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/*
* Copyright (C) 2012 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. AND ITS CONTRIBUTORS ``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 ITS 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.
*/
#pragma once
#include "Identifier.h"
#include "PrivateName.h"
#include <wtf/Optional.h>
namespace JSC {
class PropertyName {
public:
PropertyName(UniquedStringImpl* propertyName)
: m_impl(propertyName)
{
}
PropertyName(const Identifier& propertyName)
: PropertyName(propertyName.impl())
{
}
PropertyName(const PrivateName& propertyName)
: m_impl(&propertyName.uid())
{
ASSERT(m_impl);
ASSERT(m_impl->isSymbol());
}
bool isNull() const { return !m_impl; }
bool isSymbol()
{
return m_impl && m_impl->isSymbol();
}
UniquedStringImpl* uid() const
{
return m_impl;
}
AtomicStringImpl* publicName() const
{
return (!m_impl || m_impl->isSymbol()) ? nullptr : static_cast<AtomicStringImpl*>(m_impl);
}
void dump(PrintStream& out) const
{
if (m_impl)
out.print(m_impl);
else
out.print("<null property name>");
}
private:
UniquedStringImpl* m_impl;
};
inline bool operator==(PropertyName a, const Identifier& b)
{
return a.uid() == b.impl();
}
inline bool operator==(const Identifier& a, PropertyName b)
{
return a.impl() == b.uid();
}
inline bool operator==(PropertyName a, PropertyName b)
{
return a.uid() == b.uid();
}
inline bool operator==(PropertyName a, const char* b)
{
return equal(a.uid(), b);
}
inline bool operator!=(PropertyName a, const Identifier& b)
{
return a.uid() != b.impl();
}
inline bool operator!=(const Identifier& a, PropertyName b)
{
return a.impl() != b.uid();
}
inline bool operator!=(PropertyName a, PropertyName b)
{
return a.uid() != b.uid();
}
ALWAYS_INLINE std::optional<uint32_t> parseIndex(PropertyName propertyName)
{
auto uid = propertyName.uid();
if (!uid)
return std::nullopt;
if (uid->isSymbol())
return std::nullopt;
return parseIndex(*uid);
}
} // namespace JSC
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