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Backtrace list must be an array of strings; fix #3408

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matz committed Jan 23, 2017
1 parent 28b7b9e commit 324887d0d61ce2127dfd839930a88507c1641b75
Showing with 13 additions and 0 deletions.
  1. +13 −0 src/error.c
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@@ -208,6 +208,19 @@ exc_set_backtrace(mrb_state *mrb, mrb_value exc)
mrb_value backtrace;
mrb_get_args(mrb, "o", &backtrace);
if (!mrb_array_p(backtrace)) {
type_err:
mrb_raise(mrb, E_TYPE_ERROR, "backtrace must be Array of String");
}
else {
const mrb_value *p = RARRAY_PTR(backtrace);
const mrb_value *pend = p + RARRAY_LEN(backtrace);
while (p < pend) {
if (!mrb_string_p(*p)) goto type_err;
p++;
}
}
mrb_iv_set(mrb, exc, mrb_intern_lit(mrb, "backtrace"), backtrace);
return backtrace;

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