backtrace.c: stop skipping frame with file/line information.
Instead, copy them from the outer frame as CRuby does.
MODIFY
src/backtrace.c
src/backtrace.c
@@ -32,13 +32,10 @@ mrb_value mrb_unpack_backtrace(mrb_state *mrb, mrb_value backtrace);
static void
each_backtrace(mrb_state *mrb, ptrdiff_t ciidx, each_backtrace_func func, void *data)
{
- ptrdiff_t i;
- int n = 0;
-
if (ciidx >= mrb->c->ciend - mrb->c->cibase)
ciidx = 10; /* ciidx is broken... */
- for (i=ciidx; i >= 0; i--) {
+ for (ptrdiff_t i=ciidx; i >= 0; i--) {
struct backtrace_location loc;
mrb_callinfo *ci;
const mrb_irep *irep;
@@ -52,7 +49,6 @@ each_backtrace(mrb_state *mrb, ptrdiff_t ciidx, each_backtrace_func func, void *
irep = ci->proc->body.irep;
if (!irep) continue;
-
if (mrb->c->cibase[i].pc) {
pc = &mrb->c->cibase[i].pc[-1];
}
@@ -60,16 +56,37 @@ each_backtrace(mrb_state *mrb, ptrdiff_t ciidx, each_backtrace_func func, void *
continue;
}
+ loc.method_id = ci->mid;
+ idx = (uint32_t)(pc - irep->iseq);
+ loc.lineno = mrb_debug_get_line(mrb, irep, idx);
+ if (loc.lineno == -1) {
+ for (ptrdiff_t j=i-1; j >= 0; j--) {
+ ci = &mrb->c->cibase[j];
+
+ if (!ci->proc) continue;
+ if (MRB_PROC_CFUNC_P(ci->proc)) continue;
+
+ irep = ci->proc->body.irep;
+ if (!irep) continue;
+
+ if (mrb->c->cibase[j].pc) {
+ pc = &mrb->c->cibase[j].pc[-1];
+ }
+ else {
+ continue;
+ }
+
idx = (uint32_t)(pc - irep->iseq);
loc.lineno = mrb_debug_get_line(mrb, irep, idx);
- if (n++ == 0 && loc.lineno == -1 && ci->acc < 0) continue;
+ if (loc.lineno > 0) break;
+ }
+ }
loc.filename = mrb_debug_get_filename(mrb, irep, idx);
if (!loc.filename) {
loc.filename = "(unknown)";
}
- loc.method_id = ci->mid;
func(mrb, &loc, data);
}
}

backtrace.c: stop skipping frame with file/line information.

Instead, copy them from the outer frame as CRuby does.