/* * Copyright (c) 2021, Andreas Kling * * SPDX-License-Identifier: BSD-2-Clause */ #pragma once #include namespace JS { class GlobalEnvironmentRecord final : public EnvironmentRecord { JS_ENVIRONMENT_RECORD(GlobalEnvironmentRecord, EnvironmentRecord); public: explicit GlobalEnvironmentRecord(GlobalObject&); virtual Optional get_from_environment_record(FlyString const&) const override; virtual void put_into_environment_record(FlyString const&, Variable) override; virtual bool delete_from_environment_record(FlyString const&) override; virtual bool has_this_binding() const final { return true; } virtual Value get_this_binding(GlobalObject&) const final; virtual bool has_binding(FlyString const& name) const override; virtual void create_mutable_binding(GlobalObject&, FlyString const& name, bool can_be_deleted) override; virtual void create_immutable_binding(GlobalObject&, FlyString const& name, bool strict) override; virtual void initialize_binding(GlobalObject&, FlyString const& name, Value) override; virtual void set_mutable_binding(GlobalObject&, FlyString const& name, Value, bool strict) override; virtual Value get_binding_value(GlobalObject&, FlyString const& name, bool strict) override; virtual bool delete_binding(GlobalObject&, FlyString const& name) override; Value global_this_value() const; // [[ObjectRecord]] ObjectEnvironmentRecord& object_record() { return *m_object_record; } // [[DeclarativeRecord]] DeclarativeEnvironmentRecord& declarative_record() { return *m_declarative_record; } bool has_var_declaration(FlyString const& name) const; bool has_lexical_declaration(FlyString const& name) const; bool has_restricted_global_property(FlyString const& name) const; bool can_declare_global_var(FlyString const& name) const; bool can_declare_global_function(FlyString const& name) const; void create_global_var_binding(FlyString const& name, bool can_be_deleted); void create_global_function_binding(FlyString const& name, Value, bool can_be_deleted); private: virtual bool is_global_environment_record() const override { return true; } virtual void visit_edges(Visitor&) override; GlobalObject& m_global_object; ObjectEnvironmentRecord* m_object_record { nullptr }; DeclarativeEnvironmentRecord* m_declarative_record { nullptr }; Vector m_var_names; }; template<> inline bool EnvironmentRecord::fast_is() const { return is_global_environment_record(); } }