// 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. #include "config.h" #include "CSSVariableData.h" #include "CSSCustomPropertyValue.h" #include "CSSParserTokenRange.h" #include "CSSValuePool.h" #include "RenderStyle.h" #include <wtf/text/AtomicStringHash.h> #include <wtf/text/StringBuilder.h> #include <wtf/text/StringView.h> namespace WebCore { template<typename CharacterType> void CSSVariableData::updateTokens(const CSSParserTokenRange& range) { const CharacterType* currentOffset = m_backingString.characters<CharacterType>(); for (const CSSParserToken& token : range) { if (token.hasStringBacking()) { unsigned length = token.value().length(); StringView string(currentOffset, length); m_tokens.append(token.copyWithUpdatedString(string)); currentOffset += length; } else m_tokens.append(token); } ASSERT(currentOffset == m_backingString.characters<CharacterType>() + m_backingString.length()); } bool CSSVariableData::operator==(const CSSVariableData& other) const { return tokens() == other.tokens(); } CSSVariableData::CSSVariableData(const CSSParserTokenRange& range) { StringBuilder stringBuilder; CSSParserTokenRange localRange = range; while (!localRange.atEnd()) { CSSParserToken token = localRange.consume(); if (token.hasStringBacking()) stringBuilder.append(token.value()); } m_backingString = stringBuilder.toString(); if (m_backingString.is8Bit()) updateTokens<LChar>(range); else updateTokens<UChar>(range); } } // namespace WebCore