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/*
* Copyright (C) 2008-2019 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.
* 3. Neither the name of Apple Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE 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 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 "SourceProvider.h"
#include <wtf/RefPtr.h>
namespace JSC {
class UnlinkedSourceCode {
template<typename SourceType>
friend class CachedUnlinkedSourceCodeShape;
friend class CachedSourceCodeWithoutProvider;
public:
UnlinkedSourceCode()
: m_provider(nullptr)
, m_startOffset(0)
, m_endOffset(0)
{
}
UnlinkedSourceCode(WTF::HashTableDeletedValueType)
: m_provider(WTF::HashTableDeletedValue)
{
}
UnlinkedSourceCode(Ref<SourceProvider>&& provider)
: m_provider(WTFMove(provider))
, m_startOffset(0)
, m_endOffset(m_provider->source().length())
{
}
UnlinkedSourceCode(Ref<SourceProvider>&& provider, int startOffset, int endOffset)
: m_provider(WTFMove(provider))
, m_startOffset(startOffset)
, m_endOffset(endOffset)
{
}
UnlinkedSourceCode(RefPtr<SourceProvider>&& provider, int startOffset, int endOffset)
: m_provider(WTFMove(provider))
, m_startOffset(startOffset)
, m_endOffset(endOffset)
{
}
bool isHashTableDeletedValue() const { return m_provider.isHashTableDeletedValue(); }
SourceProvider& provider() const
{
return *m_provider;
}
unsigned hash() const
{
ASSERT(m_provider);
return m_provider->hash();
}
StringView view() const
{
if (!m_provider)
return StringView();
return m_provider->getRange(m_startOffset, m_endOffset);
}
CString toUTF8() const;
bool isNull() const { return !m_provider; }
int startOffset() const { return m_startOffset; }
int endOffset() const { return m_endOffset; }
int length() const { return m_endOffset - m_startOffset; }
friend bool operator==(const UnlinkedSourceCode&, const UnlinkedSourceCode&) = default;
protected:
// FIXME: Make it Ref<SourceProvidier>.
// https://bugs.webkit.org/show_bug.cgi?id=168325
RefPtr<SourceProvider> m_provider;
int m_startOffset;
int m_endOffset;
};
} // namespace JSC
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