From 3c0f01faa0125f8632951290ad1475e1d93b3b1a Mon Sep 17 00:00:00 2001
From: Andreas Rumpf <rumpf_a@web.de>
Date: Wed, 6 Mar 2019 14:22:12 +0100
Subject: fixes #10791

---
 compiler/semstmts.nim | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/compiler/semstmts.nim b/compiler/semstmts.nim
index 163a85895..859856e48 100644
--- a/compiler/semstmts.nim
+++ b/compiler/semstmts.nim
@@ -1189,6 +1189,9 @@ proc typeSectionRightSidePass(c: PContext, n: PNode) =
         incl a[2].flags, nfSem # bug #10548
     if sfExportc in s.flags and s.typ.kind == tyAlias:
       localError(c.config, name.info, "{.exportc.} not allowed for type aliases")
+    if tfBorrowDot in s.typ.flags and s.typ.kind != tyDistinct:
+      excl s.typ.flags, tfBorrowDot
+      localError(c.config, name.info, "only a 'distinct' type can borrow `.`")
     let aa = a.sons[2]
     if aa.kind in {nkRefTy, nkPtrTy} and aa.len == 1 and
        aa.sons[0].kind == nkObjectTy:
-- 
cgit 1.4.1-2-gfad0