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aabd82d508
This patch adds FunctionEnvironmentRecord as a subclass of the existing DeclarativeEnvironmentRecord. Things that are specific to function environment records move into there, simplifying the base. Most of the abstract operations related to function environment records are rewritten to match the spec exactly. I also had to implement GetThisEnvironment() and GetSuperConstructor() to keep tests working after the changes, so that's nice as well. :^)
47 lines
1.3 KiB
C++
47 lines
1.3 KiB
C++
/*
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* Copyright (c) 2020, 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 <AK/Function.h>
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#include <LibJS/Runtime/Function.h>
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namespace JS {
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class NativeFunction : public Function {
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JS_OBJECT(NativeFunction, Function);
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public:
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static NativeFunction* create(GlobalObject&, const FlyString& name, AK::Function<Value(VM&, GlobalObject&)>);
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explicit NativeFunction(PropertyName const& name, AK::Function<Value(VM&, GlobalObject&)>, Object& prototype);
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virtual void initialize(GlobalObject&) override { }
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virtual ~NativeFunction() override;
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virtual Value call() override;
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virtual Value construct(Function& new_target) override;
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virtual const FlyString& name() const override { return m_name; };
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virtual bool has_constructor() const { return false; }
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virtual bool is_strict_mode() const override;
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protected:
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NativeFunction(PropertyName const& name, Object& prototype);
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explicit NativeFunction(Object& prototype);
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private:
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virtual FunctionEnvironmentRecord* create_environment_record() override final;
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virtual bool is_native_function() const final { return true; }
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FlyString m_name;
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AK::Function<Value(VM&, GlobalObject&)> m_native_function;
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};
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template<>
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inline bool Object::fast_is<NativeFunction>() const { return is_native_function(); }
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}
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