length); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 7135 | if (!maybe_object->ToObject(&object)) return maybe_object; |
| 7136 | } |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 7137 | SeqTwoByteString* answer = SeqTwoByteString::cast(object); |
hpayer@chromium.org | c5d4971 | 2013-09-11 08:25:48 +0000 | [diff] [blame] | 7138 | StringBuilderConcatHelper(*special, |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 7139 | answer->GetChars(), |
| 7140 | fixed_array, |
| 7141 | array_length); |
| 7142 | return answer; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7143 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7144 | } |
| 7145 | |
| 7146 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 7147 | RUNTIME_FUNCTION(MaybeObject*, Runtime_StringBuilderJoin) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 7148 | SealHandleScope shs(isolate); |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 7149 | ASSERT(args.length() == 3); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 7150 | CONVERT_ARG_CHECKED(JSArray, array, 0); |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 7151 | if (!args[1]->IsSmi()) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7152 | isolate->context()->mark_out_of_memory(); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 7153 | return Failure::OutOfMemoryException(0x16); |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 7154 | } |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 7155 | int array_length = args.smi_at(1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 7156 | CONVERT_ARG_CHECKED(String, separator, 2); |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 7157 | |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 7158 | if (!array->HasFastObjectElements()) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 7159 | return isolate->Throw(isolate->heap()->illegal_argument_string()); |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 7160 | } |
| 7161 | FixedArray* fixed_array = FixedArray::cast(array->elements()); |
| 7162 | if (fixed_array->length() < array_length) { |
| 7163 | array_length = fixed_array->length(); |
| 7164 | } |
| 7165 | |
| 7166 | if (array_length == 0) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7167 | return isolate->heap()->empty_string(); |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 7168 | } else if (array_length == 1) { |
| 7169 | Object* first = fixed_array->get(0); |
| 7170 | if (first->IsString()) return first; |
| 7171 | } |
| 7172 | |
| 7173 | int separator_length = separator->length(); |
| 7174 | int max_nof_separators = |
| 7175 | (String::kMaxLength + separator_length - 1) / separator_length; |
| 7176 | if (max_nof_separators < (array_length - 1)) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7177 | isolate->context()->mark_out_of_memory(); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 7178 | return Failure::OutOfMemoryException(0x17); |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 7179 | } |
| 7180 | int length = (array_length - 1) * separator_length; |
| 7181 | for (int i = 0; i < array_length; i++) { |
| 7182 | Object* element_obj = fixed_array->get(i); |
| 7183 | if (!element_obj->IsString()) { |
| 7184 | // TODO(1161): handle this case. |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 7185 | return isolate->Throw(isolate->heap()->illegal_argument_string()); |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 7186 | } |
| 7187 | String* element = String::cast(element_obj); |
| 7188 | int increment = element->length(); |
| 7189 | if (increment > String::kMaxLength - length) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7190 | isolate->context()->mark_out_of_memory(); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 7191 | return Failure::OutOfMemoryException(0x18); |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 7192 | } |
| 7193 | length += increment; |
| 7194 | } |
| 7195 | |
| 7196 | Object* object; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7197 | { MaybeObject* maybe_object = |
| 7198 | isolate->heap()->AllocateRawTwoByteString(length); |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 7199 | if (!maybe_object->ToObject(&object)) return maybe_object; |
| 7200 | } |
| 7201 | SeqTwoByteString* answer = SeqTwoByteString::cast(object); |
| 7202 | |
| 7203 | uc16* sink = answer->GetChars(); |
| 7204 | #ifdef DEBUG |
| 7205 | uc16* end = sink + length; |
| 7206 | #endif |
| 7207 | |
| 7208 | String* first = String::cast(fixed_array->get(0)); |
| 7209 | int first_length = first->length(); |
| 7210 | String::WriteToFlat(first, sink, 0, first_length); |
| 7211 | sink += first_length; |
| 7212 | |
| 7213 | for (int i = 1; i < array_length; i++) { |
| 7214 | ASSERT(sink + separator_length <= end); |
| 7215 | String::WriteToFlat(separator, sink, 0, separator_length); |
| 7216 | sink += separator_length; |
| 7217 | |
| 7218 | String* element = String::cast(fixed_array->get(i)); |
| 7219 | int element_length = element->length(); |
| 7220 | ASSERT(sink + element_length <= end); |
| 7221 | String::WriteToFlat(element, sink, 0, element_length); |
| 7222 | sink += element_length; |
| 7223 | } |
| 7224 | ASSERT(sink == end); |
| 7225 | |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 7226 | // Use %_FastAsciiArrayJoin instead. |
| 7227 | ASSERT(!answer->IsOneByteRepresentation()); |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 7228 | return answer; |
| 7229 | } |
| 7230 | |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 7231 | template <typename Char> |
| 7232 | static void JoinSparseArrayWithSeparator(FixedArray* elements, |
| 7233 | int elements_length, |
| 7234 | uint32_t array_length, |
| 7235 | String* separator, |
| 7236 | Vector<Char> buffer) { |
| 7237 | int previous_separator_position = 0; |
| 7238 | int separator_length = separator->length(); |
| 7239 | int cursor = 0; |
| 7240 | for (int i = 0; i < elements_length; i += 2) { |
| 7241 | int position = NumberToInt32(elements->get(i)); |
| 7242 | String* string = String::cast(elements->get(i + 1)); |
| 7243 | int string_length = string->length(); |
| 7244 | if (string->length() > 0) { |
| 7245 | while (previous_separator_position < position) { |
| 7246 | String::WriteToFlat<Char>(separator, &buffer[cursor], |
| 7247 | 0, separator_length); |
| 7248 | cursor += separator_length; |
| 7249 | previous_separator_position++; |
| 7250 | } |
| 7251 | String::WriteToFlat<Char>(string, &buffer[cursor], |
| 7252 | 0, string_length); |
| 7253 | cursor += string->length(); |
| 7254 | } |
| 7255 | } |
| 7256 | if (separator_length > 0) { |
| 7257 | // Array length must be representable as a signed 32-bit number, |
| 7258 | // otherwise the total string length would have been too large. |
| 7259 | ASSERT(array_length <= 0x7fffffff); // Is int32_t. |
| 7260 | int last_array_index = static_cast<int>(array_length - 1); |
| 7261 | while (previous_separator_position < last_array_index) { |
| 7262 | String::WriteToFlat<Char>(separator, &buffer[cursor], |
| 7263 | 0, separator_length); |
| 7264 | cursor += separator_length; |
| 7265 | previous_separator_position++; |
| 7266 | } |
| 7267 | } |
| 7268 | ASSERT(cursor <= buffer.length()); |
| 7269 | } |
| 7270 | |
| 7271 | |
| 7272 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SparseJoinWithSeparator) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 7273 | SealHandleScope shs(isolate); |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 7274 | ASSERT(args.length() == 3); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 7275 | CONVERT_ARG_CHECKED(JSArray, elements_array, 0); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 7276 | RUNTIME_ASSERT(elements_array->HasFastSmiOrObjectElements()); |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 7277 | CONVERT_NUMBER_CHECKED(uint32_t, array_length, Uint32, args[1]); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 7278 | CONVERT_ARG_CHECKED(String, separator, 2); |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 7279 | // elements_array is fast-mode JSarray of alternating positions |
| 7280 | // (increasing order) and strings. |
| 7281 | // array_length is length of original array (used to add separators); |
| 7282 | // separator is string to put between elements. Assumed to be non-empty. |
| 7283 | |
| 7284 | // Find total length of join result. |
| 7285 | int string_length = 0; |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 7286 | bool is_ascii = separator->IsOneByteRepresentation(); |
jkummerow@chromium.org | 04e4f1e | 2011-11-14 13:36:17 +0000 | [diff] [blame] | 7287 | int max_string_length; |
| 7288 | if (is_ascii) { |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 7289 | max_string_length = SeqOneByteString::kMaxLength; |
jkummerow@chromium.org | 04e4f1e | 2011-11-14 13:36:17 +0000 | [diff] [blame] | 7290 | } else { |
| 7291 | max_string_length = SeqTwoByteString::kMaxLength; |
| 7292 | } |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 7293 | bool overflow = false; |
| 7294 | CONVERT_NUMBER_CHECKED(int, elements_length, |
| 7295 | Int32, elements_array->length()); |
| 7296 | RUNTIME_ASSERT((elements_length & 1) == 0); // Even length. |
| 7297 | FixedArray* elements = FixedArray::cast(elements_array->elements()); |
| 7298 | for (int i = 0; i < elements_length; i += 2) { |
| 7299 | RUNTIME_ASSERT(elements->get(i)->IsNumber()); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 7300 | RUNTIME_ASSERT(elements->get(i + 1)->IsString()); |
| 7301 | String* string = String::cast(elements->get(i + 1)); |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 7302 | int length = string->length(); |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 7303 | if (is_ascii && !string->IsOneByteRepresentation()) { |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 7304 | is_ascii = false; |
| 7305 | max_string_length = SeqTwoByteString::kMaxLength; |
| 7306 | } |
| 7307 | if (length > max_string_length || |
| 7308 | max_string_length - length < string_length) { |
| 7309 | overflow = true; |
| 7310 | break; |
| 7311 | } |
| 7312 | string_length += length; |
| 7313 | } |
| 7314 | int separator_length = separator->length(); |
| 7315 | if (!overflow && separator_length > 0) { |
| 7316 | if (array_length <= 0x7fffffffu) { |
| 7317 | int separator_count = static_cast<int>(array_length) - 1; |
| 7318 | int remaining_length = max_string_length - string_length; |
| 7319 | if ((remaining_length / separator_length) >= separator_count) { |
| 7320 | string_length += separator_length * (array_length - 1); |
| 7321 | } else { |
| 7322 | // Not room for the separators within the maximal string length. |
| 7323 | overflow = true; |
| 7324 | } |
| 7325 | } else { |
| 7326 | // Nonempty separator and at least 2^31-1 separators necessary |
| 7327 | // means that the string is too large to create. |
| 7328 | STATIC_ASSERT(String::kMaxLength < 0x7fffffff); |
| 7329 | overflow = true; |
| 7330 | } |
| 7331 | } |
| 7332 | if (overflow) { |
| 7333 | // Throw OutOfMemory exception for creating too large a string. |
| 7334 | V8::FatalProcessOutOfMemory("Array join result too large."); |
| 7335 | } |
| 7336 | |
| 7337 | if (is_ascii) { |
| 7338 | MaybeObject* result_allocation = |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 7339 | isolate->heap()->AllocateRawOneByteString(string_length); |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 7340 | if (result_allocation->IsFailure()) return result_allocation; |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 7341 | SeqOneByteString* result_string = |
| 7342 | SeqOneByteString::cast(result_allocation->ToObjectUnchecked()); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 7343 | JoinSparseArrayWithSeparator<uint8_t>(elements, |
| 7344 | elements_length, |
| 7345 | array_length, |
| 7346 | separator, |
| 7347 | Vector<uint8_t>( |
| 7348 | result_string->GetChars(), |
| 7349 | string_length)); |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 7350 | return result_string; |
| 7351 | } else { |
| 7352 | MaybeObject* result_allocation = |
| 7353 | isolate->heap()->AllocateRawTwoByteString(string_length); |
| 7354 | if (result_allocation->IsFailure()) return result_allocation; |
| 7355 | SeqTwoByteString* result_string = |
| 7356 | SeqTwoByteString::cast(result_allocation->ToObjectUnchecked()); |
| 7357 | JoinSparseArrayWithSeparator<uc16>(elements, |
| 7358 | elements_length, |
| 7359 | array_length, |
| 7360 | separator, |
| 7361 | Vector<uc16>(result_string->GetChars(), |
| 7362 | string_length)); |
| 7363 | return result_string; |
| 7364 | } |
| 7365 | } |
| 7366 | |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 7367 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 7368 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberOr) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 7369 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7370 | ASSERT(args.length() == 2); |
| 7371 | |
| 7372 | CONVERT_NUMBER_CHECKED(int32_t, x, Int32, args[0]); |
| 7373 | CONVERT_NUMBER_CHECKED(int32_t, y, Int32, args[1]); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7374 | return isolate->heap()->NumberFromInt32(x | y); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7375 | } |
| 7376 | |
| 7377 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 7378 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberAnd) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 7379 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7380 | ASSERT(args.length() == 2); |
| 7381 | |
| 7382 | CONVERT_NUMBER_CHECKED(int32_t, x, Int32, args[0]); |
| 7383 | CONVERT_NUMBER_CHECKED(int32_t, y, Int32, args[1]); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7384 | return isolate->heap()->NumberFromInt32(x & y); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7385 | } |
| 7386 | |
| 7387 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 7388 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberXor) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 7389 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7390 | ASSERT(args.length() == 2); |
| 7391 | |
| 7392 | CONVERT_NUMBER_CHECKED(int32_t, x, Int32, args[0]); |
| 7393 | CONVERT_NUMBER_CHECKED(int32_t, y, Int32, args[1]); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7394 | return isolate->heap()->NumberFromInt32(x ^ y); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7395 | } |
| 7396 | |
| 7397 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 7398 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberShl) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 7399 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7400 | ASSERT(args.length() == 2); |
| 7401 | |
| 7402 | CONVERT_NUMBER_CHECKED(int32_t, x, Int32, args[0]); |
| 7403 | CONVERT_NUMBER_CHECKED(int32_t, y, Int32, args[1]); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7404 | return isolate->heap()->NumberFromInt32(x << (y & 0x1f)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7405 | } |
| 7406 | |
| 7407 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 7408 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberShr) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 7409 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7410 | ASSERT(args.length() == 2); |
| 7411 | |
| 7412 | CONVERT_NUMBER_CHECKED(uint32_t, x, Uint32, args[0]); |
| 7413 | CONVERT_NUMBER_CHECKED(int32_t, y, Int32, args[1]); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7414 | return isolate->heap()->NumberFromUint32(x >> (y & 0x1f)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7415 | } |
| 7416 | |
| 7417 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 7418 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberSar) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 7419 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7420 | ASSERT(args.length() == 2); |
| 7421 | |
| 7422 | CONVERT_NUMBER_CHECKED(int32_t, x, Int32, args[0]); |
| 7423 | CONVERT_NUMBER_CHECKED(int32_t, y, Int32, args[1]); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7424 | return isolate->heap()->NumberFromInt32(ArithmeticShiftRight(x, y & 0x1f)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7425 | } |
| 7426 | |
| 7427 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 7428 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberEquals) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 7429 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7430 | ASSERT(args.length() == 2); |
| 7431 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 7432 | CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
| 7433 | CONVERT_DOUBLE_ARG_CHECKED(y, 1); |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 7434 | if (std::isnan(x)) return Smi::FromInt(NOT_EQUAL); |
| 7435 | if (std::isnan(y)) return Smi::FromInt(NOT_EQUAL); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7436 | if (x == y) return Smi::FromInt(EQUAL); |
| 7437 | Object* result; |
| 7438 | if ((fpclassify(x) == FP_ZERO) && (fpclassify(y) == FP_ZERO)) { |
| 7439 | result = Smi::FromInt(EQUAL); |
| 7440 | } else { |
| 7441 | result = Smi::FromInt(NOT_EQUAL); |
| 7442 | } |
| 7443 | return result; |
| 7444 | } |
| 7445 | |
| 7446 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 7447 | RUNTIME_FUNCTION(MaybeObject*, Runtime_StringEquals) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 7448 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7449 | ASSERT(args.length() == 2); |
| 7450 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 7451 | CONVERT_ARG_CHECKED(String, x, 0); |
| 7452 | CONVERT_ARG_CHECKED(String, y, 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7453 | |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 7454 | bool not_equal = !x->Equals(y); |
| 7455 | // This is slightly convoluted because the value that signifies |
| 7456 | // equality is 0 and inequality is 1 so we have to negate the result |
| 7457 | // from String::Equals. |
| 7458 | ASSERT(not_equal == 0 || not_equal == 1); |
| 7459 | STATIC_CHECK(EQUAL == 0); |
| 7460 | STATIC_CHECK(NOT_EQUAL == 1); |
| 7461 | return Smi::FromInt(not_equal); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7462 | } |
| 7463 | |
| 7464 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 7465 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberCompare) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 7466 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7467 | ASSERT(args.length() == 3); |
| 7468 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 7469 | CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
| 7470 | CONVERT_DOUBLE_ARG_CHECKED(y, 1); |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 7471 | if (std::isnan(x) || std::isnan(y)) return args[2]; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7472 | if (x == y) return Smi::FromInt(EQUAL); |
| 7473 | if (isless(x, y)) return Smi::FromInt(LESS); |
| 7474 | return Smi::FromInt(GREATER); |
| 7475 | } |
| 7476 | |
| 7477 | |
ager@chromium.org | 9258b6b | 2008-09-11 09:11:10 +0000 | [diff] [blame] | 7478 | // Compare two Smis as if they were converted to strings and then |
| 7479 | // compared lexicographically. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 7480 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SmiLexicographicCompare) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 7481 | SealHandleScope shs(isolate); |
ager@chromium.org | 9258b6b | 2008-09-11 09:11:10 +0000 | [diff] [blame] | 7482 | ASSERT(args.length() == 2); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 7483 | CONVERT_SMI_ARG_CHECKED(x_value, 0); |
| 7484 | CONVERT_SMI_ARG_CHECKED(y_value, 1); |
ager@chromium.org | 9258b6b | 2008-09-11 09:11:10 +0000 | [diff] [blame] | 7485 | |
| 7486 | // If the integers are equal so are the string representations. |
| 7487 | if (x_value == y_value) return Smi::FromInt(EQUAL); |
| 7488 | |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 7489 | // If one of the integers is zero the normal integer order is the |
ager@chromium.org | 9258b6b | 2008-09-11 09:11:10 +0000 | [diff] [blame] | 7490 | // same as the lexicographic order of the string representations. |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 7491 | if (x_value == 0 || y_value == 0) |
| 7492 | return Smi::FromInt(x_value < y_value ? LESS : GREATER); |
ager@chromium.org | 9258b6b | 2008-09-11 09:11:10 +0000 | [diff] [blame] | 7493 | |
ager@chromium.org | 3291210 | 2009-01-16 10:38:43 +0000 | [diff] [blame] | 7494 | // If only one of the integers is negative the negative number is |
ager@chromium.org | 9258b6b | 2008-09-11 09:11:10 +0000 | [diff] [blame] | 7495 | // smallest because the char code of '-' is less than the char code |
| 7496 | // of any digit. Otherwise, we make both values positive. |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 7497 | |
| 7498 | // Use unsigned values otherwise the logic is incorrect for -MIN_INT on |
| 7499 | // architectures using 32-bit Smis. |
| 7500 | uint32_t x_scaled = x_value; |
| 7501 | uint32_t y_scaled = y_value; |
ager@chromium.org | 9258b6b | 2008-09-11 09:11:10 +0000 | [diff] [blame] | 7502 | if (x_value < 0 || y_value < 0) { |
| 7503 | if (y_value >= 0) return Smi::FromInt(LESS); |
| 7504 | if (x_value >= 0) return Smi::FromInt(GREATER); |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 7505 | x_scaled = -x_value; |
| 7506 | y_scaled = -y_value; |
ager@chromium.org | 9258b6b | 2008-09-11 09:11:10 +0000 | [diff] [blame] | 7507 | } |
| 7508 | |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 7509 | static const uint32_t kPowersOf10[] = { |
| 7510 | 1, 10, 100, 1000, 10*1000, 100*1000, |
| 7511 | 1000*1000, 10*1000*1000, 100*1000*1000, |
| 7512 | 1000*1000*1000 |
| 7513 | }; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7514 | |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 7515 | // If the integers have the same number of decimal digits they can be |
| 7516 | // compared directly as the numeric order is the same as the |
| 7517 | // lexicographic order. If one integer has fewer digits, it is scaled |
| 7518 | // by some power of 10 to have the same number of digits as the longer |
| 7519 | // integer. If the scaled integers are equal it means the shorter |
| 7520 | // integer comes first in the lexicographic order. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7521 | |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 7522 | // From http://graphics.stanford.edu/~seander/bithacks.html#IntegerLog10 |
| 7523 | int x_log2 = IntegerLog2(x_scaled); |
| 7524 | int x_log10 = ((x_log2 + 1) * 1233) >> 12; |
| 7525 | x_log10 -= x_scaled < kPowersOf10[x_log10]; |
| 7526 | |
| 7527 | int y_log2 = IntegerLog2(y_scaled); |
| 7528 | int y_log10 = ((y_log2 + 1) * 1233) >> 12; |
| 7529 | y_log10 -= y_scaled < kPowersOf10[y_log10]; |
| 7530 | |
| 7531 | int tie = EQUAL; |
| 7532 | |
| 7533 | if (x_log10 < y_log10) { |
| 7534 | // X has fewer digits. We would like to simply scale up X but that |
| 7535 | // might overflow, e.g when comparing 9 with 1_000_000_000, 9 would |
| 7536 | // be scaled up to 9_000_000_000. So we scale up by the next |
| 7537 | // smallest power and scale down Y to drop one digit. It is OK to |
| 7538 | // drop one digit from the longer integer since the final digit is |
| 7539 | // past the length of the shorter integer. |
| 7540 | x_scaled *= kPowersOf10[y_log10 - x_log10 - 1]; |
| 7541 | y_scaled /= 10; |
| 7542 | tie = LESS; |
| 7543 | } else if (y_log10 < x_log10) { |
| 7544 | y_scaled *= kPowersOf10[x_log10 - y_log10 - 1]; |
| 7545 | x_scaled /= 10; |
| 7546 | tie = GREATER; |
ager@chromium.org | 9258b6b | 2008-09-11 09:11:10 +0000 | [diff] [blame] | 7547 | } |
| 7548 | |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 7549 | if (x_scaled < y_scaled) return Smi::FromInt(LESS); |
| 7550 | if (x_scaled > y_scaled) return Smi::FromInt(GREATER); |
| 7551 | return Smi::FromInt(tie); |
ager@chromium.org | 9258b6b | 2008-09-11 09:11:10 +0000 | [diff] [blame] | 7552 | } |
| 7553 | |
| 7554 | |
yangguo@chromium.org | 4cd70b4 | 2013-01-04 08:57:54 +0000 | [diff] [blame] | 7555 | static Object* StringCharacterStreamCompare(RuntimeState* state, |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7556 | String* x, |
| 7557 | String* y) { |
yangguo@chromium.org | 4cd70b4 | 2013-01-04 08:57:54 +0000 | [diff] [blame] | 7558 | StringCharacterStream stream_x(x, state->string_iterator_compare_x()); |
| 7559 | StringCharacterStream stream_y(y, state->string_iterator_compare_y()); |
| 7560 | while (stream_x.HasMore() && stream_y.HasMore()) { |
| 7561 | int d = stream_x.GetNext() - stream_y.GetNext(); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 7562 | if (d < 0) return Smi::FromInt(LESS); |
| 7563 | else if (d > 0) return Smi::FromInt(GREATER); |
| 7564 | } |
| 7565 | |
| 7566 | // x is (non-trivial) prefix of y: |
yangguo@chromium.org | 4cd70b4 | 2013-01-04 08:57:54 +0000 | [diff] [blame] | 7567 | if (stream_y.HasMore()) return Smi::FromInt(LESS); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 7568 | // y is prefix of x: |
yangguo@chromium.org | 4cd70b4 | 2013-01-04 08:57:54 +0000 | [diff] [blame] | 7569 | return Smi::FromInt(stream_x.HasMore() ? GREATER : EQUAL); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 7570 | } |
| 7571 | |
| 7572 | |
| 7573 | static Object* FlatStringCompare(String* x, String* y) { |
| 7574 | ASSERT(x->IsFlat()); |
| 7575 | ASSERT(y->IsFlat()); |
| 7576 | Object* equal_prefix_result = Smi::FromInt(EQUAL); |
| 7577 | int prefix_length = x->length(); |
| 7578 | if (y->length() < prefix_length) { |
| 7579 | prefix_length = y->length(); |
| 7580 | equal_prefix_result = Smi::FromInt(GREATER); |
| 7581 | } else if (y->length() > prefix_length) { |
| 7582 | equal_prefix_result = Smi::FromInt(LESS); |
| 7583 | } |
| 7584 | int r; |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 7585 | DisallowHeapAllocation no_gc; |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 7586 | String::FlatContent x_content = x->GetFlatContent(); |
| 7587 | String::FlatContent y_content = y->GetFlatContent(); |
| 7588 | if (x_content.IsAscii()) { |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 7589 | Vector<const uint8_t> x_chars = x_content.ToOneByteVector(); |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 7590 | if (y_content.IsAscii()) { |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 7591 | Vector<const uint8_t> y_chars = y_content.ToOneByteVector(); |
fschneider@chromium.org | 086aac6 | 2010-03-17 13:18:24 +0000 | [diff] [blame] | 7592 | r = CompareChars(x_chars.start(), y_chars.start(), prefix_length); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 7593 | } else { |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 7594 | Vector<const uc16> y_chars = y_content.ToUC16Vector(); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 7595 | r = CompareChars(x_chars.start(), y_chars.start(), prefix_length); |
| 7596 | } |
| 7597 | } else { |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 7598 | Vector<const uc16> x_chars = x_content.ToUC16Vector(); |
| 7599 | if (y_content.IsAscii()) { |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 7600 | Vector<const uint8_t> y_chars = y_content.ToOneByteVector(); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 7601 | r = CompareChars(x_chars.start(), y_chars.start(), prefix_length); |
| 7602 | } else { |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 7603 | Vector<const uc16> y_chars = y_content.ToUC16Vector(); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 7604 | r = CompareChars(x_chars.start(), y_chars.start(), prefix_length); |
| 7605 | } |
| 7606 | } |
| 7607 | Object* result; |
| 7608 | if (r == 0) { |
| 7609 | result = equal_prefix_result; |
| 7610 | } else { |
| 7611 | result = (r < 0) ? Smi::FromInt(LESS) : Smi::FromInt(GREATER); |
| 7612 | } |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7613 | ASSERT(result == |
jkummerow@chromium.org | 3d00d0a | 2013-09-04 13:57:32 +0000 | [diff] [blame] | 7614 | StringCharacterStreamCompare(x->GetIsolate()->runtime_state(), x, y)); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 7615 | return result; |
| 7616 | } |
| 7617 | |
| 7618 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 7619 | RUNTIME_FUNCTION(MaybeObject*, Runtime_StringCompare) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 7620 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7621 | ASSERT(args.length() == 2); |
| 7622 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 7623 | CONVERT_ARG_CHECKED(String, x, 0); |
| 7624 | CONVERT_ARG_CHECKED(String, y, 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7625 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7626 | isolate->counters()->string_compare_runtime()->Increment(); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 7627 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7628 | // A few fast case tests before we flatten. |
| 7629 | if (x == y) return Smi::FromInt(EQUAL); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 7630 | if (y->length() == 0) { |
| 7631 | if (x->length() == 0) return Smi::FromInt(EQUAL); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7632 | return Smi::FromInt(GREATER); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 7633 | } else if (x->length() == 0) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7634 | return Smi::FromInt(LESS); |
| 7635 | } |
mads.s.ager@gmail.com | 9a4089a | 2008-09-01 08:55:01 +0000 | [diff] [blame] | 7636 | |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 7637 | int d = x->Get(0) - y->Get(0); |
mads.s.ager@gmail.com | 9a4089a | 2008-09-01 08:55:01 +0000 | [diff] [blame] | 7638 | if (d < 0) return Smi::FromInt(LESS); |
| 7639 | else if (d > 0) return Smi::FromInt(GREATER); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7640 | |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 7641 | Object* obj; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7642 | { MaybeObject* maybe_obj = isolate->heap()->PrepareForCompare(x); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 7643 | if (!maybe_obj->ToObject(&obj)) return maybe_obj; |
| 7644 | } |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7645 | { MaybeObject* maybe_obj = isolate->heap()->PrepareForCompare(y); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 7646 | if (!maybe_obj->ToObject(&obj)) return maybe_obj; |
| 7647 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7648 | |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 7649 | return (x->IsFlat() && y->IsFlat()) ? FlatStringCompare(x, y) |
yangguo@chromium.org | 4cd70b4 | 2013-01-04 08:57:54 +0000 | [diff] [blame] | 7650 | : StringCharacterStreamCompare(isolate->runtime_state(), x, y); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7651 | } |
| 7652 | |
| 7653 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 7654 | RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_acos) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 7655 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7656 | ASSERT(args.length() == 1); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7657 | isolate->counters()->math_acos()->Increment(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7658 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 7659 | CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
machenbach@chromium.org | afbdadc | 2013-12-09 16:12:18 +0000 | [diff] [blame] | 7660 | return isolate->heap()->AllocateHeapNumber(acos(x)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7661 | } |
| 7662 | |
| 7663 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 7664 | RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_asin) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 7665 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7666 | ASSERT(args.length() == 1); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7667 | isolate->counters()->math_asin()->Increment(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7668 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 7669 | CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
machenbach@chromium.org | afbdadc | 2013-12-09 16:12:18 +0000 | [diff] [blame] | 7670 | return isolate->heap()->AllocateHeapNumber(asin(x)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7671 | } |
| 7672 | |
| 7673 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 7674 | RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_atan) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 7675 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7676 | ASSERT(args.length() == 1); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7677 | isolate->counters()->math_atan()->Increment(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7678 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 7679 | CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
machenbach@chromium.org | afbdadc | 2013-12-09 16:12:18 +0000 | [diff] [blame] | 7680 | return isolate->heap()->AllocateHeapNumber(atan(x)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7681 | } |
| 7682 | |
| 7683 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7684 | static const double kPiDividedBy4 = 0.78539816339744830962; |
| 7685 | |
| 7686 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 7687 | RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_atan2) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 7688 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7689 | ASSERT(args.length() == 2); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7690 | isolate->counters()->math_atan2()->Increment(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7691 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 7692 | CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
| 7693 | CONVERT_DOUBLE_ARG_CHECKED(y, 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7694 | double result; |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 7695 | if (std::isinf(x) && std::isinf(y)) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7696 | // Make sure that the result in case of two infinite arguments |
| 7697 | // is a multiple of Pi / 4. The sign of the result is determined |
| 7698 | // by the first argument (x) and the sign of the second argument |
| 7699 | // determines the multiplier: one or three. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7700 | int multiplier = (x < 0) ? -1 : 1; |
| 7701 | if (y < 0) multiplier *= 3; |
| 7702 | result = multiplier * kPiDividedBy4; |
| 7703 | } else { |
| 7704 | result = atan2(x, y); |
| 7705 | } |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7706 | return isolate->heap()->AllocateHeapNumber(result); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7707 | } |
| 7708 | |
| 7709 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 7710 | RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_exp) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 7711 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7712 | ASSERT(args.length() == 1); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7713 | isolate->counters()->math_exp()->Increment(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7714 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 7715 | CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
danno@chromium.org | 1f34ad3 | 2012-11-26 14:53:56 +0000 | [diff] [blame] | 7716 | lazily_initialize_fast_exp(); |
| 7717 | return isolate->heap()->NumberFromDouble(fast_exp(x)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7718 | } |
| 7719 | |
| 7720 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 7721 | RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_floor) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 7722 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7723 | ASSERT(args.length() == 1); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7724 | isolate->counters()->math_floor()->Increment(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7725 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 7726 | CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7727 | return isolate->heap()->NumberFromDouble(floor(x)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7728 | } |
| 7729 | |
| 7730 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 7731 | RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_log) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 7732 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7733 | ASSERT(args.length() == 1); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7734 | isolate->counters()->math_log()->Increment(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7735 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 7736 | CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
hpayer@chromium.org | 4f99be9 | 2013-12-18 16:23:55 +0000 | [diff] [blame] | 7737 | return isolate->heap()->AllocateHeapNumber(log(x)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7738 | } |
| 7739 | |
mstarzinger@chromium.org | e0e1b0d | 2013-07-08 08:38:06 +0000 | [diff] [blame] | 7740 | |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 7741 | // Slow version of Math.pow. We check for fast paths for special cases. |
| 7742 | // Used if SSE2/VFP3 is not available. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 7743 | RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_pow) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 7744 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7745 | ASSERT(args.length() == 2); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7746 | isolate->counters()->math_pow()->Increment(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7747 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 7748 | CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
ager@chromium.org | 5aa501c | 2009-06-23 07:57:28 +0000 | [diff] [blame] | 7749 | |
| 7750 | // If the second argument is a smi, it is much faster to call the |
| 7751 | // custom powi() function than the generic pow(). |
| 7752 | if (args[1]->IsSmi()) { |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 7753 | int y = args.smi_at(1); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7754 | return isolate->heap()->NumberFromDouble(power_double_int(x, y)); |
ager@chromium.org | 5aa501c | 2009-06-23 07:57:28 +0000 | [diff] [blame] | 7755 | } |
| 7756 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 7757 | CONVERT_DOUBLE_ARG_CHECKED(y, 1); |
ulan@chromium.org | 2e04b58 | 2013-02-21 14:06:02 +0000 | [diff] [blame] | 7758 | double result = power_helper(x, y); |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 7759 | if (std::isnan(result)) return isolate->heap()->nan_value(); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 7760 | return isolate->heap()->AllocateHeapNumber(result); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7761 | } |
| 7762 | |
mstarzinger@chromium.org | e0e1b0d | 2013-07-08 08:38:06 +0000 | [diff] [blame] | 7763 | |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 7764 | // Fast version of Math.pow if we know that y is not an integer and y is not |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 7765 | // -0.5 or 0.5. Used as slow case from full codegen. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 7766 | RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_pow_cfunction) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 7767 | SealHandleScope shs(isolate); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 7768 | ASSERT(args.length() == 2); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 7769 | isolate->counters()->math_pow()->Increment(); |
| 7770 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 7771 | CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
| 7772 | CONVERT_DOUBLE_ARG_CHECKED(y, 1); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 7773 | if (y == 0) { |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 7774 | return Smi::FromInt(1); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 7775 | } else { |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 7776 | double result = power_double_double(x, y); |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 7777 | if (std::isnan(result)) return isolate->heap()->nan_value(); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 7778 | return isolate->heap()->AllocateHeapNumber(result); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 7779 | } |
| 7780 | } |
| 7781 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7782 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 7783 | RUNTIME_FUNCTION(MaybeObject*, Runtime_RoundNumber) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 7784 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7785 | ASSERT(args.length() == 1); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7786 | isolate->counters()->math_round()->Increment(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7787 | |
whesse@chromium.org | cec079d | 2010-03-22 14:44:04 +0000 | [diff] [blame] | 7788 | if (!args[0]->IsHeapNumber()) { |
| 7789 | // Must be smi. Return the argument unchanged for all the other types |
| 7790 | // to make fuzz-natives test happy. |
| 7791 | return args[0]; |
| 7792 | } |
| 7793 | |
| 7794 | HeapNumber* number = reinterpret_cast<HeapNumber*>(args[0]); |
| 7795 | |
| 7796 | double value = number->value(); |
| 7797 | int exponent = number->get_exponent(); |
| 7798 | int sign = number->get_sign(); |
| 7799 | |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 7800 | if (exponent < -1) { |
| 7801 | // Number in range ]-0.5..0.5[. These always round to +/-zero. |
| 7802 | if (sign) return isolate->heap()->minus_zero_value(); |
| 7803 | return Smi::FromInt(0); |
| 7804 | } |
| 7805 | |
| 7806 | // We compare with kSmiValueSize - 2 because (2^30 - 0.1) has exponent 29 and |
| 7807 | // should be rounded to 2^30, which is not smi (for 31-bit smis, similar |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 7808 | // argument holds for 32-bit smis). |
danno@chromium.org | 160a7b0 | 2011-04-18 15:51:38 +0000 | [diff] [blame] | 7809 | if (!sign && exponent < kSmiValueSize - 2) { |
whesse@chromium.org | cec079d | 2010-03-22 14:44:04 +0000 | [diff] [blame] | 7810 | return Smi::FromInt(static_cast<int>(value + 0.5)); |
| 7811 | } |
| 7812 | |
| 7813 | // If the magnitude is big enough, there's no place for fraction part. If we |
| 7814 | // try to add 0.5 to this number, 1.0 will be added instead. |
| 7815 | if (exponent >= 52) { |
| 7816 | return number; |
| 7817 | } |
| 7818 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7819 | if (sign && value >= -0.5) return isolate->heap()->minus_zero_value(); |
whesse@chromium.org | cec079d | 2010-03-22 14:44:04 +0000 | [diff] [blame] | 7820 | |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 7821 | // Do not call NumberFromDouble() to avoid extra checks. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7822 | return isolate->heap()->AllocateHeapNumber(floor(value + 0.5)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7823 | } |
| 7824 | |
| 7825 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 7826 | RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_sqrt) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 7827 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7828 | ASSERT(args.length() == 1); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7829 | isolate->counters()->math_sqrt()->Increment(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7830 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 7831 | CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
yangguo@chromium.org | 154ff99 | 2012-03-13 08:09:54 +0000 | [diff] [blame] | 7832 | return isolate->heap()->AllocateHeapNumber(fast_sqrt(x)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 7833 | } |
| 7834 | |
| 7835 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 7836 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DateMakeDay) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 7837 | SealHandleScope shs(isolate); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 7838 | ASSERT(args.length() == 2); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 7839 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 7840 | CONVERT_SMI_ARG_CHECKED(year, 0); |
| 7841 | CONVERT_SMI_ARG_CHECKED(month, 1); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 7842 | |
svenpanne@chromium.org | 4efbdb1 | 2012-03-12 08:18:42 +0000 | [diff] [blame] | 7843 | return Smi::FromInt(isolate->date_cache()->DaysFromYearMonth(year, month)); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 7844 | } |
| 7845 | |
| 7846 | |
svenpanne@chromium.org | 4efbdb1 | 2012-03-12 08:18:42 +0000 | [diff] [blame] | 7847 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DateSetValue) { |
| 7848 | HandleScope scope(isolate); |
| 7849 | ASSERT(args.length() == 3); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 7850 | |
svenpanne@chromium.org | 4efbdb1 | 2012-03-12 08:18:42 +0000 | [diff] [blame] | 7851 | CONVERT_ARG_HANDLE_CHECKED(JSDate, date, 0); |
| 7852 | CONVERT_DOUBLE_ARG_CHECKED(time, 1); |
| 7853 | CONVERT_SMI_ARG_CHECKED(is_utc, 2); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 7854 | |
svenpanne@chromium.org | 4efbdb1 | 2012-03-12 08:18:42 +0000 | [diff] [blame] | 7855 | DateCache* date_cache = isolate->date_cache(); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 7856 | |
svenpanne@chromium.org | 4efbdb1 | 2012-03-12 08:18:42 +0000 | [diff] [blame] | 7857 | Object* value = NULL; |
| 7858 | bool is_value_nan = false; |
ulan@chromium.org | 77ca49a | 2013-04-22 09:43:56 +0000 | [diff] [blame] | 7859 | if (std::isnan(time)) { |
svenpanne@chromium.org | 4efbdb1 | 2012-03-12 08:18:42 +0000 | [diff] [blame] | 7860 | value = isolate->heap()->nan_value(); |
| 7861 | is_value_nan = true; |
| 7862 | } else if (!is_utc && |
| 7863 | (time < -DateCache::kMaxTimeBeforeUTCInMs || |
| 7864 | time > DateCache::kMaxTimeBeforeUTCInMs)) { |
| 7865 | value = isolate->heap()->nan_value(); |
| 7866 | is_value_nan = true; |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 7867 | } else { |
svenpanne@chromium.org | 4efbdb1 | 2012-03-12 08:18:42 +0000 | [diff] [blame] | 7868 | time = is_utc ? time : date_cache->ToUTC(static_cast<int64_t>(time)); |
| 7869 | if (time < -DateCache::kMaxTimeInMs || |
| 7870 | time > DateCache::kMaxTimeInMs) { |
| 7871 | value = isolate->heap()->nan_value(); |
| 7872 | is_value_nan = true; |
| 7873 | } else { |
| 7874 | MaybeObject* maybe_result = |
| 7875 | isolate->heap()->AllocateHeapNumber(DoubleToInteger(time)); |
| 7876 | if (!maybe_result->ToObject(&value)) return maybe_result; |
| 7877 | } |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 7878 | } |
svenpanne@chromium.org | 4efbdb1 | 2012-03-12 08:18:42 +0000 | [diff] [blame] | 7879 | date->SetValue(value, is_value_nan); |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 7880 | return value; |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 7881 | } |
| 7882 | |
| 7883 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 7884 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NewArgumentsFast) { |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 7885 | HandleScope scope(isolate); |
| 7886 | ASSERT(args.length() == 3); |
| 7887 | |
| 7888 | Handle<JSFunction> callee = args.at<JSFunction>(0); |
| 7889 | Object** parameters = reinterpret_cast<Object**>(args[1]); |
| 7890 | const int argument_count = Smi::cast(args[2])->value(); |
| 7891 | |
| 7892 | Handle<JSObject> result = |
| 7893 | isolate->factory()->NewArgumentsObject(callee, argument_count); |
| 7894 | // Allocate the elements if needed. |
| 7895 | int parameter_count = callee->shared()->formal_parameter_count(); |
| 7896 | if (argument_count > 0) { |
| 7897 | if (parameter_count > 0) { |
| 7898 | int mapped_count = Min(argument_count, parameter_count); |
| 7899 | Handle<FixedArray> parameter_map = |
| 7900 | isolate->factory()->NewFixedArray(mapped_count + 2, NOT_TENURED); |
| 7901 | parameter_map->set_map( |
| 7902 | isolate->heap()->non_strict_arguments_elements_map()); |
| 7903 | |
| 7904 | Handle<Map> old_map(result->map()); |
verwaest@chromium.org | 753aee4 | 2012-07-17 16:15:42 +0000 | [diff] [blame] | 7905 | Handle<Map> new_map = isolate->factory()->CopyMap(old_map); |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 7906 | new_map->set_elements_kind(NON_STRICT_ARGUMENTS_ELEMENTS); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 7907 | |
| 7908 | result->set_map(*new_map); |
| 7909 | result->set_elements(*parameter_map); |
| 7910 | |
| 7911 | // Store the context and the arguments array at the beginning of the |
| 7912 | // parameter map. |
| 7913 | Handle<Context> context(isolate->context()); |
| 7914 | Handle<FixedArray> arguments = |
| 7915 | isolate->factory()->NewFixedArray(argument_count, NOT_TENURED); |
| 7916 | parameter_map->set(0, *context); |
| 7917 | parameter_map->set(1, *arguments); |
| 7918 | |
| 7919 | // Loop over the actual parameters backwards. |
| 7920 | int index = argument_count - 1; |
| 7921 | while (index >= mapped_count) { |
| 7922 | // These go directly in the arguments array and have no |
| 7923 | // corresponding slot in the parameter map. |
| 7924 | arguments->set(index, *(parameters - index - 1)); |
| 7925 | --index; |
| 7926 | } |
| 7927 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 7928 | Handle<ScopeInfo> scope_info(callee->shared()->scope_info()); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 7929 | while (index >= 0) { |
| 7930 | // Detect duplicate names to the right in the parameter list. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 7931 | Handle<String> name(scope_info->ParameterName(index)); |
| 7932 | int context_local_count = scope_info->ContextLocalCount(); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 7933 | bool duplicate = false; |
| 7934 | for (int j = index + 1; j < parameter_count; ++j) { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 7935 | if (scope_info->ParameterName(j) == *name) { |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 7936 | duplicate = true; |
| 7937 | break; |
| 7938 | } |
| 7939 | } |
| 7940 | |
| 7941 | if (duplicate) { |
| 7942 | // This goes directly in the arguments array with a hole in the |
| 7943 | // parameter map. |
| 7944 | arguments->set(index, *(parameters - index - 1)); |
| 7945 | parameter_map->set_the_hole(index + 2); |
| 7946 | } else { |
| 7947 | // The context index goes in the parameter map with a hole in the |
| 7948 | // arguments array. |
| 7949 | int context_index = -1; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 7950 | for (int j = 0; j < context_local_count; ++j) { |
| 7951 | if (scope_info->ContextLocalName(j) == *name) { |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 7952 | context_index = j; |
| 7953 | break; |
| 7954 | } |
| 7955 | } |
| 7956 | ASSERT(context_index >= 0); |
| 7957 | arguments->set_the_hole(index); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 7958 | parameter_map->set(index + 2, Smi::FromInt( |
| 7959 | Context::MIN_CONTEXT_SLOTS + context_index)); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 7960 | } |
| 7961 | |
| 7962 | --index; |
| 7963 | } |
| 7964 | } else { |
| 7965 | // If there is no aliasing, the arguments object elements are not |
| 7966 | // special in any way. |
| 7967 | Handle<FixedArray> elements = |
| 7968 | isolate->factory()->NewFixedArray(argument_count, NOT_TENURED); |
| 7969 | result->set_elements(*elements); |
| 7970 | for (int i = 0; i < argument_count; ++i) { |
| 7971 | elements->set(i, *(parameters - i - 1)); |
| 7972 | } |
| 7973 | } |
| 7974 | } |
| 7975 | return *result; |
| 7976 | } |
| 7977 | |
| 7978 | |
| 7979 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NewStrictArgumentsFast) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 7980 | SealHandleScope shs(isolate); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 7981 | ASSERT(args.length() == 3); |
| 7982 | |
| 7983 | JSFunction* callee = JSFunction::cast(args[0]); |
| 7984 | Object** parameters = reinterpret_cast<Object**>(args[1]); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 7985 | const int length = args.smi_at(2); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 7986 | |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 7987 | Object* result; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 7988 | { MaybeObject* maybe_result = |
| 7989 | isolate->heap()->AllocateArgumentsObject(callee, length); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 7990 | if (!maybe_result->ToObject(&result)) return maybe_result; |
| 7991 | } |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 7992 | // Allocate the elements if needed. |
| 7993 | if (length > 0) { |
| 7994 | // Allocate the fixed array. |
machenbach@chromium.org | cfdf67d | 2013-09-27 07:27:26 +0000 | [diff] [blame] | 7995 | FixedArray* array; |
| 7996 | { MaybeObject* maybe_obj = |
| 7997 | isolate->heap()->AllocateUninitializedFixedArray(length); |
| 7998 | if (!maybe_obj->To(&array)) return maybe_obj; |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 7999 | } |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 8000 | |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 8001 | DisallowHeapAllocation no_gc; |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 8002 | WriteBarrierMode mode = array->GetWriteBarrierMode(no_gc); |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 8003 | for (int i = 0; i < length; i++) { |
| 8004 | array->set(i, *--parameters, mode); |
| 8005 | } |
machenbach@chromium.org | cfdf67d | 2013-09-27 07:27:26 +0000 | [diff] [blame] | 8006 | JSObject::cast(result)->set_elements(array); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 8007 | } |
| 8008 | return result; |
| 8009 | } |
| 8010 | |
| 8011 | |
verwaest@chromium.org | 662436e | 2013-08-28 08:41:27 +0000 | [diff] [blame] | 8012 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NewClosureFromStubFailure) { |
| 8013 | HandleScope scope(isolate); |
| 8014 | ASSERT(args.length() == 1); |
| 8015 | CONVERT_ARG_HANDLE_CHECKED(SharedFunctionInfo, shared, 0); |
| 8016 | Handle<Context> context(isolate->context()); |
| 8017 | PretenureFlag pretenure_flag = NOT_TENURED; |
| 8018 | Handle<JSFunction> result = |
| 8019 | isolate->factory()->NewFunctionFromSharedFunctionInfo(shared, |
| 8020 | context, |
| 8021 | pretenure_flag); |
| 8022 | return *result; |
| 8023 | } |
| 8024 | |
| 8025 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 8026 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NewClosure) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 8027 | HandleScope scope(isolate); |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 8028 | ASSERT(args.length() == 3); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 8029 | CONVERT_ARG_HANDLE_CHECKED(Context, context, 0); |
| 8030 | CONVERT_ARG_HANDLE_CHECKED(SharedFunctionInfo, shared, 1); |
| 8031 | CONVERT_BOOLEAN_ARG_CHECKED(pretenure, 2); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 8032 | |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 8033 | // The caller ensures that we pretenure closures that are assigned |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 8034 | // directly to properties. |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 8035 | PretenureFlag pretenure_flag = pretenure ? TENURED : NOT_TENURED; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 8036 | Handle<JSFunction> result = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 8037 | isolate->factory()->NewFunctionFromSharedFunctionInfo(shared, |
| 8038 | context, |
| 8039 | pretenure_flag); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 8040 | return *result; |
| 8041 | } |
| 8042 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 8043 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 8044 | // Find the arguments of the JavaScript function invocation that called |
| 8045 | // into C++ code. Collect these in a newly allocated array of handles (possibly |
| 8046 | // prefixed by a number of empty handles). |
| 8047 | static SmartArrayPointer<Handle<Object> > GetCallerArguments( |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 8048 | Isolate* isolate, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 8049 | int prefix_argc, |
svenpanne@chromium.org | a8bb4d9 | 2011-10-10 13:20:40 +0000 | [diff] [blame] | 8050 | int* total_argc) { |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 8051 | // Find frame containing arguments passed to the caller. |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 8052 | JavaScriptFrameIterator it(isolate); |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 8053 | JavaScriptFrame* frame = it.frame(); |
| 8054 | List<JSFunction*> functions(2); |
| 8055 | frame->GetFunctions(&functions); |
| 8056 | if (functions.length() > 1) { |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 8057 | int inlined_jsframe_index = functions.length() - 1; |
| 8058 | JSFunction* inlined_function = functions[inlined_jsframe_index]; |
| 8059 | Vector<SlotRef> args_slots = |
| 8060 | SlotRef::ComputeSlotMappingForArguments( |
| 8061 | frame, |
| 8062 | inlined_jsframe_index, |
| 8063 | inlined_function->shared()->formal_parameter_count()); |
| 8064 | |
| 8065 | int args_count = args_slots.length(); |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 8066 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 8067 | *total_argc = prefix_argc + args_count; |
svenpanne@chromium.org | a8bb4d9 | 2011-10-10 13:20:40 +0000 | [diff] [blame] | 8068 | SmartArrayPointer<Handle<Object> > param_data( |
| 8069 | NewArray<Handle<Object> >(*total_argc)); |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 8070 | for (int i = 0; i < args_count; i++) { |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 8071 | Handle<Object> val = args_slots[i].GetValue(isolate); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 8072 | param_data[prefix_argc + i] = val; |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 8073 | } |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 8074 | |
| 8075 | args_slots.Dispose(); |
| 8076 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 8077 | return param_data; |
| 8078 | } else { |
| 8079 | it.AdvanceToArgumentsFrame(); |
| 8080 | frame = it.frame(); |
| 8081 | int args_count = frame->ComputeParametersCount(); |
| 8082 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 8083 | *total_argc = prefix_argc + args_count; |
svenpanne@chromium.org | a8bb4d9 | 2011-10-10 13:20:40 +0000 | [diff] [blame] | 8084 | SmartArrayPointer<Handle<Object> > param_data( |
| 8085 | NewArray<Handle<Object> >(*total_argc)); |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 8086 | for (int i = 0; i < args_count; i++) { |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 8087 | Handle<Object> val = Handle<Object>(frame->GetParameter(i), isolate); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 8088 | param_data[prefix_argc + i] = val; |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 8089 | } |
| 8090 | return param_data; |
| 8091 | } |
| 8092 | } |
| 8093 | |
| 8094 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 8095 | RUNTIME_FUNCTION(MaybeObject*, Runtime_FunctionBindArguments) { |
| 8096 | HandleScope scope(isolate); |
| 8097 | ASSERT(args.length() == 4); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 8098 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, bound_function, 0); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 8099 | RUNTIME_ASSERT(args[3]->IsNumber()); |
| 8100 | Handle<Object> bindee = args.at<Object>(1); |
| 8101 | |
| 8102 | // TODO(lrn): Create bound function in C++ code from premade shared info. |
| 8103 | bound_function->shared()->set_bound(true); |
| 8104 | // Get all arguments of calling function (Function.prototype.bind). |
| 8105 | int argc = 0; |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 8106 | SmartArrayPointer<Handle<Object> > arguments = |
| 8107 | GetCallerArguments(isolate, 0, &argc); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 8108 | // Don't count the this-arg. |
| 8109 | if (argc > 0) { |
| 8110 | ASSERT(*arguments[0] == args[2]); |
| 8111 | argc--; |
