From 2f17be9c22d7bd4c31433d6a81ac38982e0e6c1b Mon Sep 17 00:00:00 2001
From: Araq <rumpf_a@web.de>
Date: Wed, 22 Nov 2017 23:18:26 +0100
Subject: improve error message for bug #6788

---
 compiler/semtypes.nim | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/compiler/semtypes.nim b/compiler/semtypes.nim
index b2c6efc37..9682a33d5 100644
--- a/compiler/semtypes.nim
+++ b/compiler/semtypes.nim
@@ -235,7 +235,10 @@ proc semRange(c: PContext, n: PNode, prev: PType): PType =
           n.sons[1].floatVal < 0.0:
         incl(result.flags, tfNeedsInit)
     else:
-      localError(n.sons[0].info, errRangeExpected)
+      if n[1].kind == nkInfix and considerQuotedIdent(n[1][0]).s == "..<":
+        localError(n[0].info, "range types need to be constructed with '..', '..<' is not supported")
+      else:
+        localError(n.sons[0].info, errRangeExpected)
       result = newOrPrevType(tyError, prev, c)
   else:
     localError(n.info, errXExpectsOneTypeParam, "range")
-- 
cgit 1.4.1-2-gfad0