mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
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111 lines
3.7 KiB
C++
111 lines
3.7 KiB
C++
/*
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* Copyright (C) 2008-2019 Apple Inc. 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
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of Apple Inc. ("Apple") nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "SourceProvider.h"
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#include <wtf/RefPtr.h>
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namespace JSC {
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class UnlinkedSourceCode {
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template<typename SourceType>
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friend class CachedUnlinkedSourceCodeShape;
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friend class CachedSourceCodeWithoutProvider;
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public:
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UnlinkedSourceCode()
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: m_provider(nullptr)
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, m_startOffset(0)
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, m_endOffset(0)
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{
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}
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UnlinkedSourceCode(WTF::HashTableDeletedValueType)
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: m_provider(WTF::HashTableDeletedValue)
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{
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}
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UnlinkedSourceCode(Ref<SourceProvider>&& provider)
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: m_provider(WTFMove(provider))
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, m_startOffset(0)
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, m_endOffset(m_provider->source().length())
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{
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}
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UnlinkedSourceCode(Ref<SourceProvider>&& provider, int startOffset, int endOffset)
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: m_provider(WTFMove(provider))
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, m_startOffset(startOffset)
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, m_endOffset(endOffset)
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{
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}
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UnlinkedSourceCode(RefPtr<SourceProvider>&& provider, int startOffset, int endOffset)
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: m_provider(WTFMove(provider))
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, m_startOffset(startOffset)
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, m_endOffset(endOffset)
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{
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}
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bool isHashTableDeletedValue() const { return m_provider.isHashTableDeletedValue(); }
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SourceProvider& provider() const
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{
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return *m_provider;
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}
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unsigned hash() const
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{
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ASSERT(m_provider);
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return m_provider->hash();
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}
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StringView view() const
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{
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if (!m_provider)
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return StringView();
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return m_provider->getRange(m_startOffset, m_endOffset);
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}
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CString toUTF8() const;
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bool isNull() const { return !m_provider; }
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int startOffset() const { return m_startOffset; }
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int endOffset() const { return m_endOffset; }
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int length() const { return m_endOffset - m_startOffset; }
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protected:
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// FIXME: Make it Ref<SourceProvidier>.
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// https://bugs.webkit.org/show_bug.cgi?id=168325
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RefPtr<SourceProvider> m_provider;
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int m_startOffset;
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int m_endOffset;
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};
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} // namespace JSC
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