parser_state->locals may be NULL on some error conditions; fix #2769

b3b6fe3c · Yukihiro "Matz" Matsumoto · 6246483f · b3b6fe3c
Commit b3b6fe3c authored Apr 27, 2015 by Yukihiro "Matz" Matsumoto
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src/parse.y src/parse.y +2 -1

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--- a/src/parse.y
+++ b/src/parse.y
@@ -274,7 +274,8 @@ local_add(parser_state *p, mrb_sym sym)
 static node*
 new_scope(parser_state *p, node *body)
 {
-  return cons((node*)NODE_SCOPE, cons(p->locals->car, body));
+  node *n = p->locals ? p->locals->car : NULL;
+  return cons((node*)NODE_SCOPE, cons(n, body));
 }
 /* (:begin prog...) */