// Copyright 2015 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_DESCRIPTOR_H_ #define V8_OBJECTS_PROPERTY_DESCRIPTOR_H_ #include "src/handles/handles.h" #include "src/objects/property-details.h" namespace v8 { namespace internal { class Isolate; class Object; class PropertyDescriptorObject; class PropertyDescriptor { public: PropertyDescriptor() : enumerable_(false), has_enumerable_(false), configurable_(false), has_configurable_(false), writable_(false), has_writable_(false) {} // ES6 6.2.4.1 static bool IsAccessorDescriptor(PropertyDescriptor* desc) { return desc->has_get() || desc->has_set(); } // ES6 6.2.4.2 static bool IsDataDescriptor(PropertyDescriptor* desc) { return desc->has_value() || desc->has_writable(); } // ES6 6.2.4.3 static bool IsGenericDescriptor(PropertyDescriptor* desc) { return !IsAccessorDescriptor(desc) && !IsDataDescriptor(desc); } // ES6 6.2.4.4 Handle<Object> ToObject(Isolate* isolate); Handle<PropertyDescriptorObject> ToPropertyDescriptorObject(Isolate* isolate); // ES6 6.2.4.5 static bool ToPropertyDescriptor(Isolate* isolate, Handle<Object> obj, PropertyDescriptor* desc); // ES6 6.2.4.6 static void CompletePropertyDescriptor(Isolate* isolate, PropertyDescriptor* desc); bool is_empty() const { return !has_enumerable() && !has_configurable() && !has_writable() && !has_value() && !has_get() && !has_set(); } bool IsRegularAccessorProperty() const { return has_configurable() && has_enumerable() && !has_value() && !has_writable() && has_get() && has_set(); } bool IsRegularDataProperty() const { return has_configurable() && has_enumerable() && has_value() && has_writable() && !has_get() && !has_set(); } bool enumerable() const { return enumerable_; } void set_enumerable(bool enumerable) { enumerable_ = enumerable; has_enumerable_ = true; } bool has_enumerable() const { return has_enumerable_; } bool configurable() const { return configurable_; } void set_configurable(bool configurable) { configurable_ = configurable; has_configurable_ = true; } bool has_configurable() const { return has_configurable_; } Handle<Object> value() const { return value_; } void set_value(Handle<Object> value) { value_ = value; } bool has_value() const { return !value_.is_null(); } bool writable() const { return writable_; } void set_writable(bool writable) { writable_ = writable; has_writable_ = true; } bool has_writable() const { return has_writable_; } Handle<Object> get() const { return get_; } void set_get(Handle<Object> get) { get_ = get; } bool has_get() const { return !get_.is_null(); } Handle<Object> set() const { return set_; } void set_set(Handle<Object> set) { set_ = set; } bool has_set() const { return !set_.is_null(); } Handle<Object> name() const { return name_; } void set_name(Handle<Object> name) { name_ = name; } PropertyAttributes ToAttributes() { return static_cast<PropertyAttributes>( (has_enumerable() && !enumerable() ? DONT_ENUM : NONE) | (has_configurable() && !configurable() ? DONT_DELETE : NONE) | (has_writable() && !writable() ? READ_ONLY : NONE)); } private: bool enumerable_ : 1; bool has_enumerable_ : 1; bool configurable_ : 1; bool has_configurable_ : 1; bool writable_ : 1; bool has_writable_ : 1; Handle<Object> value_; Handle<Object> get_; Handle<Object> set_; Handle<Object> name_; // Some compilers (Xcode 5.1, ARM GCC 4.9) insist on having a copy // constructor for std::vector<PropertyDescriptor>, so we can't // DISALLOW_COPY_AND_ASSIGN(PropertyDescriptor); here. }; } // namespace internal } // namespace v8 #endif // V8_OBJECTS_PROPERTY_DESCRIPTOR_H_