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Check backtrace info may not be set (esp. NoMemError); fix #3663

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Yukihiro "Matz" Matsumoto
2017-05-25 12:56:19 +09:00
parent 5e1a6a2cc2
commit e969229b77
1 changed files with 2 additions and 0 deletions
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src/backtrace.c
+2
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@@ -138,6 +138,7 @@ mrb_print_backtrace(mrb_state *mrb)
}
backtrace = mrb_obj_iv_get(mrb, mrb->exc, mrb_intern_lit(mrb, "backtrace"));
if (mrb_nil_p(backtrace)) return;
if (mrb_array_p(backtrace)) {
print_backtrace(mrb, backtrace);
}
@@ -198,6 +199,7 @@ mrb_unpack_backtrace(mrb_state *mrb, mrb_value backtrace)
struct backtrace_location *bt;
mrb_int n, i;
if (mrb_nil_p(backtrace)) return mrb_ary_new_capa(mrb, 0);
if (mrb_array_p(backtrace)) return backtrace;
if (!mrb_string_p(backtrace)) {
broken: