From 41a2a9f00bd7e823223ce4b0830d6c9d8d6bc294 Mon Sep 17 00:00:00 2001
From: Yuriy Glukhov <yuriy.glukhov@gmail.com>
Date: Thu, 6 Aug 2015 22:19:33 +0300
Subject: [PATCH] Fixes #3185

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

diff --git a/compiler/semexprs.nim b/compiler/semexprs.nim
index af6919d972..0e9b9ae5f1 100644
--- a/compiler/semexprs.nim
+++ b/compiler/semexprs.nim
@@ -2260,7 +2260,7 @@ proc semExpr(c: PContext, n: PNode, flags: TExprFlags = {}): PNode =
     result = semStaticStmt(c, n)
   of nkDefer:
     n.sons[0] = semExpr(c, n.sons[0])
-    if not n.sons[0].typ.isEmptyType:
+    if not n.sons[0].typ.isEmptyType and not implicitlyDiscardable(n.sons[0]):
       localError(n.info, errGenerated, "'defer' takes a 'void' expression")
     #localError(n.info, errGenerated, "'defer' not allowed in this context")
   else: