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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 // | 4 // |
5 // Review notes: | 5 // Review notes: |
6 // | 6 // |
7 // - The use of macros in these inline functions may seem superfluous | 7 // - The use of macros in these inline functions may seem superfluous |
8 // but it is absolutely needed to make sure gcc generates optimal | 8 // but it is absolutely needed to make sure gcc generates optimal |
9 // code. gcc is not happy when attempting to inline too deep. | 9 // code. gcc is not happy when attempting to inline too deep. |
10 // | 10 // |
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779 | 779 |
780 template <> inline bool Is<JSFunction>(Object* obj) { | 780 template <> inline bool Is<JSFunction>(Object* obj) { |
781 return obj->IsJSFunction(); | 781 return obj->IsJSFunction(); |
782 } | 782 } |
783 | 783 |
784 | 784 |
785 TYPE_CHECKER(Code, CODE_TYPE) | 785 TYPE_CHECKER(Code, CODE_TYPE) |
786 TYPE_CHECKER(Oddball, ODDBALL_TYPE) | 786 TYPE_CHECKER(Oddball, ODDBALL_TYPE) |
787 TYPE_CHECKER(Cell, CELL_TYPE) | 787 TYPE_CHECKER(Cell, CELL_TYPE) |
788 TYPE_CHECKER(PropertyCell, PROPERTY_CELL_TYPE) | 788 TYPE_CHECKER(PropertyCell, PROPERTY_CELL_TYPE) |
| 789 TYPE_CHECKER(WeakCell, WEAK_CELL_TYPE) |
789 TYPE_CHECKER(SharedFunctionInfo, SHARED_FUNCTION_INFO_TYPE) | 790 TYPE_CHECKER(SharedFunctionInfo, SHARED_FUNCTION_INFO_TYPE) |
790 TYPE_CHECKER(JSGeneratorObject, JS_GENERATOR_OBJECT_TYPE) | 791 TYPE_CHECKER(JSGeneratorObject, JS_GENERATOR_OBJECT_TYPE) |
791 TYPE_CHECKER(JSModule, JS_MODULE_TYPE) | 792 TYPE_CHECKER(JSModule, JS_MODULE_TYPE) |
792 TYPE_CHECKER(JSValue, JS_VALUE_TYPE) | 793 TYPE_CHECKER(JSValue, JS_VALUE_TYPE) |
793 TYPE_CHECKER(JSDate, JS_DATE_TYPE) | 794 TYPE_CHECKER(JSDate, JS_DATE_TYPE) |
794 TYPE_CHECKER(JSMessageObject, JS_MESSAGE_OBJECT_TYPE) | 795 TYPE_CHECKER(JSMessageObject, JS_MESSAGE_OBJECT_TYPE) |
795 | 796 |
796 | 797 |
797 bool Object::IsStringWrapper() const { | 798 bool Object::IsStringWrapper() const { |
798 return IsJSValue() && JSValue::cast(this)->value()->IsString(); | 799 return IsJSValue() && JSValue::cast(this)->value()->IsString(); |
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1922 Object* PropertyCell::type_raw() const { | 1923 Object* PropertyCell::type_raw() const { |
1923 return READ_FIELD(this, kTypeOffset); | 1924 return READ_FIELD(this, kTypeOffset); |
1924 } | 1925 } |
1925 | 1926 |
1926 | 1927 |
1927 void PropertyCell::set_type_raw(Object* val, WriteBarrierMode ignored) { | 1928 void PropertyCell::set_type_raw(Object* val, WriteBarrierMode ignored) { |
1928 WRITE_FIELD(this, kTypeOffset, val); | 1929 WRITE_FIELD(this, kTypeOffset, val); |
1929 } | 1930 } |
1930 | 1931 |
1931 | 1932 |
| 1933 HeapObject* WeakCell::value() const { |
| 1934 return HeapObject::cast(READ_FIELD(this, kValueOffset)); |
| 1935 } |
| 1936 |
| 1937 |
| 1938 void WeakCell::clear(HeapObject* undefined) { |
| 1939 WRITE_FIELD(this, kValueOffset, undefined); |
| 1940 } |
| 1941 |
| 1942 |
| 1943 void WeakCell::initialize(HeapObject* val) { |
| 1944 WRITE_FIELD(this, kValueOffset, val); |
| 1945 WRITE_BARRIER(GetHeap(), this, kValueOffset, val); |
| 1946 } |
| 1947 |
| 1948 |
| 1949 Object* WeakCell::next() const { return READ_FIELD(this, kNextOffset); } |
| 1950 |
| 1951 |
| 1952 void WeakCell::set_next(Object* val, WriteBarrierMode mode) { |
