1 /*
   2  * reserved comment block
   3  * DO NOT REMOVE OR ALTER!
   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 java.util.Vector;
  25 
  26 import com.sun.org.apache.bcel.internal.generic.BranchHandle;
  27 import com.sun.org.apache.bcel.internal.generic.GOTO;
  28 import com.sun.org.apache.bcel.internal.generic.InstructionList;
  29 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.ClassGenerator;
  30 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodGenerator;
  31 
  32 /**
  33  * @author Jacek Ambroziak
  34  * @author Santiago Pericas-Geertsen
  35  */
  36 final class NotCall extends FunctionCall {
  37     public NotCall(QName fname, Vector arguments) {
  38         super(fname, arguments);
  39     }
  40 
  41     public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
  42         final InstructionList il = methodGen.getInstructionList();
  43         argument().translate(classGen, methodGen);
  44         il.append(ICONST_1);
  45         il.append(IXOR);
  46     }
  47 
  48     public void translateDesynthesized(ClassGenerator classGen,
  49                                        MethodGenerator methodGen) {
  50         final InstructionList il = methodGen.getInstructionList();
  51         final Expression exp = argument();
  52         exp.translateDesynthesized(classGen, methodGen);
  53         final BranchHandle gotoh = il.append(new GOTO(null));
  54         _trueList = exp._falseList;     // swap flow lists
  55         _falseList = exp._trueList;
  56         _falseList.add(gotoh);
  57     }
  58 }