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Java > Open Source Codes > org > apache > xalan > xsltc > compiler > NameCall


1 /*
2  * Copyright 2001-2004 The Apache Software Foundation.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 /*
17  * $Id: NameCall.java,v 1.6 2004/02/16 22:24:29 minchau Exp $
18  */
19
20 package org.apache.xalan.xsltc.compiler;
21
22 import java.util.Vector JavaDoc;
23
24 import org.apache.bcel.generic.ConstantPoolGen;
25 import org.apache.bcel.generic.INVOKEINTERFACE;
26 import org.apache.bcel.generic.InstructionList;
27 import org.apache.xalan.xsltc.compiler.util.ClassGenerator;
28 import org.apache.xalan.xsltc.compiler.util.MethodGenerator;
29
30 /**
31  * @author Jacek Ambroziak
32  * @author Santiago Pericas-Geertsen
33  * @author Morten Jorgensen
34  */
35 final class NameCall extends NameBase {
36
37     /**
38      * Handles calls with no parameter (current node is implicit parameter).
39      */
40     public NameCall(QName fname) {
41     super(fname);
42     }
43
44     /**
45      * Handles calls with one parameter (either node or node-set).
46      */
47     public NameCall(QName fname, Vector JavaDoc arguments) {
48     super(fname, arguments);
49     }
50
51     /**
52      * Translate code that leaves a node's QName (as a String) on the stack
53      */
54     public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
55     final ConstantPoolGen cpg = classGen.getConstantPool();
56     final InstructionList il = methodGen.getInstructionList();
57
58     final int getName = cpg.addInterfaceMethodref(DOM_INTF,
59                               GET_NODE_NAME,
60                               GET_NODE_NAME_SIG);
61     super.translate(classGen, methodGen);
62     il.append(new INVOKEINTERFACE(getName, 2));
63     }
64 }
65
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