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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 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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| 1074 } | 1074 } |
| 1075 return Failure::Exception(); | 1075 return Failure::Exception(); |
| 1076 } | 1076 } |
| 1077 | 1077 |
| 1078 | 1078 |
| 1079 bool Object::HasSpecificClassOf(String* name) { | 1079 bool Object::HasSpecificClassOf(String* name) { |
| 1080 return this->IsJSObject() && (JSObject::cast(this)->class_name() == name); | 1080 return this->IsJSObject() && (JSObject::cast(this)->class_name() == name); |
| 1081 } | 1081 } |
| 1082 | 1082 |
| 1083 | 1083 |
| 1084 MaybeHandle<Object> Object::GetProperty(Handle<Object> object, | |
| 1085 Handle<Name> name) { | |
| 1086 PropertyAttributes attributes; | |
| 1087 return GetPropertyWithReceiver(object, object, name, &attributes); | |
| 1088 } | |
| 1089 | |
| 1090 | |
| 1091 MaybeHandle<Object> Object::GetElement(Isolate* isolate, | 1084 MaybeHandle<Object> Object::GetElement(Isolate* isolate, |
| 1092 Handle<Object> object, | 1085 Handle<Object> object, |
| 1093 uint32_t index) { | 1086 uint32_t index) { |
| 1094 // GetElement can trigger a getter which can cause allocation. | 1087 // GetElement can trigger a getter which can cause allocation. |
| 1095 // This was not always the case. This ASSERT is here to catch | 1088 // This was not always the case. This ASSERT is here to catch |
| 1096 // leftover incorrect uses. | 1089 // leftover incorrect uses. |
| 1097 ASSERT(AllowHeapAllocation::IsAllowed()); | 1090 ASSERT(AllowHeapAllocation::IsAllowed()); |
| 1098 return Object::GetElementWithReceiver(isolate, object, object, index); | 1091 return Object::GetElementWithReceiver(isolate, object, object, index); |
| 1099 } | 1092 } |
| 1100 | 1093 |
| 1101 | 1094 |
| 1102 MaybeHandle<Object> Object::GetPropertyOrElement(Handle<Object> object, | 1095 Handle<Object> Object::GetElementNoExceptionThrown(Isolate* isolate, |
| 1103 Handle<Name> name) { | 1096 Handle<Object> object, |
| 1104 uint32_t index; | 1097 uint32_t index) { |
| 1105 Isolate* isolate = name->GetIsolate(); | 1098 Handle<Object> result = |
| 1106 if (name->AsArrayIndex(&index)) return GetElement(isolate, object, index); | 1099 Object::GetElementWithReceiver( |
| 1107 return GetProperty(object, name); | 1100 isolate, object, object, index).ToHandleChecked(); |
| 1101 return result; |
| 1108 } | 1102 } |
| 1109 | 1103 |
| 1110 | 1104 |
| 1111 MaybeHandle<Object> JSProxy::GetElementWithHandler(Handle<JSProxy> proxy, | 1105 MaybeObject* Object::GetProperty(Name* key) { |
| 1112 Handle<Object> receiver, | 1106 PropertyAttributes attributes; |
| 1113 uint32_t index) { | 1107 return GetPropertyWithReceiver(this, key, &attributes); |
| 1114 return GetPropertyWithHandler( | |
| 1115 proxy, receiver, proxy->GetIsolate()->factory()->Uint32ToString(index)); | |
| 1116 } | 1108 } |
| 1117 | 1109 |
| 1118 | 1110 |
| 1119 MaybeHandle<Object> JSProxy::SetElementWithHandler(Handle<JSProxy> proxy, | |
| 1120 Handle<JSReceiver> receiver, | |
| 1121 uint32_t index, | |
| 1122 Handle<Object> value, | |
| 1123 StrictMode strict_mode) { | |
| 1124 Isolate* isolate = proxy->GetIsolate(); | |
| 1125 Handle<String> name = isolate->factory()->Uint32ToString(index); | |
| 1126 return SetPropertyWithHandler( | |
| 1127 proxy, receiver, name, value, NONE, strict_mode); | |
