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Java > Open Source Codes > gov > nasa > jpf > jvm > bytecode > IfInstruction


1 //
2 // Copyright (C) 2005 United States Government as represented by the
3 // Administrator of the National Aeronautics and Space Administration
4 // (NASA). All Rights Reserved.
5 //
6 // This software is distributed under the NASA Open Source Agreement
7 // (NOSA), version 1.3. The NOSA has been approved by the Open Source
8 // Initiative. See the file NOSA-1.3-JPF at the top of the distribution
9 // directory tree for the complete NOSA document.
10 //
11 // THE SUBJECT SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY OF ANY
12 // KIND, EITHER EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT
13 // LIMITED TO, ANY WARRANTY THAT THE SUBJECT SOFTWARE WILL CONFORM TO
14 // SPECIFICATIONS, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR
15 // A PARTICULAR PURPOSE, OR FREEDOM FROM INFRINGEMENT, ANY WARRANTY THAT
16 // THE SUBJECT SOFTWARE WILL BE ERROR FREE, OR ANY WARRANTY THAT
17 // DOCUMENTATION, IF PROVIDED, WILL CONFORM TO THE SUBJECT SOFTWARE.
18 //
19 package gov.nasa.jpf.jvm.bytecode;
20
21 import gov.nasa.jpf.util.CoverageManager;
22
23
24 /**
25  * abstraction for all comparison instructions
26  */
27 public abstract class IfInstruction extends Instruction {
28   private static int indexDummy = CoverageManager.addIF("SystemDummy");
29   public int indexTrue = 0;
30   public int indexFalse = 0;
31
32   // to allow a classname and methodname context for each instruction
33 public void setContext (String JavaDoc className, String JavaDoc methodName, int lineNumber,
34                           int offset) {
35     if (!(className.startsWith("java."))) {
36       indexTrue = CoverageManager.addIF(className + "/" + methodName + "/" +
37                                         lineNumber + "/" + offset + "/true");
38       indexFalse = CoverageManager.addIF(className + "/" + methodName + "/" +
39                                          lineNumber + "/" + offset +
40                                          "/false");
41     } else {
42       indexTrue = indexFalse = indexDummy;
43     }
44   }
45 }
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