ager@chromium.org | a9aa5fa | 2011-04-13 08:46:07 +0000 | [diff] [blame] | 1 | // Copyright 2011 the V8 project authors. All rights reserved. |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +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> |
lrn@chromium.org | fa943b7 | 2010-11-03 08:14:36 +0000 | [diff] [blame] | 29 | #include <stdio.h> |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 30 | #include <string.h> |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 31 | |
| 32 | #include "v8.h" |
| 33 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 34 | #include "isolate.h" |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 35 | #include "token.h" |
| 36 | #include "scanner.h" |
ager@chromium.org | 5b2fbee | 2010-09-08 06:38:15 +0000 | [diff] [blame] | 37 | #include "parser.h" |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 38 | #include "utils.h" |
kmillikin@chromium.org | 3cdd9e1 | 2010-09-06 11:39:48 +0000 | [diff] [blame] | 39 | #include "execution.h" |
lrn@chromium.org | fa943b7 | 2010-11-03 08:14:36 +0000 | [diff] [blame] | 40 | #include "preparser.h" |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 41 | #include "cctest.h" |
| 42 | |
| 43 | namespace i = ::v8::internal; |
| 44 | |
| 45 | TEST(KeywordMatcher) { |
| 46 | struct KeywordToken { |
| 47 | const char* keyword; |
| 48 | i::Token::Value token; |
| 49 | }; |
| 50 | |
| 51 | static const KeywordToken keywords[] = { |
| 52 | #define KEYWORD(t, s, d) { s, i::Token::t }, |
| 53 | #define IGNORE(t, s, d) /* */ |
| 54 | TOKEN_LIST(IGNORE, KEYWORD, IGNORE) |
| 55 | #undef KEYWORD |
| 56 | { NULL, i::Token::IDENTIFIER } |
| 57 | }; |
| 58 | |
| 59 | static const char* future_keywords[] = { |
| 60 | #define FUTURE(t, s, d) s, |
| 61 | TOKEN_LIST(IGNORE, IGNORE, FUTURE) |
| 62 | #undef FUTURE |
| 63 | #undef IGNORE |
| 64 | NULL |
| 65 | }; |
| 66 | |
| 67 | KeywordToken key_token; |
| 68 | for (int i = 0; (key_token = keywords[i]).keyword != NULL; i++) { |
| 69 | i::KeywordMatcher matcher; |
| 70 | const char* keyword = key_token.keyword; |
| 71 | int length = i::StrLength(keyword); |
| 72 | for (int j = 0; j < length; j++) { |
| 73 | if (key_token.token == i::Token::INSTANCEOF && j == 2) { |
| 74 | // "in" is a prefix of "instanceof". It's the only keyword |
| 75 | // that is a prefix of another. |
| 76 | CHECK_EQ(i::Token::IN, matcher.token()); |
| 77 | } else { |
| 78 | CHECK_EQ(i::Token::IDENTIFIER, matcher.token()); |
| 79 | } |
| 80 | matcher.AddChar(keyword[j]); |
| 81 | } |
| 82 | CHECK_EQ(key_token.token, matcher.token()); |
| 83 | // Adding more characters will make keyword matching fail. |
| 84 | matcher.AddChar('z'); |
| 85 | CHECK_EQ(i::Token::IDENTIFIER, matcher.token()); |
| 86 | // Adding a keyword later will not make it match again. |
| 87 | matcher.AddChar('i'); |
| 88 | matcher.AddChar('f'); |
| 89 | CHECK_EQ(i::Token::IDENTIFIER, matcher.token()); |
| 90 | } |
| 91 | |
| 92 | // Future keywords are not recognized. |
| 93 | const char* future_keyword; |
| 94 | for (int i = 0; (future_keyword = future_keywords[i]) != NULL; i++) { |
| 95 | i::KeywordMatcher matcher; |
| 96 | int length = i::StrLength(future_keyword); |
| 97 | for (int j = 0; j < length; j++) { |
| 98 | matcher.AddChar(future_keyword[j]); |
| 99 | } |
| 100 | CHECK_EQ(i::Token::IDENTIFIER, matcher.token()); |
| 101 | } |
| 102 | |
| 103 | // Zero isn't ignored at first. |
| 104 | i::KeywordMatcher bad_start; |
| 105 | bad_start.AddChar(0); |
| 106 | CHECK_EQ(i::Token::IDENTIFIER, bad_start.token()); |
| 107 | bad_start.AddChar('i'); |
| 108 | bad_start.AddChar('f'); |
| 109 | CHECK_EQ(i::Token::IDENTIFIER, bad_start.token()); |
| 110 | |
| 111 | // Zero isn't ignored at end. |
| 112 | i::KeywordMatcher bad_end; |
| 113 | bad_end.AddChar('i'); |
| 114 | bad_end.AddChar('f'); |
| 115 | CHECK_EQ(i::Token::IF, bad_end.token()); |
| 116 | bad_end.AddChar(0); |
| 117 | CHECK_EQ(i::Token::IDENTIFIER, bad_end.token()); |
| 118 | |
| 119 | // Case isn't ignored. |
| 120 | i::KeywordMatcher bad_case; |
| 121 | bad_case.AddChar('i'); |
