Prepare to use invalidation set for adding/removing RuleSets.

third_party/WebKit/Source/core/css/RuleFeature.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 57 matching lines @@
     void add(const RuleFeatureSet&);
     void clear();
 
     enum SelectorPreMatch { SelectorNeverMatches, SelectorMayMatch };
 
     SelectorPreMatch collectFeaturesFromRuleData(const RuleData&);
 
     bool usesSiblingRules() const { return !siblingRules.isEmpty(); }
     bool usesFirstLineRules() const { return m_metadata.usesFirstLineRules; }
     bool usesWindowInactiveSelector() const { return m_metadata.usesWindowInactiveSelector; }
+    bool needsFullRecalcForRuleSetInvalidation() const { return m_metadata.needsFullRecalcForRuleSetInvalidation; }
 
     unsigned maxDirectAdjacentSelectors() const { return m_metadata.maxDirectAdjacentSelectors; }
 
     bool hasSelectorForAttribute(const AtomicString& attributeName) const
     {
         DCHECK(!attributeName.isEmpty());
         return m_attributeInvalidationSets.contains(attributeName);
     }
 
     bool hasSelectorForClass(const AtomicString& classValue) const
@@ skipping 39 matching lines @@
 
     struct FeatureMetadata {
         DISALLOW_NEW();
         void add(const FeatureMetadata& other);
         void clear();
 
         bool usesFirstLineRules = false;
         bool usesWindowInactiveSelector = false;
         bool foundSiblingSelector = false;
         bool foundInsertionPointCrossing = false;
+        bool needsFullRecalcForRuleSetInvalidation = false;
         unsigned maxDirectAdjacentSelectors = 0;
     };
 
     SelectorPreMatch collectFeaturesFromSelector(const CSSSelector&, FeatureMetadata&);
 
     InvalidationSet& ensureClassInvalidationSet(const AtomicString& className, InvalidationType);
     InvalidationSet& ensureAttributeInvalidationSet(const AtomicString& attributeName, InvalidationType);
     InvalidationSet& ensureIdInvalidationSet(const AtomicString& id, InvalidationType);
     InvalidationSet& ensurePseudoInvalidationSet(CSSSelector::PseudoType, InvalidationType);
     SiblingInvalidationSet& ensureUniversalSiblingInvalidationSet();
     DescendantInvalidationSet& ensureNthInvalidationSet();
 
     void updateInvalidationSets(const RuleData&);
     void updateInvalidationSetsForContentAttribute(const RuleData&);
 
     struct InvalidationSetFeatures {
         DISALLOW_NEW();
 
         void add(const InvalidationSetFeatures& other);
         bool hasFeatures() const;
+        bool hasTagIdClassOrAttribute() const;
 
         Vector<AtomicString> classes;
         Vector<AtomicString> attributes;
         Vector<AtomicString> ids;
         Vector<AtomicString> tagNames;
         unsigned maxDirectAdjacentSelectors = 0;
         bool customPseudoElement = false;
         bool hasBeforeOrAfter = false;
         bool treeBoundaryCrossing = false;
         bool insertionPointCrossing = false;
         bool forceSubtree = false;
         bool contentPseudoCrossing = false;
         bool invalidatesSlotted = false;
         bool hasNthPseudo = false;
+        bool hasFeaturesForRuleSetInvalidation = false;
     };
 
     static void extractInvalidationSetFeature(const CSSSelector&, InvalidationSetFeatures&);
 
     enum PositionType { Subject, Ancestor };
     enum FeatureInvalidationType { NormalInvalidation, RequiresSubtreeInvalidation };
 
     void extractInvalidationSetFeaturesFromSimpleSelector(const CSSSelector&, InvalidationSetFeatures&);
     const CSSSelector* extractInvalidationSetFeaturesFromCompound(const CSSSelector&, InvalidationSetFeatures&, PositionType, CSSSelector::PseudoType = CSSSelector::PseudoUnknown);
     FeatureInvalidationType extractInvalidationSetFeaturesFromSelectorList(const CSSSelector&, InvalidationSetFeatures&, PositionType);
@@ skipping 22 matching lines @@
 
     // If true, the RuleFeatureSet is alive and can be used.
     unsigned m_isAlive : 1;
 
     friend class RuleFeatureSetTest;
 };
 
 } // namespace blink
 
 #endif // RuleFeature_h