From 75cca15c6513da5ef8da1117160e882b0f0f1c1b Mon Sep 17 00:00:00 2001
From: Anatoly Galiulin <galiulin.anatoly@gmail.com>
Date: Fri, 24 Jun 2016 15:22:22 +0600
Subject: [PATCH] Speedup generic relations detection

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

diff --git a/compiler/sigmatch.nim b/compiler/sigmatch.nim
index acbf7d426..ed5dd6ca1 100644
--- a/compiler/sigmatch.nim
+++ b/compiler/sigmatch.nim
@@ -970,7 +970,7 @@ proc typeRel(c: var TCandidate, f, aOrig: PType, doBind = true): TTypeRelation =
       # simply no match for now:
       discard
     elif x.kind == tyGenericInst and
-          isGenericSubtype(x, f, depth) and
+          ((f.sons[0] == x.sons[0]) or isGenericSubtype(x, f, depth)) and
           (sonsLen(x) - 1 == sonsLen(f)):
       for i in countup(1, sonsLen(f) - 1):
         if x.sons[i].kind == tyGenericParam: