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save lastpc on exception and use it in mruby stack trace

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This commit is contained in:
Yukihiro Matz Matsumoto
2012-12-12 18:23:20 +09:00
parent f63d5c2905
commit fd12f87712
3 changed files with 31 additions and 10 deletions
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tools/mruby/mruby.c
+25 -8
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@@ -188,8 +188,15 @@ showcallinfo(mrb_state *mrb)
mrb_irep *irep = ci->proc->body.irep;
if (irep->filename != NULL)
filename = irep->filename;
if (irep->lines != NULL && i+1 <= ciidx) {
mrb_code *pc = mrb->cibase[i+1].pc;
if (irep->lines != NULL) {
mrb_code *pc;
if (i+1 <= ciidx) {
pc = mrb->cibase[i+1].pc;
}
else {
pc = (mrb_code*)mrb_voidp(mrb_obj_iv_get(mrb, mrb->exc, mrb_intern(mrb, "lastpc")));
}
if (irep->iseq <= pc && pc < irep->iseq + irep->ilen) {
line = irep->lines[pc - irep->iseq - 1];
}
@@ -201,12 +208,22 @@ showcallinfo(mrb_state *mrb)
sep = "#";
method = mrb_sym2name(mrb, ci->mid);
printf("\t[%d] %s:%d%s%s%s%s\n",
i, filename, line,
method ? ":in " : "",
method ? mrb_class_name(mrb, ci->proc->target_class) : "",
method ? sep : "",
method ? method : "");
if (method) {
const char *cn = mrb_class_name(mrb, ci->proc->target_class);
if (cn) {
printf("\t[%d] %s:%d:in %s%s%s\n",
i, filename, line, cn, sep, method);
}
else {
printf("\t[%d] %s:%d:in %s\n",
i, filename, line, method);
}
}
else {
printf("\t[%d] %s:%d\n",
i, filename, line);
}
}
}