| 122 | bad_case.AddChar('F'); |
| 123 | CHECK_EQ(i::Token::IDENTIFIER, bad_case.token()); |
| 124 | |
| 125 | // If we mark it as failure, continuing won't help. |
| 126 | i::KeywordMatcher full_stop; |
| 127 | full_stop.AddChar('i'); |
| 128 | CHECK_EQ(i::Token::IDENTIFIER, full_stop.token()); |
| 129 | full_stop.Fail(); |
| 130 | CHECK_EQ(i::Token::IDENTIFIER, full_stop.token()); |
| 131 | full_stop.AddChar('f'); |
| 132 | CHECK_EQ(i::Token::IDENTIFIER, full_stop.token()); |
| 133 | } |
| 134 | |
kmillikin@chromium.org | 3cdd9e1 | 2010-09-06 11:39:48 +0000 | [diff] [blame] | 135 | |
| 136 | TEST(ScanHTMLEndComments) { |
| 137 | // Regression test. See: |
| 138 | // http://code.google.com/p/chromium/issues/detail?id=53548 |
| 139 | // Tests that --> is correctly interpreted as comment-to-end-of-line if there |
whesse@chromium.org | df8c03c | 2011-06-21 14:36:03 +0000 | [diff] [blame] | 140 | // is only whitespace before it on the line (with comments considered as |
| 141 | // whitespace, even a multiline-comment containing a newline). |
| 142 | // This was not the case if it occurred before the first real token |
kmillikin@chromium.org | 3cdd9e1 | 2010-09-06 11:39:48 +0000 | [diff] [blame] | 143 | // in the input. |
| 144 | const char* tests[] = { |
| 145 | // Before first real token. |
| 146 | "--> is eol-comment\nvar y = 37;\n", |
| 147 | "\n --> is eol-comment\nvar y = 37;\n", |
| 148 | "/* precomment */ --> is eol-comment\nvar y = 37;\n", |
| 149 | "\n/* precomment */ --> is eol-comment\nvar y = 37;\n", |
| 150 | // After first real token. |
| 151 | "var x = 42;\n--> is eol-comment\nvar y = 37;\n", |
| 152 | "var x = 42;\n/* precomment */ --> is eol-comment\nvar y = 37;\n", |
| 153 | NULL |
| 154 | }; |
| 155 | |
whesse@chromium.org | df8c03c | 2011-06-21 14:36:03 +0000 | [diff] [blame] | 156 | const char* fail_tests[] = { |
| 157 | "x --> is eol-comment\nvar y = 37;\n", |
| 158 | "\"\\n\" --> is eol-comment\nvar y = 37;\n", |
| 159 | "x/* precomment */ --> is eol-comment\nvar y = 37;\n", |
| 160 | "x/* precomment\n */ --> is eol-comment\nvar y = 37;\n", |
| 161 | "var x = 42; --> is eol-comment\nvar y = 37;\n", |
| 162 | "var x = 42; /* precomment\n */ --> is eol-comment\nvar y = 37;\n", |
| 163 | NULL |
| 164 | }; |
| 165 | |
ager@chromium.org | 5b2fbee | 2010-09-08 06:38:15 +0000 | [diff] [blame] | 166 | // Parser/Scanner needs a stack limit. |
kmillikin@chromium.org | 3cdd9e1 | 2010-09-06 11:39:48 +0000 | [diff] [blame] | 167 | int marker; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 168 | i::Isolate::Current()->stack_guard()->SetStackLimit( |
kmillikin@chromium.org | 3cdd9e1 | 2010-09-06 11:39:48 +0000 | [diff] [blame] | 169 | reinterpret_cast<uintptr_t>(&marker) - 128 * 1024); |
| 170 | |
| 171 | for (int i = 0; tests[i]; i++) { |
| 172 | v8::ScriptData* data = |
whesse@chromium.org | 4a1fe7d | 2010-09-27 12:32:04 +0000 | [diff] [blame] | 173 | v8::ScriptData::PreCompile(tests[i], i::StrLength(tests[i])); |
kmillikin@chromium.org | 3cdd9e1 | 2010-09-06 11:39:48 +0000 | [diff] [blame] | 174 | CHECK(data != NULL && !data->HasError()); |
| 175 | delete data; |
| 176 | } |
whesse@chromium.org | df8c03c | 2011-06-21 14:36:03 +0000 | [diff] [blame] | 177 | |
| 178 | for (int i = 0; fail_tests[i]; i++) { |
| 179 | v8::ScriptData* data = |
| 180 | v8::ScriptData::PreCompile(fail_tests[i], i::StrLength(fail_tests[i])); |
| 181 | CHECK(data == NULL || data->HasError()); |
| 182 | delete data; |
| 183 | } |
kmillikin@chromium.org | 3cdd9e1 | 2010-09-06 11:39:48 +0000 | [diff] [blame] | 184 | } |
ager@chromium.org | 5b2fbee | 2010-09-08 06:38:15 +0000 | [diff] [blame] | 185 | |
| 186 | |
| 187 | class ScriptResource : public v8::String::ExternalAsciiStringResource { |
| 188 | public: |
| 189 | ScriptResource(const char* data, size_t length) |
| 190 | : data_(data), length_(length) { } |
| 191 | |
| 192 | const char* data() const { return data_; } |
| 193 | size_t length() const { return length_; } |
| 194 | |
| 195 | private: |
| 196 | const char* data_; |
| 197 | size_t length_; |
| 198 | }; |
| 199 | |
| 200 | |