| 8112 | } else { |
| 8113 | ASSERT(args[2]->IsUndefined()); |
| 8114 | } |
| 8115 | // Initialize array of bindings (function, this, and any existing arguments |
| 8116 | // if the function was already bound). |
| 8117 | Handle<FixedArray> new_bindings; |
| 8118 | int i; |
| 8119 | if (bindee->IsJSFunction() && JSFunction::cast(*bindee)->shared()->bound()) { |
| 8120 | Handle<FixedArray> old_bindings( |
| 8121 | JSFunction::cast(*bindee)->function_bindings()); |
| 8122 | new_bindings = |
| 8123 | isolate->factory()->NewFixedArray(old_bindings->length() + argc); |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 8124 | bindee = Handle<Object>(old_bindings->get(JSFunction::kBoundFunctionIndex), |
| 8125 | isolate); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 8126 | i = 0; |
| 8127 | for (int n = old_bindings->length(); i < n; i++) { |
| 8128 | new_bindings->set(i, old_bindings->get(i)); |
| 8129 | } |
| 8130 | } else { |
| 8131 | int array_size = JSFunction::kBoundArgumentsStartIndex + argc; |
| 8132 | new_bindings = isolate->factory()->NewFixedArray(array_size); |
| 8133 | new_bindings->set(JSFunction::kBoundFunctionIndex, *bindee); |
| 8134 | new_bindings->set(JSFunction::kBoundThisIndex, args[2]); |
| 8135 | i = 2; |
| 8136 | } |
| 8137 | // Copy arguments, skipping the first which is "this_arg". |
| 8138 | for (int j = 0; j < argc; j++, i++) { |
| 8139 | new_bindings->set(i, *arguments[j + 1]); |
| 8140 | } |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 8141 | new_bindings->set_map_no_write_barrier( |
| 8142 | isolate->heap()->fixed_cow_array_map()); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 8143 | bound_function->set_function_bindings(*new_bindings); |
| 8144 | |
| 8145 | // Update length. |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 8146 | Handle<String> length_string = isolate->factory()->length_string(); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 8147 | Handle<Object> new_length(args.at<Object>(3)); |
| 8148 | PropertyAttributes attr = |
| 8149 | static_cast<PropertyAttributes>(DONT_DELETE | DONT_ENUM | READ_ONLY); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 8150 | ForceSetProperty(bound_function, length_string, new_length, attr); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 8151 | return *bound_function; |
| 8152 | } |
| 8153 | |
| 8154 | |
| 8155 | RUNTIME_FUNCTION(MaybeObject*, Runtime_BoundFunctionGetBindings) { |
| 8156 | HandleScope handles(isolate); |
| 8157 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 8158 | CONVERT_ARG_HANDLE_CHECKED(JSReceiver, callable, 0); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 8159 | if (callable->IsJSFunction()) { |
| 8160 | Handle<JSFunction> function = Handle<JSFunction>::cast(callable); |
| 8161 | if (function->shared()->bound()) { |
| 8162 | Handle<FixedArray> bindings(function->function_bindings()); |
| 8163 | ASSERT(bindings->map() == isolate->heap()->fixed_cow_array_map()); |
| 8164 | return *isolate->factory()->NewJSArrayWithElements(bindings); |
| 8165 | } |
| 8166 | } |
| 8167 | return isolate->heap()->undefined_value(); |
| 8168 | } |
| 8169 | |
| 8170 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 8171 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NewObjectFromBound) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 8172 | HandleScope scope(isolate); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 8173 | ASSERT(args.length() == 1); |
erik.corry@gmail.com | d91075f | 2011-02-10 07:45:38 +0000 | [diff] [blame] | 8174 | // First argument is a function to use as a constructor. |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 8175 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 0); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 8176 | RUNTIME_ASSERT(function->shared()->bound()); |
whesse@chromium.org | ba5a61b | 2010-07-26 11:44:40 +0000 | [diff] [blame] | 8177 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 8178 | // The argument is a bound function. Extract its bound arguments |
| 8179 | // and callable. |
| 8180 | Handle<FixedArray> bound_args = |
| 8181 | Handle<FixedArray>(FixedArray::cast(function->function_bindings())); |
| 8182 | int bound_argc = bound_args->length() - JSFunction::kBoundArgumentsStartIndex; |
| 8183 | Handle<Object> bound_function( |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 8184 | JSReceiver::cast(bound_args->get(JSFunction::kBoundFunctionIndex)), |
| 8185 | isolate); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 8186 | ASSERT(!bound_function->IsJSFunction() || |
| 8187 | !Handle<JSFunction>::cast(bound_function)->shared()->bound()); |
whesse@chromium.org | ba5a61b | 2010-07-26 11:44:40 +0000 | [diff] [blame] | 8188 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 8189 | int total_argc = 0; |
svenpanne@chromium.org | a8bb4d9 | 2011-10-10 13:20:40 +0000 | [diff] [blame] | 8190 | SmartArrayPointer<Handle<Object> > param_data = |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 8191 | GetCallerArguments(isolate, bound_argc, &total_argc); |
erik.corry@gmail.com | d91075f | 2011-02-10 07:45:38 +0000 | [diff] [blame] | 8192 | for (int i = 0; i < bound_argc; i++) { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 8193 | param_data[i] = Handle<Object>(bound_args->get( |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 8194 | JSFunction::kBoundArgumentsStartIndex + i), isolate); |
whesse@chromium.org | ba5a61b | 2010-07-26 11:44:40 +0000 | [diff] [blame] | 8195 | } |
| 8196 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 8197 | if (!bound_function->IsJSFunction()) { |
| 8198 | bool exception_thrown; |
mstarzinger@chromium.org | e900018 | 2013-09-03 11:25:39 +0000 | [diff] [blame] | 8199 | bound_function = Execution::TryGetConstructorDelegate(isolate, |
| 8200 | bound_function, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 8201 | &exception_thrown); |
| 8202 | if (exception_thrown) return Failure::Exception(); |
| 8203 | } |
| 8204 | ASSERT(bound_function->IsJSFunction()); |
| 8205 | |
whesse@chromium.org | e90029b | 2010-08-02 11:52:17 +0000 | [diff] [blame] | 8206 | bool exception = false; |
erik.corry@gmail.com | d91075f | 2011-02-10 07:45:38 +0000 | [diff] [blame] | 8207 | Handle<Object> result = |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 8208 | Execution::New(Handle<JSFunction>::cast(bound_function), |
machenbach@chromium.org | afbdadc | 2013-12-09 16:12:18 +0000 | [diff] [blame] | 8209 | total_argc, param_data.get(), &exception); |
whesse@chromium.org | e90029b | 2010-08-02 11:52:17 +0000 | [diff] [blame] | 8210 | if (exception) { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 8211 | return Failure::Exception(); |
whesse@chromium.org | e90029b | 2010-08-02 11:52:17 +0000 | [diff] [blame] | 8212 | } |
| 8213 | ASSERT(!result.is_null()); |
whesse@chromium.org | ba5a61b | 2010-07-26 11:44:40 +0000 | [diff] [blame] | 8214 | return *result; |
| 8215 | } |
| 8216 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 8217 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 8218 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NewObject) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 8219 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 8220 | ASSERT(args.length() == 1); |
| 8221 | |
ager@chromium.org | 5aa501c | 2009-06-23 07:57:28 +0000 | [diff] [blame] | 8222 | Handle<Object> constructor = args.at<Object>(0); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 8223 | |
ager@chromium.org | 5aa501c | 2009-06-23 07:57:28 +0000 | [diff] [blame] | 8224 | // If the constructor isn't a proper function we throw a type error. |
| 8225 | if (!constructor->IsJSFunction()) { |
| 8226 | Vector< Handle<Object> > arguments = HandleVector(&constructor, 1); |
| 8227 | Handle<Object> type_error = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 8228 | isolate->factory()->NewTypeError("not_constructor", arguments); |
| 8229 | return isolate->Throw(*type_error); |
ager@chromium.org | 5aa501c | 2009-06-23 07:57:28 +0000 | [diff] [blame] | 8230 | } |
| 8231 | |
| 8232 | Handle<JSFunction> function = Handle<JSFunction>::cast(constructor); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 8233 | |
| 8234 | // If function should not have prototype, construction is not allowed. In this |
| 8235 | // case generated code bailouts here, since function has no initial_map. |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 8236 | if (!function->should_have_prototype() && !function->shared()->bound()) { |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 8237 | Vector< Handle<Object> > arguments = HandleVector(&constructor, 1); |
| 8238 | Handle<Object> type_error = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 8239 | isolate->factory()->NewTypeError("not_constructor", arguments); |
| 8240 | return isolate->Throw(*type_error); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 8241 | } |
| 8242 | |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 8243 | #ifdef ENABLE_DEBUGGER_SUPPORT |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 8244 | Debug* debug = isolate->debug(); |
ager@chromium.org | 5aa501c | 2009-06-23 07:57:28 +0000 | [diff] [blame] | 8245 | // Handle stepping into constructors if step into is active. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 8246 | if (debug->StepInActive()) { |
| 8247 | debug->HandleStepIn(function, Handle<Object>::null(), 0, true); |
ager@chromium.org | 5aa501c | 2009-06-23 07:57:28 +0000 | [diff] [blame] | 8248 | } |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 8249 | #endif |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 8250 | |
ager@chromium.org | 5aa501c | 2009-06-23 07:57:28 +0000 | [diff] [blame] | 8251 | if (function->has_initial_map()) { |
| 8252 | if (function->initial_map()->instance_type() == JS_FUNCTION_TYPE) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 8253 | // The 'Function' function ignores the receiver object when |
| 8254 | // called using 'new' and creates a new JSFunction object that |
| 8255 | // is returned. The receiver object is only used for error |
| 8256 | // reporting if an error occurs when constructing the new |
verwaest@chromium.org | d4be0f0 | 2013-06-05 13:39:03 +0000 | [diff] [blame] | 8257 | // JSFunction. Factory::NewJSObject() should not be used to |
ager@chromium.org | 5aa501c | 2009-06-23 07:57:28 +0000 | [diff] [blame] | 8258 | // allocate JSFunctions since it does not properly initialize |
| 8259 | // the shared part of the function. Since the receiver is |
| 8260 | // ignored anyway, we use the global object as the receiver |
| 8261 | // instead of a new JSFunction object. This way, errors are |
| 8262 | // reported the same way whether or not 'Function' is called |
| 8263 | // using 'new'. |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 8264 | return isolate->context()->global_object(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 8265 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 8266 | } |
| 8267 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 8268 | // The function should be compiled for the optimization hints to be |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 8269 | // available. |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8270 | Compiler::EnsureCompiled(function, CLEAR_EXCEPTION); |
ager@chromium.org | 18ad94b | 2009-09-02 08:22:29 +0000 | [diff] [blame] | 8271 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 8272 | Handle<SharedFunctionInfo> shared(function->shared(), isolate); |
whesse@chromium.org | 4a1fe7d | 2010-09-27 12:32:04 +0000 | [diff] [blame] | 8273 | if (!function->has_initial_map() && |
| 8274 | shared->IsInobjectSlackTrackingInProgress()) { |
| 8275 | // The tracking is already in progress for another function. We can only |
| 8276 | // track one initial_map at a time, so we force the completion before the |
| 8277 | // function is called as a constructor for the first time. |
| 8278 | shared->CompleteInobjectSlackTracking(); |
whesse@chromium.org | 4a1fe7d | 2010-09-27 12:32:04 +0000 | [diff] [blame] | 8279 | } |
| 8280 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 8281 | Handle<JSObject> result = isolate->factory()->NewJSObject(function); |
| 8282 | RETURN_IF_EMPTY_HANDLE(isolate, result); |
ager@chromium.org | 18ad94b | 2009-09-02 08:22:29 +0000 | [diff] [blame] | 8283 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 8284 | isolate->counters()->constructed_objects()->Increment(); |
| 8285 | isolate->counters()->constructed_objects_runtime()->Increment(); |
ager@chromium.org | 18ad94b | 2009-09-02 08:22:29 +0000 | [diff] [blame] | 8286 | |
ager@chromium.org | 5aa501c | 2009-06-23 07:57:28 +0000 | [diff] [blame] | 8287 | return *result; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 8288 | } |
| 8289 | |
| 8290 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 8291 | RUNTIME_FUNCTION(MaybeObject*, Runtime_FinalizeInstanceSize) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 8292 | HandleScope scope(isolate); |
whesse@chromium.org | 4a1fe7d | 2010-09-27 12:32:04 +0000 | [diff] [blame] | 8293 | ASSERT(args.length() == 1); |
| 8294 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 8295 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 0); |
whesse@chromium.org | 4a1fe7d | 2010-09-27 12:32:04 +0000 | [diff] [blame] | 8296 | function->shared()->CompleteInobjectSlackTracking(); |
whesse@chromium.org | 4a1fe7d | 2010-09-27 12:32:04 +0000 | [diff] [blame] | 8297 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 8298 | return isolate->heap()->undefined_value(); |
whesse@chromium.org | 4a1fe7d | 2010-09-27 12:32:04 +0000 | [diff] [blame] | 8299 | } |
| 8300 | |
| 8301 | |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8302 | RUNTIME_FUNCTION(MaybeObject*, Runtime_CompileUnoptimized) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 8303 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 8304 | ASSERT(args.length() == 1); |
| 8305 | |
| 8306 | Handle<JSFunction> function = args.at<JSFunction>(0); |
| 8307 | #ifdef DEBUG |
vegorov@chromium.org | 26c16f8 | 2010-08-11 13:41:03 +0000 | [diff] [blame] | 8308 | if (FLAG_trace_lazy && !function->shared()->is_compiled()) { |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8309 | PrintF("[unoptimized: "); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 8310 | function->PrintName(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 8311 | PrintF("]\n"); |
| 8312 | } |
| 8313 | #endif |
| 8314 | |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 8315 | // Compile the target function. |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8316 | ASSERT(function->shared()->allows_lazy_compilation()); |
| 8317 | |
| 8318 | Handle<Code> code = Compiler::GetUnoptimizedCode(function); |
| 8319 | RETURN_IF_EMPTY_HANDLE(isolate, code); |
| 8320 | function->ReplaceCode(*code); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 8321 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 8322 | // All done. Return the compiled code. |
| 8323 | ASSERT(function->is_compiled()); |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8324 | ASSERT(function->code()->kind() == Code::FUNCTION || |
| 8325 | (FLAG_always_opt && |
| 8326 | function->code()->kind() == Code::OPTIMIZED_FUNCTION)); |
| 8327 | return *code; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 8328 | } |
| 8329 | |
| 8330 | |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8331 | RUNTIME_FUNCTION(MaybeObject*, Runtime_CompileOptimized) { |
| 8332 | HandleScope scope(isolate); |
| 8333 | ASSERT(args.length() == 2); |
| 8334 | Handle<JSFunction> function = args.at<JSFunction>(0); |
| 8335 | CONVERT_BOOLEAN_ARG_CHECKED(concurrent, 1); |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 8336 | |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8337 | Handle<Code> unoptimized(function->shared()->code()); |
| 8338 | if (!function->shared()->is_compiled()) { |
| 8339 | // If the function is not compiled, do not optimize. |
| 8340 | // This can happen if the debugger is activated and |
| 8341 | // the function is returned to the not compiled state. |
| 8342 | // TODO(yangguo): reconsider this. |
| 8343 | function->ReplaceCode(function->shared()->code()); |
| 8344 | } else if (!isolate->use_crankshaft() || |
| 8345 | function->shared()->optimization_disabled() || |
| 8346 | isolate->DebuggerHasBreakPoints()) { |
| 8347 | // If the function is not optimizable or debugger is active continue |
| 8348 | // using the code from the full compiler. |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 8349 | if (FLAG_trace_opt) { |
| 8350 | PrintF("[failed to optimize "); |
| 8351 | function->PrintName(); |
| 8352 | PrintF(": is code optimizable: %s, is debugger enabled: %s]\n", |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 8353 | function->shared()->optimization_disabled() ? "F" : "T", |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 8354 | isolate->DebuggerHasBreakPoints() ? "T" : "F"); |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 8355 | } |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8356 | function->ReplaceCode(*unoptimized); |
| 8357 | } else { |
| 8358 | Compiler::ConcurrencyMode mode = concurrent ? Compiler::CONCURRENT |
| 8359 | : Compiler::NOT_CONCURRENT; |
| 8360 | Handle<Code> code = Compiler::GetOptimizedCode(function, unoptimized, mode); |
| 8361 | function->ReplaceCode(code.is_null() ? *unoptimized : *code); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 8362 | } |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 8363 | |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8364 | ASSERT(function->code()->kind() == Code::FUNCTION || |
| 8365 | function->code()->kind() == Code::OPTIMIZED_FUNCTION || |
| 8366 | function->IsInOptimizationQueue()); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 8367 | return function->code(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 8368 | } |
| 8369 | |
| 8370 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 8371 | class ActivationsFinder : public ThreadVisitor { |
| 8372 | public: |
titzer@chromium.org | 3f7dfd6 | 2013-08-22 14:10:03 +0000 | [diff] [blame] | 8373 | Code* code_; |
| 8374 | bool has_code_activations_; |
| 8375 | |
| 8376 | explicit ActivationsFinder(Code* code) |
| 8377 | : code_(code), |
| 8378 | has_code_activations_(false) { } |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 8379 | |
| 8380 | void VisitThread(Isolate* isolate, ThreadLocalTop* top) { |
titzer@chromium.org | 3f7dfd6 | 2013-08-22 14:10:03 +0000 | [diff] [blame] | 8381 | JavaScriptFrameIterator it(isolate, top); |
| 8382 | VisitFrames(&it); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 8383 | } |
| 8384 | |
titzer@chromium.org | 3f7dfd6 | 2013-08-22 14:10:03 +0000 | [diff] [blame] | 8385 | void VisitFrames(JavaScriptFrameIterator* it) { |
| 8386 | for (; !it->done(); it->Advance()) { |
| 8387 | JavaScriptFrame* frame = it->frame(); |
| 8388 | if (code_->contains(frame->pc())) has_code_activations_ = true; |
| 8389 | } |
| 8390 | } |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 8391 | }; |
| 8392 | |
| 8393 | |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 8394 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NotifyStubFailure) { |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 8395 | HandleScope scope(isolate); |
| 8396 | ASSERT(args.length() == 0); |
| 8397 | Deoptimizer* deoptimizer = Deoptimizer::Grab(isolate); |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 8398 | ASSERT(AllowHeapAllocation::IsAllowed()); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 8399 | delete deoptimizer; |
| 8400 | return isolate->heap()->undefined_value(); |
| 8401 | } |
| 8402 | |
| 8403 | |
yangguo@chromium.org | 154ff99 | 2012-03-13 08:09:54 +0000 | [diff] [blame] | 8404 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NotifyDeoptimized) { |
| 8405 | HandleScope scope(isolate); |
| 8406 | ASSERT(args.length() == 1); |
| 8407 | RUNTIME_ASSERT(args[0]->IsSmi()); |
| 8408 | Deoptimizer::BailoutType type = |
| 8409 | static_cast<Deoptimizer::BailoutType>(args.smi_at(0)); |
| 8410 | Deoptimizer* deoptimizer = Deoptimizer::Grab(isolate); |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 8411 | ASSERT(AllowHeapAllocation::IsAllowed()); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 8412 | |
titzer@chromium.org | 3f7dfd6 | 2013-08-22 14:10:03 +0000 | [diff] [blame] | 8413 | Handle<JSFunction> function = deoptimizer->function(); |
| 8414 | Handle<Code> optimized_code = deoptimizer->compiled_code(); |
| 8415 | |
| 8416 | ASSERT(optimized_code->kind() == Code::OPTIMIZED_FUNCTION); |
| 8417 | ASSERT(type == deoptimizer->bailout_type()); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 8418 | |
| 8419 | // Make sure to materialize objects before causing any allocation. |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 8420 | JavaScriptFrameIterator it(isolate); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 8421 | deoptimizer->MaterializeHeapObjects(&it); |
| 8422 | delete deoptimizer; |
yangguo@chromium.org | 154ff99 | 2012-03-13 08:09:54 +0000 | [diff] [blame] | 8423 | |
| 8424 | JavaScriptFrame* frame = it.frame(); |
| 8425 | RUNTIME_ASSERT(frame->function()->IsJSFunction()); |
hpayer@chromium.org | c5d4971 | 2013-09-11 08:25:48 +0000 | [diff] [blame] | 8426 | ASSERT(frame->function() == *function); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 8427 | |
| 8428 | // Avoid doing too much work when running with --always-opt and keep |
| 8429 | // the optimized code around. |
| 8430 | if (FLAG_always_opt || type == Deoptimizer::LAZY) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 8431 | return isolate->heap()->undefined_value(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 8432 | } |
| 8433 | |
titzer@chromium.org | 3f7dfd6 | 2013-08-22 14:10:03 +0000 | [diff] [blame] | 8434 | // Search for other activations of the same function and code. |
| 8435 | ActivationsFinder activations_finder(*optimized_code); |
| 8436 | activations_finder.VisitFrames(&it); |
| 8437 | isolate->thread_manager()->IterateArchivedThreads(&activations_finder); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 8438 | |
titzer@chromium.org | 3f7dfd6 | 2013-08-22 14:10:03 +0000 | [diff] [blame] | 8439 | if (!activations_finder.has_code_activations_) { |
| 8440 | if (function->code() == *optimized_code) { |
| 8441 | if (FLAG_trace_deopt) { |
| 8442 | PrintF("[removing optimized code for: "); |
| 8443 | function->PrintName(); |
| 8444 | PrintF("]\n"); |
| 8445 | } |
| 8446 | function->ReplaceCode(function->shared()->code()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 8447 | } |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 8448 | } else { |
titzer@chromium.org | 3f7dfd6 | 2013-08-22 14:10:03 +0000 | [diff] [blame] | 8449 | // TODO(titzer): we should probably do DeoptimizeCodeList(code) |
| 8450 | // unconditionally if the code is not already marked for deoptimization. |
| 8451 | // If there is an index by shared function info, all the better. |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 8452 | Deoptimizer::DeoptimizeFunction(*function); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 8453 | } |
ulan@chromium.org | 906e2fb | 2013-05-14 08:14:38 +0000 | [diff] [blame] | 8454 | // Evict optimized code for this function from the cache so that it doesn't |
| 8455 | // get used for new closures. |
| 8456 | function->shared()->EvictFromOptimizedCodeMap(*optimized_code, |
| 8457 | "notify deoptimized"); |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 8458 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 8459 | return isolate->heap()->undefined_value(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 8460 | } |
| 8461 | |
| 8462 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 8463 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DeoptimizeFunction) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 8464 | HandleScope scope(isolate); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 8465 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 8466 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 0); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 8467 | if (!function->IsOptimized()) return isolate->heap()->undefined_value(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 8468 | |
| 8469 | Deoptimizer::DeoptimizeFunction(*function); |
| 8470 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 8471 | return isolate->heap()->undefined_value(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 8472 | } |
| 8473 | |
| 8474 | |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 8475 | RUNTIME_FUNCTION(MaybeObject*, Runtime_ClearFunctionTypeFeedback) { |
| 8476 | HandleScope scope(isolate); |
| 8477 | ASSERT(args.length() == 1); |
| 8478 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 0); |
| 8479 | Code* unoptimized = function->shared()->code(); |
| 8480 | if (unoptimized->kind() == Code::FUNCTION) { |
| 8481 | unoptimized->ClearInlineCaches(); |
| 8482 | unoptimized->ClearTypeFeedbackCells(isolate->heap()); |
| 8483 | } |
| 8484 | return isolate->heap()->undefined_value(); |
| 8485 | } |
| 8486 | |
| 8487 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 8488 | RUNTIME_FUNCTION(MaybeObject*, Runtime_RunningInSimulator) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 8489 | SealHandleScope shs(isolate); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 8490 | #if defined(USE_SIMULATOR) |
| 8491 | return isolate->heap()->true_value(); |
| 8492 | #else |
| 8493 | return isolate->heap()->false_value(); |
| 8494 | #endif |
| 8495 | } |
| 8496 | |
| 8497 | |
rossberg@chromium.org | 9259716 | 2013-08-23 13:28:00 +0000 | [diff] [blame] | 8498 | RUNTIME_FUNCTION(MaybeObject*, Runtime_IsConcurrentRecompilationSupported) { |
dslomov@chromium.org | b752d40 | 2013-06-18 11:54:54 +0000 | [diff] [blame] | 8499 | HandleScope scope(isolate); |
machenbach@chromium.org | 9af454f | 2013-11-20 09:25:57 +0000 | [diff] [blame] | 8500 | return isolate->concurrent_recompilation_enabled() |
dslomov@chromium.org | b752d40 | 2013-06-18 11:54:54 +0000 | [diff] [blame] | 8501 | ? isolate->heap()->true_value() : isolate->heap()->false_value(); |
| 8502 | } |
| 8503 | |
| 8504 | |
ager@chromium.org | a9aa5fa | 2011-04-13 08:46:07 +0000 | [diff] [blame] | 8505 | RUNTIME_FUNCTION(MaybeObject*, Runtime_OptimizeFunctionOnNextCall) { |
| 8506 | HandleScope scope(isolate); |
kmillikin@chromium.org | be6bd10 | 2012-02-23 08:45:21 +0000 | [diff] [blame] | 8507 | RUNTIME_ASSERT(args.length() == 1 || args.length() == 2); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 8508 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 0); |
kmillikin@chromium.org | be6bd10 | 2012-02-23 08:45:21 +0000 | [diff] [blame] | 8509 | |
ager@chromium.org | a9aa5fa | 2011-04-13 08:46:07 +0000 | [diff] [blame] | 8510 | if (!function->IsOptimizable()) return isolate->heap()->undefined_value(); |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8511 | function->MarkForOptimization(); |
kmillikin@chromium.org | be6bd10 | 2012-02-23 08:45:21 +0000 | [diff] [blame] | 8512 | |
| 8513 | Code* unoptimized = function->shared()->code(); |
| 8514 | if (args.length() == 2 && |
| 8515 | unoptimized->kind() == Code::FUNCTION) { |
| 8516 | CONVERT_ARG_HANDLE_CHECKED(String, type, 1); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 8517 | if (type->IsOneByteEqualTo(STATIC_ASCII_VECTOR("osr"))) { |
jkummerow@chromium.org | 3d00d0a | 2013-09-04 13:57:32 +0000 | [diff] [blame] | 8518 | // Start patching from the currently patched loop nesting level. |
| 8519 | int current_level = unoptimized->allow_osr_at_loop_nesting_level(); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 8520 | ASSERT(BackEdgeTable::Verify(isolate, unoptimized, current_level)); |
jkummerow@chromium.org | 3d00d0a | 2013-09-04 13:57:32 +0000 | [diff] [blame] | 8521 | for (int i = current_level + 1; i <= Code::kMaxLoopNestingMarker; i++) { |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 8522 | unoptimized->set_allow_osr_at_loop_nesting_level(i); |
| 8523 | isolate->runtime_profiler()->AttemptOnStackReplacement(*function); |
| 8524 | } |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8525 | } else if (type->IsOneByteEqualTo(STATIC_ASCII_VECTOR("concurrent")) && |
| 8526 | isolate->concurrent_recompilation_enabled()) { |
| 8527 | function->MarkForConcurrentOptimization(); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 8528 | } |
kmillikin@chromium.org | be6bd10 | 2012-02-23 08:45:21 +0000 | [diff] [blame] | 8529 | } |
| 8530 | |
ager@chromium.org | a9aa5fa | 2011-04-13 08:46:07 +0000 | [diff] [blame] | 8531 | return isolate->heap()->undefined_value(); |
| 8532 | } |
| 8533 | |
| 8534 | |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 8535 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NeverOptimizeFunction) { |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 8536 | HandleScope scope(isolate); |
| 8537 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 8538 | CONVERT_ARG_CHECKED(JSFunction, function, 0); |
| 8539 | ASSERT(!function->IsOptimized()); |
| 8540 | function->shared()->set_optimization_disabled(true); |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 8541 | return isolate->heap()->undefined_value(); |
| 8542 | } |
| 8543 | |
| 8544 | |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 8545 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetOptimizationStatus) { |
| 8546 | HandleScope scope(isolate); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 8547 | RUNTIME_ASSERT(args.length() == 1 || args.length() == 2); |
mstarzinger@chromium.org | e900018 | 2013-09-03 11:25:39 +0000 | [diff] [blame] | 8548 | if (!isolate->use_crankshaft()) { |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 8549 | return Smi::FromInt(4); // 4 == "never". |
| 8550 | } |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 8551 | bool sync_with_compiler_thread = true; |
| 8552 | if (args.length() == 2) { |
| 8553 | CONVERT_ARG_HANDLE_CHECKED(String, sync, 1); |
| 8554 | if (sync->IsOneByteEqualTo(STATIC_ASCII_VECTOR("no sync"))) { |
| 8555 | sync_with_compiler_thread = false; |
| 8556 | } |
| 8557 | } |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 8558 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 0); |
machenbach@chromium.org | 9af454f | 2013-11-20 09:25:57 +0000 | [diff] [blame] | 8559 | if (isolate->concurrent_recompilation_enabled() && |
| 8560 | sync_with_compiler_thread) { |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8561 | while (function->IsInOptimizationQueue()) { |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 8562 | isolate->optimizing_compiler_thread()->InstallOptimizedFunctions(); |
| 8563 | OS::Sleep(50); |
yangguo@chromium.org | 304cc33 | 2012-07-24 07:59:48 +0000 | [diff] [blame] | 8564 | } |
| 8565 | } |
danno@chromium.org | 1044a4d | 2012-04-30 12:34:39 +0000 | [diff] [blame] | 8566 | if (FLAG_always_opt) { |
| 8567 | // We may have always opt, but that is more best-effort than a real |
| 8568 | // promise, so we still say "no" if it is not optimized. |
| 8569 | return function->IsOptimized() ? Smi::FromInt(3) // 3 == "always". |
| 8570 | : Smi::FromInt(2); // 2 == "no". |
| 8571 | } |
jkummerow@chromium.org | 1048047 | 2013-07-17 08:22:15 +0000 | [diff] [blame] | 8572 | if (FLAG_deopt_every_n_times) { |
| 8573 | return Smi::FromInt(6); // 6 == "maybe deopted". |
| 8574 | } |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 8575 | return function->IsOptimized() ? Smi::FromInt(1) // 1 == "yes". |
| 8576 | : Smi::FromInt(2); // 2 == "no". |
| 8577 | } |
| 8578 | |
| 8579 | |
mstarzinger@chromium.org | a2e1a40 | 2013-10-15 08:25:05 +0000 | [diff] [blame] | 8580 | RUNTIME_FUNCTION(MaybeObject*, Runtime_UnblockConcurrentRecompilation) { |
| 8581 | RUNTIME_ASSERT(FLAG_block_concurrent_recompilation); |
| 8582 | isolate->optimizing_compiler_thread()->Unblock(); |
| 8583 | return isolate->heap()->undefined_value(); |
| 8584 | } |
| 8585 | |
| 8586 | |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 8587 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetOptimizationCount) { |
| 8588 | HandleScope scope(isolate); |
| 8589 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 8590 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 0); |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 8591 | return Smi::FromInt(function->shared()->opt_count()); |
| 8592 | } |
| 8593 | |
| 8594 | |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 8595 | static bool IsSuitableForOnStackReplacement(Isolate* isolate, |
| 8596 | Handle<JSFunction> function, |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8597 | Handle<Code> current_code) { |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 8598 | // Keep track of whether we've succeeded in optimizing. |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8599 | if (!isolate->use_crankshaft() || !current_code->optimizable()) return false; |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 8600 | // If we are trying to do OSR when there are already optimized |
| 8601 | // activations of the function, it means (a) the function is directly or |
| 8602 | // indirectly recursive and (b) an optimized invocation has been |
| 8603 | // deoptimized so that we are currently in an unoptimized activation. |
| 8604 | // Check for optimized activations of this function. |
| 8605 | for (JavaScriptFrameIterator it(isolate); !it.done(); it.Advance()) { |
| 8606 | JavaScriptFrame* frame = it.frame(); |
| 8607 | if (frame->is_optimized() && frame->function() == *function) return false; |
| 8608 | } |
| 8609 | |
| 8610 | return true; |
| 8611 | } |
| 8612 | |
| 8613 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 8614 | RUNTIME_FUNCTION(MaybeObject*, Runtime_CompileForOnStackReplacement) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 8615 | HandleScope scope(isolate); |
machenbach@chromium.org | afbdadc | 2013-12-09 16:12:18 +0000 | [diff] [blame] | 8616 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 8617 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 0); |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8618 | Handle<Code> caller_code(function->shared()->code()); |
| 8619 | |
| 8620 | // We're not prepared to handle a function with arguments object. |
| 8621 | ASSERT(!function->shared()->uses_arguments()); |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 8622 | |
machenbach@chromium.org | afbdadc | 2013-12-09 16:12:18 +0000 | [diff] [blame] | 8623 | // Passing the PC in the javascript frame from the caller directly is |
| 8624 | // not GC safe, so we walk the stack to get it. |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 8625 | JavaScriptFrameIterator it(isolate); |
| 8626 | JavaScriptFrame* frame = it.frame(); |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8627 | if (!caller_code->contains(frame->pc())) { |
machenbach@chromium.org | afbdadc | 2013-12-09 16:12:18 +0000 | [diff] [blame] | 8628 | // Code on the stack may not be the code object referenced by the shared |
| 8629 | // function info. It may have been replaced to include deoptimization data. |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8630 | caller_code = Handle<Code>(frame->LookupCode()); |
machenbach@chromium.org | afbdadc | 2013-12-09 16:12:18 +0000 | [diff] [blame] | 8631 | } |
| 8632 | |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8633 | uint32_t pc_offset = static_cast<uint32_t>( |
| 8634 | frame->pc() - caller_code->instruction_start()); |
machenbach@chromium.org | afbdadc | 2013-12-09 16:12:18 +0000 | [diff] [blame] | 8635 | |
| 8636 | #ifdef DEBUG |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 8637 | ASSERT_EQ(frame->function(), *function); |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8638 | ASSERT_EQ(frame->LookupCode(), *caller_code); |
| 8639 | ASSERT(caller_code->contains(frame->pc())); |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 8640 | #endif // DEBUG |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 8641 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 8642 | |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8643 | BailoutId ast_id = caller_code->TranslatePcOffsetToAstId(pc_offset); |
| 8644 | ASSERT(!ast_id.IsNone()); |
| 8645 | |
| 8646 | Compiler::ConcurrencyMode mode = isolate->concurrent_osr_enabled() |
| 8647 | ? Compiler::CONCURRENT : Compiler::NOT_CONCURRENT; |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 8648 | Handle<Code> result = Handle<Code>::null(); |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 8649 | |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8650 | OptimizedCompileJob* job = NULL; |
| 8651 | if (mode == Compiler::CONCURRENT) { |
| 8652 | // Gate the OSR entry with a stack check. |
| 8653 | BackEdgeTable::AddStackCheck(caller_code, pc_offset); |
| 8654 | // Poll already queued compilation jobs. |
| 8655 | OptimizingCompilerThread* thread = isolate->optimizing_compiler_thread(); |
| 8656 | if (thread->IsQueuedForOSR(function, ast_id)) { |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 8657 | if (FLAG_trace_osr) { |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8658 | PrintF("[OSR - Still waiting for queued: "); |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 8659 | function->PrintName(); |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8660 | PrintF(" at AST id %d]\n", ast_id.ToInt()); |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 8661 | } |
| 8662 | return NULL; |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 8663 | } |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 8664 | |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8665 | job = thread->FindReadyOSRCandidate(function, ast_id); |
| 8666 | } |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 8667 | |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8668 | if (job != NULL) { |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 8669 | if (FLAG_trace_osr) { |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8670 | PrintF("[OSR - Found ready: "); |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 8671 | function->PrintName(); |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8672 | PrintF(" at AST id %d]\n", ast_id.ToInt()); |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 8673 | } |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8674 | result = Compiler::GetConcurrentlyOptimizedCode(job); |
| 8675 | } else if (result.is_null() && |
| 8676 | IsSuitableForOnStackReplacement(isolate, function, caller_code)) { |
| 8677 | if (FLAG_trace_osr) { |
| 8678 | PrintF("[OSR - Compiling: "); |
| 8679 | function->PrintName(); |
| 8680 | PrintF(" at AST id %d]\n", ast_id.ToInt()); |
| 8681 | } |
| 8682 | result = Compiler::GetOptimizedCode(function, caller_code, mode, ast_id); |
| 8683 | if (result.is_identical_to(isolate->builtins()->InOptimizationQueue())) { |
| 8684 | // Optimization is queued. Return to check later. |
| 8685 | return NULL; |
| 8686 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 8687 | } |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 8688 | |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 8689 | // Revert the patched back edge table, regardless of whether OSR succeeds. |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8690 | BackEdgeTable::Revert(isolate, *caller_code); |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 8691 | |
| 8692 | // Check whether we ended up with usable optimized code. |
| 8693 | if (!result.is_null() && result->kind() == Code::OPTIMIZED_FUNCTION) { |
| 8694 | DeoptimizationInputData* data = |
| 8695 | DeoptimizationInputData::cast(result->deoptimization_data()); |
| 8696 | |
| 8697 | if (data->OsrPcOffset()->value() >= 0) { |
| 8698 | ASSERT(BailoutId(data->OsrAstId()->value()) == ast_id); |
| 8699 | if (FLAG_trace_osr) { |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8700 | PrintF("[OSR - Entry at AST id %d, offset %d in optimized code]\n", |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 8701 | ast_id.ToInt(), data->OsrPcOffset()->value()); |
| 8702 | } |
| 8703 | // TODO(titzer): this is a massive hack to make the deopt counts |
| 8704 | // match. Fix heuristics for reenabling optimizations! |
| 8705 | function->shared()->increment_deopt_count(); |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8706 | |
| 8707 | // TODO(titzer): Do not install code into the function. |
| 8708 | function->ReplaceCode(*result); |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 8709 | return *result; |
| 8710 | } |
| 8711 | } |
| 8712 | |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8713 | // Failed. |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 8714 | if (FLAG_trace_osr) { |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8715 | PrintF("[OSR - Failed: "); |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 8716 | function->PrintName(); |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8717 | PrintF(" at AST id %d]\n", ast_id.ToInt()); |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 8718 | } |
| 8719 | |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 8720 | function->ReplaceCode(function->shared()->code()); |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 8721 | return NULL; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 8722 | } |
| 8723 | |
| 8724 | |
rossberg@chromium.org | ebeba02 | 2013-08-19 09:36:44 +0000 | [diff] [blame] | 8725 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SetAllocationTimeout) { |
| 8726 | SealHandleScope shs(isolate); |
| 8727 | ASSERT(args.length() == 2); |
| 8728 | #ifdef DEBUG |
| 8729 | CONVERT_SMI_ARG_CHECKED(interval, 0); |
| 8730 | CONVERT_SMI_ARG_CHECKED(timeout, 1); |
| 8731 | isolate->heap()->set_allocation_timeout(timeout); |
| 8732 | FLAG_gc_interval = interval; |
| 8733 | #endif |
| 8734 | return isolate->heap()->undefined_value(); |
| 8735 | } |
| 8736 | |
| 8737 | |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 8738 | RUNTIME_FUNCTION(MaybeObject*, Runtime_CheckIsBootstrapping) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 8739 | SealHandleScope shs(isolate); |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 8740 | RUNTIME_ASSERT(isolate->bootstrapper()->IsActive()); |
| 8741 | return isolate->heap()->undefined_value(); |
| 8742 | } |
| 8743 | |
| 8744 | |
mstarzinger@chromium.org | 88d326b | 2012-04-23 12:57:22 +0000 | [diff] [blame] | 8745 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetRootNaN) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 8746 | SealHandleScope shs(isolate); |
mstarzinger@chromium.org | 88d326b | 2012-04-23 12:57:22 +0000 | [diff] [blame] | 8747 | RUNTIME_ASSERT(isolate->bootstrapper()->IsActive()); |
| 8748 | return isolate->heap()->nan_value(); |
| 8749 | } |
| 8750 | |
| 8751 | |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 8752 | RUNTIME_FUNCTION(MaybeObject*, Runtime_Call) { |
| 8753 | HandleScope scope(isolate); |
| 8754 | ASSERT(args.length() >= 2); |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 8755 | int argc = args.length() - 2; |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 8756 | CONVERT_ARG_CHECKED(JSReceiver, fun, argc + 1); |
| 8757 | Object* receiver = args[0]; |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 8758 | |
| 8759 | // If there are too many arguments, allocate argv via malloc. |
| 8760 | const int argv_small_size = 10; |
| 8761 | Handle<Object> argv_small_buffer[argv_small_size]; |
| 8762 | SmartArrayPointer<Handle<Object> > argv_large_buffer; |
| 8763 | Handle<Object>* argv = argv_small_buffer; |
| 8764 | if (argc > argv_small_size) { |
| 8765 | argv = new Handle<Object>[argc]; |
| 8766 | if (argv == NULL) return isolate->StackOverflow(); |
| 8767 | argv_large_buffer = SmartArrayPointer<Handle<Object> >(argv); |
| 8768 | } |
| 8769 | |
| 8770 | for (int i = 0; i < argc; ++i) { |
| 8771 | MaybeObject* maybe = args[1 + i]; |
| 8772 | Object* object; |
| 8773 | if (!maybe->To<Object>(&object)) return maybe; |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 8774 | argv[i] = Handle<Object>(object, isolate); |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 8775 | } |
| 8776 | |
| 8777 | bool threw; |
| 8778 | Handle<JSReceiver> hfun(fun); |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 8779 | Handle<Object> hreceiver(receiver, isolate); |
jkummerow@chromium.org | 2c9426b | 2013-09-05 16:31:13 +0000 | [diff] [blame] | 8780 | Handle<Object> result = Execution::Call( |
| 8781 | isolate, hfun, hreceiver, argc, argv, &threw, true); |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 8782 | |
| 8783 | if (threw) return Failure::Exception(); |
| 8784 | return *result; |
| 8785 | } |
| 8786 | |
| 8787 | |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 8788 | RUNTIME_FUNCTION(MaybeObject*, Runtime_Apply) { |
| 8789 | HandleScope scope(isolate); |
| 8790 | ASSERT(args.length() == 5); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 8791 | CONVERT_ARG_HANDLE_CHECKED(JSReceiver, fun, 0); |
rossberg@chromium.org | fab1498 | 2012-01-05 15:02:15 +0000 | [diff] [blame] | 8792 | Handle<Object> receiver = args.at<Object>(1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 8793 | CONVERT_ARG_HANDLE_CHECKED(JSObject, arguments, 2); |
rossberg@chromium.org | fab1498 | 2012-01-05 15:02:15 +0000 | [diff] [blame] | 8794 | CONVERT_SMI_ARG_CHECKED(offset, 3); |
| 8795 | CONVERT_SMI_ARG_CHECKED(argc, 4); |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 8796 | RUNTIME_ASSERT(offset >= 0); |
| 8797 | RUNTIME_ASSERT(argc >= 0); |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 8798 | |
| 8799 | // If there are too many arguments, allocate argv via malloc. |
| 8800 | const int argv_small_size = 10; |
| 8801 | Handle<Object> argv_small_buffer[argv_small_size]; |
| 8802 | SmartArrayPointer<Handle<Object> > argv_large_buffer; |
| 8803 | Handle<Object>* argv = argv_small_buffer; |
| 8804 | if (argc > argv_small_size) { |
| 8805 | argv = new Handle<Object>[argc]; |
| 8806 | if (argv == NULL) return isolate->StackOverflow(); |
| 8807 | argv_large_buffer = SmartArrayPointer<Handle<Object> >(argv); |
| 8808 | } |
| 8809 | |
| 8810 | for (int i = 0; i < argc; ++i) { |
jkummerow@chromium.org | 3d00d0a | 2013-09-04 13:57:32 +0000 | [diff] [blame] | 8811 | argv[i] = Object::GetElement(isolate, arguments, offset + i); |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 8812 | } |
| 8813 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 8814 | bool threw; |
jkummerow@chromium.org | 2c9426b | 2013-09-05 16:31:13 +0000 | [diff] [blame] | 8815 | Handle<Object> result = Execution::Call( |
| 8816 | isolate, fun, receiver, argc, argv, &threw, true); |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 8817 | |
| 8818 | if (threw) return Failure::Exception(); |
| 8819 | return *result; |
| 8820 | } |
| 8821 | |
| 8822 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 8823 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetFunctionDelegate) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 8824 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 8825 | ASSERT(args.length() == 1); |
| 8826 | RUNTIME_ASSERT(!args[0]->IsJSFunction()); |
mstarzinger@chromium.org | e900018 | 2013-09-03 11:25:39 +0000 | [diff] [blame] | 8827 | return *Execution::GetFunctionDelegate(isolate, args.at<Object>(0)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 8828 | } |
| 8829 | |
| 8830 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 8831 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetConstructorDelegate) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 8832 | HandleScope scope(isolate); |
sgjesse@chromium.org | 05521fc | 2009-05-21 07:37:44 +0000 | [diff] [blame] | 8833 | ASSERT(args.length() == 1); |
| 8834 | RUNTIME_ASSERT(!args[0]->IsJSFunction()); |
mstarzinger@chromium.org | e900018 | 2013-09-03 11:25:39 +0000 | [diff] [blame] | 8835 | return *Execution::GetConstructorDelegate(isolate, args.at<Object>(0)); |
sgjesse@chromium.org | 05521fc | 2009-05-21 07:37:44 +0000 | [diff] [blame] | 8836 | } |
| 8837 | |
| 8838 | |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 8839 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NewGlobalContext) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 8840 | SealHandleScope shs(isolate); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 8841 | ASSERT(args.length() == 2); |
| 8842 | |
| 8843 | CONVERT_ARG_CHECKED(JSFunction, function, 0); |
| 8844 | CONVERT_ARG_CHECKED(ScopeInfo, scope_info, 1); |
| 8845 | Context* result; |
| 8846 | MaybeObject* maybe_result = |
| 8847 | isolate->heap()->AllocateGlobalContext(function, scope_info); |
| 8848 | if (!maybe_result->To(&result)) return maybe_result; |
| 8849 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 8850 | ASSERT(function->context() == isolate->context()); |
| 8851 | ASSERT(function->context()->global_object() == result->global_object()); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 8852 | isolate->set_context(result); |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 8853 | result->global_object()->set_global_context(result); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 8854 | |
| 8855 | return result; // non-failure |
| 8856 | } |
| 8857 | |
| 8858 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 8859 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NewFunctionContext) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 8860 | SealHandleScope shs(isolate); |
kasper.lund | 7276f14 | 2008-07-30 08:49:36 +0000 | [diff] [blame] | 8861 | ASSERT(args.length() == 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 8862 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 8863 | CONVERT_ARG_CHECKED(JSFunction, function, 0); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 8864 | int length = function->shared()->scope_info()->ContextLength(); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 8865 | Context* result; |
| 8866 | MaybeObject* maybe_result = |
| 8867 | isolate->heap()->AllocateFunctionContext(length, function); |
| 8868 | if (!maybe_result->To(&result)) return maybe_result; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 8869 | |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 8870 | isolate->set_context(result); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 8871 | |
kasper.lund | 7276f14 | 2008-07-30 08:49:36 +0000 | [diff] [blame] | 8872 | return result; // non-failure |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 8873 | } |
| 8874 | |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 8875 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 8876 | RUNTIME_FUNCTION(MaybeObject*, Runtime_PushWithContext) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 8877 | SealHandleScope shs(isolate); |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 8878 | ASSERT(args.length() == 2); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 8879 | JSReceiver* extension_object; |
| 8880 | if (args[0]->IsJSReceiver()) { |
| 8881 | extension_object = JSReceiver::cast(args[0]); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 8882 | } else { |
| 8883 | // Convert the object to a proper JavaScript object. |
jkummerow@chromium.org | 3d00d0a | 2013-09-04 13:57:32 +0000 | [diff] [blame] | 8884 | MaybeObject* maybe_js_object = args[0]->ToObject(isolate); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 8885 | if (!maybe_js_object->To(&extension_object)) { |
| 8886 | if (Failure::cast(maybe_js_object)->IsInternalError()) { |
| 8887 | HandleScope scope(isolate); |
| 8888 | Handle<Object> handle = args.at<Object>(0); |
| 8889 | Handle<Object> result = |
| 8890 | isolate->factory()->NewTypeError("with_expression", |
| 8891 | HandleVector(&handle, 1)); |
| 8892 | return isolate->Throw(*result); |
| 8893 | } else { |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 8894 | return maybe_js_object; |
| 8895 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 8896 | } |
| 8897 | } |
| 8898 | |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 8899 | JSFunction* function; |
| 8900 | if (args[1]->IsSmi()) { |
| 8901 | // A smi sentinel indicates a context nested inside global code rather |
| 8902 | // than some function. There is a canonical empty function that can be |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 8903 | // gotten from the native context. |
| 8904 | function = isolate->context()->native_context()->closure(); |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 8905 | } else { |
| 8906 | function = JSFunction::cast(args[1]); |
| 8907 | } |
| 8908 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 8909 | Context* context; |
| 8910 | MaybeObject* maybe_context = |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 8911 | isolate->heap()->AllocateWithContext(function, |
| 8912 | isolate->context(), |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 8913 | extension_object); |
| 8914 | if (!maybe_context->To(&context)) return maybe_context; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 8915 | isolate->set_context(context); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 8916 | return context; |
christian.plesner.hansen@gmail.com | 37abdec | 2009-01-06 14:43:28 +0000 | [diff] [blame] | 8917 | } |
| 8918 | |
| 8919 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 8920 | RUNTIME_FUNCTION(MaybeObject*, Runtime_PushCatchContext) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 8921 | SealHandleScope shs(isolate); |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 8922 | ASSERT(args.length() == 3); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 8923 | String* name = String::cast(args[0]); |
| 8924 | Object* thrown_object = args[1]; |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 8925 | JSFunction* function; |
| 8926 | if (args[2]->IsSmi()) { |
| 8927 | // A smi sentinel indicates a context nested inside global code rather |
| 8928 | // than some function. There is a canonical empty function that can be |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 8929 | // gotten from the native context. |
| 8930 | function = isolate->context()->native_context()->closure(); |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 8931 | } else { |
| 8932 | function = JSFunction::cast(args[2]); |
| 8933 | } |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 8934 | Context* context; |
| 8935 | MaybeObject* maybe_context = |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 8936 | isolate->heap()->AllocateCatchContext(function, |
| 8937 | isolate->context(), |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 8938 | name, |
| 8939 | thrown_object); |
| 8940 | if (!maybe_context->To(&context)) return maybe_context; |
| 8941 | isolate->set_context(context); |
| 8942 | return context; |
christian.plesner.hansen@gmail.com | 37abdec | 2009-01-06 14:43:28 +0000 | [diff] [blame] | 8943 | } |
| 8944 | |
| 8945 | |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 8946 | RUNTIME_FUNCTION(MaybeObject*, Runtime_PushBlockContext) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 8947 | SealHandleScope shs(isolate); |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 8948 | ASSERT(args.length() == 2); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 8949 | ScopeInfo* scope_info = ScopeInfo::cast(args[0]); |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 8950 | JSFunction* function; |
| 8951 | if (args[1]->IsSmi()) { |
| 8952 | // A smi sentinel indicates a context nested inside global code rather |
| 8953 | // than some function. There is a canonical empty function that can be |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 8954 | // gotten from the native context. |
| 8955 | function = isolate->context()->native_context()->closure(); |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 8956 | } else { |
| 8957 | function = JSFunction::cast(args[1]); |
| 8958 | } |
| 8959 | Context* context; |
| 8960 | MaybeObject* maybe_context = |
| 8961 | isolate->heap()->AllocateBlockContext(function, |
| 8962 | isolate->context(), |
| 8963 | scope_info); |
| 8964 | if (!maybe_context->To(&context)) return maybe_context; |
| 8965 | isolate->set_context(context); |
| 8966 | return context; |
| 8967 | } |
| 8968 | |
| 8969 | |
danno@chromium.org | 81cac2b | 2012-07-10 11:28:27 +0000 | [diff] [blame] | 8970 | RUNTIME_FUNCTION(MaybeObject*, Runtime_IsJSModule) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 8971 | SealHandleScope shs(isolate); |
danno@chromium.org | 81cac2b | 2012-07-10 11:28:27 +0000 | [diff] [blame] | 8972 | ASSERT(args.length() == 1); |
| 8973 | Object* obj = args[0]; |
| 8974 | return isolate->heap()->ToBoolean(obj->IsJSModule()); |
| 8975 | } |
| 8976 | |
| 8977 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 8978 | RUNTIME_FUNCTION(MaybeObject*, Runtime_PushModuleContext) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 8979 | SealHandleScope shs(isolate); |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 8980 | ASSERT(args.length() == 2); |
| 8981 | CONVERT_SMI_ARG_CHECKED(index, 0); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 8982 | |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 8983 | if (!args[1]->IsScopeInfo()) { |
| 8984 | // Module already initialized. Find hosting context and retrieve context. |
| 8985 | Context* host = Context::cast(isolate->context())->global_context(); |
| 8986 | Context* context = Context::cast(host->get(index)); |
| 8987 | ASSERT(context->previous() == isolate->context()); |
| 8988 | isolate->set_context(context); |
| 8989 | return context; |
| 8990 | } |
| 8991 | |
| 8992 | CONVERT_ARG_HANDLE_CHECKED(ScopeInfo, scope_info, 1); |
| 8993 | |
| 8994 | // Allocate module context. |
| 8995 | HandleScope scope(isolate); |
| 8996 | Factory* factory = isolate->factory(); |
| 8997 | Handle<Context> context = factory->NewModuleContext(scope_info); |
| 8998 | Handle<JSModule> module = factory->NewJSModule(context, scope_info); |
| 8999 | context->set_module(*module); |
danno@chromium.org | 81cac2b | 2012-07-10 11:28:27 +0000 | [diff] [blame] | 9000 | Context* previous = isolate->context(); |
danno@chromium.org | 81cac2b | 2012-07-10 11:28:27 +0000 | [diff] [blame] | 9001 | context->set_previous(previous); |
| 9002 | context->set_closure(previous->closure()); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 9003 | context->set_global_object(previous->global_object()); |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 9004 | isolate->set_context(*context); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 9005 | |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 9006 | // Find hosting scope and initialize internal variable holding module there. |
| 9007 | previous->global_context()->set(index, *context); |
| 9008 | |
| 9009 | return *context; |
| 9010 | } |
| 9011 | |
| 9012 | |
| 9013 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DeclareModules) { |
| 9014 | HandleScope scope(isolate); |
| 9015 | ASSERT(args.length() == 1); |
| 9016 | CONVERT_ARG_HANDLE_CHECKED(FixedArray, descriptions, 0); |
| 9017 | Context* host_context = isolate->context(); |
| 9018 | |
| 9019 | for (int i = 0; i < descriptions->length(); ++i) { |
| 9020 | Handle<ModuleInfo> description(ModuleInfo::cast(descriptions->get(i))); |
| 9021 | int host_index = description->host_index(); |
| 9022 | Handle<Context> context(Context::cast(host_context->get(host_index))); |
| 9023 | Handle<JSModule> module(context->module()); |
| 9024 | |
| 9025 | for (int j = 0; j < description->length(); ++j) { |
| 9026 | Handle<String> name(description->name(j)); |
| 9027 | VariableMode mode = description->mode(j); |
| 9028 | int index = description->index(j); |
| 9029 | switch (mode) { |
| 9030 | case VAR: |
| 9031 | case LET: |
| 9032 | case CONST: |
| 9033 | case CONST_HARMONY: { |
| 9034 | PropertyAttributes attr = |
| 9035 | IsImmutableVariableMode(mode) ? FROZEN : SEALED; |
| 9036 | Handle<AccessorInfo> info = |
| 9037 | Accessors::MakeModuleExport(name, index, attr); |
jkummerow@chromium.org | 8fa5bd9 | 2013-09-02 11:45:09 +0000 | [diff] [blame] | 9038 | Handle<Object> result = JSObject::SetAccessor(module, info); |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 9039 | ASSERT(!(result.is_null() || result->IsUndefined())); |
