uvenv(): proc->env may be NULL be before uplevel

36a1c80d · Yukihiro Matsumoto · 30b19048 · 36a1c80d
Commit 36a1c80d authored Jun 14, 2012 by Yukihiro Matsumoto
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src/vm.c src/vm.c +1 -1

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--- a/src/vm.c
+++ b/src/vm.c
@@ -94,8 +94,8 @@ uvenv(mrb_state *mrb, int up)
 {
  struct REnv *e = mrb->ci->proc->env;

-  if (!e) return 0;
  while (up--) {
+    if (!e) return 0;
    e = (struct REnv*)e->c;
  }
  return e;