| 201 | TEST(Preparsing) { |
| 202 | v8::HandleScope handles; |
| 203 | v8::Persistent<v8::Context> context = v8::Context::New(); |
| 204 | v8::Context::Scope context_scope(context); |
| 205 | int marker; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 206 | i::Isolate::Current()->stack_guard()->SetStackLimit( |
ager@chromium.org | 5b2fbee | 2010-09-08 06:38:15 +0000 | [diff] [blame] | 207 | reinterpret_cast<uintptr_t>(&marker) - 128 * 1024); |
| 208 | |
| 209 | // Source containing functions that might be lazily compiled and all types |
| 210 | // of symbols (string, propertyName, regexp). |
| 211 | const char* source = |
| 212 | "var x = 42;" |
| 213 | "function foo(a) { return function nolazy(b) { return a + b; } }" |
| 214 | "function bar(a) { if (a) return function lazy(b) { return b; } }" |
| 215 | "var z = {'string': 'string literal', bareword: 'propertyName', " |
| 216 | " 42: 'number literal', for: 'keyword as propertyName', " |
| 217 | " f\\u006fr: 'keyword propertyname with escape'};" |
| 218 | "var v = /RegExp Literal/;" |
| 219 | "var w = /RegExp Literal\\u0020With Escape/gin;" |
| 220 | "var y = { get getter() { return 42; }, " |
| 221 | " set setter(v) { this.value = v; }};"; |
whesse@chromium.org | 4a1fe7d | 2010-09-27 12:32:04 +0000 | [diff] [blame] | 222 | int source_length = i::StrLength(source); |
ager@chromium.org | 5b2fbee | 2010-09-08 06:38:15 +0000 | [diff] [blame] | 223 | const char* error_source = "var x = y z;"; |
whesse@chromium.org | 4a1fe7d | 2010-09-27 12:32:04 +0000 | [diff] [blame] | 224 | int error_source_length = i::StrLength(error_source); |
ager@chromium.org | 5b2fbee | 2010-09-08 06:38:15 +0000 | [diff] [blame] | 225 | |
| 226 | v8::ScriptData* preparse = |
| 227 | v8::ScriptData::PreCompile(source, source_length); |
| 228 | CHECK(!preparse->HasError()); |
| 229 | bool lazy_flag = i::FLAG_lazy; |
| 230 | { |
| 231 | i::FLAG_lazy = true; |
| 232 | ScriptResource* resource = new ScriptResource(source, source_length); |
| 233 | v8::Local<v8::String> script_source = v8::String::NewExternal(resource); |
| 234 | v8::Script::Compile(script_source, NULL, preparse); |
| 235 | } |
| 236 | |
| 237 | { |
| 238 | i::FLAG_lazy = false; |
| 239 | |
| 240 | ScriptResource* resource = new ScriptResource(source, source_length); |
| 241 | v8::Local<v8::String> script_source = v8::String::NewExternal(resource); |
| 242 | v8::Script::New(script_source, NULL, preparse, v8::Local<v8::String>()); |
| 243 | } |
| 244 | delete preparse; |
| 245 | i::FLAG_lazy = lazy_flag; |
| 246 | |
| 247 | // Syntax error. |
| 248 | v8::ScriptData* error_preparse = |
| 249 | v8::ScriptData::PreCompile(error_source, error_source_length); |
| 250 | CHECK(error_preparse->HasError()); |
| 251 | i::ScriptDataImpl *pre_impl = |
| 252 | reinterpret_cast<i::ScriptDataImpl*>(error_preparse); |
| 253 | i::Scanner::Location error_location = |
| 254 | pre_impl->MessageLocation(); |
| 255 | // Error is at "z" in source, location 10..11. |
| 256 | CHECK_EQ(10, error_location.beg_pos); |
| 257 | CHECK_EQ(11, error_location.end_pos); |
| 258 | // Should not crash. |
| 259 | const char* message = pre_impl->BuildMessage(); |
| 260 | i::Vector<const char*> args = pre_impl->BuildArgs(); |
| 261 | CHECK_GT(strlen(message), 0); |
| 262 | } |
lrn@chromium.org | fa943b7 | 2010-11-03 08:14:36 +0000 | [diff] [blame] | 263 | |
| 264 | |
| 265 | TEST(StandAlonePreParser) { |
| 266 | int marker; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 267 | i::Isolate::Current()->stack_guard()->SetStackLimit( |
lrn@chromium.org | fa943b7 | 2010-11-03 08:14:36 +0000 | [diff] [blame] | 268 | reinterpret_cast<uintptr_t>(&marker) - 128 * 1024); |
| 269 | |
| 270 | const char* programs[] = { |
| 271 | "{label: 42}", |
| 272 | "var x = 42;", |
| 273 | "function foo(x, y) { return x + y; }", |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 274 | "%ArgleBargle(glop);", |
whesse@chromium.org | f0ac72d | 2010-11-08 12:47:26 +0000 | [diff] [blame] | 275 | "var x = new new Function('this.x = 42');", |
lrn@chromium.org | fa943b7 | 2010-11-03 08:14:36 +0000 | [diff] [blame] | 276 | NULL |