| 9040 | USE(result); |
| 9041 | break; |
| 9042 | } |
| 9043 | case MODULE: { |
| 9044 | Object* referenced_context = Context::cast(host_context)->get(index); |
| 9045 | Handle<JSModule> value(Context::cast(referenced_context)->module()); |
| 9046 | JSReceiver::SetProperty(module, name, value, FROZEN, kStrictMode); |
| 9047 | break; |
| 9048 | } |
| 9049 | case INTERNAL: |
| 9050 | case TEMPORARY: |
| 9051 | case DYNAMIC: |
| 9052 | case DYNAMIC_GLOBAL: |
| 9053 | case DYNAMIC_LOCAL: |
| 9054 | UNREACHABLE(); |
| 9055 | } |
| 9056 | } |
| 9057 | |
| 9058 | JSObject::PreventExtensions(module); |
| 9059 | } |
| 9060 | |
| 9061 | ASSERT(!isolate->has_pending_exception()); |
| 9062 | return isolate->heap()->undefined_value(); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 9063 | } |
| 9064 | |
| 9065 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 9066 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DeleteContextSlot) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9067 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9068 | ASSERT(args.length() == 2); |
| 9069 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 9070 | CONVERT_ARG_HANDLE_CHECKED(Context, context, 0); |
| 9071 | CONVERT_ARG_HANDLE_CHECKED(String, name, 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9072 | |
| 9073 | int index; |
| 9074 | PropertyAttributes attributes; |
| 9075 | ContextLookupFlags flags = FOLLOW_CHAINS; |
yangguo@chromium.org | 80c42ed | 2011-08-31 09:03:56 +0000 | [diff] [blame] | 9076 | BindingFlags binding_flags; |
| 9077 | Handle<Object> holder = context->Lookup(name, |
| 9078 | flags, |
| 9079 | &index, |
| 9080 | &attributes, |
| 9081 | &binding_flags); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9082 | |
ager@chromium.org | 0ee099b | 2011-01-25 14:06:47 +0000 | [diff] [blame] | 9083 | // If the slot was not found the result is true. |
| 9084 | if (holder.is_null()) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9085 | return isolate->heap()->true_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9086 | } |
| 9087 | |
ager@chromium.org | 0ee099b | 2011-01-25 14:06:47 +0000 | [diff] [blame] | 9088 | // If the slot was found in a context, it should be DONT_DELETE. |
| 9089 | if (holder->IsContext()) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9090 | return isolate->heap()->false_value(); |
ager@chromium.org | 0ee099b | 2011-01-25 14:06:47 +0000 | [diff] [blame] | 9091 | } |
| 9092 | |
| 9093 | // The slot was found in a JSObject, either a context extension object, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 9094 | // the global object, or the subject of a with. Try to delete it |
| 9095 | // (respecting DONT_DELETE). |
ager@chromium.org | 0ee099b | 2011-01-25 14:06:47 +0000 | [diff] [blame] | 9096 | Handle<JSObject> object = Handle<JSObject>::cast(holder); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 9097 | Handle<Object> result = JSReceiver::DeleteProperty(object, name); |
| 9098 | RETURN_IF_EMPTY_HANDLE(isolate, result); |
| 9099 | return *result; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9100 | } |
| 9101 | |
| 9102 | |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 9103 | // A mechanism to return a pair of Object pointers in registers (if possible). |
| 9104 | // How this is achieved is calling convention-dependent. |
| 9105 | // All currently supported x86 compiles uses calling conventions that are cdecl |
| 9106 | // variants where a 64-bit value is returned in two 32-bit registers |
| 9107 | // (edx:eax on ia32, r1:r0 on ARM). |
| 9108 | // In AMD-64 calling convention a struct of two pointers is returned in rdx:rax. |
| 9109 | // In Win64 calling convention, a struct of two pointers is returned in memory, |
| 9110 | // allocated by the caller, and passed as a pointer in a hidden first parameter. |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 9111 | #ifdef V8_HOST_ARCH_64_BIT |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 9112 | struct ObjectPair { |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 9113 | MaybeObject* x; |
| 9114 | MaybeObject* y; |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 9115 | }; |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 9116 | |
mstarzinger@chromium.org | e0e1b0d | 2013-07-08 08:38:06 +0000 | [diff] [blame] | 9117 | |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 9118 | static inline ObjectPair MakePair(MaybeObject* x, MaybeObject* y) { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 9119 | ObjectPair result = {x, y}; |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 9120 | // Pointers x and y returned in rax and rdx, in AMD-x64-abi. |
| 9121 | // In Win64 they are assigned to a hidden first argument. |
| 9122 | return result; |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 9123 | } |
| 9124 | #else |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 9125 | typedef uint64_t ObjectPair; |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 9126 | static inline ObjectPair MakePair(MaybeObject* x, MaybeObject* y) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9127 | return reinterpret_cast<uint32_t>(x) | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 9128 | (reinterpret_cast<ObjectPair>(y) << 32); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9129 | } |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 9130 | #endif |
| 9131 | |
| 9132 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9133 | static inline MaybeObject* Unhole(Heap* heap, |
| 9134 | MaybeObject* x, |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 9135 | PropertyAttributes attributes) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9136 | ASSERT(!x->IsTheHole() || (attributes & READ_ONLY) != 0); |
| 9137 | USE(attributes); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9138 | return x->IsTheHole() ? heap->undefined_value() : x; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9139 | } |
| 9140 | |
| 9141 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 9142 | static Object* ComputeReceiverForNonGlobal(Isolate* isolate, |
| 9143 | JSObject* holder) { |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 9144 | ASSERT(!holder->IsGlobalObject()); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9145 | Context* top = isolate->context(); |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 9146 | // Get the context extension function. |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 9147 | JSFunction* context_extension_function = |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 9148 | top->native_context()->context_extension_function(); |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 9149 | // If the holder isn't a context extension object, we just return it |
| 9150 | // as the receiver. This allows arguments objects to be used as |
| 9151 | // receivers, but only if they are put in the context scope chain |
| 9152 | // explicitly via a with-statement. |
| 9153 | Object* constructor = holder->map()->constructor(); |
| 9154 | if (constructor != context_extension_function) return holder; |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 9155 | // Fall back to using the global object as the implicit receiver if |
| 9156 | // the property turns out to be a local variable allocated in a |
| 9157 | // context extension object - introduced via eval. Implicit global |
| 9158 | // receivers are indicated with the hole value. |
| 9159 | return isolate->heap()->the_hole_value(); |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 9160 | } |
| 9161 | |
| 9162 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9163 | static ObjectPair LoadContextSlotHelper(Arguments args, |
| 9164 | Isolate* isolate, |
| 9165 | bool throw_error) { |
| 9166 | HandleScope scope(isolate); |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 9167 | ASSERT_EQ(2, args.length()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9168 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 9169 | if (!args[0]->IsContext() || !args[1]->IsString()) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9170 | return MakePair(isolate->ThrowIllegalOperation(), NULL); |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 9171 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9172 | Handle<Context> context = args.at<Context>(0); |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 9173 | Handle<String> name = args.at<String>(1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9174 | |
| 9175 | int index; |
| 9176 | PropertyAttributes attributes; |
| 9177 | ContextLookupFlags flags = FOLLOW_CHAINS; |
yangguo@chromium.org | 80c42ed | 2011-08-31 09:03:56 +0000 | [diff] [blame] | 9178 | BindingFlags binding_flags; |
| 9179 | Handle<Object> holder = context->Lookup(name, |
| 9180 | flags, |
| 9181 | &index, |
| 9182 | &attributes, |
| 9183 | &binding_flags); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 9184 | if (isolate->has_pending_exception()) { |
| 9185 | return MakePair(Failure::Exception(), NULL); |
| 9186 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9187 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 9188 | // If the index is non-negative, the slot has been found in a context. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9189 | if (index >= 0) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 9190 | ASSERT(holder->IsContext()); |
| 9191 | // If the "property" we were looking for is a local variable, the |
| 9192 | // receiver is the global object; see ECMA-262, 3rd., 10.1.6 and 10.2.3. |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 9193 | // |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 9194 | // Use the hole as the receiver to signal that the receiver is implicit |
| 9195 | // and that the global receiver should be used (as distinguished from an |
| 9196 | // explicit receiver that happens to be a global object). |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 9197 | Handle<Object> receiver = isolate->factory()->the_hole_value(); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 9198 | Object* value = Context::cast(*holder)->get(index); |
yangguo@chromium.org | 80c42ed | 2011-08-31 09:03:56 +0000 | [diff] [blame] | 9199 | // Check for uninitialized bindings. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 9200 | switch (binding_flags) { |
| 9201 | case MUTABLE_CHECK_INITIALIZED: |
| 9202 | case IMMUTABLE_CHECK_INITIALIZED_HARMONY: |
| 9203 | if (value->IsTheHole()) { |
| 9204 | Handle<Object> reference_error = |
| 9205 | isolate->factory()->NewReferenceError("not_defined", |
| 9206 | HandleVector(&name, 1)); |
| 9207 | return MakePair(isolate->Throw(*reference_error), NULL); |
| 9208 | } |
| 9209 | // FALLTHROUGH |
| 9210 | case MUTABLE_IS_INITIALIZED: |
| 9211 | case IMMUTABLE_IS_INITIALIZED: |
| 9212 | case IMMUTABLE_IS_INITIALIZED_HARMONY: |
| 9213 | ASSERT(!value->IsTheHole()); |
| 9214 | return MakePair(value, *receiver); |
| 9215 | case IMMUTABLE_CHECK_INITIALIZED: |
| 9216 | return MakePair(Unhole(isolate->heap(), value, attributes), *receiver); |
| 9217 | case MISSING_BINDING: |
| 9218 | UNREACHABLE(); |
| 9219 | return MakePair(NULL, NULL); |
yangguo@chromium.org | 80c42ed | 2011-08-31 09:03:56 +0000 | [diff] [blame] | 9220 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9221 | } |
| 9222 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 9223 | // Otherwise, if the slot was found the holder is a context extension |
| 9224 | // object, subject of a with, or a global object. We read the named |
| 9225 | // property from it. |
| 9226 | if (!holder.is_null()) { |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 9227 | Handle<JSReceiver> object = Handle<JSReceiver>::cast(holder); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 9228 | ASSERT(object->IsJSProxy() || JSReceiver::HasProperty(object, name)); |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 9229 | // GetProperty below can cause GC. |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 9230 | Handle<Object> receiver_handle( |
| 9231 | object->IsGlobalObject() |
| 9232 | ? GlobalObject::cast(*object)->global_receiver() |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 9233 | : object->IsJSProxy() ? static_cast<Object*>(*object) |
| 9234 | : ComputeReceiverForNonGlobal(isolate, JSObject::cast(*object)), |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 9235 | isolate); |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 9236 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 9237 | // No need to unhole the value here. This is taken care of by the |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 9238 | // GetProperty function. |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 9239 | MaybeObject* value = object->GetProperty(*name); |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 9240 | return MakePair(value, *receiver_handle); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9241 | } |
| 9242 | |
| 9243 | if (throw_error) { |
| 9244 | // The property doesn't exist - throw exception. |
| 9245 | Handle<Object> reference_error = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9246 | isolate->factory()->NewReferenceError("not_defined", |
| 9247 | HandleVector(&name, 1)); |
| 9248 | return MakePair(isolate->Throw(*reference_error), NULL); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9249 | } else { |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 9250 | // The property doesn't exist - return undefined. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9251 | return MakePair(isolate->heap()->undefined_value(), |
| 9252 | isolate->heap()->undefined_value()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9253 | } |
| 9254 | } |
| 9255 | |
| 9256 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 9257 | RUNTIME_FUNCTION(ObjectPair, Runtime_LoadContextSlot) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9258 | return LoadContextSlotHelper(args, isolate, true); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9259 | } |
| 9260 | |
| 9261 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 9262 | RUNTIME_FUNCTION(ObjectPair, Runtime_LoadContextSlotNoReferenceError) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9263 | return LoadContextSlotHelper(args, isolate, false); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9264 | } |
| 9265 | |
| 9266 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 9267 | RUNTIME_FUNCTION(MaybeObject*, Runtime_StoreContextSlot) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9268 | HandleScope scope(isolate); |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 9269 | ASSERT(args.length() == 4); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9270 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9271 | Handle<Object> value(args[0], isolate); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 9272 | CONVERT_ARG_HANDLE_CHECKED(Context, context, 1); |
| 9273 | CONVERT_ARG_HANDLE_CHECKED(String, name, 2); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 9274 | CONVERT_LANGUAGE_MODE_ARG(language_mode, 3); |
| 9275 | StrictModeFlag strict_mode = (language_mode == CLASSIC_MODE) |
| 9276 | ? kNonStrictMode : kStrictMode; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9277 | |
| 9278 | int index; |
| 9279 | PropertyAttributes attributes; |
| 9280 | ContextLookupFlags flags = FOLLOW_CHAINS; |
yangguo@chromium.org | 80c42ed | 2011-08-31 09:03:56 +0000 | [diff] [blame] | 9281 | BindingFlags binding_flags; |
| 9282 | Handle<Object> holder = context->Lookup(name, |
| 9283 | flags, |
| 9284 | &index, |
| 9285 | &attributes, |
| 9286 | &binding_flags); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 9287 | if (isolate->has_pending_exception()) return Failure::Exception(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9288 | |
| 9289 | if (index >= 0) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 9290 | // The property was found in a context slot. |
| 9291 | Handle<Context> context = Handle<Context>::cast(holder); |
| 9292 | if (binding_flags == MUTABLE_CHECK_INITIALIZED && |
| 9293 | context->get(index)->IsTheHole()) { |
| 9294 | Handle<Object> error = |
| 9295 | isolate->factory()->NewReferenceError("not_defined", |
| 9296 | HandleVector(&name, 1)); |
| 9297 | return isolate->Throw(*error); |
| 9298 | } |
| 9299 | // Ignore if read_only variable. |
| 9300 | if ((attributes & READ_ONLY) == 0) { |
| 9301 | // Context is a fixed array and set cannot fail. |
| 9302 | context->set(index, *value); |
| 9303 | } else if (strict_mode == kStrictMode) { |
| 9304 | // Setting read only property in strict mode. |
| 9305 | Handle<Object> error = |
| 9306 | isolate->factory()->NewTypeError("strict_cannot_assign", |
| 9307 | HandleVector(&name, 1)); |
| 9308 | return isolate->Throw(*error); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9309 | } |
| 9310 | return *value; |
| 9311 | } |
| 9312 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 9313 | // Slow case: The property is not in a context slot. It is either in a |
| 9314 | // context extension object, a property of the subject of a with, or a |
| 9315 | // property of the global object. |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 9316 | Handle<JSReceiver> object; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9317 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 9318 | if (!holder.is_null()) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 9319 | // The property exists on the holder. |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 9320 | object = Handle<JSReceiver>::cast(holder); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9321 | } else { |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 9322 | // The property was not found. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9323 | ASSERT(attributes == ABSENT); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 9324 | |
| 9325 | if (strict_mode == kStrictMode) { |
| 9326 | // Throw in strict mode (assignment to undefined variable). |
| 9327 | Handle<Object> error = |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 9328 | isolate->factory()->NewReferenceError( |
| 9329 | "not_defined", HandleVector(&name, 1)); |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 9330 | return isolate->Throw(*error); |
| 9331 | } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 9332 | // In non-strict mode, the property is added to the global object. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9333 | attributes = NONE; |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 9334 | object = Handle<JSReceiver>(isolate->context()->global_object()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9335 | } |
| 9336 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 9337 | // Set the property if it's not read only or doesn't yet exist. |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 9338 | if ((attributes & READ_ONLY) == 0 || |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 9339 | (object->GetLocalPropertyAttribute(*name) == ABSENT)) { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 9340 | RETURN_IF_EMPTY_HANDLE( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9341 | isolate, |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 9342 | JSReceiver::SetProperty(object, name, value, NONE, strict_mode)); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 9343 | } else if (strict_mode == kStrictMode && (attributes & READ_ONLY) != 0) { |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 9344 | // Setting read only property in strict mode. |
| 9345 | Handle<Object> error = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9346 | isolate->factory()->NewTypeError( |
| 9347 | "strict_cannot_assign", HandleVector(&name, 1)); |
| 9348 | return isolate->Throw(*error); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9349 | } |
| 9350 | return *value; |
| 9351 | } |
| 9352 | |
| 9353 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 9354 | RUNTIME_FUNCTION(MaybeObject*, Runtime_Throw) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9355 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9356 | ASSERT(args.length() == 1); |
| 9357 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9358 | return isolate->Throw(args[0]); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9359 | } |
| 9360 | |
| 9361 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 9362 | RUNTIME_FUNCTION(MaybeObject*, Runtime_ReThrow) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9363 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9364 | ASSERT(args.length() == 1); |
| 9365 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9366 | return isolate->ReThrow(args[0]); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9367 | } |
| 9368 | |
| 9369 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 9370 | RUNTIME_FUNCTION(MaybeObject*, Runtime_PromoteScheduledException) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 9371 | SealHandleScope shs(isolate); |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 9372 | ASSERT_EQ(0, args.length()); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9373 | return isolate->PromoteScheduledException(); |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 9374 | } |
| 9375 | |
| 9376 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 9377 | RUNTIME_FUNCTION(MaybeObject*, Runtime_ThrowReferenceError) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9378 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9379 | ASSERT(args.length() == 1); |
| 9380 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9381 | Handle<Object> name(args[0], isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9382 | Handle<Object> reference_error = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9383 | isolate->factory()->NewReferenceError("not_defined", |
| 9384 | HandleVector(&name, 1)); |
| 9385 | return isolate->Throw(*reference_error); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9386 | } |
| 9387 | |
| 9388 | |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 9389 | RUNTIME_FUNCTION(MaybeObject*, Runtime_ThrowNotDateError) { |
| 9390 | HandleScope scope(isolate); |
| 9391 | ASSERT(args.length() == 0); |
| 9392 | return isolate->Throw(*isolate->factory()->NewTypeError( |
| 9393 | "not_date_object", HandleVector<Object>(NULL, 0))); |
| 9394 | } |
| 9395 | |
| 9396 | |
machenbach@chromium.org | 9af454f | 2013-11-20 09:25:57 +0000 | [diff] [blame] | 9397 | RUNTIME_FUNCTION(MaybeObject*, Runtime_ThrowMessage) { |
| 9398 | HandleScope scope(isolate); |
| 9399 | ASSERT(args.length() == 1); |
| 9400 | CONVERT_SMI_ARG_CHECKED(message_id, 0); |
| 9401 | const char* message = GetBailoutReason( |
| 9402 | static_cast<BailoutReason>(message_id)); |
| 9403 | Handle<Name> message_handle = |
| 9404 | isolate->factory()->NewStringFromAscii(CStrVector(message)); |
| 9405 | return isolate->Throw(*message_handle); |
| 9406 | } |
| 9407 | |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 9408 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 9409 | RUNTIME_FUNCTION(MaybeObject*, Runtime_StackGuard) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 9410 | SealHandleScope shs(isolate); |
whesse@chromium.org | 4a5224e | 2010-10-20 12:37:07 +0000 | [diff] [blame] | 9411 | ASSERT(args.length() == 0); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9412 | |
| 9413 | // First check if this is a real stack overflow. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9414 | if (isolate->stack_guard()->IsStackOverflow()) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9415 | return isolate->StackOverflow(); |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 9416 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9417 | |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 9418 | return Execution::HandleStackGuardInterrupt(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9419 | } |
| 9420 | |
| 9421 | |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 9422 | RUNTIME_FUNCTION(MaybeObject*, Runtime_TryInstallOptimizedCode) { |
dslomov@chromium.org | 4a35c5a | 2013-09-13 07:28:52 +0000 | [diff] [blame] | 9423 | HandleScope scope(isolate); |
| 9424 | ASSERT(args.length() == 1); |
| 9425 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 0); |
| 9426 | |
| 9427 | // First check if this is a real stack overflow. |
| 9428 | if (isolate->stack_guard()->IsStackOverflow()) { |
| 9429 | SealHandleScope shs(isolate); |
| 9430 | return isolate->StackOverflow(); |
| 9431 | } |
| 9432 | |
| 9433 | isolate->optimizing_compiler_thread()->InstallOptimizedFunctions(); |
| 9434 | return (function->IsOptimized()) ? function->code() |
| 9435 | : function->shared()->code(); |
| 9436 | } |
| 9437 | |
| 9438 | |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 9439 | RUNTIME_FUNCTION(MaybeObject*, Runtime_Interrupt) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 9440 | SealHandleScope shs(isolate); |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 9441 | ASSERT(args.length() == 0); |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 9442 | return Execution::HandleStackGuardInterrupt(isolate); |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 9443 | } |
| 9444 | |
| 9445 | |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 9446 | static int StackSize(Isolate* isolate) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9447 | int n = 0; |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 9448 | for (JavaScriptFrameIterator it(isolate); !it.done(); it.Advance()) n++; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9449 | return n; |
| 9450 | } |
| 9451 | |
| 9452 | |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 9453 | static void PrintTransition(Isolate* isolate, Object* result) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9454 | // indentation |
| 9455 | { const int nmax = 80; |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 9456 | int n = StackSize(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9457 | if (n <= nmax) |
| 9458 | PrintF("%4d:%*s", n, n, ""); |
| 9459 | else |
| 9460 | PrintF("%4d:%*s", n, nmax, "..."); |
| 9461 | } |
| 9462 | |
| 9463 | if (result == NULL) { |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 9464 | JavaScriptFrame::PrintTop(isolate, stdout, true, false); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 9465 | PrintF(" {\n"); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9466 | } else { |
| 9467 | // function result |
| 9468 | PrintF("} -> "); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 9469 | result->ShortPrint(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9470 | PrintF("\n"); |
| 9471 | } |
| 9472 | } |
| 9473 | |
| 9474 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 9475 | RUNTIME_FUNCTION(MaybeObject*, Runtime_TraceEnter) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 9476 | SealHandleScope shs(isolate); |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 9477 | ASSERT(args.length() == 0); |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 9478 | PrintTransition(isolate, NULL); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9479 | return isolate->heap()->undefined_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9480 | } |
| 9481 | |
| 9482 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 9483 | RUNTIME_FUNCTION(MaybeObject*, Runtime_TraceExit) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 9484 | SealHandleScope shs(isolate); |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 9485 | PrintTransition(isolate, args[0]); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9486 | return args[0]; // return TOS |
| 9487 | } |
| 9488 | |
| 9489 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 9490 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DebugPrint) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 9491 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9492 | ASSERT(args.length() == 1); |
| 9493 | |
| 9494 | #ifdef DEBUG |
| 9495 | if (args[0]->IsString()) { |
| 9496 | // If we have a string, assume it's a code "marker" |
| 9497 | // and print some interesting cpu debugging info. |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 9498 | JavaScriptFrameIterator it(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9499 | JavaScriptFrame* frame = it.frame(); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 9500 | PrintF("fp = %p, sp = %p, caller_sp = %p: ", |
| 9501 | frame->fp(), frame->sp(), frame->caller_sp()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9502 | } else { |
| 9503 | PrintF("DebugPrint: "); |
| 9504 | } |
| 9505 | args[0]->Print(); |
sgjesse@chromium.org | ac6aa17 | 2009-12-04 12:29:05 +0000 | [diff] [blame] | 9506 | if (args[0]->IsHeapObject()) { |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 9507 | PrintF("\n"); |
sgjesse@chromium.org | ac6aa17 | 2009-12-04 12:29:05 +0000 | [diff] [blame] | 9508 | HeapObject::cast(args[0])->map()->Print(); |
| 9509 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9510 | #else |
ager@chromium.org | 9258b6b | 2008-09-11 09:11:10 +0000 | [diff] [blame] | 9511 | // ShortPrint is available in release mode. Print is not. |
| 9512 | args[0]->ShortPrint(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9513 | #endif |
| 9514 | PrintF("\n"); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 9515 | Flush(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9516 | |
| 9517 | return args[0]; // return TOS |
| 9518 | } |
| 9519 | |
| 9520 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 9521 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DebugTrace) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 9522 | SealHandleScope shs(isolate); |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 9523 | ASSERT(args.length() == 0); |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 9524 | isolate->PrintStack(stdout); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9525 | return isolate->heap()->undefined_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9526 | } |
| 9527 | |
| 9528 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 9529 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DateCurrentTime) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 9530 | SealHandleScope shs(isolate); |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 9531 | ASSERT(args.length() == 0); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9532 | |
| 9533 | // According to ECMA-262, section 15.9.1, page 117, the precision of |
| 9534 | // the number in a Date object representing a particular instant in |
| 9535 | // time is milliseconds. Therefore, we floor the result of getting |
| 9536 | // the OS time. |
| 9537 | double millis = floor(OS::TimeCurrentMillis()); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9538 | return isolate->heap()->NumberFromDouble(millis); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9539 | } |
| 9540 | |
| 9541 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 9542 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DateParseString) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9543 | HandleScope scope(isolate); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 9544 | ASSERT(args.length() == 2); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9545 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 9546 | CONVERT_ARG_HANDLE_CHECKED(String, str, 0); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 9547 | FlattenString(str); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9548 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 9549 | CONVERT_ARG_HANDLE_CHECKED(JSArray, output, 1); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 9550 | |
hpayer@chromium.org | c5d4971 | 2013-09-11 08:25:48 +0000 | [diff] [blame] | 9551 | JSObject::EnsureCanContainHeapObjectElements(output); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 9552 | RUNTIME_ASSERT(output->HasFastObjectElements()); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 9553 | |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 9554 | DisallowHeapAllocation no_gc; |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 9555 | |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 9556 | FixedArray* output_array = FixedArray::cast(output->elements()); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 9557 | RUNTIME_ASSERT(output_array->length() >= DateParser::OUTPUT_SIZE); |
| 9558 | bool result; |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 9559 | String::FlatContent str_content = str->GetFlatContent(); |
| 9560 | if (str_content.IsAscii()) { |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 9561 | result = DateParser::Parse(str_content.ToOneByteVector(), |
ager@chromium.org | a9aa5fa | 2011-04-13 08:46:07 +0000 | [diff] [blame] | 9562 | output_array, |
| 9563 | isolate->unicode_cache()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9564 | } else { |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 9565 | ASSERT(str_content.IsTwoByte()); |
| 9566 | result = DateParser::Parse(str_content.ToUC16Vector(), |
ager@chromium.org | a9aa5fa | 2011-04-13 08:46:07 +0000 | [diff] [blame] | 9567 | output_array, |
| 9568 | isolate->unicode_cache()); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 9569 | } |
| 9570 | |
| 9571 | if (result) { |
| 9572 | return *output; |
| 9573 | } else { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9574 | return isolate->heap()->null_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9575 | } |
| 9576 | } |
| 9577 | |
| 9578 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 9579 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DateLocalTimezone) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 9580 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9581 | ASSERT(args.length() == 1); |
| 9582 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 9583 | CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
svenpanne@chromium.org | 4efbdb1 | 2012-03-12 08:18:42 +0000 | [diff] [blame] | 9584 | int64_t time = isolate->date_cache()->EquivalentTime(static_cast<int64_t>(x)); |
| 9585 | const char* zone = OS::LocalTimezone(static_cast<double>(time)); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9586 | return isolate->heap()->AllocateStringFromUtf8(CStrVector(zone)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9587 | } |
| 9588 | |
| 9589 | |
svenpanne@chromium.org | 4efbdb1 | 2012-03-12 08:18:42 +0000 | [diff] [blame] | 9590 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DateToUTC) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 9591 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9592 | ASSERT(args.length() == 1); |
| 9593 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 9594 | CONVERT_DOUBLE_ARG_CHECKED(x, 0); |
svenpanne@chromium.org | 4efbdb1 | 2012-03-12 08:18:42 +0000 | [diff] [blame] | 9595 | int64_t time = isolate->date_cache()->ToUTC(static_cast<int64_t>(x)); |
| 9596 | |
| 9597 | return isolate->heap()->NumberFromDouble(static_cast<double>(time)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9598 | } |
| 9599 | |
| 9600 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 9601 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GlobalReceiver) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 9602 | SealHandleScope shs(isolate); |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 9603 | ASSERT(args.length() == 1); |
| 9604 | Object* global = args[0]; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9605 | if (!global->IsJSGlobalObject()) return isolate->heap()->null_value(); |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 9606 | return JSGlobalObject::cast(global)->global_receiver(); |
| 9607 | } |
| 9608 | |
| 9609 | |
jkummerow@chromium.org | 113035e | 2013-12-13 15:13:40 +0000 | [diff] [blame] | 9610 | RUNTIME_FUNCTION(MaybeObject*, Runtime_IsAttachedGlobal) { |
| 9611 | SealHandleScope shs(isolate); |
| 9612 | ASSERT(args.length() == 1); |
| 9613 | Object* global = args[0]; |
| 9614 | if (!global->IsJSGlobalObject()) return isolate->heap()->false_value(); |
| 9615 | return isolate->heap()->ToBoolean( |
| 9616 | !JSGlobalObject::cast(global)->IsDetached()); |
| 9617 | } |
| 9618 | |
| 9619 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 9620 | RUNTIME_FUNCTION(MaybeObject*, Runtime_ParseJson) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9621 | HandleScope scope(isolate); |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 9622 | ASSERT_EQ(1, args.length()); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 9623 | CONVERT_ARG_HANDLE_CHECKED(String, source, 0); |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 9624 | |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 9625 | source = Handle<String>(FlattenGetString(source)); |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 9626 | // Optimized fast case where we only have ASCII characters. |
jkummerow@chromium.org | e297f59 | 2011-06-08 10:05:15 +0000 | [diff] [blame] | 9627 | Handle<Object> result; |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 9628 | if (source->IsSeqOneByteString()) { |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 9629 | result = JsonParser<true>::Parse(source); |
jkummerow@chromium.org | e297f59 | 2011-06-08 10:05:15 +0000 | [diff] [blame] | 9630 | } else { |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 9631 | result = JsonParser<false>::Parse(source); |
jkummerow@chromium.org | e297f59 | 2011-06-08 10:05:15 +0000 | [diff] [blame] | 9632 | } |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 9633 | if (result.is_null()) { |
| 9634 | // Syntax error or stack overflow in scanner. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9635 | ASSERT(isolate->has_pending_exception()); |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 9636 | return Failure::Exception(); |
| 9637 | } |
| 9638 | return *result; |
| 9639 | } |
| 9640 | |
| 9641 | |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 9642 | bool CodeGenerationFromStringsAllowed(Isolate* isolate, |
| 9643 | Handle<Context> context) { |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 9644 | ASSERT(context->allow_code_gen_from_strings()->IsFalse()); |
| 9645 | // Check with callback if set. |
| 9646 | AllowCodeGenerationFromStringsCallback callback = |
| 9647 | isolate->allow_code_gen_callback(); |
| 9648 | if (callback == NULL) { |
| 9649 | // No callback set and code generation disallowed. |
| 9650 | return false; |
| 9651 | } else { |
| 9652 | // Callback set. Let it decide if code generation is allowed. |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 9653 | VMState<EXTERNAL> state(isolate); |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 9654 | return callback(v8::Utils::ToLocal(context)); |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 9655 | } |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 9656 | } |
| 9657 | |
| 9658 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 9659 | RUNTIME_FUNCTION(MaybeObject*, Runtime_CompileString) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9660 | HandleScope scope(isolate); |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 9661 | ASSERT_EQ(2, args.length()); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 9662 | CONVERT_ARG_HANDLE_CHECKED(String, source, 0); |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 9663 | CONVERT_BOOLEAN_ARG_CHECKED(function_literal_only, 1); |
ager@chromium.org | 9258b6b | 2008-09-11 09:11:10 +0000 | [diff] [blame] | 9664 | |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 9665 | // Extract native context. |
| 9666 | Handle<Context> context(isolate->context()->native_context()); |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 9667 | |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 9668 | // Check if native context allows code generation from |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 9669 | // strings. Throw an exception if it doesn't. |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 9670 | if (context->allow_code_gen_from_strings()->IsFalse() && |
| 9671 | !CodeGenerationFromStringsAllowed(isolate, context)) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 9672 | Handle<Object> error_message = |
| 9673 | context->ErrorMessageForCodeGenerationFromStrings(); |
| 9674 | return isolate->Throw(*isolate->factory()->NewEvalError( |
| 9675 | "code_gen_from_strings", HandleVector<Object>(&error_message, 1))); |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 9676 | } |
| 9677 | |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 9678 | // Compile source string in the native context. |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 9679 | ParseRestriction restriction = function_literal_only |
| 9680 | ? ONLY_SINGLE_FUNCTION_LITERAL : NO_PARSE_RESTRICTION; |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 9681 | Handle<JSFunction> fun = Compiler::GetFunctionFromEval( |
| 9682 | source, context, CLASSIC_MODE, restriction, RelocInfo::kNoPosition); |
| 9683 | RETURN_IF_EMPTY_HANDLE(isolate, fun); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 9684 | return *fun; |
| 9685 | } |
| 9686 | |
| 9687 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9688 | static ObjectPair CompileGlobalEval(Isolate* isolate, |
| 9689 | Handle<String> source, |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 9690 | Handle<Object> receiver, |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 9691 | LanguageMode language_mode, |
jkummerow@chromium.org | 04e4f1e | 2011-11-14 13:36:17 +0000 | [diff] [blame] | 9692 | int scope_position) { |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 9693 | Handle<Context> context = Handle<Context>(isolate->context()); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 9694 | Handle<Context> native_context = Handle<Context>(context->native_context()); |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 9695 | |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 9696 | // Check if native context allows code generation from |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 9697 | // strings. Throw an exception if it doesn't. |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 9698 | if (native_context->allow_code_gen_from_strings()->IsFalse() && |
| 9699 | !CodeGenerationFromStringsAllowed(isolate, native_context)) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 9700 | Handle<Object> error_message = |
jkummerow@chromium.org | c195667 | 2012-10-11 15:57:38 +0000 | [diff] [blame] | 9701 | native_context->ErrorMessageForCodeGenerationFromStrings(); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 9702 | isolate->Throw(*isolate->factory()->NewEvalError( |
| 9703 | "code_gen_from_strings", HandleVector<Object>(&error_message, 1))); |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 9704 | return MakePair(Failure::Exception(), NULL); |
| 9705 | } |
| 9706 | |
lrn@chromium.org | 1af7e1b | 2010-06-07 11:12:01 +0000 | [diff] [blame] | 9707 | // Deal with a normal eval call with a string argument. Compile it |
| 9708 | // and return the compiled function bound in the local context. |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 9709 | static const ParseRestriction restriction = NO_PARSE_RESTRICTION; |
| 9710 | Handle<JSFunction> compiled = Compiler::GetFunctionFromEval( |
| 9711 | source, context, language_mode, restriction, scope_position); |
| 9712 | RETURN_IF_EMPTY_HANDLE_VALUE(isolate, compiled, |
mstarzinger@chromium.org | e0e1b0d | 2013-07-08 08:38:06 +0000 | [diff] [blame] | 9713 | MakePair(Failure::Exception(), NULL)); |
lrn@chromium.org | 1af7e1b | 2010-06-07 11:12:01 +0000 | [diff] [blame] | 9714 | return MakePair(*compiled, *receiver); |
| 9715 | } |
| 9716 | |
| 9717 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 9718 | RUNTIME_FUNCTION(ObjectPair, Runtime_ResolvePossiblyDirectEval) { |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 9719 | HandleScope scope(isolate); |
jkummerow@chromium.org | 04e4f1e | 2011-11-14 13:36:17 +0000 | [diff] [blame] | 9720 | ASSERT(args.length() == 5); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 9721 | |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 9722 | Handle<Object> callee = args.at<Object>(0); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 9723 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 9724 | // If "eval" didn't refer to the original GlobalEval, it's not a |
| 9725 | // direct call to eval. |
| 9726 | // (And even if it is, but the first argument isn't a string, just let |
| 9727 | // execution default to an indirect call to eval, which will also return |
| 9728 | // the first argument without doing anything). |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 9729 | if (*callee != isolate->native_context()->global_eval_fun() || |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 9730 | !args[1]->IsString()) { |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 9731 | return MakePair(*callee, isolate->heap()->the_hole_value()); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 9732 | } |
| 9733 | |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 9734 | CONVERT_LANGUAGE_MODE_ARG(language_mode, 3); |
jkummerow@chromium.org | 04e4f1e | 2011-11-14 13:36:17 +0000 | [diff] [blame] | 9735 | ASSERT(args[4]->IsSmi()); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9736 | return CompileGlobalEval(isolate, |
| 9737 | args.at<String>(1), |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 9738 | args.at<Object>(2), |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 9739 | language_mode, |
jkummerow@chromium.org | 04e4f1e | 2011-11-14 13:36:17 +0000 | [diff] [blame] | 9740 | args.smi_at(4)); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 9741 | } |
| 9742 | |
| 9743 | |
machenbach@chromium.org | 935a779 | 2013-11-12 09:05:18 +0000 | [diff] [blame] | 9744 | // Allocate a block of memory in the given space (filled with a filler). |
| 9745 | // Used as a fall-back for generated code when the space is full. |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 9746 | static MaybeObject* Allocate(Isolate* isolate, |
| 9747 | int size, |
machenbach@chromium.org | ea46888 | 2013-11-18 08:53:19 +0000 | [diff] [blame] | 9748 | bool double_align, |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 9749 | AllocationSpace space) { |
machenbach@chromium.org | 935a779 | 2013-11-12 09:05:18 +0000 | [diff] [blame] | 9750 | Heap* heap = isolate->heap(); |
lrn@chromium.org | c4e51ac | 2010-08-09 09:47:21 +0000 | [diff] [blame] | 9751 | RUNTIME_ASSERT(IsAligned(size, kPointerSize)); |
| 9752 | RUNTIME_ASSERT(size > 0); |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 9753 | RUNTIME_ASSERT(size <= heap->MaxRegularSpaceAllocationSize()); |
machenbach@chromium.org | 935a779 | 2013-11-12 09:05:18 +0000 | [diff] [blame] | 9754 | HeapObject* allocation; |
| 9755 | { MaybeObject* maybe_allocation = heap->AllocateRaw(size, space, space); |
| 9756 | if (!maybe_allocation->To(&allocation)) return maybe_allocation; |
lrn@chromium.org | c4e51ac | 2010-08-09 09:47:21 +0000 | [diff] [blame] | 9757 | } |
machenbach@chromium.org | 935a779 | 2013-11-12 09:05:18 +0000 | [diff] [blame] | 9758 | #ifdef DEBUG |
| 9759 | MemoryChunk* chunk = MemoryChunk::FromAddress(allocation->address()); |
| 9760 | ASSERT(chunk->owner()->identity() == space); |
| 9761 | #endif |
| 9762 | heap->CreateFillerObjectAt(allocation->address(), size); |
| 9763 | return allocation; |
lrn@chromium.org | c4e51ac | 2010-08-09 09:47:21 +0000 | [diff] [blame] | 9764 | } |
| 9765 | |
| 9766 | |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 9767 | RUNTIME_FUNCTION(MaybeObject*, Runtime_AllocateInNewSpace) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 9768 | SealHandleScope shs(isolate); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 9769 | ASSERT(args.length() == 1); |
machenbach@chromium.org | ea46888 | 2013-11-18 08:53:19 +0000 | [diff] [blame] | 9770 | CONVERT_SMI_ARG_CHECKED(size, 0); |
| 9771 | return Allocate(isolate, size, false, NEW_SPACE); |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 9772 | } |
| 9773 | |
| 9774 | |
machenbach@chromium.org | ea46888 | 2013-11-18 08:53:19 +0000 | [diff] [blame] | 9775 | RUNTIME_FUNCTION(MaybeObject*, Runtime_AllocateInTargetSpace) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 9776 | SealHandleScope shs(isolate); |
machenbach@chromium.org | ea46888 | 2013-11-18 08:53:19 +0000 | [diff] [blame] | 9777 | ASSERT(args.length() == 2); |
| 9778 | CONVERT_SMI_ARG_CHECKED(size, 0); |
| 9779 | CONVERT_SMI_ARG_CHECKED(flags, 1); |
| 9780 | bool double_align = AllocateDoubleAlignFlag::decode(flags); |
| 9781 | AllocationSpace space = AllocateTargetSpace::decode(flags); |
| 9782 | return Allocate(isolate, size, double_align, space); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 9783 | } |
| 9784 | |
| 9785 | |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 9786 | // Push an object unto an array of objects if it is not already in the |
ager@chromium.org | 9258b6b | 2008-09-11 09:11:10 +0000 | [diff] [blame] | 9787 | // array. Returns true if the element was pushed on the stack and |
| 9788 | // false otherwise. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 9789 | RUNTIME_FUNCTION(MaybeObject*, Runtime_PushIfAbsent) { |
machenbach@chromium.org | b5be0a9 | 2013-11-15 10:32:41 +0000 | [diff] [blame] | 9790 | HandleScope scope(isolate); |
ager@chromium.org | 9258b6b | 2008-09-11 09:11:10 +0000 | [diff] [blame] | 9791 | ASSERT(args.length() == 2); |
machenbach@chromium.org | b5be0a9 | 2013-11-15 10:32:41 +0000 | [diff] [blame] | 9792 | CONVERT_ARG_HANDLE_CHECKED(JSArray, array, 0); |
| 9793 | CONVERT_ARG_HANDLE_CHECKED(JSReceiver, element, 1); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 9794 | RUNTIME_ASSERT(array->HasFastSmiOrObjectElements()); |
ager@chromium.org | 9258b6b | 2008-09-11 09:11:10 +0000 | [diff] [blame] | 9795 | int length = Smi::cast(array->length())->value(); |
| 9796 | FixedArray* elements = FixedArray::cast(array->elements()); |
| 9797 | for (int i = 0; i < length; i++) { |
machenbach@chromium.org | b5be0a9 | 2013-11-15 10:32:41 +0000 | [diff] [blame] | 9798 | if (elements->get(i) == *element) return isolate->heap()->false_value(); |
ager@chromium.org | 9258b6b | 2008-09-11 09:11:10 +0000 | [diff] [blame] | 9799 | } |
machenbach@chromium.org | b5be0a9 | 2013-11-15 10:32:41 +0000 | [diff] [blame] | 9800 | |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 9801 | // Strict not needed. Used for cycle detection in Array join implementation. |
machenbach@chromium.org | b5be0a9 | 2013-11-15 10:32:41 +0000 | [diff] [blame] | 9802 | RETURN_IF_EMPTY_HANDLE(isolate, JSObject::SetFastElement(array, length, |
| 9803 | element, |
| 9804 | kNonStrictMode, |
| 9805 | true)); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9806 | return isolate->heap()->true_value(); |
ager@chromium.org | 9258b6b | 2008-09-11 09:11:10 +0000 | [diff] [blame] | 9807 | } |
| 9808 | |
| 9809 | |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 9810 | /** |
| 9811 | * A simple visitor visits every element of Array's. |
| 9812 | * The backend storage can be a fixed array for fast elements case, |
| 9813 | * or a dictionary for sparse array. Since Dictionary is a subtype |
| 9814 | * of FixedArray, the class can be used by both fast and slow cases. |
| 9815 | * The second parameter of the constructor, fast_elements, specifies |
| 9816 | * whether the storage is a FixedArray or Dictionary. |
| 9817 | * |
| 9818 | * An index limit is used to deal with the situation that a result array |
| 9819 | * length overflows 32-bit non-negative integer. |
| 9820 | */ |
| 9821 | class ArrayConcatVisitor { |
| 9822 | public: |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9823 | ArrayConcatVisitor(Isolate* isolate, |
| 9824 | Handle<FixedArray> storage, |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 9825 | bool fast_elements) : |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9826 | isolate_(isolate), |
| 9827 | storage_(Handle<FixedArray>::cast( |
| 9828 | isolate->global_handles()->Create(*storage))), |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 9829 | index_offset_(0u), |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 9830 | fast_elements_(fast_elements), |
| 9831 | exceeds_array_limit_(false) { } |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 9832 | |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 9833 | ~ArrayConcatVisitor() { |
| 9834 | clear_storage(); |
| 9835 | } |
| 9836 | |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 9837 | void visit(uint32_t i, Handle<Object> elm) { |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 9838 | if (i > JSObject::kMaxElementCount - index_offset_) { |
| 9839 | exceeds_array_limit_ = true; |
| 9840 | return; |
| 9841 | } |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 9842 | uint32_t index = index_offset_ + i; |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 9843 | |
| 9844 | if (fast_elements_) { |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 9845 | if (index < static_cast<uint32_t>(storage_->length())) { |
| 9846 | storage_->set(index, *elm); |
| 9847 | return; |
| 9848 | } |
| 9849 | // Our initial estimate of length was foiled, possibly by |
| 9850 | // getters on the arrays increasing the length of later arrays |
| 9851 | // during iteration. |
| 9852 | // This shouldn't happen in anything but pathological cases. |
| 9853 | SetDictionaryMode(index); |
| 9854 | // Fall-through to dictionary mode. |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 9855 | } |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 9856 | ASSERT(!fast_elements_); |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 9857 | Handle<SeededNumberDictionary> dict( |
| 9858 | SeededNumberDictionary::cast(*storage_)); |
| 9859 | Handle<SeededNumberDictionary> result = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9860 | isolate_->factory()->DictionaryAtNumberPut(dict, index, elm); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 9861 | if (!result.is_identical_to(dict)) { |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 9862 | // Dictionary needed to grow. |
| 9863 | clear_storage(); |
| 9864 | set_storage(*result); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 9865 | } |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 9866 | } |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 9867 | |
| 9868 | void increase_index_offset(uint32_t delta) { |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 9869 | if (JSObject::kMaxElementCount - index_offset_ < delta) { |
| 9870 | index_offset_ = JSObject::kMaxElementCount; |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 9871 | } else { |
| 9872 | index_offset_ += delta; |
| 9873 | } |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 9874 | } |
| 9875 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 9876 | bool exceeds_array_limit() { |
| 9877 | return exceeds_array_limit_; |
| 9878 | } |
| 9879 | |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 9880 | Handle<JSArray> ToArray() { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9881 | Handle<JSArray> array = isolate_->factory()->NewJSArray(0); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 9882 | Handle<Object> length = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9883 | isolate_->factory()->NewNumber(static_cast<double>(index_offset_)); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 9884 | Handle<Map> map; |
| 9885 | if (fast_elements_) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 9886 | map = isolate_->factory()->GetElementsTransitionMap(array, |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 9887 | FAST_HOLEY_ELEMENTS); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 9888 | } else { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 9889 | map = isolate_->factory()->GetElementsTransitionMap(array, |
| 9890 | DICTIONARY_ELEMENTS); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 9891 | } |
| 9892 | array->set_map(*map); |
| 9893 | array->set_length(*length); |
| 9894 | array->set_elements(*storage_); |
| 9895 | return array; |
| 9896 | } |
kasperl@chromium.org | edf0cd1 | 2010-01-05 13:29:12 +0000 | [diff] [blame] | 9897 | |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 9898 | private: |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 9899 | // Convert storage to dictionary mode. |
| 9900 | void SetDictionaryMode(uint32_t index) { |
| 9901 | ASSERT(fast_elements_); |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 9902 | Handle<FixedArray> current_storage(*storage_); |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 9903 | Handle<SeededNumberDictionary> slow_storage( |
| 9904 | isolate_->factory()->NewSeededNumberDictionary( |
| 9905 | current_storage->length())); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 9906 | uint32_t current_length = static_cast<uint32_t>(current_storage->length()); |
| 9907 | for (uint32_t i = 0; i < current_length; i++) { |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 9908 | HandleScope loop_scope(isolate_); |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 9909 | Handle<Object> element(current_storage->get(i), isolate_); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 9910 | if (!element->IsTheHole()) { |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 9911 | Handle<SeededNumberDictionary> new_storage = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9912 | isolate_->factory()->DictionaryAtNumberPut(slow_storage, i, element); |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 9913 | if (!new_storage.is_identical_to(slow_storage)) { |
| 9914 | slow_storage = loop_scope.CloseAndEscape(new_storage); |
| 9915 | } |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 9916 | } |
| 9917 | } |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 9918 | clear_storage(); |
| 9919 | set_storage(*slow_storage); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 9920 | fast_elements_ = false; |
| 9921 | } |
| 9922 | |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 9923 | inline void clear_storage() { |
hpayer@chromium.org | 4f99be9 | 2013-12-18 16:23:55 +0000 | [diff] [blame] | 9924 | GlobalHandles::Destroy(Handle<Object>::cast(storage_).location()); |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 9925 | } |
| 9926 | |
| 9927 | inline void set_storage(FixedArray* storage) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9928 | storage_ = Handle<FixedArray>::cast( |
| 9929 | isolate_->global_handles()->Create(storage)); |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 9930 | } |
| 9931 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 9932 | Isolate* isolate_; |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 9933 | Handle<FixedArray> storage_; // Always a global handle. |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 9934 | // Index after last seen index. Always less than or equal to |
| 9935 | // JSObject::kMaxElementCount. |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 9936 | uint32_t index_offset_; |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 9937 | bool fast_elements_ : 1; |
| 9938 | bool exceeds_array_limit_ : 1; |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 9939 | }; |
| 9940 | |
| 9941 | |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 9942 | static uint32_t EstimateElementCount(Handle<JSArray> array) { |
| 9943 | uint32_t length = static_cast<uint32_t>(array->length()->Number()); |
| 9944 | int element_count = 0; |
| 9945 | switch (array->GetElementsKind()) { |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 9946 | case FAST_SMI_ELEMENTS: |
| 9947 | case FAST_HOLEY_SMI_ELEMENTS: |
| 9948 | case FAST_ELEMENTS: |
| 9949 | case FAST_HOLEY_ELEMENTS: { |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 9950 | // Fast elements can't have lengths that are not representable by |
| 9951 | // a 32-bit signed integer. |
| 9952 | ASSERT(static_cast<int32_t>(FixedArray::kMaxLength) >= 0); |
| 9953 | int fast_length = static_cast<int>(length); |
| 9954 | Handle<FixedArray> elements(FixedArray::cast(array->elements())); |
