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aabd82d508
This patch adds FunctionEnvironmentRecord as a subclass of the existing DeclarativeEnvironmentRecord. Things that are specific to function environment records move into there, simplifying the base. Most of the abstract operations related to function environment records are rewritten to match the spec exactly. I also had to implement GetThisEnvironment() and GetSuperConstructor() to keep tests working after the changes, so that's nice as well. :^)
71 lines
1.9 KiB
C++
71 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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#include <LibJS/Interpreter.h>
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#include <LibJS/Runtime/DeclarativeEnvironmentRecord.h>
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#include <LibJS/Runtime/Error.h>
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#include <LibJS/Runtime/Function.h>
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#include <LibJS/Runtime/GlobalObject.h>
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#include <LibJS/Runtime/Value.h>
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namespace JS {
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DeclarativeEnvironmentRecord::DeclarativeEnvironmentRecord()
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: EnvironmentRecord(nullptr)
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{
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}
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DeclarativeEnvironmentRecord::DeclarativeEnvironmentRecord(EnvironmentRecordType environment_record_type)
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: EnvironmentRecord(nullptr)
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, m_environment_record_type(environment_record_type)
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{
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}
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DeclarativeEnvironmentRecord::DeclarativeEnvironmentRecord(EnvironmentRecord* parent_scope)
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: EnvironmentRecord(parent_scope)
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{
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}
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DeclarativeEnvironmentRecord::DeclarativeEnvironmentRecord(HashMap<FlyString, Variable> variables, EnvironmentRecord* parent_scope)
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: EnvironmentRecord(parent_scope)
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, m_variables(move(variables))
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{
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}
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DeclarativeEnvironmentRecord::DeclarativeEnvironmentRecord(HashMap<FlyString, Variable> variables, EnvironmentRecord* parent_scope, EnvironmentRecordType environment_record_type)
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: EnvironmentRecord(parent_scope)
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, m_environment_record_type(environment_record_type)
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, m_variables(move(variables))
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{
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}
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DeclarativeEnvironmentRecord::~DeclarativeEnvironmentRecord()
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{
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}
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void DeclarativeEnvironmentRecord::visit_edges(Visitor& visitor)
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{
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Base::visit_edges(visitor);
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for (auto& it : m_variables)
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visitor.visit(it.value.value);
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}
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Optional<Variable> DeclarativeEnvironmentRecord::get_from_environment_record(FlyString const& name) const
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{
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return m_variables.get(name);
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}
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void DeclarativeEnvironmentRecord::put_into_environment_record(FlyString const& name, Variable variable)
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{
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m_variables.set(name, variable);
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}
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bool DeclarativeEnvironmentRecord::delete_from_environment_record(FlyString const& name)
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{
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return m_variables.remove(name);
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}
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}
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