Mercurial > hg > Members > kono > jpf-core
annotate src/main/gov/nasa/jpf/jvm/bytecode/JVMLocalVariableInstruction.java @ 0:61d41facf527
initial v8 import (history reset)
author | Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> |
---|---|
date | Fri, 23 Jan 2015 10:14:01 -0800 |
parents | |
children |
rev | line source |
---|---|
0
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
1 /* |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
2 * Copyright (C) 2014, United States Government, as represented by the |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
3 * Administrator of the National Aeronautics and Space Administration. |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
4 * All rights reserved. |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
5 * |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
6 * The Java Pathfinder core (jpf-core) platform is licensed under the |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
7 * Apache License, Version 2.0 (the "License"); you may not use this file except |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
8 * in compliance with the License. You may obtain a copy of the License at |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
9 * |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
10 * http://www.apache.org/licenses/LICENSE-2.0. |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
11 * |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
12 * Unless required by applicable law or agreed to in writing, software |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
13 * distributed under the License is distributed on an "AS IS" BASIS, |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
15 * See the License for the specific language governing permissions and |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
16 * limitations under the License. |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
17 */ |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
18 package gov.nasa.jpf.jvm.bytecode; |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
19 |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
20 import gov.nasa.jpf.vm.bytecode.LocalVariableInstruction; |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
21 import gov.nasa.jpf.vm.Instruction; |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
22 import gov.nasa.jpf.vm.LocalVarInfo; |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
23 |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
24 /** |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
25 * class abstracting instructions that access local variables, to keep |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
26 * track of slot/varname mapping |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
27 */ |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
28 public abstract class JVMLocalVariableInstruction extends Instruction implements JVMInstruction, LocalVariableInstruction { |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
29 |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
30 protected int index; |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
31 protected LocalVarInfo lv; |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
32 |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
33 |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
34 protected JVMLocalVariableInstruction(int index){ |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
35 this.index = index; |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
36 } |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
37 |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
38 @Override |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
39 public int getLocalVariableSlot(){ |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
40 return index; |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
41 } |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
42 |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
43 public int getLocalVariableIndex() { |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
44 return index; |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
45 } |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
46 |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
47 @Override |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
48 public LocalVarInfo getLocalVarInfo(){ |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
49 if (lv == null){ |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
50 lv = mi.getLocalVar(index, position+getLength()); |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
51 } |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
52 return lv; |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
53 } |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
54 |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
55 public String getLocalVariableName () { |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
56 LocalVarInfo lv = getLocalVarInfo(); |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
57 return (lv == null) ? Integer.toString(index) : lv.getName(); |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
58 } |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
59 |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
60 public String getLocalVariableType () { |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
61 LocalVarInfo lv = getLocalVarInfo(); |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
62 return (lv == null) ? "?" : lv.getType(); |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
63 } |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
64 |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
65 /** |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
66 * return the fully qualified class/method/var name |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
67 * (don't use this for top-level filtering since it dynamically constructs the name) |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
68 */ |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
69 @Override |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
70 public String getVariableId () { |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
71 return mi.getClassInfo().getName() + '.' + mi.getUniqueName() + '.' + getLocalVariableName(); |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
72 } |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
73 |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
74 @Override |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
75 public void accept(JVMInstructionVisitor insVisitor) { |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
76 insVisitor.visit(this); |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
77 } |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
78 |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
79 public abstract String getBaseMnemonic(); |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
80 |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
81 @Override |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
82 public String getMnemonic(){ |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
83 String baseMnemonic = getBaseMnemonic(); |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
84 |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
85 if (index <= 3){ |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
86 return baseMnemonic + '_' + index; |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
87 } else { |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
88 return baseMnemonic; |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
89 } |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
90 } |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
91 |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
92 @Override |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
93 public String toString(){ |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
94 String baseMnemonic = getBaseMnemonic(); |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
95 |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
96 if (index <= 3){ |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
97 return baseMnemonic + '_' + index; |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
98 } else { |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
99 return baseMnemonic + " " + index; |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
100 } |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
101 } |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
102 } |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
103 |
61d41facf527
initial v8 import (history reset)
Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
parents:
diff
changeset
|
104 |