| 9955 | for (int i = 0; i < fast_length; i++) { |
| 9956 | if (!elements->get(i)->IsTheHole()) element_count++; |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 9957 | } |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 9958 | break; |
| 9959 | } |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 9960 | case FAST_DOUBLE_ELEMENTS: |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 9961 | case FAST_HOLEY_DOUBLE_ELEMENTS: { |
| 9962 | // Fast elements can't have lengths that are not representable by |
| 9963 | // a 32-bit signed integer. |
| 9964 | ASSERT(static_cast<int32_t>(FixedDoubleArray::kMaxLength) >= 0); |
| 9965 | int fast_length = static_cast<int>(length); |
| 9966 | if (array->elements()->IsFixedArray()) { |
| 9967 | ASSERT(FixedArray::cast(array->elements())->length() == 0); |
| 9968 | break; |
| 9969 | } |
| 9970 | Handle<FixedDoubleArray> elements( |
| 9971 | FixedDoubleArray::cast(array->elements())); |
| 9972 | for (int i = 0; i < fast_length; i++) { |
| 9973 | if (!elements->is_the_hole(i)) element_count++; |
| 9974 | } |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 9975 | break; |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 9976 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 9977 | case DICTIONARY_ELEMENTS: { |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 9978 | Handle<SeededNumberDictionary> dictionary( |
| 9979 | SeededNumberDictionary::cast(array->elements())); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 9980 | int capacity = dictionary->Capacity(); |
| 9981 | for (int i = 0; i < capacity; i++) { |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 9982 | Handle<Object> key(dictionary->KeyAt(i), array->GetIsolate()); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 9983 | if (dictionary->IsKey(*key)) { |
| 9984 | element_count++; |
| 9985 | } |
| 9986 | } |
| 9987 | break; |
| 9988 | } |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 9989 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
| 9990 | case EXTERNAL_BYTE_ELEMENTS: |
| 9991 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
| 9992 | case EXTERNAL_SHORT_ELEMENTS: |
| 9993 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
| 9994 | case EXTERNAL_INT_ELEMENTS: |
| 9995 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
| 9996 | case EXTERNAL_FLOAT_ELEMENTS: |
| 9997 | case EXTERNAL_DOUBLE_ELEMENTS: |
| 9998 | case EXTERNAL_PIXEL_ELEMENTS: |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 9999 | // External arrays are always dense. |
| 10000 | return length; |
| 10001 | } |
| 10002 | // As an estimate, we assume that the prototype doesn't contain any |
| 10003 | // inherited elements. |
| 10004 | return element_count; |
| 10005 | } |
| 10006 | |
| 10007 | |
| 10008 | |
| 10009 | template<class ExternalArrayClass, class ElementType> |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10010 | static void IterateExternalArrayElements(Isolate* isolate, |
| 10011 | Handle<JSObject> receiver, |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10012 | bool elements_are_ints, |
| 10013 | bool elements_are_guaranteed_smis, |
| 10014 | ArrayConcatVisitor* visitor) { |
| 10015 | Handle<ExternalArrayClass> array( |
| 10016 | ExternalArrayClass::cast(receiver->elements())); |
| 10017 | uint32_t len = static_cast<uint32_t>(array->length()); |
| 10018 | |
| 10019 | ASSERT(visitor != NULL); |
| 10020 | if (elements_are_ints) { |
| 10021 | if (elements_are_guaranteed_smis) { |
| 10022 | for (uint32_t j = 0; j < len; j++) { |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 10023 | HandleScope loop_scope(isolate); |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 10024 | Handle<Smi> e(Smi::FromInt(static_cast<int>(array->get_scalar(j))), |
| 10025 | isolate); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10026 | visitor->visit(j, e); |
| 10027 | } |
| 10028 | } else { |
| 10029 | for (uint32_t j = 0; j < len; j++) { |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 10030 | HandleScope loop_scope(isolate); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 10031 | int64_t val = static_cast<int64_t>(array->get_scalar(j)); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10032 | if (Smi::IsValid(static_cast<intptr_t>(val))) { |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 10033 | Handle<Smi> e(Smi::FromInt(static_cast<int>(val)), isolate); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10034 | visitor->visit(j, e); |
| 10035 | } else { |
| 10036 | Handle<Object> e = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10037 | isolate->factory()->NewNumber(static_cast<ElementType>(val)); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10038 | visitor->visit(j, e); |
| 10039 | } |
| 10040 | } |
| 10041 | } |
| 10042 | } else { |
| 10043 | for (uint32_t j = 0; j < len; j++) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10044 | HandleScope loop_scope(isolate); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 10045 | Handle<Object> e = isolate->factory()->NewNumber(array->get_scalar(j)); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10046 | visitor->visit(j, e); |
| 10047 | } |
| 10048 | } |
| 10049 | } |
| 10050 | |
| 10051 | |
| 10052 | // Used for sorting indices in a List<uint32_t>. |
| 10053 | static int compareUInt32(const uint32_t* ap, const uint32_t* bp) { |
| 10054 | uint32_t a = *ap; |
| 10055 | uint32_t b = *bp; |
| 10056 | return (a == b) ? 0 : (a < b) ? -1 : 1; |
| 10057 | } |
| 10058 | |
| 10059 | |
| 10060 | static void CollectElementIndices(Handle<JSObject> object, |
| 10061 | uint32_t range, |
| 10062 | List<uint32_t>* indices) { |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 10063 | Isolate* isolate = object->GetIsolate(); |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 10064 | ElementsKind kind = object->GetElementsKind(); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10065 | switch (kind) { |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 10066 | case FAST_SMI_ELEMENTS: |
| 10067 | case FAST_ELEMENTS: |
| 10068 | case FAST_HOLEY_SMI_ELEMENTS: |
| 10069 | case FAST_HOLEY_ELEMENTS: { |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10070 | Handle<FixedArray> elements(FixedArray::cast(object->elements())); |
| 10071 | uint32_t length = static_cast<uint32_t>(elements->length()); |
| 10072 | if (range < length) length = range; |
| 10073 | for (uint32_t i = 0; i < length; i++) { |
| 10074 | if (!elements->get(i)->IsTheHole()) { |
| 10075 | indices->Add(i); |
| 10076 | } |
| 10077 | } |
| 10078 | break; |
| 10079 | } |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 10080 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 10081 | case FAST_DOUBLE_ELEMENTS: { |
| 10082 | // TODO(1810): Decide if it's worthwhile to implement this. |
| 10083 | UNREACHABLE(); |
| 10084 | break; |
| 10085 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 10086 | case DICTIONARY_ELEMENTS: { |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 10087 | Handle<SeededNumberDictionary> dict( |
| 10088 | SeededNumberDictionary::cast(object->elements())); |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 10089 | uint32_t capacity = dict->Capacity(); |
| 10090 | for (uint32_t j = 0; j < capacity; j++) { |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 10091 | HandleScope loop_scope(isolate); |
| 10092 | Handle<Object> k(dict->KeyAt(j), isolate); |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 10093 | if (dict->IsKey(*k)) { |
| 10094 | ASSERT(k->IsNumber()); |
| 10095 | uint32_t index = static_cast<uint32_t>(k->Number()); |
| 10096 | if (index < range) { |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10097 | indices->Add(index); |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 10098 | } |
| 10099 | } |
| 10100 | } |
| 10101 | break; |
| 10102 | } |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10103 | default: { |
| 10104 | int dense_elements_length; |
| 10105 | switch (kind) { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 10106 | case EXTERNAL_PIXEL_ELEMENTS: { |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 10107 | dense_elements_length = |
| 10108 | ExternalPixelArray::cast(object->elements())->length(); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10109 | break; |
| 10110 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 10111 | case EXTERNAL_BYTE_ELEMENTS: { |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 10112 | dense_elements_length = |
| 10113 | ExternalByteArray::cast(object->elements())->length(); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10114 | break; |
| 10115 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 10116 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: { |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 10117 | dense_elements_length = |
| 10118 | ExternalUnsignedByteArray::cast(object->elements())->length(); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10119 | break; |
| 10120 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 10121 | case EXTERNAL_SHORT_ELEMENTS: { |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 10122 | dense_elements_length = |
| 10123 | ExternalShortArray::cast(object->elements())->length(); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10124 | break; |
| 10125 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 10126 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: { |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 10127 | dense_elements_length = |
| 10128 | ExternalUnsignedShortArray::cast(object->elements())->length(); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10129 | break; |
| 10130 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 10131 | case EXTERNAL_INT_ELEMENTS: { |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 10132 | dense_elements_length = |
| 10133 | ExternalIntArray::cast(object->elements())->length(); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10134 | break; |
| 10135 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 10136 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: { |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 10137 | dense_elements_length = |
| 10138 | ExternalUnsignedIntArray::cast(object->elements())->length(); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10139 | break; |
| 10140 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 10141 | case EXTERNAL_FLOAT_ELEMENTS: { |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 10142 | dense_elements_length = |
| 10143 | ExternalFloatArray::cast(object->elements())->length(); |
| 10144 | break; |
| 10145 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 10146 | case EXTERNAL_DOUBLE_ELEMENTS: { |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 10147 | dense_elements_length = |
| 10148 | ExternalDoubleArray::cast(object->elements())->length(); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10149 | break; |
| 10150 | } |
| 10151 | default: |
| 10152 | UNREACHABLE(); |
| 10153 | dense_elements_length = 0; |
| 10154 | break; |
| 10155 | } |
| 10156 | uint32_t length = static_cast<uint32_t>(dense_elements_length); |
| 10157 | if (range <= length) { |
| 10158 | length = range; |
| 10159 | // We will add all indices, so we might as well clear it first |
| 10160 | // and avoid duplicates. |
| 10161 | indices->Clear(); |
| 10162 | } |
| 10163 | for (uint32_t i = 0; i < length; i++) { |
| 10164 | indices->Add(i); |
| 10165 | } |
| 10166 | if (length == range) return; // All indices accounted for already. |
| 10167 | break; |
| 10168 | } |
| 10169 | } |
| 10170 | |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 10171 | Handle<Object> prototype(object->GetPrototype(), isolate); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10172 | if (prototype->IsJSObject()) { |
| 10173 | // The prototype will usually have no inherited element indices, |
| 10174 | // but we have to check. |
| 10175 | CollectElementIndices(Handle<JSObject>::cast(prototype), range, indices); |
| 10176 | } |
| 10177 | } |
| 10178 | |
| 10179 | |
| 10180 | /** |
| 10181 | * A helper function that visits elements of a JSArray in numerical |
| 10182 | * order. |
| 10183 | * |
| 10184 | * The visitor argument called for each existing element in the array |
| 10185 | * with the element index and the element's value. |
| 10186 | * Afterwards it increments the base-index of the visitor by the array |
| 10187 | * length. |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 10188 | * Returns false if any access threw an exception, otherwise true. |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10189 | */ |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10190 | static bool IterateElements(Isolate* isolate, |
| 10191 | Handle<JSArray> receiver, |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10192 | ArrayConcatVisitor* visitor) { |
| 10193 | uint32_t length = static_cast<uint32_t>(receiver->length()->Number()); |
| 10194 | switch (receiver->GetElementsKind()) { |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 10195 | case FAST_SMI_ELEMENTS: |
| 10196 | case FAST_ELEMENTS: |
| 10197 | case FAST_HOLEY_SMI_ELEMENTS: |
| 10198 | case FAST_HOLEY_ELEMENTS: { |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10199 | // Run through the elements FixedArray and use HasElement and GetElement |
| 10200 | // to check the prototype for missing elements. |
| 10201 | Handle<FixedArray> elements(FixedArray::cast(receiver->elements())); |
| 10202 | int fast_length = static_cast<int>(length); |
| 10203 | ASSERT(fast_length <= elements->length()); |
| 10204 | for (int j = 0; j < fast_length; j++) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10205 | HandleScope loop_scope(isolate); |
| 10206 | Handle<Object> element_value(elements->get(j), isolate); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10207 | if (!element_value->IsTheHole()) { |
| 10208 | visitor->visit(j, element_value); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 10209 | } else if (JSReceiver::HasElement(receiver, j)) { |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10210 | // Call GetElement on receiver, not its prototype, or getters won't |
| 10211 | // have the correct receiver. |
jkummerow@chromium.org | 3d00d0a | 2013-09-04 13:57:32 +0000 | [diff] [blame] | 10212 | element_value = Object::GetElement(isolate, receiver, j); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 10213 | RETURN_IF_EMPTY_HANDLE_VALUE(isolate, element_value, false); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10214 | visitor->visit(j, element_value); |
| 10215 | } |
| 10216 | } |
| 10217 | break; |
| 10218 | } |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 10219 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 10220 | case FAST_DOUBLE_ELEMENTS: { |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 10221 | // Run through the elements FixedArray and use HasElement and GetElement |
| 10222 | // to check the prototype for missing elements. |
| 10223 | Handle<FixedDoubleArray> elements( |
| 10224 | FixedDoubleArray::cast(receiver->elements())); |
| 10225 | int fast_length = static_cast<int>(length); |
| 10226 | ASSERT(fast_length <= elements->length()); |
| 10227 | for (int j = 0; j < fast_length; j++) { |
| 10228 | HandleScope loop_scope(isolate); |
| 10229 | if (!elements->is_the_hole(j)) { |
| 10230 | double double_value = elements->get_scalar(j); |
| 10231 | Handle<Object> element_value = |
| 10232 | isolate->factory()->NewNumber(double_value); |
| 10233 | visitor->visit(j, element_value); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 10234 | } else if (JSReceiver::HasElement(receiver, j)) { |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 10235 | // Call GetElement on receiver, not its prototype, or getters won't |
| 10236 | // have the correct receiver. |
jkummerow@chromium.org | 3d00d0a | 2013-09-04 13:57:32 +0000 | [diff] [blame] | 10237 | Handle<Object> element_value = |
| 10238 | Object::GetElement(isolate, receiver, j); |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 10239 | RETURN_IF_EMPTY_HANDLE_VALUE(isolate, element_value, false); |
| 10240 | visitor->visit(j, element_value); |
| 10241 | } |
| 10242 | } |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 10243 | break; |
| 10244 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 10245 | case DICTIONARY_ELEMENTS: { |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 10246 | Handle<SeededNumberDictionary> dict(receiver->element_dictionary()); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10247 | List<uint32_t> indices(dict->Capacity() / 2); |
| 10248 | // Collect all indices in the object and the prototypes less |
| 10249 | // than length. This might introduce duplicates in the indices list. |
| 10250 | CollectElementIndices(receiver, length, &indices); |
| 10251 | indices.Sort(&compareUInt32); |
| 10252 | int j = 0; |
| 10253 | int n = indices.length(); |
| 10254 | while (j < n) { |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 10255 | HandleScope loop_scope(isolate); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10256 | uint32_t index = indices[j]; |
jkummerow@chromium.org | 3d00d0a | 2013-09-04 13:57:32 +0000 | [diff] [blame] | 10257 | Handle<Object> element = Object::GetElement(isolate, receiver, index); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 10258 | RETURN_IF_EMPTY_HANDLE_VALUE(isolate, element, false); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10259 | visitor->visit(index, element); |
| 10260 | // Skip to next different index (i.e., omit duplicates). |
| 10261 | do { |
| 10262 | j++; |
| 10263 | } while (j < n && indices[j] == index); |
| 10264 | } |
| 10265 | break; |
| 10266 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 10267 | case EXTERNAL_PIXEL_ELEMENTS: { |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 10268 | Handle<ExternalPixelArray> pixels(ExternalPixelArray::cast( |
| 10269 | receiver->elements())); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10270 | for (uint32_t j = 0; j < length; j++) { |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 10271 | Handle<Smi> e(Smi::FromInt(pixels->get_scalar(j)), isolate); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10272 | visitor->visit(j, e); |
| 10273 | } |
| 10274 | break; |
| 10275 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 10276 | case EXTERNAL_BYTE_ELEMENTS: { |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10277 | IterateExternalArrayElements<ExternalByteArray, int8_t>( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10278 | isolate, receiver, true, true, visitor); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10279 | break; |
| 10280 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 10281 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: { |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10282 | IterateExternalArrayElements<ExternalUnsignedByteArray, uint8_t>( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10283 | isolate, receiver, true, true, visitor); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10284 | break; |
| 10285 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 10286 | case EXTERNAL_SHORT_ELEMENTS: { |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10287 | IterateExternalArrayElements<ExternalShortArray, int16_t>( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10288 | isolate, receiver, true, true, visitor); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10289 | break; |
| 10290 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 10291 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: { |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10292 | IterateExternalArrayElements<ExternalUnsignedShortArray, uint16_t>( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10293 | isolate, receiver, true, true, visitor); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10294 | break; |
| 10295 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 10296 | case EXTERNAL_INT_ELEMENTS: { |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10297 | IterateExternalArrayElements<ExternalIntArray, int32_t>( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10298 | isolate, receiver, true, false, visitor); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10299 | break; |
| 10300 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 10301 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: { |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10302 | IterateExternalArrayElements<ExternalUnsignedIntArray, uint32_t>( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10303 | isolate, receiver, true, false, visitor); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10304 | break; |
| 10305 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 10306 | case EXTERNAL_FLOAT_ELEMENTS: { |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10307 | IterateExternalArrayElements<ExternalFloatArray, float>( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10308 | isolate, receiver, false, false, visitor); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10309 | break; |
| 10310 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 10311 | case EXTERNAL_DOUBLE_ELEMENTS: { |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 10312 | IterateExternalArrayElements<ExternalDoubleArray, double>( |
| 10313 | isolate, receiver, false, false, visitor); |
| 10314 | break; |
| 10315 | } |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 10316 | default: |
| 10317 | UNREACHABLE(); |
| 10318 | break; |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 10319 | } |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10320 | visitor->increase_index_offset(length); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 10321 | return true; |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 10322 | } |
| 10323 | |
| 10324 | |
| 10325 | /** |
| 10326 | * Array::concat implementation. |
| 10327 | * See ECMAScript 262, 15.4.4.4. |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10328 | * TODO(581): Fix non-compliance for very large concatenations and update to |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 10329 | * following the ECMAScript 5 specification. |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 10330 | */ |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 10331 | RUNTIME_FUNCTION(MaybeObject*, Runtime_ArrayConcat) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10332 | HandleScope handle_scope(isolate); |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 10333 | ASSERT(args.length() == 1); |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 10334 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 10335 | CONVERT_ARG_HANDLE_CHECKED(JSArray, arguments, 0); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10336 | int argument_count = static_cast<int>(arguments->length()->Number()); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 10337 | RUNTIME_ASSERT(arguments->HasFastObjectElements()); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10338 | Handle<FixedArray> elements(FixedArray::cast(arguments->elements())); |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 10339 | |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10340 | // Pass 1: estimate the length and number of elements of the result. |
| 10341 | // The actual length can be larger if any of the arguments have getters |
| 10342 | // that mutate other arguments (but will otherwise be precise). |
| 10343 | // The number of elements is precise if there are no inherited elements. |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 10344 | |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 10345 | ElementsKind kind = FAST_SMI_ELEMENTS; |
| 10346 | |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10347 | uint32_t estimate_result_length = 0; |
| 10348 | uint32_t estimate_nof_elements = 0; |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 10349 | for (int i = 0; i < argument_count; i++) { |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 10350 | HandleScope loop_scope(isolate); |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 10351 | Handle<Object> obj(elements->get(i), isolate); |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 10352 | uint32_t length_estimate; |
| 10353 | uint32_t element_estimate; |
| 10354 | if (obj->IsJSArray()) { |
| 10355 | Handle<JSArray> array(Handle<JSArray>::cast(obj)); |
| 10356 | length_estimate = static_cast<uint32_t>(array->length()->Number()); |
| 10357 | if (length_estimate != 0) { |
| 10358 | ElementsKind array_kind = |
| 10359 | GetPackedElementsKind(array->map()->elements_kind()); |
| 10360 | if (IsMoreGeneralElementsKindTransition(kind, array_kind)) { |
| 10361 | kind = array_kind; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 10362 | } |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10363 | } |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 10364 | element_estimate = EstimateElementCount(array); |
| 10365 | } else { |
| 10366 | if (obj->IsHeapObject()) { |
| 10367 | if (obj->IsNumber()) { |
| 10368 | if (IsMoreGeneralElementsKindTransition(kind, FAST_DOUBLE_ELEMENTS)) { |
| 10369 | kind = FAST_DOUBLE_ELEMENTS; |
| 10370 | } |
| 10371 | } else if (IsMoreGeneralElementsKindTransition(kind, FAST_ELEMENTS)) { |
| 10372 | kind = FAST_ELEMENTS; |
| 10373 | } |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10374 | } |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 10375 | length_estimate = 1; |
| 10376 | element_estimate = 1; |
| 10377 | } |
| 10378 | // Avoid overflows by capping at kMaxElementCount. |
| 10379 | if (JSObject::kMaxElementCount - estimate_result_length < |
| 10380 | length_estimate) { |
| 10381 | estimate_result_length = JSObject::kMaxElementCount; |
| 10382 | } else { |
| 10383 | estimate_result_length += length_estimate; |
| 10384 | } |
| 10385 | if (JSObject::kMaxElementCount - estimate_nof_elements < |
| 10386 | element_estimate) { |
| 10387 | estimate_nof_elements = JSObject::kMaxElementCount; |
| 10388 | } else { |
| 10389 | estimate_nof_elements += element_estimate; |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 10390 | } |
| 10391 | } |
| 10392 | |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 10393 | // If estimated number of elements is more than half of length, a |
| 10394 | // fixed array (fast case) is more time and space-efficient than a |
| 10395 | // dictionary. |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10396 | bool fast_case = (estimate_nof_elements * 2) >= estimate_result_length; |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 10397 | |
| 10398 | Handle<FixedArray> storage; |
| 10399 | if (fast_case) { |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 10400 | if (kind == FAST_DOUBLE_ELEMENTS) { |
| 10401 | Handle<FixedDoubleArray> double_storage = |
| 10402 | isolate->factory()->NewFixedDoubleArray(estimate_result_length); |
| 10403 | int j = 0; |
| 10404 | bool failure = false; |
| 10405 | for (int i = 0; i < argument_count; i++) { |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 10406 | Handle<Object> obj(elements->get(i), isolate); |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 10407 | if (obj->IsSmi()) { |
| 10408 | double_storage->set(j, Smi::cast(*obj)->value()); |
| 10409 | j++; |
| 10410 | } else if (obj->IsNumber()) { |
| 10411 | double_storage->set(j, obj->Number()); |
| 10412 | j++; |
| 10413 | } else { |
| 10414 | JSArray* array = JSArray::cast(*obj); |
| 10415 | uint32_t length = static_cast<uint32_t>(array->length()->Number()); |
| 10416 | switch (array->map()->elements_kind()) { |
| 10417 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
| 10418 | case FAST_DOUBLE_ELEMENTS: { |
| 10419 | // Empty fixed array indicates that there are no elements. |
| 10420 | if (array->elements()->IsFixedArray()) break; |
| 10421 | FixedDoubleArray* elements = |
| 10422 | FixedDoubleArray::cast(array->elements()); |
| 10423 | for (uint32_t i = 0; i < length; i++) { |
| 10424 | if (elements->is_the_hole(i)) { |
| 10425 | failure = true; |
| 10426 | break; |
| 10427 | } |
| 10428 | double double_value = elements->get_scalar(i); |
| 10429 | double_storage->set(j, double_value); |
| 10430 | j++; |
| 10431 | } |
| 10432 | break; |
| 10433 | } |
| 10434 | case FAST_HOLEY_SMI_ELEMENTS: |
| 10435 | case FAST_SMI_ELEMENTS: { |
| 10436 | FixedArray* elements( |
| 10437 | FixedArray::cast(array->elements())); |
| 10438 | for (uint32_t i = 0; i < length; i++) { |
| 10439 | Object* element = elements->get(i); |
| 10440 | if (element->IsTheHole()) { |
| 10441 | failure = true; |
| 10442 | break; |
| 10443 | } |
| 10444 | int32_t int_value = Smi::cast(element)->value(); |
| 10445 | double_storage->set(j, int_value); |
| 10446 | j++; |
| 10447 | } |
| 10448 | break; |
| 10449 | } |
| 10450 | case FAST_HOLEY_ELEMENTS: |
| 10451 | ASSERT_EQ(0, length); |
| 10452 | break; |
| 10453 | default: |
| 10454 | UNREACHABLE(); |
| 10455 | } |
| 10456 | } |
| 10457 | if (failure) break; |
| 10458 | } |
| 10459 | Handle<JSArray> array = isolate->factory()->NewJSArray(0); |
| 10460 | Smi* length = Smi::FromInt(j); |
| 10461 | Handle<Map> map; |
| 10462 | map = isolate->factory()->GetElementsTransitionMap(array, kind); |
| 10463 | array->set_map(*map); |
| 10464 | array->set_length(length); |
| 10465 | array->set_elements(*double_storage); |
| 10466 | return *array; |
| 10467 | } |
| 10468 | // The backing storage array must have non-existing elements to preserve |
| 10469 | // holes across concat operations. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10470 | storage = isolate->factory()->NewFixedArrayWithHoles( |
| 10471 | estimate_result_length); |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 10472 | } else { |
| 10473 | // TODO(126): move 25% pre-allocation logic into Dictionary::Allocate |
| 10474 | uint32_t at_least_space_for = estimate_nof_elements + |
| 10475 | (estimate_nof_elements >> 2); |
| 10476 | storage = Handle<FixedArray>::cast( |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 10477 | isolate->factory()->NewSeededNumberDictionary(at_least_space_for)); |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 10478 | } |
| 10479 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10480 | ArrayConcatVisitor visitor(isolate, storage, fast_case); |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 10481 | |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10482 | for (int i = 0; i < argument_count; i++) { |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 10483 | Handle<Object> obj(elements->get(i), isolate); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10484 | if (obj->IsJSArray()) { |
| 10485 | Handle<JSArray> array = Handle<JSArray>::cast(obj); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10486 | if (!IterateElements(isolate, array, &visitor)) { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 10487 | return Failure::Exception(); |
| 10488 | } |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10489 | } else { |
| 10490 | visitor.visit(0, obj); |
| 10491 | visitor.increase_index_offset(1); |
| 10492 | } |
| 10493 | } |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 10494 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 10495 | if (visitor.exceeds_array_limit()) { |
| 10496 | return isolate->Throw( |
| 10497 | *isolate->factory()->NewRangeError("invalid_array_length", |
| 10498 | HandleVector<Object>(NULL, 0))); |
| 10499 | } |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 10500 | return *visitor.ToArray(); |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 10501 | } |
| 10502 | |
| 10503 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10504 | // This will not allocate (flatten the string), but it may run |
| 10505 | // very slowly for very deeply nested ConsStrings. For debugging use only. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 10506 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GlobalPrint) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 10507 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10508 | ASSERT(args.length() == 1); |
| 10509 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 10510 | CONVERT_ARG_CHECKED(String, string, 0); |
yangguo@chromium.org | 4cd70b4 | 2013-01-04 08:57:54 +0000 | [diff] [blame] | 10511 | ConsStringIteratorOp op; |
| 10512 | StringCharacterStream stream(string, &op); |
| 10513 | while (stream.HasMore()) { |
| 10514 | uint16_t character = stream.GetNext(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10515 | PrintF("%c", character); |
| 10516 | } |
| 10517 | return string; |
| 10518 | } |
| 10519 | |
mstarzinger@chromium.org | e0e1b0d | 2013-07-08 08:38:06 +0000 | [diff] [blame] | 10520 | |
ager@chromium.org | 5ec4892 | 2009-05-05 07:25:34 +0000 | [diff] [blame] | 10521 | // Moves all own elements of an object, that are below a limit, to positions |
| 10522 | // starting at zero. All undefined values are placed after non-undefined values, |
| 10523 | // and are followed by non-existing element. Does not change the length |
| 10524 | // property. |
| 10525 | // Returns the number of non-undefined elements collected. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 10526 | RUNTIME_FUNCTION(MaybeObject*, Runtime_RemoveArrayHoles) { |
jkummerow@chromium.org | ef33a54 | 2013-10-28 18:03:37 +0000 | [diff] [blame] | 10527 | HandleScope scope(isolate); |
ager@chromium.org | 5ec4892 | 2009-05-05 07:25:34 +0000 | [diff] [blame] | 10528 | ASSERT(args.length() == 2); |
jkummerow@chromium.org | ef33a54 | 2013-10-28 18:03:37 +0000 | [diff] [blame] | 10529 | CONVERT_ARG_HANDLE_CHECKED(JSObject, object, 0); |
ager@chromium.org | 5ec4892 | 2009-05-05 07:25:34 +0000 | [diff] [blame] | 10530 | CONVERT_NUMBER_CHECKED(uint32_t, limit, Uint32, args[1]); |
jkummerow@chromium.org | ef33a54 | 2013-10-28 18:03:37 +0000 | [diff] [blame] | 10531 | return *JSObject::PrepareElementsForSort(object, limit); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10532 | } |
| 10533 | |
| 10534 | |
| 10535 | // Move contents of argument 0 (an array) to argument 1 (an array) |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 10536 | RUNTIME_FUNCTION(MaybeObject*, Runtime_MoveArrayContents) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 10537 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10538 | ASSERT(args.length() == 2); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 10539 | CONVERT_ARG_CHECKED(JSArray, from, 0); |
| 10540 | CONVERT_ARG_CHECKED(JSArray, to, 1); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 10541 | from->ValidateElements(); |
| 10542 | to->ValidateElements(); |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 10543 | FixedArrayBase* new_elements = from->elements(); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 10544 | ElementsKind from_kind = from->GetElementsKind(); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 10545 | MaybeObject* maybe_new_map; |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 10546 | maybe_new_map = to->GetElementsTransitionMap(isolate, from_kind); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 10547 | Object* new_map; |
| 10548 | if (!maybe_new_map->ToObject(&new_map)) return maybe_new_map; |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 10549 | to->set_map_and_elements(Map::cast(new_map), new_elements); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10550 | to->set_length(from->length()); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 10551 | Object* obj; |
| 10552 | { MaybeObject* maybe_obj = from->ResetElements(); |
| 10553 | if (!maybe_obj->ToObject(&obj)) return maybe_obj; |
| 10554 | } |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 10555 | from->set_length(Smi::FromInt(0)); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 10556 | to->ValidateElements(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10557 | return to; |
| 10558 | } |
| 10559 | |
| 10560 | |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 10561 | // How many elements does this object/array have? |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 10562 | RUNTIME_FUNCTION(MaybeObject*, Runtime_EstimateNumberOfElements) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 10563 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10564 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 10565 | CONVERT_ARG_CHECKED(JSObject, object, 0); |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 10566 | HeapObject* elements = object->elements(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10567 | if (elements->IsDictionary()) { |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 10568 | int result = SeededNumberDictionary::cast(elements)->NumberOfElements(); |
| 10569 | return Smi::FromInt(result); |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 10570 | } else if (object->IsJSArray()) { |
| 10571 | return JSArray::cast(object)->length(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10572 | } else { |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 10573 | return Smi::FromInt(FixedArray::cast(elements)->length()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10574 | } |
| 10575 | } |
| 10576 | |
| 10577 | |
| 10578 | // Returns an array that tells you where in the [0, length) interval an array |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 10579 | // might have elements. Can either return an array of keys (positive integers |
| 10580 | // or undefined) or a number representing the positive length of an interval |
| 10581 | // starting at index 0. |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 10582 | // Intervals can span over some keys that are not in the object. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 10583 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetArrayKeys) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10584 | HandleScope scope(isolate); |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 10585 | ASSERT(args.length() == 2); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 10586 | CONVERT_ARG_HANDLE_CHECKED(JSObject, array, 0); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10587 | CONVERT_NUMBER_CHECKED(uint32_t, length, Uint32, args[1]); |
mads.s.ager@gmail.com | 9a4089a | 2008-09-01 08:55:01 +0000 | [diff] [blame] | 10588 | if (array->elements()->IsDictionary()) { |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 10589 | Handle<FixedArray> keys = isolate->factory()->empty_fixed_array(); |
| 10590 | for (Handle<Object> p = array; |
| 10591 | !p->IsNull(); |
| 10592 | p = Handle<Object>(p->GetPrototype(isolate), isolate)) { |
| 10593 | if (p->IsJSProxy() || JSObject::cast(*p)->HasIndexedInterceptor()) { |
| 10594 | // Bail out if we find a proxy or interceptor, likely not worth |
| 10595 | // collecting keys in that case. |
| 10596 | return *isolate->factory()->NewNumberFromUint(length); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10597 | } |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 10598 | Handle<JSObject> current = Handle<JSObject>::cast(p); |
| 10599 | Handle<FixedArray> current_keys = |
| 10600 | isolate->factory()->NewFixedArray( |
| 10601 | current->NumberOfLocalElements(NONE)); |
| 10602 | current->GetLocalElementKeys(*current_keys, NONE); |
| 10603 | keys = UnionOfKeys(keys, current_keys); |
| 10604 | } |
| 10605 | // Erase any keys >= length. |
| 10606 | // TODO(adamk): Remove this step when the contract of %GetArrayKeys |
| 10607 | // is changed to let this happen on the JS side. |
| 10608 | for (int i = 0; i < keys->length(); i++) { |
| 10609 | if (NumberToUint32(keys->get(i)) >= length) keys->set_undefined(i); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10610 | } |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10611 | return *isolate->factory()->NewJSArrayWithElements(keys); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10612 | } else { |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 10613 | ASSERT(array->HasFastSmiOrObjectElements() || |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 10614 | array->HasFastDoubleElements()); |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 10615 | uint32_t actual_length = static_cast<uint32_t>(array->elements()->length()); |
| 10616 | return *isolate->factory()->NewNumberFromUint(Min(actual_length, length)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10617 | } |
| 10618 | } |
| 10619 | |
| 10620 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 10621 | RUNTIME_FUNCTION(MaybeObject*, Runtime_LookupAccessor) { |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 10622 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10623 | ASSERT(args.length() == 3); |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 10624 | CONVERT_ARG_HANDLE_CHECKED(JSReceiver, receiver, 0); |
| 10625 | CONVERT_ARG_HANDLE_CHECKED(Name, name, 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 10626 | CONVERT_SMI_ARG_CHECKED(flag, 2); |
ulan@chromium.org | 9a21ec4 | 2012-03-06 08:42:24 +0000 | [diff] [blame] | 10627 | AccessorComponent component = flag == 0 ? ACCESSOR_GETTER : ACCESSOR_SETTER; |
rossberg@chromium.org | 657d53b | 2012-07-12 11:06:03 +0000 | [diff] [blame] | 10628 | if (!receiver->IsJSObject()) return isolate->heap()->undefined_value(); |
jkummerow@chromium.org | fb7a7c4 | 2013-10-02 11:41:02 +0000 | [diff] [blame] | 10629 | Handle<Object> result = |
| 10630 | JSObject::GetAccessor(Handle<JSObject>::cast(receiver), name, component); |
| 10631 | RETURN_IF_EMPTY_HANDLE(isolate, result); |
| 10632 | return *result; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10633 | } |
| 10634 | |
| 10635 | |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 10636 | #ifdef ENABLE_DEBUGGER_SUPPORT |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 10637 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DebugBreak) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 10638 | SealHandleScope shs(isolate); |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 10639 | ASSERT(args.length() == 0); |
mstarzinger@chromium.org | e900018 | 2013-09-03 11:25:39 +0000 | [diff] [blame] | 10640 | return Execution::DebugBreakHelper(isolate); |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 10641 | } |
| 10642 | |
| 10643 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10644 | // Helper functions for wrapping and unwrapping stack frame ids. |
| 10645 | static Smi* WrapFrameId(StackFrame::Id id) { |
kasperl@chromium.org | 71affb5 | 2009-05-26 05:44:31 +0000 | [diff] [blame] | 10646 | ASSERT(IsAligned(OffsetFrom(id), static_cast<intptr_t>(4))); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10647 | return Smi::FromInt(id >> 2); |
| 10648 | } |
| 10649 | |
| 10650 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 10651 | static StackFrame::Id UnwrapFrameId(int wrapped) { |
| 10652 | return static_cast<StackFrame::Id>(wrapped << 2); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10653 | } |
| 10654 | |
| 10655 | |
| 10656 | // Adds a JavaScript function as a debug event listener. |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 10657 | // args[0]: debug event listener function to set or null or undefined for |
| 10658 | // clearing the event listener function |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10659 | // args[1]: object supplied during callback |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 10660 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SetDebugEventListener) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 10661 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10662 | ASSERT(args.length() == 2); |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 10663 | RUNTIME_ASSERT(args[0]->IsJSFunction() || |
| 10664 | args[0]->IsUndefined() || |
| 10665 | args[0]->IsNull()); |
| 10666 | Handle<Object> callback = args.at<Object>(0); |
| 10667 | Handle<Object> data = args.at<Object>(1); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10668 | isolate->debugger()->SetEventListener(callback, data); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10669 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10670 | return isolate->heap()->undefined_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10671 | } |
| 10672 | |
| 10673 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 10674 | RUNTIME_FUNCTION(MaybeObject*, Runtime_Break) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 10675 | SealHandleScope shs(isolate); |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 10676 | ASSERT(args.length() == 0); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10677 | isolate->stack_guard()->DebugBreak(); |
| 10678 | return isolate->heap()->undefined_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10679 | } |
| 10680 | |
| 10681 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10682 | static MaybeObject* DebugLookupResultValue(Heap* heap, |
| 10683 | Object* receiver, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 10684 | Name* name, |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 10685 | LookupResult* result, |
| 10686 | bool* caught_exception) { |
sgjesse@chromium.org | 715915b | 2009-01-19 16:08:47 +0000 | [diff] [blame] | 10687 | Object* value; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10688 | switch (result->type()) { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 10689 | case NORMAL: |
| 10690 | value = result->holder()->GetNormalizedProperty(result); |
sgjesse@chromium.org | 715915b | 2009-01-19 16:08:47 +0000 | [diff] [blame] | 10691 | if (value->IsTheHole()) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10692 | return heap->undefined_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10693 | } |
| 10694 | return value; |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 10695 | case FIELD: { |
| 10696 | Object* value; |
| 10697 | MaybeObject* maybe_value = |
yangguo@chromium.org | eeb44b6 | 2012-11-13 13:56:09 +0000 | [diff] [blame] | 10698 | JSObject::cast(result->holder())->FastPropertyAt( |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 10699 | result->representation(), |
yangguo@chromium.org | eeb44b6 | 2012-11-13 13:56:09 +0000 | [diff] [blame] | 10700 | result->GetFieldIndex().field_index()); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 10701 | if (!maybe_value->To(&value)) return maybe_value; |
sgjesse@chromium.org | 715915b | 2009-01-19 16:08:47 +0000 | [diff] [blame] | 10702 | if (value->IsTheHole()) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10703 | return heap->undefined_value(); |
sgjesse@chromium.org | 715915b | 2009-01-19 16:08:47 +0000 | [diff] [blame] | 10704 | } |
| 10705 | return value; |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 10706 | } |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 10707 | case CONSTANT: |
| 10708 | return result->GetConstant(); |
sgjesse@chromium.org | 715915b | 2009-01-19 16:08:47 +0000 | [diff] [blame] | 10709 | case CALLBACKS: { |
| 10710 | Object* structure = result->GetCallbackObject(); |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 10711 | if (structure->IsForeign() || structure->IsAccessorInfo()) { |
mstarzinger@chromium.org | 2ed0d02 | 2013-10-17 08:06:21 +0000 | [diff] [blame] | 10712 | Isolate* isolate = heap->isolate(); |
| 10713 | HandleScope scope(isolate); |
| 10714 | Handle<Object> value = JSObject::GetPropertyWithCallback( |
| 10715 | handle(result->holder(), isolate), |
| 10716 | handle(receiver, isolate), |
| 10717 | handle(structure, isolate), |
| 10718 | handle(name, isolate)); |
| 10719 | if (value.is_null()) { |
| 10720 | MaybeObject* exception = heap->isolate()->pending_exception(); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10721 | heap->isolate()->clear_pending_exception(); |
mstarzinger@chromium.org | 2ed0d02 | 2013-10-17 08:06:21 +0000 | [diff] [blame] | 10722 | if (caught_exception != NULL) *caught_exception = true; |
| 10723 | return exception; |
sgjesse@chromium.org | 715915b | 2009-01-19 16:08:47 +0000 | [diff] [blame] | 10724 | } |
mstarzinger@chromium.org | 2ed0d02 | 2013-10-17 08:06:21 +0000 | [diff] [blame] | 10725 | return *value; |
sgjesse@chromium.org | 715915b | 2009-01-19 16:08:47 +0000 | [diff] [blame] | 10726 | } else { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10727 | return heap->undefined_value(); |
sgjesse@chromium.org | 715915b | 2009-01-19 16:08:47 +0000 | [diff] [blame] | 10728 | } |
| 10729 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10730 | case INTERCEPTOR: |
yangguo@chromium.org | 99aa490 | 2012-07-06 16:21:55 +0000 | [diff] [blame] | 10731 | case TRANSITION: |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10732 | return heap->undefined_value(); |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 10733 | case HANDLER: |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 10734 | case NONEXISTENT: |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10735 | UNREACHABLE(); |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 10736 | return heap->undefined_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10737 | } |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 10738 | UNREACHABLE(); // keep the compiler happy |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10739 | return heap->undefined_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10740 | } |
| 10741 | |
| 10742 | |
ager@chromium.org | 3291210 | 2009-01-16 10:38:43 +0000 | [diff] [blame] | 10743 | // Get debugger related details for an object property. |
| 10744 | // args[0]: object holding property |
| 10745 | // args[1]: name of the property |
| 10746 | // |
| 10747 | // The array returned contains the following information: |
| 10748 | // 0: Property value |
| 10749 | // 1: Property details |
| 10750 | // 2: Property value is exception |
| 10751 | // 3: Getter function if defined |
| 10752 | // 4: Setter function if defined |
| 10753 | // Items 2-4 are only filled if the property has either a getter or a setter |
| 10754 | // defined through __defineGetter__ and/or __defineSetter__. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 10755 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DebugGetPropertyDetails) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10756 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10757 | |
| 10758 | ASSERT(args.length() == 2); |
| 10759 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 10760 | CONVERT_ARG_HANDLE_CHECKED(JSObject, obj, 0); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 10761 | CONVERT_ARG_HANDLE_CHECKED(Name, name, 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10762 | |
sgjesse@chromium.org | 755c5b1 | 2009-05-29 11:04:38 +0000 | [diff] [blame] | 10763 | // Make sure to set the current context to the context before the debugger was |
| 10764 | // entered (if the debugger is entered). The reason for switching context here |
| 10765 | // is that for some property lookups (accessors and interceptors) callbacks |
| 10766 | // into the embedding application can occour, and the embedding application |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 10767 | // could have the assumption that its own native context is the current |
sgjesse@chromium.org | 755c5b1 | 2009-05-29 11:04:38 +0000 | [diff] [blame] | 10768 | // context and not some internal debugger context. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10769 | SaveContext save(isolate); |
| 10770 | if (isolate->debug()->InDebugger()) { |
| 10771 | isolate->set_context(*isolate->debug()->debugger_entry()->GetContext()); |
sgjesse@chromium.org | 755c5b1 | 2009-05-29 11:04:38 +0000 | [diff] [blame] | 10772 | } |
| 10773 | |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 10774 | // Skip the global proxy as it has no properties and always delegates to the |
| 10775 | // real global object. |
| 10776 | if (obj->IsJSGlobalProxy()) { |
| 10777 | obj = Handle<JSObject>(JSObject::cast(obj->GetPrototype())); |
| 10778 | } |
| 10779 | |
| 10780 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10781 | // Check if the name is trivially convertible to an index and get the element |
| 10782 | // if so. |
| 10783 | uint32_t index; |
| 10784 | if (name->AsArrayIndex(&index)) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10785 | Handle<FixedArray> details = isolate->factory()->NewFixedArray(2); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 10786 | Object* element_or_char; |
| 10787 | { MaybeObject* maybe_element_or_char = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10788 | Runtime::GetElementOrCharAt(isolate, obj, index); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 10789 | if (!maybe_element_or_char->ToObject(&element_or_char)) { |
| 10790 | return maybe_element_or_char; |
| 10791 | } |
| 10792 | } |
whesse@chromium.org | 4a1fe7d | 2010-09-27 12:32:04 +0000 | [diff] [blame] | 10793 | details->set(0, element_or_char); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 10794 | details->set( |
| 10795 | 1, PropertyDetails(NONE, NORMAL, Representation::None()).AsSmi()); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10796 | return *isolate->factory()->NewJSArrayWithElements(details); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10797 | } |
| 10798 | |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 10799 | // Find the number of objects making up this. |
| 10800 | int length = LocalPrototypeChainLength(*obj); |
| 10801 | |
| 10802 | // Try local lookup on each of the objects. |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 10803 | Handle<JSObject> jsproto = obj; |
| 10804 | for (int i = 0; i < length; i++) { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 10805 | LookupResult result(isolate); |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 10806 | jsproto->LocalLookup(*name, &result); |
verwaest@chromium.org | 753aee4 | 2012-07-17 16:15:42 +0000 | [diff] [blame] | 10807 | if (result.IsFound()) { |
christian.plesner.hansen@gmail.com | 2bc58ef | 2009-09-22 10:00:30 +0000 | [diff] [blame] | 10808 | // LookupResult is not GC safe as it holds raw object pointers. |
| 10809 | // GC can happen later in this code so put the required fields into |
| 10810 | // local variables using handles when required for later use. |
christian.plesner.hansen@gmail.com | 2bc58ef | 2009-09-22 10:00:30 +0000 | [diff] [blame] | 10811 | Handle<Object> result_callback_obj; |
yangguo@chromium.org | 99aa490 | 2012-07-06 16:21:55 +0000 | [diff] [blame] | 10812 | if (result.IsPropertyCallbacks()) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10813 | result_callback_obj = Handle<Object>(result.GetCallbackObject(), |
| 10814 | isolate); |
christian.plesner.hansen@gmail.com | 2bc58ef | 2009-09-22 10:00:30 +0000 | [diff] [blame] | 10815 | } |
| 10816 | Smi* property_details = result.GetPropertyDetails().AsSmi(); |
| 10817 | // DebugLookupResultValue can cause GC so details from LookupResult needs |
| 10818 | // to be copied to handles before this. |
| 10819 | bool caught_exception = false; |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 10820 | Object* raw_value; |
| 10821 | { MaybeObject* maybe_raw_value = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10822 | DebugLookupResultValue(isolate->heap(), *obj, *name, |
| 10823 | &result, &caught_exception); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 10824 | if (!maybe_raw_value->ToObject(&raw_value)) return maybe_raw_value; |
| 10825 | } |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10826 | Handle<Object> value(raw_value, isolate); |
christian.plesner.hansen@gmail.com | 2bc58ef | 2009-09-22 10:00:30 +0000 | [diff] [blame] | 10827 | |
| 10828 | // If the callback object is a fixed array then it contains JavaScript |
| 10829 | // getter and/or setter. |
yangguo@chromium.org | 99aa490 | 2012-07-06 16:21:55 +0000 | [diff] [blame] | 10830 | bool hasJavaScriptAccessors = result.IsPropertyCallbacks() && |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 10831 | result_callback_obj->IsAccessorPair(); |
christian.plesner.hansen@gmail.com | 2bc58ef | 2009-09-22 10:00:30 +0000 | [diff] [blame] | 10832 | Handle<FixedArray> details = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10833 | isolate->factory()->NewFixedArray(hasJavaScriptAccessors ? 5 : 2); |
christian.plesner.hansen@gmail.com | 2bc58ef | 2009-09-22 10:00:30 +0000 | [diff] [blame] | 10834 | details->set(0, *value); |
| 10835 | details->set(1, property_details); |
| 10836 | if (hasJavaScriptAccessors) { |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 10837 | AccessorPair* accessors = AccessorPair::cast(*result_callback_obj); |
kmillikin@chromium.org | 7c2628c | 2011-08-10 11:27:35 +0000 | [diff] [blame] | 10838 | details->set(2, isolate->heap()->ToBoolean(caught_exception)); |
danno@chromium.org | 88aa058 | 2012-03-23 15:11:57 +0000 | [diff] [blame] | 10839 | details->set(3, accessors->GetComponent(ACCESSOR_GETTER)); |
| 10840 | details->set(4, accessors->GetComponent(ACCESSOR_SETTER)); |
christian.plesner.hansen@gmail.com | 2bc58ef | 2009-09-22 10:00:30 +0000 | [diff] [blame] | 10841 | } |
| 10842 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10843 | return *isolate->factory()->NewJSArrayWithElements(details); |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 10844 | } |
| 10845 | if (i < length - 1) { |
| 10846 | jsproto = Handle<JSObject>(JSObject::cast(jsproto->GetPrototype())); |
| 10847 | } |
| 10848 | } |
| 10849 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10850 | return isolate->heap()->undefined_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10851 | } |
| 10852 | |
| 10853 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 10854 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DebugGetProperty) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10855 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10856 | |
| 10857 | ASSERT(args.length() == 2); |
| 10858 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 10859 | CONVERT_ARG_HANDLE_CHECKED(JSObject, obj, 0); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 10860 | CONVERT_ARG_HANDLE_CHECKED(Name, name, 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10861 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 10862 | LookupResult result(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10863 | obj->Lookup(*name, &result); |
verwaest@chromium.org | 753aee4 | 2012-07-17 16:15:42 +0000 | [diff] [blame] | 10864 | if (result.IsFound()) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10865 | return DebugLookupResultValue(isolate->heap(), *obj, *name, &result, NULL); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10866 | } |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10867 | return isolate->heap()->undefined_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10868 | } |
| 10869 | |
| 10870 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10871 | // Return the property type calculated from the property details. |
| 10872 | // args[0]: smi with property details. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 10873 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DebugPropertyTypeFromDetails) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 10874 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10875 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 10876 | CONVERT_PROPERTY_DETAILS_CHECKED(details, 0); |
| 10877 | return Smi::FromInt(static_cast<int>(details.type())); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10878 | } |
| 10879 | |
| 10880 | |
| 10881 | // Return the property attribute calculated from the property details. |
| 10882 | // args[0]: smi with property details. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 10883 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DebugPropertyAttributesFromDetails) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 10884 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10885 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 10886 | CONVERT_PROPERTY_DETAILS_CHECKED(details, 0); |
| 10887 | return Smi::FromInt(static_cast<int>(details.attributes())); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10888 | } |
| 10889 | |
| 10890 | |
| 10891 | // Return the property insertion index calculated from the property details. |