| 1128 } | |
| 1129 | |
| 1130 | |
| 1131 bool JSProxy::HasElementWithHandler(Handle<JSProxy> proxy, uint32_t index) { | |
| 1132 Isolate* isolate = proxy->GetIsolate(); | |
| 1133 Handle<String> name = isolate->factory()->Uint32ToString(index); | |
| 1134 return HasPropertyWithHandler(proxy, name); | |
| 1135 } | |
| 1136 | |
| 1137 | |
| 1138 #define FIELD_ADDR(p, offset) \ | 1111 #define FIELD_ADDR(p, offset) \ |
| 1139 (reinterpret_cast<byte*>(p) + offset - kHeapObjectTag) | 1112 (reinterpret_cast<byte*>(p) + offset - kHeapObjectTag) |
| 1140 | 1113 |
| 1141 #define READ_FIELD(p, offset) \ | 1114 #define READ_FIELD(p, offset) \ |
| 1142 (*reinterpret_cast<Object**>(FIELD_ADDR(p, offset))) | 1115 (*reinterpret_cast<Object**>(FIELD_ADDR(p, offset))) |
| 1143 | 1116 |
| 1144 #define ACQUIRE_READ_FIELD(p, offset) \ | 1117 #define ACQUIRE_READ_FIELD(p, offset) \ |
| 1145 reinterpret_cast<Object*>( \ | 1118 reinterpret_cast<Object*>( \ |
| 1146 Acquire_Load(reinterpret_cast<AtomicWord*>(FIELD_ADDR(p, offset)))) | 1119 Acquire_Load(reinterpret_cast<AtomicWord*>(FIELD_ADDR(p, offset)))) |
| 1147 | 1120 |
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| 3044 | 3017 |
| 3045 | 3018 |
| 3046 void Name::set_hash_field(uint32_t value) { | 3019 void Name::set_hash_field(uint32_t value) { |
| 3047 WRITE_UINT32_FIELD(this, kHashFieldOffset, value); | 3020 WRITE_UINT32_FIELD(this, kHashFieldOffset, value); |
| 3048 #if V8_HOST_ARCH_64_BIT | 3021 #if V8_HOST_ARCH_64_BIT |
| 3049 WRITE_UINT32_FIELD(this, kHashFieldOffset + kIntSize, 0); | 3022 WRITE_UINT32_FIELD(this, kHashFieldOffset + kIntSize, 0); |
| 3050 #endif | 3023 #endif |
| 3051 } | 3024 } |
| 3052 | 3025 |
| 3053 | 3026 |
| 3027 Handle<Object> GlobalObject::GetPropertyNoExceptionThrown( |
| 3028 Handle<GlobalObject> global, |
| 3029 Handle<Name> name) { |
| 3030 Handle<Object> result = Object::GetProperty(global, name); |
| 3031 CHECK_NOT_EMPTY_HANDLE(name->GetIsolate(), result); |
| 3032 return result; |
| 3033 } |
| 3034 |
| 3035 |
| 3054 bool Name::Equals(Name* other) { | 3036 bool Name::Equals(Name* other) { |
| 3055 if (other == this) return true; | 3037 if (other == this) return true; |
| 3056 if ((this->IsInternalizedString() && other->IsInternalizedString()) || | 3038 if ((this->IsInternalizedString() && other->IsInternalizedString()) || |
| 3057 this->IsSymbol() || other->IsSymbol()) { | 3039 this->IsSymbol() || other->IsSymbol()) { |
| 3058 return false; | 3040 return false; |
| 3059 } | 3041 } |
| 3060 return String::cast(this)->SlowEquals(String::cast(other)); | 3042 return String::cast(this)->SlowEquals(String::cast(other)); |
| 3061 } | 3043 } |
| 3062 | 3044 |
| 3063 | 3045 |
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| 7106 #undef READ_SHORT_FIELD | 7088 #undef READ_SHORT_FIELD |
| 7107 #undef WRITE_SHORT_FIELD | 7089 #undef WRITE_SHORT_FIELD |
| 7108 #undef READ_BYTE_FIELD | 7090 #undef READ_BYTE_FIELD |
| 7109 #undef WRITE_BYTE_FIELD | 7091 #undef WRITE_BYTE_FIELD |
| 7110 #undef NOBARRIER_READ_BYTE_FIELD | 7092 #undef NOBARRIER_READ_BYTE_FIELD |
| 7111 #undef NOBARRIER_WRITE_BYTE_FIELD | 7093 #undef NOBARRIER_WRITE_BYTE_FIELD |
| 7112 | 7094 |
| 7113 } } // namespace v8::internal | 7095 } } // namespace v8::internal |
| 7114 | 7096 |
| 7115 #endif // V8_OBJECTS_INL_H_ | 7097 #endif // V8_OBJECTS_INL_H_ |
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