493a04d5fe
We can now tell the difference between an own property access and a subsequent (automatic) prototype chain access. This will be used to implement caching of prototype chain accesses.
43 lines
1.4 KiB
C++
43 lines
1.4 KiB
C++
/*
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* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibJS/Runtime/Completion.h>
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#include <LibJS/Runtime/Environment.h>
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#include <LibJS/Runtime/Object.h>
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namespace JS {
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class ArgumentsObject final : public Object {
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JS_OBJECT(ArgumentsObject, Object);
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JS_DECLARE_ALLOCATOR(ArgumentsObject);
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public:
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virtual void initialize(Realm&) override;
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virtual ~ArgumentsObject() override = default;
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Environment& environment() { return m_environment; }
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virtual ThrowCompletionOr<Optional<PropertyDescriptor>> internal_get_own_property(PropertyKey const&) const override;
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virtual ThrowCompletionOr<bool> internal_define_own_property(PropertyKey const&, PropertyDescriptor const&) override;
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virtual ThrowCompletionOr<Value> internal_get(PropertyKey const&, Value receiver, CacheablePropertyMetadata*, PropertyLookupPhase) const override;
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virtual ThrowCompletionOr<bool> internal_set(PropertyKey const&, Value value, Value receiver, CacheablePropertyMetadata*) override;
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virtual ThrowCompletionOr<bool> internal_delete(PropertyKey const&) override;
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// [[ParameterMap]]
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Object& parameter_map() { return *m_parameter_map; }
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private:
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ArgumentsObject(Realm&, Environment&);
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virtual void visit_edges(Cell::Visitor&) override;
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NonnullGCPtr<Environment> m_environment;
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GCPtr<Object> m_parameter_map;
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};
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}
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