| 10892 | // args[0]: smi with property details. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 10893 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DebugPropertyIndexFromDetails) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 10894 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10895 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 10896 | CONVERT_PROPERTY_DETAILS_CHECKED(details, 0); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 10897 | // TODO(verwaest): Depends on the type of details. |
| 10898 | return Smi::FromInt(details.dictionary_index()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10899 | } |
| 10900 | |
| 10901 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10902 | // Return property value from named interceptor. |
| 10903 | // args[0]: object |
| 10904 | // args[1]: property name |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 10905 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DebugNamedInterceptorPropertyValue) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10906 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10907 | ASSERT(args.length() == 2); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 10908 | CONVERT_ARG_HANDLE_CHECKED(JSObject, obj, 0); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10909 | RUNTIME_ASSERT(obj->HasNamedInterceptor()); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 10910 | CONVERT_ARG_HANDLE_CHECKED(Name, name, 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10911 | |
| 10912 | PropertyAttributes attributes; |
mvstanton@chromium.org | dd6d9ee | 2013-10-11 10:35:37 +0000 | [diff] [blame] | 10913 | Handle<Object> result = |
| 10914 | JSObject::GetPropertyWithInterceptor(obj, obj, name, &attributes); |
| 10915 | RETURN_IF_EMPTY_HANDLE(isolate, result); |
| 10916 | return *result; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10917 | } |
| 10918 | |
| 10919 | |
| 10920 | // Return element value from indexed interceptor. |
| 10921 | // args[0]: object |
| 10922 | // args[1]: index |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 10923 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DebugIndexedInterceptorElementValue) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10924 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10925 | ASSERT(args.length() == 2); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 10926 | CONVERT_ARG_HANDLE_CHECKED(JSObject, obj, 0); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10927 | RUNTIME_ASSERT(obj->HasIndexedInterceptor()); |
| 10928 | CONVERT_NUMBER_CHECKED(uint32_t, index, Uint32, args[1]); |
| 10929 | |
mads.s.ager@gmail.com | 9a4089a | 2008-09-01 08:55:01 +0000 | [diff] [blame] | 10930 | return obj->GetElementWithInterceptor(*obj, index); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10931 | } |
| 10932 | |
| 10933 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 10934 | RUNTIME_FUNCTION(MaybeObject*, Runtime_CheckExecutionState) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 10935 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10936 | ASSERT(args.length() >= 1); |
| 10937 | CONVERT_NUMBER_CHECKED(int, break_id, Int32, args[0]); |
ager@chromium.org | 8bb6058 | 2008-12-11 12:02:20 +0000 | [diff] [blame] | 10938 | // Check that the break id is valid. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10939 | if (isolate->debug()->break_id() == 0 || |
| 10940 | break_id != isolate->debug()->break_id()) { |
| 10941 | return isolate->Throw( |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 10942 | isolate->heap()->illegal_execution_state_string()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10943 | } |
| 10944 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10945 | return isolate->heap()->true_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10946 | } |
| 10947 | |
| 10948 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 10949 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetFrameCount) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10950 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10951 | ASSERT(args.length() == 1); |
| 10952 | |
| 10953 | // Check arguments. |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 10954 | Object* result; |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 10955 | { MaybeObject* maybe_result = Runtime_CheckExecutionState( |
| 10956 | RUNTIME_ARGUMENTS(isolate, args)); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 10957 | if (!maybe_result->ToObject(&result)) return maybe_result; |
| 10958 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10959 | |
| 10960 | // Count all frames which are relevant to debugging stack trace. |
| 10961 | int n = 0; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 10962 | StackFrame::Id id = isolate->debug()->break_frame_id(); |
ager@chromium.org | 8bb6058 | 2008-12-11 12:02:20 +0000 | [diff] [blame] | 10963 | if (id == StackFrame::NO_ID) { |
| 10964 | // If there is no JavaScript stack frame count is 0. |
| 10965 | return Smi::FromInt(0); |
| 10966 | } |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 10967 | |
| 10968 | for (JavaScriptFrameIterator it(isolate, id); !it.done(); it.Advance()) { |
| 10969 | n += it.frame()->GetInlineCount(); |
| 10970 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 10971 | return Smi::FromInt(n); |
| 10972 | } |
| 10973 | |
| 10974 | |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 10975 | class FrameInspector { |
| 10976 | public: |
| 10977 | FrameInspector(JavaScriptFrame* frame, |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 10978 | int inlined_jsframe_index, |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 10979 | Isolate* isolate) |
| 10980 | : frame_(frame), deoptimized_frame_(NULL), isolate_(isolate) { |
| 10981 | // Calculate the deoptimized frame. |
| 10982 | if (frame->is_optimized()) { |
| 10983 | deoptimized_frame_ = Deoptimizer::DebuggerInspectableFrame( |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 10984 | frame, inlined_jsframe_index, isolate); |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 10985 | } |
| 10986 | has_adapted_arguments_ = frame_->has_adapted_arguments(); |
ulan@chromium.org | 967e270 | 2012-02-28 09:49:15 +0000 | [diff] [blame] | 10987 | is_bottommost_ = inlined_jsframe_index == 0; |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 10988 | is_optimized_ = frame_->is_optimized(); |
| 10989 | } |
| 10990 | |
| 10991 | ~FrameInspector() { |
| 10992 | // Get rid of the calculated deoptimized frame if any. |
| 10993 | if (deoptimized_frame_ != NULL) { |
| 10994 | Deoptimizer::DeleteDebuggerInspectableFrame(deoptimized_frame_, |
| 10995 | isolate_); |
| 10996 | } |
| 10997 | } |
| 10998 | |
| 10999 | int GetParametersCount() { |
| 11000 | return is_optimized_ |
| 11001 | ? deoptimized_frame_->parameters_count() |
| 11002 | : frame_->ComputeParametersCount(); |
| 11003 | } |
| 11004 | int expression_count() { return deoptimized_frame_->expression_count(); } |
| 11005 | Object* GetFunction() { |
| 11006 | return is_optimized_ |
| 11007 | ? deoptimized_frame_->GetFunction() |
| 11008 | : frame_->function(); |
| 11009 | } |
| 11010 | Object* GetParameter(int index) { |
| 11011 | return is_optimized_ |
| 11012 | ? deoptimized_frame_->GetParameter(index) |
| 11013 | : frame_->GetParameter(index); |
| 11014 | } |
| 11015 | Object* GetExpression(int index) { |
| 11016 | return is_optimized_ |
| 11017 | ? deoptimized_frame_->GetExpression(index) |
| 11018 | : frame_->GetExpression(index); |
| 11019 | } |
danno@chromium.org | fa458e4 | 2012-02-01 10:48:36 +0000 | [diff] [blame] | 11020 | int GetSourcePosition() { |
| 11021 | return is_optimized_ |
| 11022 | ? deoptimized_frame_->GetSourcePosition() |
| 11023 | : frame_->LookupCode()->SourcePosition(frame_->pc()); |
| 11024 | } |
ulan@chromium.org | 967e270 | 2012-02-28 09:49:15 +0000 | [diff] [blame] | 11025 | bool IsConstructor() { |
| 11026 | return is_optimized_ && !is_bottommost_ |
| 11027 | ? deoptimized_frame_->HasConstructStub() |
| 11028 | : frame_->IsConstructor(); |
| 11029 | } |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 11030 | |
| 11031 | // To inspect all the provided arguments the frame might need to be |
| 11032 | // replaced with the arguments frame. |
| 11033 | void SetArgumentsFrame(JavaScriptFrame* frame) { |
| 11034 | ASSERT(has_adapted_arguments_); |
| 11035 | frame_ = frame; |
| 11036 | is_optimized_ = frame_->is_optimized(); |
| 11037 | ASSERT(!is_optimized_); |
| 11038 | } |
| 11039 | |
| 11040 | private: |
| 11041 | JavaScriptFrame* frame_; |
| 11042 | DeoptimizedFrameInfo* deoptimized_frame_; |
| 11043 | Isolate* isolate_; |
| 11044 | bool is_optimized_; |
ulan@chromium.org | 967e270 | 2012-02-28 09:49:15 +0000 | [diff] [blame] | 11045 | bool is_bottommost_; |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 11046 | bool has_adapted_arguments_; |
| 11047 | |
| 11048 | DISALLOW_COPY_AND_ASSIGN(FrameInspector); |
| 11049 | }; |
| 11050 | |
| 11051 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11052 | static const int kFrameDetailsFrameIdIndex = 0; |
| 11053 | static const int kFrameDetailsReceiverIndex = 1; |
| 11054 | static const int kFrameDetailsFunctionIndex = 2; |
| 11055 | static const int kFrameDetailsArgumentCountIndex = 3; |
| 11056 | static const int kFrameDetailsLocalCountIndex = 4; |
| 11057 | static const int kFrameDetailsSourcePositionIndex = 5; |
| 11058 | static const int kFrameDetailsConstructCallIndex = 6; |
ager@chromium.org | 2cc82ae | 2010-06-14 07:35:38 +0000 | [diff] [blame] | 11059 | static const int kFrameDetailsAtReturnIndex = 7; |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 11060 | static const int kFrameDetailsFlagsIndex = 8; |
ager@chromium.org | 2cc82ae | 2010-06-14 07:35:38 +0000 | [diff] [blame] | 11061 | static const int kFrameDetailsFirstDynamicIndex = 9; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11062 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 11063 | |
| 11064 | static SaveContext* FindSavedContextForFrame(Isolate* isolate, |
| 11065 | JavaScriptFrame* frame) { |
| 11066 | SaveContext* save = isolate->save_context(); |
| 11067 | while (save != NULL && !save->IsBelowFrame(frame)) { |
| 11068 | save = save->prev(); |
| 11069 | } |
| 11070 | ASSERT(save != NULL); |
| 11071 | return save; |
| 11072 | } |
| 11073 | |
| 11074 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11075 | // Return an array with frame details |
| 11076 | // args[0]: number: break id |
| 11077 | // args[1]: number: frame index |
| 11078 | // |
| 11079 | // The array returned contains the following information: |
| 11080 | // 0: Frame id |
| 11081 | // 1: Receiver |
| 11082 | // 2: Function |
| 11083 | // 3: Argument count |
| 11084 | // 4: Local count |
| 11085 | // 5: Source position |
| 11086 | // 6: Constructor call |
ager@chromium.org | 2cc82ae | 2010-06-14 07:35:38 +0000 | [diff] [blame] | 11087 | // 7: Is at return |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 11088 | // 8: Flags |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11089 | // Arguments name, value |
| 11090 | // Locals name, value |
ager@chromium.org | 2cc82ae | 2010-06-14 07:35:38 +0000 | [diff] [blame] | 11091 | // Return value if any |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 11092 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetFrameDetails) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 11093 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11094 | ASSERT(args.length() == 2); |
| 11095 | |
| 11096 | // Check arguments. |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 11097 | Object* check; |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 11098 | { MaybeObject* maybe_check = Runtime_CheckExecutionState( |
| 11099 | RUNTIME_ARGUMENTS(isolate, args)); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 11100 | if (!maybe_check->ToObject(&check)) return maybe_check; |
| 11101 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11102 | CONVERT_NUMBER_CHECKED(int, index, Int32, args[1]); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 11103 | Heap* heap = isolate->heap(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11104 | |
| 11105 | // Find the relevant frame with the requested index. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 11106 | StackFrame::Id id = isolate->debug()->break_frame_id(); |
ager@chromium.org | 8bb6058 | 2008-12-11 12:02:20 +0000 | [diff] [blame] | 11107 | if (id == StackFrame::NO_ID) { |
| 11108 | // If there are no JavaScript stack frames return undefined. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 11109 | return heap->undefined_value(); |
ager@chromium.org | 8bb6058 | 2008-12-11 12:02:20 +0000 | [diff] [blame] | 11110 | } |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 11111 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11112 | int count = 0; |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 11113 | JavaScriptFrameIterator it(isolate, id); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11114 | for (; !it.done(); it.Advance()) { |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 11115 | if (index < count + it.frame()->GetInlineCount()) break; |
| 11116 | count += it.frame()->GetInlineCount(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11117 | } |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 11118 | if (it.done()) return heap->undefined_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11119 | |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 11120 | bool is_optimized = it.frame()->is_optimized(); |
| 11121 | |
| 11122 | int inlined_jsframe_index = 0; // Inlined frame index in optimized frame. |
| 11123 | if (is_optimized) { |
| 11124 | inlined_jsframe_index = |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 11125 | it.frame()->GetInlineCount() - (index - count) - 1; |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 11126 | } |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 11127 | FrameInspector frame_inspector(it.frame(), inlined_jsframe_index, isolate); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 11128 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11129 | // Traverse the saved contexts chain to find the active context for the |
| 11130 | // selected frame. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 11131 | SaveContext* save = FindSavedContextForFrame(isolate, it.frame()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11132 | |
| 11133 | // Get the frame id. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 11134 | Handle<Object> frame_id(WrapFrameId(it.frame()->id()), isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11135 | |
danno@chromium.org | fa458e4 | 2012-02-01 10:48:36 +0000 | [diff] [blame] | 11136 | // Find source position in unoptimized code. |
| 11137 | int position = frame_inspector.GetSourcePosition(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11138 | |
ulan@chromium.org | 967e270 | 2012-02-28 09:49:15 +0000 | [diff] [blame] | 11139 | // Check for constructor frame. |
| 11140 | bool constructor = frame_inspector.IsConstructor(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11141 | |
ager@chromium.org | 6a2b0aa | 2010-07-13 20:58:03 +0000 | [diff] [blame] | 11142 | // Get scope info and read from it for local variable information. |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 11143 | Handle<JSFunction> function(JSFunction::cast(frame_inspector.GetFunction())); |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 11144 | Handle<SharedFunctionInfo> shared(function->shared()); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 11145 | Handle<ScopeInfo> scope_info(shared->scope_info()); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 11146 | ASSERT(*scope_info != ScopeInfo::Empty(isolate)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11147 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11148 | // Get the locals names and values into a temporary array. |
| 11149 | // |
| 11150 | // TODO(1240907): Hide compiler-introduced stack variables |
| 11151 | // (e.g. .result)? For users of the debugger, they will probably be |
| 11152 | // confusing. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 11153 | Handle<FixedArray> locals = |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 11154 | isolate->factory()->NewFixedArray(scope_info->LocalCount() * 2); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11155 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 11156 | // Fill in the values of the locals. |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 11157 | int i = 0; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 11158 | for (; i < scope_info->StackLocalCount(); ++i) { |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 11159 | // Use the value from the stack. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 11160 | locals->set(i * 2, scope_info->LocalName(i)); |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 11161 | locals->set(i * 2 + 1, frame_inspector.GetExpression(i)); |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 11162 | } |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 11163 | if (i < scope_info->LocalCount()) { |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 11164 | // Get the context containing declarations. |
| 11165 | Handle<Context> context( |
| 11166 | Context::cast(it.frame()->context())->declaration_context()); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 11167 | for (; i < scope_info->LocalCount(); ++i) { |
| 11168 | Handle<String> name(scope_info->LocalName(i)); |
| 11169 | VariableMode mode; |
| 11170 | InitializationFlag init_flag; |
vegorov@chromium.org | 3cf4731 | 2011-06-29 13:20:01 +0000 | [diff] [blame] | 11171 | locals->set(i * 2, *name); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 11172 | locals->set(i * 2 + 1, context->get( |
| 11173 | scope_info->ContextSlotIndex(*name, &mode, &init_flag))); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11174 | } |
| 11175 | } |
| 11176 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 11177 | // Check whether this frame is positioned at return. If not top |
| 11178 | // frame or if the frame is optimized it cannot be at a return. |
| 11179 | bool at_return = false; |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 11180 | if (!is_optimized && index == 0) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 11181 | at_return = isolate->debug()->IsBreakAtReturn(it.frame()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 11182 | } |
ager@chromium.org | 2cc82ae | 2010-06-14 07:35:38 +0000 | [diff] [blame] | 11183 | |
| 11184 | // If positioned just before return find the value to be returned and add it |
| 11185 | // to the frame information. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 11186 | Handle<Object> return_value = isolate->factory()->undefined_value(); |
ager@chromium.org | 2cc82ae | 2010-06-14 07:35:38 +0000 | [diff] [blame] | 11187 | if (at_return) { |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 11188 | StackFrameIterator it2(isolate); |
ager@chromium.org | 2cc82ae | 2010-06-14 07:35:38 +0000 | [diff] [blame] | 11189 | Address internal_frame_sp = NULL; |
| 11190 | while (!it2.done()) { |
| 11191 | if (it2.frame()->is_internal()) { |
| 11192 | internal_frame_sp = it2.frame()->sp(); |
| 11193 | } else { |
| 11194 | if (it2.frame()->is_java_script()) { |
| 11195 | if (it2.frame()->id() == it.frame()->id()) { |
| 11196 | // The internal frame just before the JavaScript frame contains the |
| 11197 | // value to return on top. A debug break at return will create an |
| 11198 | // internal frame to store the return value (eax/rax/r0) before |
| 11199 | // entering the debug break exit frame. |
| 11200 | if (internal_frame_sp != NULL) { |
| 11201 | return_value = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 11202 | Handle<Object>(Memory::Object_at(internal_frame_sp), |
| 11203 | isolate); |
ager@chromium.org | 2cc82ae | 2010-06-14 07:35:38 +0000 | [diff] [blame] | 11204 | break; |
| 11205 | } |
| 11206 | } |
| 11207 | } |
| 11208 | |
| 11209 | // Indicate that the previous frame was not an internal frame. |
| 11210 | internal_frame_sp = NULL; |
| 11211 | } |
| 11212 | it2.Advance(); |
| 11213 | } |
| 11214 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11215 | |
| 11216 | // Now advance to the arguments adapter frame (if any). It contains all |
| 11217 | // the provided parameters whereas the function frame always have the number |
| 11218 | // of arguments matching the functions parameters. The rest of the |
| 11219 | // information (except for what is collected above) is the same. |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 11220 | if ((inlined_jsframe_index == 0) && it.frame()->has_adapted_arguments()) { |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 11221 | it.AdvanceToArgumentsFrame(); |
| 11222 | frame_inspector.SetArgumentsFrame(it.frame()); |
| 11223 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11224 | |
| 11225 | // Find the number of arguments to fill. At least fill the number of |
| 11226 | // parameters for the function and fill more if more parameters are provided. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 11227 | int argument_count = scope_info->ParameterCount(); |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 11228 | if (argument_count < frame_inspector.GetParametersCount()) { |
| 11229 | argument_count = frame_inspector.GetParametersCount(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11230 | } |
| 11231 | |
| 11232 | // Calculate the size of the result. |
| 11233 | int details_size = kFrameDetailsFirstDynamicIndex + |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 11234 | 2 * (argument_count + scope_info->LocalCount()) + |
ager@chromium.org | 2cc82ae | 2010-06-14 07:35:38 +0000 | [diff] [blame] | 11235 | (at_return ? 1 : 0); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 11236 | Handle<FixedArray> details = isolate->factory()->NewFixedArray(details_size); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11237 | |
| 11238 | // Add the frame id. |
| 11239 | details->set(kFrameDetailsFrameIdIndex, *frame_id); |
| 11240 | |
| 11241 | // Add the function (same as in function frame). |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 11242 | details->set(kFrameDetailsFunctionIndex, frame_inspector.GetFunction()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11243 | |
| 11244 | // Add the arguments count. |
| 11245 | details->set(kFrameDetailsArgumentCountIndex, Smi::FromInt(argument_count)); |
| 11246 | |
| 11247 | // Add the locals count |
| 11248 | details->set(kFrameDetailsLocalCountIndex, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 11249 | Smi::FromInt(scope_info->LocalCount())); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11250 | |
| 11251 | // Add the source position. |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 11252 | if (position != RelocInfo::kNoPosition) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11253 | details->set(kFrameDetailsSourcePositionIndex, Smi::FromInt(position)); |
| 11254 | } else { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 11255 | details->set(kFrameDetailsSourcePositionIndex, heap->undefined_value()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11256 | } |
| 11257 | |
| 11258 | // Add the constructor information. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 11259 | details->set(kFrameDetailsConstructCallIndex, heap->ToBoolean(constructor)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11260 | |
ager@chromium.org | 2cc82ae | 2010-06-14 07:35:38 +0000 | [diff] [blame] | 11261 | // Add the at return information. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 11262 | details->set(kFrameDetailsAtReturnIndex, heap->ToBoolean(at_return)); |
ager@chromium.org | 2cc82ae | 2010-06-14 07:35:38 +0000 | [diff] [blame] | 11263 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 11264 | // Add flags to indicate information on whether this frame is |
| 11265 | // bit 0: invoked in the debugger context. |
| 11266 | // bit 1: optimized frame. |
| 11267 | // bit 2: inlined in optimized frame |
| 11268 | int flags = 0; |
| 11269 | if (*save->context() == *isolate->debug()->debug_context()) { |
| 11270 | flags |= 1 << 0; |
| 11271 | } |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 11272 | if (is_optimized) { |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 11273 | flags |= 1 << 1; |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 11274 | flags |= inlined_jsframe_index << 2; |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 11275 | } |
| 11276 | details->set(kFrameDetailsFlagsIndex, Smi::FromInt(flags)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11277 | |
| 11278 | // Fill the dynamic part. |
| 11279 | int details_index = kFrameDetailsFirstDynamicIndex; |
| 11280 | |
| 11281 | // Add arguments name and value. |
| 11282 | for (int i = 0; i < argument_count; i++) { |
| 11283 | // Name of the argument. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 11284 | if (i < scope_info->ParameterCount()) { |
| 11285 | details->set(details_index++, scope_info->ParameterName(i)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11286 | } else { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 11287 | details->set(details_index++, heap->undefined_value()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11288 | } |
| 11289 | |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 11290 | // Parameter value. |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 11291 | if (i < frame_inspector.GetParametersCount()) { |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 11292 | // Get the value from the stack. |
| 11293 | details->set(details_index++, frame_inspector.GetParameter(i)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11294 | } else { |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 11295 | details->set(details_index++, heap->undefined_value()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11296 | } |
| 11297 | } |
| 11298 | |
| 11299 | // Add locals name and value from the temporary copy from the function frame. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 11300 | for (int i = 0; i < scope_info->LocalCount() * 2; i++) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11301 | details->set(details_index++, locals->get(i)); |
| 11302 | } |
| 11303 | |
ager@chromium.org | 2cc82ae | 2010-06-14 07:35:38 +0000 | [diff] [blame] | 11304 | // Add the value being returned. |
| 11305 | if (at_return) { |
| 11306 | details->set(details_index++, *return_value); |
| 11307 | } |
| 11308 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11309 | // Add the receiver (same as in function frame). |
| 11310 | // THIS MUST BE DONE LAST SINCE WE MIGHT ADVANCE |
| 11311 | // THE FRAME ITERATOR TO WRAP THE RECEIVER. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 11312 | Handle<Object> receiver(it.frame()->receiver(), isolate); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 11313 | if (!receiver->IsJSObject() && |
| 11314 | shared->is_classic_mode() && |
danno@chromium.org | bee5199 | 2013-07-10 14:57:15 +0000 | [diff] [blame] | 11315 | !function->IsBuiltin()) { |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 11316 | // If the receiver is not a JSObject and the function is not a |
| 11317 | // builtin or strict-mode we have hit an optimization where a |
| 11318 | // value object is not converted into a wrapped JS objects. To |
| 11319 | // hide this optimization from the debugger, we wrap the receiver |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11320 | // by creating correct wrapper object based on the calling frame's |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 11321 | // native context. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11322 | it.Advance(); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 11323 | Handle<Context> calling_frames_native_context( |
| 11324 | Context::cast(Context::cast(it.frame()->context())->native_context())); |
danno@chromium.org | bee5199 | 2013-07-10 14:57:15 +0000 | [diff] [blame] | 11325 | ASSERT(!receiver->IsUndefined() && !receiver->IsNull()); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 11326 | receiver = |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 11327 | isolate->factory()->ToObject(receiver, calling_frames_native_context); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11328 | } |
| 11329 | details->set(kFrameDetailsReceiverIndex, *receiver); |
| 11330 | |
| 11331 | ASSERT_EQ(details_size, details_index); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 11332 | return *isolate->factory()->NewJSArrayWithElements(details); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 11333 | } |
| 11334 | |
| 11335 | |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11336 | // Create a plain JSObject which materializes the local scope for the specified |
| 11337 | // frame. |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 11338 | static Handle<JSObject> MaterializeStackLocalsWithFrameInspector( |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 11339 | Isolate* isolate, |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 11340 | Handle<JSObject> target, |
| 11341 | Handle<JSFunction> function, |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 11342 | FrameInspector* frame_inspector) { |
ager@chromium.org | 6a2b0aa | 2010-07-13 20:58:03 +0000 | [diff] [blame] | 11343 | Handle<SharedFunctionInfo> shared(function->shared()); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 11344 | Handle<ScopeInfo> scope_info(shared->scope_info()); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11345 | |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11346 | // First fill all parameters. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 11347 | for (int i = 0; i < scope_info->ParameterCount(); ++i) { |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 11348 | Handle<String> name(scope_info->ParameterName(i)); |
| 11349 | VariableMode mode; |
| 11350 | InitializationFlag init_flag; |
| 11351 | // Do not materialize the parameter if it is shadowed by a context local. |
| 11352 | if (scope_info->ContextSlotIndex(*name, &mode, &init_flag) != -1) continue; |
| 11353 | |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 11354 | Handle<Object> value(i < frame_inspector->GetParametersCount() |
| 11355 | ? frame_inspector->GetParameter(i) |
| 11356 | : isolate->heap()->undefined_value(), |
| 11357 | isolate); |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 11358 | ASSERT(!value->IsTheHole()); |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 11359 | |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 11360 | RETURN_IF_EMPTY_HANDLE_VALUE( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 11361 | isolate, |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 11362 | Runtime::SetObjectProperty( |
| 11363 | isolate, target, name, value, NONE, kNonStrictMode), |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 11364 | Handle<JSObject>()); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11365 | } |
| 11366 | |
| 11367 | // Second fill all stack locals. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 11368 | for (int i = 0; i < scope_info->StackLocalCount(); ++i) { |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 11369 | Handle<String> name(scope_info->StackLocalName(i)); |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 11370 | Handle<Object> value(frame_inspector->GetExpression(i), isolate); |
| 11371 | if (value->IsTheHole()) continue; |
| 11372 | |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 11373 | RETURN_IF_EMPTY_HANDLE_VALUE( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 11374 | isolate, |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 11375 | Runtime::SetObjectProperty( |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 11376 | isolate, target, name, value, NONE, kNonStrictMode), |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 11377 | Handle<JSObject>()); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11378 | } |
| 11379 | |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 11380 | return target; |
| 11381 | } |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11382 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 11383 | |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 11384 | static void UpdateStackLocalsFromMaterializedObject(Isolate* isolate, |
| 11385 | Handle<JSObject> target, |
| 11386 | Handle<JSFunction> function, |
| 11387 | JavaScriptFrame* frame, |
| 11388 | int inlined_jsframe_index) { |
| 11389 | if (inlined_jsframe_index != 0 || frame->is_optimized()) { |
| 11390 | // Optimized frames are not supported. |
| 11391 | // TODO(yangguo): make sure all code deoptimized when debugger is active |
| 11392 | // and assert that this cannot happen. |
| 11393 | return; |
| 11394 | } |
| 11395 | |
| 11396 | Handle<SharedFunctionInfo> shared(function->shared()); |
| 11397 | Handle<ScopeInfo> scope_info(shared->scope_info()); |
| 11398 | |
| 11399 | // Parameters. |
| 11400 | for (int i = 0; i < scope_info->ParameterCount(); ++i) { |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 11401 | ASSERT(!frame->GetParameter(i)->IsTheHole()); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 11402 | HandleScope scope(isolate); |
| 11403 | Handle<Object> value = GetProperty( |
| 11404 | isolate, target, Handle<String>(scope_info->ParameterName(i))); |
| 11405 | frame->SetParameterValue(i, *value); |
| 11406 | } |
| 11407 | |
| 11408 | // Stack locals. |
| 11409 | for (int i = 0; i < scope_info->StackLocalCount(); ++i) { |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 11410 | if (frame->GetExpression(i)->IsTheHole()) continue; |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 11411 | HandleScope scope(isolate); |
| 11412 | Handle<Object> value = GetProperty( |
| 11413 | isolate, target, Handle<String>(scope_info->StackLocalName(i))); |
| 11414 | frame->SetExpression(i, *value); |
| 11415 | } |
| 11416 | } |
| 11417 | |
| 11418 | |
| 11419 | static Handle<JSObject> MaterializeLocalContext(Isolate* isolate, |
| 11420 | Handle<JSObject> target, |
| 11421 | Handle<JSFunction> function, |
| 11422 | JavaScriptFrame* frame) { |
| 11423 | HandleScope scope(isolate); |
| 11424 | Handle<SharedFunctionInfo> shared(function->shared()); |
| 11425 | Handle<ScopeInfo> scope_info(shared->scope_info()); |
| 11426 | |
| 11427 | if (!scope_info->HasContext()) return target; |
| 11428 | |
| 11429 | // Third fill all context locals. |
| 11430 | Handle<Context> frame_context(Context::cast(frame->context())); |
| 11431 | Handle<Context> function_context(frame_context->declaration_context()); |
jkummerow@chromium.org | d8a3a14 | 2013-10-03 12:15:05 +0000 | [diff] [blame] | 11432 | if (!ScopeInfo::CopyContextLocalsToScopeObject( |
| 11433 | scope_info, function_context, target)) { |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 11434 | return Handle<JSObject>(); |
| 11435 | } |
| 11436 | |
| 11437 | // Finally copy any properties from the function context extension. |
| 11438 | // These will be variables introduced by eval. |
| 11439 | if (function_context->closure() == *function) { |
| 11440 | if (function_context->has_extension() && |
| 11441 | !function_context->IsNativeContext()) { |
| 11442 | Handle<JSObject> ext(JSObject::cast(function_context->extension())); |
| 11443 | bool threw = false; |
| 11444 | Handle<FixedArray> keys = |
| 11445 | GetKeysInFixedArrayFor(ext, INCLUDE_PROTOS, &threw); |
| 11446 | if (threw) return Handle<JSObject>(); |
| 11447 | |
| 11448 | for (int i = 0; i < keys->length(); i++) { |
| 11449 | // Names of variables introduced by eval are strings. |
| 11450 | ASSERT(keys->get(i)->IsString()); |
| 11451 | Handle<String> key(String::cast(keys->get(i))); |
| 11452 | RETURN_IF_EMPTY_HANDLE_VALUE( |
| 11453 | isolate, |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 11454 | Runtime::SetObjectProperty(isolate, |
| 11455 | target, |
| 11456 | key, |
| 11457 | GetProperty(isolate, ext, key), |
| 11458 | NONE, |
| 11459 | kNonStrictMode), |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 11460 | Handle<JSObject>()); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11461 | } |
| 11462 | } |
| 11463 | } |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 11464 | |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 11465 | return target; |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11466 | } |
| 11467 | |
| 11468 | |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 11469 | static Handle<JSObject> MaterializeLocalScope( |
| 11470 | Isolate* isolate, |
| 11471 | JavaScriptFrame* frame, |
| 11472 | int inlined_jsframe_index) { |
| 11473 | FrameInspector frame_inspector(frame, inlined_jsframe_index, isolate); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 11474 | Handle<JSFunction> function(JSFunction::cast(frame_inspector.GetFunction())); |
| 11475 | |
| 11476 | Handle<JSObject> local_scope = |
| 11477 | isolate->factory()->NewJSObject(isolate->object_function()); |
| 11478 | local_scope = MaterializeStackLocalsWithFrameInspector( |
| 11479 | isolate, local_scope, function, &frame_inspector); |
| 11480 | RETURN_IF_EMPTY_HANDLE_VALUE(isolate, local_scope, Handle<JSObject>()); |
| 11481 | |
| 11482 | return MaterializeLocalContext(isolate, local_scope, function, frame); |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 11483 | } |
| 11484 | |
| 11485 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 11486 | // Set the context local variable value. |
| 11487 | static bool SetContextLocalValue(Isolate* isolate, |
| 11488 | Handle<ScopeInfo> scope_info, |
| 11489 | Handle<Context> context, |
| 11490 | Handle<String> variable_name, |
| 11491 | Handle<Object> new_value) { |
| 11492 | for (int i = 0; i < scope_info->ContextLocalCount(); i++) { |
| 11493 | Handle<String> next_name(scope_info->ContextLocalName(i)); |
| 11494 | if (variable_name->Equals(*next_name)) { |
| 11495 | VariableMode mode; |
| 11496 | InitializationFlag init_flag; |
| 11497 | int context_index = |
| 11498 | scope_info->ContextSlotIndex(*next_name, &mode, &init_flag); |
| 11499 | context->set(context_index, *new_value); |
| 11500 | return true; |
| 11501 | } |
| 11502 | } |
| 11503 | |
| 11504 | return false; |
| 11505 | } |
| 11506 | |
| 11507 | |
| 11508 | static bool SetLocalVariableValue(Isolate* isolate, |
| 11509 | JavaScriptFrame* frame, |
| 11510 | int inlined_jsframe_index, |
| 11511 | Handle<String> variable_name, |
| 11512 | Handle<Object> new_value) { |
| 11513 | if (inlined_jsframe_index != 0 || frame->is_optimized()) { |
| 11514 | // Optimized frames are not supported. |
| 11515 | return false; |
| 11516 | } |
| 11517 | |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 11518 | Handle<JSFunction> function(frame->function()); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 11519 | Handle<SharedFunctionInfo> shared(function->shared()); |
| 11520 | Handle<ScopeInfo> scope_info(shared->scope_info()); |
| 11521 | |
| 11522 | bool default_result = false; |
| 11523 | |
| 11524 | // Parameters. |
| 11525 | for (int i = 0; i < scope_info->ParameterCount(); ++i) { |
| 11526 | if (scope_info->ParameterName(i)->Equals(*variable_name)) { |
| 11527 | frame->SetParameterValue(i, *new_value); |
| 11528 | // Argument might be shadowed in heap context, don't stop here. |
| 11529 | default_result = true; |
| 11530 | } |
| 11531 | } |
| 11532 | |
| 11533 | // Stack locals. |
| 11534 | for (int i = 0; i < scope_info->StackLocalCount(); ++i) { |
| 11535 | if (scope_info->StackLocalName(i)->Equals(*variable_name)) { |
| 11536 | frame->SetExpression(i, *new_value); |
| 11537 | return true; |
| 11538 | } |
| 11539 | } |
| 11540 | |
| 11541 | if (scope_info->HasContext()) { |
| 11542 | // Context locals. |
| 11543 | Handle<Context> frame_context(Context::cast(frame->context())); |
| 11544 | Handle<Context> function_context(frame_context->declaration_context()); |
| 11545 | if (SetContextLocalValue( |
| 11546 | isolate, scope_info, function_context, variable_name, new_value)) { |
| 11547 | return true; |
| 11548 | } |
| 11549 | |
| 11550 | // Function context extension. These are variables introduced by eval. |
| 11551 | if (function_context->closure() == *function) { |
| 11552 | if (function_context->has_extension() && |
| 11553 | !function_context->IsNativeContext()) { |
| 11554 | Handle<JSObject> ext(JSObject::cast(function_context->extension())); |
| 11555 | |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 11556 | if (JSReceiver::HasProperty(ext, variable_name)) { |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 11557 | // We don't expect this to do anything except replacing |
| 11558 | // property value. |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 11559 | Runtime::SetObjectProperty(isolate, ext, variable_name, new_value, |
| 11560 | NONE, |
| 11561 | kNonStrictMode); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 11562 | return true; |
| 11563 | } |
| 11564 | } |
| 11565 | } |
| 11566 | } |
| 11567 | |
| 11568 | return default_result; |
| 11569 | } |
| 11570 | |
| 11571 | |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11572 | // Create a plain JSObject which materializes the closure content for the |
| 11573 | // context. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 11574 | static Handle<JSObject> MaterializeClosure(Isolate* isolate, |
| 11575 | Handle<Context> context) { |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 11576 | ASSERT(context->IsFunctionContext()); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11577 | |
ager@chromium.org | 6a2b0aa | 2010-07-13 20:58:03 +0000 | [diff] [blame] | 11578 | Handle<SharedFunctionInfo> shared(context->closure()->shared()); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 11579 | Handle<ScopeInfo> scope_info(shared->scope_info()); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11580 | |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 11581 | // Allocate and initialize a JSObject with all the content of this function |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11582 | // closure. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 11583 | Handle<JSObject> closure_scope = |
| 11584 | isolate->factory()->NewJSObject(isolate->object_function()); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11585 | |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11586 | // Fill all context locals to the context extension. |
jkummerow@chromium.org | d8a3a14 | 2013-10-03 12:15:05 +0000 | [diff] [blame] | 11587 | if (!ScopeInfo::CopyContextLocalsToScopeObject( |
| 11588 | scope_info, context, closure_scope)) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 11589 | return Handle<JSObject>(); |
| 11590 | } |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11591 | |
| 11592 | // Finally copy any properties from the function context extension. This will |
| 11593 | // be variables introduced by eval. |
| 11594 | if (context->has_extension()) { |
| 11595 | Handle<JSObject> ext(JSObject::cast(context->extension())); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 11596 | bool threw = false; |
| 11597 | Handle<FixedArray> keys = |
| 11598 | GetKeysInFixedArrayFor(ext, INCLUDE_PROTOS, &threw); |
| 11599 | if (threw) return Handle<JSObject>(); |
| 11600 | |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11601 | for (int i = 0; i < keys->length(); i++) { |
| 11602 | // Names of variables introduced by eval are strings. |
| 11603 | ASSERT(keys->get(i)->IsString()); |
| 11604 | Handle<String> key(String::cast(keys->get(i))); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 11605 | RETURN_IF_EMPTY_HANDLE_VALUE( |
| 11606 | isolate, |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 11607 | Runtime::SetObjectProperty(isolate, closure_scope, key, |
| 11608 | GetProperty(isolate, ext, key), |
| 11609 | NONE, |
| 11610 | kNonStrictMode), |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 11611 | Handle<JSObject>()); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11612 | } |
| 11613 | } |
| 11614 | |
| 11615 | return closure_scope; |
| 11616 | } |
| 11617 | |
| 11618 | |
mmassi@chromium.org | 49a4467 | 2012-12-04 13:52:03 +0000 | [diff] [blame] | 11619 | // This method copies structure of MaterializeClosure method above. |
| 11620 | static bool SetClosureVariableValue(Isolate* isolate, |
| 11621 | Handle<Context> context, |
| 11622 | Handle<String> variable_name, |
| 11623 | Handle<Object> new_value) { |
| 11624 | ASSERT(context->IsFunctionContext()); |
| 11625 | |
| 11626 | Handle<SharedFunctionInfo> shared(context->closure()->shared()); |
| 11627 | Handle<ScopeInfo> scope_info(shared->scope_info()); |
| 11628 | |
| 11629 | // Context locals to the context extension. |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 11630 | if (SetContextLocalValue( |
| 11631 | isolate, scope_info, context, variable_name, new_value)) { |
| 11632 | return true; |
mmassi@chromium.org | 49a4467 | 2012-12-04 13:52:03 +0000 | [diff] [blame] | 11633 | } |
| 11634 | |
| 11635 | // Properties from the function context extension. This will |
| 11636 | // be variables introduced by eval. |
| 11637 | if (context->has_extension()) { |
| 11638 | Handle<JSObject> ext(JSObject::cast(context->extension())); |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 11639 | if (JSReceiver::HasProperty(ext, variable_name)) { |
mmassi@chromium.org | 49a4467 | 2012-12-04 13:52:03 +0000 | [diff] [blame] | 11640 | // We don't expect this to do anything except replacing property value. |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 11641 | Runtime::SetObjectProperty(isolate, ext, variable_name, new_value, |
| 11642 | NONE, |
| 11643 | kNonStrictMode); |
mmassi@chromium.org | 49a4467 | 2012-12-04 13:52:03 +0000 | [diff] [blame] | 11644 | return true; |
| 11645 | } |
| 11646 | } |
| 11647 | |
| 11648 | return false; |
| 11649 | } |
| 11650 | |
| 11651 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 11652 | // Create a plain JSObject which materializes the scope for the specified |
| 11653 | // catch context. |
| 11654 | static Handle<JSObject> MaterializeCatchScope(Isolate* isolate, |
| 11655 | Handle<Context> context) { |
| 11656 | ASSERT(context->IsCatchContext()); |
| 11657 | Handle<String> name(String::cast(context->extension())); |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 11658 | Handle<Object> thrown_object(context->get(Context::THROWN_OBJECT_INDEX), |
| 11659 | isolate); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 11660 | Handle<JSObject> catch_scope = |
| 11661 | isolate->factory()->NewJSObject(isolate->object_function()); |
| 11662 | RETURN_IF_EMPTY_HANDLE_VALUE( |
| 11663 | isolate, |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 11664 | Runtime::SetObjectProperty(isolate, catch_scope, name, thrown_object, |
| 11665 | NONE, |
| 11666 | kNonStrictMode), |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 11667 | Handle<JSObject>()); |
| 11668 | return catch_scope; |
| 11669 | } |
| 11670 | |
| 11671 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 11672 | static bool SetCatchVariableValue(Isolate* isolate, |
| 11673 | Handle<Context> context, |
| 11674 | Handle<String> variable_name, |
| 11675 | Handle<Object> new_value) { |
| 11676 | ASSERT(context->IsCatchContext()); |
| 11677 | Handle<String> name(String::cast(context->extension())); |
| 11678 | if (!name->Equals(*variable_name)) { |
| 11679 | return false; |
| 11680 | } |
| 11681 | context->set(Context::THROWN_OBJECT_INDEX, *new_value); |
| 11682 | return true; |
| 11683 | } |
| 11684 | |
| 11685 | |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 11686 | // Create a plain JSObject which materializes the block scope for the specified |
| 11687 | // block context. |
| 11688 | static Handle<JSObject> MaterializeBlockScope( |
| 11689 | Isolate* isolate, |
| 11690 | Handle<Context> context) { |
| 11691 | ASSERT(context->IsBlockContext()); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 11692 | Handle<ScopeInfo> scope_info(ScopeInfo::cast(context->extension())); |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 11693 | |
| 11694 | // Allocate and initialize a JSObject with all the arguments, stack locals |
| 11695 | // heap locals and extension properties of the debugged function. |
| 11696 | Handle<JSObject> block_scope = |
| 11697 | isolate->factory()->NewJSObject(isolate->object_function()); |
| 11698 | |
| 11699 | // Fill all context locals. |
jkummerow@chromium.org | d8a3a14 | 2013-10-03 12:15:05 +0000 | [diff] [blame] | 11700 | if (!ScopeInfo::CopyContextLocalsToScopeObject( |
| 11701 | scope_info, context, block_scope)) { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 11702 | return Handle<JSObject>(); |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 11703 | } |
| 11704 | |
| 11705 | return block_scope; |
| 11706 | } |
| 11707 | |
| 11708 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 11709 | // Create a plain JSObject which materializes the module scope for the specified |
| 11710 | // module context. |
| 11711 | static Handle<JSObject> MaterializeModuleScope( |
| 11712 | Isolate* isolate, |
| 11713 | Handle<Context> context) { |
| 11714 | ASSERT(context->IsModuleContext()); |
| 11715 | Handle<ScopeInfo> scope_info(ScopeInfo::cast(context->extension())); |
| 11716 | |
| 11717 | // Allocate and initialize a JSObject with all the members of the debugged |
| 11718 | // module. |
| 11719 | Handle<JSObject> module_scope = |
| 11720 | isolate->factory()->NewJSObject(isolate->object_function()); |
| 11721 | |
| 11722 | // Fill all context locals. |
jkummerow@chromium.org | d8a3a14 | 2013-10-03 12:15:05 +0000 | [diff] [blame] | 11723 | if (!ScopeInfo::CopyContextLocalsToScopeObject( |
| 11724 | scope_info, context, module_scope)) { |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 11725 | return Handle<JSObject>(); |
| 11726 | } |
| 11727 | |
| 11728 | return module_scope; |
| 11729 | } |
| 11730 | |
| 11731 | |
danno@chromium.org | 1044a4d | 2012-04-30 12:34:39 +0000 | [diff] [blame] | 11732 | // Iterate over the actual scopes visible from a stack frame or from a closure. |
| 11733 | // The iteration proceeds from the innermost visible nested scope outwards. |
| 11734 | // All scopes are backed by an actual context except the local scope, |
| 11735 | // which is inserted "artificially" in the context chain. |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11736 | class ScopeIterator { |
| 11737 | public: |
| 11738 | enum ScopeType { |
| 11739 | ScopeTypeGlobal = 0, |
| 11740 | ScopeTypeLocal, |
| 11741 | ScopeTypeWith, |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 11742 | ScopeTypeClosure, |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 11743 | ScopeTypeCatch, |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 11744 | ScopeTypeBlock, |
| 11745 | ScopeTypeModule |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11746 | }; |
| 11747 | |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 11748 | ScopeIterator(Isolate* isolate, |
| 11749 | JavaScriptFrame* frame, |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 11750 | int inlined_jsframe_index) |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 11751 | : isolate_(isolate), |
| 11752 | frame_(frame), |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 11753 | inlined_jsframe_index_(inlined_jsframe_index), |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 11754 | function_(frame->function()), |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11755 | context_(Context::cast(frame->context())), |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 11756 | nested_scope_chain_(4), |
| 11757 | failed_(false) { |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11758 | |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 11759 | // Catch the case when the debugger stops in an internal function. |
| 11760 | Handle<SharedFunctionInfo> shared_info(function_->shared()); |
| 11761 | Handle<ScopeInfo> scope_info(shared_info->scope_info()); |
| 11762 | if (shared_info->script() == isolate->heap()->undefined_value()) { |
| 11763 | while (context_->closure() == *function_) { |
| 11764 | context_ = Handle<Context>(context_->previous(), isolate_); |
| 11765 | } |
| 11766 | return; |
| 11767 | } |
| 11768 | |
| 11769 | // Get the debug info (create it if it does not exist). |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 11770 | if (!isolate->debug()->EnsureDebugInfo(shared_info, function_)) { |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 11771 | // Return if ensuring debug info failed. |
| 11772 | return; |
| 11773 | } |
| 11774 | Handle<DebugInfo> debug_info = Debug::GetDebugInfo(shared_info); |
| 11775 | |
| 11776 | // Find the break point where execution has stopped. |
| 11777 | BreakLocationIterator break_location_iterator(debug_info, |
| 11778 | ALL_BREAK_LOCATIONS); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 11779 | // pc points to the instruction after the current one, possibly a break |
| 11780 | // location as well. So the "- 1" to exclude it from the search. |
| 11781 | break_location_iterator.FindBreakLocationFromAddress(frame->pc() - 1); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 11782 | if (break_location_iterator.IsExit()) { |
| 11783 | // We are within the return sequence. At the momemt it is not possible to |
| 11784 | // get a source position which is consistent with the current scope chain. |
| 11785 | // Thus all nested with, catch and block contexts are skipped and we only |
| 11786 | // provide the function scope. |
| 11787 | if (scope_info->HasContext()) { |
| 11788 | context_ = Handle<Context>(context_->declaration_context(), isolate_); |
| 11789 | } else { |
| 11790 | while (context_->closure() == *function_) { |
| 11791 | context_ = Handle<Context>(context_->previous(), isolate_); |
| 11792 | } |
| 11793 | } |
ulan@chromium.org | dfe5307 | 2013-06-06 14:14:51 +0000 | [diff] [blame] | 11794 | if (scope_info->scope_type() != EVAL_SCOPE) { |
| 11795 | nested_scope_chain_.Add(scope_info); |
| 11796 | } |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 11797 | } else { |
| 11798 | // Reparse the code and analyze the scopes. |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 11799 | Handle<Script> script(Script::cast(shared_info->script())); |
| 11800 | Scope* scope = NULL; |
| 11801 | |
| 11802 | // Check whether we are in global, eval or function code. |
| 11803 | Handle<ScopeInfo> scope_info(shared_info->scope_info()); |
ulan@chromium.org | dfe5307 | 2013-06-06 14:14:51 +0000 | [diff] [blame] | 11804 | if (scope_info->scope_type() != FUNCTION_SCOPE) { |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 11805 | // Global or eval code. |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 11806 | CompilationInfoWithZone info(script); |
ulan@chromium.org | dfe5307 | 2013-06-06 14:14:51 +0000 | [diff] [blame] | 11807 | if (scope_info->scope_type() == GLOBAL_SCOPE) { |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 11808 | info.MarkAsGlobal(); |
| 11809 | } else { |
ulan@chromium.org | dfe5307 | 2013-06-06 14:14:51 +0000 | [diff] [blame] | 11810 | ASSERT(scope_info->scope_type() == EVAL_SCOPE); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 11811 | info.MarkAsEval(); |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 11812 | info.SetContext(Handle<Context>(function_->context())); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 11813 | } |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 11814 | if (Parser::Parse(&info) && Scope::Analyze(&info)) { |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 11815 | scope = info.function()->scope(); |
| 11816 | } |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 11817 | RetrieveScopeChain(scope, shared_info); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 11818 | } else { |
| 11819 | // Function code |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 11820 | CompilationInfoWithZone info(shared_info); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 11821 | if (Parser::Parse(&info) && Scope::Analyze(&info)) { |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 11822 | scope = info.function()->scope(); |
| 11823 | } |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 11824 | RetrieveScopeChain(scope, shared_info); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 11825 | } |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11826 | } |
| 11827 | } |
| 11828 | |
danno@chromium.org | 1044a4d | 2012-04-30 12:34:39 +0000 | [diff] [blame] | 11829 | ScopeIterator(Isolate* isolate, |
| 11830 | Handle<JSFunction> function) |
| 11831 | : isolate_(isolate), |
| 11832 | frame_(NULL), |
| 11833 | inlined_jsframe_index_(0), |
| 11834 | function_(function), |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 11835 | context_(function->context()), |
| 11836 | failed_(false) { |
danno@chromium.org | 1044a4d | 2012-04-30 12:34:39 +0000 | [diff] [blame] | 11837 | if (function->IsBuiltin()) { |
| 11838 | context_ = Handle<Context>(); |
| 11839 | } |
| 11840 | } |
| 11841 | |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11842 | // More scopes? |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 11843 | bool Done() { |
| 11844 | ASSERT(!failed_); |
| 11845 | return context_.is_null(); |
| 11846 | } |
| 11847 | |
| 11848 | bool Failed() { return failed_; } |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11849 | |
| 11850 | // Move to the next scope. |
| 11851 | void Next() { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 11852 | ASSERT(!failed_); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 11853 | ScopeType scope_type = Type(); |
| 11854 | if (scope_type == ScopeTypeGlobal) { |
| 11855 | // The global scope is always the last in the chain. |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 11856 | ASSERT(context_->IsNativeContext()); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11857 | context_ = Handle<Context>(); |
| 11858 | return; |
| 11859 | } |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 11860 | if (nested_scope_chain_.is_empty()) { |
| 11861 | context_ = Handle<Context>(context_->previous(), isolate_); |
| 11862 | } else { |
| 11863 | if (nested_scope_chain_.last()->HasContext()) { |
| 11864 | ASSERT(context_->previous() != NULL); |
| 11865 | context_ = Handle<Context>(context_->previous(), isolate_); |
| 11866 | } |
| 11867 | nested_scope_chain_.RemoveLast(); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11868 | } |
| 11869 | } |
| 11870 | |
| 11871 | // Return the type of the current scope. |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 11872 | ScopeType Type() { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 11873 | ASSERT(!failed_); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 11874 | if (!nested_scope_chain_.is_empty()) { |
| 11875 | Handle<ScopeInfo> scope_info = nested_scope_chain_.last(); |
ulan@chromium.org | dfe5307 | 2013-06-06 14:14:51 +0000 | [diff] [blame] | 11876 | switch (scope_info->scope_type()) { |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 11877 | case FUNCTION_SCOPE: |
| 11878 | ASSERT(context_->IsFunctionContext() || |
| 11879 | !scope_info->HasContext()); |
| 11880 | return ScopeTypeLocal; |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 11881 | case MODULE_SCOPE: |
| 11882 | ASSERT(context_->IsModuleContext()); |
| 11883 | return ScopeTypeModule; |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 11884 | case GLOBAL_SCOPE: |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 11885 | ASSERT(context_->IsNativeContext()); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 11886 | return ScopeTypeGlobal; |
| 11887 | case WITH_SCOPE: |
| 11888 | ASSERT(context_->IsWithContext()); |
| 11889 | return ScopeTypeWith; |
| 11890 | case CATCH_SCOPE: |
| 11891 | ASSERT(context_->IsCatchContext()); |
| 11892 | return ScopeTypeCatch; |
| 11893 | case BLOCK_SCOPE: |
| 11894 | ASSERT(!scope_info->HasContext() || |
| 11895 | context_->IsBlockContext()); |
| 11896 | return ScopeTypeBlock; |
| 11897 | case EVAL_SCOPE: |
| 11898 | UNREACHABLE(); |
