1 /*
   2  * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
   3  * @LastModified: Oct 2017
   4  */
   5 /*
   6  * Licensed to the Apache Software Foundation (ASF) under one or more
   7  * contributor license agreements.  See the NOTICE file distributed with
   8  * this work for additional information regarding copyright ownership.
   9  * The ASF licenses this file to You under the Apache License, Version 2.0
  10  * (the "License"); you may not use this file except in compliance with
  11  * the License.  You may obtain a copy of the License at
  12  *
  13  *      http://www.apache.org/licenses/LICENSE-2.0
  14  *
  15  * Unless required by applicable law or agreed to in writing, software
  16  * distributed under the License is distributed on an "AS IS" BASIS,
  17  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  18  * See the License for the specific language governing permissions and
  19  * limitations under the License.
  20  */
  21 
  22 package com.sun.org.apache.xalan.internal.xsltc.compiler;
  23 
  24 import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen;
  25 import com.sun.org.apache.bcel.internal.generic.INVOKEINTERFACE;
  26 import com.sun.org.apache.bcel.internal.generic.INVOKESTATIC;
  27 import com.sun.org.apache.bcel.internal.generic.InstructionList;
  28 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.ClassGenerator;
  29 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodGenerator;
  30 import java.util.List;
  31 
  32 /**
  33  * @author Morten Jorgensen

  34  */
  35 final class LocalNameCall extends NameBase {
  36 
  37     /**
  38      * Handles calls with no parameter (current node is implicit parameter).
  39      */
  40     public LocalNameCall(QName fname) {
  41         super(fname);
  42     }
  43 
  44     /**
  45      * Handles calls with one parameter (either node or node-set).
  46      */
  47     public LocalNameCall(QName fname, List<Expression> arguments) {
  48         super(fname, arguments);
  49     }
  50 
  51     /**
  52      * This method is called when the constructor is compiled in
  53      * Stylesheet.compileConstructor() and not as the syntax tree is traversed.
  54      */
  55     public void translate(ClassGenerator classGen,
  56                           MethodGenerator methodGen) {
  57         final ConstantPoolGen cpg = classGen.getConstantPool();
  58         final InstructionList il = methodGen.getInstructionList();
  59 
  60         // Returns the name of a node in the DOM
  61         final int getNodeName = cpg.addInterfaceMethodref(DOM_INTF,
  62                                                           "getNodeName",
  63                                                           "(I)"+STRING_SIG);
  64 
  65         final int getLocalName = cpg.addMethodref(BASIS_LIBRARY_CLASS,
  66                                                   "getLocalName",
  67                                                   "(Ljava/lang/String;)"+
  68                                                   "Ljava/lang/String;");
  69         super.translate(classGen, methodGen);
  70         il.append(new INVOKEINTERFACE(getNodeName, 2));
  71         il.append(new INVOKESTATIC(getLocalName));
  72     }
  73 }
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