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1   /*
2    * reserved comment block
3    * DO NOT REMOVE OR ALTER!
4    */
5   /*
6    * Copyright 2001-2004 The Apache Software Foundation.
7    *
8    * Licensed under the Apache License, Version 2.0 (the "License");
9    * you may not use this file except in compliance with the License.
10   * You may obtain a copy of the License at
11   *
12   *     http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing, software
15   * distributed under the License is distributed on an "AS IS" BASIS,
16   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17   * See the License for the specific language governing permissions and
18   * limitations under the License.
19   */
20  /*
21   * $Id: LocalNameCall.java,v 1.2.4.1 2005/09/01 16:00:21 pvedula Exp $
22   */
23  
24  package com.sun.org.apache.xalan.internal.xsltc.compiler;
25  
26  import java.util.Vector;
27  
28  import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen;
29  import com.sun.org.apache.bcel.internal.generic.INVOKEINTERFACE;
30  import com.sun.org.apache.bcel.internal.generic.INVOKESTATIC;
31  import com.sun.org.apache.bcel.internal.generic.InstructionList;
32  import com.sun.org.apache.xalan.internal.xsltc.compiler.util.ClassGenerator;
33  import com.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodGenerator;
34  
35  /**
36   * @author Morten Jorgensen
37   */
38  final class LocalNameCall extends NameBase {
39  
40      /**
41       * Handles calls with no parameter (current node is implicit parameter).
42       */
43      public LocalNameCall(QName fname) {
44          super(fname);
45      }
46  
47      /**
48       * Handles calls with one parameter (either node or node-set).
49       */
50      public LocalNameCall(QName fname, Vector arguments) {
51          super(fname, arguments);
52      }
53  
54      /**
55       * This method is called when the constructor is compiled in
56       * Stylesheet.compileConstructor() and not as the syntax tree is traversed.
57       */
58      public void translate(ClassGenerator classGen,
59                            MethodGenerator methodGen) {
60          final ConstantPoolGen cpg = classGen.getConstantPool();
61          final InstructionList il = methodGen.getInstructionList();
62  
63          // Returns the name of a node in the DOM
64          final int getNodeName = cpg.addInterfaceMethodref(DOM_INTF,
65                                                            "getNodeName",
66                                                            "(I)"+STRING_SIG);
67  
68          final int getLocalName = cpg.addMethodref(BASIS_LIBRARY_CLASS,
69                                                    "getLocalName",
70                                                    "(Ljava/lang/String;)"+
71                                                    "Ljava/lang/String;");
72          super.translate(classGen, methodGen);
73          il.append(new INVOKEINTERFACE(getNodeName, 2));
74          il.append(new INVOKESTATIC(getLocalName));
75      }
76  }