KickJava   Java API By Example, From Geeks To Geeks.

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


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.jvm.*;
22
23 import org.apache.bcel.classfile.ConstantPool;
24
25
26 /**
27  * Create new array of reference
28  * ..., count => ..., arrayref
29  */
30 public class ANEWARRAY extends Instruction {
31   protected String JavaDoc type;
32
33   public void setPeer (org.apache.bcel.generic.Instruction i, ConstantPool cp) {
34     type = cp.constantToString(cp.getConstant(
35                                      ((org.apache.bcel.generic.ANEWARRAY) i).getIndex()));
36
37     if (!type.startsWith("[")) {
38       type = "L" + type + ";";
39     }
40   }
41
42   public Instruction execute (SystemState ss, KernelState ks, ThreadInfo th) {
43     // size of the stack
44 int size = th.pop();
45
46
47     // pushes the object reference on the top stack frame
48 th.push(ks.da.newArray(type, size, th), true);
49
50     return getNext(th);
51   }
52
53   public int getByteCode () {
54     return 0xBD;
55   }
56 }
57
Popular Tags