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1
2 package polyglot.util.typedump;
3
4 import polyglot.util.*;
5 import polyglot.types.Type;
6 import polyglot.types.TypeSystem;
7 import polyglot.frontend.ExtensionInfo;
8
9 public class Main {
10 public static void main(String  args[]) {
11 String extension = "jl";
12 String className;
13 if (args.length == 3 && args[0].equals("-ext"))
14 extension = args[1];
15 if ((extension == null && args.length != 1) ||
16 (extension != null && args.length != 3)) {
17 System.err.println("Usage: " +
18 "polyglot.util.typedump.Main "+
19 "[-ext <extension>] <classname>");
20 System.exit(1);
21 }
22
23 if (extension == null)
24 className = args[0];
25 else
26 className = args[2];
27
28 ExtensionInfo extInfo = null;
29
30 String extClassName =
31 "polyglot.ext." + extension + ".ExtensionInfo";
32 Class extClass = null;
33
34 try {
35 extClass = Class.forName(extClassName);
36 }
37 catch (ClassNotFoundException e) {
38 System.err.println( "Extension " + extension +
39 " not found: could not find class " +
40 extClassName + ".");
41 System.exit( 1);
42 }
43
44 try {
45 extInfo = (ExtensionInfo) extClass.newInstance();
46 }
47 catch (Exception e) {
48 System.err.println( "Extension " + extension +
49 " could not be loaded: "+
50 "could not instantiate " + extClassName + ".");
51 System.exit( 1);
52 }
53
54 try {
55 TypeSystem ts = extInfo.typeSystem();
56 TypeDumper t = TypeDumper.load(className, ts);
57
58 CodeWriter cw = new CodeWriter(System.out, 72);
59
60 t.dump(cw);
61 cw.newline(0);
62
63 try {
64 cw.flush();
65 } catch (java.io.IOException exn) {
66 System.err.println(exn.getMessage());
67 }
68 } catch (java.io.IOException exn) {
69 System.err.println("IO errors.");
70 System.err.println(exn.getMessage());
71 } catch (ClassNotFoundException exn) {
72 System.err.println("Could not load .class: "+className);
73 System.err.println(exn.getMessage());
74 } catch (NoSuchFieldException exn) {
75 System.err.println("Could not reflect jlc fields");
76 System.err.println(exn.getMessage());
77 } catch (SecurityException exn) {
78 System.err.println("Security policy error.");
79 System.err.println(exn.getMessage());
80 }
81 }
82 }
83 |
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