xpath_step.cc | Explore in Territory

/*
 * Copyright (C) 2005 Frerich Raabe <[email protected]>
 * Copyright (C) 2006, 2009 Apple Inc. All rights reserved.
 * Copyright (C) 2007 Alexey Proskuryakov <[email protected]>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "third_party/blink/renderer/core/xml/xpath_step.h"

#include "third_party/blink/renderer/core/dom/attr.h"
#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/dom/element.h"
#include "third_party/blink/renderer/core/dom/node_traversal.h"
#include "third_party/blink/renderer/core/html/html_document.h"
#include "third_party/blink/renderer/core/xml/xpath_parser.h"
#include "third_party/blink/renderer/core/xml/xpath_util.h"
#include "third_party/blink/renderer/core/xmlns_names.h"

namespace blink {
namespace xpath {

Step::Step(Axis axis, const NodeTest& node_test)
    : … { … }

Step::Step(Axis axis,
           const NodeTest& node_test,
           HeapVector<Member<Predicate>>& predicates)
    : … { … }

Step::~Step() = default;

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

void Step::Optimize() { … }

bool OptimizeStepPair(Step* first, Step* second) { … }

bool Step::PredicatesAreContextListInsensitive() const { … }

void Step::Evaluate(EvaluationContext& evaluation_context,
                    Node* context,
                    NodeSet& nodes) const { … }

#if DCHECK_IS_ON()
static inline Node::NodeType PrimaryNodeType(Step::Axis axis) { … }
#endif

// Evaluate NodeTest without considering merged predicates.
static inline bool NodeMatchesBasicTest(Node* node,
                                        Step::Axis axis,
                                        const Step::NodeTest& node_test) { … }

static inline bool NodeMatches(EvaluationContext& evaluation_context,
                               Node* node,
                               Step::Axis axis,
                               const Step::NodeTest& node_test) { … }

// Result nodes are ordered in axis order. Node test (including merged
// predicates) is applied.
void Step::NodesInAxis(EvaluationContext& evaluation_context,
                       Node* context,
                       NodeSet& nodes) const { … }

}  // namespace xpath

}  // namespace blink
chromium/third_party/blink/renderer/core/xml/xpath_step.cc
