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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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1010 } | 1010 } |
1011 | 1011 |
1012 | 1012 |
1013 bool Object::IsGlobalObject() const { | 1013 bool Object::IsGlobalObject() const { |
1014 if (!IsHeapObject()) return false; | 1014 if (!IsHeapObject()) return false; |
1015 return HeapObject::cast(this)->map()->IsGlobalObjectMap(); | 1015 return HeapObject::cast(this)->map()->IsGlobalObjectMap(); |
1016 } | 1016 } |
1017 | 1017 |
1018 | 1018 |
1019 TYPE_CHECKER(JSGlobalObject, JS_GLOBAL_OBJECT_TYPE) | 1019 TYPE_CHECKER(JSGlobalObject, JS_GLOBAL_OBJECT_TYPE) |
1020 TYPE_CHECKER(JSBuiltinsObject, JS_BUILTINS_OBJECT_TYPE) | |
1021 | 1020 |
1022 | 1021 |
1023 bool Object::IsUndetectableObject() const { | 1022 bool Object::IsUndetectableObject() const { |
1024 return IsHeapObject() | 1023 return IsHeapObject() |
1025 && HeapObject::cast(this)->map()->is_undetectable(); | 1024 && HeapObject::cast(this)->map()->is_undetectable(); |
1026 } | 1025 } |
1027 | 1026 |
1028 | 1027 |
1029 bool Object::IsAccessCheckNeeded() const { | 1028 bool Object::IsAccessCheckNeeded() const { |
1030 if (!IsHeapObject()) return false; | 1029 if (!IsHeapObject()) return false; |
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2140 if (type == JS_OBJECT_TYPE) return JSObject::kHeaderSize; | 2139 if (type == JS_OBJECT_TYPE) return JSObject::kHeaderSize; |
2141 switch (type) { | 2140 switch (type) { |
2142 case JS_GENERATOR_OBJECT_TYPE: | 2141 case JS_GENERATOR_OBJECT_TYPE: |
2143 return JSGeneratorObject::kSize; | 2142 return JSGeneratorObject::kSize; |
2144 case JS_MODULE_TYPE: | 2143 case JS_MODULE_TYPE: |
2145 return JSModule::kSize; | 2144 return JSModule::kSize; |
2146 case JS_GLOBAL_PROXY_TYPE: | 2145 case JS_GLOBAL_PROXY_TYPE: |
2147 return JSGlobalProxy::kSize; | 2146 return JSGlobalProxy::kSize; |
2148 case JS_GLOBAL_OBJECT_TYPE: | 2147 case JS_GLOBAL_OBJECT_TYPE: |
2149 return JSGlobalObject::kSize; | 2148 return JSGlobalObject::kSize; |
2150 case JS_BUILTINS_OBJECT_TYPE: | |
2151 return JSBuiltinsObject::kSize; | |
2152 case JS_FUNCTION_TYPE: | 2149 case JS_FUNCTION_TYPE: |
2153 return JSFunction::kSize; | 2150 return JSFunction::kSize; |
2154 case JS_VALUE_TYPE: | 2151 case JS_VALUE_TYPE: |
2155 return JSValue::kSize; | 2152 return JSValue::kSize; |
2156 case JS_DATE_TYPE: | 2153 case JS_DATE_TYPE: |
2157 return JSDate::kSize; | 2154 return JSDate::kSize; |
2158 case JS_ARRAY_TYPE: | 2155 case JS_ARRAY_TYPE: |
2159 return JSArray::kSize; | 2156 return JSArray::kSize; |
2160 case JS_ARRAY_BUFFER_TYPE: | 2157 case JS_ARRAY_BUFFER_TYPE: |
2161 return JSArrayBuffer::kSize; | 2158 return JSArrayBuffer::kSize; |
