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0001 /* 0002 * variablereference.cc - Copyright 2005 Frerich Raabe <raabe@kde.org> 0003 * 0004 * Redistribution and use in source and binary forms, with or without 0005 * modification, are permitted provided that the following conditions 0006 * are met: 0007 * 0008 * 1. Redistributions of source code must retain the above copyright 0009 * notice, this list of conditions and the following disclaimer. 0010 * 2. Redistributions in binary form must reproduce the above copyright 0011 * notice, this list of conditions and the following disclaimer in the 0012 * documentation and/or other materials provided with the distribution. 0013 * 0014 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 0015 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 0016 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 0017 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 0018 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 0019 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 0020 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 0021 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 0022 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 0023 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 0024 */ 0025 #include "variablereference.h" 0026 #include <dom_stringimpl.h> 0027 using namespace khtml; 0028 using namespace khtml::XPath; 0029 0030 VariableReference::VariableReference(const DOM::DOMString &name) 0031 : m_name(name) 0032 { 0033 } 0034 0035 bool VariableReference::isConstant() const 0036 { 0037 return false; 0038 } 0039 0040 QString VariableReference::dump() const 0041 { 0042 return QString() + "<variablereference name=\"" + m_name.string() + "\"/>"; 0043 } 0044 0045 Value VariableReference::doEvaluate() const 0046 { 0047 QHash<DOM::DOMString, DOM::DOMString> &bindings = evaluationContext().variableBindings; 0048 if (!bindings.contains(m_name)) { 0049 // XXX What to do if an unknown variable is referenced? 0050 return Value(DOMString()); 0051 } 0052 return Value(bindings[ m_name ]); 0053 } 0054