Schedule a type selector invalidation set for RuleSet invalidations.

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
@@ skipping 449 matching lines @@
   else if (!features.hasFeatures())
     features.forceSubtree = true;
   if (features.hasNthPseudo)
     addFeaturesToInvalidationSet(ensureNthInvalidationSet(), features);
   if (features.hasBeforeOrAfter)
     updateInvalidationSetsForContentAttribute(ruleData);
 
   const CSSSelector* nextCompound =
       lastInCompound ? lastInCompound->tagHistory() : &ruleData.selector();
   if (!nextCompound) {
-    if (!features.hasFeaturesForRuleSetInvalidation)
-      m_metadata.needsFullRecalcForRuleSetInvalidation = true;
+    updateRuleSetInvalidation(features);
     return;
   }
   if (lastInCompound)
     updateFeaturesFromCombinator(*lastInCompound, nullptr, features,
                                  siblingFeatures, features);
 
   addFeaturesToInvalidationSets(*nextCompound, siblingFeatures, features);
+  updateRuleSetInvalidation(features);
+}
 
-  if (!features.hasFeaturesForRuleSetInvalidation)
-    m_metadata.needsFullRecalcForRuleSetInvalidation = true;
+void RuleFeatureSet::updateRuleSetInvalidation(
+    const InvalidationSetFeatures& features) {
+  if (!features.hasFeaturesForRuleSetInvalidation) {
+    if (features.forceSubtree || features.tagNames.isEmpty())
+      m_metadata.needsFullRecalcForRuleSetInvalidation = true;
+    else
+      addTagNamesToTypeRuleInvalidationSet(features.tagNames);
+  }
 }
 
 void RuleFeatureSet::updateInvalidationSetsForContentAttribute(
     const RuleData& ruleData) {
   // If any ::before and ::after rules specify 'content: attr(...)', we
   // need to create invalidation sets for those attributes to have content
   // changes applied through style recalc.
 
   const StylePropertySet& propertySet = ruleData.rule()->properties();
 
@@ skipping 109 matching lines @@
     if (extractInvalidationSetFeaturesFromSelectorList(*simpleSelector,
                                                        features, position) ==
         RequiresSubtreeInvalidation) {
       DCHECK(features.forceSubtree);
       return nullptr;
     }
 
     if (!simpleSelector->tagHistory() ||
         simpleSelector->relation() != CSSSelector::SubSelector) {
       features.hasFeaturesForRuleSetInvalidation =
-          features.hasTagIdClassOrAttribute();
+          features.hasIdClassOrAttribute();
       return simpleSelector;
     }
   }
 }
 
 // Add features extracted from the rightmost compound selector to descendant
 // invalidation sets for features found in other compound selectors.
 //
 // We use descendant invalidation for descendants, sibling invalidation for
 // siblings and their subtrees.
@@ skipping 531 matching lines @@
   universalSet.updateMaxDirectAdjacentSelectors(
       siblingFeatures.maxDirectAdjacentSelectors);
 
   if (&siblingFeatures == &descendantFeatures)
     universalSet.setInvalidatesSelf();
   else
     addFeaturesToInvalidationSet(universalSet.ensureSiblingDescendants(),
                                  descendantFeatures);
 }
 
+void RuleFeatureSet::addTagNamesToTypeRuleInvalidationSet(
+    const Vector<AtomicString>& tagNames) {
+  DCHECK(!tagNames.isEmpty());
+  ensureTypeRuleInvalidationSet();
+  for (auto tagName : tagNames)
+    m_typeRuleInvalidationSet->addTagName(tagName);
+}
+
 DEFINE_TRACE(RuleFeatureSet) {
   visitor->trace(m_siblingRules);
   visitor->trace(m_uncommonAttributeRules);
   visitor->trace(m_viewportDependentMediaQueryResults);
   visitor->trace(m_deviceDependentMediaQueryResults);
 }
 
 void RuleFeatureSet::InvalidationSetFeatures::add(
     const InvalidationSetFeatures& other) {
   classes.appendVector(other.classes);
@@ skipping 10 matching lines @@
   contentPseudoCrossing |= other.contentPseudoCrossing;
   invalidatesSlotted |= other.invalidatesSlotted;
   hasNthPseudo |= other.hasNthPseudo;
 }
 
 bool RuleFeatureSet::InvalidationSetFeatures::hasFeatures() const {
   return !classes.isEmpty() || !attributes.isEmpty() || !ids.isEmpty() ||
          !tagNames.isEmpty() || customPseudoElement;
 }
 
-bool RuleFeatureSet::InvalidationSetFeatures::hasTagIdClassOrAttribute() const {
-  return !classes.isEmpty() || !attributes.isEmpty() || !ids.isEmpty() ||
-         !tagNames.isEmpty();
+bool RuleFeatureSet::InvalidationSetFeatures::hasIdClassOrAttribute() const {
+  return !classes.isEmpty() || !attributes.isEmpty() || !ids.isEmpty();
 }
 
 }  // namespace blink