Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5 | #include "src/builtins.h" |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 6 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 7 | #include "src/api-arguments.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 8 | #include "src/api-natives.h" |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 9 | #include "src/api.h" |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 10 | #include "src/base/ieee754.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 11 | #include "src/base/once.h" |
| 12 | #include "src/bootstrapper.h" |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 13 | #include "src/code-factory.h" |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 14 | #include "src/code-stub-assembler.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 15 | #include "src/dateparser-inl.h" |
| 16 | #include "src/elements.h" |
| 17 | #include "src/frames-inl.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 18 | #include "src/gdb-jit.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 19 | #include "src/ic/handler-compiler.h" |
| 20 | #include "src/ic/ic.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 21 | #include "src/isolate-inl.h" |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 22 | #include "src/json-parser.h" |
| 23 | #include "src/json-stringifier.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 24 | #include "src/messages.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 25 | #include "src/property-descriptor.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 26 | #include "src/prototype.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 27 | #include "src/string-builder.h" |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 28 | #include "src/uri.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 29 | #include "src/vm-state-inl.h" |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 30 | |
| 31 | namespace v8 { |
| 32 | namespace internal { |
| 33 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 34 | namespace { |
| 35 | |
| 36 | // Arguments object passed to C++ builtins. |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 37 | class BuiltinArguments : public Arguments { |
| 38 | public: |
| 39 | BuiltinArguments(int length, Object** arguments) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 40 | : Arguments(length, arguments) { |
| 41 | // Check we have at least the receiver. |
| 42 | DCHECK_LE(1, this->length()); |
| 43 | } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 44 | |
| 45 | Object*& operator[] (int index) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 46 | DCHECK_LT(index, length()); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 47 | return Arguments::operator[](index); |
| 48 | } |
| 49 | |
| 50 | template <class S> Handle<S> at(int index) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 51 | DCHECK_LT(index, length()); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 52 | return Arguments::at<S>(index); |
| 53 | } |
| 54 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 55 | Handle<Object> atOrUndefined(Isolate* isolate, int index) { |
| 56 | if (index >= length()) { |
| 57 | return isolate->factory()->undefined_value(); |
| 58 | } |
| 59 | return at<Object>(index); |
| 60 | } |
| 61 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 62 | Handle<Object> receiver() { |
| 63 | return Arguments::at<Object>(0); |
| 64 | } |
| 65 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 66 | template <class S> |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 67 | Handle<S> target() { |
| 68 | return Arguments::at<S>(Arguments::length() - 2); |
| 69 | } |
| 70 | Handle<HeapObject> new_target() { |
| 71 | return Arguments::at<HeapObject>(Arguments::length() - 1); |
| 72 | } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 73 | |
| 74 | // Gets the total number of arguments including the receiver (but |
| 75 | // excluding extra arguments). |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 76 | int length() const { return Arguments::length() - 2; } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 77 | }; |
| 78 | |
| 79 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 80 | // ---------------------------------------------------------------------------- |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 81 | // Support macro for defining builtins in C++. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 82 | // ---------------------------------------------------------------------------- |
| 83 | // |
| 84 | // A builtin function is defined by writing: |
| 85 | // |
| 86 | // BUILTIN(name) { |
| 87 | // ... |
| 88 | // } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 89 | // |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 90 | // In the body of the builtin function the arguments can be accessed |
| 91 | // through the BuiltinArguments object args. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 92 | // TODO(cbruni): add global flag to check whether any tracing events have been |
| 93 | // enabled. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 94 | #define BUILTIN(name) \ |
| 95 | MUST_USE_RESULT static Object* Builtin_Impl_##name(BuiltinArguments args, \ |
| 96 | Isolate* isolate); \ |
| 97 | \ |
| 98 | V8_NOINLINE static Object* Builtin_Impl_Stats_##name( \ |
| 99 | int args_length, Object** args_object, Isolate* isolate) { \ |
| 100 | BuiltinArguments args(args_length, args_object); \ |
| 101 | RuntimeCallTimerScope timer(isolate, &RuntimeCallStats::Builtin_##name); \ |
| 102 | TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("v8.runtime"), \ |
| 103 | "V8.Builtin_" #name); \ |
| 104 | return Builtin_Impl_##name(args, isolate); \ |
| 105 | } \ |
| 106 | \ |
| 107 | MUST_USE_RESULT static Object* Builtin_##name( \ |
| 108 | int args_length, Object** args_object, Isolate* isolate) { \ |
| 109 | if (FLAG_runtime_call_stats) { \ |
| 110 | return Builtin_Impl_Stats_##name(args_length, args_object, isolate); \ |
| 111 | } \ |
| 112 | BuiltinArguments args(args_length, args_object); \ |
| 113 | return Builtin_Impl_##name(args, isolate); \ |
| 114 | } \ |
| 115 | \ |
| 116 | MUST_USE_RESULT static Object* Builtin_Impl_##name(BuiltinArguments args, \ |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 117 | Isolate* isolate) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 118 | |
| 119 | // ---------------------------------------------------------------------------- |
| 120 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 121 | #define CHECK_RECEIVER(Type, name, method) \ |
| 122 | if (!args.receiver()->Is##Type()) { \ |
| 123 | THROW_NEW_ERROR_RETURN_FAILURE( \ |
| 124 | isolate, \ |
| 125 | NewTypeError(MessageTemplate::kIncompatibleMethodReceiver, \ |
| 126 | isolate->factory()->NewStringFromAsciiChecked(method), \ |
| 127 | args.receiver())); \ |
| 128 | } \ |
| 129 | Handle<Type> name = Handle<Type>::cast(args.receiver()) |
| 130 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 131 | // Throws a TypeError for {method} if the receiver is not coercible to Object, |
| 132 | // or converts the receiver to a String otherwise and assigns it to a new var |
| 133 | // with the given {name}. |
| 134 | #define TO_THIS_STRING(name, method) \ |
| 135 | if (args.receiver()->IsNull(isolate) || \ |
| 136 | args.receiver()->IsUndefined(isolate)) { \ |
| 137 | THROW_NEW_ERROR_RETURN_FAILURE( \ |
| 138 | isolate, \ |
| 139 | NewTypeError(MessageTemplate::kCalledOnNullOrUndefined, \ |
| 140 | isolate->factory()->NewStringFromAsciiChecked(method))); \ |
| 141 | } \ |
| 142 | Handle<String> name; \ |
| 143 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( \ |
| 144 | isolate, name, Object::ToString(isolate, args.receiver())) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 145 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 146 | inline bool ClampedToInteger(Isolate* isolate, Object* object, int* out) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 147 | // This is an extended version of ECMA-262 7.1.11 handling signed values |
| 148 | // Try to convert object to a number and clamp values to [kMinInt, kMaxInt] |
| 149 | if (object->IsSmi()) { |
| 150 | *out = Smi::cast(object)->value(); |
| 151 | return true; |
| 152 | } else if (object->IsHeapNumber()) { |
| 153 | double value = HeapNumber::cast(object)->value(); |
| 154 | if (std::isnan(value)) { |
| 155 | *out = 0; |
| 156 | } else if (value > kMaxInt) { |
| 157 | *out = kMaxInt; |
| 158 | } else if (value < kMinInt) { |
| 159 | *out = kMinInt; |
| 160 | } else { |
| 161 | *out = static_cast<int>(value); |
| 162 | } |
| 163 | return true; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 164 | } else if (object->IsUndefined(isolate) || object->IsNull(isolate)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 165 | *out = 0; |
| 166 | return true; |
| 167 | } else if (object->IsBoolean()) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 168 | *out = object->IsTrue(isolate); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 169 | return true; |
| 170 | } |
| 171 | return false; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 172 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 173 | |
| 174 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 175 | inline bool GetSloppyArgumentsLength(Isolate* isolate, Handle<JSObject> object, |
| 176 | int* out) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 177 | Context* context = *isolate->native_context(); |
| 178 | Map* map = object->map(); |
| 179 | if (map != context->sloppy_arguments_map() && |
| 180 | map != context->strict_arguments_map() && |
| 181 | map != context->fast_aliased_arguments_map()) { |
| 182 | return false; |
| 183 | } |
| 184 | DCHECK(object->HasFastElements() || object->HasFastArgumentsElements()); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 185 | Object* len_obj = object->InObjectPropertyAt(JSArgumentsObject::kLengthIndex); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 186 | if (!len_obj->IsSmi()) return false; |
| 187 | *out = Max(0, Smi::cast(len_obj)->value()); |
| 188 | return *out <= object->elements()->length(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 189 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 190 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 191 | inline bool PrototypeHasNoElements(Isolate* isolate, JSObject* object) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 192 | DisallowHeapAllocation no_gc; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 193 | HeapObject* prototype = HeapObject::cast(object->map()->prototype()); |
| 194 | HeapObject* null = isolate->heap()->null_value(); |
| 195 | HeapObject* empty = isolate->heap()->empty_fixed_array(); |
| 196 | while (prototype != null) { |
| 197 | Map* map = prototype->map(); |
| 198 | if (map->instance_type() <= LAST_CUSTOM_ELEMENTS_RECEIVER) return false; |
| 199 | if (JSObject::cast(prototype)->elements() != empty) return false; |
| 200 | prototype = HeapObject::cast(map->prototype()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 201 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 202 | return true; |
| 203 | } |
| 204 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 205 | inline bool IsJSArrayFastElementMovingAllowed(Isolate* isolate, |
| 206 | JSArray* receiver) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 207 | return PrototypeHasNoElements(isolate, receiver); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 208 | } |
| 209 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 210 | inline bool HasSimpleElements(JSObject* current) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 211 | return current->map()->instance_type() > LAST_CUSTOM_ELEMENTS_RECEIVER && |
| 212 | !current->GetElementsAccessor()->HasAccessors(current); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 213 | } |
| 214 | |
| 215 | inline bool HasOnlySimpleReceiverElements(Isolate* isolate, |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 216 | JSObject* receiver) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 217 | // Check that we have no accessors on the receiver's elements. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 218 | if (!HasSimpleElements(receiver)) return false; |
| 219 | return PrototypeHasNoElements(isolate, receiver); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 220 | } |
| 221 | |
| 222 | inline bool HasOnlySimpleElements(Isolate* isolate, JSReceiver* receiver) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 223 | DisallowHeapAllocation no_gc; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 224 | PrototypeIterator iter(isolate, receiver, kStartAtReceiver); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 225 | for (; !iter.IsAtEnd(); iter.Advance()) { |
| 226 | if (iter.GetCurrent()->IsJSProxy()) return false; |
| 227 | JSObject* current = iter.GetCurrent<JSObject>(); |
| 228 | if (!HasSimpleElements(current)) return false; |
| 229 | } |
| 230 | return true; |
| 231 | } |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 232 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 233 | // Returns |false| if not applicable. |
John Reck | 5913587 | 2010-11-02 12:39:01 -0700 | [diff] [blame] | 234 | MUST_USE_RESULT |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 235 | inline bool EnsureJSArrayWithWritableFastElements(Isolate* isolate, |
| 236 | Handle<Object> receiver, |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 237 | BuiltinArguments* args, |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 238 | int first_added_arg) { |
| 239 | if (!receiver->IsJSArray()) return false; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 240 | Handle<JSArray> array = Handle<JSArray>::cast(receiver); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 241 | ElementsKind origin_kind = array->GetElementsKind(); |
| 242 | if (IsDictionaryElementsKind(origin_kind)) return false; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 243 | if (!array->map()->is_extensible()) return false; |
| 244 | if (args == nullptr) return true; |
| 245 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 246 | // If there may be elements accessors in the prototype chain, the fast path |
| 247 | // cannot be used if there arguments to add to the array. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 248 | if (!IsJSArrayFastElementMovingAllowed(isolate, *array)) return false; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 249 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 250 | // Adding elements to the array prototype would break code that makes sure |
| 251 | // it has no elements. Handle that elsewhere. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 252 | if (isolate->IsAnyInitialArrayPrototype(array)) return false; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 253 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 254 | // Need to ensure that the arguments passed in args can be contained in |
| 255 | // the array. |
| 256 | int args_length = args->length(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 257 | if (first_added_arg >= args_length) return true; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 258 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 259 | if (IsFastObjectElementsKind(origin_kind)) return true; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 260 | ElementsKind target_kind = origin_kind; |
| 261 | { |
| 262 | DisallowHeapAllocation no_gc; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 263 | for (int i = first_added_arg; i < args_length; i++) { |
| 264 | Object* arg = (*args)[i]; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 265 | if (arg->IsHeapObject()) { |
| 266 | if (arg->IsHeapNumber()) { |
| 267 | target_kind = FAST_DOUBLE_ELEMENTS; |
| 268 | } else { |
| 269 | target_kind = FAST_ELEMENTS; |
| 270 | break; |
| 271 | } |
| 272 | } |
| 273 | } |
| 274 | } |
| 275 | if (target_kind != origin_kind) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 276 | // Use a short-lived HandleScope to avoid creating several copies of the |
| 277 | // elements handle which would cause issues when left-trimming later-on. |
| 278 | HandleScope scope(isolate); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 279 | JSObject::TransitionElementsKind(array, target_kind); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 280 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 281 | return true; |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 282 | } |
| 283 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 284 | MUST_USE_RESULT static Object* CallJsIntrinsic(Isolate* isolate, |
| 285 | Handle<JSFunction> function, |
| 286 | BuiltinArguments args) { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 287 | HandleScope handleScope(isolate); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 288 | int argc = args.length() - 1; |
| 289 | ScopedVector<Handle<Object> > argv(argc); |
| 290 | for (int i = 0; i < argc; ++i) { |
| 291 | argv[i] = args.at<Object>(i + 1); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 292 | } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 293 | RETURN_RESULT_OR_FAILURE( |
| 294 | isolate, |
| 295 | Execution::Call(isolate, function, args.receiver(), argc, argv.start())); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 296 | } |
| 297 | |
| 298 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 299 | } // namespace |
| 300 | |
| 301 | |
| 302 | BUILTIN(Illegal) { |
| 303 | UNREACHABLE(); |
| 304 | return isolate->heap()->undefined_value(); // Make compiler happy. |
| 305 | } |
| 306 | |
| 307 | |
| 308 | BUILTIN(EmptyFunction) { return isolate->heap()->undefined_value(); } |
| 309 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 310 | void Builtins::Generate_ArrayIsArray(CodeStubAssembler* assembler) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 311 | typedef compiler::Node Node; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 312 | typedef CodeStubAssembler::Label Label; |
| 313 | |
| 314 | Node* object = assembler->Parameter(1); |
| 315 | Node* context = assembler->Parameter(4); |
| 316 | |
| 317 | Label call_runtime(assembler), return_true(assembler), |
| 318 | return_false(assembler); |
| 319 | |
| 320 | assembler->GotoIf(assembler->WordIsSmi(object), &return_false); |
| 321 | Node* instance_type = assembler->LoadInstanceType(object); |
| 322 | |
| 323 | assembler->GotoIf(assembler->Word32Equal( |
| 324 | instance_type, assembler->Int32Constant(JS_ARRAY_TYPE)), |
| 325 | &return_true); |
| 326 | |
| 327 | // TODO(verwaest): Handle proxies in-place. |
| 328 | assembler->Branch(assembler->Word32Equal( |
| 329 | instance_type, assembler->Int32Constant(JS_PROXY_TYPE)), |
| 330 | &call_runtime, &return_false); |
| 331 | |
| 332 | assembler->Bind(&return_true); |
| 333 | assembler->Return(assembler->BooleanConstant(true)); |
| 334 | |
| 335 | assembler->Bind(&return_false); |
| 336 | assembler->Return(assembler->BooleanConstant(false)); |
| 337 | |
| 338 | assembler->Bind(&call_runtime); |
| 339 | assembler->Return( |
| 340 | assembler->CallRuntime(Runtime::kArrayIsArray, context, object)); |
| 341 | } |
| 342 | |
| 343 | void Builtins::Generate_ObjectHasOwnProperty(CodeStubAssembler* assembler) { |
| 344 | typedef compiler::Node Node; |
| 345 | typedef CodeStubAssembler::Label Label; |
| 346 | typedef CodeStubAssembler::Variable Variable; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 347 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 348 | Node* object = assembler->Parameter(0); |
| 349 | Node* key = assembler->Parameter(1); |
| 350 | Node* context = assembler->Parameter(4); |
| 351 | |
| 352 | Label call_runtime(assembler), return_true(assembler), |
| 353 | return_false(assembler); |
| 354 | |
| 355 | // Smi receivers do not have own properties. |
| 356 | Label if_objectisnotsmi(assembler); |
| 357 | assembler->Branch(assembler->WordIsSmi(object), &return_false, |
| 358 | &if_objectisnotsmi); |
| 359 | assembler->Bind(&if_objectisnotsmi); |
| 360 | |
| 361 | Node* map = assembler->LoadMap(object); |
| 362 | Node* instance_type = assembler->LoadMapInstanceType(map); |
| 363 | |
| 364 | Variable var_index(assembler, MachineRepresentation::kWord32); |
| 365 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 366 | Label keyisindex(assembler), if_iskeyunique(assembler); |
| 367 | assembler->TryToName(key, &keyisindex, &var_index, &if_iskeyunique, |
| 368 | &call_runtime); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 369 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 370 | assembler->Bind(&if_iskeyunique); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 371 | assembler->TryHasOwnProperty(object, map, instance_type, key, &return_true, |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 372 | &return_false, &call_runtime); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 373 | |
| 374 | assembler->Bind(&keyisindex); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 375 | assembler->TryLookupElement(object, map, instance_type, var_index.value(), |
| 376 | &return_true, &return_false, &call_runtime); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 377 | |
| 378 | assembler->Bind(&return_true); |
| 379 | assembler->Return(assembler->BooleanConstant(true)); |
| 380 | |
| 381 | assembler->Bind(&return_false); |
| 382 | assembler->Return(assembler->BooleanConstant(false)); |
| 383 | |
| 384 | assembler->Bind(&call_runtime); |
| 385 | assembler->Return(assembler->CallRuntime(Runtime::kObjectHasOwnProperty, |
| 386 | context, object, key)); |
| 387 | } |
| 388 | |
| 389 | namespace { |
| 390 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 391 | Object* DoArrayPush(Isolate* isolate, BuiltinArguments args) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 392 | HandleScope scope(isolate); |
| 393 | Handle<Object> receiver = args.receiver(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 394 | if (!EnsureJSArrayWithWritableFastElements(isolate, receiver, &args, 1)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 395 | return CallJsIntrinsic(isolate, isolate->array_push(), args); |
John Reck | 5913587 | 2010-11-02 12:39:01 -0700 | [diff] [blame] | 396 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 397 | // Fast Elements Path |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 398 | int to_add = args.length() - 1; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 399 | Handle<JSArray> array = Handle<JSArray>::cast(receiver); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 400 | int len = Smi::cast(array->length())->value(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 401 | if (to_add == 0) return Smi::FromInt(len); |
| 402 | |
| 403 | // Currently fixed arrays cannot grow too big, so we should never hit this. |
| 404 | DCHECK_LE(to_add, Smi::kMaxValue - Smi::cast(array->length())->value()); |
| 405 | |
| 406 | if (JSArray::HasReadOnlyLength(array)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 407 | return CallJsIntrinsic(isolate, isolate->array_push(), args); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 408 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 409 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 410 | ElementsAccessor* accessor = array->GetElementsAccessor(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 411 | int new_length = accessor->Push(array, &args, to_add); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 412 | return Smi::FromInt(new_length); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 413 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 414 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 415 | } // namespace |
| 416 | |
| 417 | BUILTIN(ArrayPush) { return DoArrayPush(isolate, args); } |
| 418 | |
| 419 | // TODO(verwaest): This is a temporary helper until the FastArrayPush stub can |
| 420 | // tailcall to the builtin directly. |
| 421 | RUNTIME_FUNCTION(Runtime_ArrayPush) { |
| 422 | DCHECK_EQ(2, args.length()); |
| 423 | Arguments* incoming = reinterpret_cast<Arguments*>(args[0]); |
| 424 | // Rewrap the arguments as builtins arguments. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 425 | BuiltinArguments caller_args(incoming->length() + 3, |
| 426 | incoming->arguments() + 1); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 427 | return DoArrayPush(isolate, caller_args); |
| 428 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 429 | |
| 430 | BUILTIN(ArrayPop) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 431 | HandleScope scope(isolate); |
| 432 | Handle<Object> receiver = args.receiver(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 433 | if (!EnsureJSArrayWithWritableFastElements(isolate, receiver, nullptr, 0)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 434 | return CallJsIntrinsic(isolate, isolate->array_pop(), args); |
John Reck | 5913587 | 2010-11-02 12:39:01 -0700 | [diff] [blame] | 435 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 436 | |
| 437 | Handle<JSArray> array = Handle<JSArray>::cast(receiver); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 438 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 439 | uint32_t len = static_cast<uint32_t>(Smi::cast(array->length())->value()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 440 | if (len == 0) return isolate->heap()->undefined_value(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 441 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 442 | if (JSArray::HasReadOnlyLength(array)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 443 | return CallJsIntrinsic(isolate, isolate->array_pop(), args); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 444 | } |
| 445 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 446 | Handle<Object> result; |
| 447 | if (IsJSArrayFastElementMovingAllowed(isolate, JSArray::cast(*receiver))) { |
| 448 | // Fast Elements Path |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 449 | result = array->GetElementsAccessor()->Pop(array); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 450 | } else { |
| 451 | // Use Slow Lookup otherwise |
| 452 | uint32_t new_length = len - 1; |
| 453 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 454 | isolate, result, JSReceiver::GetElement(isolate, array, new_length)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 455 | JSArray::SetLength(array, new_length); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 456 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 457 | return *result; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 458 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 459 | |
| 460 | |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 461 | BUILTIN(ArrayShift) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 462 | HandleScope scope(isolate); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 463 | Heap* heap = isolate->heap(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 464 | Handle<Object> receiver = args.receiver(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 465 | if (!EnsureJSArrayWithWritableFastElements(isolate, receiver, nullptr, 0) || |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 466 | !IsJSArrayFastElementMovingAllowed(isolate, JSArray::cast(*receiver))) { |
| 467 | return CallJsIntrinsic(isolate, isolate->array_shift(), args); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 468 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 469 | Handle<JSArray> array = Handle<JSArray>::cast(receiver); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 470 | |
| 471 | int len = Smi::cast(array->length())->value(); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 472 | if (len == 0) return heap->undefined_value(); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 473 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 474 | if (JSArray::HasReadOnlyLength(array)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 475 | return CallJsIntrinsic(isolate, isolate->array_shift(), args); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 476 | } |
| 477 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 478 | Handle<Object> first = array->GetElementsAccessor()->Shift(array); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 479 | return *first; |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 480 | } |
| 481 | |
| 482 | |
| 483 | BUILTIN(ArrayUnshift) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 484 | HandleScope scope(isolate); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 485 | Handle<Object> receiver = args.receiver(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 486 | if (!EnsureJSArrayWithWritableFastElements(isolate, receiver, &args, 1)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 487 | return CallJsIntrinsic(isolate, isolate->array_unshift(), args); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 488 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 489 | Handle<JSArray> array = Handle<JSArray>::cast(receiver); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 490 | int to_add = args.length() - 1; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 491 | if (to_add == 0) return array->length(); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 492 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 493 | // Currently fixed arrays cannot grow too big, so we should never hit this. |
| 494 | DCHECK_LE(to_add, Smi::kMaxValue - Smi::cast(array->length())->value()); |
| 495 | |
| 496 | if (JSArray::HasReadOnlyLength(array)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 497 | return CallJsIntrinsic(isolate, isolate->array_unshift(), args); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 498 | } |
| 499 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 500 | ElementsAccessor* accessor = array->GetElementsAccessor(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 501 | int new_length = accessor->Unshift(array, &args, to_add); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 502 | return Smi::FromInt(new_length); |
| 503 | } |
| 504 | |
| 505 | |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 506 | BUILTIN(ArraySlice) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 507 | HandleScope scope(isolate); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 508 | Handle<Object> receiver = args.receiver(); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 509 | int len = -1; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 510 | int relative_start = 0; |
| 511 | int relative_end = 0; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 512 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 513 | if (receiver->IsJSArray()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 514 | DisallowHeapAllocation no_gc; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 515 | JSArray* array = JSArray::cast(*receiver); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 516 | if (V8_UNLIKELY(!array->HasFastElements() || |
| 517 | !IsJSArrayFastElementMovingAllowed(isolate, array) || |
| 518 | !isolate->IsArraySpeciesLookupChainIntact() || |
| 519 | // If this is a subclass of Array, then call out to JS |
| 520 | !array->HasArrayPrototype(isolate))) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 521 | AllowHeapAllocation allow_allocation; |
| 522 | return CallJsIntrinsic(isolate, isolate->array_slice(), args); |
Steve Block | 9fac840 | 2011-05-12 15:51:54 +0100 | [diff] [blame] | 523 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 524 | len = Smi::cast(array->length())->value(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 525 | } else if (receiver->IsJSObject() && |
| 526 | GetSloppyArgumentsLength(isolate, Handle<JSObject>::cast(receiver), |
| 527 | &len)) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 528 | // Array.prototype.slice.call(arguments, ...) is quite a common idiom |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 529 | // (notably more than 50% of invocations in Web apps). |
| 530 | // Treat it in C++ as well. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 531 | DCHECK(JSObject::cast(*receiver)->HasFastElements() || |
| 532 | JSObject::cast(*receiver)->HasFastArgumentsElements()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 533 | } else { |
| 534 | AllowHeapAllocation allow_allocation; |
| 535 | return CallJsIntrinsic(isolate, isolate->array_slice(), args); |
| 536 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 537 | DCHECK_LE(0, len); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 538 | int argument_count = args.length() - 1; |
| 539 | // Note carefully chosen defaults---if argument is missing, |
| 540 | // it's undefined which gets converted to 0 for relative_start |
| 541 | // and to len for relative_end. |
| 542 | relative_start = 0; |
| 543 | relative_end = len; |
| 544 | if (argument_count > 0) { |
| 545 | DisallowHeapAllocation no_gc; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 546 | if (!ClampedToInteger(isolate, args[1], &relative_start)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 547 | AllowHeapAllocation allow_allocation; |
| 548 | return CallJsIntrinsic(isolate, isolate->array_slice(), args); |
| 549 | } |
| 550 | if (argument_count > 1) { |
| 551 | Object* end_arg = args[2]; |
| 552 | // slice handles the end_arg specially |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 553 | if (end_arg->IsUndefined(isolate)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 554 | relative_end = len; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 555 | } else if (!ClampedToInteger(isolate, end_arg, &relative_end)) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 556 | AllowHeapAllocation allow_allocation; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 557 | return CallJsIntrinsic(isolate, isolate->array_slice(), args); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 558 | } |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 559 | } |
| 560 | } |
| 561 | |
| 562 | // ECMAScript 232, 3rd Edition, Section 15.4.4.10, step 6. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 563 | uint32_t actual_start = (relative_start < 0) ? Max(len + relative_start, 0) |
| 564 | : Min(relative_start, len); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 565 | |
| 566 | // ECMAScript 232, 3rd Edition, Section 15.4.4.10, step 8. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 567 | uint32_t actual_end = |
| 568 | (relative_end < 0) ? Max(len + relative_end, 0) : Min(relative_end, len); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 569 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 570 | Handle<JSObject> object = Handle<JSObject>::cast(receiver); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 571 | ElementsAccessor* accessor = object->GetElementsAccessor(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 572 | return *accessor->Slice(object, actual_start, actual_end); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 573 | } |
| 574 | |
| 575 | |
| 576 | BUILTIN(ArraySplice) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 577 | HandleScope scope(isolate); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 578 | Handle<Object> receiver = args.receiver(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 579 | if (V8_UNLIKELY( |
| 580 | !EnsureJSArrayWithWritableFastElements(isolate, receiver, &args, 3) || |
| 581 | // If this is a subclass of Array, then call out to JS. |
| 582 | !Handle<JSArray>::cast(receiver)->HasArrayPrototype(isolate) || |
| 583 | // If anything with @@species has been messed with, call out to JS. |
| 584 | !isolate->IsArraySpeciesLookupChainIntact())) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 585 | return CallJsIntrinsic(isolate, isolate->array_splice(), args); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 586 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 587 | Handle<JSArray> array = Handle<JSArray>::cast(receiver); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 588 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 589 | int argument_count = args.length() - 1; |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 590 | int relative_start = 0; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 591 | if (argument_count > 0) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 592 | DisallowHeapAllocation no_gc; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 593 | if (!ClampedToInteger(isolate, args[1], &relative_start)) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 594 | AllowHeapAllocation allow_allocation; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 595 | return CallJsIntrinsic(isolate, isolate->array_splice(), args); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 596 | } |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 597 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 598 | int len = Smi::cast(array->length())->value(); |
| 599 | // clip relative start to [0, len] |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 600 | int actual_start = (relative_start < 0) ? Max(len + relative_start, 0) |
| 601 | : Min(relative_start, len); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 602 | |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 603 | int actual_delete_count; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 604 | if (argument_count == 1) { |
| 605 | // SpiderMonkey, TraceMonkey and JSC treat the case where no delete count is |
| 606 | // given as a request to delete all the elements from the start. |
| 607 | // And it differs from the case of undefined delete count. |
| 608 | // This does not follow ECMA-262, but we do the same for compatibility. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 609 | DCHECK(len - actual_start >= 0); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 610 | actual_delete_count = len - actual_start; |
| 611 | } else { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 612 | int delete_count = 0; |
| 613 | DisallowHeapAllocation no_gc; |
| 614 | if (argument_count > 1) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 615 | if (!ClampedToInteger(isolate, args[2], &delete_count)) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 616 | AllowHeapAllocation allow_allocation; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 617 | return CallJsIntrinsic(isolate, isolate->array_splice(), args); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 618 | } |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 619 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 620 | actual_delete_count = Min(Max(delete_count, 0), len - actual_start); |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 621 | } |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 622 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 623 | int add_count = (argument_count > 1) ? (argument_count - 2) : 0; |
| 624 | int new_length = len - actual_delete_count + add_count; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 625 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 626 | if (new_length != len && JSArray::HasReadOnlyLength(array)) { |
| 627 | AllowHeapAllocation allow_allocation; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 628 | return CallJsIntrinsic(isolate, isolate->array_splice(), args); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 629 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 630 | ElementsAccessor* accessor = array->GetElementsAccessor(); |
| 631 | Handle<JSArray> result_array = accessor->Splice( |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 632 | array, actual_start, actual_delete_count, &args, add_count); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 633 | return *result_array; |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 634 | } |
| 635 | |