| 277 | }; |
| 278 | |
ager@chromium.org | a9aa5fa | 2011-04-13 08:46:07 +0000 | [diff] [blame] | 279 | uintptr_t stack_limit = i::Isolate::Current()->stack_guard()->real_climit(); |
lrn@chromium.org | fa943b7 | 2010-11-03 08:14:36 +0000 | [diff] [blame] | 280 | for (int i = 0; programs[i]; i++) { |
| 281 | const char* program = programs[i]; |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 282 | i::Utf8ToUC16CharacterStream stream( |
| 283 | reinterpret_cast<const i::byte*>(program), |
| 284 | static_cast<unsigned>(strlen(program))); |
lrn@chromium.org | fa943b7 | 2010-11-03 08:14:36 +0000 | [diff] [blame] | 285 | i::CompleteParserRecorder log; |
lrn@chromium.org | ac2828d | 2011-06-23 06:29:21 +0000 | [diff] [blame] | 286 | i::JavaScriptScanner scanner(i::Isolate::Current()->unicode_cache()); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 287 | scanner.Initialize(&stream); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 288 | |
| 289 | v8::preparser::PreParser::PreParseResult result = |
| 290 | v8::preparser::PreParser::PreParseProgram(&scanner, |
| 291 | &log, |
| 292 | true, |
| 293 | stack_limit); |
| 294 | CHECK_EQ(v8::preparser::PreParser::kPreParseSuccess, result); |
lrn@chromium.org | fa943b7 | 2010-11-03 08:14:36 +0000 | [diff] [blame] | 295 | i::ScriptDataImpl data(log.ExtractData()); |
| 296 | CHECK(!data.has_error()); |
| 297 | } |
| 298 | } |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 299 | |
| 300 | |
| 301 | TEST(RegressChromium62639) { |
| 302 | int marker; |
ager@chromium.org | a9aa5fa | 2011-04-13 08:46:07 +0000 | [diff] [blame] | 303 | i::Isolate::Current()->stack_guard()->SetStackLimit( |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 304 | reinterpret_cast<uintptr_t>(&marker) - 128 * 1024); |
| 305 | |
| 306 | const char* program = "var x = 'something';\n" |
| 307 | "escape: function() {}"; |
| 308 | // Fails parsing expecting an identifier after "function". |
| 309 | // Before fix, didn't check *ok after Expect(Token::Identifier, ok), |
| 310 | // and then used the invalid currently scanned literal. This always |
| 311 | // failed in debug mode, and sometimes crashed in release mode. |
| 312 | |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 313 | i::Utf8ToUC16CharacterStream stream(reinterpret_cast<const i::byte*>(program), |
| 314 | static_cast<unsigned>(strlen(program))); |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 315 | i::ScriptDataImpl* data = |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 316 | i::ParserApi::PreParse(&stream, NULL); |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 317 | CHECK(data->HasError()); |
| 318 | delete data; |
| 319 | } |
| 320 | |
| 321 | |
| 322 | TEST(Regress928) { |
| 323 | // Preparsing didn't consider the catch clause of a try statement |
| 324 | // as with-content, which made it assume that a function inside |
| 325 | // the block could be lazily compiled, and an extra, unexpected, |
| 326 | // entry was added to the data. |
| 327 | int marker; |
ager@chromium.org | a9aa5fa | 2011-04-13 08:46:07 +0000 | [diff] [blame] | 328 | i::Isolate::Current()->stack_guard()->SetStackLimit( |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 329 | reinterpret_cast<uintptr_t>(&marker) - 128 * 1024); |
| 330 | |
| 331 | const char* program = |
| 332 | "try { } catch (e) { var foo = function () { /* first */ } }" |
| 333 | "var bar = function () { /* second */ }"; |
| 334 | |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 335 | i::Utf8ToUC16CharacterStream stream(reinterpret_cast<const i::byte*>(program), |
| 336 | static_cast<unsigned>(strlen(program))); |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 337 | i::ScriptDataImpl* data = |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 338 | i::ParserApi::PartialPreParse(&stream, NULL); |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 339 | CHECK(!data->HasError()); |
| 340 | |
| 341 | data->Initialize(); |
| 342 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 343 | int first_function = |
