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// Copyright 2015 The Chromium Authors. All rights reserved.
// Copyright (C) 2016 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:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * 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.
// * Neither the name of Google Inc. 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
// OWNER 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.
#pragma once
#include "CSSParserObserver.h"
#include <wtf/Vector.h>
#include <wtf/WeakPtr.h>
namespace WebCore {
class CSSParserObserverWrapper;
}
namespace WTF {
template<typename T> struct IsDeprecatedWeakRefSmartPointerException;
template<> struct IsDeprecatedWeakRefSmartPointerException<WebCore::CSSParserObserverWrapper> : std::true_type { };
}
namespace WebCore {
class CSSParserObserverWrapper : public CanMakeWeakPtr<CSSParserObserverWrapper> {
public:
explicit CSSParserObserverWrapper(CSSParserObserver& observer)
: m_observer(observer)
{ }
unsigned startOffset(const CSSParserTokenRange&);
unsigned previousTokenStartOffset(const CSSParserTokenRange&);
unsigned endOffset(const CSSParserTokenRange&); // Includes trailing comments
void skipCommentsBefore(const CSSParserTokenRange&, bool leaveDirectlyBefore);
void yieldCommentsBefore(const CSSParserTokenRange&);
CSSParserObserver& observer() { return m_observer; }
void addComment(unsigned startOffset, unsigned endOffset, unsigned tokensBefore)
{
CommentPosition position = {startOffset, endOffset, tokensBefore};
m_commentOffsets.append(position);
}
void addToken(unsigned startOffset) { m_tokenOffsets.append(startOffset); }
void finalizeConstruction(CSSParserToken* firstParserToken)
{
m_firstParserToken = firstParserToken;
ASSERT(!m_commentIndex);
}
private:
CSSParserObserver& m_observer;
Vector<unsigned> m_tokenOffsets;
CSSParserToken* m_firstParserToken;
struct CommentPosition {
unsigned startOffset;
unsigned endOffset;
unsigned tokensBefore;
};
Vector<CommentPosition> m_commentOffsets;
size_t m_commentIndex { 0 };
};
} // namespace WebCore
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