| 636 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 637 | // Array Concat ------------------------------------------------------------- |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 638 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 639 | namespace { |
| 640 | |
| 641 | /** |
| 642 | * A simple visitor visits every element of Array's. |
| 643 | * The backend storage can be a fixed array for fast elements case, |
| 644 | * or a dictionary for sparse array. Since Dictionary is a subtype |
| 645 | * of FixedArray, the class can be used by both fast and slow cases. |
| 646 | * The second parameter of the constructor, fast_elements, specifies |
| 647 | * whether the storage is a FixedArray or Dictionary. |
| 648 | * |
| 649 | * An index limit is used to deal with the situation that a result array |
| 650 | * length overflows 32-bit non-negative integer. |
| 651 | */ |
| 652 | class ArrayConcatVisitor { |
| 653 | public: |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 654 | ArrayConcatVisitor(Isolate* isolate, Handle<Object> storage, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 655 | bool fast_elements) |
| 656 | : isolate_(isolate), |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 657 | storage_(isolate->global_handles()->Create(*storage)), |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 658 | index_offset_(0u), |
| 659 | bit_field_(FastElementsField::encode(fast_elements) | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 660 | ExceedsLimitField::encode(false) | |
| 661 | IsFixedArrayField::encode(storage->IsFixedArray())) { |
| 662 | DCHECK(!(this->fast_elements() && !is_fixed_array())); |
| 663 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 664 | |
| 665 | ~ArrayConcatVisitor() { clear_storage(); } |
| 666 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 667 | MUST_USE_RESULT bool visit(uint32_t i, Handle<Object> elm) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 668 | uint32_t index = index_offset_ + i; |
| 669 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 670 | if (i >= JSObject::kMaxElementCount - index_offset_) { |
| 671 | set_exceeds_array_limit(true); |
| 672 | // Exception hasn't been thrown at this point. Return true to |
| 673 | // break out, and caller will throw. !visit would imply that |
| 674 | // there is already a pending exception. |
| 675 | return true; |
| 676 | } |
| 677 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 678 | if (!is_fixed_array()) { |
| 679 | LookupIterator it(isolate_, storage_, index, LookupIterator::OWN); |
| 680 | MAYBE_RETURN( |
| 681 | JSReceiver::CreateDataProperty(&it, elm, Object::THROW_ON_ERROR), |
| 682 | false); |
| 683 | return true; |
| 684 | } |
| 685 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 686 | if (fast_elements()) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 687 | if (index < static_cast<uint32_t>(storage_fixed_array()->length())) { |
| 688 | storage_fixed_array()->set(index, *elm); |
| 689 | return true; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 690 | } |
| 691 | // Our initial estimate of length was foiled, possibly by |
| 692 | // getters on the arrays increasing the length of later arrays |
| 693 | // during iteration. |
| 694 | // This shouldn't happen in anything but pathological cases. |
| 695 | SetDictionaryMode(); |
| 696 | // Fall-through to dictionary mode. |
| 697 | } |
| 698 | DCHECK(!fast_elements()); |
| 699 | Handle<SeededNumberDictionary> dict( |
| 700 | SeededNumberDictionary::cast(*storage_)); |
| 701 | // The object holding this backing store has just been allocated, so |
| 702 | // it cannot yet be used as a prototype. |
| 703 | Handle<SeededNumberDictionary> result = |
| 704 | SeededNumberDictionary::AtNumberPut(dict, index, elm, false); |
| 705 | if (!result.is_identical_to(dict)) { |
| 706 | // Dictionary needed to grow. |
| 707 | clear_storage(); |
| 708 | set_storage(*result); |
| 709 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 710 | return true; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 711 | } |
| 712 | |
| 713 | void increase_index_offset(uint32_t delta) { |
| 714 | if (JSObject::kMaxElementCount - index_offset_ < delta) { |
| 715 | index_offset_ = JSObject::kMaxElementCount; |
| 716 | } else { |
| 717 | index_offset_ += delta; |
| 718 | } |
| 719 | // If the initial length estimate was off (see special case in visit()), |
| 720 | // but the array blowing the limit didn't contain elements beyond the |
| 721 | // provided-for index range, go to dictionary mode now. |
| 722 | if (fast_elements() && |
| 723 | index_offset_ > |
| 724 | static_cast<uint32_t>(FixedArrayBase::cast(*storage_)->length())) { |
| 725 | SetDictionaryMode(); |
| 726 | } |
| 727 | } |
| 728 | |
| 729 | bool exceeds_array_limit() const { |
| 730 | return ExceedsLimitField::decode(bit_field_); |
| 731 | } |
| 732 | |
| 733 | Handle<JSArray> ToArray() { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 734 | DCHECK(is_fixed_array()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 735 | Handle<JSArray> array = isolate_->factory()->NewJSArray(0); |
| 736 | Handle<Object> length = |
| 737 | isolate_->factory()->NewNumber(static_cast<double>(index_offset_)); |
| 738 | Handle<Map> map = JSObject::GetElementsTransitionMap( |
| 739 | array, fast_elements() ? FAST_HOLEY_ELEMENTS : DICTIONARY_ELEMENTS); |
| 740 | array->set_map(*map); |
| 741 | array->set_length(*length); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 742 | array->set_elements(*storage_fixed_array()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 743 | return array; |
| 744 | } |
| 745 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 746 | // Storage is either a FixedArray (if is_fixed_array()) or a JSReciever |
| 747 | // (otherwise) |
| 748 | Handle<FixedArray> storage_fixed_array() { |
| 749 | DCHECK(is_fixed_array()); |
| 750 | return Handle<FixedArray>::cast(storage_); |
| 751 | } |
| 752 | Handle<JSReceiver> storage_jsreceiver() { |
| 753 | DCHECK(!is_fixed_array()); |
| 754 | return Handle<JSReceiver>::cast(storage_); |
| 755 | } |
| 756 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 757 | private: |
| 758 | // Convert storage to dictionary mode. |
| 759 | void SetDictionaryMode() { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 760 | DCHECK(fast_elements() && is_fixed_array()); |
| 761 | Handle<FixedArray> current_storage = storage_fixed_array(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 762 | Handle<SeededNumberDictionary> slow_storage( |
| 763 | SeededNumberDictionary::New(isolate_, current_storage->length())); |
| 764 | uint32_t current_length = static_cast<uint32_t>(current_storage->length()); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 765 | FOR_WITH_HANDLE_SCOPE( |
| 766 | isolate_, uint32_t, i = 0, i, i < current_length, i++, { |
| 767 | Handle<Object> element(current_storage->get(i), isolate_); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 768 | if (!element->IsTheHole(isolate_)) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 769 | // The object holding this backing store has just been allocated, so |
| 770 | // it cannot yet be used as a prototype. |
| 771 | Handle<SeededNumberDictionary> new_storage = |
| 772 | SeededNumberDictionary::AtNumberPut(slow_storage, i, element, |
| 773 | false); |
| 774 | if (!new_storage.is_identical_to(slow_storage)) { |
| 775 | slow_storage = loop_scope.CloseAndEscape(new_storage); |
| 776 | } |
| 777 | } |
| 778 | }); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 779 | clear_storage(); |
| 780 | set_storage(*slow_storage); |
| 781 | set_fast_elements(false); |
| 782 | } |
| 783 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 784 | inline void clear_storage() { GlobalHandles::Destroy(storage_.location()); } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 785 | |
| 786 | inline void set_storage(FixedArray* storage) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 787 | DCHECK(is_fixed_array()); |
| 788 | storage_ = isolate_->global_handles()->Create(storage); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 789 | } |
| 790 | |
| 791 | class FastElementsField : public BitField<bool, 0, 1> {}; |
| 792 | class ExceedsLimitField : public BitField<bool, 1, 1> {}; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 793 | class IsFixedArrayField : public BitField<bool, 2, 1> {}; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 794 | |
| 795 | bool fast_elements() const { return FastElementsField::decode(bit_field_); } |
| 796 | void set_fast_elements(bool fast) { |
| 797 | bit_field_ = FastElementsField::update(bit_field_, fast); |
| 798 | } |
| 799 | void set_exceeds_array_limit(bool exceeds) { |
| 800 | bit_field_ = ExceedsLimitField::update(bit_field_, exceeds); |
| 801 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 802 | bool is_fixed_array() const { return IsFixedArrayField::decode(bit_field_); } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 803 | |
| 804 | Isolate* isolate_; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 805 | Handle<Object> storage_; // Always a global handle. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 806 | // Index after last seen index. Always less than or equal to |
| 807 | // JSObject::kMaxElementCount. |
| 808 | uint32_t index_offset_; |
| 809 | uint32_t bit_field_; |
| 810 | }; |
| 811 | |
| 812 | |
| 813 | uint32_t EstimateElementCount(Handle<JSArray> array) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 814 | DisallowHeapAllocation no_gc; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 815 | uint32_t length = static_cast<uint32_t>(array->length()->Number()); |
| 816 | int element_count = 0; |
| 817 | switch (array->GetElementsKind()) { |
| 818 | case FAST_SMI_ELEMENTS: |
| 819 | case FAST_HOLEY_SMI_ELEMENTS: |
| 820 | case FAST_ELEMENTS: |
| 821 | case FAST_HOLEY_ELEMENTS: { |
| 822 | // Fast elements can't have lengths that are not representable by |
| 823 | // a 32-bit signed integer. |
| 824 | DCHECK(static_cast<int32_t>(FixedArray::kMaxLength) >= 0); |
| 825 | int fast_length = static_cast<int>(length); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 826 | Isolate* isolate = array->GetIsolate(); |
| 827 | FixedArray* elements = FixedArray::cast(array->elements()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 828 | for (int i = 0; i < fast_length; i++) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 829 | if (!elements->get(i)->IsTheHole(isolate)) element_count++; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 830 | } |
| 831 | break; |
| 832 | } |
| 833 | case FAST_DOUBLE_ELEMENTS: |
| 834 | case FAST_HOLEY_DOUBLE_ELEMENTS: { |
| 835 | // Fast elements can't have lengths that are not representable by |
| 836 | // a 32-bit signed integer. |
| 837 | DCHECK(static_cast<int32_t>(FixedDoubleArray::kMaxLength) >= 0); |
| 838 | int fast_length = static_cast<int>(length); |
| 839 | if (array->elements()->IsFixedArray()) { |
| 840 | DCHECK(FixedArray::cast(array->elements())->length() == 0); |
| 841 | break; |
| 842 | } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 843 | FixedDoubleArray* elements = FixedDoubleArray::cast(array->elements()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 844 | for (int i = 0; i < fast_length; i++) { |
| 845 | if (!elements->is_the_hole(i)) element_count++; |
| 846 | } |
| 847 | break; |
| 848 | } |
| 849 | case DICTIONARY_ELEMENTS: { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 850 | SeededNumberDictionary* dictionary = |
| 851 | SeededNumberDictionary::cast(array->elements()); |
| 852 | Isolate* isolate = dictionary->GetIsolate(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 853 | int capacity = dictionary->Capacity(); |
| 854 | for (int i = 0; i < capacity; i++) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 855 | Object* key = dictionary->KeyAt(i); |
| 856 | if (dictionary->IsKey(isolate, key)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 857 | element_count++; |
| 858 | } |
| 859 | } |
| 860 | break; |
| 861 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 862 | #define TYPED_ARRAY_CASE(Type, type, TYPE, ctype, size) case TYPE##_ELEMENTS: |
| 863 | |
| 864 | TYPED_ARRAYS(TYPED_ARRAY_CASE) |
| 865 | #undef TYPED_ARRAY_CASE |
| 866 | // External arrays are always dense. |
| 867 | return length; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 868 | case NO_ELEMENTS: |
| 869 | return 0; |
| 870 | case FAST_SLOPPY_ARGUMENTS_ELEMENTS: |
| 871 | case SLOW_SLOPPY_ARGUMENTS_ELEMENTS: |
| 872 | case FAST_STRING_WRAPPER_ELEMENTS: |
| 873 | case SLOW_STRING_WRAPPER_ELEMENTS: |
| 874 | UNREACHABLE(); |
| 875 | return 0; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 876 | } |
| 877 | // As an estimate, we assume that the prototype doesn't contain any |
| 878 | // inherited elements. |
| 879 | return element_count; |
| 880 | } |
| 881 | |
| 882 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 883 | // Used for sorting indices in a List<uint32_t>. |
| 884 | int compareUInt32(const uint32_t* ap, const uint32_t* bp) { |
| 885 | uint32_t a = *ap; |
| 886 | uint32_t b = *bp; |
| 887 | return (a == b) ? 0 : (a < b) ? -1 : 1; |
| 888 | } |
| 889 | |
| 890 | |
| 891 | void CollectElementIndices(Handle<JSObject> object, uint32_t range, |
| 892 | List<uint32_t>* indices) { |
| 893 | Isolate* isolate = object->GetIsolate(); |
| 894 | ElementsKind kind = object->GetElementsKind(); |
| 895 | switch (kind) { |
| 896 | case FAST_SMI_ELEMENTS: |
| 897 | case FAST_ELEMENTS: |
| 898 | case FAST_HOLEY_SMI_ELEMENTS: |
| 899 | case FAST_HOLEY_ELEMENTS: { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 900 | DisallowHeapAllocation no_gc; |
| 901 | FixedArray* elements = FixedArray::cast(object->elements()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 902 | uint32_t length = static_cast<uint32_t>(elements->length()); |
| 903 | if (range < length) length = range; |
| 904 | for (uint32_t i = 0; i < length; i++) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 905 | if (!elements->get(i)->IsTheHole(isolate)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 906 | indices->Add(i); |
| 907 | } |
| 908 | } |
| 909 | break; |
| 910 | } |
| 911 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
| 912 | case FAST_DOUBLE_ELEMENTS: { |
| 913 | if (object->elements()->IsFixedArray()) { |
| 914 | DCHECK(object->elements()->length() == 0); |
| 915 | break; |
| 916 | } |
| 917 | Handle<FixedDoubleArray> elements( |
| 918 | FixedDoubleArray::cast(object->elements())); |
| 919 | uint32_t length = static_cast<uint32_t>(elements->length()); |
| 920 | if (range < length) length = range; |
| 921 | for (uint32_t i = 0; i < length; i++) { |
| 922 | if (!elements->is_the_hole(i)) { |
| 923 | indices->Add(i); |
| 924 | } |
| 925 | } |
| 926 | break; |
| 927 | } |
| 928 | case DICTIONARY_ELEMENTS: { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 929 | DisallowHeapAllocation no_gc; |
| 930 | SeededNumberDictionary* dict = |
| 931 | SeededNumberDictionary::cast(object->elements()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 932 | uint32_t capacity = dict->Capacity(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 933 | FOR_WITH_HANDLE_SCOPE(isolate, uint32_t, j = 0, j, j < capacity, j++, { |
| 934 | Object* k = dict->KeyAt(j); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 935 | if (!dict->IsKey(isolate, k)) continue; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 936 | DCHECK(k->IsNumber()); |
| 937 | uint32_t index = static_cast<uint32_t>(k->Number()); |
| 938 | if (index < range) { |
| 939 | indices->Add(index); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 940 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 941 | }); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 942 | break; |
| 943 | } |
| 944 | #define TYPED_ARRAY_CASE(Type, type, TYPE, ctype, size) case TYPE##_ELEMENTS: |
| 945 | |
| 946 | TYPED_ARRAYS(TYPED_ARRAY_CASE) |
| 947 | #undef TYPED_ARRAY_CASE |
| 948 | { |
| 949 | uint32_t length = static_cast<uint32_t>( |
| 950 | FixedArrayBase::cast(object->elements())->length()); |
| 951 | if (range <= length) { |
| 952 | length = range; |
| 953 | // We will add all indices, so we might as well clear it first |
| 954 | // and avoid duplicates. |
| 955 | indices->Clear(); |
| 956 | } |
| 957 | for (uint32_t i = 0; i < length; i++) { |
| 958 | indices->Add(i); |
| 959 | } |
| 960 | if (length == range) return; // All indices accounted for already. |
| 961 | break; |
| 962 | } |
| 963 | case FAST_SLOPPY_ARGUMENTS_ELEMENTS: |
| 964 | case SLOW_SLOPPY_ARGUMENTS_ELEMENTS: { |
| 965 | ElementsAccessor* accessor = object->GetElementsAccessor(); |
| 966 | for (uint32_t i = 0; i < range; i++) { |
| 967 | if (accessor->HasElement(object, i)) { |
| 968 | indices->Add(i); |
| 969 | } |
| 970 | } |
| 971 | break; |
| 972 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 973 | case FAST_STRING_WRAPPER_ELEMENTS: |
| 974 | case SLOW_STRING_WRAPPER_ELEMENTS: { |
| 975 | DCHECK(object->IsJSValue()); |
| 976 | Handle<JSValue> js_value = Handle<JSValue>::cast(object); |
| 977 | DCHECK(js_value->value()->IsString()); |
| 978 | Handle<String> string(String::cast(js_value->value()), isolate); |
| 979 | uint32_t length = static_cast<uint32_t>(string->length()); |
| 980 | uint32_t i = 0; |
| 981 | uint32_t limit = Min(length, range); |
| 982 | for (; i < limit; i++) { |
| 983 | indices->Add(i); |
| 984 | } |
| 985 | ElementsAccessor* accessor = object->GetElementsAccessor(); |
| 986 | for (; i < range; i++) { |
| 987 | if (accessor->HasElement(object, i)) { |
| 988 | indices->Add(i); |
| 989 | } |
| 990 | } |
| 991 | break; |
| 992 | } |
| 993 | case NO_ELEMENTS: |
| 994 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 995 | } |
| 996 | |
| 997 | PrototypeIterator iter(isolate, object); |
| 998 | if (!iter.IsAtEnd()) { |
| 999 | // The prototype will usually have no inherited element indices, |
| 1000 | // but we have to check. |
| 1001 | CollectElementIndices(PrototypeIterator::GetCurrent<JSObject>(iter), range, |
| 1002 | indices); |
| 1003 | } |
| 1004 | } |
| 1005 | |
| 1006 | |
| 1007 | bool IterateElementsSlow(Isolate* isolate, Handle<JSReceiver> receiver, |
| 1008 | uint32_t length, ArrayConcatVisitor* visitor) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1009 | FOR_WITH_HANDLE_SCOPE(isolate, uint32_t, i = 0, i, i < length, ++i, { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1010 | Maybe<bool> maybe = JSReceiver::HasElement(receiver, i); |
| 1011 | if (!maybe.IsJust()) return false; |
| 1012 | if (maybe.FromJust()) { |
| 1013 | Handle<Object> element_value; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1014 | ASSIGN_RETURN_ON_EXCEPTION_VALUE( |
| 1015 | isolate, element_value, JSReceiver::GetElement(isolate, receiver, i), |
| 1016 | false); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1017 | if (!visitor->visit(i, element_value)) return false; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1018 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1019 | }); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1020 | visitor->increase_index_offset(length); |
| 1021 | return true; |
| 1022 | } |
| 1023 | |
| 1024 | |
| 1025 | /** |
| 1026 | * A helper function that visits "array" elements of a JSReceiver in numerical |
| 1027 | * order. |
| 1028 | * |
| 1029 | * The visitor argument called for each existing element in the array |
| 1030 | * with the element index and the element's value. |
| 1031 | * Afterwards it increments the base-index of the visitor by the array |
| 1032 | * length. |
| 1033 | * Returns false if any access threw an exception, otherwise true. |
| 1034 | */ |
| 1035 | bool IterateElements(Isolate* isolate, Handle<JSReceiver> receiver, |
| 1036 | ArrayConcatVisitor* visitor) { |
| 1037 | uint32_t length = 0; |
| 1038 | |
| 1039 | if (receiver->IsJSArray()) { |
| 1040 | Handle<JSArray> array = Handle<JSArray>::cast(receiver); |
| 1041 | length = static_cast<uint32_t>(array->length()->Number()); |
| 1042 | } else { |
| 1043 | Handle<Object> val; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1044 | ASSIGN_RETURN_ON_EXCEPTION_VALUE( |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1045 | isolate, val, Object::GetLengthFromArrayLike(isolate, receiver), false); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1046 | // TODO(caitp): Support larger element indexes (up to 2^53-1). |
| 1047 | if (!val->ToUint32(&length)) { |
| 1048 | length = 0; |
| 1049 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1050 | // TODO(cbruni): handle other element kind as well |
| 1051 | return IterateElementsSlow(isolate, receiver, length, visitor); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1052 | } |
| 1053 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1054 | if (!HasOnlySimpleElements(isolate, *receiver)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1055 | return IterateElementsSlow(isolate, receiver, length, visitor); |
| 1056 | } |
| 1057 | Handle<JSObject> array = Handle<JSObject>::cast(receiver); |
| 1058 | |
| 1059 | switch (array->GetElementsKind()) { |
| 1060 | case FAST_SMI_ELEMENTS: |
| 1061 | case FAST_ELEMENTS: |
| 1062 | case FAST_HOLEY_SMI_ELEMENTS: |
| 1063 | case FAST_HOLEY_ELEMENTS: { |
| 1064 | // Run through the elements FixedArray and use HasElement and GetElement |
| 1065 | // to check the prototype for missing elements. |
| 1066 | Handle<FixedArray> elements(FixedArray::cast(array->elements())); |
| 1067 | int fast_length = static_cast<int>(length); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1068 | DCHECK(fast_length <= elements->length()); |
| 1069 | FOR_WITH_HANDLE_SCOPE(isolate, int, j = 0, j, j < fast_length, j++, { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1070 | Handle<Object> element_value(elements->get(j), isolate); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1071 | if (!element_value->IsTheHole(isolate)) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1072 | if (!visitor->visit(j, element_value)) return false; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1073 | } else { |
| 1074 | Maybe<bool> maybe = JSReceiver::HasElement(array, j); |
| 1075 | if (!maybe.IsJust()) return false; |
| 1076 | if (maybe.FromJust()) { |
| 1077 | // Call GetElement on array, not its prototype, or getters won't |
| 1078 | // have the correct receiver. |
| 1079 | ASSIGN_RETURN_ON_EXCEPTION_VALUE( |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1080 | isolate, element_value, |
| 1081 | JSReceiver::GetElement(isolate, array, j), false); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1082 | if (!visitor->visit(j, element_value)) return false; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1083 | } |
| 1084 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1085 | }); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1086 | break; |
| 1087 | } |
| 1088 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
| 1089 | case FAST_DOUBLE_ELEMENTS: { |
| 1090 | // Empty array is FixedArray but not FixedDoubleArray. |
| 1091 | if (length == 0) break; |
| 1092 | // Run through the elements FixedArray and use HasElement and GetElement |
| 1093 | // to check the prototype for missing elements. |
| 1094 | if (array->elements()->IsFixedArray()) { |
| 1095 | DCHECK(array->elements()->length() == 0); |
| 1096 | break; |
| 1097 | } |
| 1098 | Handle<FixedDoubleArray> elements( |
| 1099 | FixedDoubleArray::cast(array->elements())); |
| 1100 | int fast_length = static_cast<int>(length); |
| 1101 | DCHECK(fast_length <= elements->length()); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1102 | FOR_WITH_HANDLE_SCOPE(isolate, int, j = 0, j, j < fast_length, j++, { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1103 | if (!elements->is_the_hole(j)) { |
| 1104 | double double_value = elements->get_scalar(j); |
| 1105 | Handle<Object> element_value = |
| 1106 | isolate->factory()->NewNumber(double_value); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1107 | if (!visitor->visit(j, element_value)) return false; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1108 | } else { |
| 1109 | Maybe<bool> maybe = JSReceiver::HasElement(array, j); |
| 1110 | if (!maybe.IsJust()) return false; |
| 1111 | if (maybe.FromJust()) { |
| 1112 | // Call GetElement on array, not its prototype, or getters won't |
| 1113 | // have the correct receiver. |
| 1114 | Handle<Object> element_value; |
| 1115 | ASSIGN_RETURN_ON_EXCEPTION_VALUE( |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1116 | isolate, element_value, |
| 1117 | JSReceiver::GetElement(isolate, array, j), false); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1118 | if (!visitor->visit(j, element_value)) return false; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1119 | } |
| 1120 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1121 | }); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1122 | break; |
| 1123 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1124 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1125 | case DICTIONARY_ELEMENTS: { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1126 | Handle<SeededNumberDictionary> dict(array->element_dictionary()); |
| 1127 | List<uint32_t> indices(dict->Capacity() / 2); |
| 1128 | // Collect all indices in the object and the prototypes less |
| 1129 | // than length. This might introduce duplicates in the indices list. |
| 1130 | CollectElementIndices(array, length, &indices); |
| 1131 | indices.Sort(&compareUInt32); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1132 | int n = indices.length(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1133 | FOR_WITH_HANDLE_SCOPE(isolate, int, j = 0, j, j < n, (void)0, { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1134 | uint32_t index = indices[j]; |
| 1135 | Handle<Object> element; |
| 1136 | ASSIGN_RETURN_ON_EXCEPTION_VALUE( |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1137 | isolate, element, JSReceiver::GetElement(isolate, array, index), |
| 1138 | false); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1139 | if (!visitor->visit(index, element)) return false; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1140 | // Skip to next different index (i.e., omit duplicates). |
| 1141 | do { |
| 1142 | j++; |
| 1143 | } while (j < n && indices[j] == index); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1144 | }); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1145 | break; |
| 1146 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1147 | case FAST_SLOPPY_ARGUMENTS_ELEMENTS: |
| 1148 | case SLOW_SLOPPY_ARGUMENTS_ELEMENTS: { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1149 | FOR_WITH_HANDLE_SCOPE( |
| 1150 | isolate, uint32_t, index = 0, index, index < length, index++, { |
| 1151 | Handle<Object> element; |
| 1152 | ASSIGN_RETURN_ON_EXCEPTION_VALUE( |
| 1153 | isolate, element, JSReceiver::GetElement(isolate, array, index), |
| 1154 | false); |
| 1155 | if (!visitor->visit(index, element)) return false; |
| 1156 | }); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1157 | break; |
| 1158 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1159 | case NO_ELEMENTS: |
| 1160 | break; |
| 1161 | #define TYPED_ARRAY_CASE(Type, type, TYPE, ctype, size) case TYPE##_ELEMENTS: |
| 1162 | TYPED_ARRAYS(TYPED_ARRAY_CASE) |
| 1163 | #undef TYPED_ARRAY_CASE |
| 1164 | return IterateElementsSlow(isolate, receiver, length, visitor); |
| 1165 | case FAST_STRING_WRAPPER_ELEMENTS: |
| 1166 | case SLOW_STRING_WRAPPER_ELEMENTS: |
| 1167 | // |array| is guaranteed to be an array or typed array. |
| 1168 | UNREACHABLE(); |
| 1169 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1170 | } |
| 1171 | visitor->increase_index_offset(length); |
| 1172 | return true; |
| 1173 | } |
| 1174 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1175 | static Maybe<bool> IsConcatSpreadable(Isolate* isolate, Handle<Object> obj) { |
| 1176 | HandleScope handle_scope(isolate); |
| 1177 | if (!obj->IsJSReceiver()) return Just(false); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1178 | if (!isolate->IsIsConcatSpreadableLookupChainIntact()) { |
| 1179 | // Slow path if @@isConcatSpreadable has been used. |
| 1180 | Handle<Symbol> key(isolate->factory()->is_concat_spreadable_symbol()); |
| 1181 | Handle<Object> value; |
| 1182 | MaybeHandle<Object> maybeValue = |
| 1183 | i::Runtime::GetObjectProperty(isolate, obj, key); |
| 1184 | if (!maybeValue.ToHandle(&value)) return Nothing<bool>(); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1185 | if (!value->IsUndefined(isolate)) return Just(value->BooleanValue()); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1186 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1187 | return Object::IsArray(obj); |
| 1188 | } |
| 1189 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1190 | Object* Slow_ArrayConcat(BuiltinArguments* args, Handle<Object> species, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1191 | Isolate* isolate) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1192 | int argument_count = args->length(); |
| 1193 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1194 | bool is_array_species = *species == isolate->context()->array_function(); |
| 1195 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1196 | // Pass 1: estimate the length and number of elements of the result. |
| 1197 | // The actual length can be larger if any of the arguments have getters |
| 1198 | // that mutate other arguments (but will otherwise be precise). |
| 1199 | // The number of elements is precise if there are no inherited elements. |
| 1200 | |
| 1201 | ElementsKind kind = FAST_SMI_ELEMENTS; |
| 1202 | |
| 1203 | uint32_t estimate_result_length = 0; |
| 1204 | uint32_t estimate_nof_elements = 0; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1205 | FOR_WITH_HANDLE_SCOPE(isolate, int, i = 0, i, i < argument_count, i++, { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1206 | Handle<Object> obj((*args)[i], isolate); |
| 1207 | uint32_t length_estimate; |
| 1208 | uint32_t element_estimate; |
| 1209 | if (obj->IsJSArray()) { |
| 1210 | Handle<JSArray> array(Handle<JSArray>::cast(obj)); |
| 1211 | length_estimate = static_cast<uint32_t>(array->length()->Number()); |
| 1212 | if (length_estimate != 0) { |
| 1213 | ElementsKind array_kind = |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1214 | GetPackedElementsKind(array->GetElementsKind()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1215 | kind = GetMoreGeneralElementsKind(kind, array_kind); |
| 1216 | } |
| 1217 | element_estimate = EstimateElementCount(array); |
| 1218 | } else { |
| 1219 | if (obj->IsHeapObject()) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1220 | kind = GetMoreGeneralElementsKind( |
| 1221 | kind, obj->IsNumber() ? FAST_DOUBLE_ELEMENTS : FAST_ELEMENTS); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1222 | } |
| 1223 | length_estimate = 1; |
| 1224 | element_estimate = 1; |
| 1225 | } |
| 1226 | // Avoid overflows by capping at kMaxElementCount. |
| 1227 | if (JSObject::kMaxElementCount - estimate_result_length < length_estimate) { |
| 1228 | estimate_result_length = JSObject::kMaxElementCount; |
| 1229 | } else { |
| 1230 | estimate_result_length += length_estimate; |
| 1231 | } |
| 1232 | if (JSObject::kMaxElementCount - estimate_nof_elements < element_estimate) { |
| 1233 | estimate_nof_elements = JSObject::kMaxElementCount; |
| 1234 | } else { |
| 1235 | estimate_nof_elements += element_estimate; |
| 1236 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1237 | }); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1238 | |
| 1239 | // If estimated number of elements is more than half of length, a |
| 1240 | // fixed array (fast case) is more time and space-efficient than a |
| 1241 | // dictionary. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1242 | bool fast_case = |
| 1243 | is_array_species && (estimate_nof_elements * 2) >= estimate_result_length; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1244 | |
| 1245 | if (fast_case && kind == FAST_DOUBLE_ELEMENTS) { |
| 1246 | Handle<FixedArrayBase> storage = |
| 1247 | isolate->factory()->NewFixedDoubleArray(estimate_result_length); |
| 1248 | int j = 0; |
| 1249 | bool failure = false; |
| 1250 | if (estimate_result_length > 0) { |
| 1251 | Handle<FixedDoubleArray> double_storage = |
| 1252 | Handle<FixedDoubleArray>::cast(storage); |
| 1253 | for (int i = 0; i < argument_count; i++) { |
| 1254 | Handle<Object> obj((*args)[i], isolate); |
| 1255 | if (obj->IsSmi()) { |
| 1256 | double_storage->set(j, Smi::cast(*obj)->value()); |
| 1257 | j++; |
| 1258 | } else if (obj->IsNumber()) { |
| 1259 | double_storage->set(j, obj->Number()); |
| 1260 | j++; |
| 1261 | } else { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1262 | DisallowHeapAllocation no_gc; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1263 | JSArray* array = JSArray::cast(*obj); |
| 1264 | uint32_t length = static_cast<uint32_t>(array->length()->Number()); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1265 | switch (array->GetElementsKind()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1266 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
| 1267 | case FAST_DOUBLE_ELEMENTS: { |
| 1268 | // Empty array is FixedArray but not FixedDoubleArray. |
| 1269 | if (length == 0) break; |
| 1270 | FixedDoubleArray* elements = |
| 1271 | FixedDoubleArray::cast(array->elements()); |
| 1272 | for (uint32_t i = 0; i < length; i++) { |
| 1273 | if (elements->is_the_hole(i)) { |
| 1274 | // TODO(jkummerow/verwaest): We could be a bit more clever |
| 1275 | // here: Check if there are no elements/getters on the |
| 1276 | // prototype chain, and if so, allow creation of a holey |
| 1277 | // result array. |
| 1278 | // Same thing below (holey smi case). |
| 1279 | failure = true; |
| 1280 | break; |
| 1281 | } |
| 1282 | double double_value = elements->get_scalar(i); |
| 1283 | double_storage->set(j, double_value); |
| 1284 | j++; |
| 1285 | } |
| 1286 | break; |
| 1287 | } |
| 1288 | case FAST_HOLEY_SMI_ELEMENTS: |
| 1289 | case FAST_SMI_ELEMENTS: { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1290 | Object* the_hole = isolate->heap()->the_hole_value(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1291 | FixedArray* elements(FixedArray::cast(array->elements())); |
| 1292 | for (uint32_t i = 0; i < length; i++) { |
| 1293 | Object* element = elements->get(i); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1294 | if (element == the_hole) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1295 | failure = true; |
| 1296 | break; |
| 1297 | } |
| 1298 | int32_t int_value = Smi::cast(element)->value(); |
| 1299 | double_storage->set(j, int_value); |
| 1300 | j++; |
| 1301 | } |
| 1302 | break; |
| 1303 | } |
| 1304 | case FAST_HOLEY_ELEMENTS: |
| 1305 | case FAST_ELEMENTS: |
| 1306 | case DICTIONARY_ELEMENTS: |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1307 | case NO_ELEMENTS: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1308 | DCHECK_EQ(0u, length); |
| 1309 | break; |
| 1310 | default: |
| 1311 | UNREACHABLE(); |
| 1312 | } |
| 1313 | } |
| 1314 | if (failure) break; |
| 1315 | } |
| 1316 | } |
| 1317 | if (!failure) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1318 | return *isolate->factory()->NewJSArrayWithElements(storage, kind, j); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1319 | } |
| 1320 | // In case of failure, fall through. |
| 1321 | } |
| 1322 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1323 | Handle<Object> storage; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1324 | if (fast_case) { |
| 1325 | // The backing storage array must have non-existing elements to preserve |
| 1326 | // holes across concat operations. |
| 1327 | storage = |
| 1328 | isolate->factory()->NewFixedArrayWithHoles(estimate_result_length); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1329 | } else if (is_array_species) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1330 | // TODO(126): move 25% pre-allocation logic into Dictionary::Allocate |
| 1331 | uint32_t at_least_space_for = |
| 1332 | estimate_nof_elements + (estimate_nof_elements >> 2); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1333 | storage = SeededNumberDictionary::New(isolate, at_least_space_for); |
| 1334 | } else { |
| 1335 | DCHECK(species->IsConstructor()); |
| 1336 | Handle<Object> length(Smi::FromInt(0), isolate); |
| 1337 | Handle<Object> storage_object; |
| 1338 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 1339 | isolate, storage_object, |
| 1340 | Execution::New(isolate, species, species, 1, &length)); |
| 1341 | storage = storage_object; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1342 | } |
| 1343 | |
| 1344 | ArrayConcatVisitor visitor(isolate, storage, fast_case); |
| 1345 | |
| 1346 | for (int i = 0; i < argument_count; i++) { |
| 1347 | Handle<Object> obj((*args)[i], isolate); |
| 1348 | Maybe<bool> spreadable = IsConcatSpreadable(isolate, obj); |
| 1349 | MAYBE_RETURN(spreadable, isolate->heap()->exception()); |
| 1350 | if (spreadable.FromJust()) { |
| 1351 | Handle<JSReceiver> object = Handle<JSReceiver>::cast(obj); |
| 1352 | if (!IterateElements(isolate, object, &visitor)) { |
| 1353 | return isolate->heap()->exception(); |
| 1354 | } |
| 1355 | } else { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1356 | if (!visitor.visit(0, obj)) return isolate->heap()->exception(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1357 | visitor.increase_index_offset(1); |
| 1358 | } |
| 1359 | } |
| 1360 | |
| 1361 | if (visitor.exceeds_array_limit()) { |
| 1362 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 1363 | isolate, NewRangeError(MessageTemplate::kInvalidArrayLength)); |
| 1364 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1365 | |
| 1366 | if (is_array_species) { |
| 1367 | return *visitor.ToArray(); |
| 1368 | } else { |
| 1369 | return *visitor.storage_jsreceiver(); |
| 1370 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1371 | } |
| 1372 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1373 | bool IsSimpleArray(Isolate* isolate, Handle<JSArray> obj) { |
| 1374 | DisallowHeapAllocation no_gc; |
| 1375 | Map* map = obj->map(); |
| 1376 | // If there is only the 'length' property we are fine. |
| 1377 | if (map->prototype() == |
| 1378 | isolate->native_context()->initial_array_prototype() && |
| 1379 | map->NumberOfOwnDescriptors() == 1) { |
| 1380 | return true; |
| 1381 | } |
| 1382 | // TODO(cbruni): slower lookup for array subclasses and support slow |
| 1383 | // @@IsConcatSpreadable lookup. |
| 1384 | return false; |
| 1385 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1386 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1387 | MaybeHandle<JSArray> Fast_ArrayConcat(Isolate* isolate, |
| 1388 | BuiltinArguments* args) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1389 | if (!isolate->IsIsConcatSpreadableLookupChainIntact()) { |
| 1390 | return MaybeHandle<JSArray>(); |
| 1391 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1392 | // We shouldn't overflow when adding another len. |
| 1393 | const int kHalfOfMaxInt = 1 << (kBitsPerInt - 2); |
| 1394 | STATIC_ASSERT(FixedArray::kMaxLength < kHalfOfMaxInt); |
| 1395 | STATIC_ASSERT(FixedDoubleArray::kMaxLength < kHalfOfMaxInt); |
| 1396 | USE(kHalfOfMaxInt); |
| 1397 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1398 | int n_arguments = args->length(); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 1399 | int result_len = 0; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1400 | { |
| 1401 | DisallowHeapAllocation no_gc; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1402 | // Iterate through all the arguments performing checks |
| 1403 | // and calculating total length. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1404 | for (int i = 0; i < n_arguments; i++) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1405 | Object* arg = (*args)[i]; |
