From db098d3e0ef05372f6f08cdc3332790f0f65dcf1 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby-lang.org>
Date: Sat, 19 Aug 2017 11:39:42 +0900
Subject: Type check before traversing `irep->outer`; fix #3782

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

(limited to 'src/variable.c')

diff --git a/src/variable.c b/src/variable.c
index 7395f23c7..a8bba8b80 100644
--- a/src/variable.c
+++ b/src/variable.c
@@ -853,7 +853,7 @@ mrb_vm_const_get(mrb_state *mrb, mrb_sym sym)
   if (c2->tt == MRB_TT_CLASS || c2->tt == MRB_TT_MODULE) c = c2;
   mrb_assert(!MRB_PROC_CFUNC_P(mrb->c->ci->proc));
   proc = mrb->c->ci->proc->body.irep->outer;
-  while (proc) {
+  while (proc && proc->tt == MRB_TT_PROC) {
     mrb_assert(!MRB_PROC_CFUNC_P(proc));
     if (MRB_PROC_CLASS_P(proc) && proc->target_class) {
       c2 = proc->target_class;
-- 
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