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Libraries: Move to Userland/Libraries/
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Andreas Kling
parent
dc28c07fa5
commit
13d7c09125
1857 changed files with 266 additions and 274 deletions
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/*
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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/IndexedProperties.h>
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#include <LibJS/Runtime/MarkedValueList.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/Shape.h>
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#include <LibJS/Runtime/Value.h>
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namespace JS {
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#define JS_OBJECT(class_, base_class) \
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public: \
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using Base = base_class; \
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virtual const char* class_name() const override { return #class_; }
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struct PropertyDescriptor {
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PropertyAttributes attributes;
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Value value;
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Function* getter { nullptr };
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Function* setter { nullptr };
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static PropertyDescriptor from_dictionary(VM&, const Object&);
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bool is_accessor_descriptor() const { return getter || setter; }
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bool is_data_descriptor() const { return !(value.is_empty() && !attributes.has_writable()); }
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bool is_generic_descriptor() const { return !is_accessor_descriptor() && !is_data_descriptor(); }
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};
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class Object : public Cell {
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public:
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static Object* create_empty(GlobalObject&);
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explicit Object(Object& prototype);
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explicit Object(Shape&);
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virtual void initialize(GlobalObject&) override;
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virtual ~Object();
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enum class PropertyKind {
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Key,
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Value,
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KeyAndValue,
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};
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enum class GetOwnPropertyReturnType {
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StringOnly,
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SymbolOnly,
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};
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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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Shape& shape() { return *m_shape; }
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const Shape& shape() const { return *m_shape; }
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GlobalObject& global_object() const { return *shape().global_object(); }
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virtual Value get(const PropertyName&, Value receiver = {}) const;
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virtual bool has_property(const PropertyName&) const;
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bool has_own_property(const PropertyName&) const;
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virtual bool put(const PropertyName&, Value, Value receiver = {});
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Value get_own_property(const PropertyName&, Value receiver) const;
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Value get_own_properties(const Object& this_object, PropertyKind, bool only_enumerable_properties = false, GetOwnPropertyReturnType = GetOwnPropertyReturnType::StringOnly) const;
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virtual Optional<PropertyDescriptor> get_own_property_descriptor(const PropertyName&) const;
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Value get_own_property_descriptor_object(const PropertyName&) const;
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virtual bool define_property(const StringOrSymbol& property_name, const Object& descriptor, bool throw_exceptions = true);
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bool define_property(const PropertyName&, Value value, PropertyAttributes attributes = default_attributes, bool throw_exceptions = true);
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bool define_property_without_transition(const PropertyName&, Value value, PropertyAttributes attributes = default_attributes, bool throw_exceptions = true);
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bool define_accessor(const PropertyName&, Function& getter_or_setter, bool is_getter, PropertyAttributes attributes = default_attributes, bool throw_exceptions = true);
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bool define_native_function(const StringOrSymbol& property_name, AK::Function<Value(VM&, GlobalObject&)>, i32 length = 0, PropertyAttributes attributes = default_attributes);
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bool define_native_property(const StringOrSymbol& property_name, AK::Function<Value(VM&, GlobalObject&)> getter, AK::Function<void(VM&, GlobalObject&, Value)> setter, PropertyAttributes attributes = default_attributes);
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virtual Value delete_property(const PropertyName&);
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virtual bool is_array() const { return false; }
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virtual bool is_function() const { return false; }
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virtual bool is_typed_array() const { return false; }
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virtual const char* class_name() const override { return "Object"; }
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virtual void visit_edges(Cell::Visitor&) override;
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virtual Object* prototype();
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virtual const Object* prototype() const;
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virtual bool set_prototype(Object* prototype);
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bool has_prototype(const Object* prototype) const;
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virtual bool is_extensible() const { return m_is_extensible; }
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virtual bool prevent_extensions();
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virtual Value value_of() const { return Value(const_cast<Object*>(this)); }
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virtual Value ordinary_to_primitive(Value::PreferredType preferred_type) const;
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Value get_direct(size_t index) const { return m_storage[index]; }
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const IndexedProperties& indexed_properties() const { return m_indexed_properties; }
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IndexedProperties& indexed_properties() { return m_indexed_properties; }
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void set_indexed_property_elements(Vector<Value>&& values) { m_indexed_properties = IndexedProperties(move(values)); }
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Value invoke(const StringOrSymbol& property_name, Optional<MarkedValueList> arguments = {});
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void ensure_shape_is_unique();
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void enable_transitions() { m_transitions_enabled = true; }
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void disable_transitions() { m_transitions_enabled = false; }
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protected:
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enum class GlobalObjectTag { Tag };
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enum class ConstructWithoutPrototypeTag { Tag };
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explicit Object(GlobalObjectTag);
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Object(ConstructWithoutPrototypeTag, GlobalObject&);
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virtual Value get_by_index(u32 property_index) const;
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virtual bool put_by_index(u32 property_index, Value);
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private:
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bool put_own_property(Object& this_object, const StringOrSymbol& property_name, Value, PropertyAttributes attributes, PutOwnPropertyMode = PutOwnPropertyMode::Put, bool throw_exceptions = true);
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bool put_own_property_by_index(Object& this_object, u32 property_index, Value, PropertyAttributes attributes, PutOwnPropertyMode = PutOwnPropertyMode::Put, bool throw_exceptions = true);
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Value call_native_property_getter(NativeProperty& property, Value this_value) const;
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void call_native_property_setter(NativeProperty& property, Value this_value, Value) const;
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void set_shape(Shape&);
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bool m_is_extensible { true };
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bool m_transitions_enabled { true };
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Shape* m_shape { nullptr };
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Vector<Value> m_storage;
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IndexedProperties m_indexed_properties;
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};
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}
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