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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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1196 // Check if the given name is an array index. | 1196 // Check if the given name is an array index. |
1197 uint32_t index; | 1197 uint32_t index; |
1198 if (name->AsArrayIndex(&index)) { | 1198 if (name->AsArrayIndex(&index)) { |
1199 Handle<Object> result = | 1199 Handle<Object> result = |
1200 JSObject::SetElement(receiver, index, value, NONE, strict_mode()); | 1200 JSObject::SetElement(receiver, index, value, NONE, strict_mode()); |
1201 RETURN_IF_EMPTY_HANDLE(isolate(), result); | 1201 RETURN_IF_EMPTY_HANDLE(isolate(), result); |
1202 return *value; | 1202 return *value; |
1203 } | 1203 } |
1204 | 1204 |
1205 // Observed objects are always modified through the runtime. | 1205 // Observed objects are always modified through the runtime. |
1206 if (receiver->map()->is_observed()) { | 1206 if (FLAG_harmony_observation && receiver->map()->is_observed()) { |
1207 Handle<Object> result = JSReceiver::SetProperty( | 1207 Handle<Object> result = JSReceiver::SetProperty( |
1208 receiver, name, value, NONE, strict_mode(), store_mode); | 1208 receiver, name, value, NONE, strict_mode(), store_mode); |
1209 RETURN_IF_EMPTY_HANDLE(isolate(), result); | 1209 RETURN_IF_EMPTY_HANDLE(isolate(), result); |
1210 return *result; | 1210 return *result; |
1211 } | 1211 } |
1212 | 1212 |
1213 // Use specialized code for setting the length of arrays with fast | 1213 // Use specialized code for setting the length of arrays with fast |
1214 // properties. Slow properties might indicate redefinition of the length | 1214 // properties. Slow properties might indicate redefinition of the length |
1215 // property. Note that when redefined using Object.freeze, it's possible | 1215 // property. Note that when redefined using Object.freeze, it's possible |
1216 // to have fast properties but a read-only length. | 1216 // to have fast properties but a read-only length. |
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1663 Handle<Code> stub = generic_stub(); | 1663 Handle<Code> stub = generic_stub(); |
1664 | 1664 |
1665 if (key->IsInternalizedString()) { | 1665 if (key->IsInternalizedString()) { |
1666 maybe_object = StoreIC::Store(object, | 1666 maybe_object = StoreIC::Store(object, |
1667 Handle<String>::cast(key), | 1667 Handle<String>::cast(key), |
1668 value, | 1668 value, |
1669 JSReceiver::MAY_BE_STORE_FROM_KEYED); | 1669 JSReceiver::MAY_BE_STORE_FROM_KEYED); |
1670 if (maybe_object->IsFailure()) return maybe_object; | 1670 if (maybe_object->IsFailure()) return maybe_object; |
1671 } else { | 1671 } else { |
1672 bool use_ic = FLAG_use_ic && !object->IsAccessCheckNeeded() && | 1672 bool use_ic = FLAG_use_ic && !object->IsAccessCheckNeeded() && |
1673 !(object->IsJSObject() && | 1673 !(FLAG_harmony_observation && object->IsJSObject() && |
1674 JSObject::cast(*object)->map()->is_observed()); | 1674 JSObject::cast(*object)->map()->is_observed()); |
1675 if (use_ic && !object->IsSmi()) { | 1675 if (use_ic && !object->IsSmi()) { |
1676 // Don't use ICs for maps of the objects in Array's prototype chain. We | 1676 // Don't use ICs for maps of the objects in Array's prototype chain. We |
1677 // expect to be able to trap element sets to objects with those maps in | 1677 // expect to be able to trap element sets to objects with those maps in |
1678 // the runtime to enable optimization of element hole access. | 1678 // the runtime to enable optimization of element hole access. |
1679 Handle<HeapObject> heap_object = Handle<HeapObject>::cast(object); | 1679 Handle<HeapObject> heap_object = Handle<HeapObject>::cast(object); |
1680 if (heap_object->map()->IsMapInArrayPrototypeChain()) use_ic = false; | 1680 if (heap_object->map()->IsMapInArrayPrototypeChain()) use_ic = false; |
1681 } | 1681 } |
1682 | 1682 |
1683 if (use_ic) { | 1683 if (use_ic) { |
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2817 #undef ADDR | 2817 #undef ADDR |
2818 }; | 2818 }; |
2819 | 2819 |
2820 | 2820 |
2821 Address IC::AddressFromUtilityId(IC::UtilityId id) { | 2821 Address IC::AddressFromUtilityId(IC::UtilityId id) { |
2822 return IC_utilities[id]; | 2822 return IC_utilities[id]; |
2823 } | 2823 } |
2824 | 2824 |
2825 | 2825 |
2826 } } // namespace v8::internal | 2826 } } // namespace v8::internal |
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