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Java > Open Source Codes > jbet > cmd > listdags


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
36 package jbet.cmd;
37 import jbet.*;
38 import java.io.*;
39 import java.util.*;
40
41 public class listdags implements Command
42 {
43     public int helplevel() { return 3; }
44     public String JavaDoc shorthelp() { return "list basic blocks as DAGS"; }
45     public String JavaDoc longhelp() {
46     return
47         "jbet listdags <class>.<method>\t\tList basic blocks, in DAG representation\n"; }
48
49     public void run (Lexer lexer) throws Exception JavaDoc
50     {
51     loop:
52     while(true) {
53         switch(lexer.read().type) {
54         case Token.END_OF_OPTS: break loop;
55         default: lexer.unexpected(lexer.justread());
56         }
57     }
58
59     Object JavaDoc thing = lexer.getThing(Jbet.default_class);
60     MethodInfo mi;
61     if (thing instanceof MethodInfo)
62         mi = (MethodInfo) thing;
63     else {
64         Jbet.output.println("listdags: not a method");
65         return;
66     }
67     lexer.term();
68     
69     DagSnippit dags = DagSnippit.graphify (mi);
70
71     dags.method = new DagMethodInfo (new DagClassInfo (mi.cr), mi);
72
73     dags.printinfo(Jbet.output);
74     }
75 }
76
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