From be4748eb5728f2fe9fdfa2c56f6abbd617e55a83 Mon Sep 17 00:00:00 2001
From: Andreas Rumpf <rumpf_a@web.de>
Date: Fri, 26 Aug 2016 14:57:59 +0200
Subject: do not crash on #3928

---
 compiler/sigmatch.nim | 1 +
 1 file changed, 1 insertion(+)

(limited to 'compiler')

diff --git a/compiler/sigmatch.nim b/compiler/sigmatch.nim
index 949d4dc19..7cdaa197d 100644
--- a/compiler/sigmatch.nim
+++ b/compiler/sigmatch.nim
@@ -1312,6 +1312,7 @@ proc localConvMatch(c: PContext, m: var TCandidate, f, a: PType,
   call.add(arg.copyTree)
   result = c.semExpr(c, call)
   if result != nil:
+    if result.typ == nil: return nil
     # resulting type must be consistent with the other arguments:
     var r = typeRel(m, f.sons[0], result.typ)
     if r < isGeneric: return nil
-- 
cgit 1.4.1-2-gfad0