chromium/third_party/blink/renderer/core/css/selector_filter.cc

/*
 * Copyright (C) 1999 Lars Knoll ([email protected])
 *           (C) 2004-2005 Allan Sandfeld Jensen ([email protected])
 * Copyright (C) 2006, 2007 Nicholas Shanks ([email protected])
 * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights
 * reserved.
 * Copyright (C) 2007 Alexey Proskuryakov <[email protected]>
 * Copyright (C) 2007, 2008 Eric Seidel <[email protected]>
 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
 * (http://www.torchmobile.com/)
 * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
 * Copyright (C) Research In Motion Limited 2011. All rights reserved.
 * Copyright (C) 2012 Google 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,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public License
 * along with this library; see the file COPYING.LIB.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 */

#include "third_party/blink/renderer/core/css/selector_filter.h"

#include "third_party/blink/renderer/core/css/css_selector.h"
#include "third_party/blink/renderer/core/css/style_rule.h"
#include "third_party/blink/renderer/core/css/style_scope.h"
#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/dom/flat_tree_traversal.h"

namespace blink {

namespace {

// Salt to separate otherwise identical string hashes so a class-selector like
// .article won't match <article> elements.
enum { … };

inline bool IsExcludedAttribute(const AtomicString& name) { … }

template <class Func>
inline void CollectElementIdentifierHashes(const Element& element,
                                           Func&& func) { … }

void CollectDescendantCompoundSelectorIdentifierHashes(
    const CSSSelector* selector,
    CSSSelector::RelationType relation,
    const StyleScope* style_scope,
    Vector<unsigned>& hashes);

inline void CollectDescendantSelectorIdentifierHashes(
    const CSSSelector& selector,
    const StyleScope* style_scope,
    Vector<unsigned>& hashes) { … }

void CollectDescendantCompoundSelectorIdentifierHashes(
    const CSSSelector* selector,
    CSSSelector::RelationType relation,
    const StyleScope* style_scope,
    Vector<unsigned>& hashes) { … }

}  // namespace

void SelectorFilter::PushParentStackFrame(Element& parent) { … }

void SelectorFilter::PopParentStackFrame() { … }

void SelectorFilter::PushAllParentsOf(TreeScope& tree_scope) { … }

void SelectorFilter::PushAncestors(const Node& node) { … }

void SelectorFilter::PushParent(Element& parent) { … }

void SelectorFilter::PopParent(Element& parent) { … }

void SelectorFilter::CollectIdentifierHashes(
    const CSSSelector& selector,
    const StyleScope* style_scope,
    Vector<unsigned>& bloom_hash_backing) { … }

void SelectorFilter::Trace(Visitor* visitor) const { … }

}  // namespace blink