102 lines
3.6 KiB
C++
102 lines
3.6 KiB
C++
/*
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* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
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* Copyright (C) 2003-2019 Apple Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#pragma once
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#include "SelectorFilter.h"
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#include "StyleRule.h"
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namespace WebCore {
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namespace Style {
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enum PropertyAllowlistType {
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PropertyAllowlistNone = 0,
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PropertyAllowlistMarker,
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#if ENABLE(VIDEO)
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PropertyAllowlistCue
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#endif
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};
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enum class MatchBasedOnRuleHash : unsigned {
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None,
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Universal,
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ClassA,
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ClassB,
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ClassC
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};
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class RuleData {
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public:
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static const unsigned maximumSelectorComponentCount = 8192;
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RuleData(const StyleRule&, unsigned selectorIndex, unsigned selectorListIndex, unsigned position);
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unsigned position() const { return m_position; }
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const StyleRule& styleRule() const { return *m_styleRule; }
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const CSSSelector* selector() const { return m_styleRule->selectorList().selectorAt(m_selectorIndex); }
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#if ENABLE(CSS_SELECTOR_JIT)
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CompiledSelector& compiledSelector() const { return m_styleRule->compiledSelectorForListIndex(m_selectorListIndex); }
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#endif
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unsigned selectorIndex() const { return m_selectorIndex; }
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unsigned selectorListIndex() const { return m_selectorListIndex; }
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bool canMatchPseudoElement() const { return m_canMatchPseudoElement; }
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MatchBasedOnRuleHash matchBasedOnRuleHash() const { return static_cast<MatchBasedOnRuleHash>(m_matchBasedOnRuleHash); }
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bool containsUncommonAttributeSelector() const { return m_containsUncommonAttributeSelector; }
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unsigned linkMatchType() const { return m_linkMatchType; }
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PropertyAllowlistType propertyAllowlistType() const { return static_cast<PropertyAllowlistType>(m_propertyAllowlistType); }
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bool isEnabled() const { return m_isEnabled; }
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void setEnabled(bool value) { m_isEnabled = value; }
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const SelectorFilter::Hashes& descendantSelectorIdentifierHashes() const { return m_descendantSelectorIdentifierHashes; }
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void disableSelectorFiltering() { m_descendantSelectorIdentifierHashes[0] = 0; }
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private:
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RefPtr<const StyleRule> m_styleRule;
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// Keep in sync with RuleFeature's selectorIndex and selectorListIndex size.
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unsigned m_selectorIndex : 16;
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unsigned m_selectorListIndex : 16;
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// If we have more rules than 2^bitcount here we'll get confused about rule order.
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unsigned m_position : 22;
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unsigned m_matchBasedOnRuleHash : 3;
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unsigned m_canMatchPseudoElement : 1;
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unsigned m_containsUncommonAttributeSelector : 1;
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unsigned m_linkMatchType : 2; // SelectorChecker::LinkMatchMask
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unsigned m_propertyAllowlistType : 2;
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unsigned m_isEnabled : 1;
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SelectorFilter::Hashes m_descendantSelectorIdentifierHashes;
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};
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} // namespace Style
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} // namespace WebCore
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namespace WTF {
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// RuleData is simple enough that initializing to 0 and moving with memcpy will totally work.
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template<> struct VectorTraits<WebCore::Style::RuleData> : SimpleClassVectorTraits { };
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} // namespace WTF
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