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Java > Open Source Codes > jbet > DagMethodInfo


1 /*
2  * JBET - Java Binary Enhancement Tool
3  * Copyright (c) 2003 Networks Associates Technology, Inc.
4  *
5  * This software was developed under DARPA/SPAWAR contract
6  * N66001-00-C-8602 "SPMA" as part of the
7  * DARPA OASIS research program.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  * notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  * notice, this list of conditions and the following disclaimer in the
16  * documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  */
30
31 /* Represents a method as a list of basic blocks stored as value DAG's. */
32
33 package jbet;
34 import java.util.*;
35
36 public class DagMethodInfo extends MethodSignature
37 {
38     private MethodInfo origmi;
39     public DagClassInfo cr;
40
41     public DagMethodInfo() {}
42
43     /* copy informational fields from MethodInfo */
44
45     public DagMethodInfo (DagClassInfo crin, MethodInfo mi, boolean runGraphify)
46     throws ClassFileException, DataFlowException, ElementNotFoundException
47     {
48     cr = crin;
49     name = mi.name;
50     descriptor = mi.descriptor;
51     accessFlags = mi.accessFlags;
52     exceptions = mi.exceptions;
53     origmi = mi;
54
55     if (runGraphify) {
56         dags = DagSnippit.graphify (mi);
57         ((DagSnippit)dags).method = this;
58     }
59     }
60
61     public DagMethodInfo (DagClassInfo crin, MethodInfo mi) {
62     cr = crin;
63     name = mi.name;
64     descriptor = mi.descriptor;
65     accessFlags = mi.accessFlags;
66     exceptions = mi.exceptions;
67     origmi = mi;
68     }
69
70     public Object JavaDoc classrep() { return cr; }
71
72     public boolean isStatic() {
73     return (accessFlags & MethodInfo.ACC_STATIC) != 0;
74     }
75
76     public boolean isVirtual() {
77     return (accessFlags & MethodInfo.ACC_STATIC) == 0;
78     }
79         
80     public boolean isNative() {
81     return (accessFlags & MethodInfo.ACC_NATIVE) != 0;
82     }
83
84
85     public DagSnippit dags() {
86     return (DagSnippit) dags;
87     }
88
89     public MethodInfo resolve() {
90     return origmi;
91     }
92 }
93
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