001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one
003     * or more contributor license agreements. See the NOTICE file
004     * distributed with this work for additional information
005     * regarding copyright ownership. The ASF licenses this file
006     * to you under the Apache License, Version 2.0 (the  "License");
007     * you may not use this file except in compliance with the License.
008     * You may obtain a copy of the License at
009     *
010     *     http://www.apache.org/licenses/LICENSE-2.0
011     *
012     * Unless required by applicable law or agreed to in writing, software
013     * distributed under the License is distributed on an "AS IS" BASIS,
014     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015     * See the License for the specific language governing permissions and
016     * limitations under the License.
017     */
018    /*
019     * $Id: NameCall.java 468650 2006-10-28 07:03:30Z minchau $
020     */
021    
022    package org.apache.xalan.xsltc.compiler;
023    
024    import java.util.Vector;
025    
026    import org.apache.bcel.generic.ConstantPoolGen;
027    import org.apache.bcel.generic.INVOKEINTERFACE;
028    import org.apache.bcel.generic.InstructionList;
029    import org.apache.xalan.xsltc.compiler.util.ClassGenerator;
030    import org.apache.xalan.xsltc.compiler.util.MethodGenerator;
031    
032    /**
033     * @author Jacek Ambroziak
034     * @author Santiago Pericas-Geertsen
035     * @author Morten Jorgensen
036     */
037    final class NameCall extends NameBase {
038    
039        /**
040         * Handles calls with no parameter (current node is implicit parameter).
041         */
042        public NameCall(QName fname) {
043            super(fname);
044        }
045    
046        /**
047         * Handles calls with one parameter (either node or node-set).
048         */
049        public NameCall(QName fname, Vector arguments) {
050            super(fname, arguments);
051        }
052    
053        /**
054         * Translate code that leaves a node's QName (as a String) on the stack
055         */ 
056        public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
057            final ConstantPoolGen cpg = classGen.getConstantPool();
058            final InstructionList il = methodGen.getInstructionList();
059    
060            final int getName = cpg.addInterfaceMethodref(DOM_INTF,
061                                                          GET_NODE_NAME,
062                                                          GET_NODE_NAME_SIG);
063            super.translate(classGen, methodGen);
064            il.append(new INVOKEINTERFACE(getName, 2));
065        }
066    }