| 1406 | if (!arg->IsJSArray()) return MaybeHandle<JSArray>(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1407 | if (!HasOnlySimpleReceiverElements(isolate, JSObject::cast(arg))) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1408 | return MaybeHandle<JSArray>(); |
| 1409 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1410 | // TODO(cbruni): support fast concatenation of DICTIONARY_ELEMENTS. |
| 1411 | if (!JSObject::cast(arg)->HasFastElements()) { |
| 1412 | return MaybeHandle<JSArray>(); |
| 1413 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1414 | Handle<JSArray> array(JSArray::cast(arg), isolate); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1415 | if (!IsSimpleArray(isolate, array)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1416 | return MaybeHandle<JSArray>(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1417 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1418 | // The Array length is guaranted to be <= kHalfOfMaxInt thus we won't |
| 1419 | // overflow. |
| 1420 | result_len += Smi::cast(array->length())->value(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1421 | DCHECK(result_len >= 0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1422 | // Throw an Error if we overflow the FixedArray limits |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1423 | if (FixedDoubleArray::kMaxLength < result_len || |
| 1424 | FixedArray::kMaxLength < result_len) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1425 | AllowHeapAllocation gc; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1426 | THROW_NEW_ERROR(isolate, |
| 1427 | NewRangeError(MessageTemplate::kInvalidArrayLength), |
| 1428 | JSArray); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1429 | } |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 1430 | } |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 1431 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1432 | return ElementsAccessor::Concat(isolate, args, n_arguments, result_len); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1433 | } |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 1434 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1435 | } // namespace |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 1436 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1437 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1438 | // ES6 22.1.3.1 Array.prototype.concat |
| 1439 | BUILTIN(ArrayConcat) { |
| 1440 | HandleScope scope(isolate); |
| 1441 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1442 | Handle<Object> receiver = args.receiver(); |
| 1443 | // TODO(bmeurer): Do we really care about the exact exception message here? |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1444 | if (receiver->IsNull(isolate) || receiver->IsUndefined(isolate)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1445 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 1446 | isolate, NewTypeError(MessageTemplate::kCalledOnNullOrUndefined, |
| 1447 | isolate->factory()->NewStringFromAsciiChecked( |
| 1448 | "Array.prototype.concat"))); |
| 1449 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1450 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 1451 | isolate, receiver, Object::ToObject(isolate, args.receiver())); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1452 | args[0] = *receiver; |
| 1453 | |
| 1454 | Handle<JSArray> result_array; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1455 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1456 | // Avoid a real species read to avoid extra lookups to the array constructor |
| 1457 | if (V8_LIKELY(receiver->IsJSArray() && |
| 1458 | Handle<JSArray>::cast(receiver)->HasArrayPrototype(isolate) && |
| 1459 | isolate->IsArraySpeciesLookupChainIntact())) { |
| 1460 | if (Fast_ArrayConcat(isolate, &args).ToHandle(&result_array)) { |
| 1461 | return *result_array; |
| 1462 | } |
| 1463 | if (isolate->has_pending_exception()) return isolate->heap()->exception(); |
| 1464 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1465 | // Reading @@species happens before anything else with a side effect, so |
| 1466 | // we can do it here to determine whether to take the fast path. |
| 1467 | Handle<Object> species; |
| 1468 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 1469 | isolate, species, Object::ArraySpeciesConstructor(isolate, receiver)); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1470 | if (*species == *isolate->array_function()) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1471 | if (Fast_ArrayConcat(isolate, &args).ToHandle(&result_array)) { |
| 1472 | return *result_array; |
| 1473 | } |
| 1474 | if (isolate->has_pending_exception()) return isolate->heap()->exception(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1475 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1476 | return Slow_ArrayConcat(&args, species, isolate); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1477 | } |
| 1478 | |
| 1479 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1480 | namespace { |
| 1481 | |
| 1482 | MUST_USE_RESULT Maybe<bool> FastAssign(Handle<JSReceiver> to, |
| 1483 | Handle<Object> next_source) { |
| 1484 | // Non-empty strings are the only non-JSReceivers that need to be handled |
| 1485 | // explicitly by Object.assign. |
| 1486 | if (!next_source->IsJSReceiver()) { |
| 1487 | return Just(!next_source->IsString() || |
| 1488 | String::cast(*next_source)->length() == 0); |
| 1489 | } |
| 1490 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1491 | // If the target is deprecated, the object will be updated on first store. If |
| 1492 | // the source for that store equals the target, this will invalidate the |
| 1493 | // cached representation of the source. Preventively upgrade the target. |
| 1494 | // Do this on each iteration since any property load could cause deprecation. |
| 1495 | if (to->map()->is_deprecated()) { |
| 1496 | JSObject::MigrateInstance(Handle<JSObject>::cast(to)); |
| 1497 | } |
| 1498 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1499 | Isolate* isolate = to->GetIsolate(); |
| 1500 | Handle<Map> map(JSReceiver::cast(*next_source)->map(), isolate); |
| 1501 | |
| 1502 | if (!map->IsJSObjectMap()) return Just(false); |
| 1503 | if (!map->OnlyHasSimpleProperties()) return Just(false); |
| 1504 | |
| 1505 | Handle<JSObject> from = Handle<JSObject>::cast(next_source); |
| 1506 | if (from->elements() != isolate->heap()->empty_fixed_array()) { |
| 1507 | return Just(false); |
| 1508 | } |
| 1509 | |
| 1510 | Handle<DescriptorArray> descriptors(map->instance_descriptors(), isolate); |
| 1511 | int length = map->NumberOfOwnDescriptors(); |
| 1512 | |
| 1513 | bool stable = true; |
| 1514 | |
| 1515 | for (int i = 0; i < length; i++) { |
| 1516 | Handle<Name> next_key(descriptors->GetKey(i), isolate); |
| 1517 | Handle<Object> prop_value; |
| 1518 | // Directly decode from the descriptor array if |from| did not change shape. |
| 1519 | if (stable) { |
| 1520 | PropertyDetails details = descriptors->GetDetails(i); |
| 1521 | if (!details.IsEnumerable()) continue; |
| 1522 | if (details.kind() == kData) { |
| 1523 | if (details.location() == kDescriptor) { |
| 1524 | prop_value = handle(descriptors->GetValue(i), isolate); |
| 1525 | } else { |
| 1526 | Representation representation = details.representation(); |
| 1527 | FieldIndex index = FieldIndex::ForDescriptor(*map, i); |
| 1528 | prop_value = JSObject::FastPropertyAt(from, representation, index); |
| 1529 | } |
| 1530 | } else { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1531 | ASSIGN_RETURN_ON_EXCEPTION_VALUE( |
| 1532 | isolate, prop_value, JSReceiver::GetProperty(from, next_key), |
| 1533 | Nothing<bool>()); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1534 | stable = from->map() == *map; |
| 1535 | } |
| 1536 | } else { |
| 1537 | // If the map did change, do a slower lookup. We are still guaranteed that |
| 1538 | // the object has a simple shape, and that the key is a name. |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1539 | LookupIterator it(from, next_key, from, |
| 1540 | LookupIterator::OWN_SKIP_INTERCEPTOR); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1541 | if (!it.IsFound()) continue; |
| 1542 | DCHECK(it.state() == LookupIterator::DATA || |
| 1543 | it.state() == LookupIterator::ACCESSOR); |
| 1544 | if (!it.IsEnumerable()) continue; |
| 1545 | ASSIGN_RETURN_ON_EXCEPTION_VALUE( |
| 1546 | isolate, prop_value, Object::GetProperty(&it), Nothing<bool>()); |
| 1547 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 1548 | LookupIterator it(to, next_key, to); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1549 | bool call_to_js = it.IsFound() && it.state() != LookupIterator::DATA; |
| 1550 | Maybe<bool> result = Object::SetProperty( |
| 1551 | &it, prop_value, STRICT, Object::CERTAINLY_NOT_STORE_FROM_KEYED); |
| 1552 | if (result.IsNothing()) return result; |
| 1553 | if (stable && call_to_js) stable = from->map() == *map; |
| 1554 | } |
| 1555 | |
| 1556 | return Just(true); |
| 1557 | } |
| 1558 | |
| 1559 | } // namespace |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1560 | |
| 1561 | // ES6 19.1.2.1 Object.assign |
| 1562 | BUILTIN(ObjectAssign) { |
| 1563 | HandleScope scope(isolate); |
| 1564 | Handle<Object> target = args.atOrUndefined(isolate, 1); |
| 1565 | |
| 1566 | // 1. Let to be ? ToObject(target). |
| 1567 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, target, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1568 | Object::ToObject(isolate, target)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1569 | Handle<JSReceiver> to = Handle<JSReceiver>::cast(target); |
| 1570 | // 2. If only one argument was passed, return to. |
| 1571 | if (args.length() == 2) return *to; |
| 1572 | // 3. Let sources be the List of argument values starting with the |
| 1573 | // second argument. |
| 1574 | // 4. For each element nextSource of sources, in ascending index order, |
| 1575 | for (int i = 2; i < args.length(); ++i) { |
| 1576 | Handle<Object> next_source = args.at<Object>(i); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1577 | Maybe<bool> fast_assign = FastAssign(to, next_source); |
| 1578 | if (fast_assign.IsNothing()) return isolate->heap()->exception(); |
| 1579 | if (fast_assign.FromJust()) continue; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1580 | // 4a. If nextSource is undefined or null, let keys be an empty List. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1581 | // 4b. Else, |
| 1582 | // 4b i. Let from be ToObject(nextSource). |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1583 | // Only non-empty strings and JSReceivers have enumerable properties. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1584 | Handle<JSReceiver> from = |
| 1585 | Object::ToObject(isolate, next_source).ToHandleChecked(); |
| 1586 | // 4b ii. Let keys be ? from.[[OwnPropertyKeys]](). |
| 1587 | Handle<FixedArray> keys; |
| 1588 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1589 | isolate, keys, KeyAccumulator::GetKeys( |
| 1590 | from, KeyCollectionMode::kOwnOnly, ALL_PROPERTIES, |
| 1591 | GetKeysConversion::kKeepNumbers)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1592 | // 4c. Repeat for each element nextKey of keys in List order, |
| 1593 | for (int j = 0; j < keys->length(); ++j) { |
| 1594 | Handle<Object> next_key(keys->get(j), isolate); |
| 1595 | // 4c i. Let desc be ? from.[[GetOwnProperty]](nextKey). |
| 1596 | PropertyDescriptor desc; |
| 1597 | Maybe<bool> found = |
| 1598 | JSReceiver::GetOwnPropertyDescriptor(isolate, from, next_key, &desc); |
| 1599 | if (found.IsNothing()) return isolate->heap()->exception(); |
| 1600 | // 4c ii. If desc is not undefined and desc.[[Enumerable]] is true, then |
| 1601 | if (found.FromJust() && desc.enumerable()) { |
| 1602 | // 4c ii 1. Let propValue be ? Get(from, nextKey). |
| 1603 | Handle<Object> prop_value; |
| 1604 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 1605 | isolate, prop_value, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1606 | Runtime::GetObjectProperty(isolate, from, next_key)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1607 | // 4c ii 2. Let status be ? Set(to, nextKey, propValue, true). |
| 1608 | Handle<Object> status; |
| 1609 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 1610 | isolate, status, Runtime::SetObjectProperty(isolate, to, next_key, |
| 1611 | prop_value, STRICT)); |
| 1612 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1613 | } |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 1614 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1615 | // 5. Return to. |
| 1616 | return *to; |
| 1617 | } |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 1618 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1619 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1620 | // ES6 section 19.1.2.2 Object.create ( O [ , Properties ] ) |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1621 | // TODO(verwaest): Support the common cases with precached map directly in |
| 1622 | // an Object.create stub. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1623 | BUILTIN(ObjectCreate) { |
| 1624 | HandleScope scope(isolate); |
| 1625 | Handle<Object> prototype = args.atOrUndefined(isolate, 1); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1626 | if (!prototype->IsNull(isolate) && !prototype->IsJSReceiver()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1627 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 1628 | isolate, NewTypeError(MessageTemplate::kProtoObjectOrNull, prototype)); |
| 1629 | } |
| 1630 | |
| 1631 | // Generate the map with the specified {prototype} based on the Object |
| 1632 | // function's initial map from the current native context. |
| 1633 | // TODO(bmeurer): Use a dedicated cache for Object.create; think about |
| 1634 | // slack tracking for Object.create. |
| 1635 | Handle<Map> map(isolate->native_context()->object_function()->initial_map(), |
| 1636 | isolate); |
| 1637 | if (map->prototype() != *prototype) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1638 | if (prototype->IsNull(isolate)) { |
| 1639 | map = isolate->object_with_null_prototype_map(); |
| 1640 | } else if (prototype->IsJSObject()) { |
| 1641 | Handle<JSObject> js_prototype = Handle<JSObject>::cast(prototype); |
| 1642 | if (!js_prototype->map()->is_prototype_map()) { |
| 1643 | JSObject::OptimizeAsPrototype(js_prototype, FAST_PROTOTYPE); |
| 1644 | } |
| 1645 | Handle<PrototypeInfo> info = |
| 1646 | Map::GetOrCreatePrototypeInfo(js_prototype, isolate); |
| 1647 | // TODO(verwaest): Use inobject slack tracking for this map. |
| 1648 | if (info->HasObjectCreateMap()) { |
| 1649 | map = handle(info->ObjectCreateMap(), isolate); |
| 1650 | } else { |
| 1651 | map = Map::CopyInitialMap(map); |
| 1652 | Map::SetPrototype(map, prototype, FAST_PROTOTYPE); |
| 1653 | PrototypeInfo::SetObjectCreateMap(info, map); |
| 1654 | } |
| 1655 | } else { |
| 1656 | map = Map::TransitionToPrototype(map, prototype, REGULAR_PROTOTYPE); |
| 1657 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1658 | } |
| 1659 | |
| 1660 | // Actually allocate the object. |
| 1661 | Handle<JSObject> object = isolate->factory()->NewJSObjectFromMap(map); |
| 1662 | |
| 1663 | // Define the properties if properties was specified and is not undefined. |
| 1664 | Handle<Object> properties = args.atOrUndefined(isolate, 2); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1665 | if (!properties->IsUndefined(isolate)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1666 | RETURN_FAILURE_ON_EXCEPTION( |
| 1667 | isolate, JSReceiver::DefineProperties(isolate, object, properties)); |
| 1668 | } |
| 1669 | |
| 1670 | return *object; |
| 1671 | } |
| 1672 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1673 | // ES6 section 19.1.2.3 Object.defineProperties |
| 1674 | BUILTIN(ObjectDefineProperties) { |
| 1675 | HandleScope scope(isolate); |
| 1676 | DCHECK_EQ(3, args.length()); |
| 1677 | Handle<Object> target = args.at<Object>(1); |
| 1678 | Handle<Object> properties = args.at<Object>(2); |
| 1679 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1680 | RETURN_RESULT_OR_FAILURE( |
| 1681 | isolate, JSReceiver::DefineProperties(isolate, target, properties)); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1682 | } |
| 1683 | |
| 1684 | // ES6 section 19.1.2.4 Object.defineProperty |
| 1685 | BUILTIN(ObjectDefineProperty) { |
| 1686 | HandleScope scope(isolate); |
| 1687 | DCHECK_EQ(4, args.length()); |
| 1688 | Handle<Object> target = args.at<Object>(1); |
| 1689 | Handle<Object> key = args.at<Object>(2); |
| 1690 | Handle<Object> attributes = args.at<Object>(3); |
| 1691 | |
| 1692 | return JSReceiver::DefineProperty(isolate, target, key, attributes); |
| 1693 | } |
| 1694 | |
| 1695 | namespace { |
| 1696 | |
| 1697 | template <AccessorComponent which_accessor> |
| 1698 | Object* ObjectDefineAccessor(Isolate* isolate, Handle<Object> object, |
| 1699 | Handle<Object> name, Handle<Object> accessor) { |
| 1700 | // 1. Let O be ? ToObject(this value). |
| 1701 | Handle<JSReceiver> receiver; |
| 1702 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, receiver, |
| 1703 | Object::ConvertReceiver(isolate, object)); |
| 1704 | // 2. If IsCallable(getter) is false, throw a TypeError exception. |
| 1705 | if (!accessor->IsCallable()) { |
| 1706 | MessageTemplate::Template message = |
| 1707 | which_accessor == ACCESSOR_GETTER |
| 1708 | ? MessageTemplate::kObjectGetterExpectingFunction |
| 1709 | : MessageTemplate::kObjectSetterExpectingFunction; |
| 1710 | THROW_NEW_ERROR_RETURN_FAILURE(isolate, NewTypeError(message)); |
| 1711 | } |
| 1712 | // 3. Let desc be PropertyDescriptor{[[Get]]: getter, [[Enumerable]]: true, |
| 1713 | // [[Configurable]]: true}. |
| 1714 | PropertyDescriptor desc; |
| 1715 | if (which_accessor == ACCESSOR_GETTER) { |
| 1716 | desc.set_get(accessor); |
| 1717 | } else { |
| 1718 | DCHECK(which_accessor == ACCESSOR_SETTER); |
| 1719 | desc.set_set(accessor); |
| 1720 | } |
| 1721 | desc.set_enumerable(true); |
| 1722 | desc.set_configurable(true); |
| 1723 | // 4. Let key be ? ToPropertyKey(P). |
| 1724 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, name, |
| 1725 | Object::ToPropertyKey(isolate, name)); |
| 1726 | // 5. Perform ? DefinePropertyOrThrow(O, key, desc). |
| 1727 | // To preserve legacy behavior, we ignore errors silently rather than |
| 1728 | // throwing an exception. |
| 1729 | Maybe<bool> success = JSReceiver::DefineOwnProperty( |
| 1730 | isolate, receiver, name, &desc, Object::DONT_THROW); |
| 1731 | MAYBE_RETURN(success, isolate->heap()->exception()); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1732 | if (!success.FromJust()) { |
| 1733 | isolate->CountUsage(v8::Isolate::kDefineGetterOrSetterWouldThrow); |
| 1734 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1735 | // 6. Return undefined. |
| 1736 | return isolate->heap()->undefined_value(); |
| 1737 | } |
| 1738 | |
| 1739 | Object* ObjectLookupAccessor(Isolate* isolate, Handle<Object> object, |
| 1740 | Handle<Object> key, AccessorComponent component) { |
| 1741 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, object, |
| 1742 | Object::ConvertReceiver(isolate, object)); |
| 1743 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, key, |
| 1744 | Object::ToPropertyKey(isolate, key)); |
| 1745 | bool success = false; |
| 1746 | LookupIterator it = LookupIterator::PropertyOrElement( |
| 1747 | isolate, object, key, &success, |
| 1748 | LookupIterator::PROTOTYPE_CHAIN_SKIP_INTERCEPTOR); |
| 1749 | DCHECK(success); |
| 1750 | |
| 1751 | for (; it.IsFound(); it.Next()) { |
| 1752 | switch (it.state()) { |
| 1753 | case LookupIterator::INTERCEPTOR: |
| 1754 | case LookupIterator::NOT_FOUND: |
| 1755 | case LookupIterator::TRANSITION: |
| 1756 | UNREACHABLE(); |
| 1757 | |
| 1758 | case LookupIterator::ACCESS_CHECK: |
| 1759 | if (it.HasAccess()) continue; |
| 1760 | isolate->ReportFailedAccessCheck(it.GetHolder<JSObject>()); |
| 1761 | RETURN_FAILURE_IF_SCHEDULED_EXCEPTION(isolate); |
| 1762 | return isolate->heap()->undefined_value(); |
| 1763 | |
| 1764 | case LookupIterator::JSPROXY: |
| 1765 | return isolate->heap()->undefined_value(); |
| 1766 | |
| 1767 | case LookupIterator::INTEGER_INDEXED_EXOTIC: |
| 1768 | return isolate->heap()->undefined_value(); |
| 1769 | case LookupIterator::DATA: |
| 1770 | continue; |
| 1771 | case LookupIterator::ACCESSOR: { |
| 1772 | Handle<Object> maybe_pair = it.GetAccessors(); |
| 1773 | if (maybe_pair->IsAccessorPair()) { |
| 1774 | return *AccessorPair::GetComponent( |
| 1775 | Handle<AccessorPair>::cast(maybe_pair), component); |
| 1776 | } |
| 1777 | } |
| 1778 | } |
| 1779 | } |
| 1780 | |
| 1781 | return isolate->heap()->undefined_value(); |
| 1782 | } |
| 1783 | |
| 1784 | } // namespace |
| 1785 | |
| 1786 | // ES6 B.2.2.2 a.k.a. |
| 1787 | // https://tc39.github.io/ecma262/#sec-object.prototype.__defineGetter__ |
| 1788 | BUILTIN(ObjectDefineGetter) { |
| 1789 | HandleScope scope(isolate); |
| 1790 | Handle<Object> object = args.at<Object>(0); // Receiver. |
| 1791 | Handle<Object> name = args.at<Object>(1); |
| 1792 | Handle<Object> getter = args.at<Object>(2); |
| 1793 | return ObjectDefineAccessor<ACCESSOR_GETTER>(isolate, object, name, getter); |
| 1794 | } |
| 1795 | |
| 1796 | // ES6 B.2.2.3 a.k.a. |
| 1797 | // https://tc39.github.io/ecma262/#sec-object.prototype.__defineSetter__ |
| 1798 | BUILTIN(ObjectDefineSetter) { |
| 1799 | HandleScope scope(isolate); |
| 1800 | Handle<Object> object = args.at<Object>(0); // Receiver. |
| 1801 | Handle<Object> name = args.at<Object>(1); |
| 1802 | Handle<Object> setter = args.at<Object>(2); |
| 1803 | return ObjectDefineAccessor<ACCESSOR_SETTER>(isolate, object, name, setter); |
| 1804 | } |
| 1805 | |
| 1806 | // ES6 B.2.2.4 a.k.a. |
| 1807 | // https://tc39.github.io/ecma262/#sec-object.prototype.__lookupGetter__ |
| 1808 | BUILTIN(ObjectLookupGetter) { |
| 1809 | HandleScope scope(isolate); |
| 1810 | Handle<Object> object = args.at<Object>(0); |
| 1811 | Handle<Object> name = args.at<Object>(1); |
| 1812 | return ObjectLookupAccessor(isolate, object, name, ACCESSOR_GETTER); |
| 1813 | } |
| 1814 | |
| 1815 | // ES6 B.2.2.5 a.k.a. |
| 1816 | // https://tc39.github.io/ecma262/#sec-object.prototype.__lookupSetter__ |
| 1817 | BUILTIN(ObjectLookupSetter) { |
| 1818 | HandleScope scope(isolate); |
| 1819 | Handle<Object> object = args.at<Object>(0); |
| 1820 | Handle<Object> name = args.at<Object>(1); |
| 1821 | return ObjectLookupAccessor(isolate, object, name, ACCESSOR_SETTER); |
| 1822 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1823 | |
| 1824 | // ES6 section 19.1.2.5 Object.freeze ( O ) |
| 1825 | BUILTIN(ObjectFreeze) { |
| 1826 | HandleScope scope(isolate); |
| 1827 | Handle<Object> object = args.atOrUndefined(isolate, 1); |
| 1828 | if (object->IsJSReceiver()) { |
| 1829 | MAYBE_RETURN(JSReceiver::SetIntegrityLevel(Handle<JSReceiver>::cast(object), |
| 1830 | FROZEN, Object::THROW_ON_ERROR), |
| 1831 | isolate->heap()->exception()); |
| 1832 | } |
| 1833 | return *object; |
| 1834 | } |
| 1835 | |
| 1836 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1837 | // ES section 19.1.2.9 Object.getPrototypeOf ( O ) |
| 1838 | BUILTIN(ObjectGetPrototypeOf) { |
| 1839 | HandleScope scope(isolate); |
| 1840 | Handle<Object> object = args.atOrUndefined(isolate, 1); |
| 1841 | |
| 1842 | Handle<JSReceiver> receiver; |
| 1843 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 1844 | isolate, receiver, Object::ToObject(isolate, object)); |
| 1845 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1846 | RETURN_RESULT_OR_FAILURE(isolate, |
| 1847 | JSReceiver::GetPrototype(isolate, receiver)); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 1848 | } |
| 1849 | |
| 1850 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1851 | // ES6 section 19.1.2.6 Object.getOwnPropertyDescriptor ( O, P ) |
| 1852 | BUILTIN(ObjectGetOwnPropertyDescriptor) { |
| 1853 | HandleScope scope(isolate); |
| 1854 | // 1. Let obj be ? ToObject(O). |
| 1855 | Handle<Object> object = args.atOrUndefined(isolate, 1); |
| 1856 | Handle<JSReceiver> receiver; |
| 1857 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, receiver, |
| 1858 | Object::ToObject(isolate, object)); |
| 1859 | // 2. Let key be ? ToPropertyKey(P). |
| 1860 | Handle<Object> property = args.atOrUndefined(isolate, 2); |
| 1861 | Handle<Name> key; |
| 1862 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, key, |
| 1863 | Object::ToName(isolate, property)); |
| 1864 | // 3. Let desc be ? obj.[[GetOwnProperty]](key). |
| 1865 | PropertyDescriptor desc; |
| 1866 | Maybe<bool> found = |
| 1867 | JSReceiver::GetOwnPropertyDescriptor(isolate, receiver, key, &desc); |
| 1868 | MAYBE_RETURN(found, isolate->heap()->exception()); |
| 1869 | // 4. Return FromPropertyDescriptor(desc). |
| 1870 | if (!found.FromJust()) return isolate->heap()->undefined_value(); |
| 1871 | return *desc.ToObject(isolate); |
| 1872 | } |
| 1873 | |
| 1874 | |
| 1875 | namespace { |
| 1876 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1877 | Object* GetOwnPropertyKeys(Isolate* isolate, BuiltinArguments args, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1878 | PropertyFilter filter) { |
| 1879 | HandleScope scope(isolate); |
| 1880 | Handle<Object> object = args.atOrUndefined(isolate, 1); |
| 1881 | Handle<JSReceiver> receiver; |
| 1882 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, receiver, |
| 1883 | Object::ToObject(isolate, object)); |
| 1884 | Handle<FixedArray> keys; |
| 1885 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 1886 | isolate, keys, |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1887 | KeyAccumulator::GetKeys(receiver, KeyCollectionMode::kOwnOnly, filter, |
| 1888 | GetKeysConversion::kConvertToString)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1889 | return *isolate->factory()->NewJSArrayWithElements(keys); |
| 1890 | } |
| 1891 | |
| 1892 | } // namespace |
| 1893 | |
| 1894 | |
| 1895 | // ES6 section 19.1.2.7 Object.getOwnPropertyNames ( O ) |
| 1896 | BUILTIN(ObjectGetOwnPropertyNames) { |
| 1897 | return GetOwnPropertyKeys(isolate, args, SKIP_SYMBOLS); |
| 1898 | } |
| 1899 | |
| 1900 | |
| 1901 | // ES6 section 19.1.2.8 Object.getOwnPropertySymbols ( O ) |
| 1902 | BUILTIN(ObjectGetOwnPropertySymbols) { |
| 1903 | return GetOwnPropertyKeys(isolate, args, SKIP_STRINGS); |
| 1904 | } |
| 1905 | |
| 1906 | |
| 1907 | // ES#sec-object.is Object.is ( value1, value2 ) |
| 1908 | BUILTIN(ObjectIs) { |
| 1909 | SealHandleScope shs(isolate); |
| 1910 | DCHECK_EQ(3, args.length()); |
| 1911 | Handle<Object> value1 = args.at<Object>(1); |
| 1912 | Handle<Object> value2 = args.at<Object>(2); |
| 1913 | return isolate->heap()->ToBoolean(value1->SameValue(*value2)); |
| 1914 | } |
| 1915 | |
| 1916 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1917 | // ES6 section 19.1.2.11 Object.isExtensible ( O ) |
| 1918 | BUILTIN(ObjectIsExtensible) { |
| 1919 | HandleScope scope(isolate); |
| 1920 | Handle<Object> object = args.atOrUndefined(isolate, 1); |
| 1921 | Maybe<bool> result = |
| 1922 | object->IsJSReceiver() |
| 1923 | ? JSReceiver::IsExtensible(Handle<JSReceiver>::cast(object)) |
| 1924 | : Just(false); |
| 1925 | MAYBE_RETURN(result, isolate->heap()->exception()); |
| 1926 | return isolate->heap()->ToBoolean(result.FromJust()); |
| 1927 | } |
| 1928 | |
| 1929 | |
| 1930 | // ES6 section 19.1.2.12 Object.isFrozen ( O ) |
| 1931 | BUILTIN(ObjectIsFrozen) { |
| 1932 | HandleScope scope(isolate); |
| 1933 | Handle<Object> object = args.atOrUndefined(isolate, 1); |
| 1934 | Maybe<bool> result = object->IsJSReceiver() |
| 1935 | ? JSReceiver::TestIntegrityLevel( |
| 1936 | Handle<JSReceiver>::cast(object), FROZEN) |
| 1937 | : Just(true); |
| 1938 | MAYBE_RETURN(result, isolate->heap()->exception()); |
| 1939 | return isolate->heap()->ToBoolean(result.FromJust()); |
| 1940 | } |
| 1941 | |
| 1942 | |
| 1943 | // ES6 section 19.1.2.13 Object.isSealed ( O ) |
| 1944 | BUILTIN(ObjectIsSealed) { |
| 1945 | HandleScope scope(isolate); |
| 1946 | Handle<Object> object = args.atOrUndefined(isolate, 1); |
| 1947 | Maybe<bool> result = object->IsJSReceiver() |
| 1948 | ? JSReceiver::TestIntegrityLevel( |
| 1949 | Handle<JSReceiver>::cast(object), SEALED) |
| 1950 | : Just(true); |
| 1951 | MAYBE_RETURN(result, isolate->heap()->exception()); |
| 1952 | return isolate->heap()->ToBoolean(result.FromJust()); |
| 1953 | } |
| 1954 | |
| 1955 | |
| 1956 | // ES6 section 19.1.2.14 Object.keys ( O ) |
| 1957 | BUILTIN(ObjectKeys) { |
| 1958 | HandleScope scope(isolate); |
| 1959 | Handle<Object> object = args.atOrUndefined(isolate, 1); |
| 1960 | Handle<JSReceiver> receiver; |
| 1961 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, receiver, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1962 | Object::ToObject(isolate, object)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1963 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1964 | Handle<FixedArray> keys; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1965 | int enum_length = receiver->map()->EnumLength(); |
| 1966 | if (enum_length != kInvalidEnumCacheSentinel && |
| 1967 | JSObject::cast(*receiver)->elements() == |
| 1968 | isolate->heap()->empty_fixed_array()) { |
| 1969 | DCHECK(receiver->IsJSObject()); |
| 1970 | DCHECK(!JSObject::cast(*receiver)->HasNamedInterceptor()); |
| 1971 | DCHECK(!JSObject::cast(*receiver)->IsAccessCheckNeeded()); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1972 | DCHECK(!receiver->map()->has_hidden_prototype()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1973 | DCHECK(JSObject::cast(*receiver)->HasFastProperties()); |
| 1974 | if (enum_length == 0) { |
| 1975 | keys = isolate->factory()->empty_fixed_array(); |
| 1976 | } else { |
| 1977 | Handle<FixedArray> cache( |
| 1978 | receiver->map()->instance_descriptors()->GetEnumCache()); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1979 | keys = isolate->factory()->CopyFixedArrayUpTo(cache, enum_length); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1980 | } |
| 1981 | } else { |
| 1982 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 1983 | isolate, keys, |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 1984 | KeyAccumulator::GetKeys(receiver, KeyCollectionMode::kOwnOnly, |
| 1985 | ENUMERABLE_STRINGS, |
| 1986 | GetKeysConversion::kConvertToString)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1987 | } |
| 1988 | return *isolate->factory()->NewJSArrayWithElements(keys, FAST_ELEMENTS); |
| 1989 | } |
| 1990 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 1991 | BUILTIN(ObjectValues) { |
| 1992 | HandleScope scope(isolate); |
| 1993 | Handle<Object> object = args.atOrUndefined(isolate, 1); |
| 1994 | Handle<JSReceiver> receiver; |
| 1995 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, receiver, |
| 1996 | Object::ToObject(isolate, object)); |
| 1997 | Handle<FixedArray> values; |
| 1998 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 1999 | isolate, values, JSReceiver::GetOwnValues(receiver, ENUMERABLE_STRINGS)); |
| 2000 | return *isolate->factory()->NewJSArrayWithElements(values); |
| 2001 | } |
| 2002 | |
| 2003 | |
| 2004 | BUILTIN(ObjectEntries) { |
| 2005 | HandleScope scope(isolate); |
| 2006 | Handle<Object> object = args.atOrUndefined(isolate, 1); |
| 2007 | Handle<JSReceiver> receiver; |
| 2008 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, receiver, |
| 2009 | Object::ToObject(isolate, object)); |
| 2010 | Handle<FixedArray> entries; |
| 2011 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 2012 | isolate, entries, |
| 2013 | JSReceiver::GetOwnEntries(receiver, ENUMERABLE_STRINGS)); |
| 2014 | return *isolate->factory()->NewJSArrayWithElements(entries); |
| 2015 | } |
| 2016 | |
| 2017 | BUILTIN(ObjectGetOwnPropertyDescriptors) { |
| 2018 | HandleScope scope(isolate); |
| 2019 | Handle<Object> object = args.atOrUndefined(isolate, 1); |
| 2020 | Handle<Object> undefined = isolate->factory()->undefined_value(); |
| 2021 | |
| 2022 | Handle<JSReceiver> receiver; |
| 2023 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, receiver, |
| 2024 | Object::ToObject(isolate, object)); |
| 2025 | |
| 2026 | Handle<FixedArray> keys; |
| 2027 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2028 | isolate, keys, KeyAccumulator::GetKeys( |
| 2029 | receiver, KeyCollectionMode::kOwnOnly, ALL_PROPERTIES, |
| 2030 | GetKeysConversion::kConvertToString)); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2031 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2032 | Handle<JSObject> descriptors = |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2033 | isolate->factory()->NewJSObject(isolate->object_function()); |
| 2034 | |
| 2035 | for (int i = 0; i < keys->length(); ++i) { |
| 2036 | Handle<Name> key = Handle<Name>::cast(FixedArray::get(*keys, i, isolate)); |
| 2037 | PropertyDescriptor descriptor; |
| 2038 | Maybe<bool> did_get_descriptor = JSReceiver::GetOwnPropertyDescriptor( |
| 2039 | isolate, receiver, key, &descriptor); |
| 2040 | MAYBE_RETURN(did_get_descriptor, isolate->heap()->exception()); |
| 2041 | |
| 2042 | Handle<Object> from_descriptor = did_get_descriptor.FromJust() |
| 2043 | ? descriptor.ToObject(isolate) |
| 2044 | : undefined; |
| 2045 | |
| 2046 | LookupIterator it = LookupIterator::PropertyOrElement( |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2047 | isolate, descriptors, key, descriptors, LookupIterator::OWN); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2048 | Maybe<bool> success = JSReceiver::CreateDataProperty(&it, from_descriptor, |
| 2049 | Object::DONT_THROW); |
| 2050 | CHECK(success.FromJust()); |
| 2051 | } |
| 2052 | |
| 2053 | return *descriptors; |
| 2054 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2055 | |
| 2056 | // ES6 section 19.1.2.15 Object.preventExtensions ( O ) |
| 2057 | BUILTIN(ObjectPreventExtensions) { |
| 2058 | HandleScope scope(isolate); |
| 2059 | Handle<Object> object = args.atOrUndefined(isolate, 1); |
| 2060 | if (object->IsJSReceiver()) { |
| 2061 | MAYBE_RETURN(JSReceiver::PreventExtensions(Handle<JSReceiver>::cast(object), |
| 2062 | Object::THROW_ON_ERROR), |
| 2063 | isolate->heap()->exception()); |
| 2064 | } |
| 2065 | return *object; |
| 2066 | } |
| 2067 | |
| 2068 | |
| 2069 | // ES6 section 19.1.2.17 Object.seal ( O ) |
| 2070 | BUILTIN(ObjectSeal) { |
| 2071 | HandleScope scope(isolate); |
| 2072 | Handle<Object> object = args.atOrUndefined(isolate, 1); |
| 2073 | if (object->IsJSReceiver()) { |
| 2074 | MAYBE_RETURN(JSReceiver::SetIntegrityLevel(Handle<JSReceiver>::cast(object), |
| 2075 | SEALED, Object::THROW_ON_ERROR), |
| 2076 | isolate->heap()->exception()); |
| 2077 | } |
| 2078 | return *object; |
| 2079 | } |
| 2080 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2081 | // ES6 section 18.2.6.2 decodeURI (encodedURI) |
| 2082 | BUILTIN(GlobalDecodeURI) { |
| 2083 | HandleScope scope(isolate); |
| 2084 | Handle<String> encoded_uri; |
| 2085 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 2086 | isolate, encoded_uri, |
| 2087 | Object::ToString(isolate, args.atOrUndefined(isolate, 1))); |
| 2088 | |
| 2089 | RETURN_RESULT_OR_FAILURE(isolate, Uri::DecodeUri(isolate, encoded_uri)); |
| 2090 | } |
| 2091 | |
| 2092 | // ES6 section 18.2.6.3 decodeURIComponent (encodedURIComponent) |
| 2093 | BUILTIN(GlobalDecodeURIComponent) { |
| 2094 | HandleScope scope(isolate); |
| 2095 | Handle<String> encoded_uri_component; |
| 2096 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 2097 | isolate, encoded_uri_component, |
| 2098 | Object::ToString(isolate, args.atOrUndefined(isolate, 1))); |
| 2099 | |
| 2100 | RETURN_RESULT_OR_FAILURE( |
| 2101 | isolate, Uri::DecodeUriComponent(isolate, encoded_uri_component)); |
| 2102 | } |
| 2103 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2104 | // ES6 section 18.2.6.4 encodeURI (uri) |
| 2105 | BUILTIN(GlobalEncodeURI) { |
| 2106 | HandleScope scope(isolate); |
| 2107 | Handle<String> uri; |
| 2108 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 2109 | isolate, uri, Object::ToString(isolate, args.atOrUndefined(isolate, 1))); |
| 2110 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2111 | RETURN_RESULT_OR_FAILURE(isolate, Uri::EncodeUri(isolate, uri)); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2112 | } |
| 2113 | |
| 2114 | // ES6 section 18.2.6.5 encodeURIComponenet (uriComponent) |
| 2115 | BUILTIN(GlobalEncodeURIComponent) { |
| 2116 | HandleScope scope(isolate); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2117 | Handle<String> uri_component; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2118 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2119 | isolate, uri_component, |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2120 | Object::ToString(isolate, args.atOrUndefined(isolate, 1))); |
| 2121 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2122 | RETURN_RESULT_OR_FAILURE(isolate, |
| 2123 | Uri::EncodeUriComponent(isolate, uri_component)); |
| 2124 | } |
| 2125 | |
| 2126 | // ES6 section B.2.1.1 escape (string) |
| 2127 | BUILTIN(GlobalEscape) { |
| 2128 | HandleScope scope(isolate); |
| 2129 | Handle<String> string; |
| 2130 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 2131 | isolate, string, |
| 2132 | Object::ToString(isolate, args.atOrUndefined(isolate, 1))); |
| 2133 | |
| 2134 | RETURN_RESULT_OR_FAILURE(isolate, Uri::Escape(isolate, string)); |
| 2135 | } |
| 2136 | |
| 2137 | // ES6 section B.2.1.2 unescape (string) |
| 2138 | BUILTIN(GlobalUnescape) { |
| 2139 | HandleScope scope(isolate); |
| 2140 | Handle<String> string; |
| 2141 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 2142 | isolate, string, |
| 2143 | Object::ToString(isolate, args.atOrUndefined(isolate, 1))); |
| 2144 | |
| 2145 | RETURN_RESULT_OR_FAILURE(isolate, Uri::Unescape(isolate, string)); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2146 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2147 | |
| 2148 | namespace { |
| 2149 | |
| 2150 | bool CodeGenerationFromStringsAllowed(Isolate* isolate, |
| 2151 | Handle<Context> context) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2152 | DCHECK(context->allow_code_gen_from_strings()->IsFalse(isolate)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2153 | // Check with callback if set. |
| 2154 | AllowCodeGenerationFromStringsCallback callback = |
| 2155 | isolate->allow_code_gen_callback(); |
| 2156 | if (callback == NULL) { |
| 2157 | // No callback set and code generation disallowed. |
| 2158 | return false; |
| 2159 | } else { |
| 2160 | // Callback set. Let it decide if code generation is allowed. |
| 2161 | VMState<EXTERNAL> state(isolate); |
| 2162 | return callback(v8::Utils::ToLocal(context)); |
| 2163 | } |
| 2164 | } |
| 2165 | |
| 2166 | |
| 2167 | MaybeHandle<JSFunction> CompileString(Handle<Context> context, |
| 2168 | Handle<String> source, |
| 2169 | ParseRestriction restriction) { |
| 2170 | Isolate* const isolate = context->GetIsolate(); |
| 2171 | Handle<Context> native_context(context->native_context(), isolate); |
| 2172 | |
| 2173 | // Check if native context allows code generation from |
| 2174 | // strings. Throw an exception if it doesn't. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2175 | if (native_context->allow_code_gen_from_strings()->IsFalse(isolate) && |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2176 | !CodeGenerationFromStringsAllowed(isolate, native_context)) { |
| 2177 | Handle<Object> error_message = |
| 2178 | native_context->ErrorMessageForCodeGenerationFromStrings(); |