| 344 | static_cast<int>(strstr(program, "function") - program); |
| 345 | int first_lbrace = first_function + static_cast<int>(strlen("function () ")); |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 346 | CHECK_EQ('{', program[first_lbrace]); |
| 347 | i::FunctionEntry entry1 = data->GetFunctionEntry(first_lbrace); |
| 348 | CHECK(!entry1.is_valid()); |
| 349 | |
fschneider@chromium.org | 3a5fd78 | 2011-02-24 10:10:44 +0000 | [diff] [blame] | 350 | int second_function = |
| 351 | static_cast<int>(strstr(program + first_lbrace, "function") - program); |
| 352 | int second_lbrace = |
| 353 | second_function + static_cast<int>(strlen("function () ")); |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 354 | CHECK_EQ('{', program[second_lbrace]); |
| 355 | i::FunctionEntry entry2 = data->GetFunctionEntry(second_lbrace); |
| 356 | CHECK(entry2.is_valid()); |
| 357 | CHECK_EQ('}', program[entry2.end_pos() - 1]); |
| 358 | delete data; |
| 359 | } |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 360 | |
| 361 | |
| 362 | TEST(PreParseOverflow) { |
| 363 | int marker; |
ager@chromium.org | a9aa5fa | 2011-04-13 08:46:07 +0000 | [diff] [blame] | 364 | i::Isolate::Current()->stack_guard()->SetStackLimit( |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 365 | reinterpret_cast<uintptr_t>(&marker) - 128 * 1024); |
| 366 | |
| 367 | size_t kProgramSize = 1024 * 1024; |
| 368 | i::SmartPointer<char> program( |
| 369 | reinterpret_cast<char*>(malloc(kProgramSize + 1))); |
| 370 | memset(*program, '(', kProgramSize); |
| 371 | program[kProgramSize] = '\0'; |
| 372 | |
ager@chromium.org | a9aa5fa | 2011-04-13 08:46:07 +0000 | [diff] [blame] | 373 | uintptr_t stack_limit = i::Isolate::Current()->stack_guard()->real_climit(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 374 | |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 375 | i::Utf8ToUC16CharacterStream stream( |
| 376 | reinterpret_cast<const i::byte*>(*program), |
| 377 | static_cast<unsigned>(kProgramSize)); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 378 | i::CompleteParserRecorder log; |
lrn@chromium.org | ac2828d | 2011-06-23 06:29:21 +0000 | [diff] [blame] | 379 | i::JavaScriptScanner scanner(i::Isolate::Current()->unicode_cache()); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 380 | scanner.Initialize(&stream); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 381 | |
| 382 | |
| 383 | v8::preparser::PreParser::PreParseResult result = |
| 384 | v8::preparser::PreParser::PreParseProgram(&scanner, |
| 385 | &log, |
| 386 | true, |
| 387 | stack_limit); |
| 388 | CHECK_EQ(v8::preparser::PreParser::kPreParseStackOverflow, result); |
| 389 | } |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 390 | |
| 391 | |
| 392 | class TestExternalResource: public v8::String::ExternalStringResource { |
| 393 | public: |
| 394 | explicit TestExternalResource(uint16_t* data, int length) |
| 395 | : data_(data), length_(static_cast<size_t>(length)) { } |
| 396 | |
| 397 | ~TestExternalResource() { } |
| 398 | |
| 399 | const uint16_t* data() const { |
| 400 | return data_; |
| 401 | } |
| 402 | |
| 403 | size_t length() const { |
| 404 | return length_; |
| 405 | } |
| 406 | private: |
| 407 | uint16_t* data_; |
| 408 | size_t length_; |
| 409 | }; |
| 410 | |
| 411 | |
| 412 | #define CHECK_EQU(v1, v2) CHECK_EQ(static_cast<int>(v1), static_cast<int>(v2)) |
| 413 | |
| 414 | void TestCharacterStream(const char* ascii_source, |
| 415 | unsigned length, |
| 416 | unsigned start = 0, |
| 417 | unsigned end = 0) { |
| 418 | if (end == 0) end = length; |
| 419 | unsigned sub_length = end - start; |
| 420 | i::HandleScope test_scope; |
| 421 | i::SmartPointer<i::uc16> uc16_buffer(new i::uc16[length]); |
| 422 | for (unsigned i = 0; i < length; i++) { |
| 423 | uc16_buffer[i] = static_cast<i::uc16>(ascii_source[i]); |
| 424 | } |
| 425 | i::Vector<const char> ascii_vector(ascii_source, static_cast<int>(length)); |
| 426 | i::Handle<i::String> ascii_string( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 427 | FACTORY->NewStringFromAscii(ascii_vector)); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 428 | TestExternalResource resource(*uc16_buffer, length); |
