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/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/HashMap.h>
#include <AK/String.h>
#include <LibJS/Forward.h>
#include <LibJS/Runtime/Cell.h>
#include <LibJS/Runtime/PrimitiveString.h>
#include <LibJS/Runtime/PropertyName.h>
#include <LibJS/Runtime/Shape.h>
#include <LibJS/Runtime/Value.h>
namespace JS {
const u8 default_attributes = Attribute::Configurable | Attribute::Writable | Attribute::Enumerable;
class Object : public Cell {
public:
static Object* create_empty(Interpreter&, GlobalObject&);
explicit Object(Object* prototype);
virtual ~Object();
enum class GetOwnPropertyMode {
Key,
Value,
KeyAndValue,
};
enum class PutOwnPropertyMode {
Put,
DefineProperty,
};
Shape& shape() { return *m_shape; }
const Shape& shape() const { return *m_shape; }
Value delete_property(PropertyName);
virtual Value get_by_index(i32 property_index) const;
Value get(const FlyString& property_name) const;
Value get(PropertyName) const;
virtual bool put_by_index(i32 property_index, Value, u8 attributes = default_attributes);
bool put(const FlyString& property_name, Value, u8 attributes = default_attributes);
bool put(PropertyName, Value, u8 attributes = default_attributes);
Value get_own_property(const Object& this_object, const FlyString& property_name) const;
Value get_own_properties(const Object& this_object, GetOwnPropertyMode, u8 attributes = Attribute::Configurable | Attribute::Enumerable | Attribute::Writable) const;
Value get_own_property_descriptor(const FlyString& property_name) const;
bool define_property(const FlyString& property_name, const Object& descriptor, bool throw_exceptions = true);
bool put_own_property(Object& this_object, const FlyString& property_name, u8 attributes, Value, PutOwnPropertyMode, bool throw_exceptions = true);
bool put_native_function(const FlyString& property_name, AK::Function<Value(Interpreter&)>, i32 length = 0, u8 attribute = default_attributes);
bool put_native_property(const FlyString& property_name, AK::Function<Value(Interpreter&)> getter, AK::Function<void(Interpreter&, Value)> setter, u8 attribute = default_attributes);
virtual bool is_array() const { return false; }
virtual bool is_boolean() const { return false; }
virtual bool is_date() const { return false; }
virtual bool is_error() const { return false; }
virtual bool is_function() const { return false; }
virtual bool is_native_function() const { return false; }
virtual bool is_bound_function() const { return false; }
virtual bool is_native_property() const { return false; }
virtual bool is_string_object() const { return false; }
virtual const char* class_name() const override { return "Object"; }
virtual void visit_children(Cell::Visitor&) override;
Object* prototype();
const Object* prototype() const;
void set_prototype(Object*);
bool has_prototype(const Object* prototype) const;
bool has_property(const FlyString& property_name) const;
bool has_own_property(const FlyString& property_name) const;
enum class PreferredType {
Default,
String,
Number,
};
virtual Value value_of() const { return Value(const_cast<Object*>(this)); }
virtual Value to_primitive(PreferredType preferred_type = PreferredType::Default) const;
virtual Value to_string() const;
Value get_direct(size_t index) const { return m_storage[index]; }
const Vector<Value>& elements() const { return m_elements; }
Vector<Value>& elements() { return m_elements; }
private:
void set_shape(Shape&);
void ensure_shape_is_unique();
Shape* m_shape { nullptr };
Vector<Value> m_storage;
Vector<Value> m_elements;
};
}
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