| 2179 | THROW_NEW_ERROR(isolate, NewEvalError(MessageTemplate::kCodeGenFromStrings, |
| 2180 | error_message), |
| 2181 | JSFunction); |
| 2182 | } |
| 2183 | |
| 2184 | // Compile source string in the native context. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2185 | int eval_scope_position = 0; |
| 2186 | int eval_position = RelocInfo::kNoPosition; |
| 2187 | Handle<SharedFunctionInfo> outer_info(native_context->closure()->shared()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2188 | return Compiler::GetFunctionFromEval(source, outer_info, native_context, |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2189 | SLOPPY, restriction, eval_scope_position, |
| 2190 | eval_position); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2191 | } |
| 2192 | |
| 2193 | } // namespace |
| 2194 | |
| 2195 | |
| 2196 | // ES6 section 18.2.1 eval (x) |
| 2197 | BUILTIN(GlobalEval) { |
| 2198 | HandleScope scope(isolate); |
| 2199 | Handle<Object> x = args.atOrUndefined(isolate, 1); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2200 | Handle<JSFunction> target = args.target<JSFunction>(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2201 | Handle<JSObject> target_global_proxy(target->global_proxy(), isolate); |
| 2202 | if (!x->IsString()) return *x; |
| 2203 | Handle<JSFunction> function; |
| 2204 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 2205 | isolate, function, |
| 2206 | CompileString(handle(target->native_context(), isolate), |
| 2207 | Handle<String>::cast(x), NO_PARSE_RESTRICTION)); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2208 | RETURN_RESULT_OR_FAILURE( |
| 2209 | isolate, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2210 | Execution::Call(isolate, function, target_global_proxy, 0, nullptr)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2211 | } |
| 2212 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2213 | // ES6 section 24.3.1 JSON.parse. |
| 2214 | BUILTIN(JsonParse) { |
| 2215 | HandleScope scope(isolate); |
| 2216 | Handle<Object> source = args.atOrUndefined(isolate, 1); |
| 2217 | Handle<Object> reviver = args.atOrUndefined(isolate, 2); |
| 2218 | Handle<String> string; |
| 2219 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, string, |
| 2220 | Object::ToString(isolate, source)); |
| 2221 | string = String::Flatten(string); |
| 2222 | RETURN_RESULT_OR_FAILURE( |
| 2223 | isolate, string->IsSeqOneByteString() |
| 2224 | ? JsonParser<true>::Parse(isolate, string, reviver) |
| 2225 | : JsonParser<false>::Parse(isolate, string, reviver)); |
| 2226 | } |
| 2227 | |
| 2228 | // ES6 section 24.3.2 JSON.stringify. |
| 2229 | BUILTIN(JsonStringify) { |
| 2230 | HandleScope scope(isolate); |
| 2231 | JsonStringifier stringifier(isolate); |
| 2232 | Handle<Object> object = args.atOrUndefined(isolate, 1); |
| 2233 | Handle<Object> replacer = args.atOrUndefined(isolate, 2); |
| 2234 | Handle<Object> indent = args.atOrUndefined(isolate, 3); |
| 2235 | RETURN_RESULT_OR_FAILURE(isolate, |
| 2236 | stringifier.Stringify(object, replacer, indent)); |
| 2237 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2238 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2239 | // ----------------------------------------------------------------------------- |
| 2240 | // ES6 section 20.2.2 Function Properties of the Math Object |
| 2241 | |
| 2242 | |
| 2243 | // ES6 section 20.2.2.2 Math.acos ( x ) |
| 2244 | BUILTIN(MathAcos) { |
| 2245 | HandleScope scope(isolate); |
| 2246 | DCHECK_EQ(2, args.length()); |
| 2247 | Handle<Object> x = args.at<Object>(1); |
| 2248 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, x, Object::ToNumber(x)); |
| 2249 | return *isolate->factory()->NewHeapNumber(std::acos(x->Number())); |
| 2250 | } |
| 2251 | |
| 2252 | |
| 2253 | // ES6 section 20.2.2.4 Math.asin ( x ) |
| 2254 | BUILTIN(MathAsin) { |
| 2255 | HandleScope scope(isolate); |
| 2256 | DCHECK_EQ(2, args.length()); |
| 2257 | Handle<Object> x = args.at<Object>(1); |
| 2258 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, x, Object::ToNumber(x)); |
| 2259 | return *isolate->factory()->NewHeapNumber(std::asin(x->Number())); |
| 2260 | } |
| 2261 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2262 | // ES6 section 20.2.2.6 Math.atan ( x ) |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2263 | void Builtins::Generate_MathAtan(CodeStubAssembler* assembler) { |
| 2264 | using compiler::Node; |
| 2265 | |
| 2266 | Node* x = assembler->Parameter(1); |
| 2267 | Node* context = assembler->Parameter(4); |
| 2268 | Node* x_value = assembler->TruncateTaggedToFloat64(context, x); |
| 2269 | Node* value = assembler->Float64Atan(x_value); |
| 2270 | Node* result = assembler->ChangeFloat64ToTagged(value); |
| 2271 | assembler->Return(result); |
| 2272 | } |
| 2273 | |
| 2274 | // ES6 section 20.2.2.8 Math.atan2 ( y, x ) |
| 2275 | void Builtins::Generate_MathAtan2(CodeStubAssembler* assembler) { |
| 2276 | using compiler::Node; |
| 2277 | |
| 2278 | Node* y = assembler->Parameter(1); |
| 2279 | Node* x = assembler->Parameter(2); |
| 2280 | Node* context = assembler->Parameter(5); |
| 2281 | Node* y_value = assembler->TruncateTaggedToFloat64(context, y); |
| 2282 | Node* x_value = assembler->TruncateTaggedToFloat64(context, x); |
| 2283 | Node* value = assembler->Float64Atan2(y_value, x_value); |
| 2284 | Node* result = assembler->ChangeFloat64ToTagged(value); |
| 2285 | assembler->Return(result); |
| 2286 | } |
| 2287 | |
| 2288 | // ES6 section 20.2.2.7 Math.atanh ( x ) |
| 2289 | void Builtins::Generate_MathAtanh(CodeStubAssembler* assembler) { |
| 2290 | using compiler::Node; |
| 2291 | |
| 2292 | Node* x = assembler->Parameter(1); |
| 2293 | Node* context = assembler->Parameter(4); |
| 2294 | Node* x_value = assembler->TruncateTaggedToFloat64(context, x); |
| 2295 | Node* value = assembler->Float64Atanh(x_value); |
| 2296 | Node* result = assembler->ChangeFloat64ToTagged(value); |
| 2297 | assembler->Return(result); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2298 | } |
| 2299 | |
| 2300 | namespace { |
| 2301 | |
| 2302 | void Generate_MathRoundingOperation( |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2303 | CodeStubAssembler* assembler, |
| 2304 | compiler::Node* (CodeStubAssembler::*float64op)(compiler::Node*)) { |
| 2305 | typedef CodeStubAssembler::Label Label; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2306 | typedef compiler::Node Node; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2307 | typedef CodeStubAssembler::Variable Variable; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2308 | |
| 2309 | Node* context = assembler->Parameter(4); |
| 2310 | |
| 2311 | // We might need to loop once for ToNumber conversion. |
| 2312 | Variable var_x(assembler, MachineRepresentation::kTagged); |
| 2313 | Label loop(assembler, &var_x); |
| 2314 | var_x.Bind(assembler->Parameter(1)); |
| 2315 | assembler->Goto(&loop); |
| 2316 | assembler->Bind(&loop); |
| 2317 | { |
| 2318 | // Load the current {x} value. |
| 2319 | Node* x = var_x.value(); |
| 2320 | |
| 2321 | // Check if {x} is a Smi or a HeapObject. |
| 2322 | Label if_xissmi(assembler), if_xisnotsmi(assembler); |
| 2323 | assembler->Branch(assembler->WordIsSmi(x), &if_xissmi, &if_xisnotsmi); |
| 2324 | |
| 2325 | assembler->Bind(&if_xissmi); |
| 2326 | { |
| 2327 | // Nothing to do when {x} is a Smi. |
| 2328 | assembler->Return(x); |
| 2329 | } |
| 2330 | |
| 2331 | assembler->Bind(&if_xisnotsmi); |
| 2332 | { |
| 2333 | // Check if {x} is a HeapNumber. |
| 2334 | Label if_xisheapnumber(assembler), |
| 2335 | if_xisnotheapnumber(assembler, Label::kDeferred); |
| 2336 | assembler->Branch( |
| 2337 | assembler->WordEqual(assembler->LoadMap(x), |
| 2338 | assembler->HeapNumberMapConstant()), |
| 2339 | &if_xisheapnumber, &if_xisnotheapnumber); |
| 2340 | |
| 2341 | assembler->Bind(&if_xisheapnumber); |
| 2342 | { |
| 2343 | Node* x_value = assembler->LoadHeapNumberValue(x); |
| 2344 | Node* value = (assembler->*float64op)(x_value); |
| 2345 | Node* result = assembler->ChangeFloat64ToTagged(value); |
| 2346 | assembler->Return(result); |
| 2347 | } |
| 2348 | |
| 2349 | assembler->Bind(&if_xisnotheapnumber); |
| 2350 | { |
| 2351 | // Need to convert {x} to a Number first. |
| 2352 | Callable callable = |
| 2353 | CodeFactory::NonNumberToNumber(assembler->isolate()); |
| 2354 | var_x.Bind(assembler->CallStub(callable, context, x)); |
| 2355 | assembler->Goto(&loop); |
| 2356 | } |
| 2357 | } |
| 2358 | } |
| 2359 | } |
| 2360 | |
| 2361 | } // namespace |
| 2362 | |
| 2363 | // ES6 section 20.2.2.10 Math.ceil ( x ) |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2364 | void Builtins::Generate_MathCeil(CodeStubAssembler* assembler) { |
| 2365 | Generate_MathRoundingOperation(assembler, &CodeStubAssembler::Float64Ceil); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2366 | } |
| 2367 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2368 | // ES6 section 20.2.2.9 Math.cbrt ( x ) |
| 2369 | void Builtins::Generate_MathCbrt(CodeStubAssembler* assembler) { |
| 2370 | using compiler::Node; |
| 2371 | |
| 2372 | Node* x = assembler->Parameter(1); |
| 2373 | Node* context = assembler->Parameter(4); |
| 2374 | Node* x_value = assembler->TruncateTaggedToFloat64(context, x); |
| 2375 | Node* value = assembler->Float64Cbrt(x_value); |
| 2376 | Node* result = assembler->ChangeFloat64ToTagged(value); |
| 2377 | assembler->Return(result); |
| 2378 | } |
| 2379 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2380 | // ES6 section 20.2.2.11 Math.clz32 ( x ) |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2381 | void Builtins::Generate_MathClz32(CodeStubAssembler* assembler) { |
| 2382 | typedef CodeStubAssembler::Label Label; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2383 | typedef compiler::Node Node; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2384 | typedef CodeStubAssembler::Variable Variable; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2385 | |
| 2386 | Node* context = assembler->Parameter(4); |
| 2387 | |
| 2388 | // Shared entry point for the clz32 operation. |
| 2389 | Variable var_clz32_x(assembler, MachineRepresentation::kWord32); |
| 2390 | Label do_clz32(assembler); |
| 2391 | |
| 2392 | // We might need to loop once for ToNumber conversion. |
| 2393 | Variable var_x(assembler, MachineRepresentation::kTagged); |
| 2394 | Label loop(assembler, &var_x); |
| 2395 | var_x.Bind(assembler->Parameter(1)); |
| 2396 | assembler->Goto(&loop); |
| 2397 | assembler->Bind(&loop); |
| 2398 | { |
| 2399 | // Load the current {x} value. |
| 2400 | Node* x = var_x.value(); |
| 2401 | |
| 2402 | // Check if {x} is a Smi or a HeapObject. |
| 2403 | Label if_xissmi(assembler), if_xisnotsmi(assembler); |
| 2404 | assembler->Branch(assembler->WordIsSmi(x), &if_xissmi, &if_xisnotsmi); |
| 2405 | |
| 2406 | assembler->Bind(&if_xissmi); |
| 2407 | { |
| 2408 | var_clz32_x.Bind(assembler->SmiToWord32(x)); |
| 2409 | assembler->Goto(&do_clz32); |
| 2410 | } |
| 2411 | |
| 2412 | assembler->Bind(&if_xisnotsmi); |
| 2413 | { |
| 2414 | // Check if {x} is a HeapNumber. |
| 2415 | Label if_xisheapnumber(assembler), |
| 2416 | if_xisnotheapnumber(assembler, Label::kDeferred); |
| 2417 | assembler->Branch( |
| 2418 | assembler->WordEqual(assembler->LoadMap(x), |
| 2419 | assembler->HeapNumberMapConstant()), |
| 2420 | &if_xisheapnumber, &if_xisnotheapnumber); |
| 2421 | |
| 2422 | assembler->Bind(&if_xisheapnumber); |
| 2423 | { |
| 2424 | var_clz32_x.Bind(assembler->TruncateHeapNumberValueToWord32(x)); |
| 2425 | assembler->Goto(&do_clz32); |
| 2426 | } |
| 2427 | |
| 2428 | assembler->Bind(&if_xisnotheapnumber); |
| 2429 | { |
| 2430 | // Need to convert {x} to a Number first. |
| 2431 | Callable callable = |
| 2432 | CodeFactory::NonNumberToNumber(assembler->isolate()); |
| 2433 | var_x.Bind(assembler->CallStub(callable, context, x)); |
| 2434 | assembler->Goto(&loop); |
| 2435 | } |
| 2436 | } |
| 2437 | } |
| 2438 | |
| 2439 | assembler->Bind(&do_clz32); |
| 2440 | { |
| 2441 | Node* x_value = var_clz32_x.value(); |
| 2442 | Node* value = assembler->Word32Clz(x_value); |
| 2443 | Node* result = assembler->ChangeInt32ToTagged(value); |
| 2444 | assembler->Return(result); |
| 2445 | } |
| 2446 | } |
| 2447 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2448 | // ES6 section 20.2.2.12 Math.cos ( x ) |
| 2449 | void Builtins::Generate_MathCos(CodeStubAssembler* assembler) { |
| 2450 | using compiler::Node; |
| 2451 | |
| 2452 | Node* x = assembler->Parameter(1); |
| 2453 | Node* context = assembler->Parameter(4); |
| 2454 | Node* x_value = assembler->TruncateTaggedToFloat64(context, x); |
| 2455 | Node* value = assembler->Float64Cos(x_value); |
| 2456 | Node* result = assembler->ChangeFloat64ToTagged(value); |
| 2457 | assembler->Return(result); |
| 2458 | } |
| 2459 | |
| 2460 | // ES6 section 20.2.2.14 Math.exp ( x ) |
| 2461 | void Builtins::Generate_MathExp(CodeStubAssembler* assembler) { |
| 2462 | using compiler::Node; |
| 2463 | |
| 2464 | Node* x = assembler->Parameter(1); |
| 2465 | Node* context = assembler->Parameter(4); |
| 2466 | Node* x_value = assembler->TruncateTaggedToFloat64(context, x); |
| 2467 | Node* value = assembler->Float64Exp(x_value); |
| 2468 | Node* result = assembler->ChangeFloat64ToTagged(value); |
| 2469 | assembler->Return(result); |
| 2470 | } |
| 2471 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2472 | // ES6 section 20.2.2.16 Math.floor ( x ) |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2473 | void Builtins::Generate_MathFloor(CodeStubAssembler* assembler) { |
| 2474 | Generate_MathRoundingOperation(assembler, &CodeStubAssembler::Float64Floor); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2475 | } |
| 2476 | |
| 2477 | // ES6 section 20.2.2.17 Math.fround ( x ) |
| 2478 | BUILTIN(MathFround) { |
| 2479 | HandleScope scope(isolate); |
| 2480 | DCHECK_EQ(2, args.length()); |
| 2481 | Handle<Object> x = args.at<Object>(1); |
| 2482 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, x, Object::ToNumber(x)); |
| 2483 | float x32 = DoubleToFloat32(x->Number()); |
| 2484 | return *isolate->factory()->NewNumber(x32); |
| 2485 | } |
| 2486 | |
| 2487 | // ES6 section 20.2.2.19 Math.imul ( x, y ) |
| 2488 | BUILTIN(MathImul) { |
| 2489 | HandleScope scope(isolate); |
| 2490 | DCHECK_EQ(3, args.length()); |
| 2491 | Handle<Object> x = args.at<Object>(1); |
| 2492 | Handle<Object> y = args.at<Object>(2); |
| 2493 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, x, Object::ToNumber(x)); |
| 2494 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, y, Object::ToNumber(y)); |
| 2495 | int product = static_cast<int>(NumberToUint32(*x) * NumberToUint32(*y)); |
| 2496 | return *isolate->factory()->NewNumberFromInt(product); |
| 2497 | } |
| 2498 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2499 | // ES6 section 20.2.2.20 Math.log ( x ) |
| 2500 | void Builtins::Generate_MathLog(CodeStubAssembler* assembler) { |
| 2501 | using compiler::Node; |
| 2502 | |
| 2503 | Node* x = assembler->Parameter(1); |
| 2504 | Node* context = assembler->Parameter(4); |
| 2505 | Node* x_value = assembler->TruncateTaggedToFloat64(context, x); |
| 2506 | Node* value = assembler->Float64Log(x_value); |
| 2507 | Node* result = assembler->ChangeFloat64ToTagged(value); |
| 2508 | assembler->Return(result); |
| 2509 | } |
| 2510 | |
| 2511 | // ES6 section 20.2.2.21 Math.log1p ( x ) |
| 2512 | void Builtins::Generate_MathLog1p(CodeStubAssembler* assembler) { |
| 2513 | using compiler::Node; |
| 2514 | |
| 2515 | Node* x = assembler->Parameter(1); |
| 2516 | Node* context = assembler->Parameter(4); |
| 2517 | Node* x_value = assembler->TruncateTaggedToFloat64(context, x); |
| 2518 | Node* value = assembler->Float64Log1p(x_value); |
| 2519 | Node* result = assembler->ChangeFloat64ToTagged(value); |
| 2520 | assembler->Return(result); |
| 2521 | } |
| 2522 | |
| 2523 | // ES6 section 20.2.2.23 Math.log2 ( x ) |
| 2524 | void Builtins::Generate_MathLog2(CodeStubAssembler* assembler) { |
| 2525 | using compiler::Node; |
| 2526 | |
| 2527 | Node* x = assembler->Parameter(1); |
| 2528 | Node* context = assembler->Parameter(4); |
| 2529 | Node* x_value = assembler->TruncateTaggedToFloat64(context, x); |
| 2530 | Node* value = assembler->Float64Log2(x_value); |
| 2531 | Node* result = assembler->ChangeFloat64ToTagged(value); |
| 2532 | assembler->Return(result); |
| 2533 | } |
| 2534 | |
| 2535 | // ES6 section 20.2.2.22 Math.log10 ( x ) |
| 2536 | void Builtins::Generate_MathLog10(CodeStubAssembler* assembler) { |
| 2537 | using compiler::Node; |
| 2538 | |
| 2539 | Node* x = assembler->Parameter(1); |
| 2540 | Node* context = assembler->Parameter(4); |
| 2541 | Node* x_value = assembler->TruncateTaggedToFloat64(context, x); |
| 2542 | Node* value = assembler->Float64Log10(x_value); |
| 2543 | Node* result = assembler->ChangeFloat64ToTagged(value); |
| 2544 | assembler->Return(result); |
| 2545 | } |
| 2546 | |
| 2547 | // ES6 section 20.2.2.15 Math.expm1 ( x ) |
| 2548 | void Builtins::Generate_MathExpm1(CodeStubAssembler* assembler) { |
| 2549 | using compiler::Node; |
| 2550 | |
| 2551 | Node* x = assembler->Parameter(1); |
| 2552 | Node* context = assembler->Parameter(4); |
| 2553 | Node* x_value = assembler->TruncateTaggedToFloat64(context, x); |
| 2554 | Node* value = assembler->Float64Expm1(x_value); |
| 2555 | Node* result = assembler->ChangeFloat64ToTagged(value); |
| 2556 | assembler->Return(result); |
| 2557 | } |
| 2558 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2559 | // ES6 section 20.2.2.28 Math.round ( x ) |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2560 | void Builtins::Generate_MathRound(CodeStubAssembler* assembler) { |
| 2561 | Generate_MathRoundingOperation(assembler, &CodeStubAssembler::Float64Round); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2562 | } |
| 2563 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2564 | // ES6 section 20.2.2.30 Math.sin ( x ) |
| 2565 | void Builtins::Generate_MathSin(CodeStubAssembler* assembler) { |
| 2566 | using compiler::Node; |
| 2567 | |
| 2568 | Node* x = assembler->Parameter(1); |
| 2569 | Node* context = assembler->Parameter(4); |
| 2570 | Node* x_value = assembler->TruncateTaggedToFloat64(context, x); |
| 2571 | Node* value = assembler->Float64Sin(x_value); |
| 2572 | Node* result = assembler->ChangeFloat64ToTagged(value); |
| 2573 | assembler->Return(result); |
| 2574 | } |
| 2575 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2576 | // ES6 section 20.2.2.32 Math.sqrt ( x ) |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2577 | void Builtins::Generate_MathSqrt(CodeStubAssembler* assembler) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2578 | using compiler::Node; |
| 2579 | |
| 2580 | Node* x = assembler->Parameter(1); |
| 2581 | Node* context = assembler->Parameter(4); |
| 2582 | Node* x_value = assembler->TruncateTaggedToFloat64(context, x); |
| 2583 | Node* value = assembler->Float64Sqrt(x_value); |
| 2584 | Node* result = assembler->ChangeFloat64ToTagged(value); |
| 2585 | assembler->Return(result); |
| 2586 | } |
| 2587 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2588 | // ES6 section 20.2.2.33 Math.tan ( x ) |
| 2589 | void Builtins::Generate_MathTan(CodeStubAssembler* assembler) { |
| 2590 | using compiler::Node; |
| 2591 | |
| 2592 | Node* x = assembler->Parameter(1); |
| 2593 | Node* context = assembler->Parameter(4); |
| 2594 | Node* x_value = assembler->TruncateTaggedToFloat64(context, x); |
| 2595 | Node* value = assembler->Float64Tan(x_value); |
| 2596 | Node* result = assembler->ChangeFloat64ToTagged(value); |
| 2597 | assembler->Return(result); |
| 2598 | } |
| 2599 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2600 | // ES6 section 20.2.2.35 Math.trunc ( x ) |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 2601 | void Builtins::Generate_MathTrunc(CodeStubAssembler* assembler) { |
| 2602 | Generate_MathRoundingOperation(assembler, &CodeStubAssembler::Float64Trunc); |
| 2603 | } |
| 2604 | |
| 2605 | // ----------------------------------------------------------------------------- |
| 2606 | // ES6 section 19.2 Function Objects |
| 2607 | |
| 2608 | // ES6 section 19.2.3.6 Function.prototype [ @@hasInstance ] ( V ) |
| 2609 | void Builtins::Generate_FunctionPrototypeHasInstance( |
| 2610 | CodeStubAssembler* assembler) { |
| 2611 | using compiler::Node; |
| 2612 | |
| 2613 | Node* f = assembler->Parameter(0); |
| 2614 | Node* v = assembler->Parameter(1); |
| 2615 | Node* context = assembler->Parameter(4); |
| 2616 | Node* result = assembler->OrdinaryHasInstance(context, f, v); |
| 2617 | assembler->Return(result); |
| 2618 | } |
| 2619 | |
| 2620 | // ----------------------------------------------------------------------------- |
| 2621 | // ES6 section 25.3 Generator Objects |
| 2622 | |
| 2623 | namespace { |
| 2624 | |
| 2625 | void Generate_GeneratorPrototypeResume( |
| 2626 | CodeStubAssembler* assembler, JSGeneratorObject::ResumeMode resume_mode, |
| 2627 | char const* const method_name) { |
| 2628 | typedef CodeStubAssembler::Label Label; |
| 2629 | typedef compiler::Node Node; |
| 2630 | |
| 2631 | Node* receiver = assembler->Parameter(0); |
| 2632 | Node* value = assembler->Parameter(1); |
| 2633 | Node* context = assembler->Parameter(4); |
| 2634 | Node* closed = assembler->SmiConstant( |
| 2635 | Smi::FromInt(JSGeneratorObject::kGeneratorClosed)); |
| 2636 | |
| 2637 | // Check if the {receiver} is actually a JSGeneratorObject. |
| 2638 | Label if_receiverisincompatible(assembler, Label::kDeferred); |
| 2639 | assembler->GotoIf(assembler->WordIsSmi(receiver), &if_receiverisincompatible); |
| 2640 | Node* receiver_instance_type = assembler->LoadInstanceType(receiver); |
| 2641 | assembler->GotoUnless(assembler->Word32Equal( |
| 2642 | receiver_instance_type, |
| 2643 | assembler->Int32Constant(JS_GENERATOR_OBJECT_TYPE)), |
| 2644 | &if_receiverisincompatible); |
| 2645 | |
| 2646 | // Check if the {receiver} is running or already closed. |
| 2647 | Node* receiver_continuation = assembler->LoadObjectField( |
| 2648 | receiver, JSGeneratorObject::kContinuationOffset); |
| 2649 | Label if_receiverisclosed(assembler, Label::kDeferred), |
| 2650 | if_receiverisrunning(assembler, Label::kDeferred); |
| 2651 | assembler->GotoIf(assembler->SmiEqual(receiver_continuation, closed), |
| 2652 | &if_receiverisclosed); |
| 2653 | DCHECK_LT(JSGeneratorObject::kGeneratorExecuting, |
| 2654 | JSGeneratorObject::kGeneratorClosed); |
| 2655 | assembler->GotoIf(assembler->SmiLessThan(receiver_continuation, closed), |
| 2656 | &if_receiverisrunning); |
| 2657 | |
| 2658 | // Resume the {receiver} using our trampoline. |
| 2659 | Node* result = assembler->CallStub( |
| 2660 | CodeFactory::ResumeGenerator(assembler->isolate()), context, value, |
| 2661 | receiver, assembler->SmiConstant(Smi::FromInt(resume_mode))); |
| 2662 | assembler->Return(result); |
| 2663 | |
| 2664 | assembler->Bind(&if_receiverisincompatible); |
| 2665 | { |
| 2666 | // The {receiver} is not a valid JSGeneratorObject. |
| 2667 | Node* result = assembler->CallRuntime( |
| 2668 | Runtime::kThrowIncompatibleMethodReceiver, context, |
| 2669 | assembler->HeapConstant(assembler->factory()->NewStringFromAsciiChecked( |
| 2670 | method_name, TENURED)), |
| 2671 | receiver); |
| 2672 | assembler->Return(result); // Never reached. |
| 2673 | } |
| 2674 | |
| 2675 | assembler->Bind(&if_receiverisclosed); |
| 2676 | { |
| 2677 | // The {receiver} is closed already. |
| 2678 | Node* result = nullptr; |
| 2679 | switch (resume_mode) { |
| 2680 | case JSGeneratorObject::kNext: |
| 2681 | result = assembler->CallRuntime(Runtime::kCreateIterResultObject, |
| 2682 | context, assembler->UndefinedConstant(), |
| 2683 | assembler->BooleanConstant(true)); |
| 2684 | break; |
| 2685 | case JSGeneratorObject::kReturn: |
| 2686 | result = |
| 2687 | assembler->CallRuntime(Runtime::kCreateIterResultObject, context, |
| 2688 | value, assembler->BooleanConstant(true)); |
| 2689 | break; |
| 2690 | case JSGeneratorObject::kThrow: |
| 2691 | result = assembler->CallRuntime(Runtime::kThrow, context, value); |
| 2692 | break; |
| 2693 | } |
| 2694 | assembler->Return(result); |
| 2695 | } |
| 2696 | |
| 2697 | assembler->Bind(&if_receiverisrunning); |
| 2698 | { |
| 2699 | Node* result = |
| 2700 | assembler->CallRuntime(Runtime::kThrowGeneratorRunning, context); |
| 2701 | assembler->Return(result); // Never reached. |
| 2702 | } |
| 2703 | } |
| 2704 | |
| 2705 | } // namespace |
| 2706 | |
| 2707 | // ES6 section 25.3.1.2 Generator.prototype.next ( value ) |
| 2708 | void Builtins::Generate_GeneratorPrototypeNext(CodeStubAssembler* assembler) { |
| 2709 | Generate_GeneratorPrototypeResume(assembler, JSGeneratorObject::kNext, |
| 2710 | "[Generator].prototype.next"); |
| 2711 | } |
| 2712 | |
| 2713 | // ES6 section 25.3.1.3 Generator.prototype.return ( value ) |
| 2714 | void Builtins::Generate_GeneratorPrototypeReturn(CodeStubAssembler* assembler) { |
| 2715 | Generate_GeneratorPrototypeResume(assembler, JSGeneratorObject::kReturn, |
| 2716 | "[Generator].prototype.return"); |
| 2717 | } |
| 2718 | |
| 2719 | // ES6 section 25.3.1.4 Generator.prototype.throw ( exception ) |
| 2720 | void Builtins::Generate_GeneratorPrototypeThrow(CodeStubAssembler* assembler) { |
| 2721 | Generate_GeneratorPrototypeResume(assembler, JSGeneratorObject::kThrow, |
| 2722 | "[Generator].prototype.throw"); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 2723 | } |
| 2724 | |
| 2725 | // ----------------------------------------------------------------------------- |
| 2726 | // ES6 section 26.1 The Reflect Object |
| 2727 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2728 | // ES6 section 26.1.3 Reflect.defineProperty |
| 2729 | BUILTIN(ReflectDefineProperty) { |
| 2730 | HandleScope scope(isolate); |
| 2731 | DCHECK_EQ(4, args.length()); |
| 2732 | Handle<Object> target = args.at<Object>(1); |
| 2733 | Handle<Object> key = args.at<Object>(2); |
| 2734 | Handle<Object> attributes = args.at<Object>(3); |
| 2735 | |
| 2736 | if (!target->IsJSReceiver()) { |
| 2737 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 2738 | isolate, NewTypeError(MessageTemplate::kCalledOnNonObject, |
| 2739 | isolate->factory()->NewStringFromAsciiChecked( |
| 2740 | "Reflect.defineProperty"))); |
| 2741 | } |
| 2742 | |
| 2743 | Handle<Name> name; |
| 2744 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, name, |
| 2745 | Object::ToName(isolate, key)); |
| 2746 | |
| 2747 | PropertyDescriptor desc; |
| 2748 | if (!PropertyDescriptor::ToPropertyDescriptor(isolate, attributes, &desc)) { |
| 2749 | return isolate->heap()->exception(); |
| 2750 | } |
| 2751 | |
| 2752 | Maybe<bool> result = |
| 2753 | JSReceiver::DefineOwnProperty(isolate, Handle<JSReceiver>::cast(target), |
| 2754 | name, &desc, Object::DONT_THROW); |
| 2755 | MAYBE_RETURN(result, isolate->heap()->exception()); |
| 2756 | return *isolate->factory()->ToBoolean(result.FromJust()); |
| 2757 | } |
| 2758 | |
| 2759 | |
| 2760 | // ES6 section 26.1.4 Reflect.deleteProperty |
| 2761 | BUILTIN(ReflectDeleteProperty) { |
| 2762 | HandleScope scope(isolate); |
| 2763 | DCHECK_EQ(3, args.length()); |
| 2764 | Handle<Object> target = args.at<Object>(1); |
| 2765 | Handle<Object> key = args.at<Object>(2); |
| 2766 | |
| 2767 | if (!target->IsJSReceiver()) { |
| 2768 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 2769 | isolate, NewTypeError(MessageTemplate::kCalledOnNonObject, |
| 2770 | isolate->factory()->NewStringFromAsciiChecked( |
| 2771 | "Reflect.deleteProperty"))); |
| 2772 | } |
| 2773 | |
| 2774 | Handle<Name> name; |
| 2775 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, name, |
| 2776 | Object::ToName(isolate, key)); |
| 2777 | |
| 2778 | Maybe<bool> result = JSReceiver::DeletePropertyOrElement( |
| 2779 | Handle<JSReceiver>::cast(target), name, SLOPPY); |
| 2780 | MAYBE_RETURN(result, isolate->heap()->exception()); |
| 2781 | return *isolate->factory()->ToBoolean(result.FromJust()); |
| 2782 | } |
| 2783 | |
| 2784 | |
| 2785 | // ES6 section 26.1.6 Reflect.get |
| 2786 | BUILTIN(ReflectGet) { |
| 2787 | HandleScope scope(isolate); |
| 2788 | Handle<Object> target = args.atOrUndefined(isolate, 1); |
| 2789 | Handle<Object> key = args.atOrUndefined(isolate, 2); |
| 2790 | Handle<Object> receiver = args.length() > 3 ? args.at<Object>(3) : target; |
| 2791 | |
| 2792 | if (!target->IsJSReceiver()) { |
| 2793 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 2794 | isolate, NewTypeError(MessageTemplate::kCalledOnNonObject, |
| 2795 | isolate->factory()->NewStringFromAsciiChecked( |
| 2796 | "Reflect.get"))); |
| 2797 | } |
| 2798 | |
| 2799 | Handle<Name> name; |
| 2800 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, name, |
| 2801 | Object::ToName(isolate, key)); |
| 2802 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2803 | RETURN_RESULT_OR_FAILURE( |
| 2804 | isolate, Object::GetPropertyOrElement(receiver, name, |
| 2805 | Handle<JSReceiver>::cast(target))); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2806 | } |
| 2807 | |
| 2808 | |
| 2809 | // ES6 section 26.1.7 Reflect.getOwnPropertyDescriptor |
| 2810 | BUILTIN(ReflectGetOwnPropertyDescriptor) { |
| 2811 | HandleScope scope(isolate); |
| 2812 | DCHECK_EQ(3, args.length()); |
| 2813 | Handle<Object> target = args.at<Object>(1); |
| 2814 | Handle<Object> key = args.at<Object>(2); |
| 2815 | |
| 2816 | if (!target->IsJSReceiver()) { |
| 2817 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 2818 | isolate, NewTypeError(MessageTemplate::kCalledOnNonObject, |
| 2819 | isolate->factory()->NewStringFromAsciiChecked( |
| 2820 | "Reflect.getOwnPropertyDescriptor"))); |
| 2821 | } |
| 2822 | |
| 2823 | Handle<Name> name; |
| 2824 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, name, |
| 2825 | Object::ToName(isolate, key)); |
| 2826 | |
| 2827 | PropertyDescriptor desc; |
| 2828 | Maybe<bool> found = JSReceiver::GetOwnPropertyDescriptor( |
| 2829 | isolate, Handle<JSReceiver>::cast(target), name, &desc); |
| 2830 | MAYBE_RETURN(found, isolate->heap()->exception()); |
| 2831 | if (!found.FromJust()) return isolate->heap()->undefined_value(); |
| 2832 | return *desc.ToObject(isolate); |
| 2833 | } |
| 2834 | |
| 2835 | |
| 2836 | // ES6 section 26.1.8 Reflect.getPrototypeOf |
| 2837 | BUILTIN(ReflectGetPrototypeOf) { |
| 2838 | HandleScope scope(isolate); |
| 2839 | DCHECK_EQ(2, args.length()); |
| 2840 | Handle<Object> target = args.at<Object>(1); |
| 2841 | |
| 2842 | if (!target->IsJSReceiver()) { |
| 2843 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 2844 | isolate, NewTypeError(MessageTemplate::kCalledOnNonObject, |
| 2845 | isolate->factory()->NewStringFromAsciiChecked( |
| 2846 | "Reflect.getPrototypeOf"))); |
| 2847 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2848 | Handle<JSReceiver> receiver = Handle<JSReceiver>::cast(target); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2849 | RETURN_RESULT_OR_FAILURE(isolate, |
| 2850 | JSReceiver::GetPrototype(isolate, receiver)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2851 | } |
| 2852 | |
| 2853 | |
| 2854 | // ES6 section 26.1.9 Reflect.has |
| 2855 | BUILTIN(ReflectHas) { |
| 2856 | HandleScope scope(isolate); |
| 2857 | DCHECK_EQ(3, args.length()); |
| 2858 | Handle<Object> target = args.at<Object>(1); |
| 2859 | Handle<Object> key = args.at<Object>(2); |
| 2860 | |
| 2861 | if (!target->IsJSReceiver()) { |
| 2862 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 2863 | isolate, NewTypeError(MessageTemplate::kCalledOnNonObject, |
| 2864 | isolate->factory()->NewStringFromAsciiChecked( |
| 2865 | "Reflect.has"))); |
| 2866 | } |
| 2867 | |
| 2868 | Handle<Name> name; |
| 2869 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, name, |
| 2870 | Object::ToName(isolate, key)); |
| 2871 | |
| 2872 | Maybe<bool> result = |
| 2873 | JSReceiver::HasProperty(Handle<JSReceiver>::cast(target), name); |
| 2874 | return result.IsJust() ? *isolate->factory()->ToBoolean(result.FromJust()) |
| 2875 | : isolate->heap()->exception(); |
| 2876 | } |
| 2877 | |
| 2878 | |
| 2879 | // ES6 section 26.1.10 Reflect.isExtensible |
| 2880 | BUILTIN(ReflectIsExtensible) { |
| 2881 | HandleScope scope(isolate); |
| 2882 | DCHECK_EQ(2, args.length()); |
| 2883 | Handle<Object> target = args.at<Object>(1); |
| 2884 | |
| 2885 | if (!target->IsJSReceiver()) { |
| 2886 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 2887 | isolate, NewTypeError(MessageTemplate::kCalledOnNonObject, |
| 2888 | isolate->factory()->NewStringFromAsciiChecked( |
| 2889 | "Reflect.isExtensible"))); |
| 2890 | } |
| 2891 | |
| 2892 | Maybe<bool> result = |
| 2893 | JSReceiver::IsExtensible(Handle<JSReceiver>::cast(target)); |
| 2894 | MAYBE_RETURN(result, isolate->heap()->exception()); |
| 2895 | return *isolate->factory()->ToBoolean(result.FromJust()); |
| 2896 | } |
| 2897 | |
| 2898 | |
| 2899 | // ES6 section 26.1.11 Reflect.ownKeys |
| 2900 | BUILTIN(ReflectOwnKeys) { |
| 2901 | HandleScope scope(isolate); |
| 2902 | DCHECK_EQ(2, args.length()); |
| 2903 | Handle<Object> target = args.at<Object>(1); |
| 2904 | |
| 2905 | if (!target->IsJSReceiver()) { |
| 2906 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 2907 | isolate, NewTypeError(MessageTemplate::kCalledOnNonObject, |
| 2908 | isolate->factory()->NewStringFromAsciiChecked( |
| 2909 | "Reflect.ownKeys"))); |
| 2910 | } |
| 2911 | |
| 2912 | Handle<FixedArray> keys; |
| 2913 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2914 | isolate, keys, |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2915 | KeyAccumulator::GetKeys(Handle<JSReceiver>::cast(target), |
| 2916 | KeyCollectionMode::kOwnOnly, ALL_PROPERTIES, |
| 2917 | GetKeysConversion::kConvertToString)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2918 | return *isolate->factory()->NewJSArrayWithElements(keys); |
| 2919 | } |
| 2920 | |
| 2921 | |
| 2922 | // ES6 section 26.1.12 Reflect.preventExtensions |
| 2923 | BUILTIN(ReflectPreventExtensions) { |
| 2924 | HandleScope scope(isolate); |
| 2925 | DCHECK_EQ(2, args.length()); |
| 2926 | Handle<Object> target = args.at<Object>(1); |
| 2927 | |
| 2928 | if (!target->IsJSReceiver()) { |
| 2929 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 2930 | isolate, NewTypeError(MessageTemplate::kCalledOnNonObject, |
| 2931 | isolate->factory()->NewStringFromAsciiChecked( |
| 2932 | "Reflect.preventExtensions"))); |
| 2933 | } |
| 2934 | |
| 2935 | Maybe<bool> result = JSReceiver::PreventExtensions( |
| 2936 | Handle<JSReceiver>::cast(target), Object::DONT_THROW); |
| 2937 | MAYBE_RETURN(result, isolate->heap()->exception()); |
| 2938 | return *isolate->factory()->ToBoolean(result.FromJust()); |
| 2939 | } |
| 2940 | |
| 2941 | |
| 2942 | // ES6 section 26.1.13 Reflect.set |
| 2943 | BUILTIN(ReflectSet) { |
| 2944 | HandleScope scope(isolate); |
| 2945 | Handle<Object> target = args.atOrUndefined(isolate, 1); |
| 2946 | Handle<Object> key = args.atOrUndefined(isolate, 2); |
| 2947 | Handle<Object> value = args.atOrUndefined(isolate, 3); |
| 2948 | Handle<Object> receiver = args.length() > 4 ? args.at<Object>(4) : target; |
| 2949 | |
| 2950 | if (!target->IsJSReceiver()) { |
| 2951 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 2952 | isolate, NewTypeError(MessageTemplate::kCalledOnNonObject, |
| 2953 | isolate->factory()->NewStringFromAsciiChecked( |
| 2954 | "Reflect.set"))); |
| 2955 | } |
| 2956 | |
| 2957 | Handle<Name> name; |
| 2958 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, name, |
| 2959 | Object::ToName(isolate, key)); |
| 2960 | |
| 2961 | LookupIterator it = LookupIterator::PropertyOrElement( |
| 2962 | isolate, receiver, name, Handle<JSReceiver>::cast(target)); |
| 2963 | Maybe<bool> result = Object::SetSuperProperty( |
| 2964 | &it, value, SLOPPY, Object::MAY_BE_STORE_FROM_KEYED); |
| 2965 | MAYBE_RETURN(result, isolate->heap()->exception()); |
| 2966 | return *isolate->factory()->ToBoolean(result.FromJust()); |
| 2967 | } |
| 2968 | |
| 2969 | |
| 2970 | // ES6 section 26.1.14 Reflect.setPrototypeOf |
| 2971 | BUILTIN(ReflectSetPrototypeOf) { |
| 2972 | HandleScope scope(isolate); |
| 2973 | DCHECK_EQ(3, args.length()); |
| 2974 | Handle<Object> target = args.at<Object>(1); |
| 2975 | Handle<Object> proto = args.at<Object>(2); |
| 2976 | |
| 2977 | if (!target->IsJSReceiver()) { |
| 2978 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 2979 | isolate, NewTypeError(MessageTemplate::kCalledOnNonObject, |
| 2980 | isolate->factory()->NewStringFromAsciiChecked( |
| 2981 | "Reflect.setPrototypeOf"))); |
| 2982 | } |
| 2983 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 2984 | if (!proto->IsJSReceiver() && !proto->IsNull(isolate)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 2985 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 2986 | isolate, NewTypeError(MessageTemplate::kProtoObjectOrNull, proto)); |
| 2987 | } |
| 2988 | |
| 2989 | Maybe<bool> result = JSReceiver::SetPrototype( |
| 2990 | Handle<JSReceiver>::cast(target), proto, true, Object::DONT_THROW); |
| 2991 | MAYBE_RETURN(result, isolate->heap()->exception()); |
| 2992 | return *isolate->factory()->ToBoolean(result.FromJust()); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 2993 | } |
| 2994 | |
| 2995 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2996 | // ----------------------------------------------------------------------------- |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 2997 | // ES6 section 19.3 Boolean Objects |
| 2998 | |
| 2999 | |
| 3000 | // ES6 section 19.3.1.1 Boolean ( value ) for the [[Call]] case. |
| 3001 | BUILTIN(BooleanConstructor) { |
| 3002 | HandleScope scope(isolate); |
| 3003 | Handle<Object> value = args.atOrUndefined(isolate, 1); |
| 3004 | return isolate->heap()->ToBoolean(value->BooleanValue()); |
| 3005 | } |
| 3006 | |
| 3007 | |
| 3008 | // ES6 section 19.3.1.1 Boolean ( value ) for the [[Construct]] case. |
| 3009 | BUILTIN(BooleanConstructor_ConstructStub) { |
| 3010 | HandleScope scope(isolate); |
| 3011 | Handle<Object> value = args.atOrUndefined(isolate, 1); |
| 3012 | Handle<JSFunction> target = args.target<JSFunction>(); |
| 3013 | Handle<JSReceiver> new_target = Handle<JSReceiver>::cast(args.new_target()); |
| 3014 | DCHECK(*target == target->native_context()->boolean_function()); |
| 3015 | Handle<JSObject> result; |
| 3016 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result, |
| 3017 | JSObject::New(target, new_target)); |
| 3018 | Handle<JSValue>::cast(result)->set_value( |
| 3019 | isolate->heap()->ToBoolean(value->BooleanValue())); |
| 3020 | return *result; |
| 3021 | } |
| 3022 | |
| 3023 | |
| 3024 | // ES6 section 19.3.3.2 Boolean.prototype.toString ( ) |
| 3025 | BUILTIN(BooleanPrototypeToString) { |
| 3026 | HandleScope scope(isolate); |
| 3027 | Handle<Object> receiver = args.receiver(); |
| 3028 | if (receiver->IsJSValue()) { |
| 3029 | receiver = handle(Handle<JSValue>::cast(receiver)->value(), isolate); |
| 3030 | } |
| 3031 | if (!receiver->IsBoolean()) { |
| 3032 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 3033 | isolate, NewTypeError(MessageTemplate::kNotGeneric, |
| 3034 | isolate->factory()->NewStringFromAsciiChecked( |
| 3035 | "Boolean.prototype.toString"))); |
| 3036 | } |
| 3037 | return Handle<Oddball>::cast(receiver)->to_string(); |
| 3038 | } |
| 3039 | |
| 3040 | |
| 3041 | // ES6 section 19.3.3.3 Boolean.prototype.valueOf ( ) |
| 3042 | BUILTIN(BooleanPrototypeValueOf) { |
| 3043 | HandleScope scope(isolate); |
| 3044 | Handle<Object> receiver = args.receiver(); |
| 3045 | if (receiver->IsJSValue()) { |
| 3046 | receiver = handle(Handle<JSValue>::cast(receiver)->value(), isolate); |
| 3047 | } |
| 3048 | if (!receiver->IsBoolean()) { |
| 3049 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 3050 | isolate, NewTypeError(MessageTemplate::kNotGeneric, |