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3307 CAST_ACCESSOR(GlobalDictionary) | 3304 CAST_ACCESSOR(GlobalDictionary) |
3308 CAST_ACCESSOR(GlobalObject) | 3305 CAST_ACCESSOR(GlobalObject) |
3309 CAST_ACCESSOR(HandlerTable) | 3306 CAST_ACCESSOR(HandlerTable) |
3310 CAST_ACCESSOR(HeapObject) | 3307 CAST_ACCESSOR(HeapObject) |
3311 CAST_ACCESSOR(Int16x8) | 3308 CAST_ACCESSOR(Int16x8) |
3312 CAST_ACCESSOR(Int32x4) | 3309 CAST_ACCESSOR(Int32x4) |
3313 CAST_ACCESSOR(Int8x16) | 3310 CAST_ACCESSOR(Int8x16) |
3314 CAST_ACCESSOR(JSArray) | 3311 CAST_ACCESSOR(JSArray) |
3315 CAST_ACCESSOR(JSArrayBuffer) | 3312 CAST_ACCESSOR(JSArrayBuffer) |
3316 CAST_ACCESSOR(JSArrayBufferView) | 3313 CAST_ACCESSOR(JSArrayBufferView) |
3317 CAST_ACCESSOR(JSBuiltinsObject) | |
3318 CAST_ACCESSOR(JSDataView) | 3314 CAST_ACCESSOR(JSDataView) |
3319 CAST_ACCESSOR(JSDate) | 3315 CAST_ACCESSOR(JSDate) |
3320 CAST_ACCESSOR(JSFunction) | 3316 CAST_ACCESSOR(JSFunction) |
3321 CAST_ACCESSOR(JSFunctionProxy) | 3317 CAST_ACCESSOR(JSFunctionProxy) |
3322 CAST_ACCESSOR(JSGeneratorObject) | 3318 CAST_ACCESSOR(JSGeneratorObject) |
3323 CAST_ACCESSOR(JSGlobalObject) | 3319 CAST_ACCESSOR(JSGlobalObject) |
3324 CAST_ACCESSOR(JSGlobalProxy) | 3320 CAST_ACCESSOR(JSGlobalProxy) |
3325 CAST_ACCESSOR(JSMap) | 3321 CAST_ACCESSOR(JSMap) |
3326 CAST_ACCESSOR(JSMapIterator) | 3322 CAST_ACCESSOR(JSMapIterator) |
3327 CAST_ACCESSOR(JSMessageObject) | 3323 CAST_ACCESSOR(JSMessageObject) |
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4918 } | 4914 } |
4919 bool Map::IsJSGlobalProxyMap() { | 4915 bool Map::IsJSGlobalProxyMap() { |
4920 return instance_type() == JS_GLOBAL_PROXY_TYPE; | 4916 return instance_type() == JS_GLOBAL_PROXY_TYPE; |
4921 } | 4917 } |
4922 bool Map::IsJSGlobalObjectMap() { | 4918 bool Map::IsJSGlobalObjectMap() { |
4923 return instance_type() == JS_GLOBAL_OBJECT_TYPE; | 4919 return instance_type() == JS_GLOBAL_OBJECT_TYPE; |
4924 } | 4920 } |
4925 bool Map::IsJSTypedArrayMap() { return instance_type() == JS_TYPED_ARRAY_TYPE; } | 4921 bool Map::IsJSTypedArrayMap() { return instance_type() == JS_TYPED_ARRAY_TYPE; } |
4926 bool Map::IsGlobalObjectMap() { | 4922 bool Map::IsGlobalObjectMap() { |
4927 const InstanceType type = instance_type(); | 4923 const InstanceType type = instance_type(); |
4928 return type == JS_GLOBAL_OBJECT_TYPE || type == JS_BUILTINS_OBJECT_TYPE; | 4924 return type == JS_GLOBAL_OBJECT_TYPE; |
4929 } | 4925 } |
4930 | 4926 |
4931 | 4927 |
4932 bool Map::CanOmitMapChecks() { | 4928 bool Map::CanOmitMapChecks() { |
4933 return is_stable() && FLAG_omit_map_checks_for_leaf_maps; | 4929 return is_stable() && FLAG_omit_map_checks_for_leaf_maps; |
4934 } | 4930 } |
4935 | 4931 |
4936 | 4932 |
4937 int DependentCode::number_of_entries(DependencyGroup group) { | 4933 int DependentCode::number_of_entries(DependencyGroup group) { |
