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Java > Open Source Codes > net > sf > saxon > expr > EagerLetExpression


1 package net.sf.saxon.expr;
2 import net.sf.saxon.trans.XPathException;
3 import net.sf.saxon.value.Value;
4 import net.sf.saxon.om.ValueRepresentation;
5
6 /**
7  * An EagerLetExpression is the same as a LetExpression except that the variable is evaluated using
8  * eager evaluation rather than lazy evaluation. This is used when performing diagnostic tracing.
9  */
10
11 public class EagerLetExpression extends LetExpression {
12
13     public EagerLetExpression() {}
14
15     /**
16      * Evaluate the variable.
17      */
18     
19     protected ValueRepresentation eval(XPathContext context) throws XPathException {
20         return ExpressionTool.eagerEvaluate(sequence, context);
21     }
22
23 }
24
25
26
27 //
28 // The contents of this file are subject to the Mozilla Public License Version 1.0 (the "License");
29 // you may not use this file except in compliance with the License. You may obtain a copy of the
30 // License at http://www.mozilla.org/MPL/
31 //
32 // Software distributed under the License is distributed on an "AS IS" basis,
33 // WITHOUT WARRANTY OF ANY KIND, either express or implied.
34 // See the License for the specific language governing rights and limitations under the License.
35 //
36 // The Original Code is: all this file.
37 //
38 // The Initial Developer of the Original Code is Michael H. Kay
39 //
40 // Portions created by (your name) are Copyright (C) (your legal entity). All Rights Reserved.
41 //
42 // Contributor(s): none.
43 //
44
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