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Side by Side Diff: Source/core/css/SelectorChecker.h

Issue 18147020: Remove broken sibling selector optimization (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Created 7 years, 5 months ago
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1 /* 1 /*
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 * (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com) 3 * (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
4 * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com) 4 * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
5 * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All rights reserved. 5 * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All rights reserved.
6 * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org> 6 * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
7 * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org> 7 * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
8 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.t orchmobile.com/) 8 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.t orchmobile.com/)
9 * Copyright (c) 2011, Code Aurora Forum. All rights reserved. 9 * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
10 * Copyright (C) Research In Motion Limited 2011. All rights reserved. 10 * Copyright (C) Research In Motion Limited 2011. All rights reserved.
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48 enum BehaviorAtBoundary { 48 enum BehaviorAtBoundary {
49 DoesNotCrossBoundary = 0, 49 DoesNotCrossBoundary = 0,
50 CrossesBoundary = 1, 50 CrossesBoundary = 1,
51 StaysWithinTreeScope = 2, 51 StaysWithinTreeScope = 2,
52 BoundaryBehaviorMask = 3, // 2bit for boundary behavior 52 BoundaryBehaviorMask = 3, // 2bit for boundary behavior
53 ScopeContainsLastMatchedElement = 4, 53 ScopeContainsLastMatchedElement = 4,
54 }; 54 };
55 55
56 struct SelectorCheckingContext { 56 struct SelectorCheckingContext {
57 // Initial selector constructor 57 // Initial selector constructor
58 SelectorCheckingContext(const CSSSelector* selector, Element* element, V isitedMatchType visitedMatchType, int childIndex = 0) 58 SelectorCheckingContext(const CSSSelector* selector, Element* element, V isitedMatchType visitedMatchType)
59 : selector(selector) 59 : selector(selector)
60 , element(element) 60 , element(element)
61 , scope(0) 61 , scope(0)
62 , visitedMatchType(visitedMatchType) 62 , visitedMatchType(visitedMatchType)
63 , pseudoId(NOPSEUDO) 63 , pseudoId(NOPSEUDO)
64 , elementStyle(0) 64 , elementStyle(0)
65 , scrollbar(0) 65 , scrollbar(0)
66 , scrollbarPart(NoPart) 66 , scrollbarPart(NoPart)
67 , isSubSelector(false) 67 , isSubSelector(false)
68 , hasScrollbarPseudo(false) 68 , hasScrollbarPseudo(false)
69 , hasSelectionPseudo(false) 69 , hasSelectionPseudo(false)
70 , behaviorAtBoundary(DoesNotCrossBoundary) 70 , behaviorAtBoundary(DoesNotCrossBoundary)
71 , childIndex(childIndex)
72 { } 71 { }
73 72
74 const CSSSelector* selector; 73 const CSSSelector* selector;
75 Element* element; 74 Element* element;
76 const ContainerNode* scope; 75 const ContainerNode* scope;
77 VisitedMatchType visitedMatchType; 76 VisitedMatchType visitedMatchType;
78 PseudoId pseudoId; 77 PseudoId pseudoId;
79 RenderStyle* elementStyle; 78 RenderStyle* elementStyle;
80 RenderScrollbar* scrollbar; 79 RenderScrollbar* scrollbar;
81 ScrollbarPart scrollbarPart; 80 ScrollbarPart scrollbarPart;
82 bool isSubSelector; 81 bool isSubSelector;
83 bool hasScrollbarPseudo; 82 bool hasScrollbarPseudo;
84 bool hasSelectionPseudo; 83 bool hasSelectionPseudo;
85 BehaviorAtBoundary behaviorAtBoundary; 84 BehaviorAtBoundary behaviorAtBoundary;
86 int childIndex;
87 }; 85 };
88 86
89 template<typename SiblingTraversalStrategy> 87 template<typename SiblingTraversalStrategy>
90 Match match(const SelectorCheckingContext&, PseudoId&, const SiblingTraversa lStrategy&) const; 88 Match match(const SelectorCheckingContext&, PseudoId&, const SiblingTraversa lStrategy&) const;
91 89
92 template<typename SiblingTraversalStrategy> 90 template<typename SiblingTraversalStrategy>
93 Match matchForShadowDistributed(const Element*, const SiblingTraversalStrate gy&, PseudoId&, SelectorCheckingContext& nextContext) const; 91 Match matchForShadowDistributed(const Element*, const SiblingTraversalStrate gy&, PseudoId&, SelectorCheckingContext& nextContext) const;
94 92
95 template<typename SiblingTraversalStrategy> 93 template<typename SiblingTraversalStrategy>
96 bool checkOne(const SelectorCheckingContext&, const SiblingTraversalStrategy &) const; 94 bool checkOne(const SelectorCheckingContext&, const SiblingTraversalStrategy &) const;
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148 const Attribute* attribute = element->attributeItem(i); 146 const Attribute* attribute = element->attributeItem(i);
149 if (attribute->matches(selectorAttributeName) && (!value || attribute->v alue().impl() == value)) 147 if (attribute->matches(selectorAttributeName) && (!value || attribute->v alue().impl() == value))
150 return true; 148 return true;
151 } 149 }
152 return false; 150 return false;
153 } 151 }
154 152
155 } 153 }
156 154
157 #endif 155 #endif
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