From bef7f726369d845dfbb376ee3531c028bef62498 Mon Sep 17 00:00:00 2001
From: Anatoly Galiulin <galiulin.anatoly@gmail.com>
Date: Mon, 27 Jun 2016 09:16:19 +0600
Subject: [PATCH] Accumulate penalties

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

diff --git a/compiler/sigmatch.nim b/compiler/sigmatch.nim
index ed5dd6ca13..70fbe73580 100644
--- a/compiler/sigmatch.nim
+++ b/compiler/sigmatch.nim
@@ -976,7 +976,7 @@ proc typeRel(c: var TCandidate, f, aOrig: PType, doBind = true): TTypeRelation =
         if x.sons[i].kind == tyGenericParam:
           internalError("wrong instantiated type!")
         elif typeRel(c, f.sons[i], x.sons[i]) <= isSubtype: return
-      c.inheritancePenalty = depth
+      c.inheritancePenalty += depth
       result = isGeneric
     else:
       let genericBody = f.sons[0]