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// Copyright 2014 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #ifndef V8_OBJECTS_PROPERTY_H_ #define V8_OBJECTS_PROPERTY_H_ #include <iosfwd> #include "src/common/globals.h" #include "src/handles/handles.h" #include "src/handles/maybe-handles.h" #include "src/objects/name.h" #include "src/objects/objects.h" #include "src/objects/property-details.h" namespace v8 { namespace internal { // Abstraction for elements in instance-descriptor arrays. // // Each descriptor has a key, property attributes, property type, // property index (in the actual instance-descriptor array) and // optionally a piece of data. class V8_EXPORT_PRIVATE Descriptor final { public: Descriptor(); Handle<Name> GetKey() const { return key_; } MaybeObjectHandle GetValue() const { return value_; } PropertyDetails GetDetails() const { return details_; } void SetSortedKeyIndex(int index) { details_ = details_.set_pointer(index); } static Descriptor DataField(Isolate* isolate, Handle<Name> key, int field_index, PropertyAttributes attributes, Representation representation); static Descriptor DataField(Handle<Name> key, int field_index, PropertyAttributes attributes, PropertyConstness constness, Representation representation, const MaybeObjectHandle& wrapped_field_type); static Descriptor DataConstant(Handle<Name> key, Handle<Object> value, PropertyAttributes attributes); static Descriptor DataConstant(Isolate* isolate, Handle<Name> key, int field_index, Handle<Object> value, PropertyAttributes attributes); static Descriptor AccessorConstant(Handle<Name> key, Handle<Object> foreign, PropertyAttributes attributes); private: Handle<Name> key_; MaybeObjectHandle value_; PropertyDetails details_; protected: Descriptor(Handle<Name> key, const MaybeObjectHandle& value, PropertyDetails details); Descriptor(Handle<Name> key, const MaybeObjectHandle& value, PropertyKind kind, PropertyAttributes attributes, PropertyLocation location, PropertyConstness constness, Representation representation, int field_index); friend class MapUpdater; }; } // namespace internal } // namespace v8 #endif // V8_OBJECTS_PROPERTY_H_