mirror of
https://github.com/RGBCube/serenity
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e6d920d87d
We now care (a little bit) about the "configurable" and "writable" property attributes. Property attributes are stored together with the property name in the Shape object. Forward transitions are not attribute-savvy and will cause poor Shape reuse in the case of multiple same-name properties with different attributes. Oh, and this patch also adds Object.getOwnPropertyDescriptor() :^)
108 lines
4 KiB
C++
108 lines
4 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/HashMap.h>
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#include <AK/String.h>
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#include <LibJS/Forward.h>
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#include <LibJS/Runtime/Cell.h>
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#include <LibJS/Runtime/PrimitiveString.h>
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#include <LibJS/Runtime/PropertyName.h>
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#include <LibJS/Runtime/Value.h>
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namespace JS {
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class Object : public Cell {
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public:
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Object();
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virtual ~Object();
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Shape& shape() { return *m_shape; }
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const Shape& shape() const { return *m_shape; }
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Optional<Value> get_by_index(i32 property_index) const;
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Optional<Value> get(const FlyString& property_name) const;
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Optional<Value> get(PropertyName) const;
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void put_by_index(i32 property_index, Value);
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void put(const FlyString& property_name, Value);
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void put(PropertyName, Value);
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Optional<Value> get_own_property(const Object& this_object, const FlyString& property_name) const;
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enum class PutOwnPropertyMode {
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Put,
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DefineProperty,
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};
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void put_own_property(Object& this_object, const FlyString& property_name, u8 attributes, Value, PutOwnPropertyMode);
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void put_native_function(const FlyString& property_name, AK::Function<Value(Interpreter&)>, i32 length = 0);
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void put_native_property(const FlyString& property_name, AK::Function<Value(Interpreter&)> getter, AK::Function<void(Interpreter&, Value)> setter);
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virtual bool is_array() const { return false; }
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virtual bool is_boolean() const { return false; }
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virtual bool is_date() const { return false; }
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virtual bool is_error() const { return false; }
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virtual bool is_function() const { return false; }
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virtual bool is_native_function() const { return false; }
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virtual bool is_native_property() const { return false; }
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virtual bool is_string_object() const { return false; }
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virtual const char* class_name() const override { return "Object"; }
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virtual void visit_children(Cell::Visitor&) override;
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Object* prototype();
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const Object* prototype() const;
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void set_prototype(Object*);
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bool has_prototype(const Object* prototype) const;
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bool has_own_property(const FlyString& property_name) const;
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enum class PreferredType {
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Default,
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String,
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Number,
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};
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virtual Value value_of() const { return Value(const_cast<Object*>(this)); }
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virtual Value to_primitive(PreferredType preferred_type = PreferredType::Default) const;
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virtual Value to_string() const;
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Value get_direct(size_t index) const { return m_storage[index]; }
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const Vector<Value>& elements() const { return m_elements; }
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Vector<Value>& elements() { return m_elements; }
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private:
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void set_shape(Shape&);
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Shape* m_shape { nullptr };
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Vector<Value> m_storage;
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Vector<Value> m_elements;
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};
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}
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