83 lines
3.1 KiB
C++
83 lines
3.1 KiB
C++
// Copyright 2015 The Chromium Authors. All rights reserved.
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// Copyright (C) 2016 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 are
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// met:
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//
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// * 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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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// 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
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include "config.h"
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#include "CSSVariableData.h"
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#include "CSSCustomPropertyValue.h"
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#include "CSSParserTokenRange.h"
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#include "CSSValuePool.h"
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#include "RenderStyle.h"
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#include <wtf/text/AtomStringHash.h>
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#include <wtf/text/StringBuilder.h>
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#include <wtf/text/StringView.h>
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namespace WebCore {
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template<typename CharacterType> void CSSVariableData::updateTokens(const CSSParserTokenRange& range)
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{
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const CharacterType* currentOffset = m_backingString.characters<CharacterType>();
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for (const CSSParserToken& token : range) {
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if (token.hasStringBacking()) {
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unsigned length = token.value().length();
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StringView string(currentOffset, length);
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m_tokens.append(token.copyWithUpdatedString(string));
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currentOffset += length;
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} else
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m_tokens.append(token);
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}
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ASSERT(currentOffset == m_backingString.characters<CharacterType>() + m_backingString.length());
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}
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bool CSSVariableData::operator==(const CSSVariableData& other) const
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{
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return tokens() == other.tokens();
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}
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CSSVariableData::CSSVariableData(const CSSParserTokenRange& range)
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{
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StringBuilder stringBuilder;
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CSSParserTokenRange localRange = range;
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while (!localRange.atEnd()) {
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CSSParserToken token = localRange.consume();
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if (token.hasStringBacking())
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stringBuilder.append(token.value());
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}
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m_backingString = stringBuilder.toString();
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if (m_backingString.is8Bit())
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updateTokens<LChar>(range);
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else
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updateTokens<UChar>(range);
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m_tokens.shrinkToFit();
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}
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} // namespace WebCore
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