| 3051 | isolate->factory()->NewStringFromAsciiChecked( |
| 3052 | "Boolean.prototype.valueOf"))); |
| 3053 | } |
| 3054 | return *receiver; |
| 3055 | } |
| 3056 | |
| 3057 | |
| 3058 | // ----------------------------------------------------------------------------- |
| 3059 | // ES6 section 24.2 DataView Objects |
| 3060 | |
| 3061 | |
| 3062 | // ES6 section 24.2.2 The DataView Constructor for the [[Call]] case. |
| 3063 | BUILTIN(DataViewConstructor) { |
| 3064 | HandleScope scope(isolate); |
| 3065 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 3066 | isolate, |
| 3067 | NewTypeError(MessageTemplate::kConstructorNotFunction, |
| 3068 | isolate->factory()->NewStringFromAsciiChecked("DataView"))); |
| 3069 | } |
| 3070 | |
| 3071 | |
| 3072 | // ES6 section 24.2.2 The DataView Constructor for the [[Construct]] case. |
| 3073 | BUILTIN(DataViewConstructor_ConstructStub) { |
| 3074 | HandleScope scope(isolate); |
| 3075 | Handle<JSFunction> target = args.target<JSFunction>(); |
| 3076 | Handle<JSReceiver> new_target = Handle<JSReceiver>::cast(args.new_target()); |
| 3077 | Handle<Object> buffer = args.atOrUndefined(isolate, 1); |
| 3078 | Handle<Object> byte_offset = args.atOrUndefined(isolate, 2); |
| 3079 | Handle<Object> byte_length = args.atOrUndefined(isolate, 3); |
| 3080 | |
| 3081 | // 2. If Type(buffer) is not Object, throw a TypeError exception. |
| 3082 | // 3. If buffer does not have an [[ArrayBufferData]] internal slot, throw a |
| 3083 | // TypeError exception. |
| 3084 | if (!buffer->IsJSArrayBuffer()) { |
| 3085 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 3086 | isolate, NewTypeError(MessageTemplate::kDataViewNotArrayBuffer)); |
| 3087 | } |
| 3088 | Handle<JSArrayBuffer> array_buffer = Handle<JSArrayBuffer>::cast(buffer); |
| 3089 | |
| 3090 | // 4. Let numberOffset be ? ToNumber(byteOffset). |
| 3091 | Handle<Object> number_offset; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3092 | if (byte_offset->IsUndefined(isolate)) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 3093 | // We intentionally violate the specification at this point to allow |
| 3094 | // for new DataView(buffer) invocations to be equivalent to the full |
| 3095 | // new DataView(buffer, 0) invocation. |
| 3096 | number_offset = handle(Smi::FromInt(0), isolate); |
| 3097 | } else { |
| 3098 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, number_offset, |
| 3099 | Object::ToNumber(byte_offset)); |
| 3100 | } |
| 3101 | |
| 3102 | // 5. Let offset be ToInteger(numberOffset). |
| 3103 | Handle<Object> offset; |
| 3104 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, offset, |
| 3105 | Object::ToInteger(isolate, number_offset)); |
| 3106 | |
| 3107 | // 6. If numberOffset ≠offset or offset < 0, throw a RangeError exception. |
| 3108 | if (number_offset->Number() != offset->Number() || offset->Number() < 0.0) { |
| 3109 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 3110 | isolate, NewRangeError(MessageTemplate::kInvalidDataViewOffset)); |
| 3111 | } |
| 3112 | |
| 3113 | // 7. If IsDetachedBuffer(buffer) is true, throw a TypeError exception. |
| 3114 | // We currently violate the specification at this point. |
| 3115 | |
| 3116 | // 8. Let bufferByteLength be the value of buffer's [[ArrayBufferByteLength]] |
| 3117 | // internal slot. |
| 3118 | double const buffer_byte_length = array_buffer->byte_length()->Number(); |
| 3119 | |
| 3120 | // 9. If offset > bufferByteLength, throw a RangeError exception |
| 3121 | if (offset->Number() > buffer_byte_length) { |
| 3122 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 3123 | isolate, NewRangeError(MessageTemplate::kInvalidDataViewOffset)); |
| 3124 | } |
| 3125 | |
| 3126 | Handle<Object> view_byte_length; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3127 | if (byte_length->IsUndefined(isolate)) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 3128 | // 10. If byteLength is undefined, then |
| 3129 | // a. Let viewByteLength be bufferByteLength - offset. |
| 3130 | view_byte_length = |
| 3131 | isolate->factory()->NewNumber(buffer_byte_length - offset->Number()); |
| 3132 | } else { |
| 3133 | // 11. Else, |
| 3134 | // a. Let viewByteLength be ? ToLength(byteLength). |
| 3135 | // b. If offset+viewByteLength > bufferByteLength, throw a RangeError |
| 3136 | // exception |
| 3137 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 3138 | isolate, view_byte_length, Object::ToLength(isolate, byte_length)); |
| 3139 | if (offset->Number() + view_byte_length->Number() > buffer_byte_length) { |
| 3140 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 3141 | isolate, NewRangeError(MessageTemplate::kInvalidDataViewLength)); |
| 3142 | } |
| 3143 | } |
| 3144 | |
| 3145 | // 12. Let O be ? OrdinaryCreateFromConstructor(NewTarget, |
| 3146 | // "%DataViewPrototype%", «[[DataView]], [[ViewedArrayBuffer]], |
| 3147 | // [[ByteLength]], [[ByteOffset]]»). |
| 3148 | // 13. Set O's [[DataView]] internal slot to true. |
| 3149 | Handle<JSObject> result; |
| 3150 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result, |
| 3151 | JSObject::New(target, new_target)); |
| 3152 | for (int i = 0; i < ArrayBufferView::kInternalFieldCount; ++i) { |
| 3153 | Handle<JSDataView>::cast(result)->SetInternalField(i, Smi::FromInt(0)); |
| 3154 | } |
| 3155 | |
| 3156 | // 14. Set O's [[ViewedArrayBuffer]] internal slot to buffer. |
| 3157 | Handle<JSDataView>::cast(result)->set_buffer(*array_buffer); |
| 3158 | |
| 3159 | // 15. Set O's [[ByteLength]] internal slot to viewByteLength. |
| 3160 | Handle<JSDataView>::cast(result)->set_byte_length(*view_byte_length); |
| 3161 | |
| 3162 | // 16. Set O's [[ByteOffset]] internal slot to offset. |
| 3163 | Handle<JSDataView>::cast(result)->set_byte_offset(*offset); |
| 3164 | |
| 3165 | // 17. Return O. |
| 3166 | return *result; |
| 3167 | } |
| 3168 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3169 | // ES6 section 24.2.4.1 get DataView.prototype.buffer |
| 3170 | BUILTIN(DataViewPrototypeGetBuffer) { |
| 3171 | HandleScope scope(isolate); |
| 3172 | CHECK_RECEIVER(JSDataView, data_view, "get DataView.prototype.buffer"); |
| 3173 | return data_view->buffer(); |
| 3174 | } |
| 3175 | |
| 3176 | // ES6 section 24.2.4.2 get DataView.prototype.byteLength |
| 3177 | BUILTIN(DataViewPrototypeGetByteLength) { |
| 3178 | HandleScope scope(isolate); |
| 3179 | CHECK_RECEIVER(JSDataView, data_view, "get DataView.prototype.byteLength"); |
| 3180 | // TODO(bmeurer): According to the ES6 spec, we should throw a TypeError |
| 3181 | // here if the JSArrayBuffer of the {data_view} was neutered. |
| 3182 | return data_view->byte_length(); |
| 3183 | } |
| 3184 | |
| 3185 | // ES6 section 24.2.4.3 get DataView.prototype.byteOffset |
| 3186 | BUILTIN(DataViewPrototypeGetByteOffset) { |
| 3187 | HandleScope scope(isolate); |
| 3188 | CHECK_RECEIVER(JSDataView, data_view, "get DataView.prototype.byteOffset"); |
| 3189 | // TODO(bmeurer): According to the ES6 spec, we should throw a TypeError |
| 3190 | // here if the JSArrayBuffer of the {data_view} was neutered. |
| 3191 | return data_view->byte_offset(); |
| 3192 | } |
| 3193 | |
| 3194 | // ----------------------------------------------------------------------------- |
| 3195 | // ES6 section 22.2 TypedArray Objects |
| 3196 | |
| 3197 | // ES6 section 22.2.3.1 get %TypedArray%.prototype.buffer |
| 3198 | BUILTIN(TypedArrayPrototypeBuffer) { |
| 3199 | HandleScope scope(isolate); |
| 3200 | CHECK_RECEIVER(JSTypedArray, typed_array, "get TypedArray.prototype.buffer"); |
| 3201 | return *typed_array->GetBuffer(); |
| 3202 | } |
| 3203 | |
| 3204 | namespace { |
| 3205 | |
| 3206 | void Generate_TypedArrayProtoypeGetter(CodeStubAssembler* assembler, |
| 3207 | const char* method_name, |
| 3208 | int object_offset) { |
| 3209 | typedef CodeStubAssembler::Label Label; |
| 3210 | typedef compiler::Node Node; |
| 3211 | |
| 3212 | Node* receiver = assembler->Parameter(0); |
| 3213 | Node* context = assembler->Parameter(3); |
| 3214 | |
| 3215 | // Check if the {receiver} is actually a JSTypedArray. |
| 3216 | Label if_receiverisincompatible(assembler, Label::kDeferred); |
| 3217 | assembler->GotoIf(assembler->WordIsSmi(receiver), &if_receiverisincompatible); |
| 3218 | Node* receiver_instance_type = assembler->LoadInstanceType(receiver); |
| 3219 | assembler->GotoUnless( |
| 3220 | assembler->Word32Equal(receiver_instance_type, |
| 3221 | assembler->Int32Constant(JS_TYPED_ARRAY_TYPE)), |
| 3222 | &if_receiverisincompatible); |
| 3223 | |
| 3224 | // Check if the {receiver}'s JSArrayBuffer was neutered. |
| 3225 | Node* receiver_buffer = |
| 3226 | assembler->LoadObjectField(receiver, JSTypedArray::kBufferOffset); |
| 3227 | Node* receiver_buffer_bit_field = assembler->LoadObjectField( |
| 3228 | receiver_buffer, JSArrayBuffer::kBitFieldOffset, MachineType::Uint32()); |
| 3229 | Label if_receiverisneutered(assembler, Label::kDeferred); |
| 3230 | assembler->GotoUnless( |
| 3231 | assembler->Word32Equal( |
| 3232 | assembler->Word32And( |
| 3233 | receiver_buffer_bit_field, |
| 3234 | assembler->Int32Constant(JSArrayBuffer::WasNeutered::kMask)), |
| 3235 | assembler->Int32Constant(0)), |
| 3236 | &if_receiverisneutered); |
| 3237 | assembler->Return(assembler->LoadObjectField(receiver, object_offset)); |
| 3238 | |
| 3239 | assembler->Bind(&if_receiverisneutered); |
| 3240 | { |
| 3241 | // The {receiver}s buffer was neutered, default to zero. |
| 3242 | assembler->Return(assembler->SmiConstant(0)); |
| 3243 | } |
| 3244 | |
| 3245 | assembler->Bind(&if_receiverisincompatible); |
| 3246 | { |
| 3247 | // The {receiver} is not a valid JSGeneratorObject. |
| 3248 | Node* result = assembler->CallRuntime( |
| 3249 | Runtime::kThrowIncompatibleMethodReceiver, context, |
| 3250 | assembler->HeapConstant(assembler->factory()->NewStringFromAsciiChecked( |
| 3251 | method_name, TENURED)), |
| 3252 | receiver); |
| 3253 | assembler->Return(result); // Never reached. |
| 3254 | } |
| 3255 | } |
| 3256 | |
| 3257 | } // namespace |
| 3258 | |
| 3259 | // ES6 section 22.2.3.2 get %TypedArray%.prototype.byteLength |
| 3260 | void Builtins::Generate_TypedArrayPrototypeByteLength( |
| 3261 | CodeStubAssembler* assembler) { |
| 3262 | Generate_TypedArrayProtoypeGetter(assembler, |
| 3263 | "get TypedArray.prototype.byteLength", |
| 3264 | JSTypedArray::kByteLengthOffset); |
| 3265 | } |
| 3266 | |
| 3267 | // ES6 section 22.2.3.3 get %TypedArray%.prototype.byteOffset |
| 3268 | void Builtins::Generate_TypedArrayPrototypeByteOffset( |
| 3269 | CodeStubAssembler* assembler) { |
| 3270 | Generate_TypedArrayProtoypeGetter(assembler, |
| 3271 | "get TypedArray.prototype.byteOffset", |
| 3272 | JSTypedArray::kByteOffsetOffset); |
| 3273 | } |
| 3274 | |
| 3275 | // ES6 section 22.2.3.18 get %TypedArray%.prototype.length |
| 3276 | void Builtins::Generate_TypedArrayPrototypeLength( |
| 3277 | CodeStubAssembler* assembler) { |
| 3278 | Generate_TypedArrayProtoypeGetter(assembler, |
| 3279 | "get TypedArray.prototype.length", |
| 3280 | JSTypedArray::kLengthOffset); |
| 3281 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 3282 | |
| 3283 | // ----------------------------------------------------------------------------- |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3284 | // ES6 section 20.3 Date Objects |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3285 | |
| 3286 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3287 | namespace { |
| 3288 | |
| 3289 | // ES6 section 20.3.1.1 Time Values and Time Range |
| 3290 | const double kMinYear = -1000000.0; |
| 3291 | const double kMaxYear = -kMinYear; |
| 3292 | const double kMinMonth = -10000000.0; |
| 3293 | const double kMaxMonth = -kMinMonth; |
| 3294 | |
| 3295 | |
| 3296 | // 20.3.1.2 Day Number and Time within Day |
| 3297 | const double kMsPerDay = 86400000.0; |
| 3298 | |
| 3299 | |
| 3300 | // ES6 section 20.3.1.11 Hours, Minutes, Second, and Milliseconds |
| 3301 | const double kMsPerSecond = 1000.0; |
| 3302 | const double kMsPerMinute = 60000.0; |
| 3303 | const double kMsPerHour = 3600000.0; |
| 3304 | |
| 3305 | |
| 3306 | // ES6 section 20.3.1.14 MakeDate (day, time) |
| 3307 | double MakeDate(double day, double time) { |
| 3308 | if (std::isfinite(day) && std::isfinite(time)) { |
| 3309 | return time + day * kMsPerDay; |
| 3310 | } |
| 3311 | return std::numeric_limits<double>::quiet_NaN(); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3312 | } |
| 3313 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3314 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3315 | // ES6 section 20.3.1.13 MakeDay (year, month, date) |
| 3316 | double MakeDay(double year, double month, double date) { |
| 3317 | if ((kMinYear <= year && year <= kMaxYear) && |
| 3318 | (kMinMonth <= month && month <= kMaxMonth) && std::isfinite(date)) { |
| 3319 | int y = FastD2I(year); |
| 3320 | int m = FastD2I(month); |
| 3321 | y += m / 12; |
| 3322 | m %= 12; |
| 3323 | if (m < 0) { |
| 3324 | m += 12; |
| 3325 | y -= 1; |
| 3326 | } |
| 3327 | DCHECK_LE(0, m); |
| 3328 | DCHECK_LT(m, 12); |
| 3329 | |
| 3330 | // kYearDelta is an arbitrary number such that: |
| 3331 | // a) kYearDelta = -1 (mod 400) |
| 3332 | // b) year + kYearDelta > 0 for years in the range defined by |
| 3333 | // ECMA 262 - 15.9.1.1, i.e. upto 100,000,000 days on either side of |
| 3334 | // Jan 1 1970. This is required so that we don't run into integer |
| 3335 | // division of negative numbers. |
| 3336 | // c) there shouldn't be an overflow for 32-bit integers in the following |
| 3337 | // operations. |
| 3338 | static const int kYearDelta = 399999; |
| 3339 | static const int kBaseDay = |
| 3340 | 365 * (1970 + kYearDelta) + (1970 + kYearDelta) / 4 - |
| 3341 | (1970 + kYearDelta) / 100 + (1970 + kYearDelta) / 400; |
| 3342 | int day_from_year = 365 * (y + kYearDelta) + (y + kYearDelta) / 4 - |
| 3343 | (y + kYearDelta) / 100 + (y + kYearDelta) / 400 - |
| 3344 | kBaseDay; |
| 3345 | if ((y % 4 != 0) || (y % 100 == 0 && y % 400 != 0)) { |
| 3346 | static const int kDayFromMonth[] = {0, 31, 59, 90, 120, 151, |
| 3347 | 181, 212, 243, 273, 304, 334}; |
| 3348 | day_from_year += kDayFromMonth[m]; |
| 3349 | } else { |
| 3350 | static const int kDayFromMonth[] = {0, 31, 60, 91, 121, 152, |
| 3351 | 182, 213, 244, 274, 305, 335}; |
| 3352 | day_from_year += kDayFromMonth[m]; |
| 3353 | } |
| 3354 | return static_cast<double>(day_from_year - 1) + date; |
| 3355 | } |
| 3356 | return std::numeric_limits<double>::quiet_NaN(); |
| 3357 | } |
| 3358 | |
| 3359 | |
| 3360 | // ES6 section 20.3.1.12 MakeTime (hour, min, sec, ms) |
| 3361 | double MakeTime(double hour, double min, double sec, double ms) { |
| 3362 | if (std::isfinite(hour) && std::isfinite(min) && std::isfinite(sec) && |
| 3363 | std::isfinite(ms)) { |
| 3364 | double const h = DoubleToInteger(hour); |
| 3365 | double const m = DoubleToInteger(min); |
| 3366 | double const s = DoubleToInteger(sec); |
| 3367 | double const milli = DoubleToInteger(ms); |
| 3368 | return h * kMsPerHour + m * kMsPerMinute + s * kMsPerSecond + milli; |
| 3369 | } |
| 3370 | return std::numeric_limits<double>::quiet_NaN(); |
| 3371 | } |
| 3372 | |
| 3373 | |
| 3374 | // ES6 section 20.3.1.15 TimeClip (time) |
| 3375 | double TimeClip(double time) { |
| 3376 | if (-DateCache::kMaxTimeInMs <= time && time <= DateCache::kMaxTimeInMs) { |
| 3377 | return DoubleToInteger(time) + 0.0; |
| 3378 | } |
| 3379 | return std::numeric_limits<double>::quiet_NaN(); |
| 3380 | } |
| 3381 | |
| 3382 | |
| 3383 | const char* kShortWeekDays[] = {"Sun", "Mon", "Tue", "Wed", |
| 3384 | "Thu", "Fri", "Sat"}; |
| 3385 | const char* kShortMonths[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", |
| 3386 | "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"}; |
| 3387 | |
| 3388 | |
| 3389 | // ES6 section 20.3.1.16 Date Time String Format |
| 3390 | double ParseDateTimeString(Handle<String> str) { |
| 3391 | Isolate* const isolate = str->GetIsolate(); |
| 3392 | str = String::Flatten(str); |
| 3393 | // TODO(bmeurer): Change DateParser to not use the FixedArray. |
| 3394 | Handle<FixedArray> tmp = |
| 3395 | isolate->factory()->NewFixedArray(DateParser::OUTPUT_SIZE); |
| 3396 | DisallowHeapAllocation no_gc; |
| 3397 | String::FlatContent str_content = str->GetFlatContent(); |
| 3398 | bool result; |
| 3399 | if (str_content.IsOneByte()) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3400 | result = DateParser::Parse(isolate, str_content.ToOneByteVector(), *tmp); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3401 | } else { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3402 | result = DateParser::Parse(isolate, str_content.ToUC16Vector(), *tmp); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3403 | } |
| 3404 | if (!result) return std::numeric_limits<double>::quiet_NaN(); |
| 3405 | double const day = MakeDay(tmp->get(0)->Number(), tmp->get(1)->Number(), |
| 3406 | tmp->get(2)->Number()); |
| 3407 | double const time = MakeTime(tmp->get(3)->Number(), tmp->get(4)->Number(), |
| 3408 | tmp->get(5)->Number(), tmp->get(6)->Number()); |
| 3409 | double date = MakeDate(day, time); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3410 | if (tmp->get(7)->IsNull(isolate)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3411 | if (!std::isnan(date)) { |
| 3412 | date = isolate->date_cache()->ToUTC(static_cast<int64_t>(date)); |
| 3413 | } |
| 3414 | } else { |
| 3415 | date -= tmp->get(7)->Number() * 1000.0; |
| 3416 | } |
| 3417 | return date; |
| 3418 | } |
| 3419 | |
| 3420 | |
| 3421 | enum ToDateStringMode { kDateOnly, kTimeOnly, kDateAndTime }; |
| 3422 | |
| 3423 | |
| 3424 | // ES6 section 20.3.4.41.1 ToDateString(tv) |
| 3425 | void ToDateString(double time_val, Vector<char> str, DateCache* date_cache, |
| 3426 | ToDateStringMode mode = kDateAndTime) { |
| 3427 | if (std::isnan(time_val)) { |
| 3428 | SNPrintF(str, "Invalid Date"); |
| 3429 | return; |
| 3430 | } |
| 3431 | int64_t time_ms = static_cast<int64_t>(time_val); |
| 3432 | int64_t local_time_ms = date_cache->ToLocal(time_ms); |
| 3433 | int year, month, day, weekday, hour, min, sec, ms; |
| 3434 | date_cache->BreakDownTime(local_time_ms, &year, &month, &day, &weekday, &hour, |
| 3435 | &min, &sec, &ms); |
| 3436 | int timezone_offset = -date_cache->TimezoneOffset(time_ms); |
| 3437 | int timezone_hour = std::abs(timezone_offset) / 60; |
| 3438 | int timezone_min = std::abs(timezone_offset) % 60; |
| 3439 | const char* local_timezone = date_cache->LocalTimezone(time_ms); |
| 3440 | switch (mode) { |
| 3441 | case kDateOnly: |
| 3442 | SNPrintF(str, "%s %s %02d %4d", kShortWeekDays[weekday], |
| 3443 | kShortMonths[month], day, year); |
| 3444 | return; |
| 3445 | case kTimeOnly: |
| 3446 | SNPrintF(str, "%02d:%02d:%02d GMT%c%02d%02d (%s)", hour, min, sec, |
| 3447 | (timezone_offset < 0) ? '-' : '+', timezone_hour, timezone_min, |
| 3448 | local_timezone); |
| 3449 | return; |
| 3450 | case kDateAndTime: |
| 3451 | SNPrintF(str, "%s %s %02d %4d %02d:%02d:%02d GMT%c%02d%02d (%s)", |
| 3452 | kShortWeekDays[weekday], kShortMonths[month], day, year, hour, |
| 3453 | min, sec, (timezone_offset < 0) ? '-' : '+', timezone_hour, |
| 3454 | timezone_min, local_timezone); |
| 3455 | return; |
| 3456 | } |
| 3457 | UNREACHABLE(); |
| 3458 | } |
| 3459 | |
| 3460 | |
| 3461 | Object* SetLocalDateValue(Handle<JSDate> date, double time_val) { |
| 3462 | if (time_val >= -DateCache::kMaxTimeBeforeUTCInMs && |
| 3463 | time_val <= DateCache::kMaxTimeBeforeUTCInMs) { |
| 3464 | Isolate* const isolate = date->GetIsolate(); |
| 3465 | time_val = isolate->date_cache()->ToUTC(static_cast<int64_t>(time_val)); |
| 3466 | } else { |
| 3467 | time_val = std::numeric_limits<double>::quiet_NaN(); |
| 3468 | } |
| 3469 | return *JSDate::SetValue(date, TimeClip(time_val)); |
| 3470 | } |
| 3471 | |
| 3472 | } // namespace |
| 3473 | |
| 3474 | |
| 3475 | // ES6 section 20.3.2 The Date Constructor for the [[Call]] case. |
| 3476 | BUILTIN(DateConstructor) { |
| 3477 | HandleScope scope(isolate); |
| 3478 | double const time_val = JSDate::CurrentTimeValue(isolate); |
| 3479 | char buffer[128]; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 3480 | ToDateString(time_val, ArrayVector(buffer), isolate->date_cache()); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3481 | RETURN_RESULT_OR_FAILURE( |
| 3482 | isolate, isolate->factory()->NewStringFromUtf8(CStrVector(buffer))); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3483 | } |
| 3484 | |
| 3485 | |
| 3486 | // ES6 section 20.3.2 The Date Constructor for the [[Construct]] case. |
| 3487 | BUILTIN(DateConstructor_ConstructStub) { |
| 3488 | HandleScope scope(isolate); |
| 3489 | int const argc = args.length() - 1; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 3490 | Handle<JSFunction> target = args.target<JSFunction>(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3491 | Handle<JSReceiver> new_target = Handle<JSReceiver>::cast(args.new_target()); |
| 3492 | double time_val; |
| 3493 | if (argc == 0) { |
| 3494 | time_val = JSDate::CurrentTimeValue(isolate); |
| 3495 | } else if (argc == 1) { |
| 3496 | Handle<Object> value = args.at<Object>(1); |
| 3497 | if (value->IsJSDate()) { |
| 3498 | time_val = Handle<JSDate>::cast(value)->value()->Number(); |
| 3499 | } else { |
| 3500 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, value, |
| 3501 | Object::ToPrimitive(value)); |
| 3502 | if (value->IsString()) { |
| 3503 | time_val = ParseDateTimeString(Handle<String>::cast(value)); |
| 3504 | } else { |
| 3505 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, value, |
| 3506 | Object::ToNumber(value)); |
| 3507 | time_val = value->Number(); |
| 3508 | } |
| 3509 | } |
| 3510 | } else { |
| 3511 | Handle<Object> year_object; |
| 3512 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, year_object, |
| 3513 | Object::ToNumber(args.at<Object>(1))); |
| 3514 | Handle<Object> month_object; |
| 3515 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, month_object, |
| 3516 | Object::ToNumber(args.at<Object>(2))); |
| 3517 | double year = year_object->Number(); |
| 3518 | double month = month_object->Number(); |
| 3519 | double date = 1.0, hours = 0.0, minutes = 0.0, seconds = 0.0, ms = 0.0; |
| 3520 | if (argc >= 3) { |
| 3521 | Handle<Object> date_object; |
| 3522 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, date_object, |
| 3523 | Object::ToNumber(args.at<Object>(3))); |
| 3524 | date = date_object->Number(); |
| 3525 | if (argc >= 4) { |
| 3526 | Handle<Object> hours_object; |
| 3527 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 3528 | isolate, hours_object, Object::ToNumber(args.at<Object>(4))); |
| 3529 | hours = hours_object->Number(); |
| 3530 | if (argc >= 5) { |
| 3531 | Handle<Object> minutes_object; |
| 3532 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 3533 | isolate, minutes_object, Object::ToNumber(args.at<Object>(5))); |
| 3534 | minutes = minutes_object->Number(); |
| 3535 | if (argc >= 6) { |
| 3536 | Handle<Object> seconds_object; |
| 3537 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 3538 | isolate, seconds_object, Object::ToNumber(args.at<Object>(6))); |
| 3539 | seconds = seconds_object->Number(); |
| 3540 | if (argc >= 7) { |
| 3541 | Handle<Object> ms_object; |
| 3542 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 3543 | isolate, ms_object, Object::ToNumber(args.at<Object>(7))); |
| 3544 | ms = ms_object->Number(); |
| 3545 | } |
| 3546 | } |
| 3547 | } |
| 3548 | } |
| 3549 | } |
| 3550 | if (!std::isnan(year)) { |
| 3551 | double const y = DoubleToInteger(year); |
| 3552 | if (0.0 <= y && y <= 99) year = 1900 + y; |
| 3553 | } |
| 3554 | double const day = MakeDay(year, month, date); |
| 3555 | double const time = MakeTime(hours, minutes, seconds, ms); |
| 3556 | time_val = MakeDate(day, time); |
| 3557 | if (time_val >= -DateCache::kMaxTimeBeforeUTCInMs && |
| 3558 | time_val <= DateCache::kMaxTimeBeforeUTCInMs) { |
| 3559 | time_val = isolate->date_cache()->ToUTC(static_cast<int64_t>(time_val)); |
| 3560 | } else { |
| 3561 | time_val = std::numeric_limits<double>::quiet_NaN(); |
| 3562 | } |
| 3563 | } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 3564 | RETURN_RESULT_OR_FAILURE(isolate, JSDate::New(target, new_target, time_val)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 3565 | } |
| 3566 | |
| 3567 | |
| 3568 | // ES6 section 20.3.3.1 Date.now ( ) |
| 3569 | BUILTIN(DateNow) { |
| 3570 | HandleScope scope(isolate); |
| 3571 | return *isolate->factory()->NewNumber(JSDate::CurrentTimeValue(isolate)); |
| 3572 | } |
| 3573 | |
| 3574 | |
| 3575 | // ES6 section 20.3.3.2 Date.parse ( string ) |
| 3576 | BUILTIN(DateParse) { |
| 3577 | HandleScope scope(isolate); |
| 3578 | Handle<String> string; |
| 3579 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 3580 | isolate, string, |
| 3581 | Object::ToString(isolate, args.atOrUndefined(isolate, 1))); |
| 3582 | return *isolate->factory()->NewNumber(ParseDateTimeString(string)); |
| 3583 | } |
| 3584 | |
| 3585 | |
| 3586 | // ES6 section 20.3.3.4 Date.UTC (year,month,date,hours,minutes,seconds,ms) |
| 3587 | BUILTIN(DateUTC) { |
| 3588 | HandleScope scope(isolate); |
| 3589 | int const argc = args.length() - 1; |
| 3590 | double year = std::numeric_limits<double>::quiet_NaN(); |
| 3591 | double month = std::numeric_limits<double>::quiet_NaN(); |
| 3592 | double date = 1.0, hours = 0.0, minutes = 0.0, seconds = 0.0, ms = 0.0; |
| 3593 | if (argc >= 1) { |
| 3594 | Handle<Object> year_object; |
| 3595 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, year_object, |
| 3596 | Object::ToNumber(args.at<Object>(1))); |
| 3597 | year = year_object->Number(); |
| 3598 | if (argc >= 2) { |
| 3599 | Handle<Object> month_object; |
| 3600 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, month_object, |
| 3601 | Object::ToNumber(args.at<Object>(2))); |
| 3602 | month = month_object->Number(); |
| 3603 | if (argc >= 3) { |
| 3604 | Handle<Object> date_object; |
| 3605 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 3606 | isolate, date_object, Object::ToNumber(args.at<Object>(3))); |
| 3607 | date = date_object->Number(); |
| 3608 | if (argc >= 4) { |
| 3609 | Handle<Object> hours_object; |
| 3610 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 3611 | isolate, hours_object, Object::ToNumber(args.at<Object>(4))); |
| 3612 | hours = hours_object->Number(); |
| 3613 | if (argc >= 5) { |
| 3614 | Handle<Object> minutes_object; |
| 3615 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 3616 | isolate, minutes_object, Object::ToNumber(args.at<Object>(5))); |
| 3617 | minutes = minutes_object->Number(); |
| 3618 | if (argc >= 6) { |
| 3619 | Handle<Object> seconds_object; |
| 3620 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 3621 | isolate, seconds_object, |
| 3622 | Object::ToNumber(args.at<Object>(6))); |
| 3623 | seconds = seconds_object->Number(); |
| 3624 | if (argc >= 7) { |
| 3625 | Handle<Object> ms_object; |
| 3626 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 3627 | isolate, ms_object, Object::ToNumber(args.at<Object>(7))); |
| 3628 | ms = ms_object->Number(); |
| 3629 | } |
| 3630 | } |
| 3631 | } |
| 3632 | } |
| 3633 | } |
| 3634 | } |
| 3635 | } |
| 3636 | if (!std::isnan(year)) { |
| 3637 | double const y = DoubleToInteger(year); |
| 3638 | if (0.0 <= y && y <= 99) year = 1900 + y; |
| 3639 | } |
| 3640 | double const day = MakeDay(year, month, date); |
| 3641 | double const time = MakeTime(hours, minutes, seconds, ms); |
| 3642 | return *isolate->factory()->NewNumber(TimeClip(MakeDate(day, time))); |
| 3643 | } |
| 3644 | |
| 3645 | |
| 3646 | // ES6 section 20.3.4.20 Date.prototype.setDate ( date ) |
| 3647 | BUILTIN(DatePrototypeSetDate) { |
| 3648 | HandleScope scope(isolate); |
| 3649 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setDate"); |
| 3650 | Handle<Object> value = args.atOrUndefined(isolate, 1); |
| 3651 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, value, Object::ToNumber(value)); |
| 3652 | double time_val = date->value()->Number(); |
| 3653 | if (!std::isnan(time_val)) { |
| 3654 | int64_t const time_ms = static_cast<int64_t>(time_val); |
| 3655 | int64_t local_time_ms = isolate->date_cache()->ToLocal(time_ms); |
| 3656 | int const days = isolate->date_cache()->DaysFromTime(local_time_ms); |
| 3657 | int time_within_day = isolate->date_cache()->TimeInDay(local_time_ms, days); |
| 3658 | int year, month, day; |
| 3659 | isolate->date_cache()->YearMonthDayFromDays(days, &year, &month, &day); |
| 3660 | time_val = MakeDate(MakeDay(year, month, value->Number()), time_within_day); |
| 3661 | } |
| 3662 | return SetLocalDateValue(date, time_val); |
| 3663 | } |
| 3664 | |
| 3665 | |
| 3666 | // ES6 section 20.3.4.21 Date.prototype.setFullYear (year, month, date) |
| 3667 | BUILTIN(DatePrototypeSetFullYear) { |
| 3668 | HandleScope scope(isolate); |
| 3669 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setFullYear"); |
| 3670 | int const argc = args.length() - 1; |
| 3671 | Handle<Object> year = args.atOrUndefined(isolate, 1); |
| 3672 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, year, Object::ToNumber(year)); |
| 3673 | double y = year->Number(), m = 0.0, dt = 1.0; |
| 3674 | int time_within_day = 0; |
| 3675 | if (!std::isnan(date->value()->Number())) { |
| 3676 | int64_t const time_ms = static_cast<int64_t>(date->value()->Number()); |
| 3677 | int64_t local_time_ms = isolate->date_cache()->ToLocal(time_ms); |
| 3678 | int const days = isolate->date_cache()->DaysFromTime(local_time_ms); |
| 3679 | time_within_day = isolate->date_cache()->TimeInDay(local_time_ms, days); |
| 3680 | int year, month, day; |
| 3681 | isolate->date_cache()->YearMonthDayFromDays(days, &year, &month, &day); |
| 3682 | m = month; |
| 3683 | dt = day; |
| 3684 | } |
| 3685 | if (argc >= 2) { |
| 3686 | Handle<Object> month = args.at<Object>(2); |
| 3687 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, month, Object::ToNumber(month)); |
| 3688 | m = month->Number(); |
| 3689 | if (argc >= 3) { |
| 3690 | Handle<Object> date = args.at<Object>(3); |
| 3691 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, date, Object::ToNumber(date)); |
| 3692 | dt = date->Number(); |
| 3693 | } |
| 3694 | } |
| 3695 | double time_val = MakeDate(MakeDay(y, m, dt), time_within_day); |
| 3696 | return SetLocalDateValue(date, time_val); |
| 3697 | } |
| 3698 | |
| 3699 | |
| 3700 | // ES6 section 20.3.4.22 Date.prototype.setHours(hour, min, sec, ms) |
| 3701 | BUILTIN(DatePrototypeSetHours) { |
| 3702 | HandleScope scope(isolate); |
| 3703 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setHours"); |
| 3704 | int const argc = args.length() - 1; |
| 3705 | Handle<Object> hour = args.atOrUndefined(isolate, 1); |
| 3706 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, hour, Object::ToNumber(hour)); |
| 3707 | double h = hour->Number(); |
| 3708 | double time_val = date->value()->Number(); |
| 3709 | if (!std::isnan(time_val)) { |
| 3710 | int64_t const time_ms = static_cast<int64_t>(time_val); |
| 3711 | int64_t local_time_ms = isolate->date_cache()->ToLocal(time_ms); |
| 3712 | int day = isolate->date_cache()->DaysFromTime(local_time_ms); |
| 3713 | int time_within_day = isolate->date_cache()->TimeInDay(local_time_ms, day); |
| 3714 | double m = (time_within_day / (60 * 1000)) % 60; |
| 3715 | double s = (time_within_day / 1000) % 60; |
| 3716 | double milli = time_within_day % 1000; |
| 3717 | if (argc >= 2) { |
| 3718 | Handle<Object> min = args.at<Object>(2); |
| 3719 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, min, Object::ToNumber(min)); |
| 3720 | m = min->Number(); |
| 3721 | if (argc >= 3) { |
| 3722 | Handle<Object> sec = args.at<Object>(3); |
| 3723 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, sec, Object::ToNumber(sec)); |
| 3724 | s = sec->Number(); |
| 3725 | if (argc >= 4) { |
| 3726 | Handle<Object> ms = args.at<Object>(4); |
| 3727 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(ms)); |
| 3728 | milli = ms->Number(); |
| 3729 | } |
| 3730 | } |
| 3731 | } |
| 3732 | time_val = MakeDate(day, MakeTime(h, m, s, milli)); |
| 3733 | } |
| 3734 | return SetLocalDateValue(date, time_val); |
| 3735 | } |
| 3736 | |
| 3737 | |
| 3738 | // ES6 section 20.3.4.23 Date.prototype.setMilliseconds(ms) |
| 3739 | BUILTIN(DatePrototypeSetMilliseconds) { |
| 3740 | HandleScope scope(isolate); |
| 3741 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setMilliseconds"); |
| 3742 | Handle<Object> ms = args.atOrUndefined(isolate, 1); |
| 3743 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(ms)); |
| 3744 | double time_val = date->value()->Number(); |
| 3745 | if (!std::isnan(time_val)) { |
| 3746 | int64_t const time_ms = static_cast<int64_t>(time_val); |
| 3747 | int64_t local_time_ms = isolate->date_cache()->ToLocal(time_ms); |
| 3748 | int day = isolate->date_cache()->DaysFromTime(local_time_ms); |
| 3749 | int time_within_day = isolate->date_cache()->TimeInDay(local_time_ms, day); |
| 3750 | int h = time_within_day / (60 * 60 * 1000); |
| 3751 | int m = (time_within_day / (60 * 1000)) % 60; |
| 3752 | int s = (time_within_day / 1000) % 60; |
| 3753 | time_val = MakeDate(day, MakeTime(h, m, s, ms->Number())); |
| 3754 | } |
| 3755 | return SetLocalDateValue(date, time_val); |
| 3756 | } |
| 3757 | |
| 3758 | |
| 3759 | // ES6 section 20.3.4.24 Date.prototype.setMinutes ( min, sec, ms ) |
| 3760 | BUILTIN(DatePrototypeSetMinutes) { |
| 3761 | HandleScope scope(isolate); |
| 3762 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setMinutes"); |
| 3763 | int const argc = args.length() - 1; |
| 3764 | Handle<Object> min = args.atOrUndefined(isolate, 1); |
| 3765 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, min, Object::ToNumber(min)); |
| 3766 | double time_val = date->value()->Number(); |
| 3767 | if (!std::isnan(time_val)) { |
| 3768 | int64_t const time_ms = static_cast<int64_t>(time_val); |
| 3769 | int64_t local_time_ms = isolate->date_cache()->ToLocal(time_ms); |
| 3770 | int day = isolate->date_cache()->DaysFromTime(local_time_ms); |
| 3771 | int time_within_day = isolate->date_cache()->TimeInDay(local_time_ms, day); |
| 3772 | int h = time_within_day / (60 * 60 * 1000); |
| 3773 | double m = min->Number(); |
| 3774 | double s = (time_within_day / 1000) % 60; |
| 3775 | double milli = time_within_day % 1000; |
| 3776 | if (argc >= 2) { |
| 3777 | Handle<Object> sec = args.at<Object>(2); |
| 3778 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, sec, Object::ToNumber(sec)); |
| 3779 | s = sec->Number(); |
| 3780 | if (argc >= 3) { |
| 3781 | Handle<Object> ms = args.at<Object>(3); |
| 3782 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(ms)); |
| 3783 | milli = ms->Number(); |
| 3784 | } |
| 3785 | } |
| 3786 | time_val = MakeDate(day, MakeTime(h, m, s, milli)); |
| 3787 | } |
| 3788 | return SetLocalDateValue(date, time_val); |
| 3789 | } |
| 3790 | |
| 3791 | |
| 3792 | // ES6 section 20.3.4.25 Date.prototype.setMonth ( month, date ) |
| 3793 | BUILTIN(DatePrototypeSetMonth) { |
| 3794 | HandleScope scope(isolate); |
| 3795 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setMonth"); |
| 3796 | int const argc = args.length() - 1; |
| 3797 | Handle<Object> month = args.atOrUndefined(isolate, 1); |
| 3798 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, month, Object::ToNumber(month)); |
| 3799 | double time_val = date->value()->Number(); |
| 3800 | if (!std::isnan(time_val)) { |
| 3801 | int64_t const time_ms = static_cast<int64_t>(time_val); |
| 3802 | int64_t local_time_ms = isolate->date_cache()->ToLocal(time_ms); |
| 3803 | int days = isolate->date_cache()->DaysFromTime(local_time_ms); |
| 3804 | int time_within_day = isolate->date_cache()->TimeInDay(local_time_ms, days); |
| 3805 | int year, unused, day; |
| 3806 | isolate->date_cache()->YearMonthDayFromDays(days, &year, &unused, &day); |
| 3807 | double m = month->Number(); |
| 3808 | double dt = day; |
| 3809 | if (argc >= 2) { |
| 3810 | Handle<Object> date = args.at<Object>(2); |
| 3811 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, date, Object::ToNumber(date)); |
| 3812 | dt = date->Number(); |
| 3813 | } |
| 3814 | time_val = MakeDate(MakeDay(year, m, dt), time_within_day); |
| 3815 | } |
| 3816 | return SetLocalDateValue(date, time_val); |
| 3817 | } |
| 3818 | |
| 3819 | |
| 3820 | // ES6 section 20.3.4.26 Date.prototype.setSeconds ( sec, ms ) |
| 3821 | BUILTIN(DatePrototypeSetSeconds) { |
| 3822 | HandleScope scope(isolate); |
| 3823 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setSeconds"); |
| 3824 | int const argc = args.length() - 1; |
| 3825 | Handle<Object> sec = args.atOrUndefined(isolate, 1); |
| 3826 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, sec, Object::ToNumber(sec)); |
| 3827 | double time_val = date->value()->Number(); |
| 3828 | if (!std::isnan(time_val)) { |
| 3829 | int64_t const time_ms = static_cast<int64_t>(time_val); |
| 3830 | int64_t local_time_ms = isolate->date_cache()->ToLocal(time_ms); |
| 3831 | int day = isolate->date_cache()->DaysFromTime(local_time_ms); |
| 3832 | int time_within_day = isolate->date_cache()->TimeInDay(local_time_ms, day); |
| 3833 | int h = time_within_day / (60 * 60 * 1000); |
| 3834 | double m = (time_within_day / (60 * 1000)) % 60; |
| 3835 | double s = sec->Number(); |
| 3836 | double milli = time_within_day % 1000; |
| 3837 | if (argc >= 2) { |
| 3838 | Handle<Object> ms = args.at<Object>(2); |
| 3839 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(ms)); |
| 3840 | milli = ms->Number(); |
| 3841 | } |
| 3842 | time_val = MakeDate(day, MakeTime(h, m, s, milli)); |
| 3843 | } |
| 3844 | return SetLocalDateValue(date, time_val); |
| 3845 | } |
| 3846 | |
| 3847 | |
| 3848 | // ES6 section 20.3.4.27 Date.prototype.setTime ( time ) |
| 3849 | BUILTIN(DatePrototypeSetTime) { |
| 3850 | HandleScope scope(isolate); |
| 3851 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setTime"); |
| 3852 | Handle<Object> value = args.atOrUndefined(isolate, 1); |
| 3853 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, value, Object::ToNumber(value)); |
| 3854 | return *JSDate::SetValue(date, TimeClip(value->Number())); |
| 3855 | } |
| 3856 | |
| 3857 | |
| 3858 | // ES6 section 20.3.4.28 Date.prototype.setUTCDate ( date ) |
| 3859 | BUILTIN(DatePrototypeSetUTCDate) { |
| 3860 | HandleScope scope(isolate); |
| 3861 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setUTCDate"); |
| 3862 | Handle<Object> value = args.atOrUndefined(isolate, 1); |
| 3863 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, value, Object::ToNumber(value)); |
| 3864 | if (std::isnan(date->value()->Number())) return date->value(); |
| 3865 | int64_t const time_ms = static_cast<int64_t>(date->value()->Number()); |
| 3866 | int const days = isolate->date_cache()->DaysFromTime(time_ms); |
| 3867 | int const time_within_day = isolate->date_cache()->TimeInDay(time_ms, days); |
| 3868 | int year, month, day; |
| 3869 | isolate->date_cache()->YearMonthDayFromDays(days, &year, &month, &day); |
| 3870 | double const time_val = |
| 3871 | MakeDate(MakeDay(year, month, value->Number()), time_within_day); |
| 3872 | return *JSDate::SetValue(date, TimeClip(time_val)); |
| 3873 | } |
| 3874 | |
| 3875 | |
| 3876 | // ES6 section 20.3.4.29 Date.prototype.setUTCFullYear (year, month, date) |
| 3877 | BUILTIN(DatePrototypeSetUTCFullYear) { |
| 3878 | HandleScope scope(isolate); |
| 3879 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setUTCFullYear"); |
| 3880 | int const argc = args.length() - 1; |
| 3881 | Handle<Object> year = args.atOrUndefined(isolate, 1); |
| 3882 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, year, Object::ToNumber(year)); |
| 3883 | double y = year->Number(), m = 0.0, dt = 1.0; |
| 3884 | int time_within_day = 0; |
