From 30ab7e6bdd779b6ef6c9a21507b6cf18f56024a3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Arne=20D=C3=B6ring?= <arne.doering@gmx.net>
Date: Sat, 23 Feb 2019 10:58:40 +0100
Subject: [PATCH] fixes #10678 (#10681)

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

diff --git a/compiler/semtypes.nim b/compiler/semtypes.nim
index d4fcea0b42..e717c6e07d 100644
--- a/compiler/semtypes.nim
+++ b/compiler/semtypes.nim
@@ -145,7 +145,7 @@ proc semEnum(c: PContext, n: PNode, prev: PType): PType =
 
 proc semSet(c: PContext, n: PNode, prev: PType): PType =
   result = newOrPrevType(tySet, prev, c)
-  if sonsLen(n) == 2:
+  if sonsLen(n) == 2 and n.sons[1].kind != nkEmpty:
     var base = semTypeNode(c, n.sons[1], nil)
     addSonSkipIntLit(result, base)
     if base.kind in {tyGenericInst, tyAlias, tySink}: base = lastSon(base)