tree 39470a159224192439d7c80aaa09e88007faae7a
parent 275807eb96e57bebbc74bdb8bdec427e2da2af00
author Damien Neil <dneil@google.com> 1549403163 -0800
committer Damien Neil <dneil@google.com> 1549564087 +0000

error-values.md: change As to match on assignability

Change As to consider assignability rather than type equivalence, allowing
it to convert an error to an interface type. e.g.,

	var to interface{ Timeout() bool }
	if errors.As(err, &to) && to.Timeout() { ... }

Change-Id: I3908ab5dc61e5c9393e6fabd1b1cbdb7945611a1
Reviewed-on: https://go-review.googlesource.com/c/161200
Reviewed-by: Jonathan Amsterdam <jba@google.com>