1 /*

     2  * Copyright 2005 Frerich Raabe <raabe@kde.org>

     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 

    26 #ifndef XPathVariableReference_h

    27 #define XPathVariableReference_h

    28 

    29 #if ENABLE(XPATH)

    30 

    31 #include "XPathExpressionNode.h"

    32 

    33 namespace WebCore {

    34 

    35     namespace XPath {

    36 

    37         // Variable references are not used with XPathEvaluator.

    38         class VariableReference : public Expression {

    39         public:

    40             VariableReference(const String& name);

    41         private:

    42             virtual Value evaluate() const;

    43             virtual Value::Type resultType() const { ASSERT_NOT_REACHED(); return Value::NumberValue; }

    44             String m_name;

    45         };

    46 

    47     }

    48 }

    49 

    50 #endif // ENABLE(XPATH)

    51 

    52 #endif // XPath_VariableReference_H