| 3885 | if (!std::isnan(date->value()->Number())) { |
| 3886 | int64_t const time_ms = static_cast<int64_t>(date->value()->Number()); |
| 3887 | int const days = isolate->date_cache()->DaysFromTime(time_ms); |
| 3888 | time_within_day = isolate->date_cache()->TimeInDay(time_ms, days); |
| 3889 | int year, month, day; |
| 3890 | isolate->date_cache()->YearMonthDayFromDays(days, &year, &month, &day); |
| 3891 | m = month; |
| 3892 | dt = day; |
| 3893 | } |
| 3894 | if (argc >= 2) { |
| 3895 | Handle<Object> month = args.at<Object>(2); |
| 3896 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, month, Object::ToNumber(month)); |
| 3897 | m = month->Number(); |
| 3898 | if (argc >= 3) { |
| 3899 | Handle<Object> date = args.at<Object>(3); |
| 3900 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, date, Object::ToNumber(date)); |
| 3901 | dt = date->Number(); |
| 3902 | } |
| 3903 | } |
| 3904 | double const time_val = MakeDate(MakeDay(y, m, dt), time_within_day); |
| 3905 | return *JSDate::SetValue(date, TimeClip(time_val)); |
| 3906 | } |
| 3907 | |
| 3908 | |
| 3909 | // ES6 section 20.3.4.30 Date.prototype.setUTCHours(hour, min, sec, ms) |
| 3910 | BUILTIN(DatePrototypeSetUTCHours) { |
| 3911 | HandleScope scope(isolate); |
| 3912 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setUTCHours"); |
| 3913 | int const argc = args.length() - 1; |
| 3914 | Handle<Object> hour = args.atOrUndefined(isolate, 1); |
| 3915 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, hour, Object::ToNumber(hour)); |
| 3916 | double h = hour->Number(); |
| 3917 | double time_val = date->value()->Number(); |
| 3918 | if (!std::isnan(time_val)) { |
| 3919 | int64_t const time_ms = static_cast<int64_t>(time_val); |
| 3920 | int day = isolate->date_cache()->DaysFromTime(time_ms); |
| 3921 | int time_within_day = isolate->date_cache()->TimeInDay(time_ms, day); |
| 3922 | double m = (time_within_day / (60 * 1000)) % 60; |
| 3923 | double s = (time_within_day / 1000) % 60; |
| 3924 | double milli = time_within_day % 1000; |
| 3925 | if (argc >= 2) { |
| 3926 | Handle<Object> min = args.at<Object>(2); |
| 3927 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, min, Object::ToNumber(min)); |
| 3928 | m = min->Number(); |
| 3929 | if (argc >= 3) { |
| 3930 | Handle<Object> sec = args.at<Object>(3); |
| 3931 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, sec, Object::ToNumber(sec)); |
| 3932 | s = sec->Number(); |
| 3933 | if (argc >= 4) { |
| 3934 | Handle<Object> ms = args.at<Object>(4); |
| 3935 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(ms)); |
| 3936 | milli = ms->Number(); |
| 3937 | } |
| 3938 | } |
| 3939 | } |
| 3940 | time_val = MakeDate(day, MakeTime(h, m, s, milli)); |
| 3941 | } |
| 3942 | return *JSDate::SetValue(date, TimeClip(time_val)); |
| 3943 | } |
| 3944 | |
| 3945 | |
| 3946 | // ES6 section 20.3.4.31 Date.prototype.setUTCMilliseconds(ms) |
| 3947 | BUILTIN(DatePrototypeSetUTCMilliseconds) { |
| 3948 | HandleScope scope(isolate); |
| 3949 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setUTCMilliseconds"); |
| 3950 | Handle<Object> ms = args.atOrUndefined(isolate, 1); |
| 3951 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(ms)); |
| 3952 | double time_val = date->value()->Number(); |
| 3953 | if (!std::isnan(time_val)) { |
| 3954 | int64_t const time_ms = static_cast<int64_t>(time_val); |
| 3955 | int day = isolate->date_cache()->DaysFromTime(time_ms); |
| 3956 | int time_within_day = isolate->date_cache()->TimeInDay(time_ms, day); |
| 3957 | int h = time_within_day / (60 * 60 * 1000); |
| 3958 | int m = (time_within_day / (60 * 1000)) % 60; |
| 3959 | int s = (time_within_day / 1000) % 60; |
| 3960 | time_val = MakeDate(day, MakeTime(h, m, s, ms->Number())); |
| 3961 | } |
| 3962 | return *JSDate::SetValue(date, TimeClip(time_val)); |
| 3963 | } |
| 3964 | |
| 3965 | |
| 3966 | // ES6 section 20.3.4.32 Date.prototype.setUTCMinutes ( min, sec, ms ) |
| 3967 | BUILTIN(DatePrototypeSetUTCMinutes) { |
| 3968 | HandleScope scope(isolate); |
| 3969 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setUTCMinutes"); |
| 3970 | int const argc = args.length() - 1; |
| 3971 | Handle<Object> min = args.atOrUndefined(isolate, 1); |
| 3972 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, min, Object::ToNumber(min)); |
| 3973 | double time_val = date->value()->Number(); |
| 3974 | if (!std::isnan(time_val)) { |
| 3975 | int64_t const time_ms = static_cast<int64_t>(time_val); |
| 3976 | int day = isolate->date_cache()->DaysFromTime(time_ms); |
| 3977 | int time_within_day = isolate->date_cache()->TimeInDay(time_ms, day); |
| 3978 | int h = time_within_day / (60 * 60 * 1000); |
| 3979 | double m = min->Number(); |
| 3980 | double s = (time_within_day / 1000) % 60; |
| 3981 | double milli = time_within_day % 1000; |
| 3982 | if (argc >= 2) { |
| 3983 | Handle<Object> sec = args.at<Object>(2); |
| 3984 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, sec, Object::ToNumber(sec)); |
| 3985 | s = sec->Number(); |
| 3986 | if (argc >= 3) { |
| 3987 | Handle<Object> ms = args.at<Object>(3); |
| 3988 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(ms)); |
| 3989 | milli = ms->Number(); |
| 3990 | } |
| 3991 | } |
| 3992 | time_val = MakeDate(day, MakeTime(h, m, s, milli)); |
| 3993 | } |
| 3994 | return *JSDate::SetValue(date, TimeClip(time_val)); |
| 3995 | } |
| 3996 | |
| 3997 | |
| 3998 | // ES6 section 20.3.4.31 Date.prototype.setUTCMonth ( month, date ) |
| 3999 | BUILTIN(DatePrototypeSetUTCMonth) { |
| 4000 | HandleScope scope(isolate); |
| 4001 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setUTCMonth"); |
| 4002 | int const argc = args.length() - 1; |
| 4003 | Handle<Object> month = args.atOrUndefined(isolate, 1); |
| 4004 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, month, Object::ToNumber(month)); |
| 4005 | double time_val = date->value()->Number(); |
| 4006 | if (!std::isnan(time_val)) { |
| 4007 | int64_t const time_ms = static_cast<int64_t>(time_val); |
| 4008 | int days = isolate->date_cache()->DaysFromTime(time_ms); |
| 4009 | int time_within_day = isolate->date_cache()->TimeInDay(time_ms, days); |
| 4010 | int year, unused, day; |
| 4011 | isolate->date_cache()->YearMonthDayFromDays(days, &year, &unused, &day); |
| 4012 | double m = month->Number(); |
| 4013 | double dt = day; |
| 4014 | if (argc >= 2) { |
| 4015 | Handle<Object> date = args.at<Object>(2); |
| 4016 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, date, Object::ToNumber(date)); |
| 4017 | dt = date->Number(); |
| 4018 | } |
| 4019 | time_val = MakeDate(MakeDay(year, m, dt), time_within_day); |
| 4020 | } |
| 4021 | return *JSDate::SetValue(date, TimeClip(time_val)); |
| 4022 | } |
| 4023 | |
| 4024 | |
| 4025 | // ES6 section 20.3.4.34 Date.prototype.setUTCSeconds ( sec, ms ) |
| 4026 | BUILTIN(DatePrototypeSetUTCSeconds) { |
| 4027 | HandleScope scope(isolate); |
| 4028 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setUTCSeconds"); |
| 4029 | int const argc = args.length() - 1; |
| 4030 | Handle<Object> sec = args.atOrUndefined(isolate, 1); |
| 4031 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, sec, Object::ToNumber(sec)); |
| 4032 | double time_val = date->value()->Number(); |
| 4033 | if (!std::isnan(time_val)) { |
| 4034 | int64_t const time_ms = static_cast<int64_t>(time_val); |
| 4035 | int day = isolate->date_cache()->DaysFromTime(time_ms); |
| 4036 | int time_within_day = isolate->date_cache()->TimeInDay(time_ms, day); |
| 4037 | int h = time_within_day / (60 * 60 * 1000); |
| 4038 | double m = (time_within_day / (60 * 1000)) % 60; |
| 4039 | double s = sec->Number(); |
| 4040 | double milli = time_within_day % 1000; |
| 4041 | if (argc >= 2) { |
| 4042 | Handle<Object> ms = args.at<Object>(2); |
| 4043 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, ms, Object::ToNumber(ms)); |
| 4044 | milli = ms->Number(); |
| 4045 | } |
| 4046 | time_val = MakeDate(day, MakeTime(h, m, s, milli)); |
| 4047 | } |
| 4048 | return *JSDate::SetValue(date, TimeClip(time_val)); |
| 4049 | } |
| 4050 | |
| 4051 | |
| 4052 | // ES6 section 20.3.4.35 Date.prototype.toDateString ( ) |
| 4053 | BUILTIN(DatePrototypeToDateString) { |
| 4054 | HandleScope scope(isolate); |
| 4055 | CHECK_RECEIVER(JSDate, date, "Date.prototype.toDateString"); |
| 4056 | char buffer[128]; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4057 | ToDateString(date->value()->Number(), ArrayVector(buffer), |
| 4058 | isolate->date_cache(), kDateOnly); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4059 | RETURN_RESULT_OR_FAILURE( |
| 4060 | isolate, isolate->factory()->NewStringFromUtf8(CStrVector(buffer))); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4061 | } |
| 4062 | |
| 4063 | |
| 4064 | // ES6 section 20.3.4.36 Date.prototype.toISOString ( ) |
| 4065 | BUILTIN(DatePrototypeToISOString) { |
| 4066 | HandleScope scope(isolate); |
| 4067 | CHECK_RECEIVER(JSDate, date, "Date.prototype.toISOString"); |
| 4068 | double const time_val = date->value()->Number(); |
| 4069 | if (std::isnan(time_val)) { |
| 4070 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 4071 | isolate, NewRangeError(MessageTemplate::kInvalidTimeValue)); |
| 4072 | } |
| 4073 | int64_t const time_ms = static_cast<int64_t>(time_val); |
| 4074 | int year, month, day, weekday, hour, min, sec, ms; |
| 4075 | isolate->date_cache()->BreakDownTime(time_ms, &year, &month, &day, &weekday, |
| 4076 | &hour, &min, &sec, &ms); |
| 4077 | char buffer[128]; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4078 | if (year >= 0 && year <= 9999) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4079 | SNPrintF(ArrayVector(buffer), "%04d-%02d-%02dT%02d:%02d:%02d.%03dZ", year, |
| 4080 | month + 1, day, hour, min, sec, ms); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4081 | } else if (year < 0) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4082 | SNPrintF(ArrayVector(buffer), "-%06d-%02d-%02dT%02d:%02d:%02d.%03dZ", -year, |
| 4083 | month + 1, day, hour, min, sec, ms); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4084 | } else { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4085 | SNPrintF(ArrayVector(buffer), "+%06d-%02d-%02dT%02d:%02d:%02d.%03dZ", year, |
| 4086 | month + 1, day, hour, min, sec, ms); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4087 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4088 | return *isolate->factory()->NewStringFromAsciiChecked(buffer); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4089 | } |
| 4090 | |
| 4091 | |
| 4092 | // ES6 section 20.3.4.41 Date.prototype.toString ( ) |
| 4093 | BUILTIN(DatePrototypeToString) { |
| 4094 | HandleScope scope(isolate); |
| 4095 | CHECK_RECEIVER(JSDate, date, "Date.prototype.toString"); |
| 4096 | char buffer[128]; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4097 | ToDateString(date->value()->Number(), ArrayVector(buffer), |
| 4098 | isolate->date_cache()); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4099 | RETURN_RESULT_OR_FAILURE( |
| 4100 | isolate, isolate->factory()->NewStringFromUtf8(CStrVector(buffer))); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4101 | } |
| 4102 | |
| 4103 | |
| 4104 | // ES6 section 20.3.4.42 Date.prototype.toTimeString ( ) |
| 4105 | BUILTIN(DatePrototypeToTimeString) { |
| 4106 | HandleScope scope(isolate); |
| 4107 | CHECK_RECEIVER(JSDate, date, "Date.prototype.toTimeString"); |
| 4108 | char buffer[128]; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4109 | ToDateString(date->value()->Number(), ArrayVector(buffer), |
| 4110 | isolate->date_cache(), kTimeOnly); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4111 | RETURN_RESULT_OR_FAILURE( |
| 4112 | isolate, isolate->factory()->NewStringFromUtf8(CStrVector(buffer))); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4113 | } |
| 4114 | |
| 4115 | |
| 4116 | // ES6 section 20.3.4.43 Date.prototype.toUTCString ( ) |
| 4117 | BUILTIN(DatePrototypeToUTCString) { |
| 4118 | HandleScope scope(isolate); |
| 4119 | CHECK_RECEIVER(JSDate, date, "Date.prototype.toUTCString"); |
| 4120 | double const time_val = date->value()->Number(); |
| 4121 | if (std::isnan(time_val)) { |
| 4122 | return *isolate->factory()->NewStringFromAsciiChecked("Invalid Date"); |
| 4123 | } |
| 4124 | char buffer[128]; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4125 | int64_t time_ms = static_cast<int64_t>(time_val); |
| 4126 | int year, month, day, weekday, hour, min, sec, ms; |
| 4127 | isolate->date_cache()->BreakDownTime(time_ms, &year, &month, &day, &weekday, |
| 4128 | &hour, &min, &sec, &ms); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4129 | SNPrintF(ArrayVector(buffer), "%s, %02d %s %4d %02d:%02d:%02d GMT", |
| 4130 | kShortWeekDays[weekday], day, kShortMonths[month], year, hour, min, |
| 4131 | sec); |
| 4132 | return *isolate->factory()->NewStringFromAsciiChecked(buffer); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4133 | } |
| 4134 | |
| 4135 | |
| 4136 | // ES6 section 20.3.4.44 Date.prototype.valueOf ( ) |
| 4137 | BUILTIN(DatePrototypeValueOf) { |
| 4138 | HandleScope scope(isolate); |
| 4139 | CHECK_RECEIVER(JSDate, date, "Date.prototype.valueOf"); |
| 4140 | return date->value(); |
| 4141 | } |
| 4142 | |
| 4143 | |
| 4144 | // ES6 section 20.3.4.45 Date.prototype [ @@toPrimitive ] ( hint ) |
| 4145 | BUILTIN(DatePrototypeToPrimitive) { |
| 4146 | HandleScope scope(isolate); |
| 4147 | DCHECK_EQ(2, args.length()); |
| 4148 | CHECK_RECEIVER(JSReceiver, receiver, "Date.prototype [ @@toPrimitive ]"); |
| 4149 | Handle<Object> hint = args.at<Object>(1); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4150 | RETURN_RESULT_OR_FAILURE(isolate, JSDate::ToPrimitive(receiver, hint)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4151 | } |
| 4152 | |
| 4153 | |
| 4154 | // ES6 section B.2.4.1 Date.prototype.getYear ( ) |
| 4155 | BUILTIN(DatePrototypeGetYear) { |
| 4156 | HandleScope scope(isolate); |
| 4157 | CHECK_RECEIVER(JSDate, date, "Date.prototype.getYear"); |
| 4158 | double time_val = date->value()->Number(); |
| 4159 | if (std::isnan(time_val)) return date->value(); |
| 4160 | int64_t time_ms = static_cast<int64_t>(time_val); |
| 4161 | int64_t local_time_ms = isolate->date_cache()->ToLocal(time_ms); |
| 4162 | int days = isolate->date_cache()->DaysFromTime(local_time_ms); |
| 4163 | int year, month, day; |
| 4164 | isolate->date_cache()->YearMonthDayFromDays(days, &year, &month, &day); |
| 4165 | return Smi::FromInt(year - 1900); |
| 4166 | } |
| 4167 | |
| 4168 | |
| 4169 | // ES6 section B.2.4.2 Date.prototype.setYear ( year ) |
| 4170 | BUILTIN(DatePrototypeSetYear) { |
| 4171 | HandleScope scope(isolate); |
| 4172 | CHECK_RECEIVER(JSDate, date, "Date.prototype.setYear"); |
| 4173 | Handle<Object> year = args.atOrUndefined(isolate, 1); |
| 4174 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, year, Object::ToNumber(year)); |
| 4175 | double m = 0.0, dt = 1.0, y = year->Number(); |
| 4176 | if (0.0 <= y && y <= 99.0) { |
| 4177 | y = 1900.0 + DoubleToInteger(y); |
| 4178 | } |
| 4179 | int time_within_day = 0; |
| 4180 | if (!std::isnan(date->value()->Number())) { |
| 4181 | int64_t const time_ms = static_cast<int64_t>(date->value()->Number()); |
| 4182 | int64_t local_time_ms = isolate->date_cache()->ToLocal(time_ms); |
| 4183 | int const days = isolate->date_cache()->DaysFromTime(local_time_ms); |
| 4184 | time_within_day = isolate->date_cache()->TimeInDay(local_time_ms, days); |
| 4185 | int year, month, day; |
| 4186 | isolate->date_cache()->YearMonthDayFromDays(days, &year, &month, &day); |
| 4187 | m = month; |
| 4188 | dt = day; |
| 4189 | } |
| 4190 | double time_val = MakeDate(MakeDay(y, m, dt), time_within_day); |
| 4191 | return SetLocalDateValue(date, time_val); |
| 4192 | } |
| 4193 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4194 | // ES6 section 20.3.4.37 Date.prototype.toJSON ( key ) |
| 4195 | BUILTIN(DatePrototypeToJson) { |
| 4196 | HandleScope scope(isolate); |
| 4197 | Handle<Object> receiver = args.atOrUndefined(isolate, 0); |
| 4198 | Handle<JSReceiver> receiver_obj; |
| 4199 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, receiver_obj, |
| 4200 | Object::ToObject(isolate, receiver)); |
| 4201 | Handle<Object> primitive; |
| 4202 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 4203 | isolate, primitive, |
| 4204 | Object::ToPrimitive(receiver_obj, ToPrimitiveHint::kNumber)); |
| 4205 | if (primitive->IsNumber() && !std::isfinite(primitive->Number())) { |
| 4206 | return isolate->heap()->null_value(); |
| 4207 | } else { |
| 4208 | Handle<String> name = |
| 4209 | isolate->factory()->NewStringFromAsciiChecked("toISOString"); |
| 4210 | Handle<Object> function; |
| 4211 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, function, |
| 4212 | Object::GetProperty(receiver_obj, name)); |
| 4213 | if (!function->IsCallable()) { |
| 4214 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 4215 | isolate, NewTypeError(MessageTemplate::kCalledNonCallable, name)); |
| 4216 | } |
| 4217 | RETURN_RESULT_OR_FAILURE( |
| 4218 | isolate, Execution::Call(isolate, function, receiver_obj, 0, NULL)); |
| 4219 | } |
| 4220 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4221 | |
| 4222 | // static |
| 4223 | void Builtins::Generate_DatePrototypeGetDate(MacroAssembler* masm) { |
| 4224 | Generate_DatePrototype_GetField(masm, JSDate::kDay); |
| 4225 | } |
| 4226 | |
| 4227 | |
| 4228 | // static |
| 4229 | void Builtins::Generate_DatePrototypeGetDay(MacroAssembler* masm) { |
| 4230 | Generate_DatePrototype_GetField(masm, JSDate::kWeekday); |
| 4231 | } |
| 4232 | |
| 4233 | |
| 4234 | // static |
| 4235 | void Builtins::Generate_DatePrototypeGetFullYear(MacroAssembler* masm) { |
| 4236 | Generate_DatePrototype_GetField(masm, JSDate::kYear); |
| 4237 | } |
| 4238 | |
| 4239 | |
| 4240 | // static |
| 4241 | void Builtins::Generate_DatePrototypeGetHours(MacroAssembler* masm) { |
| 4242 | Generate_DatePrototype_GetField(masm, JSDate::kHour); |
| 4243 | } |
| 4244 | |
| 4245 | |
| 4246 | // static |
| 4247 | void Builtins::Generate_DatePrototypeGetMilliseconds(MacroAssembler* masm) { |
| 4248 | Generate_DatePrototype_GetField(masm, JSDate::kMillisecond); |
| 4249 | } |
| 4250 | |
| 4251 | |
| 4252 | // static |
| 4253 | void Builtins::Generate_DatePrototypeGetMinutes(MacroAssembler* masm) { |
| 4254 | Generate_DatePrototype_GetField(masm, JSDate::kMinute); |
| 4255 | } |
| 4256 | |
| 4257 | |
| 4258 | // static |
| 4259 | void Builtins::Generate_DatePrototypeGetMonth(MacroAssembler* masm) { |
| 4260 | Generate_DatePrototype_GetField(masm, JSDate::kMonth); |
| 4261 | } |
| 4262 | |
| 4263 | |
| 4264 | // static |
| 4265 | void Builtins::Generate_DatePrototypeGetSeconds(MacroAssembler* masm) { |
| 4266 | Generate_DatePrototype_GetField(masm, JSDate::kSecond); |
| 4267 | } |
| 4268 | |
| 4269 | |
| 4270 | // static |
| 4271 | void Builtins::Generate_DatePrototypeGetTime(MacroAssembler* masm) { |
| 4272 | Generate_DatePrototype_GetField(masm, JSDate::kDateValue); |
| 4273 | } |
| 4274 | |
| 4275 | |
| 4276 | // static |
| 4277 | void Builtins::Generate_DatePrototypeGetTimezoneOffset(MacroAssembler* masm) { |
| 4278 | Generate_DatePrototype_GetField(masm, JSDate::kTimezoneOffset); |
| 4279 | } |
| 4280 | |
| 4281 | |
| 4282 | // static |
| 4283 | void Builtins::Generate_DatePrototypeGetUTCDate(MacroAssembler* masm) { |
| 4284 | Generate_DatePrototype_GetField(masm, JSDate::kDayUTC); |
| 4285 | } |
| 4286 | |
| 4287 | |
| 4288 | // static |
| 4289 | void Builtins::Generate_DatePrototypeGetUTCDay(MacroAssembler* masm) { |
| 4290 | Generate_DatePrototype_GetField(masm, JSDate::kWeekdayUTC); |
| 4291 | } |
| 4292 | |
| 4293 | |
| 4294 | // static |
| 4295 | void Builtins::Generate_DatePrototypeGetUTCFullYear(MacroAssembler* masm) { |
| 4296 | Generate_DatePrototype_GetField(masm, JSDate::kYearUTC); |
| 4297 | } |
| 4298 | |
| 4299 | |
| 4300 | // static |
| 4301 | void Builtins::Generate_DatePrototypeGetUTCHours(MacroAssembler* masm) { |
| 4302 | Generate_DatePrototype_GetField(masm, JSDate::kHourUTC); |
| 4303 | } |
| 4304 | |
| 4305 | |
| 4306 | // static |
| 4307 | void Builtins::Generate_DatePrototypeGetUTCMilliseconds(MacroAssembler* masm) { |
| 4308 | Generate_DatePrototype_GetField(masm, JSDate::kMillisecondUTC); |
| 4309 | } |
| 4310 | |
| 4311 | |
| 4312 | // static |
| 4313 | void Builtins::Generate_DatePrototypeGetUTCMinutes(MacroAssembler* masm) { |
| 4314 | Generate_DatePrototype_GetField(masm, JSDate::kMinuteUTC); |
| 4315 | } |
| 4316 | |
| 4317 | |
| 4318 | // static |
| 4319 | void Builtins::Generate_DatePrototypeGetUTCMonth(MacroAssembler* masm) { |
| 4320 | Generate_DatePrototype_GetField(masm, JSDate::kMonthUTC); |
| 4321 | } |
| 4322 | |
| 4323 | |
| 4324 | // static |
| 4325 | void Builtins::Generate_DatePrototypeGetUTCSeconds(MacroAssembler* masm) { |
| 4326 | Generate_DatePrototype_GetField(masm, JSDate::kSecondUTC); |
| 4327 | } |
| 4328 | |
| 4329 | |
| 4330 | namespace { |
| 4331 | |
| 4332 | // ES6 section 19.2.1.1.1 CreateDynamicFunction |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4333 | MaybeHandle<JSFunction> CreateDynamicFunction(Isolate* isolate, |
| 4334 | BuiltinArguments args, |
| 4335 | const char* token) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4336 | // Compute number of arguments, ignoring the receiver. |
| 4337 | DCHECK_LE(1, args.length()); |
| 4338 | int const argc = args.length() - 1; |
| 4339 | |
| 4340 | // Build the source string. |
| 4341 | Handle<String> source; |
| 4342 | { |
| 4343 | IncrementalStringBuilder builder(isolate); |
| 4344 | builder.AppendCharacter('('); |
| 4345 | builder.AppendCString(token); |
| 4346 | builder.AppendCharacter('('); |
| 4347 | bool parenthesis_in_arg_string = false; |
| 4348 | if (argc > 1) { |
| 4349 | for (int i = 1; i < argc; ++i) { |
| 4350 | if (i > 1) builder.AppendCharacter(','); |
| 4351 | Handle<String> param; |
| 4352 | ASSIGN_RETURN_ON_EXCEPTION( |
| 4353 | isolate, param, Object::ToString(isolate, args.at<Object>(i)), |
| 4354 | JSFunction); |
| 4355 | param = String::Flatten(param); |
| 4356 | builder.AppendString(param); |
| 4357 | // If the formal parameters string include ) - an illegal |
| 4358 | // character - it may make the combined function expression |
| 4359 | // compile. We avoid this problem by checking for this early on. |
| 4360 | DisallowHeapAllocation no_gc; // Ensure vectors stay valid. |
| 4361 | String::FlatContent param_content = param->GetFlatContent(); |
| 4362 | for (int i = 0, length = param->length(); i < length; ++i) { |
| 4363 | if (param_content.Get(i) == ')') { |
| 4364 | parenthesis_in_arg_string = true; |
| 4365 | break; |
| 4366 | } |
| 4367 | } |
| 4368 | } |
| 4369 | // If the formal parameters include an unbalanced block comment, the |
| 4370 | // function must be rejected. Since JavaScript does not allow nested |
| 4371 | // comments we can include a trailing block comment to catch this. |
| 4372 | builder.AppendCString("\n/**/"); |
| 4373 | } |
| 4374 | builder.AppendCString(") {\n"); |
| 4375 | if (argc > 0) { |
| 4376 | Handle<String> body; |
| 4377 | ASSIGN_RETURN_ON_EXCEPTION( |
| 4378 | isolate, body, Object::ToString(isolate, args.at<Object>(argc)), |
| 4379 | JSFunction); |
| 4380 | builder.AppendString(body); |
| 4381 | } |
| 4382 | builder.AppendCString("\n})"); |
| 4383 | ASSIGN_RETURN_ON_EXCEPTION(isolate, source, builder.Finish(), JSFunction); |
| 4384 | |
| 4385 | // The SyntaxError must be thrown after all the (observable) ToString |
| 4386 | // conversions are done. |
| 4387 | if (parenthesis_in_arg_string) { |
| 4388 | THROW_NEW_ERROR(isolate, |
| 4389 | NewSyntaxError(MessageTemplate::kParenthesisInArgString), |
| 4390 | JSFunction); |
| 4391 | } |
| 4392 | } |
| 4393 | |
| 4394 | // Compile the string in the constructor and not a helper so that errors to |
| 4395 | // come from here. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 4396 | Handle<JSFunction> target = args.target<JSFunction>(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4397 | Handle<JSObject> target_global_proxy(target->global_proxy(), isolate); |
| 4398 | Handle<JSFunction> function; |
| 4399 | { |
| 4400 | ASSIGN_RETURN_ON_EXCEPTION( |
| 4401 | isolate, function, |
| 4402 | CompileString(handle(target->native_context(), isolate), source, |
| 4403 | ONLY_SINGLE_FUNCTION_LITERAL), |
| 4404 | JSFunction); |
| 4405 | Handle<Object> result; |
| 4406 | ASSIGN_RETURN_ON_EXCEPTION( |
| 4407 | isolate, result, |
| 4408 | Execution::Call(isolate, function, target_global_proxy, 0, nullptr), |
| 4409 | JSFunction); |
| 4410 | function = Handle<JSFunction>::cast(result); |
| 4411 | function->shared()->set_name_should_print_as_anonymous(true); |
| 4412 | } |
| 4413 | |
| 4414 | // If new.target is equal to target then the function created |
| 4415 | // is already correctly setup and nothing else should be done |
| 4416 | // here. But if new.target is not equal to target then we are |
| 4417 | // have a Function builtin subclassing case and therefore the |
| 4418 | // function has wrong initial map. To fix that we create a new |
| 4419 | // function object with correct initial map. |
| 4420 | Handle<Object> unchecked_new_target = args.new_target(); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4421 | if (!unchecked_new_target->IsUndefined(isolate) && |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4422 | !unchecked_new_target.is_identical_to(target)) { |
| 4423 | Handle<JSReceiver> new_target = |
| 4424 | Handle<JSReceiver>::cast(unchecked_new_target); |
| 4425 | Handle<Map> initial_map; |
| 4426 | ASSIGN_RETURN_ON_EXCEPTION( |
| 4427 | isolate, initial_map, |
| 4428 | JSFunction::GetDerivedMap(isolate, target, new_target), JSFunction); |
| 4429 | |
| 4430 | Handle<SharedFunctionInfo> shared_info(function->shared(), isolate); |
| 4431 | Handle<Map> map = Map::AsLanguageMode( |
| 4432 | initial_map, shared_info->language_mode(), shared_info->kind()); |
| 4433 | |
| 4434 | Handle<Context> context(function->context(), isolate); |
| 4435 | function = isolate->factory()->NewFunctionFromSharedFunctionInfo( |
| 4436 | map, shared_info, context, NOT_TENURED); |
| 4437 | } |
| 4438 | return function; |
| 4439 | } |
| 4440 | |
| 4441 | } // namespace |
| 4442 | |
| 4443 | |
| 4444 | // ES6 section 19.2.1.1 Function ( p1, p2, ... , pn, body ) |
| 4445 | BUILTIN(FunctionConstructor) { |
| 4446 | HandleScope scope(isolate); |
| 4447 | Handle<JSFunction> result; |
| 4448 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 4449 | isolate, result, CreateDynamicFunction(isolate, args, "function")); |
| 4450 | return *result; |
| 4451 | } |
| 4452 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4453 | namespace { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4454 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4455 | Object* DoFunctionBind(Isolate* isolate, BuiltinArguments args) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4456 | HandleScope scope(isolate); |
| 4457 | DCHECK_LE(1, args.length()); |
| 4458 | if (!args.receiver()->IsCallable()) { |
| 4459 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 4460 | isolate, NewTypeError(MessageTemplate::kFunctionBind)); |
| 4461 | } |
| 4462 | |
| 4463 | // Allocate the bound function with the given {this_arg} and {args}. |
| 4464 | Handle<JSReceiver> target = args.at<JSReceiver>(0); |
| 4465 | Handle<Object> this_arg = isolate->factory()->undefined_value(); |
| 4466 | ScopedVector<Handle<Object>> argv(std::max(0, args.length() - 2)); |
| 4467 | if (args.length() > 1) { |
| 4468 | this_arg = args.at<Object>(1); |
| 4469 | for (int i = 2; i < args.length(); ++i) { |
| 4470 | argv[i - 2] = args.at<Object>(i); |
| 4471 | } |
| 4472 | } |
| 4473 | Handle<JSBoundFunction> function; |
| 4474 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 4475 | isolate, function, |
| 4476 | isolate->factory()->NewJSBoundFunction(target, this_arg, argv)); |
| 4477 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4478 | LookupIterator length_lookup(target, isolate->factory()->length_string(), |
| 4479 | target, LookupIterator::OWN); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4480 | // Setup the "length" property based on the "length" of the {target}. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4481 | // If the targets length is the default JSFunction accessor, we can keep the |
| 4482 | // accessor that's installed by default on the JSBoundFunction. It lazily |
| 4483 | // computes the value from the underlying internal length. |
| 4484 | if (!target->IsJSFunction() || |
| 4485 | length_lookup.state() != LookupIterator::ACCESSOR || |
| 4486 | !length_lookup.GetAccessors()->IsAccessorInfo()) { |
| 4487 | Handle<Object> length(Smi::FromInt(0), isolate); |
| 4488 | Maybe<PropertyAttributes> attributes = |
| 4489 | JSReceiver::GetPropertyAttributes(&length_lookup); |
| 4490 | if (!attributes.IsJust()) return isolate->heap()->exception(); |
| 4491 | if (attributes.FromJust() != ABSENT) { |
| 4492 | Handle<Object> target_length; |
| 4493 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, target_length, |
| 4494 | Object::GetProperty(&length_lookup)); |
| 4495 | if (target_length->IsNumber()) { |
| 4496 | length = isolate->factory()->NewNumber(std::max( |
| 4497 | 0.0, DoubleToInteger(target_length->Number()) - argv.length())); |
| 4498 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4499 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4500 | LookupIterator it(function, isolate->factory()->length_string(), function); |
| 4501 | DCHECK_EQ(LookupIterator::ACCESSOR, it.state()); |
| 4502 | RETURN_FAILURE_ON_EXCEPTION(isolate, |
| 4503 | JSObject::DefineOwnPropertyIgnoreAttributes( |
| 4504 | &it, length, it.property_attributes())); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4505 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4506 | |
| 4507 | // Setup the "name" property based on the "name" of the {target}. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4508 | // If the targets name is the default JSFunction accessor, we can keep the |
| 4509 | // accessor that's installed by default on the JSBoundFunction. It lazily |
| 4510 | // computes the value from the underlying internal name. |
| 4511 | LookupIterator name_lookup(target, isolate->factory()->name_string(), target, |
| 4512 | LookupIterator::OWN); |
| 4513 | if (!target->IsJSFunction() || |
| 4514 | name_lookup.state() != LookupIterator::ACCESSOR || |
| 4515 | !name_lookup.GetAccessors()->IsAccessorInfo()) { |
| 4516 | Handle<Object> target_name; |
| 4517 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, target_name, |
| 4518 | Object::GetProperty(&name_lookup)); |
| 4519 | Handle<String> name; |
| 4520 | if (target_name->IsString()) { |
| 4521 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 4522 | isolate, name, |
| 4523 | Name::ToFunctionName(Handle<String>::cast(target_name))); |
| 4524 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 4525 | isolate, name, isolate->factory()->NewConsString( |
| 4526 | isolate->factory()->bound__string(), name)); |
| 4527 | } else { |
| 4528 | name = isolate->factory()->bound__string(); |
| 4529 | } |
| 4530 | LookupIterator it(function, isolate->factory()->name_string()); |
| 4531 | DCHECK_EQ(LookupIterator::ACCESSOR, it.state()); |
| 4532 | RETURN_FAILURE_ON_EXCEPTION(isolate, |
| 4533 | JSObject::DefineOwnPropertyIgnoreAttributes( |
| 4534 | &it, name, it.property_attributes())); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4535 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4536 | return *function; |
| 4537 | } |
| 4538 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4539 | } // namespace |
| 4540 | |
| 4541 | // ES6 section 19.2.3.2 Function.prototype.bind ( thisArg, ...args ) |
| 4542 | BUILTIN(FunctionPrototypeBind) { return DoFunctionBind(isolate, args); } |
| 4543 | |
| 4544 | // TODO(verwaest): This is a temporary helper until the FastFunctionBind stub |
| 4545 | // can tailcall to the builtin directly. |
| 4546 | RUNTIME_FUNCTION(Runtime_FunctionBind) { |
| 4547 | DCHECK_EQ(2, args.length()); |
| 4548 | Arguments* incoming = reinterpret_cast<Arguments*>(args[0]); |
| 4549 | // Rewrap the arguments as builtins arguments. |
| 4550 | BuiltinArguments caller_args(incoming->length() + 3, |
| 4551 | incoming->arguments() + 1); |
| 4552 | return DoFunctionBind(isolate, caller_args); |
| 4553 | } |
| 4554 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4555 | // ES6 section 19.2.3.5 Function.prototype.toString ( ) |
| 4556 | BUILTIN(FunctionPrototypeToString) { |
| 4557 | HandleScope scope(isolate); |
| 4558 | Handle<Object> receiver = args.receiver(); |
| 4559 | if (receiver->IsJSBoundFunction()) { |
| 4560 | return *JSBoundFunction::ToString(Handle<JSBoundFunction>::cast(receiver)); |
| 4561 | } else if (receiver->IsJSFunction()) { |
| 4562 | return *JSFunction::ToString(Handle<JSFunction>::cast(receiver)); |
| 4563 | } |
| 4564 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 4565 | isolate, NewTypeError(MessageTemplate::kNotGeneric, |
| 4566 | isolate->factory()->NewStringFromAsciiChecked( |
| 4567 | "Function.prototype.toString"))); |
| 4568 | } |
| 4569 | |
| 4570 | |
| 4571 | // ES6 section 25.2.1.1 GeneratorFunction (p1, p2, ... , pn, body) |
| 4572 | BUILTIN(GeneratorFunctionConstructor) { |
| 4573 | HandleScope scope(isolate); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4574 | RETURN_RESULT_OR_FAILURE(isolate, |
| 4575 | CreateDynamicFunction(isolate, args, "function*")); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4576 | } |
| 4577 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4578 | BUILTIN(AsyncFunctionConstructor) { |
| 4579 | HandleScope scope(isolate); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4580 | Handle<JSFunction> func; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4581 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4582 | isolate, func, CreateDynamicFunction(isolate, args, "async function")); |
| 4583 | |
| 4584 | // Do not lazily compute eval position for AsyncFunction, as they may not be |
| 4585 | // determined after the function is resumed. |
| 4586 | Handle<Script> script = handle(Script::cast(func->shared()->script())); |
| 4587 | int position = script->GetEvalPosition(); |
| 4588 | USE(position); |
| 4589 | |
| 4590 | return *func; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4591 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4592 | |
| 4593 | // ES6 section 19.4.1.1 Symbol ( [ description ] ) for the [[Call]] case. |
| 4594 | BUILTIN(SymbolConstructor) { |
| 4595 | HandleScope scope(isolate); |
| 4596 | Handle<Symbol> result = isolate->factory()->NewSymbol(); |
| 4597 | Handle<Object> description = args.atOrUndefined(isolate, 1); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4598 | if (!description->IsUndefined(isolate)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4599 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, description, |
| 4600 | Object::ToString(isolate, description)); |
| 4601 | result->set_name(*description); |
| 4602 | } |
| 4603 | return *result; |
| 4604 | } |
| 4605 | |
| 4606 | |
| 4607 | // ES6 section 19.4.1.1 Symbol ( [ description ] ) for the [[Construct]] case. |
| 4608 | BUILTIN(SymbolConstructor_ConstructStub) { |
| 4609 | HandleScope scope(isolate); |
| 4610 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 4611 | isolate, NewTypeError(MessageTemplate::kNotConstructor, |
| 4612 | isolate->factory()->Symbol_string())); |
| 4613 | } |
| 4614 | |
| 4615 | |
| 4616 | // ES6 19.1.3.6 Object.prototype.toString |
| 4617 | BUILTIN(ObjectProtoToString) { |
| 4618 | HandleScope scope(isolate); |
| 4619 | Handle<Object> object = args.at<Object>(0); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4620 | RETURN_RESULT_OR_FAILURE(isolate, |
| 4621 | Object::ObjectProtoToString(isolate, object)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 4622 | } |
| 4623 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 4624 | // ----------------------------------------------------------------------------- |
| 4625 | // ES6 section 21.1 String Objects |
| 4626 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4627 | // ES6 section 21.1.2.1 String.fromCharCode ( ...codeUnits ) |
| 4628 | void Builtins::Generate_StringFromCharCode(CodeStubAssembler* assembler) { |
| 4629 | typedef CodeStubAssembler::Label Label; |
| 4630 | typedef compiler::Node Node; |
| 4631 | typedef CodeStubAssembler::Variable Variable; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 4632 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4633 | Node* code = assembler->Parameter(1); |
| 4634 | Node* context = assembler->Parameter(4); |
| 4635 | |
| 4636 | // Check if we have exactly one argument (plus the implicit receiver), i.e. |
| 4637 | // if the parent frame is not an arguments adaptor frame. |
| 4638 | Label if_oneargument(assembler), if_notoneargument(assembler); |
| 4639 | Node* parent_frame_pointer = assembler->LoadParentFramePointer(); |
| 4640 | Node* parent_frame_type = |
| 4641 | assembler->Load(MachineType::Pointer(), parent_frame_pointer, |
| 4642 | assembler->IntPtrConstant( |
| 4643 | CommonFrameConstants::kContextOrFrameTypeOffset)); |
| 4644 | assembler->Branch( |
| 4645 | assembler->WordEqual( |
| 4646 | parent_frame_type, |
| 4647 | assembler->SmiConstant(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))), |
| 4648 | &if_notoneargument, &if_oneargument); |
| 4649 | |
| 4650 | assembler->Bind(&if_oneargument); |
| 4651 | { |
| 4652 | // Single argument case, perform fast single character string cache lookup |
| 4653 | // for one-byte code units, or fall back to creating a single character |
| 4654 | // string on the fly otherwise. |
| 4655 | Node* code32 = assembler->TruncateTaggedToWord32(context, code); |
| 4656 | Node* code16 = assembler->Word32And( |
| 4657 | code32, assembler->Int32Constant(String::kMaxUtf16CodeUnit)); |
| 4658 | Node* result = assembler->StringFromCharCode(code16); |
| 4659 | assembler->Return(result); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 4660 | } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4661 | |
| 4662 | assembler->Bind(&if_notoneargument); |
| 4663 | { |
| 4664 | // Determine the resulting string length. |
| 4665 | Node* parent_frame_length = |
| 4666 | assembler->Load(MachineType::Pointer(), parent_frame_pointer, |
| 4667 | assembler->IntPtrConstant( |
| 4668 | ArgumentsAdaptorFrameConstants::kLengthOffset)); |
| 4669 | Node* length = assembler->SmiToWord(parent_frame_length); |
| 4670 | |
| 4671 | // Assume that the resulting string contains only one-byte characters. |
| 4672 | Node* result = assembler->AllocateSeqOneByteString(context, length); |
| 4673 | |
| 4674 | // Truncate all input parameters and append them to the resulting string. |
| 4675 | Variable var_offset(assembler, MachineType::PointerRepresentation()); |
| 4676 | Label loop(assembler, &var_offset), done_loop(assembler); |
| 4677 | var_offset.Bind(assembler->IntPtrConstant(0)); |
| 4678 | assembler->Goto(&loop); |
| 4679 | assembler->Bind(&loop); |
| 4680 | { |
| 4681 | // Load the current {offset}. |
| 4682 | Node* offset = var_offset.value(); |
| 4683 | |
| 4684 | // Check if we're done with the string. |
| 4685 | assembler->GotoIf(assembler->WordEqual(offset, length), &done_loop); |
| 4686 | |
| 4687 | // Load the next code point and truncate it to a 16-bit value. |
| 4688 | Node* code = assembler->Load( |
| 4689 | MachineType::AnyTagged(), parent_frame_pointer, |
| 4690 | assembler->IntPtrAdd( |
| 4691 | assembler->WordShl(assembler->IntPtrSub(length, offset), |
| 4692 | assembler->IntPtrConstant(kPointerSizeLog2)), |
| 4693 | assembler->IntPtrConstant( |
| 4694 | CommonFrameConstants::kFixedFrameSizeAboveFp - |
| 4695 | kPointerSize))); |
| 4696 | Node* code32 = assembler->TruncateTaggedToWord32(context, code); |
