mirror of
https://github.com/RGBCube/serenity
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d407f247b7
This patch makes the following renames: - get_from_scope() => get_from_environment_record() - put_to_scope() => put_into_environment_record() - delete_from_scope() => delete_from_environment_record()
83 lines
2.9 KiB
C++
83 lines
2.9 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/EnvironmentRecord.h>
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#include <LibJS/Runtime/Value.h>
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namespace JS {
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class DeclarativeEnvironmentRecord final : public EnvironmentRecord {
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JS_OBJECT(DeclarativeEnvironmentRecord, EnvironmentRecord);
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public:
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enum class ThisBindingStatus {
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Lexical,
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Initialized,
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Uninitialized,
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};
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enum class EnvironmentRecordType {
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Declarative,
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Function,
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Object,
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Module,
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};
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DeclarativeEnvironmentRecord();
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DeclarativeEnvironmentRecord(EnvironmentRecordType);
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DeclarativeEnvironmentRecord(HashMap<FlyString, Variable> variables, EnvironmentRecord* parent_scope);
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DeclarativeEnvironmentRecord(HashMap<FlyString, Variable> variables, EnvironmentRecord* parent_scope, EnvironmentRecordType);
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virtual ~DeclarativeEnvironmentRecord() override;
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// ^EnvironmentRecord
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virtual Optional<Variable> get_from_environment_record(FlyString const&) const override;
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virtual void put_into_environment_record(FlyString const&, Variable) override;
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virtual bool delete_from_environment_record(FlyString const&) override;
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virtual bool has_this_binding() const override;
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virtual Value get_this_binding(GlobalObject&) const override;
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HashMap<FlyString, Variable> const& variables() const { return m_variables; }
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void set_home_object(Value object) { m_home_object = object; }
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bool has_super_binding() const;
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Value get_super_base();
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ThisBindingStatus this_binding_status() const { return m_this_binding_status; }
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void bind_this_value(GlobalObject&, Value this_value);
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// Not a standard operation.
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void replace_this_binding(Value this_value) { m_this_value = this_value; }
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Value new_target() const { return m_new_target; };
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void set_new_target(Value new_target) { m_new_target = new_target; }
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Function* current_function() const { return m_current_function; }
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void set_current_function(Function& function) { m_current_function = &function; }
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EnvironmentRecordType type() const { return m_environment_record_type; }
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private:
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virtual bool is_declarative_environment_record() const override { return true; }
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virtual void visit_edges(Visitor&) override;
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EnvironmentRecordType m_environment_record_type : 8 { EnvironmentRecordType::Declarative };
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ThisBindingStatus m_this_binding_status : 8 { ThisBindingStatus::Uninitialized };
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HashMap<FlyString, Variable> m_variables;
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Value m_home_object;
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Value m_this_value;
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Value m_new_target;
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// Corresponds to [[FunctionObject]]
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Function* m_current_function { nullptr };
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};
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template<>
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inline bool Object::fast_is<DeclarativeEnvironmentRecord>() const { return is_declarative_environment_record(); }
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}
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