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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: RealExpr.java,v 1.2 2005/08/16 22:30:35 jeffsuttor Exp $
22   */
23  
24  package com.sun.org.apache.xalan.internal.xsltc.compiler;
25  
26  import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen;
27  import com.sun.org.apache.bcel.internal.generic.InstructionList;
28  import com.sun.org.apache.bcel.internal.generic.PUSH;
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  import com.sun.org.apache.xalan.internal.xsltc.compiler.util.Type;
32  import com.sun.org.apache.xalan.internal.xsltc.compiler.util.TypeCheckError;
33  
34  /**
35   * @author Jacek Ambroziak
36   * @author Santiago Pericas-Geertsen
37   */
38  final class RealExpr extends Expression {
39      private double _value;
40  
41      public RealExpr(double value) {
42          _value = value;
43      }
44  
45      public Type typeCheck(SymbolTable stable) throws TypeCheckError {
46          return _type = Type.Real;
47      }
48  
49      public String toString() {
50          return "real-expr(" + _value + ')';
51      }
52  
53      public void translate(ClassGenerator classGen, MethodGenerator methodGen) {
54          ConstantPoolGen cpg = classGen.getConstantPool();
55          InstructionList il = methodGen.getInstructionList();
56          il.append(new PUSH(cpg, _value));
57      }
58  }