| 11899 | } |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11900 | } |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 11901 | if (context_->IsNativeContext()) { |
| 11902 | ASSERT(context_->global_object()->IsGlobalObject()); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11903 | return ScopeTypeGlobal; |
| 11904 | } |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 11905 | if (context_->IsFunctionContext()) { |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11906 | return ScopeTypeClosure; |
| 11907 | } |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 11908 | if (context_->IsCatchContext()) { |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 11909 | return ScopeTypeCatch; |
| 11910 | } |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 11911 | if (context_->IsBlockContext()) { |
| 11912 | return ScopeTypeBlock; |
| 11913 | } |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 11914 | if (context_->IsModuleContext()) { |
| 11915 | return ScopeTypeModule; |
| 11916 | } |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 11917 | ASSERT(context_->IsWithContext()); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11918 | return ScopeTypeWith; |
| 11919 | } |
| 11920 | |
| 11921 | // Return the JavaScript object with the content of the current scope. |
| 11922 | Handle<JSObject> ScopeObject() { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 11923 | ASSERT(!failed_); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11924 | switch (Type()) { |
| 11925 | case ScopeIterator::ScopeTypeGlobal: |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 11926 | return Handle<JSObject>(CurrentContext()->global_object()); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11927 | case ScopeIterator::ScopeTypeLocal: |
| 11928 | // Materialize the content of the local scope into a JSObject. |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 11929 | ASSERT(nested_scope_chain_.length() == 1); |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 11930 | return MaterializeLocalScope(isolate_, frame_, inlined_jsframe_index_); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11931 | case ScopeIterator::ScopeTypeWith: |
| 11932 | // Return the with object. |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 11933 | return Handle<JSObject>(JSObject::cast(CurrentContext()->extension())); |
| 11934 | case ScopeIterator::ScopeTypeCatch: |
| 11935 | return MaterializeCatchScope(isolate_, CurrentContext()); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11936 | case ScopeIterator::ScopeTypeClosure: |
| 11937 | // Materialize the content of the closure scope into a JSObject. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 11938 | return MaterializeClosure(isolate_, CurrentContext()); |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 11939 | case ScopeIterator::ScopeTypeBlock: |
| 11940 | return MaterializeBlockScope(isolate_, CurrentContext()); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 11941 | case ScopeIterator::ScopeTypeModule: |
| 11942 | return MaterializeModuleScope(isolate_, CurrentContext()); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11943 | } |
| 11944 | UNREACHABLE(); |
| 11945 | return Handle<JSObject>(); |
| 11946 | } |
| 11947 | |
mmassi@chromium.org | 49a4467 | 2012-12-04 13:52:03 +0000 | [diff] [blame] | 11948 | bool SetVariableValue(Handle<String> variable_name, |
| 11949 | Handle<Object> new_value) { |
| 11950 | ASSERT(!failed_); |
| 11951 | switch (Type()) { |
| 11952 | case ScopeIterator::ScopeTypeGlobal: |
| 11953 | break; |
| 11954 | case ScopeIterator::ScopeTypeLocal: |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 11955 | return SetLocalVariableValue(isolate_, frame_, inlined_jsframe_index_, |
| 11956 | variable_name, new_value); |
mmassi@chromium.org | 49a4467 | 2012-12-04 13:52:03 +0000 | [diff] [blame] | 11957 | case ScopeIterator::ScopeTypeWith: |
| 11958 | break; |
| 11959 | case ScopeIterator::ScopeTypeCatch: |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 11960 | return SetCatchVariableValue(isolate_, CurrentContext(), |
| 11961 | variable_name, new_value); |
mmassi@chromium.org | 49a4467 | 2012-12-04 13:52:03 +0000 | [diff] [blame] | 11962 | case ScopeIterator::ScopeTypeClosure: |
| 11963 | return SetClosureVariableValue(isolate_, CurrentContext(), |
| 11964 | variable_name, new_value); |
| 11965 | case ScopeIterator::ScopeTypeBlock: |
| 11966 | // TODO(2399): should we implement it? |
| 11967 | break; |
| 11968 | case ScopeIterator::ScopeTypeModule: |
| 11969 | // TODO(2399): should we implement it? |
| 11970 | break; |
| 11971 | } |
| 11972 | return false; |
| 11973 | } |
| 11974 | |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 11975 | Handle<ScopeInfo> CurrentScopeInfo() { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 11976 | ASSERT(!failed_); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 11977 | if (!nested_scope_chain_.is_empty()) { |
| 11978 | return nested_scope_chain_.last(); |
| 11979 | } else if (context_->IsBlockContext()) { |
| 11980 | return Handle<ScopeInfo>(ScopeInfo::cast(context_->extension())); |
| 11981 | } else if (context_->IsFunctionContext()) { |
| 11982 | return Handle<ScopeInfo>(context_->closure()->shared()->scope_info()); |
| 11983 | } |
| 11984 | return Handle<ScopeInfo>::null(); |
| 11985 | } |
| 11986 | |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11987 | // Return the context for this scope. For the local context there might not |
| 11988 | // be an actual context. |
| 11989 | Handle<Context> CurrentContext() { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 11990 | ASSERT(!failed_); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 11991 | if (Type() == ScopeTypeGlobal || |
| 11992 | nested_scope_chain_.is_empty()) { |
| 11993 | return context_; |
| 11994 | } else if (nested_scope_chain_.last()->HasContext()) { |
| 11995 | return context_; |
| 11996 | } else { |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11997 | return Handle<Context>(); |
| 11998 | } |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 11999 | } |
| 12000 | |
| 12001 | #ifdef DEBUG |
| 12002 | // Debug print of the content of the current scope. |
| 12003 | void DebugPrint() { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 12004 | ASSERT(!failed_); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12005 | switch (Type()) { |
| 12006 | case ScopeIterator::ScopeTypeGlobal: |
| 12007 | PrintF("Global:\n"); |
| 12008 | CurrentContext()->Print(); |
| 12009 | break; |
| 12010 | |
| 12011 | case ScopeIterator::ScopeTypeLocal: { |
| 12012 | PrintF("Local:\n"); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 12013 | function_->shared()->scope_info()->Print(); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12014 | if (!CurrentContext().is_null()) { |
| 12015 | CurrentContext()->Print(); |
| 12016 | if (CurrentContext()->has_extension()) { |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 12017 | Handle<Object> extension(CurrentContext()->extension(), isolate_); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12018 | if (extension->IsJSContextExtensionObject()) { |
| 12019 | extension->Print(); |
| 12020 | } |
| 12021 | } |
| 12022 | } |
| 12023 | break; |
| 12024 | } |
| 12025 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 12026 | case ScopeIterator::ScopeTypeWith: |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12027 | PrintF("With:\n"); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 12028 | CurrentContext()->extension()->Print(); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12029 | break; |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12030 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 12031 | case ScopeIterator::ScopeTypeCatch: |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 12032 | PrintF("Catch:\n"); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 12033 | CurrentContext()->extension()->Print(); |
| 12034 | CurrentContext()->get(Context::THROWN_OBJECT_INDEX)->Print(); |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 12035 | break; |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 12036 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 12037 | case ScopeIterator::ScopeTypeClosure: |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12038 | PrintF("Closure:\n"); |
| 12039 | CurrentContext()->Print(); |
| 12040 | if (CurrentContext()->has_extension()) { |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 12041 | Handle<Object> extension(CurrentContext()->extension(), isolate_); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12042 | if (extension->IsJSContextExtensionObject()) { |
| 12043 | extension->Print(); |
| 12044 | } |
| 12045 | } |
| 12046 | break; |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12047 | |
| 12048 | default: |
| 12049 | UNREACHABLE(); |
| 12050 | } |
| 12051 | PrintF("\n"); |
| 12052 | } |
| 12053 | #endif |
| 12054 | |
| 12055 | private: |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12056 | Isolate* isolate_; |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12057 | JavaScriptFrame* frame_; |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 12058 | int inlined_jsframe_index_; |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12059 | Handle<JSFunction> function_; |
| 12060 | Handle<Context> context_; |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 12061 | List<Handle<ScopeInfo> > nested_scope_chain_; |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 12062 | bool failed_; |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12063 | |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 12064 | void RetrieveScopeChain(Scope* scope, |
| 12065 | Handle<SharedFunctionInfo> shared_info) { |
| 12066 | if (scope != NULL) { |
| 12067 | int source_position = shared_info->code()->SourcePosition(frame_->pc()); |
| 12068 | scope->GetNestedScopeChain(&nested_scope_chain_, source_position); |
| 12069 | } else { |
| 12070 | // A failed reparse indicates that the preparser has diverged from the |
| 12071 | // parser or that the preparse data given to the initial parse has been |
| 12072 | // faulty. We fail in debug mode but in release mode we only provide the |
| 12073 | // information we get from the context chain but nothing about |
| 12074 | // completely stack allocated scopes or stack allocated locals. |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 12075 | // Or it could be due to stack overflow. |
| 12076 | ASSERT(isolate_->has_pending_exception()); |
| 12077 | failed_ = true; |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 12078 | } |
| 12079 | } |
| 12080 | |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12081 | DISALLOW_IMPLICIT_CONSTRUCTORS(ScopeIterator); |
| 12082 | }; |
| 12083 | |
| 12084 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 12085 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetScopeCount) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12086 | HandleScope scope(isolate); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12087 | ASSERT(args.length() == 2); |
| 12088 | |
| 12089 | // Check arguments. |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 12090 | Object* check; |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 12091 | { MaybeObject* maybe_check = Runtime_CheckExecutionState( |
| 12092 | RUNTIME_ARGUMENTS(isolate, args)); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 12093 | if (!maybe_check->ToObject(&check)) return maybe_check; |
| 12094 | } |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 12095 | CONVERT_SMI_ARG_CHECKED(wrapped_id, 1); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12096 | |
| 12097 | // Get the frame where the debugging is performed. |
| 12098 | StackFrame::Id id = UnwrapFrameId(wrapped_id); |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 12099 | JavaScriptFrameIterator it(isolate, id); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12100 | JavaScriptFrame* frame = it.frame(); |
| 12101 | |
| 12102 | // Count the visible scopes. |
| 12103 | int n = 0; |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 12104 | for (ScopeIterator it(isolate, frame, 0); |
| 12105 | !it.Done(); |
| 12106 | it.Next()) { |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12107 | n++; |
| 12108 | } |
| 12109 | |
| 12110 | return Smi::FromInt(n); |
| 12111 | } |
| 12112 | |
| 12113 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 12114 | // Returns the list of step-in positions (text offset) in a function of the |
| 12115 | // stack frame in a range from the current debug break position to the end |
| 12116 | // of the corresponding statement. |
| 12117 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetStepInPositions) { |
| 12118 | HandleScope scope(isolate); |
| 12119 | ASSERT(args.length() == 2); |
| 12120 | |
| 12121 | // Check arguments. |
| 12122 | Object* check; |
| 12123 | { MaybeObject* maybe_check = Runtime_CheckExecutionState( |
| 12124 | RUNTIME_ARGUMENTS(isolate, args)); |
| 12125 | if (!maybe_check->ToObject(&check)) return maybe_check; |
| 12126 | } |
| 12127 | CONVERT_SMI_ARG_CHECKED(wrapped_id, 1); |
| 12128 | |
| 12129 | // Get the frame where the debugging is performed. |
| 12130 | StackFrame::Id id = UnwrapFrameId(wrapped_id); |
| 12131 | JavaScriptFrameIterator frame_it(isolate, id); |
mstarzinger@chromium.org | e900018 | 2013-09-03 11:25:39 +0000 | [diff] [blame] | 12132 | RUNTIME_ASSERT(!frame_it.done()); |
| 12133 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 12134 | JavaScriptFrame* frame = frame_it.frame(); |
| 12135 | |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 12136 | Handle<JSFunction> fun = |
| 12137 | Handle<JSFunction>(frame->function()); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 12138 | Handle<SharedFunctionInfo> shared = |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 12139 | Handle<SharedFunctionInfo>(fun->shared()); |
| 12140 | |
| 12141 | if (!isolate->debug()->EnsureDebugInfo(shared, fun)) { |
| 12142 | return isolate->heap()->undefined_value(); |
| 12143 | } |
| 12144 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 12145 | Handle<DebugInfo> debug_info = Debug::GetDebugInfo(shared); |
| 12146 | |
| 12147 | int len = 0; |
| 12148 | Handle<JSArray> array(isolate->factory()->NewJSArray(10)); |
| 12149 | // Find the break point where execution has stopped. |
| 12150 | BreakLocationIterator break_location_iterator(debug_info, |
| 12151 | ALL_BREAK_LOCATIONS); |
| 12152 | |
mstarzinger@chromium.org | e900018 | 2013-09-03 11:25:39 +0000 | [diff] [blame] | 12153 | break_location_iterator.FindBreakLocationFromAddress(frame->pc() - 1); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 12154 | int current_statement_pos = break_location_iterator.statement_position(); |
| 12155 | |
| 12156 | while (!break_location_iterator.Done()) { |
mstarzinger@chromium.org | e900018 | 2013-09-03 11:25:39 +0000 | [diff] [blame] | 12157 | bool accept; |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 12158 | if (break_location_iterator.pc() > frame->pc()) { |
mstarzinger@chromium.org | e900018 | 2013-09-03 11:25:39 +0000 | [diff] [blame] | 12159 | accept = true; |
| 12160 | } else { |
| 12161 | StackFrame::Id break_frame_id = isolate->debug()->break_frame_id(); |
| 12162 | // The break point is near our pc. Could be a step-in possibility, |
| 12163 | // that is currently taken by active debugger call. |
| 12164 | if (break_frame_id == StackFrame::NO_ID) { |
| 12165 | // We are not stepping. |
| 12166 | accept = false; |
| 12167 | } else { |
| 12168 | JavaScriptFrameIterator additional_frame_it(isolate, break_frame_id); |
| 12169 | // If our frame is a top frame and we are stepping, we can do step-in |
| 12170 | // at this place. |
| 12171 | accept = additional_frame_it.frame()->id() == id; |
| 12172 | } |
| 12173 | } |
| 12174 | if (accept) { |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 12175 | if (break_location_iterator.IsStepInLocation(isolate)) { |
| 12176 | Smi* position_value = Smi::FromInt(break_location_iterator.position()); |
| 12177 | JSObject::SetElement(array, len, |
| 12178 | Handle<Object>(position_value, isolate), |
| 12179 | NONE, kNonStrictMode); |
| 12180 | len++; |
| 12181 | } |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 12182 | } |
| 12183 | // Advance iterator. |
| 12184 | break_location_iterator.Next(); |
| 12185 | if (current_statement_pos != |
| 12186 | break_location_iterator.statement_position()) { |
| 12187 | break; |
| 12188 | } |
| 12189 | } |
| 12190 | return *array; |
| 12191 | } |
| 12192 | |
| 12193 | |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12194 | static const int kScopeDetailsTypeIndex = 0; |
| 12195 | static const int kScopeDetailsObjectIndex = 1; |
| 12196 | static const int kScopeDetailsSize = 2; |
| 12197 | |
danno@chromium.org | 1044a4d | 2012-04-30 12:34:39 +0000 | [diff] [blame] | 12198 | |
| 12199 | static MaybeObject* MaterializeScopeDetails(Isolate* isolate, |
| 12200 | ScopeIterator* it) { |
| 12201 | // Calculate the size of the result. |
| 12202 | int details_size = kScopeDetailsSize; |
| 12203 | Handle<FixedArray> details = isolate->factory()->NewFixedArray(details_size); |
| 12204 | |
| 12205 | // Fill in scope details. |
| 12206 | details->set(kScopeDetailsTypeIndex, Smi::FromInt(it->Type())); |
| 12207 | Handle<JSObject> scope_object = it->ScopeObject(); |
| 12208 | RETURN_IF_EMPTY_HANDLE(isolate, scope_object); |
| 12209 | details->set(kScopeDetailsObjectIndex, *scope_object); |
| 12210 | |
| 12211 | return *isolate->factory()->NewJSArrayWithElements(details); |
| 12212 | } |
| 12213 | |
mstarzinger@chromium.org | e0e1b0d | 2013-07-08 08:38:06 +0000 | [diff] [blame] | 12214 | |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12215 | // Return an array with scope details |
| 12216 | // args[0]: number: break id |
| 12217 | // args[1]: number: frame index |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 12218 | // args[2]: number: inlined frame index |
| 12219 | // args[3]: number: scope index |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12220 | // |
| 12221 | // The array returned contains the following information: |
| 12222 | // 0: Scope type |
| 12223 | // 1: Scope object |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 12224 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetScopeDetails) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12225 | HandleScope scope(isolate); |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 12226 | ASSERT(args.length() == 4); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12227 | |
| 12228 | // Check arguments. |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 12229 | Object* check; |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 12230 | { MaybeObject* maybe_check = Runtime_CheckExecutionState( |
| 12231 | RUNTIME_ARGUMENTS(isolate, args)); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 12232 | if (!maybe_check->ToObject(&check)) return maybe_check; |
| 12233 | } |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 12234 | CONVERT_SMI_ARG_CHECKED(wrapped_id, 1); |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 12235 | CONVERT_NUMBER_CHECKED(int, inlined_jsframe_index, Int32, args[2]); |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 12236 | CONVERT_NUMBER_CHECKED(int, index, Int32, args[3]); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12237 | |
| 12238 | // Get the frame where the debugging is performed. |
| 12239 | StackFrame::Id id = UnwrapFrameId(wrapped_id); |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 12240 | JavaScriptFrameIterator frame_it(isolate, id); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12241 | JavaScriptFrame* frame = frame_it.frame(); |
| 12242 | |
| 12243 | // Find the requested scope. |
| 12244 | int n = 0; |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 12245 | ScopeIterator it(isolate, frame, inlined_jsframe_index); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12246 | for (; !it.Done() && n < index; it.Next()) { |
| 12247 | n++; |
| 12248 | } |
| 12249 | if (it.Done()) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12250 | return isolate->heap()->undefined_value(); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12251 | } |
danno@chromium.org | 1044a4d | 2012-04-30 12:34:39 +0000 | [diff] [blame] | 12252 | return MaterializeScopeDetails(isolate, &it); |
| 12253 | } |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12254 | |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12255 | |
danno@chromium.org | 1044a4d | 2012-04-30 12:34:39 +0000 | [diff] [blame] | 12256 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetFunctionScopeCount) { |
| 12257 | HandleScope scope(isolate); |
| 12258 | ASSERT(args.length() == 1); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12259 | |
danno@chromium.org | 1044a4d | 2012-04-30 12:34:39 +0000 | [diff] [blame] | 12260 | // Check arguments. |
| 12261 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, fun, 0); |
| 12262 | |
| 12263 | // Count the visible scopes. |
| 12264 | int n = 0; |
| 12265 | for (ScopeIterator it(isolate, fun); !it.Done(); it.Next()) { |
| 12266 | n++; |
| 12267 | } |
| 12268 | |
| 12269 | return Smi::FromInt(n); |
| 12270 | } |
| 12271 | |
| 12272 | |
| 12273 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetFunctionScopeDetails) { |
| 12274 | HandleScope scope(isolate); |
| 12275 | ASSERT(args.length() == 2); |
| 12276 | |
| 12277 | // Check arguments. |
| 12278 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, fun, 0); |
| 12279 | CONVERT_NUMBER_CHECKED(int, index, Int32, args[1]); |
| 12280 | |
| 12281 | // Find the requested scope. |
| 12282 | int n = 0; |
| 12283 | ScopeIterator it(isolate, fun); |
| 12284 | for (; !it.Done() && n < index; it.Next()) { |
| 12285 | n++; |
| 12286 | } |
| 12287 | if (it.Done()) { |
| 12288 | return isolate->heap()->undefined_value(); |
| 12289 | } |
| 12290 | |
| 12291 | return MaterializeScopeDetails(isolate, &it); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12292 | } |
| 12293 | |
| 12294 | |
mmassi@chromium.org | 49a4467 | 2012-12-04 13:52:03 +0000 | [diff] [blame] | 12295 | static bool SetScopeVariableValue(ScopeIterator* it, int index, |
| 12296 | Handle<String> variable_name, |
| 12297 | Handle<Object> new_value) { |
| 12298 | for (int n = 0; !it->Done() && n < index; it->Next()) { |
| 12299 | n++; |
| 12300 | } |
| 12301 | if (it->Done()) { |
| 12302 | return false; |
| 12303 | } |
| 12304 | return it->SetVariableValue(variable_name, new_value); |
| 12305 | } |
| 12306 | |
| 12307 | |
| 12308 | // Change variable value in closure or local scope |
| 12309 | // args[0]: number or JsFunction: break id or function |
| 12310 | // args[1]: number: frame index (when arg[0] is break id) |
| 12311 | // args[2]: number: inlined frame index (when arg[0] is break id) |
| 12312 | // args[3]: number: scope index |
| 12313 | // args[4]: string: variable name |
| 12314 | // args[5]: object: new value |
| 12315 | // |
| 12316 | // Return true if success and false otherwise |
| 12317 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SetScopeVariableValue) { |
| 12318 | HandleScope scope(isolate); |
| 12319 | ASSERT(args.length() == 6); |
| 12320 | |
| 12321 | // Check arguments. |
| 12322 | CONVERT_NUMBER_CHECKED(int, index, Int32, args[3]); |
| 12323 | CONVERT_ARG_HANDLE_CHECKED(String, variable_name, 4); |
| 12324 | Handle<Object> new_value = args.at<Object>(5); |
| 12325 | |
| 12326 | bool res; |
| 12327 | if (args[0]->IsNumber()) { |
| 12328 | Object* check; |
| 12329 | { MaybeObject* maybe_check = Runtime_CheckExecutionState( |
| 12330 | RUNTIME_ARGUMENTS(isolate, args)); |
| 12331 | if (!maybe_check->ToObject(&check)) return maybe_check; |
| 12332 | } |
| 12333 | CONVERT_SMI_ARG_CHECKED(wrapped_id, 1); |
| 12334 | CONVERT_NUMBER_CHECKED(int, inlined_jsframe_index, Int32, args[2]); |
| 12335 | |
| 12336 | // Get the frame where the debugging is performed. |
| 12337 | StackFrame::Id id = UnwrapFrameId(wrapped_id); |
| 12338 | JavaScriptFrameIterator frame_it(isolate, id); |
| 12339 | JavaScriptFrame* frame = frame_it.frame(); |
| 12340 | |
| 12341 | ScopeIterator it(isolate, frame, inlined_jsframe_index); |
| 12342 | res = SetScopeVariableValue(&it, index, variable_name, new_value); |
| 12343 | } else { |
| 12344 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, fun, 0); |
| 12345 | ScopeIterator it(isolate, fun); |
| 12346 | res = SetScopeVariableValue(&it, index, variable_name, new_value); |
| 12347 | } |
| 12348 | |
| 12349 | return isolate->heap()->ToBoolean(res); |
| 12350 | } |
| 12351 | |
| 12352 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 12353 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DebugPrintScopes) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12354 | HandleScope scope(isolate); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12355 | ASSERT(args.length() == 0); |
| 12356 | |
| 12357 | #ifdef DEBUG |
| 12358 | // Print the scopes for the top frame. |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 12359 | StackFrameLocator locator(isolate); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12360 | JavaScriptFrame* frame = locator.FindJavaScriptFrame(0); |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 12361 | for (ScopeIterator it(isolate, frame, 0); |
| 12362 | !it.Done(); |
| 12363 | it.Next()) { |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12364 | it.DebugPrint(); |
| 12365 | } |
| 12366 | #endif |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12367 | return isolate->heap()->undefined_value(); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 12368 | } |
| 12369 | |
| 12370 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 12371 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetThreadCount) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12372 | HandleScope scope(isolate); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 12373 | ASSERT(args.length() == 1); |
| 12374 | |
| 12375 | // Check arguments. |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 12376 | Object* result; |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 12377 | { MaybeObject* maybe_result = Runtime_CheckExecutionState( |
| 12378 | RUNTIME_ARGUMENTS(isolate, args)); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 12379 | if (!maybe_result->ToObject(&result)) return maybe_result; |
| 12380 | } |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 12381 | |
| 12382 | // Count all archived V8 threads. |
| 12383 | int n = 0; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12384 | for (ThreadState* thread = |
| 12385 | isolate->thread_manager()->FirstThreadStateInUse(); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 12386 | thread != NULL; |
| 12387 | thread = thread->Next()) { |
| 12388 | n++; |
| 12389 | } |
| 12390 | |
| 12391 | // Total number of threads is current thread and archived threads. |
| 12392 | return Smi::FromInt(n + 1); |
| 12393 | } |
| 12394 | |
| 12395 | |
| 12396 | static const int kThreadDetailsCurrentThreadIndex = 0; |
| 12397 | static const int kThreadDetailsThreadIdIndex = 1; |
| 12398 | static const int kThreadDetailsSize = 2; |
| 12399 | |
| 12400 | // Return an array with thread details |
| 12401 | // args[0]: number: break id |
| 12402 | // args[1]: number: thread index |
| 12403 | // |
| 12404 | // The array returned contains the following information: |
| 12405 | // 0: Is current thread? |
| 12406 | // 1: Thread id |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 12407 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetThreadDetails) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12408 | HandleScope scope(isolate); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 12409 | ASSERT(args.length() == 2); |
| 12410 | |
| 12411 | // Check arguments. |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 12412 | Object* check; |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 12413 | { MaybeObject* maybe_check = Runtime_CheckExecutionState( |
| 12414 | RUNTIME_ARGUMENTS(isolate, args)); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 12415 | if (!maybe_check->ToObject(&check)) return maybe_check; |
| 12416 | } |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 12417 | CONVERT_NUMBER_CHECKED(int, index, Int32, args[1]); |
| 12418 | |
| 12419 | // Allocate array for result. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12420 | Handle<FixedArray> details = |
| 12421 | isolate->factory()->NewFixedArray(kThreadDetailsSize); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 12422 | |
| 12423 | // Thread index 0 is current thread. |
| 12424 | if (index == 0) { |
| 12425 | // Fill the details. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12426 | details->set(kThreadDetailsCurrentThreadIndex, |
| 12427 | isolate->heap()->true_value()); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 12428 | details->set(kThreadDetailsThreadIdIndex, |
ager@chromium.org | a9aa5fa | 2011-04-13 08:46:07 +0000 | [diff] [blame] | 12429 | Smi::FromInt(ThreadId::Current().ToInteger())); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 12430 | } else { |
| 12431 | // Find the thread with the requested index. |
| 12432 | int n = 1; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12433 | ThreadState* thread = |
| 12434 | isolate->thread_manager()->FirstThreadStateInUse(); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 12435 | while (index != n && thread != NULL) { |
| 12436 | thread = thread->Next(); |
| 12437 | n++; |
| 12438 | } |
| 12439 | if (thread == NULL) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12440 | return isolate->heap()->undefined_value(); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 12441 | } |
| 12442 | |
| 12443 | // Fill the details. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12444 | details->set(kThreadDetailsCurrentThreadIndex, |
| 12445 | isolate->heap()->false_value()); |
ager@chromium.org | a9aa5fa | 2011-04-13 08:46:07 +0000 | [diff] [blame] | 12446 | details->set(kThreadDetailsThreadIdIndex, |
| 12447 | Smi::FromInt(thread->id().ToInteger())); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 12448 | } |
| 12449 | |
| 12450 | // Convert to JS array and return. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12451 | return *isolate->factory()->NewJSArrayWithElements(details); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 12452 | } |
| 12453 | |
| 12454 | |
whesse@chromium.org | e90029b | 2010-08-02 11:52:17 +0000 | [diff] [blame] | 12455 | // Sets the disable break state |
| 12456 | // args[0]: disable break state |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 12457 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SetDisableBreak) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12458 | HandleScope scope(isolate); |
whesse@chromium.org | e90029b | 2010-08-02 11:52:17 +0000 | [diff] [blame] | 12459 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 12460 | CONVERT_BOOLEAN_ARG_CHECKED(disable_break, 0); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12461 | isolate->debug()->set_disable_break(disable_break); |
| 12462 | return isolate->heap()->undefined_value(); |
whesse@chromium.org | e90029b | 2010-08-02 11:52:17 +0000 | [diff] [blame] | 12463 | } |
| 12464 | |
| 12465 | |
jkummerow@chromium.org | 93a47f4 | 2013-07-02 14:43:41 +0000 | [diff] [blame] | 12466 | static bool IsPositionAlignmentCodeCorrect(int alignment) { |
| 12467 | return alignment == STATEMENT_ALIGNED || alignment == BREAK_POSITION_ALIGNED; |
| 12468 | } |
| 12469 | |
| 12470 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 12471 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetBreakLocations) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12472 | HandleScope scope(isolate); |
jkummerow@chromium.org | 93a47f4 | 2013-07-02 14:43:41 +0000 | [diff] [blame] | 12473 | ASSERT(args.length() == 2); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12474 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 12475 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, fun, 0); |
jkummerow@chromium.org | 93a47f4 | 2013-07-02 14:43:41 +0000 | [diff] [blame] | 12476 | CONVERT_NUMBER_CHECKED(int32_t, statement_aligned_code, Int32, args[1]); |
| 12477 | |
| 12478 | if (!IsPositionAlignmentCodeCorrect(statement_aligned_code)) { |
| 12479 | return isolate->ThrowIllegalOperation(); |
| 12480 | } |
| 12481 | BreakPositionAlignment alignment = |
| 12482 | static_cast<BreakPositionAlignment>(statement_aligned_code); |
| 12483 | |
ager@chromium.org | 5aa501c | 2009-06-23 07:57:28 +0000 | [diff] [blame] | 12484 | Handle<SharedFunctionInfo> shared(fun->shared()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12485 | // Find the number of break points |
jkummerow@chromium.org | 93a47f4 | 2013-07-02 14:43:41 +0000 | [diff] [blame] | 12486 | Handle<Object> break_locations = |
| 12487 | Debug::GetSourceBreakLocations(shared, alignment); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12488 | if (break_locations->IsUndefined()) return isolate->heap()->undefined_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12489 | // Return array as JS array |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12490 | return *isolate->factory()->NewJSArrayWithElements( |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12491 | Handle<FixedArray>::cast(break_locations)); |
| 12492 | } |
| 12493 | |
| 12494 | |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 12495 | // Set a break point in a function. |
| 12496 | // args[0]: function |
| 12497 | // args[1]: number: break source position (within the function source) |
| 12498 | // args[2]: number: break point object |
| 12499 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SetFunctionBreakPoint) { |
| 12500 | HandleScope scope(isolate); |
| 12501 | ASSERT(args.length() == 3); |
| 12502 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 0); |
| 12503 | CONVERT_NUMBER_CHECKED(int32_t, source_position, Int32, args[1]); |
| 12504 | RUNTIME_ASSERT(source_position >= 0); |
| 12505 | Handle<Object> break_point_object_arg = args.at<Object>(2); |
| 12506 | |
| 12507 | // Set break point. |
| 12508 | isolate->debug()->SetBreakPoint(function, break_point_object_arg, |
| 12509 | &source_position); |
| 12510 | |
| 12511 | return Smi::FromInt(source_position); |
| 12512 | } |
| 12513 | |
| 12514 | |
ricow@chromium.org | 5ad5ace | 2010-06-23 09:06:43 +0000 | [diff] [blame] | 12515 | // Changes the state of a break point in a script and returns source position |
| 12516 | // where break point was set. NOTE: Regarding performance see the NOTE for |
| 12517 | // GetScriptFromScriptData. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12518 | // args[0]: script to set break point in |
| 12519 | // args[1]: number: break source position (within the script source) |
jkummerow@chromium.org | 93a47f4 | 2013-07-02 14:43:41 +0000 | [diff] [blame] | 12520 | // args[2]: number, breakpoint position alignment |
| 12521 | // args[3]: number: break point object |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 12522 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SetScriptBreakPoint) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12523 | HandleScope scope(isolate); |
jkummerow@chromium.org | 93a47f4 | 2013-07-02 14:43:41 +0000 | [diff] [blame] | 12524 | ASSERT(args.length() == 4); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 12525 | CONVERT_ARG_HANDLE_CHECKED(JSValue, wrapper, 0); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12526 | CONVERT_NUMBER_CHECKED(int32_t, source_position, Int32, args[1]); |
| 12527 | RUNTIME_ASSERT(source_position >= 0); |
jkummerow@chromium.org | 93a47f4 | 2013-07-02 14:43:41 +0000 | [diff] [blame] | 12528 | CONVERT_NUMBER_CHECKED(int32_t, statement_aligned_code, Int32, args[2]); |
| 12529 | Handle<Object> break_point_object_arg = args.at<Object>(3); |
| 12530 | |
| 12531 | if (!IsPositionAlignmentCodeCorrect(statement_aligned_code)) { |
| 12532 | return isolate->ThrowIllegalOperation(); |
| 12533 | } |
| 12534 | BreakPositionAlignment alignment = |
| 12535 | static_cast<BreakPositionAlignment>(statement_aligned_code); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12536 | |
| 12537 | // Get the script from the script wrapper. |
| 12538 | RUNTIME_ASSERT(wrapper->value()->IsScript()); |
| 12539 | Handle<Script> script(Script::cast(wrapper->value())); |
| 12540 | |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 12541 | // Set break point. |
| 12542 | if (!isolate->debug()->SetBreakPointForScript(script, break_point_object_arg, |
jkummerow@chromium.org | 93a47f4 | 2013-07-02 14:43:41 +0000 | [diff] [blame] | 12543 | &source_position, |
| 12544 | alignment)) { |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 12545 | return isolate->heap()->undefined_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12546 | } |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 12547 | |
| 12548 | return Smi::FromInt(source_position); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12549 | } |
| 12550 | |
| 12551 | |
| 12552 | // Clear a break point |
| 12553 | // args[0]: number: break point object |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 12554 | RUNTIME_FUNCTION(MaybeObject*, Runtime_ClearBreakPoint) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12555 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12556 | ASSERT(args.length() == 1); |
| 12557 | Handle<Object> break_point_object_arg = args.at<Object>(0); |
| 12558 | |
| 12559 | // Clear break point. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12560 | isolate->debug()->ClearBreakPoint(break_point_object_arg); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12561 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12562 | return isolate->heap()->undefined_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12563 | } |
| 12564 | |
| 12565 | |
fschneider@chromium.org | c20610a | 2010-09-22 09:44:58 +0000 | [diff] [blame] | 12566 | // Change the state of break on exceptions. |
| 12567 | // args[0]: Enum value indicating whether to affect caught/uncaught exceptions. |
| 12568 | // args[1]: Boolean indicating on/off. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 12569 | RUNTIME_FUNCTION(MaybeObject*, Runtime_ChangeBreakOnException) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12570 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12571 | ASSERT(args.length() == 2); |
fschneider@chromium.org | c20610a | 2010-09-22 09:44:58 +0000 | [diff] [blame] | 12572 | RUNTIME_ASSERT(args[0]->IsNumber()); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 12573 | CONVERT_BOOLEAN_ARG_CHECKED(enable, 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12574 | |
fschneider@chromium.org | c20610a | 2010-09-22 09:44:58 +0000 | [diff] [blame] | 12575 | // If the number doesn't match an enum value, the ChangeBreakOnException |
| 12576 | // function will default to affecting caught exceptions. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12577 | ExceptionBreakType type = |
| 12578 | static_cast<ExceptionBreakType>(NumberToUint32(args[0])); |
fschneider@chromium.org | c20610a | 2010-09-22 09:44:58 +0000 | [diff] [blame] | 12579 | // Update break point state. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12580 | isolate->debug()->ChangeBreakOnException(type, enable); |
| 12581 | return isolate->heap()->undefined_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12582 | } |
| 12583 | |
| 12584 | |
fschneider@chromium.org | c20610a | 2010-09-22 09:44:58 +0000 | [diff] [blame] | 12585 | // Returns the state of break on exceptions |
| 12586 | // args[0]: boolean indicating uncaught exceptions |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 12587 | RUNTIME_FUNCTION(MaybeObject*, Runtime_IsBreakOnException) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12588 | HandleScope scope(isolate); |
fschneider@chromium.org | c20610a | 2010-09-22 09:44:58 +0000 | [diff] [blame] | 12589 | ASSERT(args.length() == 1); |
| 12590 | RUNTIME_ASSERT(args[0]->IsNumber()); |
| 12591 | |
| 12592 | ExceptionBreakType type = |
| 12593 | static_cast<ExceptionBreakType>(NumberToUint32(args[0])); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12594 | bool result = isolate->debug()->IsBreakOnException(type); |
fschneider@chromium.org | c20610a | 2010-09-22 09:44:58 +0000 | [diff] [blame] | 12595 | return Smi::FromInt(result); |
| 12596 | } |
| 12597 | |
| 12598 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12599 | // Prepare for stepping |
| 12600 | // args[0]: break id for checking execution state |
| 12601 | // args[1]: step action from the enumeration StepAction |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 12602 | // args[2]: number of times to perform the step, for step out it is the number |
| 12603 | // of frames to step down. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 12604 | RUNTIME_FUNCTION(MaybeObject*, Runtime_PrepareStep) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12605 | HandleScope scope(isolate); |
dslomov@chromium.org | 639bac0 | 2013-09-09 11:58:54 +0000 | [diff] [blame] | 12606 | ASSERT(args.length() == 4); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12607 | // Check arguments. |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 12608 | Object* check; |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 12609 | { MaybeObject* maybe_check = Runtime_CheckExecutionState( |
| 12610 | RUNTIME_ARGUMENTS(isolate, args)); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 12611 | if (!maybe_check->ToObject(&check)) return maybe_check; |
| 12612 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12613 | if (!args[1]->IsNumber() || !args[2]->IsNumber()) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 12614 | return isolate->Throw(isolate->heap()->illegal_argument_string()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12615 | } |
| 12616 | |
dslomov@chromium.org | 639bac0 | 2013-09-09 11:58:54 +0000 | [diff] [blame] | 12617 | CONVERT_NUMBER_CHECKED(int, wrapped_frame_id, Int32, args[3]); |
| 12618 | |
| 12619 | StackFrame::Id frame_id; |
| 12620 | if (wrapped_frame_id == 0) { |
| 12621 | frame_id = StackFrame::NO_ID; |
| 12622 | } else { |
| 12623 | frame_id = UnwrapFrameId(wrapped_frame_id); |
| 12624 | } |
| 12625 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12626 | // Get the step action and check validity. |
| 12627 | StepAction step_action = static_cast<StepAction>(NumberToInt32(args[1])); |
| 12628 | if (step_action != StepIn && |
| 12629 | step_action != StepNext && |
| 12630 | step_action != StepOut && |
| 12631 | step_action != StepInMin && |
| 12632 | step_action != StepMin) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 12633 | return isolate->Throw(isolate->heap()->illegal_argument_string()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12634 | } |
| 12635 | |
mvstanton@chromium.org | 63ea3d2 | 2013-10-10 09:24:12 +0000 | [diff] [blame] | 12636 | if (frame_id != StackFrame::NO_ID && step_action != StepNext && |
| 12637 | step_action != StepMin && step_action != StepOut) { |
dslomov@chromium.org | 639bac0 | 2013-09-09 11:58:54 +0000 | [diff] [blame] | 12638 | return isolate->ThrowIllegalOperation(); |
| 12639 | } |
| 12640 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12641 | // Get the number of steps. |
| 12642 | int step_count = NumberToInt32(args[2]); |
| 12643 | if (step_count < 1) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 12644 | return isolate->Throw(isolate->heap()->illegal_argument_string()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12645 | } |
| 12646 | |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 12647 | // Clear all current stepping setup. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12648 | isolate->debug()->ClearStepping(); |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 12649 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12650 | // Prepare step. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12651 | isolate->debug()->PrepareStep(static_cast<StepAction>(step_action), |
dslomov@chromium.org | 639bac0 | 2013-09-09 11:58:54 +0000 | [diff] [blame] | 12652 | step_count, |
| 12653 | frame_id); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12654 | return isolate->heap()->undefined_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12655 | } |
| 12656 | |
| 12657 | |
| 12658 | // Clear all stepping set by PrepareStep. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 12659 | RUNTIME_FUNCTION(MaybeObject*, Runtime_ClearStepping) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12660 | HandleScope scope(isolate); |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 12661 | ASSERT(args.length() == 0); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12662 | isolate->debug()->ClearStepping(); |
| 12663 | return isolate->heap()->undefined_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12664 | } |
| 12665 | |
| 12666 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12667 | // Helper function to find or create the arguments object for |
| 12668 | // Runtime_DebugEvaluate. |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 12669 | static Handle<JSObject> MaterializeArgumentsObject( |
| 12670 | Isolate* isolate, |
| 12671 | Handle<JSObject> target, |
| 12672 | Handle<JSFunction> function) { |
| 12673 | // Do not materialize the arguments object for eval or top-level code. |
| 12674 | // Skip if "arguments" is already taken. |
| 12675 | if (!function->shared()->is_function() || |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 12676 | JSReceiver::HasLocalProperty(target, |
| 12677 | isolate->factory()->arguments_string())) { |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 12678 | return target; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12679 | } |
| 12680 | |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 12681 | // FunctionGetArguments can't throw an exception. |
| 12682 | Handle<JSObject> arguments = Handle<JSObject>::cast( |
| 12683 | Accessors::FunctionGetArguments(function)); |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 12684 | Runtime::SetObjectProperty(isolate, target, |
| 12685 | isolate->factory()->arguments_string(), |
| 12686 | arguments, |
| 12687 | ::NONE, |
| 12688 | kNonStrictMode); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 12689 | return target; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12690 | } |
| 12691 | |
| 12692 | |
danno@chromium.org | c99cd48 | 2013-03-21 15:26:42 +0000 | [diff] [blame] | 12693 | // Compile and evaluate source for the given context. |
| 12694 | static MaybeObject* DebugEvaluate(Isolate* isolate, |
| 12695 | Handle<Context> context, |
| 12696 | Handle<Object> context_extension, |
| 12697 | Handle<Object> receiver, |
| 12698 | Handle<String> source) { |
| 12699 | if (context_extension->IsJSObject()) { |
| 12700 | Handle<JSObject> extension = Handle<JSObject>::cast(context_extension); |
| 12701 | Handle<JSFunction> closure(context->closure(), isolate); |
| 12702 | context = isolate->factory()->NewWithContext(closure, context, extension); |
| 12703 | } |
| 12704 | |
danno@chromium.org | c99cd48 | 2013-03-21 15:26:42 +0000 | [diff] [blame] | 12705 | Handle<JSFunction> eval_fun = |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 12706 | Compiler::GetFunctionFromEval(source, |
| 12707 | context, |
| 12708 | CLASSIC_MODE, |
| 12709 | NO_PARSE_RESTRICTION, |
| 12710 | RelocInfo::kNoPosition); |
| 12711 | RETURN_IF_EMPTY_HANDLE(isolate, eval_fun); |
| 12712 | |
danno@chromium.org | c99cd48 | 2013-03-21 15:26:42 +0000 | [diff] [blame] | 12713 | bool pending_exception; |
| 12714 | Handle<Object> result = Execution::Call( |
jkummerow@chromium.org | 2c9426b | 2013-09-05 16:31:13 +0000 | [diff] [blame] | 12715 | isolate, eval_fun, receiver, 0, NULL, &pending_exception); |
danno@chromium.org | c99cd48 | 2013-03-21 15:26:42 +0000 | [diff] [blame] | 12716 | |
| 12717 | if (pending_exception) return Failure::Exception(); |
| 12718 | |
| 12719 | // Skip the global proxy as it has no properties and always delegates to the |
| 12720 | // real global object. |
| 12721 | if (result->IsJSGlobalProxy()) { |
| 12722 | result = Handle<JSObject>(JSObject::cast(result->GetPrototype(isolate))); |
| 12723 | } |
| 12724 | |
| 12725 | // Clear the oneshot breakpoints so that the debugger does not step further. |
| 12726 | isolate->debug()->ClearStepping(); |
| 12727 | return *result; |
| 12728 | } |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12729 | |
| 12730 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12731 | // Evaluate a piece of JavaScript in the context of a stack frame for |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 12732 | // debugging. Things that need special attention are: |
| 12733 | // - Parameters and stack-allocated locals need to be materialized. Altered |
| 12734 | // values need to be written back to the stack afterwards. |
| 12735 | // - The arguments object needs to materialized. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 12736 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DebugEvaluate) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12737 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12738 | |
| 12739 | // Check the execution state and decode arguments frame and source to be |
| 12740 | // evaluated. |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 12741 | ASSERT(args.length() == 6); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 12742 | Object* check_result; |
danno@chromium.org | c99cd48 | 2013-03-21 15:26:42 +0000 | [diff] [blame] | 12743 | { MaybeObject* maybe_result = Runtime_CheckExecutionState( |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 12744 | RUNTIME_ARGUMENTS(isolate, args)); |
danno@chromium.org | c99cd48 | 2013-03-21 15:26:42 +0000 | [diff] [blame] | 12745 | if (!maybe_result->ToObject(&check_result)) return maybe_result; |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 12746 | } |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 12747 | CONVERT_SMI_ARG_CHECKED(wrapped_id, 1); |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 12748 | CONVERT_NUMBER_CHECKED(int, inlined_jsframe_index, Int32, args[2]); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 12749 | CONVERT_ARG_HANDLE_CHECKED(String, source, 3); |
| 12750 | CONVERT_BOOLEAN_ARG_CHECKED(disable_break, 4); |
danno@chromium.org | c99cd48 | 2013-03-21 15:26:42 +0000 | [diff] [blame] | 12751 | Handle<Object> context_extension(args[5], isolate); |
kasper.lund | bd3ec4e | 2008-07-09 11:06:54 +0000 | [diff] [blame] | 12752 | |
| 12753 | // Handle the processing of break. |
mstarzinger@chromium.org | e900018 | 2013-09-03 11:25:39 +0000 | [diff] [blame] | 12754 | DisableBreak disable_break_save(isolate, disable_break); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12755 | |
| 12756 | // Get the frame where the debugging is performed. |
| 12757 | StackFrame::Id id = UnwrapFrameId(wrapped_id); |
vegorov@chromium.org | 74f333b | 2011-04-06 11:17:46 +0000 | [diff] [blame] | 12758 | JavaScriptFrameIterator it(isolate, id); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12759 | JavaScriptFrame* frame = it.frame(); |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 12760 | FrameInspector frame_inspector(frame, inlined_jsframe_index, isolate); |
| 12761 | Handle<JSFunction> function(JSFunction::cast(frame_inspector.GetFunction())); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12762 | |
| 12763 | // Traverse the saved contexts chain to find the active context for the |
| 12764 | // selected frame. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 12765 | SaveContext* save = FindSavedContextForFrame(isolate, frame); |
| 12766 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12767 | SaveContext savex(isolate); |
| 12768 | isolate->set_context(*(save->context())); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12769 | |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 12770 | // Evaluate on the context of the frame. |
| 12771 | Handle<Context> context(Context::cast(frame->context())); |
| 12772 | ASSERT(!context.is_null()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12773 | |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 12774 | // Materialize stack locals and the arguments object. |
| 12775 | Handle<JSObject> materialized = |
| 12776 | isolate->factory()->NewJSObject(isolate->object_function()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12777 | |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 12778 | materialized = MaterializeStackLocalsWithFrameInspector( |
| 12779 | isolate, materialized, function, &frame_inspector); |
| 12780 | RETURN_IF_EMPTY_HANDLE(isolate, materialized); |
danno@chromium.org | c99cd48 | 2013-03-21 15:26:42 +0000 | [diff] [blame] | 12781 | |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 12782 | materialized = MaterializeArgumentsObject(isolate, materialized, function); |
| 12783 | RETURN_IF_EMPTY_HANDLE(isolate, materialized); |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 12784 | |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 12785 | // Add the materialized object in a with-scope to shadow the stack locals. |
| 12786 | context = isolate->factory()->NewWithContext(function, context, materialized); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12787 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12788 | Handle<Object> receiver(frame->receiver(), isolate); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 12789 | Object* evaluate_result_object; |
| 12790 | { MaybeObject* maybe_result = |
| 12791 | DebugEvaluate(isolate, context, context_extension, receiver, source); |
| 12792 | if (!maybe_result->ToObject(&evaluate_result_object)) return maybe_result; |
| 12793 | } |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 12794 | |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 12795 | Handle<Object> result(evaluate_result_object, isolate); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 12796 | |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 12797 | // Write back potential changes to materialized stack locals to the stack. |
| 12798 | UpdateStackLocalsFromMaterializedObject( |
| 12799 | isolate, materialized, function, frame, inlined_jsframe_index); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 12800 | |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 12801 | return *result; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12802 | } |
| 12803 | |
| 12804 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 12805 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DebugEvaluateGlobal) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12806 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12807 | |
| 12808 | // Check the execution state and decode arguments frame and source to be |
| 12809 | // evaluated. |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 12810 | ASSERT(args.length() == 4); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 12811 | Object* check_result; |
danno@chromium.org | c99cd48 | 2013-03-21 15:26:42 +0000 | [diff] [blame] | 12812 | { MaybeObject* maybe_result = Runtime_CheckExecutionState( |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 12813 | RUNTIME_ARGUMENTS(isolate, args)); |
danno@chromium.org | c99cd48 | 2013-03-21 15:26:42 +0000 | [diff] [blame] | 12814 | if (!maybe_result->ToObject(&check_result)) return maybe_result; |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 12815 | } |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 12816 | CONVERT_ARG_HANDLE_CHECKED(String, source, 1); |
| 12817 | CONVERT_BOOLEAN_ARG_CHECKED(disable_break, 2); |
danno@chromium.org | c99cd48 | 2013-03-21 15:26:42 +0000 | [diff] [blame] | 12818 | Handle<Object> context_extension(args[3], isolate); |
kasper.lund | bd3ec4e | 2008-07-09 11:06:54 +0000 | [diff] [blame] | 12819 | |
| 12820 | // Handle the processing of break. |
mstarzinger@chromium.org | e900018 | 2013-09-03 11:25:39 +0000 | [diff] [blame] | 12821 | DisableBreak disable_break_save(isolate, disable_break); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12822 | |
| 12823 | // Enter the top context from before the debugger was invoked. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12824 | SaveContext save(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12825 | SaveContext* top = &save; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12826 | while (top != NULL && *top->context() == *isolate->debug()->debug_context()) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12827 | top = top->prev(); |
| 12828 | } |
| 12829 | if (top != NULL) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12830 | isolate->set_context(*top->context()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12831 | } |
| 12832 | |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 12833 | // Get the native context now set to the top context from before the |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12834 | // debugger was invoked. |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 12835 | Handle<Context> context = isolate->native_context(); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 12836 | Handle<Object> receiver = isolate->global_object(); |
danno@chromium.org | c99cd48 | 2013-03-21 15:26:42 +0000 | [diff] [blame] | 12837 | return DebugEvaluate(isolate, context, context_extension, receiver, source); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12838 | } |
| 12839 | |
| 12840 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 12841 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DebugGetLoadedScripts) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12842 | HandleScope scope(isolate); |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 12843 | ASSERT(args.length() == 0); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12844 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12845 | // Fill the script objects. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12846 | Handle<FixedArray> instances = isolate->debug()->GetLoadedScripts(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12847 | |
| 12848 | // Convert the script objects to proper JS objects. |
kasperl@chromium.org | 71affb5 | 2009-05-26 05:44:31 +0000 | [diff] [blame] | 12849 | for (int i = 0; i < instances->length(); i++) { |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 12850 | Handle<Script> script = Handle<Script>(Script::cast(instances->get(i))); |
| 12851 | // Get the script wrapper in a local handle before calling GetScriptWrapper, |
| 12852 | // because using |
| 12853 | // instances->set(i, *GetScriptWrapper(script)) |
| 12854 | // is unsafe as GetScriptWrapper might call GC and the C++ compiler might |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 12855 | // already have dereferenced the instances handle. |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 12856 | Handle<JSValue> wrapper = GetScriptWrapper(script); |
| 12857 | instances->set(i, *wrapper); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12858 | } |
| 12859 | |
| 12860 | // Return result as a JS array. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 12861 | Handle<JSObject> result = |
| 12862 | isolate->factory()->NewJSObject(isolate->array_function()); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 12863 | isolate->factory()->SetContent(Handle<JSArray>::cast(result), instances); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12864 | return *result; |
| 12865 | } |
| 12866 | |
| 12867 | |
| 12868 | // Helper function used by Runtime_DebugReferencedBy below. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 12869 | static int DebugReferencedBy(HeapIterator* iterator, |
| 12870 | JSObject* target, |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12871 | Object* instance_filter, int max_references, |
| 12872 | FixedArray* instances, int instances_size, |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12873 | JSFunction* arguments_function) { |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 12874 | Isolate* isolate = target->GetIsolate(); |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 12875 | SealHandleScope shs(isolate); |
