parse.y: p->nvar (numbered argument index list) may be NULL.

2026-06-08 16:11:16 +00:00 · 2022-01-10 15:44:15 +09:00
parent 8c7b995962
commit 5dfbfb3ecd
2 changed files with 1009 additions and 1007 deletions
@@ -712,9 +712,10 @@ new_cvar(parser_state *p, mrb_sym sym)
 static node*
 new_nvar(parser_state *p, int num)
 {
-  int nvars = intn(p->nvars->car);
-
-  p->nvars->car = nint(nvars > num ? nvars : num);
+  if (p->nvars) {
+    int nvars = intn(p->nvars->car);
+    p->nvars->car = nint(nvars > num ? nvars : num);
+  }
  return cons((node*)NODE_NVAR, nint(num));
 }