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1 package org.python.core;
3
4
7
8 public class PyTraceback extends PyObject
9 {
10 public PyObject tb_next;
11 public PyFrame tb_frame;
12 public int tb_lineno;
13
14 public PyTraceback(PyFrame frame) {
15 tb_frame = frame;
16 if (tb_frame != null)
17 tb_lineno = tb_frame.getline();
18 tb_next = Py.None;
19 }
20
21 public PyTraceback(PyTraceback next) {
22 tb_next = next;
23 if (next != null) {
24 tb_frame = next.tb_frame.f_back;
25 tb_lineno = tb_frame.getline();
26 }
27 }
28
29 private String  line() {
32 if (tb_frame == null || tb_frame.f_code == null)
33 return " (no code object) at line "+tb_lineno+"\n";
34 return " File \""+tb_frame.f_code.co_filename+
35 "\", line "+tb_lineno+
36 ", in "+tb_frame.f_code.co_name+"\n";
37 }
38
39 public void dumpStack(StringBuffer buf) {
40 buf.append(line());
41 if (tb_next != Py.None && tb_next != this)
42 ((PyTraceback)tb_next).dumpStack(buf);
43 else if (tb_next == this) {
44 buf.append("circularity detected!"+this+tb_next);
45 }
46 }
47
48 public String dumpStack() {
49 StringBuffer buf = new StringBuffer ();
50
51 buf.append("Traceback (innermost last):\n");
52 dumpStack(buf);
53
54 return buf.toString();
55 }
56
57 public String toString() {
58 return "<traceback object at " + " "+Py.idstr(this) + ">";
59 }
60 }
61 |
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