From cfba237d142a5ae53d593d69d6e6a560cd21863f Mon Sep 17 00:00:00 2001
From: Andreas Rumpf <rumpf_a@web.de>
Date: Thu, 8 Oct 2020 15:28:23 +0200
Subject: [PATCH] fixes #15510 (#15523)

---
 compiler/sempass2.nim | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/compiler/sempass2.nim b/compiler/sempass2.nim
index f0d6c6c7af..5eb464bb80 100644
--- a/compiler/sempass2.nim
+++ b/compiler/sempass2.nim
@@ -1065,7 +1065,10 @@ proc track(tracked: PEffects, n: PNode) =
     for i in 0..<n.len:
       track(tracked, n[i])
       if tracked.owner.kind != skMacro:
-        createTypeBoundOps(tracked, n[i].typ, n.info)
+        if n[i].kind == nkExprColonExpr:
+          createTypeBoundOps(tracked, n[i][0].typ, n.info)
+        else:
+          createTypeBoundOps(tracked, n[i].typ, n.info)
       checkForSink(tracked.config, tracked.owner, n[i])
   of nkPragmaBlock:
     let pragmaList = n[0]