| 429 | i::Handle<i::String> uc16_string( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 430 | FACTORY->NewExternalStringFromTwoByte(&resource)); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 431 | |
| 432 | i::ExternalTwoByteStringUC16CharacterStream uc16_stream( |
| 433 | i::Handle<i::ExternalTwoByteString>::cast(uc16_string), start, end); |
| 434 | i::GenericStringUC16CharacterStream string_stream(ascii_string, start, end); |
| 435 | i::Utf8ToUC16CharacterStream utf8_stream( |
| 436 | reinterpret_cast<const i::byte*>(ascii_source), end); |
| 437 | utf8_stream.SeekForward(start); |
| 438 | |
| 439 | unsigned i = start; |
| 440 | while (i < end) { |
| 441 | // Read streams one char at a time |
| 442 | CHECK_EQU(i, uc16_stream.pos()); |
| 443 | CHECK_EQU(i, string_stream.pos()); |
| 444 | CHECK_EQU(i, utf8_stream.pos()); |
| 445 | int32_t c0 = ascii_source[i]; |
| 446 | int32_t c1 = uc16_stream.Advance(); |
| 447 | int32_t c2 = string_stream.Advance(); |
| 448 | int32_t c3 = utf8_stream.Advance(); |
| 449 | i++; |
| 450 | CHECK_EQ(c0, c1); |
| 451 | CHECK_EQ(c0, c2); |
| 452 | CHECK_EQ(c0, c3); |
| 453 | CHECK_EQU(i, uc16_stream.pos()); |
| 454 | CHECK_EQU(i, string_stream.pos()); |
| 455 | CHECK_EQU(i, utf8_stream.pos()); |
| 456 | } |
| 457 | while (i > start + sub_length / 4) { |
| 458 | // Pushback, re-read, pushback again. |
| 459 | int32_t c0 = ascii_source[i - 1]; |
| 460 | CHECK_EQU(i, uc16_stream.pos()); |
| 461 | CHECK_EQU(i, string_stream.pos()); |
| 462 | CHECK_EQU(i, utf8_stream.pos()); |
| 463 | uc16_stream.PushBack(c0); |
| 464 | string_stream.PushBack(c0); |
| 465 | utf8_stream.PushBack(c0); |
| 466 | i--; |
| 467 | CHECK_EQU(i, uc16_stream.pos()); |
| 468 | CHECK_EQU(i, string_stream.pos()); |
| 469 | CHECK_EQU(i, utf8_stream.pos()); |
| 470 | int32_t c1 = uc16_stream.Advance(); |
| 471 | int32_t c2 = string_stream.Advance(); |
| 472 | int32_t c3 = utf8_stream.Advance(); |
| 473 | i++; |
| 474 | CHECK_EQU(i, uc16_stream.pos()); |
| 475 | CHECK_EQU(i, string_stream.pos()); |
| 476 | CHECK_EQU(i, utf8_stream.pos()); |
| 477 | CHECK_EQ(c0, c1); |
| 478 | CHECK_EQ(c0, c2); |
| 479 | CHECK_EQ(c0, c3); |
| 480 | uc16_stream.PushBack(c0); |
| 481 | string_stream.PushBack(c0); |
| 482 | utf8_stream.PushBack(c0); |
| 483 | i--; |
| 484 | CHECK_EQU(i, uc16_stream.pos()); |
| 485 | CHECK_EQU(i, string_stream.pos()); |
| 486 | CHECK_EQU(i, utf8_stream.pos()); |
| 487 | } |
| 488 | unsigned halfway = start + sub_length / 2; |
| 489 | uc16_stream.SeekForward(halfway - i); |
| 490 | string_stream.SeekForward(halfway - i); |
| 491 | utf8_stream.SeekForward(halfway - i); |
| 492 | i = halfway; |
| 493 | CHECK_EQU(i, uc16_stream.pos()); |
| 494 | CHECK_EQU(i, string_stream.pos()); |
| 495 | CHECK_EQU(i, utf8_stream.pos()); |
| 496 | |
| 497 | while (i < end) { |
| 498 | // Read streams one char at a time |
| 499 | CHECK_EQU(i, uc16_stream.pos()); |
| 500 | CHECK_EQU(i, string_stream.pos()); |
| 501 | CHECK_EQU(i, utf8_stream.pos()); |
| 502 | int32_t c0 = ascii_source[i]; |
| 503 | int32_t c1 = uc16_stream.Advance(); |
| 504 | int32_t c2 = string_stream.Advance(); |
| 505 | int32_t c3 = utf8_stream.Advance(); |
| 506 | i++; |
| 507 | CHECK_EQ(c0, c1); |
| 508 | CHECK_EQ(c0, c2); |
| 509 | CHECK_EQ(c0, c3); |
| 510 | CHECK_EQU(i, uc16_stream.pos()); |
| 511 | CHECK_EQU(i, string_stream.pos()); |
| 512 | CHECK_EQU(i, utf8_stream.pos()); |
| 513 | } |
| 514 | |
| 515 | int32_t c1 = uc16_stream.Advance(); |
| 516 | int32_t c2 = string_stream.Advance(); |
| 517 | int32_t c3 = utf8_stream.Advance(); |
| 518 | CHECK_LT(c1, 0); |
| 519 | CHECK_LT(c2, 0); |
| 520 | CHECK_LT(c3, 0); |
| 521 | } |
| 522 | |
| 523 | |
| 524 | TEST(CharacterStreams) { |
| 525 | v8::HandleScope handles; |
| 526 | v8::Persistent<v8::Context> context = v8::Context::New(); |
| 527 | v8::Context::Scope context_scope(context); |
| 528 | |
| 529 | TestCharacterStream("abc\0\n\r\x7f", 7); |
| 530 | static const unsigned kBigStringSize = 4096; |
