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skip "trace:" header if no backtrace line exists

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This commit is contained in:
Yukihiro "Matz" Matsumoto
2014-01-08 00:49:23 +09:00
parent 1cdf283899
commit cff4ac6bb7
1 changed files with 5 additions and 2 deletions
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src/backtrace.c
+5 -2
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@@ -62,9 +62,8 @@ mrb_output_backtrace(mrb_state *mrb, struct RObject *exc, output_stream_func fun
mrb_callinfo *ci;
mrb_int ciidx;
const char *filename, *method, *sep;
int i, lineno;
int i, lineno, tracehead = 1;
func(mrb, stream, 1, "trace:\n");
ciidx = mrb_fixnum(mrb_obj_iv_get(mrb, exc, mrb_intern_lit(mrb, "ciidx")));
if (ciidx >= mrb->c->ciend - mrb->c->cibase)
ciidx = 10; /* ciidx is broken... */
@@ -103,6 +102,10 @@ mrb_output_backtrace(mrb_state *mrb, struct RObject *exc, output_stream_func fun
filename = "(unknown)";
}
if (tracehead) {
func(mrb, stream, 1, "trace:\n");
tracehead = 0;
}
method = mrb_sym2name(mrb, ci->mid);
if (method) {
const char *cn = mrb_class_name(mrb, ci->proc->target_class);