From 1555f41796e3da42c269329884d1847ed2a3854b Mon Sep 17 00:00:00 2001
From: Araq <rumpf_a@web.de>
Date: Wed, 1 Jul 2015 13:35:58 +0200
Subject: [PATCH] fixes #3032

---
 compiler/sempass2.nim | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/compiler/sempass2.nim b/compiler/sempass2.nim
index 0358ed51a..3431ee2ff 100644
--- a/compiler/sempass2.nim
+++ b/compiler/sempass2.nim
@@ -753,7 +753,7 @@ proc track(tracked: PEffects, n: PNode) =
     for i in 1 .. <len(n):
       let x = n.sons[i]
       track(tracked, x)
-      if sfDiscriminant in x.sons[0].sym.flags:
+      if x.sons[0].kind == nkSym and sfDiscriminant in x.sons[0].sym.flags:
         addDiscriminantFact(tracked.guards, x)
     setLen(tracked.guards, oldFacts)
   of nkPragmaBlock: