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: BooleanCall.java,v 1.2.4.1 2005/09/01 11:43:50 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.xalan.internal.xsltc.compiler.util.ClassGenerator;
  29 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodGenerator;
  30 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.Type;
  31 import com.sun.org.apache.xalan.internal.xsltc.compiler.util.TypeCheckError;
  32 
  33 /**
  34  * @author Jacek Ambroziak
  35  * @author Santiago Pericas-Geertsen
  36  */
  37 final class BooleanCall extends FunctionCall {
  38 
  39     private Expression _arg = null;
  40 
  41     public BooleanCall(QName fname, Vector arguments) {
  42         super(fname, arguments);
  43         _arg = argument(0);
  44     }
  45 
  46     public Type typeCheck(SymbolTable stable) throws TypeCheckError {
  47         _arg.typeCheck(stable);
  48         return _type = Type.Boolean;
  49     }
  50 
  51     public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
  52         _arg.translate(classGen, methodGen);
  53         final Type targ = _arg.getType();
  54         if (!targ.identicalTo(Type.Boolean)) {
  55             _arg.startIterator(classGen, methodGen);
  56             targ.translateTo(classGen, methodGen, Type.Boolean);
  57         }
  58     }
  59 }