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Java > Open Source Codes > jbet > cmd > listbbs


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 /*
32    Command object called by Jbet.doCommands().
33    run() parses the input using the supplied lexer.
34
35    @see Command
36 */
37
38 package jbet.cmd;
39 import jbet.*;
40 import java.io.*;
41 import java.util.*;
42
43 public class listbbs implements Command
44 {
45     public int helplevel() { return 3; }
46     public String JavaDoc shorthelp() { return "list basic blocks in a method"; }
47     public String JavaDoc longhelp() {
48     return
49         "jbet listbbs <class>.<method>\t\tList basic blocks\n"; }
50
51     public void run (Lexer lexer) throws Exception JavaDoc
52     {
53     lexer.match(Token.END_OF_OPTS);
54     Object JavaDoc thing = lexer.getThing(Jbet.default_class);
55     MethodInfo mi;
56     lexer.term();
57     if (thing instanceof MethodInfo)
58         mi = (MethodInfo)thing;
59     else {
60         Jbet.error.println("listbbs: not a method");
61         return;
62     }
63
64     Vector bbs = InstrBlock.FindBasicBlocks (mi, null);
65     
66     for (int i = 0; i < bbs.size(); i++)
67         ((Block)(bbs.elementAt (i))).printinfo (Jbet.output, true);
68
69     Jbet.output.println ();
70     }
71 }
72
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