| 12876 | DisallowHeapAllocation no_allocation; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12877 | |
| 12878 | // Iterate the heap. |
| 12879 | int count = 0; |
| 12880 | JSObject* last = NULL; |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 12881 | HeapObject* heap_obj = NULL; |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 12882 | while (((heap_obj = iterator->next()) != NULL) && |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12883 | (max_references == 0 || count < max_references)) { |
| 12884 | // Only look at all JSObjects. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12885 | if (heap_obj->IsJSObject()) { |
| 12886 | // Skip context extension objects and argument arrays as these are |
| 12887 | // checked in the context of functions using them. |
| 12888 | JSObject* obj = JSObject::cast(heap_obj); |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 12889 | if (obj->IsJSContextExtensionObject() || |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12890 | obj->map()->constructor() == arguments_function) { |
| 12891 | continue; |
| 12892 | } |
| 12893 | |
| 12894 | // Check if the JS object has a reference to the object looked for. |
| 12895 | if (obj->ReferencesObject(target)) { |
| 12896 | // Check instance filter if supplied. This is normally used to avoid |
| 12897 | // references from mirror objects (see Runtime_IsInPrototypeChain). |
| 12898 | if (!instance_filter->IsUndefined()) { |
| 12899 | Object* V = obj; |
| 12900 | while (true) { |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 12901 | Object* prototype = V->GetPrototype(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12902 | if (prototype->IsNull()) { |
| 12903 | break; |
| 12904 | } |
| 12905 | if (instance_filter == prototype) { |
| 12906 | obj = NULL; // Don't add this object. |
| 12907 | break; |
| 12908 | } |
| 12909 | V = prototype; |
| 12910 | } |
| 12911 | } |
| 12912 | |
| 12913 | if (obj != NULL) { |
| 12914 | // Valid reference found add to instance array if supplied an update |
| 12915 | // count. |
| 12916 | if (instances != NULL && count < instances_size) { |
| 12917 | instances->set(count, obj); |
| 12918 | } |
| 12919 | last = obj; |
| 12920 | count++; |
| 12921 | } |
| 12922 | } |
| 12923 | } |
| 12924 | } |
| 12925 | |
| 12926 | // Check for circular reference only. This can happen when the object is only |
| 12927 | // referenced from mirrors and has a circular reference in which case the |
| 12928 | // object is not really alive and would have been garbage collected if not |
| 12929 | // referenced from the mirror. |
| 12930 | if (count == 1 && last == target) { |
| 12931 | count = 0; |
| 12932 | } |
| 12933 | |
| 12934 | // Return the number of referencing objects found. |
| 12935 | return count; |
| 12936 | } |
| 12937 | |
| 12938 | |
| 12939 | // Scan the heap for objects with direct references to an object |
| 12940 | // args[0]: the object to find references to |
| 12941 | // args[1]: constructor function for instances to exclude (Mirror) |
| 12942 | // args[2]: the the maximum number of objects to return |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 12943 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DebugReferencedBy) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 12944 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12945 | ASSERT(args.length() == 3); |
| 12946 | |
| 12947 | // First perform a full GC in order to avoid references from dead objects. |
rossberg@chromium.org | 994edf6 | 2012-02-06 10:12:55 +0000 | [diff] [blame] | 12948 | isolate->heap()->CollectAllGarbage(Heap::kMakeHeapIterableMask, |
| 12949 | "%DebugReferencedBy"); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 12950 | // The heap iterator reserves the right to do a GC to make the heap iterable. |
| 12951 | // Due to the GC above we know it won't need to do that, but it seems cleaner |
| 12952 | // to get the heap iterator constructed before we start having unprotected |
| 12953 | // Object* locals that are not protected by handles. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12954 | |
| 12955 | // Check parameters. |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 12956 | CONVERT_ARG_CHECKED(JSObject, target, 0); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12957 | Object* instance_filter = args[1]; |
| 12958 | RUNTIME_ASSERT(instance_filter->IsUndefined() || |
| 12959 | instance_filter->IsJSObject()); |
| 12960 | CONVERT_NUMBER_CHECKED(int32_t, max_references, Int32, args[2]); |
| 12961 | RUNTIME_ASSERT(max_references >= 0); |
| 12962 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 12963 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12964 | // Get the constructor function for context extension and arguments array. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12965 | JSObject* arguments_boilerplate = |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 12966 | isolate->context()->native_context()->arguments_boilerplate(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12967 | JSFunction* arguments_function = |
| 12968 | JSFunction::cast(arguments_boilerplate->map()->constructor()); |
| 12969 | |
| 12970 | // Get the number of referencing objects. |
| 12971 | int count; |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 12972 | Heap* heap = isolate->heap(); |
| 12973 | HeapIterator heap_iterator(heap); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 12974 | count = DebugReferencedBy(&heap_iterator, |
| 12975 | target, instance_filter, max_references, |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 12976 | NULL, 0, arguments_function); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12977 | |
| 12978 | // Allocate an array to hold the result. |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 12979 | Object* object; |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 12980 | { MaybeObject* maybe_object = heap->AllocateFixedArray(count); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 12981 | if (!maybe_object->ToObject(&object)) return maybe_object; |
| 12982 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12983 | FixedArray* instances = FixedArray::cast(object); |
| 12984 | |
| 12985 | // Fill the referencing objects. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 12986 | // AllocateFixedArray above does not make the heap non-iterable. |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 12987 | ASSERT(heap->IsHeapIterable()); |
| 12988 | HeapIterator heap_iterator2(heap); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 12989 | count = DebugReferencedBy(&heap_iterator2, |
| 12990 | target, instance_filter, max_references, |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 12991 | instances, count, arguments_function); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12992 | |
| 12993 | // Return result as JS array. |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 12994 | Object* result; |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 12995 | MaybeObject* maybe_result = heap->AllocateJSObject( |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 12996 | isolate->context()->native_context()->array_function()); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 12997 | if (!maybe_result->ToObject(&result)) return maybe_result; |
| 12998 | return JSArray::cast(result)->SetContent(instances); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 12999 | } |
| 13000 | |
| 13001 | |
| 13002 | // Helper function used by Runtime_DebugConstructedBy below. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 13003 | static int DebugConstructedBy(HeapIterator* iterator, |
| 13004 | JSFunction* constructor, |
| 13005 | int max_references, |
| 13006 | FixedArray* instances, |
| 13007 | int instances_size) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 13008 | DisallowHeapAllocation no_allocation; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 13009 | |
| 13010 | // Iterate the heap. |
| 13011 | int count = 0; |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 13012 | HeapObject* heap_obj = NULL; |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 13013 | while (((heap_obj = iterator->next()) != NULL) && |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 13014 | (max_references == 0 || count < max_references)) { |
| 13015 | // Only look at all JSObjects. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 13016 | if (heap_obj->IsJSObject()) { |
| 13017 | JSObject* obj = JSObject::cast(heap_obj); |
| 13018 | if (obj->map()->constructor() == constructor) { |
| 13019 | // Valid reference found add to instance array if supplied an update |
| 13020 | // count. |
| 13021 | if (instances != NULL && count < instances_size) { |
| 13022 | instances->set(count, obj); |
| 13023 | } |
| 13024 | count++; |
| 13025 | } |
| 13026 | } |
| 13027 | } |
| 13028 | |
| 13029 | // Return the number of referencing objects found. |
| 13030 | return count; |
| 13031 | } |
| 13032 | |
| 13033 | |
| 13034 | // Scan the heap for objects constructed by a specific function. |
| 13035 | // args[0]: the constructor to find instances of |
| 13036 | // args[1]: the the maximum number of objects to return |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 13037 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DebugConstructedBy) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 13038 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 13039 | ASSERT(args.length() == 2); |
| 13040 | |
| 13041 | // First perform a full GC in order to avoid dead objects. |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 13042 | Heap* heap = isolate->heap(); |
| 13043 | heap->CollectAllGarbage(Heap::kMakeHeapIterableMask, "%DebugConstructedBy"); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 13044 | |
| 13045 | // Check parameters. |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 13046 | CONVERT_ARG_CHECKED(JSFunction, constructor, 0); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 13047 | CONVERT_NUMBER_CHECKED(int32_t, max_references, Int32, args[1]); |
| 13048 | RUNTIME_ASSERT(max_references >= 0); |
| 13049 | |
| 13050 | // Get the number of referencing objects. |
| 13051 | int count; |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 13052 | HeapIterator heap_iterator(heap); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 13053 | count = DebugConstructedBy(&heap_iterator, |
| 13054 | constructor, |
| 13055 | max_references, |
| 13056 | NULL, |
| 13057 | 0); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 13058 | |
| 13059 | // Allocate an array to hold the result. |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 13060 | Object* object; |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 13061 | { MaybeObject* maybe_object = heap->AllocateFixedArray(count); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 13062 | if (!maybe_object->ToObject(&object)) return maybe_object; |
| 13063 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 13064 | FixedArray* instances = FixedArray::cast(object); |
| 13065 | |
hpayer@chromium.org | c5d4971 | 2013-09-11 08:25:48 +0000 | [diff] [blame] | 13066 | ASSERT(isolate->heap()->IsHeapIterable()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 13067 | // Fill the referencing objects. |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 13068 | HeapIterator heap_iterator2(heap); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 13069 | count = DebugConstructedBy(&heap_iterator2, |
| 13070 | constructor, |
| 13071 | max_references, |
| 13072 | instances, |
| 13073 | count); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 13074 | |
| 13075 | // Return result as JS array. |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 13076 | Object* result; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 13077 | { MaybeObject* maybe_result = isolate->heap()->AllocateJSObject( |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 13078 | isolate->context()->native_context()->array_function()); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 13079 | if (!maybe_result->ToObject(&result)) return maybe_result; |
| 13080 | } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 13081 | return JSArray::cast(result)->SetContent(instances); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 13082 | } |
| 13083 | |
| 13084 | |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 13085 | // Find the effective prototype object as returned by __proto__. |
| 13086 | // args[0]: the object to find the prototype for. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 13087 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DebugGetPrototype) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 13088 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 13089 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 13090 | CONVERT_ARG_CHECKED(JSObject, obj, 0); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 13091 | return GetPrototypeSkipHiddenPrototypes(isolate, obj); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 13092 | } |
| 13093 | |
| 13094 | |
rossberg@chromium.org | 2c067b1 | 2012-03-19 11:01:52 +0000 | [diff] [blame] | 13095 | // Patches script source (should be called upon BeforeCompile event). |
| 13096 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DebugSetScriptSource) { |
| 13097 | HandleScope scope(isolate); |
| 13098 | ASSERT(args.length() == 2); |
| 13099 | |
| 13100 | CONVERT_ARG_HANDLE_CHECKED(JSValue, script_wrapper, 0); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 13101 | CONVERT_ARG_HANDLE_CHECKED(String, source, 1); |
rossberg@chromium.org | 2c067b1 | 2012-03-19 11:01:52 +0000 | [diff] [blame] | 13102 | |
| 13103 | RUNTIME_ASSERT(script_wrapper->value()->IsScript()); |
| 13104 | Handle<Script> script(Script::cast(script_wrapper->value())); |
| 13105 | |
danno@chromium.org | d3c4210 | 2013-08-01 16:58:23 +0000 | [diff] [blame] | 13106 | int compilation_state = script->compilation_state(); |
rossberg@chromium.org | 2c067b1 | 2012-03-19 11:01:52 +0000 | [diff] [blame] | 13107 | RUNTIME_ASSERT(compilation_state == Script::COMPILATION_STATE_INITIAL); |
| 13108 | script->set_source(*source); |
| 13109 | |
| 13110 | return isolate->heap()->undefined_value(); |
| 13111 | } |
| 13112 | |
| 13113 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 13114 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SystemBreak) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 13115 | SealHandleScope shs(isolate); |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 13116 | ASSERT(args.length() == 0); |
rossberg@chromium.org | 9259716 | 2013-08-23 13:28:00 +0000 | [diff] [blame] | 13117 | OS::DebugBreak(); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 13118 | return isolate->heap()->undefined_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 13119 | } |
| 13120 | |
| 13121 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 13122 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DebugDisassembleFunction) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 13123 | HandleScope scope(isolate); |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 13124 | #ifdef DEBUG |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 13125 | ASSERT(args.length() == 1); |
| 13126 | // Get the function and make sure it is compiled. |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 13127 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, func, 0); |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 13128 | if (!Compiler::EnsureCompiled(func, KEEP_EXCEPTION)) { |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 13129 | return Failure::Exception(); |
| 13130 | } |
| 13131 | func->code()->PrintLn(); |
| 13132 | #endif // DEBUG |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 13133 | return isolate->heap()->undefined_value(); |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 13134 | } |
ager@chromium.org | 9085a01 | 2009-05-11 19:22:57 +0000 | [diff] [blame] | 13135 | |
| 13136 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 13137 | RUNTIME_FUNCTION(MaybeObject*, Runtime_DebugDisassembleConstructor) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 13138 | HandleScope scope(isolate); |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 13139 | #ifdef DEBUG |
ager@chromium.org | 18ad94b | 2009-09-02 08:22:29 +0000 | [diff] [blame] | 13140 | ASSERT(args.length() == 1); |
| 13141 | // Get the function and make sure it is compiled. |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 13142 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, func, 0); |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 13143 | if (!Compiler::EnsureCompiled(func, KEEP_EXCEPTION)) { |
ager@chromium.org | 18ad94b | 2009-09-02 08:22:29 +0000 | [diff] [blame] | 13144 | return Failure::Exception(); |
| 13145 | } |
rossberg@chromium.org | 400388e | 2012-06-06 09:29:22 +0000 | [diff] [blame] | 13146 | func->shared()->construct_stub()->PrintLn(); |
ager@chromium.org | 18ad94b | 2009-09-02 08:22:29 +0000 | [diff] [blame] | 13147 | #endif // DEBUG |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 13148 | return isolate->heap()->undefined_value(); |
ager@chromium.org | 18ad94b | 2009-09-02 08:22:29 +0000 | [diff] [blame] | 13149 | } |
| 13150 | |
| 13151 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 13152 | RUNTIME_FUNCTION(MaybeObject*, Runtime_FunctionGetInferredName) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 13153 | SealHandleScope shs(isolate); |
ager@chromium.org | 9085a01 | 2009-05-11 19:22:57 +0000 | [diff] [blame] | 13154 | ASSERT(args.length() == 1); |
| 13155 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 13156 | CONVERT_ARG_CHECKED(JSFunction, f, 0); |
ager@chromium.org | 9085a01 | 2009-05-11 19:22:57 +0000 | [diff] [blame] | 13157 | return f->shared()->inferred_name(); |
| 13158 | } |
sgjesse@chromium.org | ac6aa17 | 2009-12-04 12:29:05 +0000 | [diff] [blame] | 13159 | |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13160 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 13161 | static int FindSharedFunctionInfosForScript(HeapIterator* iterator, |
| 13162 | Script* script, |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 13163 | FixedArray* buffer) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 13164 | DisallowHeapAllocation no_allocation; |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13165 | int counter = 0; |
| 13166 | int buffer_size = buffer->length(); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 13167 | for (HeapObject* obj = iterator->next(); |
| 13168 | obj != NULL; |
| 13169 | obj = iterator->next()) { |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13170 | ASSERT(obj != NULL); |
| 13171 | if (!obj->IsSharedFunctionInfo()) { |
| 13172 | continue; |
| 13173 | } |
| 13174 | SharedFunctionInfo* shared = SharedFunctionInfo::cast(obj); |
| 13175 | if (shared->script() != script) { |
| 13176 | continue; |
| 13177 | } |
| 13178 | if (counter < buffer_size) { |
| 13179 | buffer->set(counter, shared); |
| 13180 | } |
| 13181 | counter++; |
| 13182 | } |
| 13183 | return counter; |
| 13184 | } |
| 13185 | |
mstarzinger@chromium.org | e0e1b0d | 2013-07-08 08:38:06 +0000 | [diff] [blame] | 13186 | |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13187 | // For a script finds all SharedFunctionInfo's in the heap that points |
| 13188 | // to this script. Returns JSArray of SharedFunctionInfo wrapped |
| 13189 | // in OpaqueReferences. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 13190 | RUNTIME_FUNCTION(MaybeObject*, |
| 13191 | Runtime_LiveEditFindSharedFunctionInfosForScript) { |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 13192 | HandleScope scope(isolate); |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 13193 | CHECK(isolate->debugger()->live_edit_enabled()); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13194 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 13195 | CONVERT_ARG_CHECKED(JSValue, script_value, 0); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13196 | |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 13197 | RUNTIME_ASSERT(script_value->value()->IsScript()); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13198 | Handle<Script> script = Handle<Script>(Script::cast(script_value->value())); |
| 13199 | |
| 13200 | const int kBufferSize = 32; |
| 13201 | |
| 13202 | Handle<FixedArray> array; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 13203 | array = isolate->factory()->NewFixedArray(kBufferSize); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 13204 | int number; |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 13205 | Heap* heap = isolate->heap(); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 13206 | { |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 13207 | heap->EnsureHeapIsIterable(); |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 13208 | DisallowHeapAllocation no_allocation; |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 13209 | HeapIterator heap_iterator(heap); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 13210 | Script* scr = *script; |
| 13211 | FixedArray* arr = *array; |
| 13212 | number = FindSharedFunctionInfosForScript(&heap_iterator, scr, arr); |
| 13213 | } |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13214 | if (number > kBufferSize) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 13215 | array = isolate->factory()->NewFixedArray(number); |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 13216 | heap->EnsureHeapIsIterable(); |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 13217 | DisallowHeapAllocation no_allocation; |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 13218 | HeapIterator heap_iterator(heap); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 13219 | Script* scr = *script; |
| 13220 | FixedArray* arr = *array; |
| 13221 | FindSharedFunctionInfosForScript(&heap_iterator, scr, arr); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13222 | } |
| 13223 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 13224 | Handle<JSArray> result = isolate->factory()->NewJSArrayWithElements(array); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13225 | result->set_length(Smi::FromInt(number)); |
| 13226 | |
| 13227 | LiveEdit::WrapSharedFunctionInfos(result); |
| 13228 | |
| 13229 | return *result; |
| 13230 | } |
| 13231 | |
mstarzinger@chromium.org | e0e1b0d | 2013-07-08 08:38:06 +0000 | [diff] [blame] | 13232 | |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13233 | // For a script calculates compilation information about all its functions. |
| 13234 | // The script source is explicitly specified by the second argument. |
| 13235 | // The source of the actual script is not used, however it is important that |
| 13236 | // all generated code keeps references to this particular instance of script. |
| 13237 | // Returns a JSArray of compilation infos. The array is ordered so that |
| 13238 | // each function with all its descendant is always stored in a continues range |
| 13239 | // with the function itself going first. The root function is a script function. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 13240 | RUNTIME_FUNCTION(MaybeObject*, Runtime_LiveEditGatherCompileInfo) { |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 13241 | HandleScope scope(isolate); |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 13242 | CHECK(isolate->debugger()->live_edit_enabled()); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13243 | ASSERT(args.length() == 2); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 13244 | CONVERT_ARG_CHECKED(JSValue, script, 0); |
| 13245 | CONVERT_ARG_HANDLE_CHECKED(String, source, 1); |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 13246 | |
| 13247 | RUNTIME_ASSERT(script->value()->IsScript()); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13248 | Handle<Script> script_handle = Handle<Script>(Script::cast(script->value())); |
| 13249 | |
| 13250 | JSArray* result = LiveEdit::GatherCompileInfo(script_handle, source); |
| 13251 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 13252 | if (isolate->has_pending_exception()) { |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13253 | return Failure::Exception(); |
| 13254 | } |
| 13255 | |
| 13256 | return result; |
| 13257 | } |
| 13258 | |
mstarzinger@chromium.org | e0e1b0d | 2013-07-08 08:38:06 +0000 | [diff] [blame] | 13259 | |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 13260 | // Changes the source of the script to a new_source. |
| 13261 | // If old_script_name is provided (i.e. is a String), also creates a copy of |
| 13262 | // the script with its original source and sends notification to debugger. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 13263 | RUNTIME_FUNCTION(MaybeObject*, Runtime_LiveEditReplaceScript) { |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 13264 | HandleScope scope(isolate); |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 13265 | CHECK(isolate->debugger()->live_edit_enabled()); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13266 | ASSERT(args.length() == 3); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 13267 | CONVERT_ARG_CHECKED(JSValue, original_script_value, 0); |
| 13268 | CONVERT_ARG_HANDLE_CHECKED(String, new_source, 1); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 13269 | Handle<Object> old_script_name(args[2], isolate); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13270 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 13271 | RUNTIME_ASSERT(original_script_value->value()->IsScript()); |
| 13272 | Handle<Script> original_script(Script::cast(original_script_value->value())); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13273 | |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 13274 | Object* old_script = LiveEdit::ChangeScriptSource(original_script, |
| 13275 | new_source, |
| 13276 | old_script_name); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13277 | |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 13278 | if (old_script->IsScript()) { |
| 13279 | Handle<Script> script_handle(Script::cast(old_script)); |
| 13280 | return *(GetScriptWrapper(script_handle)); |
| 13281 | } else { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 13282 | return isolate->heap()->null_value(); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 13283 | } |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13284 | } |
| 13285 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 13286 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 13287 | RUNTIME_FUNCTION(MaybeObject*, Runtime_LiveEditFunctionSourceUpdated) { |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 13288 | HandleScope scope(isolate); |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 13289 | CHECK(isolate->debugger()->live_edit_enabled()); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 13290 | ASSERT(args.length() == 1); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 13291 | CONVERT_ARG_HANDLE_CHECKED(JSArray, shared_info, 0); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 13292 | return LiveEdit::FunctionSourceUpdated(shared_info); |
| 13293 | } |
| 13294 | |
| 13295 | |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13296 | // Replaces code of SharedFunctionInfo with a new one. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 13297 | RUNTIME_FUNCTION(MaybeObject*, Runtime_LiveEditReplaceFunctionCode) { |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 13298 | HandleScope scope(isolate); |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 13299 | CHECK(isolate->debugger()->live_edit_enabled()); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13300 | ASSERT(args.length() == 2); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 13301 | CONVERT_ARG_HANDLE_CHECKED(JSArray, new_compile_info, 0); |
| 13302 | CONVERT_ARG_HANDLE_CHECKED(JSArray, shared_info, 1); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13303 | |
ager@chromium.org | ac091b7 | 2010-05-05 07:34:42 +0000 | [diff] [blame] | 13304 | return LiveEdit::ReplaceFunctionCode(new_compile_info, shared_info); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13305 | } |
| 13306 | |
mstarzinger@chromium.org | e0e1b0d | 2013-07-08 08:38:06 +0000 | [diff] [blame] | 13307 | |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13308 | // Connects SharedFunctionInfo to another script. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 13309 | RUNTIME_FUNCTION(MaybeObject*, Runtime_LiveEditFunctionSetScript) { |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 13310 | HandleScope scope(isolate); |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 13311 | CHECK(isolate->debugger()->live_edit_enabled()); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13312 | ASSERT(args.length() == 2); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 13313 | Handle<Object> function_object(args[0], isolate); |
| 13314 | Handle<Object> script_object(args[1], isolate); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13315 | |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 13316 | if (function_object->IsJSValue()) { |
| 13317 | Handle<JSValue> function_wrapper = Handle<JSValue>::cast(function_object); |
| 13318 | if (script_object->IsJSValue()) { |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 13319 | RUNTIME_ASSERT(JSValue::cast(*script_object)->value()->IsScript()); |
| 13320 | Script* script = Script::cast(JSValue::cast(*script_object)->value()); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 13321 | script_object = Handle<Object>(script, isolate); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 13322 | } |
| 13323 | |
| 13324 | LiveEdit::SetFunctionScript(function_wrapper, script_object); |
| 13325 | } else { |
| 13326 | // Just ignore this. We may not have a SharedFunctionInfo for some functions |
| 13327 | // and we check it in this function. |
| 13328 | } |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13329 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 13330 | return isolate->heap()->undefined_value(); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13331 | } |
| 13332 | |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 13333 | |
| 13334 | // In a code of a parent function replaces original function as embedded object |
| 13335 | // with a substitution one. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 13336 | RUNTIME_FUNCTION(MaybeObject*, Runtime_LiveEditReplaceRefToNestedFunction) { |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 13337 | HandleScope scope(isolate); |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 13338 | CHECK(isolate->debugger()->live_edit_enabled()); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 13339 | ASSERT(args.length() == 3); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 13340 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 13341 | CONVERT_ARG_HANDLE_CHECKED(JSValue, parent_wrapper, 0); |
| 13342 | CONVERT_ARG_HANDLE_CHECKED(JSValue, orig_wrapper, 1); |
| 13343 | CONVERT_ARG_HANDLE_CHECKED(JSValue, subst_wrapper, 2); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 13344 | |
| 13345 | LiveEdit::ReplaceRefToNestedFunction(parent_wrapper, orig_wrapper, |
| 13346 | subst_wrapper); |
| 13347 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 13348 | return isolate->heap()->undefined_value(); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 13349 | } |
| 13350 | |
| 13351 | |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13352 | // Updates positions of a shared function info (first parameter) according |
| 13353 | // to script source change. Text change is described in second parameter as |
| 13354 | // array of groups of 3 numbers: |
| 13355 | // (change_begin, change_end, change_end_new_position). |
| 13356 | // Each group describes a change in text; groups are sorted by change_begin. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 13357 | RUNTIME_FUNCTION(MaybeObject*, Runtime_LiveEditPatchFunctionPositions) { |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 13358 | HandleScope scope(isolate); |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 13359 | CHECK(isolate->debugger()->live_edit_enabled()); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13360 | ASSERT(args.length() == 2); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 13361 | CONVERT_ARG_HANDLE_CHECKED(JSArray, shared_array, 0); |
| 13362 | CONVERT_ARG_HANDLE_CHECKED(JSArray, position_change_array, 1); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13363 | |
ager@chromium.org | ac091b7 | 2010-05-05 07:34:42 +0000 | [diff] [blame] | 13364 | return LiveEdit::PatchFunctionPositions(shared_array, position_change_array); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13365 | } |
| 13366 | |
| 13367 | |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13368 | // For array of SharedFunctionInfo's (each wrapped in JSValue) |
| 13369 | // checks that none of them have activations on stacks (of any thread). |
| 13370 | // Returns array of the same length with corresponding results of |
| 13371 | // LiveEdit::FunctionPatchabilityStatus type. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 13372 | RUNTIME_FUNCTION(MaybeObject*, Runtime_LiveEditCheckAndDropActivations) { |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 13373 | HandleScope scope(isolate); |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 13374 | CHECK(isolate->debugger()->live_edit_enabled()); |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 13375 | ASSERT(args.length() == 2); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 13376 | CONVERT_ARG_HANDLE_CHECKED(JSArray, shared_array, 0); |
| 13377 | CONVERT_BOOLEAN_ARG_CHECKED(do_drop, 1); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13378 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 13379 | return *LiveEdit::CheckAndDropActivations(shared_array, do_drop); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 13380 | } |
| 13381 | |
mstarzinger@chromium.org | e0e1b0d | 2013-07-08 08:38:06 +0000 | [diff] [blame] | 13382 | |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 13383 | // Compares 2 strings line-by-line, then token-wise and returns diff in form |
| 13384 | // of JSArray of triplets (pos1, pos1_end, pos2_end) describing list |
| 13385 | // of diff chunks. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 13386 | RUNTIME_FUNCTION(MaybeObject*, Runtime_LiveEditCompareStrings) { |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 13387 | HandleScope scope(isolate); |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 13388 | CHECK(isolate->debugger()->live_edit_enabled()); |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 13389 | ASSERT(args.length() == 2); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 13390 | CONVERT_ARG_HANDLE_CHECKED(String, s1, 0); |
| 13391 | CONVERT_ARG_HANDLE_CHECKED(String, s2, 1); |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 13392 | |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 13393 | return *LiveEdit::CompareStrings(s1, s2); |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 13394 | } |
| 13395 | |
| 13396 | |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 13397 | // Restarts a call frame and completely drops all frames above. |
| 13398 | // Returns true if successful. Otherwise returns undefined or an error message. |
| 13399 | RUNTIME_FUNCTION(MaybeObject*, Runtime_LiveEditRestartFrame) { |
| 13400 | HandleScope scope(isolate); |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 13401 | CHECK(isolate->debugger()->live_edit_enabled()); |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 13402 | ASSERT(args.length() == 2); |
| 13403 | |
| 13404 | // Check arguments. |
| 13405 | Object* check; |
| 13406 | { MaybeObject* maybe_check = Runtime_CheckExecutionState( |
| 13407 | RUNTIME_ARGUMENTS(isolate, args)); |
| 13408 | if (!maybe_check->ToObject(&check)) return maybe_check; |
| 13409 | } |
| 13410 | CONVERT_NUMBER_CHECKED(int, index, Int32, args[1]); |
| 13411 | Heap* heap = isolate->heap(); |
| 13412 | |
| 13413 | // Find the relevant frame with the requested index. |
| 13414 | StackFrame::Id id = isolate->debug()->break_frame_id(); |
| 13415 | if (id == StackFrame::NO_ID) { |
| 13416 | // If there are no JavaScript stack frames return undefined. |
| 13417 | return heap->undefined_value(); |
| 13418 | } |
| 13419 | |
| 13420 | int count = 0; |
| 13421 | JavaScriptFrameIterator it(isolate, id); |
| 13422 | for (; !it.done(); it.Advance()) { |
| 13423 | if (index < count + it.frame()->GetInlineCount()) break; |
| 13424 | count += it.frame()->GetInlineCount(); |
| 13425 | } |
| 13426 | if (it.done()) return heap->undefined_value(); |
| 13427 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 13428 | const char* error_message = LiveEdit::RestartFrame(it.frame()); |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 13429 | if (error_message) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 13430 | return *(isolate->factory()->InternalizeUtf8String(error_message)); |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 13431 | } |
| 13432 | return heap->true_value(); |
| 13433 | } |
| 13434 | |
| 13435 | |
fschneider@chromium.org | 086aac6 | 2010-03-17 13:18:24 +0000 | [diff] [blame] | 13436 | // A testing entry. Returns statement position which is the closest to |
| 13437 | // source_position. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 13438 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetFunctionCodePositionFromSource) { |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 13439 | HandleScope scope(isolate); |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 13440 | CHECK(isolate->debugger()->live_edit_enabled()); |
fschneider@chromium.org | 086aac6 | 2010-03-17 13:18:24 +0000 | [diff] [blame] | 13441 | ASSERT(args.length() == 2); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 13442 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 0); |
fschneider@chromium.org | 086aac6 | 2010-03-17 13:18:24 +0000 | [diff] [blame] | 13443 | CONVERT_NUMBER_CHECKED(int32_t, source_position, Int32, args[1]); |
| 13444 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 13445 | Handle<Code> code(function->code(), isolate); |
fschneider@chromium.org | 086aac6 | 2010-03-17 13:18:24 +0000 | [diff] [blame] | 13446 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 13447 | if (code->kind() != Code::FUNCTION && |
| 13448 | code->kind() != Code::OPTIMIZED_FUNCTION) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 13449 | return isolate->heap()->undefined_value(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 13450 | } |
| 13451 | |
| 13452 | RelocIterator it(*code, RelocInfo::ModeMask(RelocInfo::STATEMENT_POSITION)); |
fschneider@chromium.org | 086aac6 | 2010-03-17 13:18:24 +0000 | [diff] [blame] | 13453 | int closest_pc = 0; |
| 13454 | int distance = kMaxInt; |
| 13455 | while (!it.done()) { |
| 13456 | int statement_position = static_cast<int>(it.rinfo()->data()); |
| 13457 | // Check if this break point is closer that what was previously found. |
| 13458 | if (source_position <= statement_position && |
| 13459 | statement_position - source_position < distance) { |
whesse@chromium.org | b6e43bb | 2010-04-14 09:36:28 +0000 | [diff] [blame] | 13460 | closest_pc = |
| 13461 | static_cast<int>(it.rinfo()->pc() - code->instruction_start()); |
fschneider@chromium.org | 086aac6 | 2010-03-17 13:18:24 +0000 | [diff] [blame] | 13462 | distance = statement_position - source_position; |
| 13463 | // Check whether we can't get any closer. |
| 13464 | if (distance == 0) break; |
| 13465 | } |
| 13466 | it.next(); |
| 13467 | } |
| 13468 | |
| 13469 | return Smi::FromInt(closest_pc); |
| 13470 | } |
| 13471 | |
| 13472 | |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 13473 | // Calls specified function with or without entering the debugger. |
| 13474 | // This is used in unit tests to run code as if debugger is entered or simply |
| 13475 | // to have a stack with C++ frame in the middle. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 13476 | RUNTIME_FUNCTION(MaybeObject*, Runtime_ExecuteInDebugContext) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 13477 | HandleScope scope(isolate); |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 13478 | ASSERT(args.length() == 2); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 13479 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 0); |
| 13480 | CONVERT_BOOLEAN_ARG_CHECKED(without_debugger, 1); |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 13481 | |
| 13482 | Handle<Object> result; |
| 13483 | bool pending_exception; |
| 13484 | { |
| 13485 | if (without_debugger) { |
jkummerow@chromium.org | 2c9426b | 2013-09-05 16:31:13 +0000 | [diff] [blame] | 13486 | result = Execution::Call(isolate, |
| 13487 | function, |
| 13488 | isolate->global_object(), |
| 13489 | 0, |
| 13490 | NULL, |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 13491 | &pending_exception); |
| 13492 | } else { |
mstarzinger@chromium.org | e900018 | 2013-09-03 11:25:39 +0000 | [diff] [blame] | 13493 | EnterDebugger enter_debugger(isolate); |
jkummerow@chromium.org | 2c9426b | 2013-09-05 16:31:13 +0000 | [diff] [blame] | 13494 | result = Execution::Call(isolate, |
| 13495 | function, |
| 13496 | isolate->global_object(), |
| 13497 | 0, |
| 13498 | NULL, |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 13499 | &pending_exception); |
| 13500 | } |
| 13501 | } |
| 13502 | if (!pending_exception) { |
| 13503 | return *result; |
| 13504 | } else { |
| 13505 | return Failure::Exception(); |
| 13506 | } |
| 13507 | } |
| 13508 | |
| 13509 | |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 13510 | // Sets a v8 flag. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 13511 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SetFlags) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 13512 | SealHandleScope shs(isolate); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 13513 | CONVERT_ARG_CHECKED(String, arg, 0); |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 13514 | SmartArrayPointer<char> flags = |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 13515 | arg->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
machenbach@chromium.org | afbdadc | 2013-12-09 16:12:18 +0000 | [diff] [blame] | 13516 | FlagList::SetFlagsFromString(flags.get(), StrLength(flags.get())); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 13517 | return isolate->heap()->undefined_value(); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 13518 | } |
| 13519 | |
| 13520 | |
| 13521 | // Performs a GC. |
| 13522 | // Presently, it only does a full GC. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 13523 | RUNTIME_FUNCTION(MaybeObject*, Runtime_CollectGarbage) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 13524 | SealHandleScope shs(isolate); |
erik.corry@gmail.com | bbceb57 | 2012-03-09 10:52:05 +0000 | [diff] [blame] | 13525 | isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags, "%CollectGarbage"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 13526 | return isolate->heap()->undefined_value(); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 13527 | } |
| 13528 | |
| 13529 | |
| 13530 | // Gets the current heap usage. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 13531 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetHeapUsage) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 13532 | SealHandleScope shs(isolate); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 13533 | int usage = static_cast<int>(isolate->heap()->SizeOfObjects()); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 13534 | if (!Smi::IsValid(usage)) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 13535 | return *isolate->factory()->NewNumberFromInt(usage); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 13536 | } |
| 13537 | return Smi::FromInt(usage); |
| 13538 | } |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 13539 | |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 13540 | #endif // ENABLE_DEBUGGER_SUPPORT |
| 13541 | |
sgjesse@chromium.org | ac6aa17 | 2009-12-04 12:29:05 +0000 | [diff] [blame] | 13542 | |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 13543 | #ifdef V8_I18N_SUPPORT |
| 13544 | RUNTIME_FUNCTION(MaybeObject*, Runtime_CanonicalizeLanguageTag) { |
| 13545 | HandleScope scope(isolate); |
| 13546 | |
| 13547 | ASSERT(args.length() == 1); |
| 13548 | CONVERT_ARG_HANDLE_CHECKED(String, locale_id_str, 0); |
| 13549 | |
| 13550 | v8::String::Utf8Value locale_id(v8::Utils::ToLocal(locale_id_str)); |
| 13551 | |
| 13552 | // Return value which denotes invalid language tag. |
| 13553 | const char* const kInvalidTag = "invalid-tag"; |
| 13554 | |
| 13555 | UErrorCode error = U_ZERO_ERROR; |
| 13556 | char icu_result[ULOC_FULLNAME_CAPACITY]; |
| 13557 | int icu_length = 0; |
| 13558 | |
| 13559 | uloc_forLanguageTag(*locale_id, icu_result, ULOC_FULLNAME_CAPACITY, |
| 13560 | &icu_length, &error); |
| 13561 | if (U_FAILURE(error) || icu_length == 0) { |
| 13562 | return isolate->heap()->AllocateStringFromOneByte(CStrVector(kInvalidTag)); |
| 13563 | } |
| 13564 | |
| 13565 | char result[ULOC_FULLNAME_CAPACITY]; |
| 13566 | |
| 13567 | // Force strict BCP47 rules. |
| 13568 | uloc_toLanguageTag(icu_result, result, ULOC_FULLNAME_CAPACITY, TRUE, &error); |
| 13569 | |
| 13570 | if (U_FAILURE(error)) { |
| 13571 | return isolate->heap()->AllocateStringFromOneByte(CStrVector(kInvalidTag)); |
| 13572 | } |
| 13573 | |
| 13574 | return isolate->heap()->AllocateStringFromOneByte(CStrVector(result)); |
| 13575 | } |
| 13576 | |
| 13577 | |
| 13578 | RUNTIME_FUNCTION(MaybeObject*, Runtime_AvailableLocalesOf) { |
| 13579 | HandleScope scope(isolate); |
| 13580 | |
| 13581 | ASSERT(args.length() == 1); |
| 13582 | CONVERT_ARG_HANDLE_CHECKED(String, service, 0); |
| 13583 | |
| 13584 | const icu::Locale* available_locales = NULL; |
| 13585 | int32_t count = 0; |
| 13586 | |
| 13587 | if (service->IsUtf8EqualTo(CStrVector("collator"))) { |
| 13588 | available_locales = icu::Collator::getAvailableLocales(count); |
| 13589 | } else if (service->IsUtf8EqualTo(CStrVector("numberformat"))) { |
| 13590 | available_locales = icu::NumberFormat::getAvailableLocales(count); |
| 13591 | } else if (service->IsUtf8EqualTo(CStrVector("dateformat"))) { |
| 13592 | available_locales = icu::DateFormat::getAvailableLocales(count); |
| 13593 | } else if (service->IsUtf8EqualTo(CStrVector("breakiterator"))) { |
| 13594 | available_locales = icu::BreakIterator::getAvailableLocales(count); |
| 13595 | } |
| 13596 | |
| 13597 | UErrorCode error = U_ZERO_ERROR; |
| 13598 | char result[ULOC_FULLNAME_CAPACITY]; |
| 13599 | Handle<JSObject> locales = |
| 13600 | isolate->factory()->NewJSObject(isolate->object_function()); |
| 13601 | |
| 13602 | for (int32_t i = 0; i < count; ++i) { |
| 13603 | const char* icu_name = available_locales[i].getName(); |
| 13604 | |
| 13605 | error = U_ZERO_ERROR; |
| 13606 | // No need to force strict BCP47 rules. |
| 13607 | uloc_toLanguageTag(icu_name, result, ULOC_FULLNAME_CAPACITY, FALSE, &error); |
| 13608 | if (U_FAILURE(error)) { |
| 13609 | // This shouldn't happen, but lets not break the user. |
| 13610 | continue; |
| 13611 | } |
| 13612 | |
| 13613 | RETURN_IF_EMPTY_HANDLE(isolate, |
| 13614 | JSObject::SetLocalPropertyIgnoreAttributes( |
| 13615 | locales, |
| 13616 | isolate->factory()->NewStringFromAscii(CStrVector(result)), |
| 13617 | isolate->factory()->NewNumber(i), |
| 13618 | NONE)); |
| 13619 | } |
| 13620 | |
| 13621 | return *locales; |
| 13622 | } |
| 13623 | |
| 13624 | |
| 13625 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetDefaultICULocale) { |
| 13626 | SealHandleScope shs(isolate); |
| 13627 | |
| 13628 | ASSERT(args.length() == 0); |
| 13629 | |
| 13630 | icu::Locale default_locale; |
| 13631 | |
| 13632 | // Set the locale |
| 13633 | char result[ULOC_FULLNAME_CAPACITY]; |
| 13634 | UErrorCode status = U_ZERO_ERROR; |
| 13635 | uloc_toLanguageTag( |
| 13636 | default_locale.getName(), result, ULOC_FULLNAME_CAPACITY, FALSE, &status); |
| 13637 | if (U_SUCCESS(status)) { |
| 13638 | return isolate->heap()->AllocateStringFromOneByte(CStrVector(result)); |
| 13639 | } |
| 13640 | |
| 13641 | return isolate->heap()->AllocateStringFromOneByte(CStrVector("und")); |
| 13642 | } |
| 13643 | |
| 13644 | |
| 13645 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetLanguageTagVariants) { |
| 13646 | HandleScope scope(isolate); |
| 13647 | |
| 13648 | ASSERT(args.length() == 1); |
| 13649 | |
| 13650 | CONVERT_ARG_HANDLE_CHECKED(JSArray, input, 0); |
| 13651 | |
| 13652 | uint32_t length = static_cast<uint32_t>(input->length()->Number()); |
| 13653 | Handle<FixedArray> output = isolate->factory()->NewFixedArray(length); |
| 13654 | Handle<Name> maximized = |
| 13655 | isolate->factory()->NewStringFromAscii(CStrVector("maximized")); |
| 13656 | Handle<Name> base = |
| 13657 | isolate->factory()->NewStringFromAscii(CStrVector("base")); |
| 13658 | for (unsigned int i = 0; i < length; ++i) { |
jkummerow@chromium.org | 3d00d0a | 2013-09-04 13:57:32 +0000 | [diff] [blame] | 13659 | MaybeObject* maybe_string = input->GetElement(isolate, i); |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 13660 | Object* locale_id; |
| 13661 | if (!maybe_string->ToObject(&locale_id) || !locale_id->IsString()) { |
| 13662 | return isolate->Throw(isolate->heap()->illegal_argument_string()); |
| 13663 | } |
| 13664 | |
| 13665 | v8::String::Utf8Value utf8_locale_id( |
| 13666 | v8::Utils::ToLocal(Handle<String>(String::cast(locale_id)))); |
| 13667 | |
| 13668 | UErrorCode error = U_ZERO_ERROR; |
| 13669 | |
| 13670 | // Convert from BCP47 to ICU format. |
| 13671 | // de-DE-u-co-phonebk -> de_DE@collation=phonebook |
| 13672 | char icu_locale[ULOC_FULLNAME_CAPACITY]; |
| 13673 | int icu_locale_length = 0; |
| 13674 | uloc_forLanguageTag(*utf8_locale_id, icu_locale, ULOC_FULLNAME_CAPACITY, |
| 13675 | &icu_locale_length, &error); |
| 13676 | if (U_FAILURE(error) || icu_locale_length == 0) { |
| 13677 | return isolate->Throw(isolate->heap()->illegal_argument_string()); |
| 13678 | } |
| 13679 | |
| 13680 | // Maximize the locale. |
| 13681 | // de_DE@collation=phonebook -> de_Latn_DE@collation=phonebook |
| 13682 | char icu_max_locale[ULOC_FULLNAME_CAPACITY]; |
| 13683 | uloc_addLikelySubtags( |
| 13684 | icu_locale, icu_max_locale, ULOC_FULLNAME_CAPACITY, &error); |
| 13685 | |
| 13686 | // Remove extensions from maximized locale. |
| 13687 | // de_Latn_DE@collation=phonebook -> de_Latn_DE |
| 13688 | char icu_base_max_locale[ULOC_FULLNAME_CAPACITY]; |
| 13689 | uloc_getBaseName( |
| 13690 | icu_max_locale, icu_base_max_locale, ULOC_FULLNAME_CAPACITY, &error); |
| 13691 | |
| 13692 | // Get original name without extensions. |
| 13693 | // de_DE@collation=phonebook -> de_DE |
| 13694 | char icu_base_locale[ULOC_FULLNAME_CAPACITY]; |
| 13695 | uloc_getBaseName( |
| 13696 | icu_locale, icu_base_locale, ULOC_FULLNAME_CAPACITY, &error); |
| 13697 | |
| 13698 | // Convert from ICU locale format to BCP47 format. |
| 13699 | // de_Latn_DE -> de-Latn-DE |
| 13700 | char base_max_locale[ULOC_FULLNAME_CAPACITY]; |
| 13701 | uloc_toLanguageTag(icu_base_max_locale, base_max_locale, |
| 13702 | ULOC_FULLNAME_CAPACITY, FALSE, &error); |
| 13703 | |
| 13704 | // de_DE -> de-DE |
| 13705 | char base_locale[ULOC_FULLNAME_CAPACITY]; |
| 13706 | uloc_toLanguageTag( |
| 13707 | icu_base_locale, base_locale, ULOC_FULLNAME_CAPACITY, FALSE, &error); |
| 13708 | |
| 13709 | if (U_FAILURE(error)) { |
| 13710 | return isolate->Throw(isolate->heap()->illegal_argument_string()); |
| 13711 | } |
| 13712 | |
| 13713 | Handle<JSObject> result = |
| 13714 | isolate->factory()->NewJSObject(isolate->object_function()); |
| 13715 | RETURN_IF_EMPTY_HANDLE(isolate, |
| 13716 | JSObject::SetLocalPropertyIgnoreAttributes( |
| 13717 | result, |
| 13718 | maximized, |
| 13719 | isolate->factory()->NewStringFromAscii(CStrVector(base_max_locale)), |
| 13720 | NONE)); |
| 13721 | RETURN_IF_EMPTY_HANDLE(isolate, |
| 13722 | JSObject::SetLocalPropertyIgnoreAttributes( |
| 13723 | result, |
| 13724 | base, |
| 13725 | isolate->factory()->NewStringFromAscii(CStrVector(base_locale)), |
| 13726 | NONE)); |
| 13727 | output->set(i, *result); |
| 13728 | } |
| 13729 | |
| 13730 | Handle<JSArray> result = isolate->factory()->NewJSArrayWithElements(output); |
| 13731 | result->set_length(Smi::FromInt(length)); |
| 13732 | return *result; |
| 13733 | } |
| 13734 | |
| 13735 | |
| 13736 | RUNTIME_FUNCTION(MaybeObject*, Runtime_CreateDateTimeFormat) { |
| 13737 | HandleScope scope(isolate); |
| 13738 | |
| 13739 | ASSERT(args.length() == 3); |
| 13740 | |
| 13741 | CONVERT_ARG_HANDLE_CHECKED(String, locale, 0); |
| 13742 | CONVERT_ARG_HANDLE_CHECKED(JSObject, options, 1); |
| 13743 | CONVERT_ARG_HANDLE_CHECKED(JSObject, resolved, 2); |
| 13744 | |
| 13745 | Handle<ObjectTemplateInfo> date_format_template = |
| 13746 | I18N::GetTemplate(isolate); |
| 13747 | |
| 13748 | // Create an empty object wrapper. |
| 13749 | bool has_pending_exception = false; |
| 13750 | Handle<JSObject> local_object = Execution::InstantiateObject( |
| 13751 | date_format_template, &has_pending_exception); |
| 13752 | if (has_pending_exception) { |
| 13753 | ASSERT(isolate->has_pending_exception()); |
| 13754 | return Failure::Exception(); |
| 13755 | } |
| 13756 | |
| 13757 | // Set date time formatter as internal field of the resulting JS object. |
| 13758 | icu::SimpleDateFormat* date_format = DateFormat::InitializeDateTimeFormat( |
| 13759 | isolate, locale, options, resolved); |
| 13760 | |
| 13761 | if (!date_format) return isolate->ThrowIllegalOperation(); |
| 13762 | |
| 13763 | local_object->SetInternalField(0, reinterpret_cast<Smi*>(date_format)); |
| 13764 | |
| 13765 | RETURN_IF_EMPTY_HANDLE(isolate, |
| 13766 | JSObject::SetLocalPropertyIgnoreAttributes( |
| 13767 | local_object, |
| 13768 | isolate->factory()->NewStringFromAscii(CStrVector("dateFormat")), |
| 13769 | isolate->factory()->NewStringFromAscii(CStrVector("valid")), |
| 13770 | NONE)); |
| 13771 | |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 13772 | // Make object handle weak so we can delete the data format once GC kicks in. |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 13773 | Handle<Object> wrapper = isolate->global_handles()->Create(*local_object); |
hpayer@chromium.org | 4f99be9 | 2013-12-18 16:23:55 +0000 | [diff] [blame] | 13774 | GlobalHandles::MakeWeak(wrapper.location(), |
| 13775 | reinterpret_cast<void*>(wrapper.location()), |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 13776 | DateFormat::DeleteDateFormat); |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 13777 | return *local_object; |
| 13778 | } |
| 13779 | |
| 13780 | |
| 13781 | RUNTIME_FUNCTION(MaybeObject*, Runtime_InternalDateFormat) { |
| 13782 | HandleScope scope(isolate); |
| 13783 | |
| 13784 | ASSERT(args.length() == 2); |
| 13785 | |
| 13786 | CONVERT_ARG_HANDLE_CHECKED(JSObject, date_format_holder, 0); |
| 13787 | CONVERT_ARG_HANDLE_CHECKED(JSDate, date, 1); |
| 13788 | |
| 13789 | bool has_pending_exception = false; |
mstarzinger@chromium.org | e900018 | 2013-09-03 11:25:39 +0000 | [diff] [blame] | 13790 | Handle<Object> value = |
| 13791 | Execution::ToNumber(isolate, date, &has_pending_exception); |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 13792 | if (has_pending_exception) { |
| 13793 | ASSERT(isolate->has_pending_exception()); |
| 13794 | return Failure::Exception(); |
| 13795 | } |
| 13796 | |
| 13797 | icu::SimpleDateFormat* date_format = |
| 13798 | DateFormat::UnpackDateFormat(isolate, date_format_holder); |
| 13799 | if (!date_format) return isolate->ThrowIllegalOperation(); |
| 13800 | |
| 13801 | icu::UnicodeString result; |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 13802 | date_format->format(value->Number(), result); |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 13803 | |
| 13804 | return *isolate->factory()->NewStringFromTwoByte( |
| 13805 | Vector<const uint16_t>( |
| 13806 | reinterpret_cast<const uint16_t*>(result.getBuffer()), |
| 13807 | result.length())); |
| 13808 | } |
| 13809 | |
| 13810 | |
| 13811 | RUNTIME_FUNCTION(MaybeObject*, Runtime_InternalDateParse) { |
| 13812 | HandleScope scope(isolate); |
| 13813 | |
| 13814 | ASSERT(args.length() == 2); |
| 13815 | |
| 13816 | CONVERT_ARG_HANDLE_CHECKED(JSObject, date_format_holder, 0); |
| 13817 | CONVERT_ARG_HANDLE_CHECKED(String, date_string, 1); |
| 13818 | |
| 13819 | v8::String::Utf8Value utf8_date(v8::Utils::ToLocal(date_string)); |
| 13820 | icu::UnicodeString u_date(icu::UnicodeString::fromUTF8(*utf8_date)); |
| 13821 | icu::SimpleDateFormat* date_format = |
| 13822 | DateFormat::UnpackDateFormat(isolate, date_format_holder); |
| 13823 | if (!date_format) return isolate->ThrowIllegalOperation(); |
| 13824 | |
| 13825 | UErrorCode status = U_ZERO_ERROR; |
| 13826 | UDate date = date_format->parse(u_date, status); |
| 13827 | if (U_FAILURE(status)) return isolate->heap()->undefined_value(); |
| 13828 | |
| 13829 | bool has_pending_exception = false; |
| 13830 | Handle<JSDate> result = Handle<JSDate>::cast( |
mstarzinger@chromium.org | e900018 | 2013-09-03 11:25:39 +0000 | [diff] [blame] | 13831 | Execution::NewDate( |
| 13832 | isolate, static_cast<double>(date), &has_pending_exception)); |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 13833 | if (has_pending_exception) { |
| 13834 | ASSERT(isolate->has_pending_exception()); |
| 13835 | return Failure::Exception(); |
| 13836 | } |
| 13837 | return *result; |
| 13838 | } |
| 13839 | |
| 13840 | |
| 13841 | RUNTIME_FUNCTION(MaybeObject*, Runtime_CreateNumberFormat) { |
| 13842 | HandleScope scope(isolate); |
| 13843 | |
| 13844 | ASSERT(args.length() == 3); |
| 13845 | |
| 13846 | CONVERT_ARG_HANDLE_CHECKED(String, locale, 0); |
| 13847 | CONVERT_ARG_HANDLE_CHECKED(JSObject, options, 1); |
| 13848 | CONVERT_ARG_HANDLE_CHECKED(JSObject, resolved, 2); |
| 13849 | |
| 13850 | Handle<ObjectTemplateInfo> number_format_template = |
| 13851 | I18N::GetTemplate(isolate); |
| 13852 | |
| 13853 | // Create an empty object wrapper. |
| 13854 | bool has_pending_exception = false; |
| 13855 | Handle<JSObject> local_object = Execution::InstantiateObject( |
| 13856 | number_format_template, &has_pending_exception); |
| 13857 | if (has_pending_exception) { |
| 13858 | ASSERT(isolate->has_pending_exception()); |
| 13859 | return Failure::Exception(); |
| 13860 | } |
| 13861 | |
| 13862 | // Set number formatter as internal field of the resulting JS object. |
| 13863 | icu::DecimalFormat* number_format = NumberFormat::InitializeNumberFormat( |
| 13864 | isolate, locale, options, resolved); |
| 13865 | |
| 13866 | if (!number_format) return isolate->ThrowIllegalOperation(); |
| 13867 | |
| 13868 | local_object->SetInternalField(0, reinterpret_cast<Smi*>(number_format)); |
| 13869 | |
| 13870 | RETURN_IF_EMPTY_HANDLE(isolate, |
| 13871 | JSObject::SetLocalPropertyIgnoreAttributes( |
| 13872 | local_object, |
| 13873 | isolate->factory()->NewStringFromAscii(CStrVector("numberFormat")), |
| 13874 | isolate->factory()->NewStringFromAscii(CStrVector("valid")), |
| 13875 | NONE)); |
| 13876 | |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 13877 | Handle<Object> wrapper = isolate->global_handles()->Create(*local_object); |
hpayer@chromium.org | 4f99be9 | 2013-12-18 16:23:55 +0000 | [diff] [blame] | 13878 | GlobalHandles::MakeWeak(wrapper.location(), |
| 13879 | reinterpret_cast<void*>(wrapper.location()), |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 13880 | NumberFormat::DeleteNumberFormat); |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 13881 | return *local_object; |
| 13882 | } |
| 13883 | |
| 13884 | |
| 13885 | RUNTIME_FUNCTION(MaybeObject*, Runtime_InternalNumberFormat) { |
| 13886 | HandleScope scope(isolate); |
| 13887 | |
| 13888 | ASSERT(args.length() == 2); |
| 13889 | |
| 13890 | CONVERT_ARG_HANDLE_CHECKED(JSObject, number_format_holder, 0); |
| 13891 | CONVERT_ARG_HANDLE_CHECKED(Object, number, 1); |
| 13892 | |
| 13893 | bool has_pending_exception = false; |
