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-rw-r--r--mrbgems/mruby-eval/src/eval.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/mrbgems/mruby-eval/src/eval.c b/mrbgems/mruby-eval/src/eval.c
index e39d32ab8..26dd728ba 100644
--- a/mrbgems/mruby-eval/src/eval.c
+++ b/mrbgems/mruby-eval/src/eval.c
@@ -26,6 +26,8 @@ get_closure_irep(mrb_state *mrb, int level)
}
if (!e) return NULL;
+ if (!MRB_ENV_STACK_SHARED_P(e)) return NULL;
+
proc = c->cibase[e->cioff].proc;
if (!proc || MRB_PROC_CFUNC_P(proc)) {