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https://github.com/LadybirdBrowser/ladybird.git
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0efa98a57a
This has quite a lot of fall out. But the majority of it is just type or UDL substitution, where the changes just fall through to other function calls. By changing property key storage to UTF-16, the main affected areas are: * NativeFunction names must now be UTF-16 * Bytecode identifiers must now be UTF-16 * Module/binding names must now be UTF-16
54 lines
2 KiB
C++
54 lines
2 KiB
C++
/*
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* Copyright (c) 2020-2021, Andreas Kling <andreas@ladybird.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/Environment.h>
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namespace JS {
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class ObjectEnvironment final : public Environment {
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JS_ENVIRONMENT(ObjectEnvironment, Environment);
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GC_DECLARE_ALLOCATOR(ObjectEnvironment);
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public:
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enum class IsWithEnvironment {
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No,
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Yes,
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};
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virtual ThrowCompletionOr<bool> has_binding(Utf16FlyString const& name, Optional<size_t>* = nullptr) const override;
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virtual ThrowCompletionOr<void> create_mutable_binding(VM&, Utf16FlyString const& name, bool can_be_deleted) override;
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virtual ThrowCompletionOr<void> create_immutable_binding(VM&, Utf16FlyString const& name, bool strict) override;
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virtual ThrowCompletionOr<void> initialize_binding(VM&, Utf16FlyString const& name, Value, Environment::InitializeBindingHint) override;
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virtual ThrowCompletionOr<void> set_mutable_binding(VM&, Utf16FlyString const& name, Value, bool strict) override;
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virtual ThrowCompletionOr<Value> get_binding_value(VM&, Utf16FlyString const& name, bool strict) override;
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virtual ThrowCompletionOr<bool> delete_binding(VM&, Utf16FlyString const& name) override;
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// 9.1.1.2.10 WithBaseObject ( ), https://tc39.es/ecma262/#sec-object-environment-records-withbaseobject
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virtual Object* with_base_object() const override
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{
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if (is_with_environment())
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return m_binding_object;
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return nullptr;
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}
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// [[BindingObject]], The binding object of this Environment Record.
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Object& binding_object() { return m_binding_object; }
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// [[IsWithEnvironment]], Indicates whether this Environment Record is created for a with statement.
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bool is_with_environment() const { return m_with_environment; }
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private:
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ObjectEnvironment(Object& binding_object, IsWithEnvironment, Environment* outer_environment);
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virtual void visit_edges(Visitor&) override;
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GC::Ref<Object> m_binding_object;
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bool m_with_environment { false };
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};
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}
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