| 1953 WRITE_FIELD(this, kNextOffset, val); |
| 1954 if (mode == UPDATE_WRITE_BARRIER) { |
| 1955 WRITE_BARRIER(GetHeap(), this, kNextOffset, val); |
| 1956 } |
| 1957 } |
| 1958 |
| 1959 |
1932 int JSObject::GetHeaderSize() { | 1960 int JSObject::GetHeaderSize() { |
1933 InstanceType type = map()->instance_type(); | 1961 InstanceType type = map()->instance_type(); |
1934 // Check for the most common kind of JavaScript object before | 1962 // Check for the most common kind of JavaScript object before |
1935 // falling into the generic switch. This speeds up the internal | 1963 // falling into the generic switch. This speeds up the internal |
1936 // field operations considerably on average. | 1964 // field operations considerably on average. |
1937 if (type == JS_OBJECT_TYPE) return JSObject::kHeaderSize; | 1965 if (type == JS_OBJECT_TYPE) return JSObject::kHeaderSize; |
1938 switch (type) { | 1966 switch (type) { |
1939 case JS_GENERATOR_OBJECT_TYPE: | 1967 case JS_GENERATOR_OBJECT_TYPE: |
1940 return JSGeneratorObject::kSize; | 1968 return JSGeneratorObject::kSize; |
1941 case JS_MODULE_TYPE: | 1969 case JS_MODULE_TYPE: |
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3246 CAST_ACCESSOR(SeqString) | 3274 CAST_ACCESSOR(SeqString) |
3247 CAST_ACCESSOR(SeqTwoByteString) | 3275 CAST_ACCESSOR(SeqTwoByteString) |
3248 CAST_ACCESSOR(SharedFunctionInfo) | 3276 CAST_ACCESSOR(SharedFunctionInfo) |
3249 CAST_ACCESSOR(SlicedString) | 3277 CAST_ACCESSOR(SlicedString) |
3250 CAST_ACCESSOR(Smi) | 3278 CAST_ACCESSOR(Smi) |
3251 CAST_ACCESSOR(String) | 3279 CAST_ACCESSOR(String) |
3252 CAST_ACCESSOR(StringTable) | 3280 CAST_ACCESSOR(StringTable) |
3253 CAST_ACCESSOR(Struct) | 3281 CAST_ACCESSOR(Struct) |
3254 CAST_ACCESSOR(Symbol) | 3282 CAST_ACCESSOR(Symbol) |
3255 CAST_ACCESSOR(UnseededNumberDictionary) | 3283 CAST_ACCESSOR(UnseededNumberDictionary) |
| 3284 CAST_ACCESSOR(WeakCell) |
3256 CAST_ACCESSOR(WeakHashTable) | 3285 CAST_ACCESSOR(WeakHashTable) |
3257 | 3286 |
3258 | 3287 |
3259 template <class Traits> | 3288 template <class Traits> |
3260 FixedTypedArray<Traits>* FixedTypedArray<Traits>::cast(Object* object) { | 3289 FixedTypedArray<Traits>* FixedTypedArray<Traits>::cast(Object* object) { |
3261 SLOW_DCHECK(object->IsHeapObject() && | 3290 SLOW_DCHECK(object->IsHeapObject() && |
3262 HeapObject::cast(object)->map()->instance_type() == | 3291 HeapObject::cast(object)->map()->instance_type() == |
3263 Traits::kInstanceType); | 3292 Traits::kInstanceType); |
3264 return reinterpret_cast<FixedTypedArray<Traits>*>(object); | 3293 return reinterpret_cast<FixedTypedArray<Traits>*>(object); |
3265 } | 3294 } |
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7258 #undef READ_SHORT_FIELD | 7287 #undef READ_SHORT_FIELD |
7259 #undef WRITE_SHORT_FIELD | 7288 #undef WRITE_SHORT_FIELD |
7260 #undef READ_BYTE_FIELD | 7289 #undef READ_BYTE_FIELD |
7261 #undef WRITE_BYTE_FIELD | 7290 #undef WRITE_BYTE_FIELD |
7262 #undef NOBARRIER_READ_BYTE_FIELD | 7291 #undef NOBARRIER_READ_BYTE_FIELD |
7263 #undef NOBARRIER_WRITE_BYTE_FIELD | 7292 #undef NOBARRIER_WRITE_BYTE_FIELD |
7264 | 7293 |
7265 } } // namespace v8::internal | 7294 } } // namespace v8::internal |
7266 | 7295 |
7267 #endif // V8_OBJECTS_INL_H_ | 7296 #endif // V8_OBJECTS_INL_H_ |
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