From 497b19ce22e2c48339695b8a9943c21db2f2a7dd Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby-lang.org>
Date: Mon, 1 May 2017 19:16:16 +0900
Subject: Support the case when the backtrace is not an array.

---
 src/error.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/error.c')

diff --git a/src/error.c b/src/error.c
index 13373d8f8..5bb547afe 100644
--- a/src/error.c
+++ b/src/error.c
@@ -174,7 +174,7 @@ exc_get_backtrace(mrb_state *mrb, mrb_value exc)
 
   attr_name = mrb_intern_lit(mrb, "backtrace");
   backtrace = mrb_iv_get(mrb, exc, attr_name);
-  if (mrb_nil_p(backtrace)) {
+  if (!mrb_array_p(backtrace)) {
     if (mrb_obj_ptr(exc) == mrb->backtrace.exc && mrb->backtrace.n > 0) {
       backtrace = mrb_restore_backtrace(mrb);
       mrb->backtrace.n = 0;
-- 
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