doc/go1.18: document union element restriction

For #47694

Change-Id: I9af871a4a45b002e72629904011aac8f076617f1
Reviewed-on: https://go-review.googlesource.com/c/go/+/372974
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
This commit is contained in:
Ian Lance Taylor 2021-12-16 17:54:27 -08:00
parent 3c495839fe
commit 529939072e

View file

@ -103,6 +103,11 @@ Do not send CLs removing the interior tags from such phrases.
embedding a type parameter in an interface type is not permitted.
Whether these will ever be permitted is unclear at present.
</li>
<li>
A union element with more than one term may not contain an
interface type with a non-empty method set. Whether this will
ever be permitted is unclear at present.
</li>
</ul>
</p>