| 4697 | Node* code16 = assembler->Word32And( |
| 4698 | code32, assembler->Int32Constant(String::kMaxUtf16CodeUnit)); |
| 4699 | |
| 4700 | // Check if {code16} fits into a one-byte string. |
| 4701 | Label if_codeisonebyte(assembler), if_codeistwobyte(assembler); |
| 4702 | assembler->Branch( |
| 4703 | assembler->Int32LessThanOrEqual( |
| 4704 | code16, assembler->Int32Constant(String::kMaxOneByteCharCode)), |
| 4705 | &if_codeisonebyte, &if_codeistwobyte); |
| 4706 | |
| 4707 | assembler->Bind(&if_codeisonebyte); |
| 4708 | { |
| 4709 | // The {code16} fits into the SeqOneByteString {result}. |
| 4710 | assembler->StoreNoWriteBarrier( |
| 4711 | MachineRepresentation::kWord8, result, |
| 4712 | assembler->IntPtrAdd( |
| 4713 | assembler->IntPtrConstant(SeqOneByteString::kHeaderSize - |
| 4714 | kHeapObjectTag), |
| 4715 | offset), |
| 4716 | code16); |
| 4717 | var_offset.Bind( |
| 4718 | assembler->IntPtrAdd(offset, assembler->IntPtrConstant(1))); |
| 4719 | assembler->Goto(&loop); |
| 4720 | } |
| 4721 | |
| 4722 | assembler->Bind(&if_codeistwobyte); |
| 4723 | { |
| 4724 | // Allocate a SeqTwoByteString to hold the resulting string. |
| 4725 | Node* cresult = assembler->AllocateSeqTwoByteString(context, length); |
| 4726 | |
| 4727 | // Copy all characters that were previously written to the |
| 4728 | // SeqOneByteString in {result} over to the new {cresult}. |
| 4729 | Variable var_coffset(assembler, MachineType::PointerRepresentation()); |
| 4730 | Label cloop(assembler, &var_coffset), done_cloop(assembler); |
| 4731 | var_coffset.Bind(assembler->IntPtrConstant(0)); |
| 4732 | assembler->Goto(&cloop); |
| 4733 | assembler->Bind(&cloop); |
| 4734 | { |
| 4735 | Node* coffset = var_coffset.value(); |
| 4736 | assembler->GotoIf(assembler->WordEqual(coffset, offset), &done_cloop); |
| 4737 | Node* ccode = assembler->Load( |
| 4738 | MachineType::Uint8(), result, |
| 4739 | assembler->IntPtrAdd( |
| 4740 | assembler->IntPtrConstant(SeqOneByteString::kHeaderSize - |
| 4741 | kHeapObjectTag), |
| 4742 | coffset)); |
| 4743 | assembler->StoreNoWriteBarrier( |
| 4744 | MachineRepresentation::kWord16, cresult, |
| 4745 | assembler->IntPtrAdd( |
| 4746 | assembler->IntPtrConstant(SeqTwoByteString::kHeaderSize - |
| 4747 | kHeapObjectTag), |
| 4748 | assembler->WordShl(coffset, 1)), |
| 4749 | ccode); |
| 4750 | var_coffset.Bind( |
| 4751 | assembler->IntPtrAdd(coffset, assembler->IntPtrConstant(1))); |
| 4752 | assembler->Goto(&cloop); |
| 4753 | } |
| 4754 | |
| 4755 | // Write the pending {code16} to {offset}. |
| 4756 | assembler->Bind(&done_cloop); |
| 4757 | assembler->StoreNoWriteBarrier( |
| 4758 | MachineRepresentation::kWord16, cresult, |
| 4759 | assembler->IntPtrAdd( |
| 4760 | assembler->IntPtrConstant(SeqTwoByteString::kHeaderSize - |
| 4761 | kHeapObjectTag), |
| 4762 | assembler->WordShl(offset, 1)), |
| 4763 | code16); |
| 4764 | |
| 4765 | // Copy the remaining parameters to the SeqTwoByteString {cresult}. |
| 4766 | Label floop(assembler, &var_offset), done_floop(assembler); |
| 4767 | assembler->Goto(&floop); |
| 4768 | assembler->Bind(&floop); |
| 4769 | { |
| 4770 | // Compute the next {offset}. |
| 4771 | Node* offset = assembler->IntPtrAdd(var_offset.value(), |
| 4772 | assembler->IntPtrConstant(1)); |
| 4773 | |
| 4774 | // Check if we're done with the string. |
| 4775 | assembler->GotoIf(assembler->WordEqual(offset, length), &done_floop); |
| 4776 | |
| 4777 | // Load the next code point and truncate it to a 16-bit value. |
| 4778 | Node* code = assembler->Load( |
| 4779 | MachineType::AnyTagged(), parent_frame_pointer, |
| 4780 | assembler->IntPtrAdd( |
| 4781 | assembler->WordShl( |
| 4782 | assembler->IntPtrSub(length, offset), |
| 4783 | assembler->IntPtrConstant(kPointerSizeLog2)), |
| 4784 | assembler->IntPtrConstant( |
| 4785 | CommonFrameConstants::kFixedFrameSizeAboveFp - |
| 4786 | kPointerSize))); |
| 4787 | Node* code32 = assembler->TruncateTaggedToWord32(context, code); |
| 4788 | Node* code16 = assembler->Word32And( |
| 4789 | code32, assembler->Int32Constant(String::kMaxUtf16CodeUnit)); |
| 4790 | |
| 4791 | // Store the truncated {code} point at the next offset. |
| 4792 | assembler->StoreNoWriteBarrier( |
| 4793 | MachineRepresentation::kWord16, cresult, |
| 4794 | assembler->IntPtrAdd( |
| 4795 | assembler->IntPtrConstant(SeqTwoByteString::kHeaderSize - |
| 4796 | kHeapObjectTag), |
| 4797 | assembler->WordShl(offset, 1)), |
| 4798 | code16); |
| 4799 | var_offset.Bind(offset); |
| 4800 | assembler->Goto(&floop); |
| 4801 | } |
| 4802 | |
| 4803 | // Return the SeqTwoByteString. |
| 4804 | assembler->Bind(&done_floop); |
| 4805 | assembler->Return(cresult); |
| 4806 | } |
| 4807 | } |
| 4808 | |
| 4809 | assembler->Bind(&done_loop); |
| 4810 | assembler->Return(result); |
| 4811 | } |
| 4812 | } |
| 4813 | |
| 4814 | namespace { // for String.fromCodePoint |
| 4815 | |
| 4816 | bool IsValidCodePoint(Isolate* isolate, Handle<Object> value) { |
| 4817 | if (!value->IsNumber() && !Object::ToNumber(value).ToHandle(&value)) { |
| 4818 | return false; |
| 4819 | } |
| 4820 | |
| 4821 | if (Object::ToInteger(isolate, value).ToHandleChecked()->Number() != |
| 4822 | value->Number()) { |
| 4823 | return false; |
| 4824 | } |
| 4825 | |
| 4826 | if (value->Number() < 0 || value->Number() > 0x10FFFF) { |
| 4827 | return false; |
| 4828 | } |
| 4829 | |
| 4830 | return true; |
| 4831 | } |
| 4832 | |
| 4833 | uc32 NextCodePoint(Isolate* isolate, BuiltinArguments args, int index) { |
| 4834 | Handle<Object> value = args.at<Object>(1 + index); |
| 4835 | ASSIGN_RETURN_ON_EXCEPTION_VALUE(isolate, value, Object::ToNumber(value), -1); |
| 4836 | if (!IsValidCodePoint(isolate, value)) { |
| 4837 | isolate->Throw(*isolate->factory()->NewRangeError( |
| 4838 | MessageTemplate::kInvalidCodePoint, value)); |
| 4839 | return -1; |
| 4840 | } |
| 4841 | return DoubleToUint32(value->Number()); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 4842 | } |
| 4843 | |
| 4844 | } // namespace |
| 4845 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4846 | // ES6 section 21.1.2.2 String.fromCodePoint ( ...codePoints ) |
| 4847 | BUILTIN(StringFromCodePoint) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 4848 | HandleScope scope(isolate); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 4849 | int const length = args.length() - 1; |
| 4850 | if (length == 0) return isolate->heap()->empty_string(); |
| 4851 | DCHECK_LT(0, length); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4852 | |
| 4853 | // Optimistically assume that the resulting String contains only one byte |
| 4854 | // characters. |
| 4855 | List<uint8_t> one_byte_buffer(length); |
| 4856 | uc32 code = 0; |
| 4857 | int index; |
| 4858 | for (index = 0; index < length; index++) { |
| 4859 | code = NextCodePoint(isolate, args, index); |
| 4860 | if (code < 0) { |
| 4861 | return isolate->heap()->exception(); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 4862 | } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4863 | if (code > String::kMaxOneByteCharCode) { |
| 4864 | break; |
| 4865 | } |
| 4866 | one_byte_buffer.Add(code); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 4867 | } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4868 | |
| 4869 | if (index == length) { |
| 4870 | RETURN_RESULT_OR_FAILURE(isolate, isolate->factory()->NewStringFromOneByte( |
| 4871 | one_byte_buffer.ToConstVector())); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 4872 | } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 4873 | |
| 4874 | List<uc16> two_byte_buffer(length - index); |
| 4875 | |
| 4876 | while (true) { |
| 4877 | if (code <= unibrow::Utf16::kMaxNonSurrogateCharCode) { |
| 4878 | two_byte_buffer.Add(code); |
| 4879 | } else { |
| 4880 | two_byte_buffer.Add(unibrow::Utf16::LeadSurrogate(code)); |
| 4881 | two_byte_buffer.Add(unibrow::Utf16::TrailSurrogate(code)); |
| 4882 | } |
| 4883 | |
| 4884 | if (++index == length) { |
| 4885 | break; |
| 4886 | } |
| 4887 | code = NextCodePoint(isolate, args, index); |
| 4888 | if (code < 0) { |
| 4889 | return isolate->heap()->exception(); |
| 4890 | } |
| 4891 | } |
| 4892 | |
| 4893 | Handle<SeqTwoByteString> result; |
| 4894 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| 4895 | isolate, result, |
| 4896 | isolate->factory()->NewRawTwoByteString(one_byte_buffer.length() + |
| 4897 | two_byte_buffer.length())); |
| 4898 | |
| 4899 | CopyChars(result->GetChars(), one_byte_buffer.ToConstVector().start(), |
| 4900 | one_byte_buffer.length()); |
| 4901 | CopyChars(result->GetChars() + one_byte_buffer.length(), |
| 4902 | two_byte_buffer.ToConstVector().start(), two_byte_buffer.length()); |
| 4903 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 4904 | return *result; |
| 4905 | } |
| 4906 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 4907 | // ES6 section 21.1.3.1 String.prototype.charAt ( pos ) |
| 4908 | void Builtins::Generate_StringPrototypeCharAt(CodeStubAssembler* assembler) { |
| 4909 | typedef CodeStubAssembler::Label Label; |
| 4910 | typedef compiler::Node Node; |
| 4911 | typedef CodeStubAssembler::Variable Variable; |
| 4912 | |
| 4913 | Node* receiver = assembler->Parameter(0); |
| 4914 | Node* position = assembler->Parameter(1); |
| 4915 | Node* context = assembler->Parameter(4); |
| 4916 | |
| 4917 | // Check that {receiver} is coercible to Object and convert it to a String. |
| 4918 | receiver = |
| 4919 | assembler->ToThisString(context, receiver, "String.prototype.charAt"); |
| 4920 | |
| 4921 | // Convert the {position} to a Smi and check that it's in bounds of the |
| 4922 | // {receiver}. |
| 4923 | // TODO(bmeurer): Find an abstraction for this! |
| 4924 | { |
| 4925 | // Check if the {position} is already a Smi. |
| 4926 | Variable var_position(assembler, MachineRepresentation::kTagged); |
| 4927 | var_position.Bind(position); |
| 4928 | Label if_positionissmi(assembler), |
| 4929 | if_positionisnotsmi(assembler, Label::kDeferred); |
| 4930 | assembler->Branch(assembler->WordIsSmi(position), &if_positionissmi, |
| 4931 | &if_positionisnotsmi); |
| 4932 | assembler->Bind(&if_positionisnotsmi); |
| 4933 | { |
| 4934 | // Convert the {position} to an Integer via the ToIntegerStub. |
| 4935 | Callable callable = CodeFactory::ToInteger(assembler->isolate()); |
| 4936 | Node* index = assembler->CallStub(callable, context, position); |
| 4937 | |
| 4938 | // Check if the resulting {index} is now a Smi. |
| 4939 | Label if_indexissmi(assembler, Label::kDeferred), |
| 4940 | if_indexisnotsmi(assembler, Label::kDeferred); |
| 4941 | assembler->Branch(assembler->WordIsSmi(index), &if_indexissmi, |
| 4942 | &if_indexisnotsmi); |
| 4943 | |
| 4944 | assembler->Bind(&if_indexissmi); |
| 4945 | { |
| 4946 | var_position.Bind(index); |
| 4947 | assembler->Goto(&if_positionissmi); |
| 4948 | } |
| 4949 | |
| 4950 | assembler->Bind(&if_indexisnotsmi); |
| 4951 | { |
| 4952 | // The ToIntegerStub canonicalizes everything in Smi range to Smi |
| 4953 | // representation, so any HeapNumber returned is not in Smi range. |
| 4954 | // The only exception here is -0.0, which we treat as 0. |
| 4955 | Node* index_value = assembler->LoadHeapNumberValue(index); |
| 4956 | Label if_indexiszero(assembler, Label::kDeferred), |
| 4957 | if_indexisnotzero(assembler, Label::kDeferred); |
| 4958 | assembler->Branch(assembler->Float64Equal( |
| 4959 | index_value, assembler->Float64Constant(0.0)), |
| 4960 | &if_indexiszero, &if_indexisnotzero); |
| 4961 | |
| 4962 | assembler->Bind(&if_indexiszero); |
| 4963 | { |
| 4964 | var_position.Bind(assembler->SmiConstant(Smi::FromInt(0))); |
| 4965 | assembler->Goto(&if_positionissmi); |
| 4966 | } |
| 4967 | |
| 4968 | assembler->Bind(&if_indexisnotzero); |
| 4969 | { |
| 4970 | // The {index} is some other integral Number, that is definitely |
| 4971 | // neither -0.0 nor in Smi range. |
| 4972 | assembler->Return(assembler->EmptyStringConstant()); |
| 4973 | } |
| 4974 | } |
| 4975 | } |
| 4976 | assembler->Bind(&if_positionissmi); |
| 4977 | position = var_position.value(); |
| 4978 | |
| 4979 | // Determine the actual length of the {receiver} String. |
| 4980 | Node* receiver_length = |
| 4981 | assembler->LoadObjectField(receiver, String::kLengthOffset); |
| 4982 | |
| 4983 | // Return "" if the Smi {position} is outside the bounds of the {receiver}. |
| 4984 | Label if_positioninbounds(assembler), |
| 4985 | if_positionnotinbounds(assembler, Label::kDeferred); |
| 4986 | assembler->Branch(assembler->SmiAboveOrEqual(position, receiver_length), |
| 4987 | &if_positionnotinbounds, &if_positioninbounds); |
| 4988 | assembler->Bind(&if_positionnotinbounds); |
| 4989 | assembler->Return(assembler->EmptyStringConstant()); |
| 4990 | assembler->Bind(&if_positioninbounds); |
| 4991 | } |
| 4992 | |
| 4993 | // Load the character code at the {position} from the {receiver}. |
| 4994 | Node* code = assembler->StringCharCodeAt(receiver, position); |
| 4995 | |
| 4996 | // And return the single character string with only that {code}. |
| 4997 | Node* result = assembler->StringFromCharCode(code); |
| 4998 | assembler->Return(result); |
| 4999 | } |
| 5000 | |
| 5001 | // ES6 section 21.1.3.2 String.prototype.charCodeAt ( pos ) |
| 5002 | void Builtins::Generate_StringPrototypeCharCodeAt( |
| 5003 | CodeStubAssembler* assembler) { |
| 5004 | typedef CodeStubAssembler::Label Label; |
| 5005 | typedef compiler::Node Node; |
| 5006 | typedef CodeStubAssembler::Variable Variable; |
| 5007 | |
| 5008 | Node* receiver = assembler->Parameter(0); |
| 5009 | Node* position = assembler->Parameter(1); |
| 5010 | Node* context = assembler->Parameter(4); |
| 5011 | |
| 5012 | // Check that {receiver} is coercible to Object and convert it to a String. |
| 5013 | receiver = |
| 5014 | assembler->ToThisString(context, receiver, "String.prototype.charCodeAt"); |
| 5015 | |
| 5016 | // Convert the {position} to a Smi and check that it's in bounds of the |
| 5017 | // {receiver}. |
| 5018 | // TODO(bmeurer): Find an abstraction for this! |
| 5019 | { |
| 5020 | // Check if the {position} is already a Smi. |
| 5021 | Variable var_position(assembler, MachineRepresentation::kTagged); |
| 5022 | var_position.Bind(position); |
| 5023 | Label if_positionissmi(assembler), |
| 5024 | if_positionisnotsmi(assembler, Label::kDeferred); |
| 5025 | assembler->Branch(assembler->WordIsSmi(position), &if_positionissmi, |
| 5026 | &if_positionisnotsmi); |
| 5027 | assembler->Bind(&if_positionisnotsmi); |
| 5028 | { |
| 5029 | // Convert the {position} to an Integer via the ToIntegerStub. |
| 5030 | Callable callable = CodeFactory::ToInteger(assembler->isolate()); |
| 5031 | Node* index = assembler->CallStub(callable, context, position); |
| 5032 | |
| 5033 | // Check if the resulting {index} is now a Smi. |
| 5034 | Label if_indexissmi(assembler, Label::kDeferred), |
| 5035 | if_indexisnotsmi(assembler, Label::kDeferred); |
| 5036 | assembler->Branch(assembler->WordIsSmi(index), &if_indexissmi, |
| 5037 | &if_indexisnotsmi); |
| 5038 | |
| 5039 | assembler->Bind(&if_indexissmi); |
| 5040 | { |
| 5041 | var_position.Bind(index); |
| 5042 | assembler->Goto(&if_positionissmi); |
| 5043 | } |
| 5044 | |
| 5045 | assembler->Bind(&if_indexisnotsmi); |
| 5046 | { |
| 5047 | // The ToIntegerStub canonicalizes everything in Smi range to Smi |
| 5048 | // representation, so any HeapNumber returned is not in Smi range. |
| 5049 | // The only exception here is -0.0, which we treat as 0. |
| 5050 | Node* index_value = assembler->LoadHeapNumberValue(index); |
| 5051 | Label if_indexiszero(assembler, Label::kDeferred), |
| 5052 | if_indexisnotzero(assembler, Label::kDeferred); |
| 5053 | assembler->Branch(assembler->Float64Equal( |
| 5054 | index_value, assembler->Float64Constant(0.0)), |
| 5055 | &if_indexiszero, &if_indexisnotzero); |
| 5056 | |
| 5057 | assembler->Bind(&if_indexiszero); |
| 5058 | { |
| 5059 | var_position.Bind(assembler->SmiConstant(Smi::FromInt(0))); |
| 5060 | assembler->Goto(&if_positionissmi); |
| 5061 | } |
| 5062 | |
| 5063 | assembler->Bind(&if_indexisnotzero); |
| 5064 | { |
| 5065 | // The {index} is some other integral Number, that is definitely |
| 5066 | // neither -0.0 nor in Smi range. |
| 5067 | assembler->Return(assembler->NaNConstant()); |
| 5068 | } |
| 5069 | } |
| 5070 | } |
| 5071 | assembler->Bind(&if_positionissmi); |
| 5072 | position = var_position.value(); |
| 5073 | |
| 5074 | // Determine the actual length of the {receiver} String. |
| 5075 | Node* receiver_length = |
| 5076 | assembler->LoadObjectField(receiver, String::kLengthOffset); |
| 5077 | |
| 5078 | // Return NaN if the Smi {position} is outside the bounds of the {receiver}. |
| 5079 | Label if_positioninbounds(assembler), |
| 5080 | if_positionnotinbounds(assembler, Label::kDeferred); |
| 5081 | assembler->Branch(assembler->SmiAboveOrEqual(position, receiver_length), |
| 5082 | &if_positionnotinbounds, &if_positioninbounds); |
| 5083 | assembler->Bind(&if_positionnotinbounds); |
| 5084 | assembler->Return(assembler->NaNConstant()); |
| 5085 | assembler->Bind(&if_positioninbounds); |
| 5086 | } |
| 5087 | |
| 5088 | // Load the character at the {position} from the {receiver}. |
| 5089 | Node* value = assembler->StringCharCodeAt(receiver, position); |
| 5090 | Node* result = assembler->SmiFromWord32(value); |
| 5091 | assembler->Return(result); |
| 5092 | } |
| 5093 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5094 | // ES6 section 21.1.3.25 String.prototype.trim () |
| 5095 | BUILTIN(StringPrototypeTrim) { |
| 5096 | HandleScope scope(isolate); |
| 5097 | TO_THIS_STRING(string, "String.prototype.trim"); |
| 5098 | return *String::Trim(string, String::kTrim); |
| 5099 | } |
| 5100 | |
| 5101 | // Non-standard WebKit extension |
| 5102 | BUILTIN(StringPrototypeTrimLeft) { |
| 5103 | HandleScope scope(isolate); |
| 5104 | TO_THIS_STRING(string, "String.prototype.trimLeft"); |
| 5105 | return *String::Trim(string, String::kTrimLeft); |
| 5106 | } |
| 5107 | |
| 5108 | // Non-standard WebKit extension |
| 5109 | BUILTIN(StringPrototypeTrimRight) { |
| 5110 | HandleScope scope(isolate); |
| 5111 | TO_THIS_STRING(string, "String.prototype.trimRight"); |
| 5112 | return *String::Trim(string, String::kTrimRight); |
| 5113 | } |
| 5114 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5115 | // ----------------------------------------------------------------------------- |
| 5116 | // ES6 section 21.1 ArrayBuffer Objects |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5117 | |
| 5118 | // ES6 section 24.1.2.1 ArrayBuffer ( length ) for the [[Call]] case. |
| 5119 | BUILTIN(ArrayBufferConstructor) { |
| 5120 | HandleScope scope(isolate); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5121 | Handle<JSFunction> target = args.target<JSFunction>(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5122 | DCHECK(*target == target->native_context()->array_buffer_fun() || |
| 5123 | *target == target->native_context()->shared_array_buffer_fun()); |
| 5124 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 5125 | isolate, NewTypeError(MessageTemplate::kConstructorNotFunction, |
| 5126 | handle(target->shared()->name(), isolate))); |
| 5127 | } |
| 5128 | |
| 5129 | |
| 5130 | // ES6 section 24.1.2.1 ArrayBuffer ( length ) for the [[Construct]] case. |
| 5131 | BUILTIN(ArrayBufferConstructor_ConstructStub) { |
| 5132 | HandleScope scope(isolate); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5133 | Handle<JSFunction> target = args.target<JSFunction>(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5134 | Handle<JSReceiver> new_target = Handle<JSReceiver>::cast(args.new_target()); |
| 5135 | Handle<Object> length = args.atOrUndefined(isolate, 1); |
| 5136 | DCHECK(*target == target->native_context()->array_buffer_fun() || |
| 5137 | *target == target->native_context()->shared_array_buffer_fun()); |
| 5138 | Handle<Object> number_length; |
| 5139 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, number_length, |
| 5140 | Object::ToInteger(isolate, length)); |
| 5141 | if (number_length->Number() < 0.0) { |
| 5142 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 5143 | isolate, NewRangeError(MessageTemplate::kInvalidArrayBufferLength)); |
| 5144 | } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5145 | Handle<JSObject> result; |
| 5146 | ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result, |
| 5147 | JSObject::New(target, new_target)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5148 | size_t byte_length; |
| 5149 | if (!TryNumberToSize(isolate, *number_length, &byte_length)) { |
| 5150 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 5151 | isolate, NewRangeError(MessageTemplate::kInvalidArrayBufferLength)); |
| 5152 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5153 | SharedFlag shared_flag = |
| 5154 | (*target == target->native_context()->array_buffer_fun()) |
| 5155 | ? SharedFlag::kNotShared |
| 5156 | : SharedFlag::kShared; |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5157 | if (!JSArrayBuffer::SetupAllocatingData(Handle<JSArrayBuffer>::cast(result), |
| 5158 | isolate, byte_length, true, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5159 | shared_flag)) { |
| 5160 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 5161 | isolate, NewRangeError(MessageTemplate::kArrayBufferAllocationFailed)); |
| 5162 | } |
| 5163 | return *result; |
| 5164 | } |
| 5165 | |
| 5166 | |
| 5167 | // ES6 section 24.1.3.1 ArrayBuffer.isView ( arg ) |
| 5168 | BUILTIN(ArrayBufferIsView) { |
| 5169 | SealHandleScope shs(isolate); |
| 5170 | DCHECK_EQ(2, args.length()); |
| 5171 | Object* arg = args[1]; |
| 5172 | return isolate->heap()->ToBoolean(arg->IsJSArrayBufferView()); |
| 5173 | } |
| 5174 | |
| 5175 | |
| 5176 | // ES6 section 26.2.1.1 Proxy ( target, handler ) for the [[Call]] case. |
| 5177 | BUILTIN(ProxyConstructor) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5178 | HandleScope scope(isolate); |
| 5179 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 5180 | isolate, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5181 | NewTypeError(MessageTemplate::kConstructorNotFunction, |
| 5182 | isolate->factory()->NewStringFromAsciiChecked("Proxy"))); |
| 5183 | } |
| 5184 | |
| 5185 | |
| 5186 | // ES6 section 26.2.1.1 Proxy ( target, handler ) for the [[Construct]] case. |
| 5187 | BUILTIN(ProxyConstructor_ConstructStub) { |
| 5188 | HandleScope scope(isolate); |
| 5189 | DCHECK(isolate->proxy_function()->IsConstructor()); |
| 5190 | Handle<Object> target = args.atOrUndefined(isolate, 1); |
| 5191 | Handle<Object> handler = args.atOrUndefined(isolate, 2); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5192 | RETURN_RESULT_OR_FAILURE(isolate, JSProxy::New(isolate, target, handler)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5193 | } |
| 5194 | |
| 5195 | |
| 5196 | // ----------------------------------------------------------------------------- |
| 5197 | // Throwers for restricted function properties and strict arguments object |
| 5198 | // properties |
| 5199 | |
| 5200 | |
| 5201 | BUILTIN(RestrictedFunctionPropertiesThrower) { |
| 5202 | HandleScope scope(isolate); |
| 5203 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 5204 | isolate, NewTypeError(MessageTemplate::kRestrictedFunctionProperties)); |
| 5205 | } |
| 5206 | |
| 5207 | |
| 5208 | BUILTIN(RestrictedStrictArgumentsPropertiesThrower) { |
| 5209 | HandleScope scope(isolate); |
| 5210 | THROW_NEW_ERROR_RETURN_FAILURE( |
| 5211 | isolate, NewTypeError(MessageTemplate::kStrictPoisonPill)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5212 | } |
| 5213 | |
| 5214 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5215 | // ----------------------------------------------------------------------------- |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5216 | // |
| 5217 | |
| 5218 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5219 | namespace { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5220 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5221 | // Returns the holder JSObject if the function can legally be called with this |
| 5222 | // receiver. Returns nullptr if the call is illegal. |
| 5223 | // TODO(dcarney): CallOptimization duplicates this logic, merge. |
| 5224 | JSObject* GetCompatibleReceiver(Isolate* isolate, FunctionTemplateInfo* info, |
| 5225 | JSObject* receiver) { |
| 5226 | Object* recv_type = info->signature(); |
| 5227 | // No signature, return holder. |
| 5228 | if (!recv_type->IsFunctionTemplateInfo()) return receiver; |
| 5229 | FunctionTemplateInfo* signature = FunctionTemplateInfo::cast(recv_type); |
| 5230 | |
| 5231 | // Check the receiver. Fast path for receivers with no hidden prototypes. |
| 5232 | if (signature->IsTemplateFor(receiver)) return receiver; |
| 5233 | if (!receiver->map()->has_hidden_prototype()) return nullptr; |
| 5234 | for (PrototypeIterator iter(isolate, receiver, kStartAtPrototype, |
| 5235 | PrototypeIterator::END_AT_NON_HIDDEN); |
| 5236 | !iter.IsAtEnd(); iter.Advance()) { |
| 5237 | JSObject* current = iter.GetCurrent<JSObject>(); |
| 5238 | if (signature->IsTemplateFor(current)) return current; |
| 5239 | } |
| 5240 | return nullptr; |
| 5241 | } |
| 5242 | |
| 5243 | template <bool is_construct> |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5244 | MUST_USE_RESULT MaybeHandle<Object> HandleApiCallHelper( |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5245 | Isolate* isolate, Handle<HeapObject> function, |
| 5246 | Handle<HeapObject> new_target, Handle<FunctionTemplateInfo> fun_data, |
| 5247 | Handle<Object> receiver, BuiltinArguments args) { |
| 5248 | Handle<JSObject> js_receiver; |
| 5249 | JSObject* raw_holder; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5250 | if (is_construct) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5251 | DCHECK(args.receiver()->IsTheHole(isolate)); |
| 5252 | if (fun_data->instance_template()->IsUndefined(isolate)) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5253 | v8::Local<ObjectTemplate> templ = |
| 5254 | ObjectTemplate::New(reinterpret_cast<v8::Isolate*>(isolate), |
| 5255 | ToApiHandle<v8::FunctionTemplate>(fun_data)); |
| 5256 | fun_data->set_instance_template(*Utils::OpenHandle(*templ)); |
| 5257 | } |
| 5258 | Handle<ObjectTemplateInfo> instance_template( |
| 5259 | ObjectTemplateInfo::cast(fun_data->instance_template()), isolate); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5260 | ASSIGN_RETURN_ON_EXCEPTION( |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5261 | isolate, js_receiver, |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5262 | ApiNatives::InstantiateObject(instance_template, |
| 5263 | Handle<JSReceiver>::cast(new_target)), |
| 5264 | Object); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5265 | args[0] = *js_receiver; |
| 5266 | DCHECK_EQ(*js_receiver, *args.receiver()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5267 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5268 | raw_holder = *js_receiver; |
| 5269 | } else { |
| 5270 | DCHECK(receiver->IsJSReceiver()); |
| 5271 | |
| 5272 | if (!receiver->IsJSObject()) { |
| 5273 | // This function cannot be called with the given receiver. Abort! |
| 5274 | THROW_NEW_ERROR( |
| 5275 | isolate, NewTypeError(MessageTemplate::kIllegalInvocation), Object); |
| 5276 | } |
| 5277 | |
| 5278 | js_receiver = Handle<JSObject>::cast(receiver); |
| 5279 | |
| 5280 | if (!fun_data->accept_any_receiver() && |
| 5281 | js_receiver->IsAccessCheckNeeded() && |
| 5282 | !isolate->MayAccess(handle(isolate->context()), js_receiver)) { |
| 5283 | isolate->ReportFailedAccessCheck(js_receiver); |
| 5284 | RETURN_EXCEPTION_IF_SCHEDULED_EXCEPTION(isolate, Object); |
| 5285 | } |
| 5286 | |
| 5287 | raw_holder = GetCompatibleReceiver(isolate, *fun_data, *js_receiver); |
| 5288 | |
| 5289 | if (raw_holder == nullptr) { |
| 5290 | // This function cannot be called with the given receiver. Abort! |
| 5291 | THROW_NEW_ERROR( |
| 5292 | isolate, NewTypeError(MessageTemplate::kIllegalInvocation), Object); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5293 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5294 | } |
| 5295 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5296 | Object* raw_call_data = fun_data->call_code(); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5297 | if (!raw_call_data->IsUndefined(isolate)) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5298 | DCHECK(raw_call_data->IsCallHandlerInfo()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5299 | CallHandlerInfo* call_data = CallHandlerInfo::cast(raw_call_data); |
| 5300 | Object* callback_obj = call_data->callback(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5301 | v8::FunctionCallback callback = |
| 5302 | v8::ToCData<v8::FunctionCallback>(callback_obj); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5303 | Object* data_obj = call_data->data(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5304 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5305 | LOG(isolate, ApiObjectAccess("call", JSObject::cast(*js_receiver))); |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 5306 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5307 | FunctionCallbackArguments custom(isolate, data_obj, *function, raw_holder, |
| 5308 | *new_target, &args[0] - 1, |
| 5309 | args.length() - 1); |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 5310 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5311 | Handle<Object> result = custom.Call(callback); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5312 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5313 | RETURN_EXCEPTION_IF_SCHEDULED_EXCEPTION(isolate, Object); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5314 | if (result.is_null()) { |
| 5315 | if (is_construct) return js_receiver; |
| 5316 | return isolate->factory()->undefined_value(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5317 | } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5318 | // Rebox the result. |
| 5319 | result->VerifyApiCallResultType(); |
| 5320 | if (!is_construct || result->IsJSObject()) return handle(*result, isolate); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5321 | } |
| 5322 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5323 | return js_receiver; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5324 | } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 5325 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5326 | } // namespace |
| 5327 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 5328 | |
| 5329 | BUILTIN(HandleApiCall) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5330 | HandleScope scope(isolate); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5331 | Handle<JSFunction> function = args.target<JSFunction>(); |
| 5332 | Handle<Object> receiver = args.receiver(); |
| 5333 | Handle<HeapObject> new_target = args.new_target(); |
| 5334 | Handle<FunctionTemplateInfo> fun_data(function->shared()->get_api_func_data(), |
| 5335 | isolate); |
| 5336 | if (new_target->IsJSReceiver()) { |
| 5337 | RETURN_RESULT_OR_FAILURE( |
| 5338 | isolate, HandleApiCallHelper<true>(isolate, function, new_target, |
| 5339 | fun_data, receiver, args)); |
| 5340 | } else { |
| 5341 | RETURN_RESULT_OR_FAILURE( |
| 5342 | isolate, HandleApiCallHelper<false>(isolate, function, new_target, |
| 5343 | fun_data, receiver, args)); |
| 5344 | } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 5345 | } |
| 5346 | |
| 5347 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5348 | Handle<Code> Builtins::CallFunction(ConvertReceiverMode mode, |
| 5349 | TailCallMode tail_call_mode) { |
| 5350 | switch (tail_call_mode) { |
| 5351 | case TailCallMode::kDisallow: |
| 5352 | switch (mode) { |
| 5353 | case ConvertReceiverMode::kNullOrUndefined: |
| 5354 | return CallFunction_ReceiverIsNullOrUndefined(); |
| 5355 | case ConvertReceiverMode::kNotNullOrUndefined: |
| 5356 | return CallFunction_ReceiverIsNotNullOrUndefined(); |
| 5357 | case ConvertReceiverMode::kAny: |
| 5358 | return CallFunction_ReceiverIsAny(); |
| 5359 | } |
| 5360 | break; |
| 5361 | case TailCallMode::kAllow: |
| 5362 | switch (mode) { |
| 5363 | case ConvertReceiverMode::kNullOrUndefined: |
| 5364 | return TailCallFunction_ReceiverIsNullOrUndefined(); |
| 5365 | case ConvertReceiverMode::kNotNullOrUndefined: |
| 5366 | return TailCallFunction_ReceiverIsNotNullOrUndefined(); |
| 5367 | case ConvertReceiverMode::kAny: |
| 5368 | return TailCallFunction_ReceiverIsAny(); |
| 5369 | } |
| 5370 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5371 | } |
| 5372 | UNREACHABLE(); |
| 5373 | return Handle<Code>::null(); |
| 5374 | } |
| 5375 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5376 | Handle<Code> Builtins::Call(ConvertReceiverMode mode, |
| 5377 | TailCallMode tail_call_mode) { |
| 5378 | switch (tail_call_mode) { |
| 5379 | case TailCallMode::kDisallow: |
| 5380 | switch (mode) { |
| 5381 | case ConvertReceiverMode::kNullOrUndefined: |
| 5382 | return Call_ReceiverIsNullOrUndefined(); |
| 5383 | case ConvertReceiverMode::kNotNullOrUndefined: |
| 5384 | return Call_ReceiverIsNotNullOrUndefined(); |
| 5385 | case ConvertReceiverMode::kAny: |
| 5386 | return Call_ReceiverIsAny(); |
| 5387 | } |
| 5388 | break; |
| 5389 | case TailCallMode::kAllow: |
| 5390 | switch (mode) { |
| 5391 | case ConvertReceiverMode::kNullOrUndefined: |
| 5392 | return TailCall_ReceiverIsNullOrUndefined(); |
| 5393 | case ConvertReceiverMode::kNotNullOrUndefined: |
| 5394 | return TailCall_ReceiverIsNotNullOrUndefined(); |
| 5395 | case ConvertReceiverMode::kAny: |
| 5396 | return TailCall_ReceiverIsAny(); |
| 5397 | } |
| 5398 | break; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5399 | } |
| 5400 | UNREACHABLE(); |
| 5401 | return Handle<Code>::null(); |
| 5402 | } |
| 5403 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5404 | Handle<Code> Builtins::CallBoundFunction(TailCallMode tail_call_mode) { |
| 5405 | switch (tail_call_mode) { |
| 5406 | case TailCallMode::kDisallow: |
| 5407 | return CallBoundFunction(); |
| 5408 | case TailCallMode::kAllow: |
| 5409 | return TailCallBoundFunction(); |
| 5410 | } |
| 5411 | UNREACHABLE(); |
| 5412 | return Handle<Code>::null(); |
| 5413 | } |
| 5414 | |
| 5415 | Handle<Code> Builtins::InterpreterPushArgsAndCall(TailCallMode tail_call_mode) { |
| 5416 | switch (tail_call_mode) { |
| 5417 | case TailCallMode::kDisallow: |
| 5418 | return InterpreterPushArgsAndCall(); |
| 5419 | case TailCallMode::kAllow: |
| 5420 | return InterpreterPushArgsAndTailCall(); |
| 5421 | } |
| 5422 | UNREACHABLE(); |
| 5423 | return Handle<Code>::null(); |
| 5424 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5425 | |
| 5426 | namespace { |
| 5427 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5428 | class RelocatableArguments : public BuiltinArguments, public Relocatable { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5429 | public: |
| 5430 | RelocatableArguments(Isolate* isolate, int length, Object** arguments) |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5431 | : BuiltinArguments(length, arguments), Relocatable(isolate) {} |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5432 | |
| 5433 | virtual inline void IterateInstance(ObjectVisitor* v) { |
| 5434 | if (length() == 0) return; |
| 5435 | v->VisitPointers(lowest_address(), highest_address() + 1); |
| 5436 | } |
| 5437 | |
| 5438 | private: |
| 5439 | DISALLOW_COPY_AND_ASSIGN(RelocatableArguments); |
| 5440 | }; |
| 5441 | |
| 5442 | } // namespace |
| 5443 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5444 | MaybeHandle<Object> Builtins::InvokeApiFunction(Isolate* isolate, |
| 5445 | Handle<HeapObject> function, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5446 | Handle<Object> receiver, |
| 5447 | int argc, |
| 5448 | Handle<Object> args[]) { |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5449 | DCHECK(function->IsFunctionTemplateInfo() || |
| 5450 | (function->IsJSFunction() && |
| 5451 | JSFunction::cast(*function)->shared()->IsApiFunction())); |
| 5452 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5453 | // Do proper receiver conversion for non-strict mode api functions. |
| 5454 | if (!receiver->IsJSReceiver()) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5455 | if (function->IsFunctionTemplateInfo() || |
| 5456 | is_sloppy(JSFunction::cast(*function)->shared()->language_mode())) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5457 | ASSIGN_RETURN_ON_EXCEPTION(isolate, receiver, |
| 5458 | Object::ConvertReceiver(isolate, receiver), |
| 5459 | Object); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5460 | } |
| 5461 | } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5462 | |
| 5463 | Handle<FunctionTemplateInfo> fun_data = |
| 5464 | function->IsFunctionTemplateInfo() |
| 5465 | ? Handle<FunctionTemplateInfo>::cast(function) |
| 5466 | : handle(JSFunction::cast(*function)->shared()->get_api_func_data(), |
| 5467 | isolate); |
| 5468 | Handle<HeapObject> new_target = isolate->factory()->undefined_value(); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5469 | // Construct BuiltinArguments object: |
| 5470 | // new target, function, arguments reversed, receiver. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5471 | const int kBufferSize = 32; |
| 5472 | Object* small_argv[kBufferSize]; |
| 5473 | Object** argv; |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5474 | if (argc + 3 <= kBufferSize) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5475 | argv = small_argv; |
| 5476 | } else { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5477 | argv = new Object*[argc + 3]; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5478 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5479 | argv[argc + 2] = *receiver; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5480 | for (int i = 0; i < argc; ++i) { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5481 | argv[argc - i + 1] = *args[i]; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5482 | } |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5483 | argv[1] = *function; |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5484 | argv[0] = *new_target; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5485 | MaybeHandle<Object> result; |
| 5486 | { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5487 | RelocatableArguments arguments(isolate, argc + 3, &argv[argc] + 2); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5488 | result = HandleApiCallHelper<false>(isolate, function, new_target, fun_data, |
| 5489 | receiver, arguments); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5490 | } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5491 | if (argv != small_argv) delete[] argv; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5492 | return result; |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 5493 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5494 | |
| 5495 | |
| 5496 | // Helper function to handle calls to non-function objects created through the |
| 5497 | // API. The object can be called as either a constructor (using new) or just as |
| 5498 | // a function (without new). |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5499 | MUST_USE_RESULT static Object* HandleApiCallAsFunctionOrConstructor( |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5500 | Isolate* isolate, bool is_construct_call, BuiltinArguments args) { |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 5501 | Handle<Object> receiver = args.receiver(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5502 | |
| 5503 | // Get the object called. |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 5504 | JSObject* obj = JSObject::cast(*receiver); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5505 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5506 | // Set the new target. |