| 531 | char buffer[kBigStringSize + 1]; |
| 532 | for (unsigned i = 0; i < kBigStringSize; i++) { |
| 533 | buffer[i] = static_cast<char>(i & 0x7f); |
| 534 | } |
| 535 | TestCharacterStream(buffer, kBigStringSize); |
| 536 | |
| 537 | TestCharacterStream(buffer, kBigStringSize, 576, 3298); |
| 538 | |
| 539 | TestCharacterStream("\0", 1); |
| 540 | TestCharacterStream("", 0); |
| 541 | } |
| 542 | |
| 543 | |
| 544 | TEST(Utf8CharacterStream) { |
| 545 | static const unsigned kMaxUC16CharU = unibrow::Utf8::kMaxThreeByteChar; |
| 546 | static const int kMaxUC16Char = static_cast<int>(kMaxUC16CharU); |
| 547 | |
| 548 | static const int kAllUtf8CharsSize = |
| 549 | (unibrow::Utf8::kMaxOneByteChar + 1) + |
| 550 | (unibrow::Utf8::kMaxTwoByteChar - unibrow::Utf8::kMaxOneByteChar) * 2 + |
| 551 | (unibrow::Utf8::kMaxThreeByteChar - unibrow::Utf8::kMaxTwoByteChar) * 3; |
| 552 | static const unsigned kAllUtf8CharsSizeU = |
| 553 | static_cast<unsigned>(kAllUtf8CharsSize); |
| 554 | |
| 555 | char buffer[kAllUtf8CharsSizeU]; |
| 556 | unsigned cursor = 0; |
| 557 | for (int i = 0; i <= kMaxUC16Char; i++) { |
| 558 | cursor += unibrow::Utf8::Encode(buffer + cursor, i); |
| 559 | } |
| 560 | ASSERT(cursor == kAllUtf8CharsSizeU); |
| 561 | |
| 562 | i::Utf8ToUC16CharacterStream stream(reinterpret_cast<const i::byte*>(buffer), |
| 563 | kAllUtf8CharsSizeU); |
| 564 | for (int i = 0; i <= kMaxUC16Char; i++) { |
| 565 | CHECK_EQU(i, stream.pos()); |
| 566 | int32_t c = stream.Advance(); |
| 567 | CHECK_EQ(i, c); |
| 568 | CHECK_EQU(i + 1, stream.pos()); |
| 569 | } |
| 570 | for (int i = kMaxUC16Char; i >= 0; i--) { |
| 571 | CHECK_EQU(i + 1, stream.pos()); |
| 572 | stream.PushBack(i); |
| 573 | CHECK_EQU(i, stream.pos()); |
| 574 | } |
| 575 | int i = 0; |
| 576 | while (stream.pos() < kMaxUC16CharU) { |
| 577 | CHECK_EQU(i, stream.pos()); |
| 578 | unsigned progress = stream.SeekForward(12); |
| 579 | i += progress; |
| 580 | int32_t c = stream.Advance(); |
| 581 | if (i <= kMaxUC16Char) { |
| 582 | CHECK_EQ(i, c); |
| 583 | } else { |
| 584 | CHECK_EQ(-1, c); |
| 585 | } |
| 586 | i += 1; |
| 587 | CHECK_EQU(i, stream.pos()); |
| 588 | } |
| 589 | } |
| 590 | |
| 591 | #undef CHECK_EQU |
| 592 | |
| 593 | void TestStreamScanner(i::UC16CharacterStream* stream, |
| 594 | i::Token::Value* expected_tokens, |
| 595 | int skip_pos = 0, // Zero means not skipping. |
| 596 | int skip_to = 0) { |
lrn@chromium.org | ac2828d | 2011-06-23 06:29:21 +0000 | [diff] [blame] | 597 | i::JavaScriptScanner scanner(i::Isolate::Current()->unicode_cache()); |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 598 | scanner.Initialize(stream); |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 599 | |
| 600 | int i = 0; |
| 601 | do { |
| 602 | i::Token::Value expected = expected_tokens[i]; |
| 603 | i::Token::Value actual = scanner.Next(); |
| 604 | CHECK_EQ(i::Token::String(expected), i::Token::String(actual)); |
| 605 | if (scanner.location().end_pos == skip_pos) { |
| 606 | scanner.SeekForward(skip_to); |
| 607 | } |
| 608 | i++; |
| 609 | } while (expected_tokens[i] != i::Token::ILLEGAL); |
| 610 | } |
| 611 | |
| 612 | TEST(StreamScanner) { |
| 613 | const char* str1 = "{ foo get for : */ <- \n\n /*foo*/ bib"; |
| 614 | i::Utf8ToUC16CharacterStream stream1(reinterpret_cast<const i::byte*>(str1), |
| 615 | static_cast<unsigned>(strlen(str1))); |
| 616 | i::Token::Value expectations1[] = { |
| 617 | i::Token::LBRACE, |
| 618 | i::Token::IDENTIFIER, |
| 619 | i::Token::IDENTIFIER, |
| 620 | i::Token::FOR, |
| 621 | i::Token::COLON, |
| 622 | i::Token::MUL, |
| 623 | i::Token::DIV, |
| 624 | i::Token::LT, |
| 625 | i::Token::SUB, |
| 626 | i::Token::IDENTIFIER, |
| 627 | i::Token::EOS, |
| 628 | i::Token::ILLEGAL |
| 629 | }; |
| 630 | TestStreamScanner(&stream1, expectations1, 0, 0); |
| 631 | |
| 632 | const char* str2 = "case default const {THIS\nPART\nSKIPPED} do"; |
| 633 | i::Utf8ToUC16CharacterStream stream2(reinterpret_cast<const i::byte*>(str2), |
| 634 | static_cast<unsigned>(strlen(str2))); |
