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1 package gnu.bytecode;
2 import java.io.*;
3
4
7
8 public class ListCodeSize
9 {
10 public static void usage()
11 {
12 System.err.println("Usage: class methodname ...");
13 System.exit(-1);
14 }
15
16 static void print (Method method)
17 {
18 System.out.print(method);
19 CodeAttr code = method.getCode();
20 if (code == null)
21 System.out.print(": no code");
22 else
23 {
24 System.out.print(": ");
25 System.out.print(code.getPC());
26 System.out.print(" bytes");
27 }
28 System.out.println();
29 }
30
31 public static final void main (String  [] args)
32 {
33 if (args.length == 0)
34 usage();
35 String filename = args[0];
36 try
37 {
38 java.io.InputStream inp = new FileInputStream(filename);
39
40 ClassType ctype = new ClassType();
41 new ClassFileInput(ctype, inp);
42
43 if (args.length == 1)
44 {
45 for (Method method = ctype.getMethods(); method != null;
46 method = method.getNext())
47 {
48 print(method);
49 }
50 }
51 else
52 {
53 for (int i = 1; i < args.length; i++)
54 {
55 for (Method method = ctype.getMethods(); method != null;
56 method = method.getNext())
57 {
58 StringBuffer sbuf = new StringBuffer ();
59 sbuf.append(method.getName());
60 method.listParameters(sbuf);
61 sbuf.append(method.getReturnType().getName());
62 if (sbuf.toString().startsWith(args[i]))
63 print(method);
64 }
65 }
66 }
67 }
68 catch (java.io.FileNotFoundException e)
69 {
70 System.err.println("File "+filename+" not found");
71 System.exit(-1);
72 }
73 catch (java.io.IOException e)
74 {
75 System.err.println(e);
76 e.printStackTrace();
77 System.exit(-1);
78 }
79 }
80 }
81 |
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