| 5507 | HeapObject* new_target; |
| 5508 | if (is_construct_call) { |
| 5509 | // TODO(adamk): This should be passed through in args instead of |
| 5510 | // being patched in here. We need to set a non-undefined value |
| 5511 | // for v8::FunctionCallbackInfo::IsConstructCall() to get the |
| 5512 | // right answer. |
| 5513 | new_target = obj; |
| 5514 | } else { |
| 5515 | new_target = isolate->heap()->undefined_value(); |
| 5516 | } |
| 5517 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5518 | // Get the invocation callback from the function descriptor that was |
| 5519 | // used to create the called object. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5520 | DCHECK(obj->map()->is_callable()); |
| 5521 | JSFunction* constructor = JSFunction::cast(obj->map()->GetConstructor()); |
| 5522 | // TODO(ishell): turn this back to a DCHECK. |
| 5523 | CHECK(constructor->shared()->IsApiFunction()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5524 | Object* handler = |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 5525 | constructor->shared()->get_api_func_data()->instance_call_handler(); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5526 | DCHECK(!handler->IsUndefined(isolate)); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5527 | // TODO(ishell): remove this debugging code. |
| 5528 | CHECK(handler->IsCallHandlerInfo()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5529 | CallHandlerInfo* call_data = CallHandlerInfo::cast(handler); |
| 5530 | Object* callback_obj = call_data->callback(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5531 | v8::FunctionCallback callback = |
| 5532 | v8::ToCData<v8::FunctionCallback>(callback_obj); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5533 | |
| 5534 | // Get the data for the call and perform the callback. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5535 | Object* result; |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 5536 | { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5537 | HandleScope scope(isolate); |
| 5538 | LOG(isolate, ApiObjectAccess("call non-function", obj)); |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 5539 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5540 | FunctionCallbackArguments custom(isolate, call_data->data(), constructor, |
| 5541 | obj, new_target, &args[0] - 1, |
| 5542 | args.length() - 1); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5543 | Handle<Object> result_handle = custom.Call(callback); |
| 5544 | if (result_handle.is_null()) { |
| 5545 | result = isolate->heap()->undefined_value(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5546 | } else { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5547 | result = *result_handle; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5548 | } |
| 5549 | } |
| 5550 | // Check for exceptions and return result. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5551 | RETURN_FAILURE_IF_SCHEDULED_EXCEPTION(isolate); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5552 | return result; |
| 5553 | } |
| 5554 | |
| 5555 | |
| 5556 | // Handle calls to non-function objects created through the API. This delegate |
| 5557 | // function is used when the call is a normal function call. |
| 5558 | BUILTIN(HandleApiCallAsFunction) { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5559 | return HandleApiCallAsFunctionOrConstructor(isolate, false, args); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5560 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5561 | |
| 5562 | |
| 5563 | // Handle calls to non-function objects created through the API. This delegate |
| 5564 | // function is used when the call is a construct call. |
| 5565 | BUILTIN(HandleApiCallAsConstructor) { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5566 | return HandleApiCallAsFunctionOrConstructor(isolate, true, args); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5567 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5568 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5569 | namespace { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5570 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5571 | void Generate_LoadIC_Miss(CodeStubAssembler* assembler) { |
| 5572 | typedef compiler::Node Node; |
| 5573 | |
| 5574 | Node* receiver = assembler->Parameter(0); |
| 5575 | Node* name = assembler->Parameter(1); |
| 5576 | Node* slot = assembler->Parameter(2); |
| 5577 | Node* vector = assembler->Parameter(3); |
| 5578 | Node* context = assembler->Parameter(4); |
| 5579 | |
| 5580 | assembler->TailCallRuntime(Runtime::kLoadIC_Miss, context, receiver, name, |
| 5581 | slot, vector); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5582 | } |
| 5583 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5584 | void Generate_LoadGlobalIC_Miss(CodeStubAssembler* assembler) { |
| 5585 | typedef compiler::Node Node; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5586 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5587 | Node* slot = assembler->Parameter(0); |
| 5588 | Node* vector = assembler->Parameter(1); |
| 5589 | Node* context = assembler->Parameter(2); |
| 5590 | |
| 5591 | assembler->TailCallRuntime(Runtime::kLoadGlobalIC_Miss, context, slot, |
| 5592 | vector); |
| 5593 | } |
| 5594 | |
| 5595 | void Generate_LoadIC_Normal(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5596 | LoadIC::GenerateNormal(masm); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5597 | } |
| 5598 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5599 | void Generate_LoadIC_Getter_ForDeopt(MacroAssembler* masm) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5600 | NamedLoadHandlerCompiler::GenerateLoadViaGetterForDeopt(masm); |
| 5601 | } |
| 5602 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5603 | void Generate_LoadIC_Slow(CodeStubAssembler* assembler) { |
| 5604 | typedef compiler::Node Node; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5605 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5606 | Node* receiver = assembler->Parameter(0); |
| 5607 | Node* name = assembler->Parameter(1); |
| 5608 | // Node* slot = assembler->Parameter(2); |
| 5609 | // Node* vector = assembler->Parameter(3); |
| 5610 | Node* context = assembler->Parameter(4); |
| 5611 | |
| 5612 | assembler->TailCallRuntime(Runtime::kGetProperty, context, receiver, name); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5613 | } |
| 5614 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5615 | void Generate_LoadGlobalIC_Slow(CodeStubAssembler* assembler) { |
| 5616 | typedef compiler::Node Node; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5617 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5618 | Node* slot = assembler->Parameter(0); |
| 5619 | Node* vector = assembler->Parameter(1); |
| 5620 | Node* context = assembler->Parameter(2); |
| 5621 | |
| 5622 | assembler->TailCallRuntime(Runtime::kLoadGlobalIC_Slow, context, slot, |
| 5623 | vector); |
| 5624 | } |
| 5625 | |
| 5626 | void Generate_KeyedLoadIC_Slow(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5627 | KeyedLoadIC::GenerateRuntimeGetProperty(masm); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5628 | } |
| 5629 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5630 | void Generate_KeyedLoadIC_Miss(MacroAssembler* masm) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5631 | KeyedLoadIC::GenerateMiss(masm); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5632 | } |
| 5633 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5634 | void Generate_KeyedLoadIC_Megamorphic(MacroAssembler* masm) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 5635 | KeyedLoadIC::GenerateMegamorphic(masm); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5636 | } |
| 5637 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5638 | void Generate_StoreIC_Miss(MacroAssembler* masm) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5639 | StoreIC::GenerateMiss(masm); |
| 5640 | } |
| 5641 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5642 | void Generate_StoreIC_Normal(MacroAssembler* masm) { |
Steve Block | 8defd9f | 2010-07-08 12:39:36 +0100 | [diff] [blame] | 5643 | StoreIC::GenerateNormal(masm); |
| 5644 | } |
| 5645 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5646 | void Generate_StoreIC_Slow(MacroAssembler* masm) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5647 | NamedStoreHandlerCompiler::GenerateSlow(masm); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5648 | } |
| 5649 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5650 | void Generate_KeyedStoreIC_Slow(MacroAssembler* masm) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5651 | ElementHandlerCompiler::GenerateStoreSlow(masm); |
| 5652 | } |
| 5653 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5654 | void Generate_StoreIC_Setter_ForDeopt(MacroAssembler* masm) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5655 | NamedStoreHandlerCompiler::GenerateStoreViaSetterForDeopt(masm); |
| 5656 | } |
| 5657 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5658 | void Generate_KeyedStoreIC_Megamorphic(MacroAssembler* masm) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5659 | KeyedStoreIC::GenerateMegamorphic(masm, SLOPPY); |
| 5660 | } |
| 5661 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5662 | void Generate_KeyedStoreIC_Megamorphic_Strict(MacroAssembler* masm) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5663 | KeyedStoreIC::GenerateMegamorphic(masm, STRICT); |
| 5664 | } |
| 5665 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5666 | void Generate_KeyedStoreIC_Miss(MacroAssembler* masm) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5667 | KeyedStoreIC::GenerateMiss(masm); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5668 | } |
| 5669 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5670 | void Generate_Return_DebugBreak(MacroAssembler* masm) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5671 | DebugCodegen::GenerateDebugBreakStub(masm, |
| 5672 | DebugCodegen::SAVE_RESULT_REGISTER); |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame] | 5673 | } |
| 5674 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5675 | void Generate_Slot_DebugBreak(MacroAssembler* masm) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5676 | DebugCodegen::GenerateDebugBreakStub(masm, |
| 5677 | DebugCodegen::IGNORE_RESULT_REGISTER); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 5678 | } |
| 5679 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5680 | void Generate_FrameDropper_LiveEdit(MacroAssembler* masm) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5681 | DebugCodegen::GenerateFrameDropperLiveEdit(masm); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 5682 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5683 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5684 | } // namespace |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5685 | |
| 5686 | Builtins::Builtins() : initialized_(false) { |
| 5687 | memset(builtins_, 0, sizeof(builtins_[0]) * builtin_count); |
| 5688 | memset(names_, 0, sizeof(names_[0]) * builtin_count); |
| 5689 | } |
| 5690 | |
| 5691 | |
| 5692 | Builtins::~Builtins() { |
| 5693 | } |
| 5694 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5695 | #define DEF_ENUM_C(name) FUNCTION_ADDR(Builtin_##name), |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5696 | Address const Builtins::c_functions_[cfunction_count] = { |
| 5697 | BUILTIN_LIST_C(DEF_ENUM_C) |
| 5698 | }; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5699 | #undef DEF_ENUM_C |
| 5700 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5701 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5702 | struct BuiltinDesc { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5703 | Handle<Code> (*builder)(Isolate*, struct BuiltinDesc const*); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5704 | byte* generator; |
| 5705 | byte* c_code; |
| 5706 | const char* s_name; // name is only used for generating log information. |
| 5707 | int name; |
| 5708 | Code::Flags flags; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5709 | int argc; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5710 | }; |
| 5711 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5712 | #define BUILTIN_FUNCTION_TABLE_INIT { V8_ONCE_INIT, {} } |
| 5713 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5714 | class BuiltinFunctionTable { |
| 5715 | public: |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5716 | BuiltinDesc* functions() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5717 | base::CallOnce(&once_, &Builtins::InitBuiltinFunctionTable); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5718 | return functions_; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5719 | } |
| 5720 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5721 | base::OnceType once_; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5722 | BuiltinDesc functions_[Builtins::builtin_count + 1]; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5723 | |
| 5724 | friend class Builtins; |
| 5725 | }; |
| 5726 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5727 | namespace { |
| 5728 | |
| 5729 | BuiltinFunctionTable builtin_function_table = BUILTIN_FUNCTION_TABLE_INIT; |
| 5730 | |
| 5731 | Handle<Code> MacroAssemblerBuilder(Isolate* isolate, |
| 5732 | BuiltinDesc const* builtin_desc) { |
| 5733 | // For now we generate builtin adaptor code into a stack-allocated |
| 5734 | // buffer, before copying it into individual code objects. Be careful |
| 5735 | // with alignment, some platforms don't like unaligned code. |
| 5736 | #ifdef DEBUG |
| 5737 | // We can generate a lot of debug code on Arm64. |
| 5738 | const size_t buffer_size = 32 * KB; |
| 5739 | #elif V8_TARGET_ARCH_PPC64 |
| 5740 | // 8 KB is insufficient on PPC64 when FLAG_debug_code is on. |
| 5741 | const size_t buffer_size = 10 * KB; |
| 5742 | #else |
| 5743 | const size_t buffer_size = 8 * KB; |
| 5744 | #endif |
| 5745 | union { |
| 5746 | int force_alignment; |
| 5747 | byte buffer[buffer_size]; // NOLINT(runtime/arrays) |
| 5748 | } u; |
| 5749 | |
| 5750 | MacroAssembler masm(isolate, u.buffer, sizeof(u.buffer), |
| 5751 | CodeObjectRequired::kYes); |
| 5752 | // Generate the code/adaptor. |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5753 | typedef void (*Generator)(MacroAssembler*, int); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5754 | Generator g = FUNCTION_CAST<Generator>(builtin_desc->generator); |
| 5755 | // We pass all arguments to the generator, but it may not use all of |
| 5756 | // them. This works because the first arguments are on top of the |
| 5757 | // stack. |
| 5758 | DCHECK(!masm.has_frame()); |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5759 | g(&masm, builtin_desc->name); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5760 | // Move the code into the object heap. |
| 5761 | CodeDesc desc; |
| 5762 | masm.GetCode(&desc); |
| 5763 | Code::Flags flags = builtin_desc->flags; |
| 5764 | return isolate->factory()->NewCode(desc, flags, masm.CodeObject()); |
| 5765 | } |
| 5766 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5767 | // Builder for builtins implemented in TurboFan with JS linkage. |
| 5768 | Handle<Code> CodeStubAssemblerBuilderJS(Isolate* isolate, |
| 5769 | BuiltinDesc const* builtin_desc) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5770 | Zone zone(isolate->allocator()); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5771 | CodeStubAssembler assembler(isolate, &zone, builtin_desc->argc, |
| 5772 | builtin_desc->flags, builtin_desc->s_name); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5773 | // Generate the code/adaptor. |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5774 | typedef void (*Generator)(CodeStubAssembler*); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5775 | Generator g = FUNCTION_CAST<Generator>(builtin_desc->generator); |
| 5776 | g(&assembler); |
| 5777 | return assembler.GenerateCode(); |
| 5778 | } |
| 5779 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5780 | // Builder for builtins implemented in TurboFan with CallStub linkage. |
| 5781 | Handle<Code> CodeStubAssemblerBuilderCS(Isolate* isolate, |
| 5782 | BuiltinDesc const* builtin_desc) { |
| 5783 | Zone zone(isolate->allocator()); |
| 5784 | // The interface descriptor with given key must be initialized at this point |
| 5785 | // and this construction just queries the details from the descriptors table. |
| 5786 | CallInterfaceDescriptor descriptor( |
| 5787 | isolate, static_cast<CallDescriptors::Key>(builtin_desc->argc)); |
| 5788 | // Ensure descriptor is already initialized. |
| 5789 | DCHECK_NOT_NULL(descriptor.GetFunctionType()); |
| 5790 | CodeStubAssembler assembler(isolate, &zone, descriptor, builtin_desc->flags, |
| 5791 | builtin_desc->s_name); |
| 5792 | // Generate the code/adaptor. |
| 5793 | typedef void (*Generator)(CodeStubAssembler*); |
| 5794 | Generator g = FUNCTION_CAST<Generator>(builtin_desc->generator); |
| 5795 | g(&assembler); |
| 5796 | return assembler.GenerateCode(); |
| 5797 | } |
| 5798 | |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5799 | } // namespace |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5800 | |
| 5801 | // Define array of pointers to generators and C builtin functions. |
| 5802 | // We do this in a sort of roundabout way so that we can do the initialization |
| 5803 | // within the lexical scope of Builtins:: and within a context where |
| 5804 | // Code::Flags names a non-abstract type. |
| 5805 | void Builtins::InitBuiltinFunctionTable() { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5806 | BuiltinDesc* functions = builtin_function_table.functions_; |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5807 | functions[builtin_count].builder = nullptr; |
| 5808 | functions[builtin_count].generator = nullptr; |
| 5809 | functions[builtin_count].c_code = nullptr; |
| 5810 | functions[builtin_count].s_name = nullptr; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5811 | functions[builtin_count].name = builtin_count; |
| 5812 | functions[builtin_count].flags = static_cast<Code::Flags>(0); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5813 | functions[builtin_count].argc = 0; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5814 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5815 | #define DEF_FUNCTION_PTR_C(aname) \ |
| 5816 | functions->builder = &MacroAssemblerBuilder; \ |
| 5817 | functions->generator = FUNCTION_ADDR(Generate_Adaptor); \ |
| 5818 | functions->c_code = FUNCTION_ADDR(Builtin_##aname); \ |
| 5819 | functions->s_name = #aname; \ |
| 5820 | functions->name = c_##aname; \ |
| 5821 | functions->flags = Code::ComputeFlags(Code::BUILTIN); \ |
| 5822 | functions->argc = 0; \ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5823 | ++functions; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5824 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5825 | #define DEF_FUNCTION_PTR_A(aname, kind, extra) \ |
| 5826 | functions->builder = &MacroAssemblerBuilder; \ |
| 5827 | functions->generator = FUNCTION_ADDR(Generate_##aname); \ |
| 5828 | functions->c_code = NULL; \ |
| 5829 | functions->s_name = #aname; \ |
| 5830 | functions->name = k##aname; \ |
| 5831 | functions->flags = Code::ComputeFlags(Code::kind, extra); \ |
| 5832 | functions->argc = 0; \ |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5833 | ++functions; |
| 5834 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5835 | #define DEF_FUNCTION_PTR_T(aname, aargc) \ |
| 5836 | functions->builder = &CodeStubAssemblerBuilderJS; \ |
| 5837 | functions->generator = FUNCTION_ADDR(Generate_##aname); \ |
| 5838 | functions->c_code = NULL; \ |
| 5839 | functions->s_name = #aname; \ |
| 5840 | functions->name = k##aname; \ |
| 5841 | functions->flags = Code::ComputeFlags(Code::BUILTIN); \ |
| 5842 | functions->argc = aargc; \ |
| 5843 | ++functions; |
| 5844 | |
| 5845 | #define DEF_FUNCTION_PTR_S(aname, kind, extra, interface_descriptor) \ |
| 5846 | functions->builder = &CodeStubAssemblerBuilderCS; \ |
| 5847 | functions->generator = FUNCTION_ADDR(Generate_##aname); \ |
| 5848 | functions->c_code = NULL; \ |
| 5849 | functions->s_name = #aname; \ |
| 5850 | functions->name = k##aname; \ |
| 5851 | functions->flags = Code::ComputeFlags(Code::kind, extra); \ |
| 5852 | functions->argc = CallDescriptors::interface_descriptor; \ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5853 | ++functions; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5854 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5855 | #define DEF_FUNCTION_PTR_H(aname, kind) \ |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5856 | functions->builder = &MacroAssemblerBuilder; \ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5857 | functions->generator = FUNCTION_ADDR(Generate_##aname); \ |
| 5858 | functions->c_code = NULL; \ |
| 5859 | functions->s_name = #aname; \ |
| 5860 | functions->name = k##aname; \ |
| 5861 | functions->flags = Code::ComputeHandlerFlags(Code::kind); \ |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5862 | functions->argc = 0; \ |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5863 | ++functions; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5864 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5865 | BUILTIN_LIST_C(DEF_FUNCTION_PTR_C) |
| 5866 | BUILTIN_LIST_A(DEF_FUNCTION_PTR_A) |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5867 | BUILTIN_LIST_T(DEF_FUNCTION_PTR_T) |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5868 | BUILTIN_LIST_S(DEF_FUNCTION_PTR_S) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5869 | BUILTIN_LIST_H(DEF_FUNCTION_PTR_H) |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5870 | BUILTIN_LIST_DEBUG_A(DEF_FUNCTION_PTR_A) |
| 5871 | |
| 5872 | #undef DEF_FUNCTION_PTR_C |
| 5873 | #undef DEF_FUNCTION_PTR_A |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5874 | #undef DEF_FUNCTION_PTR_T |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5875 | #undef DEF_FUNCTION_PTR_S |
| 5876 | #undef DEF_FUNCTION_PTR_H |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5877 | } |
| 5878 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5879 | |
| 5880 | void Builtins::SetUp(Isolate* isolate, bool create_heap_objects) { |
| 5881 | DCHECK(!initialized_); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5882 | |
| 5883 | // Create a scope for the handles in the builtins. |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 5884 | HandleScope scope(isolate); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5885 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5886 | #define INITIALIZE_CALL_DESCRIPTOR(name, kind, extra, interface_descriptor) \ |
| 5887 | { interface_descriptor##Descriptor descriptor(isolate); } |
| 5888 | BUILTIN_LIST_S(INITIALIZE_CALL_DESCRIPTOR) |
| 5889 | #undef INITIALIZE_CALL_DESCRIPTOR |
| 5890 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5891 | const BuiltinDesc* functions = builtin_function_table.functions(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5892 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5893 | // Traverse the list of builtins and generate an adaptor in a |
| 5894 | // separate code object for each one. |
| 5895 | for (int i = 0; i < builtin_count; i++) { |
| 5896 | if (create_heap_objects) { |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 5897 | Handle<Code> code = (*functions[i].builder)(isolate, functions + i); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5898 | // Log the event and add the code to the builtins array. |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 5899 | PROFILE(isolate, |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 5900 | CodeCreateEvent(CodeEventListener::BUILTIN_TAG, |
| 5901 | AbstractCode::cast(*code), functions[i].s_name)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5902 | builtins_[i] = *code; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5903 | code->set_builtin_index(i); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5904 | #ifdef ENABLE_DISASSEMBLER |
| 5905 | if (FLAG_print_builtin_code) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5906 | CodeTracer::Scope trace_scope(isolate->GetCodeTracer()); |
| 5907 | OFStream os(trace_scope.file()); |
| 5908 | os << "Builtin: " << functions[i].s_name << "\n"; |
| 5909 | code->Disassemble(functions[i].s_name, os); |
| 5910 | os << "\n"; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5911 | } |
| 5912 | #endif |
| 5913 | } else { |
| 5914 | // Deserializing. The values will be filled in during IterateBuiltins. |
| 5915 | builtins_[i] = NULL; |
| 5916 | } |
| 5917 | names_[i] = functions[i].s_name; |
| 5918 | } |
| 5919 | |
| 5920 | // Mark as initialized. |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5921 | initialized_ = true; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5922 | } |
| 5923 | |
| 5924 | |
| 5925 | void Builtins::TearDown() { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5926 | initialized_ = false; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5927 | } |
| 5928 | |
| 5929 | |
| 5930 | void Builtins::IterateBuiltins(ObjectVisitor* v) { |
| 5931 | v->VisitPointers(&builtins_[0], &builtins_[0] + builtin_count); |
| 5932 | } |
| 5933 | |
| 5934 | |
| 5935 | const char* Builtins::Lookup(byte* pc) { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5936 | // may be called during initialization (disassembler!) |
| 5937 | if (initialized_) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 5938 | for (int i = 0; i < builtin_count; i++) { |
| 5939 | Code* entry = Code::cast(builtins_[i]); |
| 5940 | if (entry->contains(pc)) { |
| 5941 | return names_[i]; |
| 5942 | } |
| 5943 | } |
| 5944 | } |
| 5945 | return NULL; |
| 5946 | } |
| 5947 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 5948 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5949 | void Builtins::Generate_InterruptCheck(MacroAssembler* masm) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5950 | masm->TailCallRuntime(Runtime::kInterrupt); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5951 | } |
| 5952 | |
| 5953 | |
| 5954 | void Builtins::Generate_StackCheck(MacroAssembler* masm) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5955 | masm->TailCallRuntime(Runtime::kStackGuard); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5956 | } |
| 5957 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame] | 5958 | namespace { |
| 5959 | |
| 5960 | void ValidateSharedTypedArray(CodeStubAssembler* a, compiler::Node* tagged, |
| 5961 | compiler::Node* context, |
| 5962 | compiler::Node** out_instance_type, |
| 5963 | compiler::Node** out_backing_store) { |
| 5964 | using namespace compiler; |
| 5965 | CodeStubAssembler::Label is_smi(a), not_smi(a), is_typed_array(a), |
| 5966 | not_typed_array(a), is_shared(a), not_shared(a), is_float_or_clamped(a), |
| 5967 | not_float_or_clamped(a), invalid(a); |
| 5968 | |
| 5969 | // Fail if it is not a heap object. |
| 5970 | a->Branch(a->WordIsSmi(tagged), &is_smi, ¬_smi); |
| 5971 | a->Bind(&is_smi); |
| 5972 | a->Goto(&invalid); |
| 5973 | |
| 5974 | // Fail if the array's instance type is not JSTypedArray. |
| 5975 | a->Bind(¬_smi); |
| 5976 | a->Branch(a->WordEqual(a->LoadInstanceType(tagged), |
| 5977 | a->Int32Constant(JS_TYPED_ARRAY_TYPE)), |
| 5978 | &is_typed_array, ¬_typed_array); |
| 5979 | a->Bind(¬_typed_array); |
| 5980 | a->Goto(&invalid); |
| 5981 | |
| 5982 | // Fail if the array's JSArrayBuffer is not shared. |
| 5983 | a->Bind(&is_typed_array); |
| 5984 | Node* array_buffer = a->LoadObjectField(tagged, JSTypedArray::kBufferOffset); |
| 5985 | Node* is_buffer_shared = a->BitFieldDecode<JSArrayBuffer::IsShared>( |
| 5986 | a->LoadObjectField(array_buffer, JSArrayBuffer::kBitFieldSlot)); |
| 5987 | a->Branch(is_buffer_shared, &is_shared, ¬_shared); |
| 5988 | a->Bind(¬_shared); |
| 5989 | a->Goto(&invalid); |
| 5990 | |
| 5991 | // Fail if the array's element type is float32, float64 or clamped. |
| 5992 | a->Bind(&is_shared); |
| 5993 | Node* elements_instance_type = a->LoadInstanceType( |
| 5994 | a->LoadObjectField(tagged, JSObject::kElementsOffset)); |
| 5995 | STATIC_ASSERT(FIXED_INT8_ARRAY_TYPE < FIXED_FLOAT32_ARRAY_TYPE); |
| 5996 | STATIC_ASSERT(FIXED_INT16_ARRAY_TYPE < FIXED_FLOAT32_ARRAY_TYPE); |
| 5997 | STATIC_ASSERT(FIXED_INT32_ARRAY_TYPE < FIXED_FLOAT32_ARRAY_TYPE); |
| 5998 | STATIC_ASSERT(FIXED_UINT8_ARRAY_TYPE < FIXED_FLOAT32_ARRAY_TYPE); |
| 5999 | STATIC_ASSERT(FIXED_UINT16_ARRAY_TYPE < FIXED_FLOAT32_ARRAY_TYPE); |
| 6000 | STATIC_ASSERT(FIXED_UINT32_ARRAY_TYPE < FIXED_FLOAT32_ARRAY_TYPE); |
| 6001 | a->Branch(a->Int32LessThan(elements_instance_type, |
| 6002 | a->Int32Constant(FIXED_FLOAT32_ARRAY_TYPE)), |
| 6003 | ¬_float_or_clamped, &is_float_or_clamped); |
| 6004 | a->Bind(&is_float_or_clamped); |
| 6005 | a->Goto(&invalid); |
| 6006 | |
| 6007 | a->Bind(&invalid); |
| 6008 | a->CallRuntime(Runtime::kThrowNotIntegerSharedTypedArrayError, context, |
| 6009 | tagged); |
| 6010 | a->Return(a->UndefinedConstant()); |
| 6011 | |
| 6012 | a->Bind(¬_float_or_clamped); |
| 6013 | *out_instance_type = elements_instance_type; |
| 6014 | |
| 6015 | Node* backing_store = |
| 6016 | a->LoadObjectField(array_buffer, JSArrayBuffer::kBackingStoreOffset); |
| 6017 | Node* byte_offset = a->ChangeUint32ToWord(a->TruncateTaggedToWord32( |
| 6018 | context, |
| 6019 | a->LoadObjectField(tagged, JSArrayBufferView::kByteOffsetOffset))); |
| 6020 | *out_backing_store = a->IntPtrAdd(backing_store, byte_offset); |
| 6021 | } |
| 6022 | |
| 6023 | // https://tc39.github.io/ecmascript_sharedmem/shmem.html#Atomics.ValidateAtomicAccess |
| 6024 | compiler::Node* ConvertTaggedAtomicIndexToWord32(CodeStubAssembler* a, |
| 6025 | compiler::Node* tagged, |
| 6026 | compiler::Node* context) { |
| 6027 | using namespace compiler; |
| 6028 | CodeStubAssembler::Variable var_result(a, MachineRepresentation::kWord32); |
| 6029 | |
| 6030 | Callable to_number = CodeFactory::ToNumber(a->isolate()); |
| 6031 | Node* number_index = a->CallStub(to_number, context, tagged); |
| 6032 | CodeStubAssembler::Label done(a, &var_result); |
| 6033 | |
| 6034 | CodeStubAssembler::Label if_numberissmi(a), if_numberisnotsmi(a); |
| 6035 | a->Branch(a->WordIsSmi(number_index), &if_numberissmi, &if_numberisnotsmi); |
| 6036 | |
| 6037 | a->Bind(&if_numberissmi); |
| 6038 | { |
| 6039 | var_result.Bind(a->SmiToWord32(number_index)); |
| 6040 | a->Goto(&done); |
| 6041 | } |
| 6042 | |
| 6043 | a->Bind(&if_numberisnotsmi); |
| 6044 | { |
| 6045 | Node* number_index_value = a->LoadHeapNumberValue(number_index); |
| 6046 | Node* access_index = a->TruncateFloat64ToWord32(number_index_value); |
| 6047 | Node* test_index = a->ChangeInt32ToFloat64(access_index); |
| 6048 | |
| 6049 | CodeStubAssembler::Label if_indexesareequal(a), if_indexesarenotequal(a); |
| 6050 | a->Branch(a->Float64Equal(number_index_value, test_index), |
| 6051 | &if_indexesareequal, &if_indexesarenotequal); |
| 6052 | |
| 6053 | a->Bind(&if_indexesareequal); |
| 6054 | { |
| 6055 | var_result.Bind(access_index); |
| 6056 | a->Goto(&done); |
| 6057 | } |
| 6058 | |
| 6059 | a->Bind(&if_indexesarenotequal); |
| 6060 | a->Return( |
| 6061 | a->CallRuntime(Runtime::kThrowInvalidAtomicAccessIndexError, context)); |
| 6062 | } |
| 6063 | |
| 6064 | a->Bind(&done); |
| 6065 | return var_result.value(); |
| 6066 | } |
| 6067 | |
| 6068 | void ValidateAtomicIndex(CodeStubAssembler* a, compiler::Node* index_word, |
| 6069 | compiler::Node* array_length_word, |
| 6070 | compiler::Node* context) { |
| 6071 | using namespace compiler; |
| 6072 | // Check if the index is in bounds. If not, throw RangeError. |
| 6073 | CodeStubAssembler::Label if_inbounds(a), if_notinbounds(a); |
| 6074 | a->Branch( |
| 6075 | a->WordOr(a->Int32LessThan(index_word, a->Int32Constant(0)), |
| 6076 | a->Int32GreaterThanOrEqual(index_word, array_length_word)), |
| 6077 | &if_notinbounds, &if_inbounds); |
| 6078 | a->Bind(&if_notinbounds); |
| 6079 | a->Return( |
| 6080 | a->CallRuntime(Runtime::kThrowInvalidAtomicAccessIndexError, context)); |
| 6081 | a->Bind(&if_inbounds); |
| 6082 | } |
| 6083 | |
| 6084 | } // anonymous namespace |
| 6085 | |
| 6086 | void Builtins::Generate_AtomicsLoad(CodeStubAssembler* a) { |
| 6087 | using namespace compiler; |
| 6088 | Node* array = a->Parameter(1); |
| 6089 | Node* index = a->Parameter(2); |
| 6090 | Node* context = a->Parameter(3 + 2); |
| 6091 | |
| 6092 | Node* instance_type; |
| 6093 | Node* backing_store; |
| 6094 | ValidateSharedTypedArray(a, array, context, &instance_type, &backing_store); |
| 6095 | |
| 6096 | Node* index_word32 = ConvertTaggedAtomicIndexToWord32(a, index, context); |
| 6097 | Node* array_length_word32 = a->TruncateTaggedToWord32( |
| 6098 | context, a->LoadObjectField(array, JSTypedArray::kLengthOffset)); |
| 6099 | ValidateAtomicIndex(a, index_word32, array_length_word32, context); |
| 6100 | Node* index_word = a->ChangeUint32ToWord(index_word32); |
| 6101 | |
| 6102 | CodeStubAssembler::Label i8(a), u8(a), i16(a), u16(a), i32(a), u32(a), |
| 6103 | other(a); |
| 6104 | int32_t case_values[] = { |
| 6105 | FIXED_INT8_ARRAY_TYPE, FIXED_UINT8_ARRAY_TYPE, FIXED_INT16_ARRAY_TYPE, |
| 6106 | FIXED_UINT16_ARRAY_TYPE, FIXED_INT32_ARRAY_TYPE, FIXED_UINT32_ARRAY_TYPE, |
| 6107 | }; |
| 6108 | CodeStubAssembler::Label* case_labels[] = { |
| 6109 | &i8, &u8, &i16, &u16, &i32, &u32, |
| 6110 | }; |
| 6111 | a->Switch(instance_type, &other, case_values, case_labels, |
| 6112 | arraysize(case_labels)); |
| 6113 | |
| 6114 | a->Bind(&i8); |
| 6115 | a->Return( |
| 6116 | a->SmiTag(a->AtomicLoad(MachineType::Int8(), backing_store, index_word))); |
| 6117 | |
| 6118 | a->Bind(&u8); |
| 6119 | a->Return(a->SmiTag( |
| 6120 | a->AtomicLoad(MachineType::Uint8(), backing_store, index_word))); |
| 6121 | |
| 6122 | a->Bind(&i16); |
| 6123 | a->Return(a->SmiTag(a->AtomicLoad(MachineType::Int16(), backing_store, |
| 6124 | a->WordShl(index_word, 1)))); |
| 6125 | |
| 6126 | a->Bind(&u16); |
| 6127 | a->Return(a->SmiTag(a->AtomicLoad(MachineType::Uint16(), backing_store, |
| 6128 | a->WordShl(index_word, 1)))); |
| 6129 | |
| 6130 | a->Bind(&i32); |
| 6131 | a->Return(a->ChangeInt32ToTagged(a->AtomicLoad( |
| 6132 | MachineType::Int32(), backing_store, a->WordShl(index_word, 2)))); |
| 6133 | |
| 6134 | a->Bind(&u32); |
| 6135 | a->Return(a->ChangeUint32ToTagged(a->AtomicLoad( |
| 6136 | MachineType::Uint32(), backing_store, a->WordShl(index_word, 2)))); |
| 6137 | |
| 6138 | // This shouldn't happen, we've already validated the type. |
| 6139 | a->Bind(&other); |
| 6140 | a->Return(a->Int32Constant(0)); |
| 6141 | } |
| 6142 | |
| 6143 | void Builtins::Generate_AtomicsStore(CodeStubAssembler* a) { |
| 6144 | using namespace compiler; |
| 6145 | Node* array = a->Parameter(1); |
| 6146 | Node* index = a->Parameter(2); |
| 6147 | Node* value = a->Parameter(3); |
| 6148 | Node* context = a->Parameter(4 + 2); |
| 6149 | |
| 6150 | Node* instance_type; |
| 6151 | Node* backing_store; |
| 6152 | ValidateSharedTypedArray(a, array, context, &instance_type, &backing_store); |
| 6153 | |
| 6154 | Node* index_word32 = ConvertTaggedAtomicIndexToWord32(a, index, context); |
| 6155 | Node* array_length_word32 = a->TruncateTaggedToWord32( |
| 6156 | context, a->LoadObjectField(array, JSTypedArray::kLengthOffset)); |
| 6157 | ValidateAtomicIndex(a, index_word32, array_length_word32, context); |
| 6158 | Node* index_word = a->ChangeUint32ToWord(index_word32); |
| 6159 | |
| 6160 | Callable to_integer = CodeFactory::ToInteger(a->isolate()); |
| 6161 | Node* value_integer = a->CallStub(to_integer, context, value); |
| 6162 | Node* value_word32 = a->TruncateTaggedToWord32(context, value_integer); |
| 6163 | |
| 6164 | CodeStubAssembler::Label u8(a), u16(a), u32(a), other(a); |
| 6165 | int32_t case_values[] = { |
| 6166 | FIXED_INT8_ARRAY_TYPE, FIXED_UINT8_ARRAY_TYPE, FIXED_INT16_ARRAY_TYPE, |
| 6167 | FIXED_UINT16_ARRAY_TYPE, FIXED_INT32_ARRAY_TYPE, FIXED_UINT32_ARRAY_TYPE, |
| 6168 | }; |
| 6169 | CodeStubAssembler::Label* case_labels[] = { |
| 6170 | &u8, &u8, &u16, &u16, &u32, &u32, |
| 6171 | }; |
| 6172 | a->Switch(instance_type, &other, case_values, case_labels, |
| 6173 | arraysize(case_labels)); |
| 6174 | |
| 6175 | a->Bind(&u8); |
| 6176 | a->AtomicStore(MachineRepresentation::kWord8, backing_store, index_word, |
| 6177 | value_word32); |
| 6178 | a->Return(value_integer); |
| 6179 | |
| 6180 | a->Bind(&u16); |
| 6181 | a->SmiTag(a->AtomicStore(MachineRepresentation::kWord16, backing_store, |
| 6182 | a->WordShl(index_word, 1), value_word32)); |
| 6183 | a->Return(value_integer); |
| 6184 | |
| 6185 | a->Bind(&u32); |
| 6186 | a->AtomicStore(MachineRepresentation::kWord32, backing_store, |
| 6187 | a->WordShl(index_word, 2), value_word32); |
| 6188 | a->Return(value_integer); |
| 6189 | |
| 6190 | // This shouldn't happen, we've already validated the type. |
| 6191 | a->Bind(&other); |
| 6192 | a->Return(a->Int32Constant(0)); |
| 6193 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6194 | |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 6195 | #define DEFINE_BUILTIN_ACCESSOR_C(name) \ |
| 6196 | Handle<Code> Builtins::name() { \ |
| 6197 | Code** code_address = reinterpret_cast<Code**>(builtin_address(k##name)); \ |
| 6198 | return Handle<Code>(code_address); \ |
| 6199 | } |
| 6200 | #define DEFINE_BUILTIN_ACCESSOR_A(name, kind, extra) \ |
| 6201 | Handle<Code> Builtins::name() { \ |
| 6202 | Code** code_address = reinterpret_cast<Code**>(builtin_address(k##name)); \ |
| 6203 | return Handle<Code>(code_address); \ |
| 6204 | } |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 6205 | #define DEFINE_BUILTIN_ACCESSOR_T(name, argc) \ |
| 6206 | Handle<Code> Builtins::name() { \ |
| 6207 | Code** code_address = reinterpret_cast<Code**>(builtin_address(k##name)); \ |
| 6208 | return Handle<Code>(code_address); \ |
| 6209 | } |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 6210 | #define DEFINE_BUILTIN_ACCESSOR_S(name, kind, extra, interface_descriptor) \ |
| 6211 | Handle<Code> Builtins::name() { \ |
| 6212 | Code** code_address = reinterpret_cast<Code**>(builtin_address(k##name)); \ |
| 6213 | return Handle<Code>(code_address); \ |
| 6214 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6215 | #define DEFINE_BUILTIN_ACCESSOR_H(name, kind) \ |
| 6216 | Handle<Code> Builtins::name() { \ |
| 6217 | Code** code_address = \ |
| 6218 | reinterpret_cast<Code**>(builtin_address(k##name)); \ |
| 6219 | return Handle<Code>(code_address); \ |
| 6220 | } |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 6221 | BUILTIN_LIST_C(DEFINE_BUILTIN_ACCESSOR_C) |
| 6222 | BUILTIN_LIST_A(DEFINE_BUILTIN_ACCESSOR_A) |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 6223 | BUILTIN_LIST_T(DEFINE_BUILTIN_ACCESSOR_T) |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 6224 | BUILTIN_LIST_S(DEFINE_BUILTIN_ACCESSOR_S) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 6225 | BUILTIN_LIST_H(DEFINE_BUILTIN_ACCESSOR_H) |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 6226 | BUILTIN_LIST_DEBUG_A(DEFINE_BUILTIN_ACCESSOR_A) |
| 6227 | #undef DEFINE_BUILTIN_ACCESSOR_C |
| 6228 | #undef DEFINE_BUILTIN_ACCESSOR_A |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 6229 | #undef DEFINE_BUILTIN_ACCESSOR_T |
Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 6230 | #undef DEFINE_BUILTIN_ACCESSOR_S |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 6231 | #undef DEFINE_BUILTIN_ACCESSOR_H |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 6232 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6233 | } // namespace internal |
| 6234 | } // namespace v8 |