mstarzinger@chromium.org | e900018 | 2013-09-03 11:25:39 +0000 | [diff] [blame] | 13894 | Handle<Object> value = Execution::ToNumber( |
| 13895 | isolate, number, &has_pending_exception); |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 13896 | if (has_pending_exception) { |
| 13897 | ASSERT(isolate->has_pending_exception()); |
| 13898 | return Failure::Exception(); |
| 13899 | } |
| 13900 | |
| 13901 | icu::DecimalFormat* number_format = |
| 13902 | NumberFormat::UnpackNumberFormat(isolate, number_format_holder); |
| 13903 | if (!number_format) return isolate->ThrowIllegalOperation(); |
| 13904 | |
| 13905 | icu::UnicodeString result; |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 13906 | number_format->format(value->Number(), result); |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 13907 | |
| 13908 | return *isolate->factory()->NewStringFromTwoByte( |
| 13909 | Vector<const uint16_t>( |
| 13910 | reinterpret_cast<const uint16_t*>(result.getBuffer()), |
| 13911 | result.length())); |
| 13912 | } |
| 13913 | |
| 13914 | |
| 13915 | RUNTIME_FUNCTION(MaybeObject*, Runtime_InternalNumberParse) { |
| 13916 | HandleScope scope(isolate); |
| 13917 | |
| 13918 | ASSERT(args.length() == 2); |
| 13919 | |
| 13920 | CONVERT_ARG_HANDLE_CHECKED(JSObject, number_format_holder, 0); |
| 13921 | CONVERT_ARG_HANDLE_CHECKED(String, number_string, 1); |
| 13922 | |
| 13923 | v8::String::Utf8Value utf8_number(v8::Utils::ToLocal(number_string)); |
| 13924 | icu::UnicodeString u_number(icu::UnicodeString::fromUTF8(*utf8_number)); |
| 13925 | icu::DecimalFormat* number_format = |
| 13926 | NumberFormat::UnpackNumberFormat(isolate, number_format_holder); |
| 13927 | if (!number_format) return isolate->ThrowIllegalOperation(); |
| 13928 | |
| 13929 | UErrorCode status = U_ZERO_ERROR; |
| 13930 | icu::Formattable result; |
| 13931 | // ICU 4.6 doesn't support parseCurrency call. We need to wait for ICU49 |
| 13932 | // to be part of Chrome. |
| 13933 | // TODO(cira): Include currency parsing code using parseCurrency call. |
| 13934 | // We need to check if the formatter parses all currencies or only the |
| 13935 | // one it was constructed with (it will impact the API - how to return ISO |
| 13936 | // code and the value). |
| 13937 | number_format->parse(u_number, result, status); |
| 13938 | if (U_FAILURE(status)) return isolate->heap()->undefined_value(); |
| 13939 | |
| 13940 | switch (result.getType()) { |
| 13941 | case icu::Formattable::kDouble: |
| 13942 | return *isolate->factory()->NewNumber(result.getDouble()); |
| 13943 | case icu::Formattable::kLong: |
| 13944 | return *isolate->factory()->NewNumberFromInt(result.getLong()); |
| 13945 | case icu::Formattable::kInt64: |
| 13946 | return *isolate->factory()->NewNumber( |
| 13947 | static_cast<double>(result.getInt64())); |
| 13948 | default: |
| 13949 | return isolate->heap()->undefined_value(); |
| 13950 | } |
| 13951 | } |
| 13952 | |
| 13953 | |
| 13954 | RUNTIME_FUNCTION(MaybeObject*, Runtime_CreateCollator) { |
| 13955 | HandleScope scope(isolate); |
| 13956 | |
| 13957 | ASSERT(args.length() == 3); |
| 13958 | |
| 13959 | CONVERT_ARG_HANDLE_CHECKED(String, locale, 0); |
| 13960 | CONVERT_ARG_HANDLE_CHECKED(JSObject, options, 1); |
| 13961 | CONVERT_ARG_HANDLE_CHECKED(JSObject, resolved, 2); |
| 13962 | |
| 13963 | Handle<ObjectTemplateInfo> collator_template = I18N::GetTemplate(isolate); |
| 13964 | |
| 13965 | // Create an empty object wrapper. |
| 13966 | bool has_pending_exception = false; |
| 13967 | Handle<JSObject> local_object = Execution::InstantiateObject( |
| 13968 | collator_template, &has_pending_exception); |
| 13969 | if (has_pending_exception) { |
| 13970 | ASSERT(isolate->has_pending_exception()); |
| 13971 | return Failure::Exception(); |
| 13972 | } |
| 13973 | |
| 13974 | // Set collator as internal field of the resulting JS object. |
| 13975 | icu::Collator* collator = Collator::InitializeCollator( |
| 13976 | isolate, locale, options, resolved); |
| 13977 | |
| 13978 | if (!collator) return isolate->ThrowIllegalOperation(); |
| 13979 | |
| 13980 | local_object->SetInternalField(0, reinterpret_cast<Smi*>(collator)); |
| 13981 | |
| 13982 | RETURN_IF_EMPTY_HANDLE(isolate, |
| 13983 | JSObject::SetLocalPropertyIgnoreAttributes( |
| 13984 | local_object, |
| 13985 | isolate->factory()->NewStringFromAscii(CStrVector("collator")), |
| 13986 | isolate->factory()->NewStringFromAscii(CStrVector("valid")), |
| 13987 | NONE)); |
| 13988 | |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 13989 | Handle<Object> wrapper = isolate->global_handles()->Create(*local_object); |
hpayer@chromium.org | 4f99be9 | 2013-12-18 16:23:55 +0000 | [diff] [blame] | 13990 | GlobalHandles::MakeWeak(wrapper.location(), |
| 13991 | reinterpret_cast<void*>(wrapper.location()), |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 13992 | Collator::DeleteCollator); |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 13993 | return *local_object; |
| 13994 | } |
| 13995 | |
| 13996 | |
| 13997 | RUNTIME_FUNCTION(MaybeObject*, Runtime_InternalCompare) { |
| 13998 | HandleScope scope(isolate); |
| 13999 | |
| 14000 | ASSERT(args.length() == 3); |
| 14001 | |
| 14002 | CONVERT_ARG_HANDLE_CHECKED(JSObject, collator_holder, 0); |
| 14003 | CONVERT_ARG_HANDLE_CHECKED(String, string1, 1); |
| 14004 | CONVERT_ARG_HANDLE_CHECKED(String, string2, 2); |
| 14005 | |
| 14006 | icu::Collator* collator = Collator::UnpackCollator(isolate, collator_holder); |
| 14007 | if (!collator) return isolate->ThrowIllegalOperation(); |
| 14008 | |
| 14009 | v8::String::Value string_value1(v8::Utils::ToLocal(string1)); |
| 14010 | v8::String::Value string_value2(v8::Utils::ToLocal(string2)); |
| 14011 | const UChar* u_string1 = reinterpret_cast<const UChar*>(*string_value1); |
| 14012 | const UChar* u_string2 = reinterpret_cast<const UChar*>(*string_value2); |
| 14013 | UErrorCode status = U_ZERO_ERROR; |
| 14014 | UCollationResult result = collator->compare(u_string1, |
| 14015 | string_value1.length(), |
| 14016 | u_string2, |
| 14017 | string_value2.length(), |
| 14018 | status); |
| 14019 | if (U_FAILURE(status)) return isolate->ThrowIllegalOperation(); |
| 14020 | |
| 14021 | return *isolate->factory()->NewNumberFromInt(result); |
| 14022 | } |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 14023 | |
| 14024 | |
| 14025 | RUNTIME_FUNCTION(MaybeObject*, Runtime_CreateBreakIterator) { |
| 14026 | HandleScope scope(isolate); |
| 14027 | |
| 14028 | ASSERT(args.length() == 3); |
| 14029 | |
| 14030 | CONVERT_ARG_HANDLE_CHECKED(String, locale, 0); |
| 14031 | CONVERT_ARG_HANDLE_CHECKED(JSObject, options, 1); |
| 14032 | CONVERT_ARG_HANDLE_CHECKED(JSObject, resolved, 2); |
| 14033 | |
| 14034 | Handle<ObjectTemplateInfo> break_iterator_template = |
| 14035 | I18N::GetTemplate2(isolate); |
| 14036 | |
| 14037 | // Create an empty object wrapper. |
| 14038 | bool has_pending_exception = false; |
| 14039 | Handle<JSObject> local_object = Execution::InstantiateObject( |
| 14040 | break_iterator_template, &has_pending_exception); |
| 14041 | if (has_pending_exception) { |
| 14042 | ASSERT(isolate->has_pending_exception()); |
| 14043 | return Failure::Exception(); |
| 14044 | } |
| 14045 | |
| 14046 | // Set break iterator as internal field of the resulting JS object. |
| 14047 | icu::BreakIterator* break_iterator = BreakIterator::InitializeBreakIterator( |
| 14048 | isolate, locale, options, resolved); |
| 14049 | |
| 14050 | if (!break_iterator) return isolate->ThrowIllegalOperation(); |
| 14051 | |
| 14052 | local_object->SetInternalField(0, reinterpret_cast<Smi*>(break_iterator)); |
| 14053 | // Make sure that the pointer to adopted text is NULL. |
| 14054 | local_object->SetInternalField(1, reinterpret_cast<Smi*>(NULL)); |
| 14055 | |
| 14056 | RETURN_IF_EMPTY_HANDLE(isolate, |
| 14057 | JSObject::SetLocalPropertyIgnoreAttributes( |
| 14058 | local_object, |
| 14059 | isolate->factory()->NewStringFromAscii(CStrVector("breakIterator")), |
| 14060 | isolate->factory()->NewStringFromAscii(CStrVector("valid")), |
| 14061 | NONE)); |
| 14062 | |
| 14063 | // Make object handle weak so we can delete the break iterator once GC kicks |
| 14064 | // in. |
| 14065 | Handle<Object> wrapper = isolate->global_handles()->Create(*local_object); |
hpayer@chromium.org | 4f99be9 | 2013-12-18 16:23:55 +0000 | [diff] [blame] | 14066 | GlobalHandles::MakeWeak(wrapper.location(), |
| 14067 | reinterpret_cast<void*>(wrapper.location()), |
verwaest@chromium.org | 32cb9b2 | 2013-08-21 11:18:12 +0000 | [diff] [blame] | 14068 | BreakIterator::DeleteBreakIterator); |
| 14069 | return *local_object; |
| 14070 | } |
| 14071 | |
| 14072 | |
| 14073 | RUNTIME_FUNCTION(MaybeObject*, Runtime_BreakIteratorAdoptText) { |
| 14074 | HandleScope scope(isolate); |
| 14075 | |
| 14076 | ASSERT(args.length() == 2); |
| 14077 | |
| 14078 | CONVERT_ARG_HANDLE_CHECKED(JSObject, break_iterator_holder, 0); |
| 14079 | CONVERT_ARG_HANDLE_CHECKED(String, text, 1); |
| 14080 | |
| 14081 | icu::BreakIterator* break_iterator = |
| 14082 | BreakIterator::UnpackBreakIterator(isolate, break_iterator_holder); |
| 14083 | if (!break_iterator) return isolate->ThrowIllegalOperation(); |
| 14084 | |
| 14085 | icu::UnicodeString* u_text = reinterpret_cast<icu::UnicodeString*>( |
| 14086 | break_iterator_holder->GetInternalField(1)); |
| 14087 | delete u_text; |
| 14088 | |
| 14089 | v8::String::Value text_value(v8::Utils::ToLocal(text)); |
| 14090 | u_text = new icu::UnicodeString( |
| 14091 | reinterpret_cast<const UChar*>(*text_value), text_value.length()); |
| 14092 | break_iterator_holder->SetInternalField(1, reinterpret_cast<Smi*>(u_text)); |
| 14093 | |
| 14094 | break_iterator->setText(*u_text); |
| 14095 | |
| 14096 | return isolate->heap()->undefined_value(); |
| 14097 | } |
| 14098 | |
| 14099 | |
| 14100 | RUNTIME_FUNCTION(MaybeObject*, Runtime_BreakIteratorFirst) { |
| 14101 | HandleScope scope(isolate); |
| 14102 | |
| 14103 | ASSERT(args.length() == 1); |
| 14104 | |
| 14105 | CONVERT_ARG_HANDLE_CHECKED(JSObject, break_iterator_holder, 0); |
| 14106 | |
| 14107 | icu::BreakIterator* break_iterator = |
| 14108 | BreakIterator::UnpackBreakIterator(isolate, break_iterator_holder); |
| 14109 | if (!break_iterator) return isolate->ThrowIllegalOperation(); |
| 14110 | |
| 14111 | return *isolate->factory()->NewNumberFromInt(break_iterator->first()); |
| 14112 | } |
| 14113 | |
| 14114 | |
| 14115 | RUNTIME_FUNCTION(MaybeObject*, Runtime_BreakIteratorNext) { |
| 14116 | HandleScope scope(isolate); |
| 14117 | |
| 14118 | ASSERT(args.length() == 1); |
| 14119 | |
| 14120 | CONVERT_ARG_HANDLE_CHECKED(JSObject, break_iterator_holder, 0); |
| 14121 | |
| 14122 | icu::BreakIterator* break_iterator = |
| 14123 | BreakIterator::UnpackBreakIterator(isolate, break_iterator_holder); |
| 14124 | if (!break_iterator) return isolate->ThrowIllegalOperation(); |
| 14125 | |
| 14126 | return *isolate->factory()->NewNumberFromInt(break_iterator->next()); |
| 14127 | } |
| 14128 | |
| 14129 | |
| 14130 | RUNTIME_FUNCTION(MaybeObject*, Runtime_BreakIteratorCurrent) { |
| 14131 | HandleScope scope(isolate); |
| 14132 | |
| 14133 | ASSERT(args.length() == 1); |
| 14134 | |
| 14135 | CONVERT_ARG_HANDLE_CHECKED(JSObject, break_iterator_holder, 0); |
| 14136 | |
| 14137 | icu::BreakIterator* break_iterator = |
| 14138 | BreakIterator::UnpackBreakIterator(isolate, break_iterator_holder); |
| 14139 | if (!break_iterator) return isolate->ThrowIllegalOperation(); |
| 14140 | |
| 14141 | return *isolate->factory()->NewNumberFromInt(break_iterator->current()); |
| 14142 | } |
| 14143 | |
| 14144 | |
| 14145 | RUNTIME_FUNCTION(MaybeObject*, Runtime_BreakIteratorBreakType) { |
| 14146 | HandleScope scope(isolate); |
| 14147 | |
| 14148 | ASSERT(args.length() == 1); |
| 14149 | |
| 14150 | CONVERT_ARG_HANDLE_CHECKED(JSObject, break_iterator_holder, 0); |
| 14151 | |
| 14152 | icu::BreakIterator* break_iterator = |
| 14153 | BreakIterator::UnpackBreakIterator(isolate, break_iterator_holder); |
| 14154 | if (!break_iterator) return isolate->ThrowIllegalOperation(); |
| 14155 | |
| 14156 | // TODO(cira): Remove cast once ICU fixes base BreakIterator class. |
| 14157 | icu::RuleBasedBreakIterator* rule_based_iterator = |
| 14158 | static_cast<icu::RuleBasedBreakIterator*>(break_iterator); |
| 14159 | int32_t status = rule_based_iterator->getRuleStatus(); |
| 14160 | // Keep return values in sync with JavaScript BreakType enum. |
| 14161 | if (status >= UBRK_WORD_NONE && status < UBRK_WORD_NONE_LIMIT) { |
| 14162 | return *isolate->factory()->NewStringFromAscii(CStrVector("none")); |
| 14163 | } else if (status >= UBRK_WORD_NUMBER && status < UBRK_WORD_NUMBER_LIMIT) { |
| 14164 | return *isolate->factory()->NewStringFromAscii(CStrVector("number")); |
| 14165 | } else if (status >= UBRK_WORD_LETTER && status < UBRK_WORD_LETTER_LIMIT) { |
| 14166 | return *isolate->factory()->NewStringFromAscii(CStrVector("letter")); |
| 14167 | } else if (status >= UBRK_WORD_KANA && status < UBRK_WORD_KANA_LIMIT) { |
| 14168 | return *isolate->factory()->NewStringFromAscii(CStrVector("kana")); |
| 14169 | } else if (status >= UBRK_WORD_IDEO && status < UBRK_WORD_IDEO_LIMIT) { |
| 14170 | return *isolate->factory()->NewStringFromAscii(CStrVector("ideo")); |
| 14171 | } else { |
| 14172 | return *isolate->factory()->NewStringFromAscii(CStrVector("unknown")); |
| 14173 | } |
| 14174 | } |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 14175 | #endif // V8_I18N_SUPPORT |
| 14176 | |
| 14177 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 14178 | // Finds the script object from the script data. NOTE: This operation uses |
| 14179 | // heap traversal to find the function generated for the source position |
| 14180 | // for the requested break point. For lazily compiled functions several heap |
| 14181 | // traversals might be required rendering this operation as a rather slow |
| 14182 | // operation. However for setting break points which is normally done through |
| 14183 | // some kind of user interaction the performance is not crucial. |
| 14184 | static Handle<Object> Runtime_GetScriptFromScriptName( |
| 14185 | Handle<String> script_name) { |
| 14186 | // Scan the heap for Script objects to find the script with the requested |
| 14187 | // script data. |
| 14188 | Handle<Script> script; |
verwaest@chromium.org | d4be0f0 | 2013-06-05 13:39:03 +0000 | [diff] [blame] | 14189 | Factory* factory = script_name->GetIsolate()->factory(); |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 14190 | Heap* heap = script_name->GetHeap(); |
| 14191 | heap->EnsureHeapIsIterable(); |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 14192 | DisallowHeapAllocation no_allocation_during_heap_iteration; |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 14193 | HeapIterator iterator(heap); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 14194 | HeapObject* obj = NULL; |
| 14195 | while (script.is_null() && ((obj = iterator.next()) != NULL)) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 14196 | // If a script is found check if it has the script data requested. |
| 14197 | if (obj->IsScript()) { |
| 14198 | if (Script::cast(obj)->name()->IsString()) { |
| 14199 | if (String::cast(Script::cast(obj)->name())->Equals(*script_name)) { |
| 14200 | script = Handle<Script>(Script::cast(obj)); |
| 14201 | } |
| 14202 | } |
| 14203 | } |
| 14204 | } |
| 14205 | |
| 14206 | // If no script with the requested script data is found return undefined. |
verwaest@chromium.org | d4be0f0 | 2013-06-05 13:39:03 +0000 | [diff] [blame] | 14207 | if (script.is_null()) return factory->undefined_value(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 14208 | |
| 14209 | // Return the script found. |
| 14210 | return GetScriptWrapper(script); |
| 14211 | } |
| 14212 | |
| 14213 | |
| 14214 | // Get the script object from script data. NOTE: Regarding performance |
| 14215 | // see the NOTE for GetScriptFromScriptData. |
| 14216 | // args[0]: script data for the script to find the source for |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 14217 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetScript) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 14218 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 14219 | |
| 14220 | ASSERT(args.length() == 1); |
| 14221 | |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 14222 | CONVERT_ARG_CHECKED(String, script_name, 0); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 14223 | |
| 14224 | // Find the requested script. |
| 14225 | Handle<Object> result = |
| 14226 | Runtime_GetScriptFromScriptName(Handle<String>(script_name)); |
| 14227 | return *result; |
| 14228 | } |
| 14229 | |
| 14230 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 14231 | // Collect the raw data for a stack trace. Returns an array of 4 |
| 14232 | // element segments each containing a receiver, function, code and |
| 14233 | // native code offset. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 14234 | RUNTIME_FUNCTION(MaybeObject*, Runtime_CollectStackTrace) { |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 14235 | HandleScope scope(isolate); |
jkummerow@chromium.org | ab7dad4 | 2012-02-07 12:07:34 +0000 | [diff] [blame] | 14236 | ASSERT_EQ(args.length(), 3); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 14237 | CONVERT_ARG_HANDLE_CHECKED(JSObject, error_object, 0); |
jkummerow@chromium.org | ab7dad4 | 2012-02-07 12:07:34 +0000 | [diff] [blame] | 14238 | Handle<Object> caller = args.at<Object>(1); |
| 14239 | CONVERT_NUMBER_CHECKED(int32_t, limit, Int32, args[2]); |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 14240 | |
yangguo@chromium.org | eeb44b6 | 2012-11-13 13:56:09 +0000 | [diff] [blame] | 14241 | // Optionally capture a more detailed stack trace for the message. |
| 14242 | isolate->CaptureAndSetDetailedStackTrace(error_object); |
| 14243 | // Capture a simple stack trace for the stack property. |
| 14244 | return *isolate->CaptureSimpleStackTrace(error_object, caller, limit); |
| 14245 | } |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 14246 | |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 14247 | |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 14248 | // Retrieve the stack trace. This is the raw stack trace that yet has to |
| 14249 | // be formatted. Since we only need this once, clear it afterwards. |
| 14250 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetAndClearOverflowedStackTrace) { |
yangguo@chromium.org | 46a2a51 | 2013-01-18 16:29:40 +0000 | [diff] [blame] | 14251 | HandleScope scope(isolate); |
yangguo@chromium.org | eeb44b6 | 2012-11-13 13:56:09 +0000 | [diff] [blame] | 14252 | ASSERT_EQ(args.length(), 1); |
jkummerow@chromium.org | 8fa5bd9 | 2013-09-02 11:45:09 +0000 | [diff] [blame] | 14253 | CONVERT_ARG_HANDLE_CHECKED(JSObject, error_object, 0); |
| 14254 | Handle<String> key = isolate->factory()->hidden_stack_trace_string(); |
| 14255 | Handle<Object> result(error_object->GetHiddenProperty(*key), isolate); |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 14256 | if (result->IsTheHole()) return isolate->heap()->undefined_value(); |
| 14257 | RUNTIME_ASSERT(result->IsJSArray() || result->IsUndefined()); |
jkummerow@chromium.org | 8fa5bd9 | 2013-09-02 11:45:09 +0000 | [diff] [blame] | 14258 | JSObject::DeleteHiddenProperty(error_object, key); |
| 14259 | return *result; |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 14260 | } |
| 14261 | |
| 14262 | |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 14263 | // Returns V8 version as a string. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 14264 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetV8Version) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 14265 | SealHandleScope shs(isolate); |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 14266 | ASSERT_EQ(args.length(), 0); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 14267 | |
| 14268 | const char* version_string = v8::V8::GetVersion(); |
| 14269 | |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 14270 | return isolate->heap()->AllocateStringFromOneByte(CStrVector(version_string), |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 14271 | NOT_TENURED); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 14272 | } |
| 14273 | |
| 14274 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 14275 | RUNTIME_FUNCTION(MaybeObject*, Runtime_Abort) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 14276 | SealHandleScope shs(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 14277 | ASSERT(args.length() == 2); |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 14278 | OS::PrintError("abort: %s\n", |
| 14279 | reinterpret_cast<char*>(args[0]) + args.smi_at(1)); |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 14280 | isolate->PrintStack(stderr); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 14281 | OS::Abort(); |
| 14282 | UNREACHABLE(); |
| 14283 | return NULL; |
| 14284 | } |
| 14285 | |
| 14286 | |
machenbach@chromium.org | 9f18d91 | 2013-11-28 13:42:41 +0000 | [diff] [blame] | 14287 | RUNTIME_FUNCTION(MaybeObject*, Runtime_AbortJS) { |
| 14288 | HandleScope scope(isolate); |
| 14289 | ASSERT(args.length() == 1); |
| 14290 | CONVERT_ARG_HANDLE_CHECKED(String, message, 0); |
machenbach@chromium.org | afbdadc | 2013-12-09 16:12:18 +0000 | [diff] [blame] | 14291 | OS::PrintError("abort: %s\n", message->ToCString().get()); |
machenbach@chromium.org | 9f18d91 | 2013-11-28 13:42:41 +0000 | [diff] [blame] | 14292 | isolate->PrintStack(stderr); |
| 14293 | OS::Abort(); |
| 14294 | UNREACHABLE(); |
| 14295 | return NULL; |
| 14296 | } |
| 14297 | |
| 14298 | |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 14299 | RUNTIME_FUNCTION(MaybeObject*, Runtime_FlattenString) { |
| 14300 | HandleScope scope(isolate); |
| 14301 | ASSERT(args.length() == 1); |
| 14302 | CONVERT_ARG_HANDLE_CHECKED(String, str, 0); |
| 14303 | FlattenString(str); |
| 14304 | return isolate->heap()->undefined_value(); |
| 14305 | } |
| 14306 | |
| 14307 | |
verwaest@chromium.org | ec6855e | 2013-08-22 12:26:58 +0000 | [diff] [blame] | 14308 | RUNTIME_FUNCTION(MaybeObject*, Runtime_NotifyContextDisposed) { |
| 14309 | HandleScope scope(isolate); |
| 14310 | ASSERT(args.length() == 0); |
| 14311 | isolate->heap()->NotifyContextDisposed(); |
| 14312 | return isolate->heap()->undefined_value(); |
| 14313 | } |
| 14314 | |
| 14315 | |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 14316 | RUNTIME_FUNCTION(MaybeObject*, Runtime_MigrateInstance) { |
| 14317 | HandleScope scope(isolate); |
| 14318 | ASSERT(args.length() == 1); |
| 14319 | CONVERT_ARG_HANDLE_CHECKED(Object, object, 0); |
| 14320 | if (!object->IsJSObject()) return Smi::FromInt(0); |
| 14321 | Handle<JSObject> js_object = Handle<JSObject>::cast(object); |
| 14322 | if (!js_object->map()->is_deprecated()) return Smi::FromInt(0); |
| 14323 | JSObject::MigrateInstance(js_object); |
| 14324 | return *object; |
| 14325 | } |
| 14326 | |
| 14327 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 14328 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetFromCache) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 14329 | SealHandleScope shs(isolate); |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 14330 | // This is only called from codegen, so checks might be more lax. |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 14331 | CONVERT_ARG_CHECKED(JSFunctionResultCache, cache, 0); |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 14332 | Object* key = args[1]; |
| 14333 | |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 14334 | int finger_index = cache->finger_index(); |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 14335 | Object* o = cache->get(finger_index); |
| 14336 | if (o == key) { |
| 14337 | // The fastest case: hit the same place again. |
| 14338 | return cache->get(finger_index + 1); |
| 14339 | } |
| 14340 | |
| 14341 | for (int i = finger_index - 2; |
| 14342 | i >= JSFunctionResultCache::kEntriesIndex; |
| 14343 | i -= 2) { |
| 14344 | o = cache->get(i); |
| 14345 | if (o == key) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 14346 | cache->set_finger_index(i); |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 14347 | return cache->get(i + 1); |
| 14348 | } |
| 14349 | } |
| 14350 | |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 14351 | int size = cache->size(); |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 14352 | ASSERT(size <= cache->length()); |
| 14353 | |
| 14354 | for (int i = size - 2; i > finger_index; i -= 2) { |
| 14355 | o = cache->get(i); |
| 14356 | if (o == key) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 14357 | cache->set_finger_index(i); |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 14358 | return cache->get(i + 1); |
| 14359 | } |
| 14360 | } |
| 14361 | |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 14362 | // There is no value in the cache. Invoke the function and cache result. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 14363 | HandleScope scope(isolate); |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 14364 | |
| 14365 | Handle<JSFunctionResultCache> cache_handle(cache); |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 14366 | Handle<Object> key_handle(key, isolate); |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 14367 | Handle<Object> value; |
| 14368 | { |
| 14369 | Handle<JSFunction> factory(JSFunction::cast( |
| 14370 | cache_handle->get(JSFunctionResultCache::kFactoryIndex))); |
| 14371 | // TODO(antonm): consider passing a receiver when constructing a cache. |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 14372 | Handle<Object> receiver(isolate->native_context()->global_object(), |
| 14373 | isolate); |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 14374 | // This handle is nor shared, nor used later, so it's safe. |
svenpanne@chromium.org | a8bb4d9 | 2011-10-10 13:20:40 +0000 | [diff] [blame] | 14375 | Handle<Object> argv[] = { key_handle }; |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 14376 | bool pending_exception; |
jkummerow@chromium.org | 2c9426b | 2013-09-05 16:31:13 +0000 | [diff] [blame] | 14377 | value = Execution::Call(isolate, |
| 14378 | factory, |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 14379 | receiver, |
svenpanne@chromium.org | a8bb4d9 | 2011-10-10 13:20:40 +0000 | [diff] [blame] | 14380 | ARRAY_SIZE(argv), |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 14381 | argv, |
| 14382 | &pending_exception); |
| 14383 | if (pending_exception) return Failure::Exception(); |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 14384 | } |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 14385 | |
svenpanne@chromium.org | c859c4f | 2012-10-15 11:51:39 +0000 | [diff] [blame] | 14386 | #ifdef VERIFY_HEAP |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 14387 | if (FLAG_verify_heap) { |
| 14388 | cache_handle->JSFunctionResultCacheVerify(); |
| 14389 | } |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 14390 | #endif |
| 14391 | |
| 14392 | // Function invocation may have cleared the cache. Reread all the data. |
| 14393 | finger_index = cache_handle->finger_index(); |
| 14394 | size = cache_handle->size(); |
| 14395 | |
| 14396 | // If we have spare room, put new data into it, otherwise evict post finger |
| 14397 | // entry which is likely to be the least recently used. |
| 14398 | int index = -1; |
| 14399 | if (size < cache_handle->length()) { |
| 14400 | cache_handle->set_size(size + JSFunctionResultCache::kEntrySize); |
| 14401 | index = size; |
| 14402 | } else { |
| 14403 | index = finger_index + JSFunctionResultCache::kEntrySize; |
| 14404 | if (index == cache_handle->length()) { |
| 14405 | index = JSFunctionResultCache::kEntriesIndex; |
| 14406 | } |
| 14407 | } |
| 14408 | |
| 14409 | ASSERT(index % 2 == 0); |
| 14410 | ASSERT(index >= JSFunctionResultCache::kEntriesIndex); |
| 14411 | ASSERT(index < cache_handle->length()); |
| 14412 | |
| 14413 | cache_handle->set(index, *key_handle); |
| 14414 | cache_handle->set(index + 1, *value); |
| 14415 | cache_handle->set_finger_index(index); |
| 14416 | |
svenpanne@chromium.org | c859c4f | 2012-10-15 11:51:39 +0000 | [diff] [blame] | 14417 | #ifdef VERIFY_HEAP |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 14418 | if (FLAG_verify_heap) { |
| 14419 | cache_handle->JSFunctionResultCacheVerify(); |
| 14420 | } |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 14421 | #endif |
| 14422 | |
| 14423 | return *value; |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 14424 | } |
| 14425 | |
kmillikin@chromium.org | 31b1277 | 2011-02-02 16:08:26 +0000 | [diff] [blame] | 14426 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 14427 | RUNTIME_FUNCTION(MaybeObject*, Runtime_MessageGetStartPosition) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 14428 | SealHandleScope shs(isolate); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 14429 | CONVERT_ARG_CHECKED(JSMessageObject, message, 0); |
kmillikin@chromium.org | 31b1277 | 2011-02-02 16:08:26 +0000 | [diff] [blame] | 14430 | return Smi::FromInt(message->start_position()); |
| 14431 | } |
| 14432 | |
| 14433 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 14434 | RUNTIME_FUNCTION(MaybeObject*, Runtime_MessageGetScript) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 14435 | SealHandleScope shs(isolate); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 14436 | CONVERT_ARG_CHECKED(JSMessageObject, message, 0); |
kmillikin@chromium.org | 31b1277 | 2011-02-02 16:08:26 +0000 | [diff] [blame] | 14437 | return message->script(); |
| 14438 | } |
| 14439 | |
| 14440 | |
kasper.lund | 4451067 | 2008-07-25 07:37:58 +0000 | [diff] [blame] | 14441 | #ifdef DEBUG |
| 14442 | // ListNatives is ONLY used by the fuzz-natives.js in debug mode |
| 14443 | // Exclude the code in release mode. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 14444 | RUNTIME_FUNCTION(MaybeObject*, Runtime_ListNatives) { |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 14445 | HandleScope scope(isolate); |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 14446 | ASSERT(args.length() == 0); |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 14447 | #define COUNT_ENTRY(Name, argc, ressize) + 1 |
| 14448 | int entry_count = 0 |
| 14449 | RUNTIME_FUNCTION_LIST(COUNT_ENTRY) |
| 14450 | INLINE_FUNCTION_LIST(COUNT_ENTRY) |
| 14451 | INLINE_RUNTIME_FUNCTION_LIST(COUNT_ENTRY); |
| 14452 | #undef COUNT_ENTRY |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 14453 | Factory* factory = isolate->factory(); |
| 14454 | Handle<FixedArray> elements = factory->NewFixedArray(entry_count); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 14455 | int index = 0; |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 14456 | bool inline_runtime_functions = false; |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 14457 | #define ADD_ENTRY(Name, argc, ressize) \ |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 14458 | { \ |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 14459 | HandleScope inner(isolate); \ |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 14460 | Handle<String> name; \ |
| 14461 | /* Inline runtime functions have an underscore in front of the name. */ \ |
| 14462 | if (inline_runtime_functions) { \ |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 14463 | name = factory->NewStringFromAscii( \ |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 14464 | Vector<const char>("_" #Name, StrLength("_" #Name))); \ |
| 14465 | } else { \ |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 14466 | name = factory->NewStringFromAscii( \ |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 14467 | Vector<const char>(#Name, StrLength(#Name))); \ |
| 14468 | } \ |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 14469 | Handle<FixedArray> pair_elements = factory->NewFixedArray(2); \ |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 14470 | pair_elements->set(0, *name); \ |
| 14471 | pair_elements->set(1, Smi::FromInt(argc)); \ |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 14472 | Handle<JSArray> pair = factory->NewJSArrayWithElements(pair_elements); \ |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 14473 | elements->set(index++, *pair); \ |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 14474 | } |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 14475 | inline_runtime_functions = false; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 14476 | RUNTIME_FUNCTION_LIST(ADD_ENTRY) |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 14477 | inline_runtime_functions = true; |
erik.corry@gmail.com | d88afa2 | 2010-09-15 12:33:05 +0000 | [diff] [blame] | 14478 | INLINE_FUNCTION_LIST(ADD_ENTRY) |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 14479 | INLINE_RUNTIME_FUNCTION_LIST(ADD_ENTRY) |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 14480 | #undef ADD_ENTRY |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 14481 | ASSERT_EQ(index, entry_count); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 14482 | Handle<JSArray> result = factory->NewJSArrayWithElements(elements); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 14483 | return *result; |
| 14484 | } |
kasper.lund | 4451067 | 2008-07-25 07:37:58 +0000 | [diff] [blame] | 14485 | #endif |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 14486 | |
| 14487 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 14488 | RUNTIME_FUNCTION(MaybeObject*, Runtime_Log) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 14489 | SealHandleScope shs(isolate); |
christian.plesner.hansen@gmail.com | 37abdec | 2009-01-06 14:43:28 +0000 | [diff] [blame] | 14490 | ASSERT(args.length() == 2); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 14491 | CONVERT_ARG_CHECKED(String, format, 0); |
| 14492 | CONVERT_ARG_CHECKED(JSArray, elms, 1); |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 14493 | DisallowHeapAllocation no_gc; |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 14494 | String::FlatContent format_content = format->GetFlatContent(); |
| 14495 | RUNTIME_ASSERT(format_content.IsAscii()); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 14496 | Vector<const uint8_t> chars = format_content.ToOneByteVector(); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 14497 | isolate->logger()->LogRuntime(Vector<const char>::cast(chars), elms); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 14498 | return isolate->heap()->undefined_value(); |
christian.plesner.hansen@gmail.com | 37abdec | 2009-01-06 14:43:28 +0000 | [diff] [blame] | 14499 | } |
| 14500 | |
| 14501 | |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 14502 | RUNTIME_FUNCTION(MaybeObject*, Runtime_IS_VAR) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 14503 | UNREACHABLE(); // implemented as macro in the parser |
| 14504 | return NULL; |
| 14505 | } |
| 14506 | |
| 14507 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 14508 | #define ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(Name) \ |
| 14509 | RUNTIME_FUNCTION(MaybeObject*, Runtime_Has##Name) { \ |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 14510 | CONVERT_ARG_CHECKED(JSObject, obj, 0); \ |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 14511 | return isolate->heap()->ToBoolean(obj->Has##Name()); \ |
| 14512 | } |
| 14513 | |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 14514 | ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(FastSmiElements) |
| 14515 | ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(FastObjectElements) |
| 14516 | ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(FastSmiOrObjectElements) |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 14517 | ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(FastDoubleElements) |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 14518 | ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(FastHoleyElements) |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 14519 | ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(DictionaryElements) |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 14520 | ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(NonStrictArgumentsElements) |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 14521 | ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(ExternalPixelElements) |
| 14522 | ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(ExternalArrayElements) |
| 14523 | ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(ExternalByteElements) |
| 14524 | ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(ExternalUnsignedByteElements) |
| 14525 | ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(ExternalShortElements) |
| 14526 | ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(ExternalUnsignedShortElements) |
| 14527 | ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(ExternalIntElements) |
| 14528 | ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(ExternalUnsignedIntElements) |
| 14529 | ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(ExternalFloatElements) |
| 14530 | ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(ExternalDoubleElements) |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 14531 | // Properties test sitting with elements tests - not fooling anyone. |
| 14532 | ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(FastProperties) |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 14533 | |
| 14534 | #undef ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION |
| 14535 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 14536 | |
| 14537 | RUNTIME_FUNCTION(MaybeObject*, Runtime_HaveSameMap) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 14538 | SealHandleScope shs(isolate); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 14539 | ASSERT(args.length() == 2); |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 14540 | CONVERT_ARG_CHECKED(JSObject, obj1, 0); |
| 14541 | CONVERT_ARG_CHECKED(JSObject, obj2, 1); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 14542 | return isolate->heap()->ToBoolean(obj1->map() == obj2->map()); |
| 14543 | } |
| 14544 | |
mvstanton@chromium.org | e4ac3ef | 2012-11-12 14:53:34 +0000 | [diff] [blame] | 14545 | |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 14546 | RUNTIME_FUNCTION(MaybeObject*, Runtime_IsAccessCheckNeeded) { |
| 14547 | SealHandleScope shs(isolate); |
| 14548 | ASSERT(args.length() == 1); |
| 14549 | CONVERT_ARG_CHECKED(HeapObject, obj, 0); |
| 14550 | return isolate->heap()->ToBoolean(obj->IsAccessCheckNeeded()); |
| 14551 | } |
| 14552 | |
| 14553 | |
mvstanton@chromium.org | e4ac3ef | 2012-11-12 14:53:34 +0000 | [diff] [blame] | 14554 | RUNTIME_FUNCTION(MaybeObject*, Runtime_IsObserved) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 14555 | SealHandleScope shs(isolate); |
mvstanton@chromium.org | e4ac3ef | 2012-11-12 14:53:34 +0000 | [diff] [blame] | 14556 | ASSERT(args.length() == 1); |
rossberg@chromium.org | b99c754 | 2013-05-31 11:40:45 +0000 | [diff] [blame] | 14557 | |
| 14558 | if (!args[0]->IsJSReceiver()) return isolate->heap()->false_value(); |
| 14559 | JSReceiver* obj = JSReceiver::cast(args[0]); |
mstarzinger@chromium.org | 32280cf | 2012-12-06 17:32:37 +0000 | [diff] [blame] | 14560 | if (obj->IsJSGlobalProxy()) { |
| 14561 | Object* proto = obj->GetPrototype(); |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 14562 | if (proto->IsNull()) return isolate->heap()->false_value(); |
mstarzinger@chromium.org | 32280cf | 2012-12-06 17:32:37 +0000 | [diff] [blame] | 14563 | ASSERT(proto->IsJSGlobalObject()); |
| 14564 | obj = JSReceiver::cast(proto); |
| 14565 | } |
mvstanton@chromium.org | e4ac3ef | 2012-11-12 14:53:34 +0000 | [diff] [blame] | 14566 | return isolate->heap()->ToBoolean(obj->map()->is_observed()); |
| 14567 | } |
| 14568 | |
| 14569 | |
| 14570 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SetIsObserved) { |
mstarzinger@chromium.org | b4968be | 2013-10-16 09:00:56 +0000 | [diff] [blame] | 14571 | HandleScope scope(isolate); |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 14572 | ASSERT(args.length() == 1); |
mstarzinger@chromium.org | b4968be | 2013-10-16 09:00:56 +0000 | [diff] [blame] | 14573 | CONVERT_ARG_HANDLE_CHECKED(JSReceiver, obj, 0); |
mstarzinger@chromium.org | 32280cf | 2012-12-06 17:32:37 +0000 | [diff] [blame] | 14574 | if (obj->IsJSGlobalProxy()) { |
| 14575 | Object* proto = obj->GetPrototype(); |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 14576 | if (proto->IsNull()) return isolate->heap()->undefined_value(); |
mstarzinger@chromium.org | 32280cf | 2012-12-06 17:32:37 +0000 | [diff] [blame] | 14577 | ASSERT(proto->IsJSGlobalObject()); |
mstarzinger@chromium.org | b4968be | 2013-10-16 09:00:56 +0000 | [diff] [blame] | 14578 | obj = handle(JSReceiver::cast(proto)); |
mstarzinger@chromium.org | 32280cf | 2012-12-06 17:32:37 +0000 | [diff] [blame] | 14579 | } |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 14580 | if (obj->IsJSProxy()) |
| 14581 | return isolate->heap()->undefined_value(); |
| 14582 | |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 14583 | ASSERT(!(obj->map()->is_observed() && obj->IsJSObject() && |
mstarzinger@chromium.org | b4968be | 2013-10-16 09:00:56 +0000 | [diff] [blame] | 14584 | Handle<JSObject>::cast(obj)->HasFastElements())); |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 14585 | ASSERT(obj->IsJSObject()); |
mstarzinger@chromium.org | b4968be | 2013-10-16 09:00:56 +0000 | [diff] [blame] | 14586 | JSObject::SetObserved(Handle<JSObject>::cast(obj)); |
| 14587 | return isolate->heap()->undefined_value(); |
mvstanton@chromium.org | e4ac3ef | 2012-11-12 14:53:34 +0000 | [diff] [blame] | 14588 | } |
| 14589 | |
| 14590 | |
machenbach@chromium.org | 9f18d91 | 2013-11-28 13:42:41 +0000 | [diff] [blame] | 14591 | RUNTIME_FUNCTION(MaybeObject*, Runtime_SetMicrotaskPending) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 14592 | SealHandleScope shs(isolate); |
machenbach@chromium.org | 9f18d91 | 2013-11-28 13:42:41 +0000 | [diff] [blame] | 14593 | ASSERT(args.length() == 1); |
| 14594 | CONVERT_BOOLEAN_ARG_CHECKED(new_state, 0); |
| 14595 | bool old_state = isolate->microtask_pending(); |
| 14596 | isolate->set_microtask_pending(new_state); |
| 14597 | return isolate->heap()->ToBoolean(old_state); |
mvstanton@chromium.org | e4ac3ef | 2012-11-12 14:53:34 +0000 | [diff] [blame] | 14598 | } |
| 14599 | |
| 14600 | |
| 14601 | RUNTIME_FUNCTION(MaybeObject*, Runtime_GetObservationState) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 14602 | SealHandleScope shs(isolate); |
mvstanton@chromium.org | e4ac3ef | 2012-11-12 14:53:34 +0000 | [diff] [blame] | 14603 | ASSERT(args.length() == 0); |
| 14604 | return isolate->heap()->observation_state(); |
| 14605 | } |
| 14606 | |
| 14607 | |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 14608 | RUNTIME_FUNCTION(MaybeObject*, Runtime_ObservationWeakMapCreate) { |
mvstanton@chromium.org | e4ac3ef | 2012-11-12 14:53:34 +0000 | [diff] [blame] | 14609 | HandleScope scope(isolate); |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 14610 | ASSERT(args.length() == 0); |
| 14611 | // TODO(adamk): Currently this runtime function is only called three times per |
| 14612 | // isolate. If it's called more often, the map should be moved into the |
| 14613 | // strong root list. |
| 14614 | Handle<Map> map = |
| 14615 | isolate->factory()->NewMap(JS_WEAK_MAP_TYPE, JSWeakMap::kSize); |
| 14616 | Handle<JSWeakMap> weakmap = |
| 14617 | Handle<JSWeakMap>::cast(isolate->factory()->NewJSObjectFromMap(map)); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 14618 | return WeakCollectionInitialize(isolate, weakmap); |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 14619 | } |
| 14620 | |
| 14621 | |
| 14622 | RUNTIME_FUNCTION(MaybeObject*, Runtime_UnwrapGlobalProxy) { |
rossberg@chromium.org | 79e7902 | 2013-06-03 15:43:46 +0000 | [diff] [blame] | 14623 | SealHandleScope shs(isolate); |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 14624 | ASSERT(args.length() == 1); |
| 14625 | Object* object = args[0]; |
| 14626 | if (object->IsJSGlobalProxy()) { |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 14627 | object = object->GetPrototype(isolate); |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 14628 | if (object->IsNull()) return isolate->heap()->undefined_value(); |
mstarzinger@chromium.org | 32280cf | 2012-12-06 17:32:37 +0000 | [diff] [blame] | 14629 | } |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 14630 | return object; |
mvstanton@chromium.org | e4ac3ef | 2012-11-12 14:53:34 +0000 | [diff] [blame] | 14631 | } |
| 14632 | |
| 14633 | |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 14634 | RUNTIME_FUNCTION(MaybeObject*, Runtime_IsAccessAllowedForObserver) { |
| 14635 | HandleScope scope(isolate); |
| 14636 | ASSERT(args.length() == 3); |
| 14637 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, observer, 0); |
| 14638 | CONVERT_ARG_HANDLE_CHECKED(JSObject, object, 1); |
| 14639 | ASSERT(object->IsAccessCheckNeeded()); |
| 14640 | Handle<Object> key = args.at<Object>(2); |
| 14641 | SaveContext save(isolate); |
| 14642 | isolate->set_context(observer->context()); |
| 14643 | if (!isolate->MayNamedAccess(*object, isolate->heap()->undefined_value(), |
| 14644 | v8::ACCESS_KEYS)) { |
| 14645 | return isolate->heap()->false_value(); |
| 14646 | } |
| 14647 | bool access_allowed = false; |
| 14648 | uint32_t index = 0; |
| 14649 | if (key->ToArrayIndex(&index) || |
| 14650 | (key->IsString() && String::cast(*key)->AsArrayIndex(&index))) { |
| 14651 | access_allowed = |
| 14652 | isolate->MayIndexedAccess(*object, index, v8::ACCESS_GET) && |
| 14653 | isolate->MayIndexedAccess(*object, index, v8::ACCESS_HAS); |
| 14654 | } else { |
| 14655 | access_allowed = isolate->MayNamedAccess(*object, *key, v8::ACCESS_GET) && |
| 14656 | isolate->MayNamedAccess(*object, *key, v8::ACCESS_HAS); |
| 14657 | } |
| 14658 | return isolate->heap()->ToBoolean(access_allowed); |
| 14659 | } |
| 14660 | |
| 14661 | |
ulan@chromium.org | dfe5307 | 2013-06-06 14:14:51 +0000 | [diff] [blame] | 14662 | static MaybeObject* ArrayConstructorCommon(Isolate* isolate, |
| 14663 | Handle<JSFunction> constructor, |
machenbach@chromium.org | b5be0a9 | 2013-11-15 10:32:41 +0000 | [diff] [blame] | 14664 | Handle<AllocationSite> site, |
ulan@chromium.org | dfe5307 | 2013-06-06 14:14:51 +0000 | [diff] [blame] | 14665 | Arguments* caller_args) { |
| 14666 | bool holey = false; |
| 14667 | bool can_use_type_feedback = true; |
| 14668 | if (caller_args->length() == 1) { |
| 14669 | Object* argument_one = (*caller_args)[0]; |
| 14670 | if (argument_one->IsSmi()) { |
| 14671 | int value = Smi::cast(argument_one)->value(); |
| 14672 | if (value < 0 || value >= JSObject::kInitialMaxFastElementArray) { |
| 14673 | // the array is a dictionary in this case. |
| 14674 | can_use_type_feedback = false; |
| 14675 | } else if (value != 0) { |
| 14676 | holey = true; |
| 14677 | } |
| 14678 | } else { |
| 14679 | // Non-smi length argument produces a dictionary |
| 14680 | can_use_type_feedback = false; |
| 14681 | } |
| 14682 | } |
| 14683 | |
| 14684 | JSArray* array; |
| 14685 | MaybeObject* maybe_array; |
machenbach@chromium.org | b5be0a9 | 2013-11-15 10:32:41 +0000 | [diff] [blame] | 14686 | if (!site.is_null() && can_use_type_feedback) { |
danno@chromium.org | bee5199 | 2013-07-10 14:57:15 +0000 | [diff] [blame] | 14687 | ElementsKind to_kind = site->GetElementsKind(); |
ulan@chromium.org | dfe5307 | 2013-06-06 14:14:51 +0000 | [diff] [blame] | 14688 | if (holey && !IsFastHoleyElementsKind(to_kind)) { |
| 14689 | to_kind = GetHoleyElementsKind(to_kind); |
| 14690 | // Update the allocation site info to reflect the advice alteration. |
danno@chromium.org | bee5199 | 2013-07-10 14:57:15 +0000 | [diff] [blame] | 14691 | site->SetElementsKind(to_kind); |
ulan@chromium.org | dfe5307 | 2013-06-06 14:14:51 +0000 | [diff] [blame] | 14692 | } |
| 14693 | |
| 14694 | maybe_array = isolate->heap()->AllocateJSObjectWithAllocationSite( |
danno@chromium.org | bee5199 | 2013-07-10 14:57:15 +0000 | [diff] [blame] | 14695 | *constructor, site); |
ulan@chromium.org | dfe5307 | 2013-06-06 14:14:51 +0000 | [diff] [blame] | 14696 | if (!maybe_array->To(&array)) return maybe_array; |
| 14697 | } else { |
| 14698 | maybe_array = isolate->heap()->AllocateJSObject(*constructor); |
| 14699 | if (!maybe_array->To(&array)) return maybe_array; |
| 14700 | // We might need to transition to holey |
| 14701 | ElementsKind kind = constructor->initial_map()->elements_kind(); |
| 14702 | if (holey && !IsFastHoleyElementsKind(kind)) { |
| 14703 | kind = GetHoleyElementsKind(kind); |
| 14704 | maybe_array = array->TransitionElementsKind(kind); |
| 14705 | if (maybe_array->IsFailure()) return maybe_array; |
| 14706 | } |
| 14707 | } |
| 14708 | |
| 14709 | maybe_array = isolate->heap()->AllocateJSArrayStorage(array, 0, 0, |
| 14710 | DONT_INITIALIZE_ARRAY_ELEMENTS); |
| 14711 | if (maybe_array->IsFailure()) return maybe_array; |
machenbach@chromium.org | b5be0a9 | 2013-11-15 10:32:41 +0000 | [diff] [blame] | 14712 | ElementsKind old_kind = array->GetElementsKind(); |
ulan@chromium.org | dfe5307 | 2013-06-06 14:14:51 +0000 | [diff] [blame] | 14713 | maybe_array = ArrayConstructInitializeElements(array, caller_args); |
| 14714 | if (maybe_array->IsFailure()) return maybe_array; |
machenbach@chromium.org | b5be0a9 | 2013-11-15 10:32:41 +0000 | [diff] [blame] | 14715 | if (!site.is_null() && |
| 14716 | (old_kind != array->GetElementsKind() || |
| 14717 | !can_use_type_feedback)) { |
| 14718 | // The arguments passed in caused a transition. This kind of complexity |
| 14719 | // can't be dealt with in the inlined hydrogen array constructor case. |
| 14720 | // We must mark the allocationsite as un-inlinable. |
| 14721 | site->SetDoNotInlineCall(); |
| 14722 | } |
ulan@chromium.org | dfe5307 | 2013-06-06 14:14:51 +0000 | [diff] [blame] | 14723 | return array; |
| 14724 | } |
| 14725 | |
| 14726 | |
| 14727 | RUNTIME_FUNCTION(MaybeObject*, Runtime_ArrayConstructor) { |
| 14728 | HandleScope scope(isolate); |
| 14729 | // If we get 2 arguments then they are the stub parameters (constructor, type |
machenbach@chromium.org | 0cc0950 | 2013-11-13 12:20:55 +0000 | [diff] [blame] | 14730 | // info). If we get 4, then the first one is a pointer to the arguments |
| 14731 | // passed by the caller, and the last one is the length of the arguments |
| 14732 | // passed to the caller (redundant, but useful to check on the deoptimizer |
| 14733 | // with an assert). |
ulan@chromium.org | dfe5307 | 2013-06-06 14:14:51 +0000 | [diff] [blame] | 14734 | Arguments empty_args(0, NULL); |
| 14735 | bool no_caller_args = args.length() == 2; |
machenbach@chromium.org | 0cc0950 | 2013-11-13 12:20:55 +0000 | [diff] [blame] | 14736 | ASSERT(no_caller_args || args.length() == 4); |
ulan@chromium.org | dfe5307 | 2013-06-06 14:14:51 +0000 | [diff] [blame] | 14737 | int parameters_start = no_caller_args ? 0 : 1; |
| 14738 | Arguments* caller_args = no_caller_args |
| 14739 | ? &empty_args |
| 14740 | : reinterpret_cast<Arguments*>(args[0]); |
| 14741 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, constructor, parameters_start); |
| 14742 | CONVERT_ARG_HANDLE_CHECKED(Object, type_info, parameters_start + 1); |
machenbach@chromium.org | 0cc0950 | 2013-11-13 12:20:55 +0000 | [diff] [blame] | 14743 | #ifdef DEBUG |
| 14744 | if (!no_caller_args) { |
| 14745 | CONVERT_SMI_ARG_CHECKED(arg_count, parameters_start + 2); |
| 14746 | ASSERT(arg_count == caller_args->length()); |
| 14747 | } |
| 14748 | #endif |
machenbach@chromium.org | b5be0a9 | 2013-11-15 10:32:41 +0000 | [diff] [blame] | 14749 | |
| 14750 | Handle<AllocationSite> site; |
| 14751 | if (!type_info.is_null() && |
| 14752 | *type_info != isolate->heap()->undefined_value() && |
| 14753 | Cell::cast(*type_info)->value()->IsAllocationSite()) { |
| 14754 | site = Handle<AllocationSite>( |
| 14755 | AllocationSite::cast(Cell::cast(*type_info)->value()), isolate); |
| 14756 | ASSERT(!site->SitePointsToLiteral()); |
| 14757 | } |
| 14758 | |
ulan@chromium.org | dfe5307 | 2013-06-06 14:14:51 +0000 | [diff] [blame] | 14759 | return ArrayConstructorCommon(isolate, |
| 14760 | constructor, |
machenbach@chromium.org | b5be0a9 | 2013-11-15 10:32:41 +0000 | [diff] [blame] | 14761 | site, |
ulan@chromium.org | dfe5307 | 2013-06-06 14:14:51 +0000 | [diff] [blame] | 14762 | caller_args); |
| 14763 | } |
| 14764 | |
| 14765 | |
| 14766 | RUNTIME_FUNCTION(MaybeObject*, Runtime_InternalArrayConstructor) { |
| 14767 | HandleScope scope(isolate); |
| 14768 | Arguments empty_args(0, NULL); |
| 14769 | bool no_caller_args = args.length() == 1; |
machenbach@chromium.org | 0cc0950 | 2013-11-13 12:20:55 +0000 | [diff] [blame] | 14770 | ASSERT(no_caller_args || args.length() == 3); |
ulan@chromium.org | dfe5307 | 2013-06-06 14:14:51 +0000 | [diff] [blame] | 14771 | int parameters_start = no_caller_args ? 0 : 1; |
| 14772 | Arguments* caller_args = no_caller_args |
| 14773 | ? &empty_args |
| 14774 | : reinterpret_cast<Arguments*>(args[0]); |
| 14775 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, constructor, parameters_start); |
machenbach@chromium.org | 0cc0950 | 2013-11-13 12:20:55 +0000 | [diff] [blame] | 14776 | #ifdef DEBUG |
| 14777 | if (!no_caller_args) { |
| 14778 | CONVERT_SMI_ARG_CHECKED(arg_count, parameters_start + 1); |
| 14779 | ASSERT(arg_count == caller_args->length()); |
| 14780 | } |
| 14781 | #endif |
ulan@chromium.org | dfe5307 | 2013-06-06 14:14:51 +0000 | [diff] [blame] | 14782 | return ArrayConstructorCommon(isolate, |
| 14783 | constructor, |
machenbach@chromium.org | b5be0a9 | 2013-11-15 10:32:41 +0000 | [diff] [blame] | 14784 | Handle<AllocationSite>::null(), |
ulan@chromium.org | dfe5307 | 2013-06-06 14:14:51 +0000 | [diff] [blame] | 14785 | caller_args); |
| 14786 | } |
| 14787 | |
| 14788 | |
machenbach@chromium.org | ea46888 | 2013-11-18 08:53:19 +0000 | [diff] [blame] | 14789 | RUNTIME_FUNCTION(MaybeObject*, Runtime_MaxSmi) { |
| 14790 | return Smi::FromInt(Smi::kMaxValue); |
| 14791 | } |
| 14792 | |
| 14793 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 14794 | // ---------------------------------------------------------------------------- |
| 14795 | // Implementation of Runtime |
| 14796 | |
erik.corry@gmail.com | d88afa2 | 2010-09-15 12:33:05 +0000 | [diff] [blame] | 14797 | #define F(name, number_of_args, result_size) \ |
| 14798 | { Runtime::k##name, Runtime::RUNTIME, #name, \ |
| 14799 | FUNCTION_ADDR(Runtime_##name), number_of_args, result_size }, |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 14800 | |
erik.corry@gmail.com | d88afa2 | 2010-09-15 12:33:05 +0000 | [diff] [blame] | 14801 | |
| 14802 | #define I(name, number_of_args, result_size) \ |
| 14803 | { Runtime::kInline##name, Runtime::INLINE, \ |
| 14804 | "_" #name, NULL, number_of_args, result_size }, |
| 14805 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 14806 | static const Runtime::Function kIntrinsicFunctions[] = { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 14807 | RUNTIME_FUNCTION_LIST(F) |
erik.corry@gmail.com | d88afa2 | 2010-09-15 12:33:05 +0000 | [diff] [blame] | 14808 | INLINE_FUNCTION_LIST(I) |
| 14809 | INLINE_RUNTIME_FUNCTION_LIST(I) |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 14810 | }; |
| 14811 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 14812 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 14813 | MaybeObject* Runtime::InitializeIntrinsicFunctionNames(Heap* heap, |
| 14814 | Object* dictionary) { |
erik.corry@gmail.com | d88afa2 | 2010-09-15 12:33:05 +0000 | [diff] [blame] | 14815 | ASSERT(dictionary != NULL); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 14816 | ASSERT(NameDictionary::cast(dictionary)->NumberOfElements() == 0); |
erik.corry@gmail.com | d88afa2 | 2010-09-15 12:33:05 +0000 | [diff] [blame] | 14817 | for (int i = 0; i < kNumFunctions; ++i) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 14818 | Object* name_string; |
| 14819 | { MaybeObject* maybe_name_string = |
| 14820 | heap->InternalizeUtf8String(kIntrinsicFunctions[i].name); |
| 14821 | if (!maybe_name_string->ToObject(&name_string)) return maybe_name_string; |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 14822 | } |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 14823 | NameDictionary* name_dictionary = NameDictionary::cast(dictionary); |
| 14824 | { MaybeObject* maybe_dictionary = name_dictionary->Add( |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 14825 | String::cast(name_string), |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 14826 | Smi::FromInt(i), |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 14827 | PropertyDetails(NONE, NORMAL, Representation::None())); |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 14828 | if (!maybe_dictionary->ToObject(&dictionary)) { |
| 14829 | // Non-recoverable failure. Calling code must restart heap |
| 14830 | // initialization. |
| 14831 | return maybe_dictionary; |
| 14832 | } |
| 14833 | } |
erik.corry@gmail.com | d88afa2 | 2010-09-15 12:33:05 +0000 | [diff] [blame] | 14834 | } |
| 14835 | return dictionary; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 14836 | } |
| 14837 | |
| 14838 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 14839 | const Runtime::Function* Runtime::FunctionForName(Handle<String> name) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 14840 | Heap* heap = name->GetHeap(); |
| 14841 | int entry = heap->intrinsic_function_names()->FindEntry(*name); |
erik.corry@gmail.com | d88afa2 | 2010-09-15 12:33:05 +0000 | [diff] [blame] | 14842 | if (entry != kNotFound) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 14843 | Object* smi_index = heap->intrinsic_function_names()->ValueAt(entry); |
erik.corry@gmail.com | d88afa2 | 2010-09-15 12:33:05 +0000 | [diff] [blame] | 14844 | int function_index = Smi::cast(smi_index)->value(); |
| 14845 | return &(kIntrinsicFunctions[function_index]); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 14846 | } |
| 14847 | return NULL; |
| 14848 | } |
| 14849 | |
| 14850 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 14851 | const Runtime::Function* Runtime::FunctionForId(Runtime::FunctionId id) { |
erik.corry@gmail.com | d88afa2 | 2010-09-15 12:33:05 +0000 | [diff] [blame] | 14852 | return &(kIntrinsicFunctions[static_cast<int>(id)]); |
| 14853 | } |
| 14854 | |
| 14855 | |
machenbach@chromium.org | 528ce02 | 2013-09-23 14:09:36 +0000 | [diff] [blame] | 14856 | void Runtime::PerformGC(Object* result, Isolate* isolate) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 14857 | Failure* failure = Failure::cast(result); |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 14858 | if (failure->IsRetryAfterGC()) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 14859 | if (isolate->heap()->new_space()->AddFreshPage()) { |
| 14860 | return; |
| 14861 | } |
rossberg@chromium.org | 2c067b1 | 2012-03-19 11:01:52 +0000 | [diff] [blame] | 14862 | |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 14863 | // Try to do a garbage collection; ignore it if it fails. The C |
| 14864 | // entry stub will throw an out-of-memory exception in that case. |
rossberg@chromium.org | 994edf6 | 2012-02-06 10:12:55 +0000 | [diff] [blame] | 14865 | isolate->heap()->CollectGarbage(failure->allocation_space(), |
| 14866 | "Runtime::PerformGC"); |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 14867 | } else { |
| 14868 | // Handle last resort GC and make sure to allow future allocations |
| 14869 | // to grow the heap without causing GCs (if possible). |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 14870 | isolate->counters()->gc_last_resort_from_js()->Increment(); |
rossberg@chromium.org | 994edf6 | 2012-02-06 10:12:55 +0000 | [diff] [blame] | 14871 | isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags, |
| 14872 | "Runtime::PerformGC"); |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 14873 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 14874 | } |
| 14875 | |
| 14876 | |
| 14877 | } } // namespace v8::internal |