fixes #10791

nim-lang · Mar 6, 2019 · 3c0f01f · 3c0f01f
1 parent 32c9ca6
commit 3c0f01f
Showing 1 changed file with 3 additions and 0 deletions.
diff --git 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: