`proc->body.irep` may be NULL; fix #3761

1b9c4855 · Yukihiro "Matz" Matsumoto · 00666139 · 1b9c4855
Commit 1b9c4855 authored Aug 05, 2017 by Yukihiro "Matz" Matsumoto
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src/gc.c src/gc.c +1 -1

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--- a/src/gc.c
+++ b/src/gc.c
@@ -647,7 +647,7 @@ gc_mark_children(mrb_state *mrb, mrb_gc *gc, struct RBasic *obj)
      mrb_gc_mark(mrb, (struct RBasic*)p->env);
      mrb_gc_mark(mrb, (struct RBasic*)p->target_class);
-      if (!MRB_PROC_CFUNC_P(p)) {
+      if (!MRB_PROC_CFUNC_P(p) && p->body.irep) {
        mrb_gc_mark(mrb, (struct RBasic*)p->body.irep->outer);
      }
    }