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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
55 lines
2.6 KiB
C++
55 lines
2.6 KiB
C++
/*
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* Copyright (c) 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/Export.h>
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#include <LibJS/Runtime/Environment.h>
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namespace JS {
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class JS_API GlobalEnvironment final : public Environment {
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JS_ENVIRONMENT(GlobalEnvironment, Environment);
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GC_DECLARE_ALLOCATOR(GlobalEnvironment);
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public:
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virtual bool has_this_binding() const final { return true; }
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virtual ThrowCompletionOr<Value> get_this_binding(VM&) const final;
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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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ObjectEnvironment& object_record() { return *m_object_record; }
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Object& global_this_value() { return *m_global_this_value; }
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DeclarativeEnvironment& declarative_record() { return *m_declarative_record; }
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bool has_lexical_declaration(Utf16FlyString const& name) const;
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ThrowCompletionOr<bool> has_restricted_global_property(Utf16FlyString const& name) const;
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ThrowCompletionOr<bool> can_declare_global_var(Utf16FlyString const& name) const;
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ThrowCompletionOr<bool> can_declare_global_function(Utf16FlyString const& name) const;
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ThrowCompletionOr<void> create_global_var_binding(Utf16FlyString const& name, bool can_be_deleted);
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ThrowCompletionOr<void> create_global_function_binding(Utf16FlyString const& name, Value, bool can_be_deleted);
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private:
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GlobalEnvironment(Object&, Object& this_value);
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virtual bool is_global_environment() const override { return true; }
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virtual void visit_edges(Visitor&) override;
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GC::Ptr<ObjectEnvironment> m_object_record; // [[ObjectRecord]]
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GC::Ptr<Object> m_global_this_value; // [[GlobalThisValue]]
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GC::Ptr<DeclarativeEnvironment> m_declarative_record; // [[DeclarativeRecord]]
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};
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template<>
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inline bool Environment::fast_is<GlobalEnvironment>() const { return is_global_environment(); }
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}
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