From af70254c7b508b6658b50ec8b4fb9465a02acb3f Mon Sep 17 00:00:00 2001
From: Andreas Rumpf <rumpf_a@web.de>
Date: Mon, 4 Apr 2016 16:41:35 +0200
Subject: [PATCH] fixes #2006

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

diff --git a/compiler/sigmatch.nim b/compiler/sigmatch.nim
index 82f878932..377743de3 100644
--- a/compiler/sigmatch.nim
+++ b/compiler/sigmatch.nim
@@ -513,7 +513,7 @@ proc typeRangeRel(f, a: PType): TTypeRelation {.noinline.} =
 proc matchUserTypeClass*(c: PContext, m: var TCandidate,
                          ff, a: PType): TTypeRelation =
   var body = ff.skipTypes({tyUserTypeClassInst})
-  if c.inTypeClass > 20:
+  if c.inTypeClass > 4:
     localError(body.n[3].info, $body.n[3] & " too nested for type matching")
     return isNone