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/*
* Copyright (C) 2015 Apple Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "VariableEnvironment.h"
#include <wtf/text/UniquedStringImpl.h>
namespace JSC {
void VariableEnvironment::markVariableAsCapturedIfDefined(const RefPtr<UniquedStringImpl>& identifier)
{
auto findResult = m_map.find(identifier);
if (findResult != m_map.end())
findResult->value.setIsCaptured();
}
void VariableEnvironment::markVariableAsCaptured(const RefPtr<UniquedStringImpl>& identifier)
{
auto findResult = m_map.find(identifier);
RELEASE_ASSERT(findResult != m_map.end());
findResult->value.setIsCaptured();
}
void VariableEnvironment::markAllVariablesAsCaptured()
{
if (m_isEverythingCaptured)
return;
m_isEverythingCaptured = true; // For fast queries.
// We must mark every entry as captured for when we iterate through m_map and entry.isCaptured() is called.
for (auto& value : m_map.values())
value.setIsCaptured();
}
bool VariableEnvironment::hasCapturedVariables() const
{
if (m_isEverythingCaptured)
return size() > 0;
for (auto& value : m_map.values()) {
if (value.isCaptured())
return true;
}
return false;
}
bool VariableEnvironment::captures(UniquedStringImpl* identifier) const
{
if (m_isEverythingCaptured)
return true;
auto findResult = m_map.find(identifier);
if (findResult == m_map.end())
return false;
return findResult->value.isCaptured();
}
void VariableEnvironment::swap(VariableEnvironment& other)
{
m_map.swap(other.m_map);
m_isEverythingCaptured = other.m_isEverythingCaptured;
}
void VariableEnvironment::markVariableAsImported(const RefPtr<UniquedStringImpl>& identifier)
{
auto findResult = m_map.find(identifier);
RELEASE_ASSERT(findResult != m_map.end());
findResult->value.setIsImported();
}
void VariableEnvironment::markVariableAsExported(const RefPtr<UniquedStringImpl>& identifier)
{
auto findResult = m_map.find(identifier);
RELEASE_ASSERT(findResult != m_map.end());
findResult->value.setIsExported();
}
} // namespace JSC
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