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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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415 obj->SetPrototype(*value, skip_hidden_prototypes), Object); | 415 obj->SetPrototype(*value, skip_hidden_prototypes), Object); |
416 } | 416 } |
417 | 417 |
418 | 418 |
419 Handle<Object> PreventExtensions(Handle<JSObject> object) { | 419 Handle<Object> PreventExtensions(Handle<JSObject> object) { |
420 CALL_HEAP_FUNCTION(object->GetIsolate(), object->PreventExtensions(), Object); | 420 CALL_HEAP_FUNCTION(object->GetIsolate(), object->PreventExtensions(), Object); |
421 } | 421 } |
422 | 422 |
423 | 423 |
424 Handle<Object> GetHiddenProperties(Handle<JSObject> obj, | 424 Handle<Object> GetHiddenProperties(Handle<JSObject> obj, |
425 bool create_if_needed) { | 425 JSObject::HiddenPropertiesFlag flag) { |
426 Isolate* isolate = obj->GetIsolate(); | 426 CALL_HEAP_FUNCTION(obj->GetIsolate(), |
427 Object* holder = obj->BypassGlobalProxy(); | 427 obj->GetHiddenProperties(flag), |
428 if (holder->IsUndefined()) return isolate->factory()->undefined_value(); | 428 Object); |
429 obj = Handle<JSObject>(JSObject::cast(holder), isolate); | |
430 | |
431 if (obj->HasFastProperties()) { | |
432 // If the object has fast properties, check whether the first slot | |
433 // in the descriptor array matches the hidden symbol. Since the | |
434 // hidden symbols hash code is zero (and no other string has hash | |
435 // code zero) it will always occupy the first entry if present. | |
436 DescriptorArray* descriptors = obj->map()->instance_descriptors(); | |
437 if ((descriptors->number_of_descriptors() > 0) && | |
438 (descriptors->GetKey(0) == isolate->heap()->hidden_symbol()) && | |
439 descriptors->IsProperty(0)) { | |
440 ASSERT(descriptors->GetType(0) == FIELD); | |
441 return Handle<Object>(obj->FastPropertyAt(descriptors->GetFieldIndex(0)), | |
442 isolate); | |
443 } | |
444 } | |
445 | |
446 // Only attempt to find the hidden properties in the local object and not | |
447 // in the prototype chain. Note that HasLocalProperty() can cause a GC in | |
448 // the general case in the presence of interceptors. | |
449 if (!obj->HasHiddenPropertiesObject()) { | |
450 // Hidden properties object not found. Allocate a new hidden properties | |
451 // object if requested. Otherwise return the undefined value. | |
452 if (create_if_needed) { | |
453 Handle<Object> hidden_obj = | |
454 isolate->factory()->NewJSObject(isolate->object_function()); | |
455 CALL_HEAP_FUNCTION(isolate, | |
456 obj->SetHiddenPropertiesObject(*hidden_obj), Object); | |
457 } else { | |
458 return isolate->factory()->undefined_value(); | |
459 } | |
460 } | |
461 return Handle<Object>(obj->GetHiddenPropertiesObject(), isolate); | |
462 } | 429 } |
463 | 430 |
464 | 431 |
| 432 int GetIdentityHash(Handle<JSObject> obj) { |
| 433 CALL_AND_RETRY(obj->GetIsolate(), |
| 434 obj->GetIdentityHash(JSObject::ALLOW_CREATION), |
| 435 return Smi::cast(__object__)->value(), |
| 436 return 0); |
| 437 } |
| 438 |
| 439 |
465 Handle<Object> DeleteElement(Handle<JSObject> obj, | 440 Handle<Object> DeleteElement(Handle<JSObject> obj, |
466 uint32_t index) { | 441 uint32_t index) { |
467 CALL_HEAP_FUNCTION(obj->GetIsolate(), | 442 CALL_HEAP_FUNCTION(obj->GetIsolate(), |
468 obj->DeleteElement(index, JSObject::NORMAL_DELETION), | 443 obj->DeleteElement(index, JSObject::NORMAL_DELETION), |
469 Object); | 444 Object); |
470 } | 445 } |
471 | 446 |
472 | 447 |
473 Handle<Object> DeleteProperty(Handle<JSObject> obj, | 448 Handle<Object> DeleteProperty(Handle<JSObject> obj, |
474 Handle<String> prop) { | 449 Handle<String> prop) { |
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901 } else { | 876 } else { |
902 int num_enum = object->NumberOfEnumProperties(); | 877 int num_enum = object->NumberOfEnumProperties(); |
903 Handle<FixedArray> storage = isolate->factory()->NewFixedArray(num_enum); | 878 Handle<FixedArray> storage = isolate->factory()->NewFixedArray(num_enum); |
904 Handle<FixedArray> sort_array = isolate->factory()->NewFixedArray(num_enum); | 879 Handle<FixedArray> sort_array = isolate->factory()->NewFixedArray(num_enum); |
905 object->property_dictionary()->CopyEnumKeysTo(*storage, *sort_array); | 880 object->property_dictionary()->CopyEnumKeysTo(*storage, *sort_array); |
906 return storage; | 881 return storage; |
907 } | 882 } |
908 } | 883 } |
909 | 884 |
910 | 885 |
| 886 Handle<ObjectHashTable> PutIntoObjectHashTable(Handle<ObjectHashTable> table, |
| 887 Handle<JSObject> key, |
| 888 Handle<Object> value) { |
| 889 CALL_HEAP_FUNCTION(table->GetIsolate(), |
| 890 table->Put(*key, *value), |
| 891 ObjectHashTable); |
| 892 } |
| 893 |
| 894 |
911 bool EnsureCompiled(Handle<SharedFunctionInfo> shared, | 895 bool EnsureCompiled(Handle<SharedFunctionInfo> shared, |
912 ClearExceptionFlag flag) { | 896 ClearExceptionFlag flag) { |
913 return shared->is_compiled() || CompileLazyShared(shared, flag); | 897 return shared->is_compiled() || CompileLazyShared(shared, flag); |
914 } | 898 } |
915 | 899 |
916 | 900 |
917 static bool CompileLazyHelper(CompilationInfo* info, | 901 static bool CompileLazyHelper(CompilationInfo* info, |
918 ClearExceptionFlag flag) { | 902 ClearExceptionFlag flag) { |
919 // Compile the source information to a code object. | 903 // Compile the source information to a code object. |
920 ASSERT(info->IsOptimizing() || !info->shared_info()->is_compiled()); | 904 ASSERT(info->IsOptimizing() || !info->shared_info()->is_compiled()); |
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966 | 950 |
967 bool CompileOptimized(Handle<JSFunction> function, | 951 bool CompileOptimized(Handle<JSFunction> function, |
968 int osr_ast_id, | 952 int osr_ast_id, |
969 ClearExceptionFlag flag) { | 953 ClearExceptionFlag flag) { |
970 CompilationInfo info(function); | 954 CompilationInfo info(function); |
971 info.SetOptimizing(osr_ast_id); | 955 info.SetOptimizing(osr_ast_id); |
972 return CompileLazyHelper(&info, flag); | 956 return CompileLazyHelper(&info, flag); |
973 } | 957 } |
974 | 958 |
975 } } // namespace v8::internal | 959 } } // namespace v8::internal |
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