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1b391d78ae
This simplifies the cell visiting functions by letting them not worry about the pointers they pass to the visitor being null.
63 lines
2.1 KiB
C++
63 lines
2.1 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <LibJS/Runtime/LexicalEnvironment.h>
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namespace JS {
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LexicalEnvironment::LexicalEnvironment()
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{
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}
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LexicalEnvironment::LexicalEnvironment(HashMap<FlyString, Variable> variables, LexicalEnvironment* parent)
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: m_parent(parent)
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, m_variables(move(variables))
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{
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}
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LexicalEnvironment::~LexicalEnvironment()
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{
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}
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void LexicalEnvironment::visit_children(Visitor& visitor)
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{
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Cell::visit_children(visitor);
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visitor.visit(m_parent);
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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> LexicalEnvironment::get(const FlyString& name) const
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{
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return m_variables.get(name);
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}
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void LexicalEnvironment::set(const FlyString& name, Variable variable)
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{
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m_variables.set(name, variable);
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}
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}
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