f4f1397735
This does require us to have a method which lists all the bindings in a declarative environment which is not in the spec.
57 lines
1.9 KiB
C++
57 lines
1.9 KiB
C++
/*
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* Copyright (c) 2020-2021, 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 <AK/FlyString.h>
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#include <AK/HashMap.h>
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#include <LibJS/Runtime/Environment.h>
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#include <LibJS/Runtime/Value.h>
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namespace JS {
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class DeclarativeEnvironment : public Environment {
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JS_ENVIRONMENT(DeclarativeEnvironment, Environment);
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public:
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DeclarativeEnvironment();
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explicit DeclarativeEnvironment(Environment* parent_scope);
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virtual ~DeclarativeEnvironment() override;
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virtual bool has_binding(FlyString const& name) const override;
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virtual void create_mutable_binding(GlobalObject&, FlyString const& name, bool can_be_deleted) override;
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virtual void create_immutable_binding(GlobalObject&, FlyString const& name, bool strict) override;
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virtual void initialize_binding(GlobalObject&, FlyString const& name, Value) override;
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virtual void set_mutable_binding(GlobalObject&, FlyString const& name, Value, bool strict) override;
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virtual Value get_binding_value(GlobalObject&, FlyString const& name, bool strict) override;
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virtual bool delete_binding(GlobalObject&, FlyString const& name) override;
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void initialize_or_set_mutable_binding(Badge<ScopeNode>, GlobalObject& global_object, FlyString const& name, Value value);
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// This is not a method defined in the spec! Do not use this in any LibJS (or other spec related) code.
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[[nodiscard]] Vector<String> bindings() const;
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protected:
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virtual void visit_edges(Visitor&) override;
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private:
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virtual bool is_declarative_environment() const override { return true; }
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struct Binding {
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Value value;
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bool strict { false };
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bool mutable_ { false };
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bool can_be_deleted { false };
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bool initialized { false };
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};
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HashMap<FlyString, Binding> m_bindings;
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};
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template<>
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inline bool Environment::fast_is<DeclarativeEnvironment>() const { return is_declarative_environment(); }
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}
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