From 44813969132e0bc07f4b1e8b1445032b194ef374 Mon Sep 17 00:00:00 2001
From: John Wiegley <johnw@newartisans.com>
Date: Fri, 30 Oct 2009 18:02:10 -0400
Subject: Added an assert for op_t::left()

---
 src/op.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/op.h')

diff --git a/src/op.h b/src/op.h
index c79ed3f6..7690d6bc 100644
--- a/src/op.h
+++ b/src/op.h
@@ -192,6 +192,7 @@ public:
   }
 
   ptr_op_t& left() {
+    assert(kind > TERMINALS || kind == IDENT);
     return left_;
   }
   const ptr_op_t& left() const {
-- 
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