4938 if (length() == 0) return 0; | 4934 if (length() == 0) return 0; |
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5619 // Never overwrite a back pointer with a constructor. | 5615 // Never overwrite a back pointer with a constructor. |
5620 DCHECK(!constructor_or_backpointer()->IsMap()); | 5616 DCHECK(!constructor_or_backpointer()->IsMap()); |
5621 set_constructor_or_backpointer(constructor, mode); | 5617 set_constructor_or_backpointer(constructor, mode); |
5622 } | 5618 } |
5623 | 5619 |
5624 | 5620 |
5625 ACCESSORS(JSFunction, shared, SharedFunctionInfo, kSharedFunctionInfoOffset) | 5621 ACCESSORS(JSFunction, shared, SharedFunctionInfo, kSharedFunctionInfoOffset) |
5626 ACCESSORS(JSFunction, literals_or_bindings, FixedArray, kLiteralsOffset) | 5622 ACCESSORS(JSFunction, literals_or_bindings, FixedArray, kLiteralsOffset) |
5627 ACCESSORS(JSFunction, next_function_link, Object, kNextFunctionLinkOffset) | 5623 ACCESSORS(JSFunction, next_function_link, Object, kNextFunctionLinkOffset) |
5628 | 5624 |
5629 ACCESSORS(GlobalObject, builtins, JSBuiltinsObject, kBuiltinsOffset) | |
5630 ACCESSORS(GlobalObject, native_context, Context, kNativeContextOffset) | 5625 ACCESSORS(GlobalObject, native_context, Context, kNativeContextOffset) |
5631 ACCESSORS(GlobalObject, global_proxy, JSObject, kGlobalProxyOffset) | 5626 ACCESSORS(GlobalObject, global_proxy, JSObject, kGlobalProxyOffset) |
5632 | 5627 |
5633 ACCESSORS(JSGlobalProxy, native_context, Object, kNativeContextOffset) | 5628 ACCESSORS(JSGlobalProxy, native_context, Object, kNativeContextOffset) |
5634 ACCESSORS(JSGlobalProxy, hash, Object, kHashOffset) | 5629 ACCESSORS(JSGlobalProxy, hash, Object, kHashOffset) |
5635 | 5630 |
5636 ACCESSORS(AccessorInfo, name, Object, kNameOffset) | 5631 ACCESSORS(AccessorInfo, name, Object, kNameOffset) |
5637 SMI_ACCESSORS(AccessorInfo, flag, kFlagOffset) | 5632 SMI_ACCESSORS(AccessorInfo, flag, kFlagOffset) |
5638 ACCESSORS(AccessorInfo, expected_receiver_type, Object, | 5633 ACCESSORS(AccessorInfo, expected_receiver_type, Object, |
5639 kExpectedReceiverTypeOffset) | 5634 kExpectedReceiverTypeOffset) |
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8132 #undef WRITE_INT64_FIELD | 8127 #undef WRITE_INT64_FIELD |
8133 #undef READ_BYTE_FIELD | 8128 #undef READ_BYTE_FIELD |
8134 #undef WRITE_BYTE_FIELD | 8129 #undef WRITE_BYTE_FIELD |
8135 #undef NOBARRIER_READ_BYTE_FIELD | 8130 #undef NOBARRIER_READ_BYTE_FIELD |
8136 #undef NOBARRIER_WRITE_BYTE_FIELD | 8131 #undef NOBARRIER_WRITE_BYTE_FIELD |
8137 | 8132 |
8138 } // namespace internal | 8133 } // namespace internal |
8139 } // namespace v8 | 8134 } // namespace v8 |
8140 | 8135 |
8141 #endif // V8_OBJECTS_INL_H_ | 8136 #endif // V8_OBJECTS_INL_H_ |
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