| 635 | i::Token::Value expectations2[] = { |
| 636 | i::Token::CASE, |
| 637 | i::Token::DEFAULT, |
| 638 | i::Token::CONST, |
| 639 | i::Token::LBRACE, |
| 640 | // Skipped part here |
| 641 | i::Token::RBRACE, |
| 642 | i::Token::DO, |
| 643 | i::Token::EOS, |
| 644 | i::Token::ILLEGAL |
| 645 | }; |
| 646 | ASSERT_EQ('{', str2[19]); |
| 647 | ASSERT_EQ('}', str2[37]); |
| 648 | TestStreamScanner(&stream2, expectations2, 20, 37); |
| 649 | |
| 650 | const char* str3 = "{}}}}"; |
| 651 | i::Token::Value expectations3[] = { |
| 652 | i::Token::LBRACE, |
| 653 | i::Token::RBRACE, |
| 654 | i::Token::RBRACE, |
| 655 | i::Token::RBRACE, |
| 656 | i::Token::RBRACE, |
| 657 | i::Token::EOS, |
| 658 | i::Token::ILLEGAL |
| 659 | }; |
| 660 | // Skip zero-four RBRACEs. |
| 661 | for (int i = 0; i <= 4; i++) { |
| 662 | expectations3[6 - i] = i::Token::ILLEGAL; |
| 663 | expectations3[5 - i] = i::Token::EOS; |
| 664 | i::Utf8ToUC16CharacterStream stream3( |
| 665 | reinterpret_cast<const i::byte*>(str3), |
| 666 | static_cast<unsigned>(strlen(str3))); |
| 667 | TestStreamScanner(&stream3, expectations3, 1, 1 + i); |
| 668 | } |
| 669 | } |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 670 | |
| 671 | |
| 672 | void TestScanRegExp(const char* re_source, const char* expected) { |
| 673 | i::Utf8ToUC16CharacterStream stream( |
| 674 | reinterpret_cast<const i::byte*>(re_source), |
| 675 | static_cast<unsigned>(strlen(re_source))); |
lrn@chromium.org | ac2828d | 2011-06-23 06:29:21 +0000 | [diff] [blame] | 676 | i::JavaScriptScanner scanner(i::Isolate::Current()->unicode_cache()); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 677 | scanner.Initialize(&stream); |
| 678 | |
| 679 | i::Token::Value start = scanner.peek(); |
| 680 | CHECK(start == i::Token::DIV || start == i::Token::ASSIGN_DIV); |
| 681 | CHECK(scanner.ScanRegExpPattern(start == i::Token::ASSIGN_DIV)); |
| 682 | scanner.Next(); // Current token is now the regexp literal. |
| 683 | CHECK(scanner.is_literal_ascii()); |
| 684 | i::Vector<const char> actual = scanner.literal_ascii_string(); |
| 685 | for (int i = 0; i < actual.length(); i++) { |
| 686 | CHECK_NE('\0', expected[i]); |
| 687 | CHECK_EQ(expected[i], actual[i]); |
| 688 | } |
| 689 | } |
| 690 | |
| 691 | |
| 692 | TEST(RegExpScanning) { |
| 693 | // RegExp token with added garbage at the end. The scanner should only |
| 694 | // scan the RegExp until the terminating slash just before "flipperwald". |
| 695 | TestScanRegExp("/b/flipperwald", "b"); |
| 696 | // Incomplete escape sequences doesn't hide the terminating slash. |
| 697 | TestScanRegExp("/\\x/flipperwald", "\\x"); |
| 698 | TestScanRegExp("/\\u/flipperwald", "\\u"); |
| 699 | TestScanRegExp("/\\u1/flipperwald", "\\u1"); |
| 700 | TestScanRegExp("/\\u12/flipperwald", "\\u12"); |
| 701 | TestScanRegExp("/\\u123/flipperwald", "\\u123"); |
| 702 | TestScanRegExp("/\\c/flipperwald", "\\c"); |
| 703 | TestScanRegExp("/\\c//flipperwald", "\\c"); |
| 704 | // Slashes inside character classes are not terminating. |
| 705 | TestScanRegExp("/[/]/flipperwald", "[/]"); |
| 706 | TestScanRegExp("/[\\s-/]/flipperwald", "[\\s-/]"); |
| 707 | // Incomplete escape sequences inside a character class doesn't hide |
| 708 | // the end of the character class. |
| 709 | TestScanRegExp("/[\\c/]/flipperwald", "[\\c/]"); |
| 710 | TestScanRegExp("/[\\c]/flipperwald", "[\\c]"); |
| 711 | TestScanRegExp("/[\\x]/flipperwald", "[\\x]"); |
| 712 | TestScanRegExp("/[\\x1]/flipperwald", "[\\x1]"); |
| 713 | TestScanRegExp("/[\\u]/flipperwald", "[\\u]"); |
| 714 | TestScanRegExp("/[\\u1]/flipperwald", "[\\u1]"); |
| 715 | TestScanRegExp("/[\\u12]/flipperwald", "[\\u12]"); |
| 716 | TestScanRegExp("/[\\u123]/flipperwald", "[\\u123]"); |
| 717 | // Escaped ']'s wont end the character class. |
| 718 | TestScanRegExp("/[\\]/]/flipperwald", "[\\]/]"); |
| 719 | // Escaped slashes are not terminating. |
| 720 | TestScanRegExp("/\\//flipperwald", "\\/"); |
| 721 | // Starting with '=' works too. |
| 722 | TestScanRegExp("/=/", "="); |
| 723 | TestScanRegExp("/=?/", "=?"); |
| 724 | } |