From 47f523cfb8b5d430d1105c608440200950183bb1 Mon Sep 17 00:00:00 2001
From: Araq <rumpf_a@web.de>
Date: Sun, 30 Oct 2011 21:27:02 +0100
Subject: [PATCH] bugfix: template t(f_no_Type) does not crash the compiler
 anymore in 'check' mode

---
 compiler/semtypes.nim | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/compiler/semtypes.nim b/compiler/semtypes.nim
index 3536a2a34..1d855d97f 100755
--- a/compiler/semtypes.nim
+++ b/compiler/semtypes.nim
@@ -529,6 +529,12 @@ proc semProcTypeNode(c: PContext, n, genericParams: PNode,
       #  debug a.sons[length-2][0][1]
     else:
       typ = nil
+      # consider: 
+      # template T(x)
+      # it's wrong, but the parser might not generate a fatal error (when in
+      # 'check' mode for example), so we need to check again here:
+      if unlikely(a.sons[length-1].kind == nkEmpty): continue
+      
     if a.sons[length-1].kind != nkEmpty:
       def = semExprWithType(c, a.sons[length-1]) 
       # check type compability between def.typ and typ: