KHtml

variablereference.cpp
1 /*
2  * variablereference.cc - Copyright 2005 Frerich Raabe <[email protected]>
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright
9  * notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  * notice, this list of conditions and the following disclaimer in the
12  * documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25 #include "variablereference.h"
26 #include <dom_stringimpl.h>
27 using namespace khtml;
28 using namespace khtml::XPath;
29 
30 VariableReference::VariableReference(const DOM::DOMString &name)
31  : m_name(name)
32 {
33 }
34 
35 bool VariableReference::isConstant() const
36 {
37  return false;
38 }
39 
40 QString VariableReference::dump() const
41 {
42  return QString() + "<variablereference name=\"" + m_name.string() + "\"/>";
43 }
44 
45 Value VariableReference::doEvaluate() const
46 {
47  QHash<DOM::DOMString, DOM::DOMString> &bindings = evaluationContext().variableBindings;
48  if (!bindings.contains(m_name)) {
49  // XXX What to do if an unknown variable is referenced?
50  return Value(DOMString());
51  }
52  return Value(bindings[ m_name ]);
53 }
54 
This file is part of the HTML rendering engine for KDE.
This class implements the basic string we use in the DOM.
Definition: dom_string.h:44
bool contains(const Key &key) const const
This file is part of the KDE documentation.
Documentation copyright © 1996-2021 The KDE developers.
Generated on Sat Oct 16 2021 22:48:02 by doxygen 1.8.11 written by Dimitri van Heesch, © 1997-2006

KDE's Doxygen guidelines are available online.