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doc/go1.18: add docs on FieldByIndexErr

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From:
https://go-review.googlesource.com/c/go/+/357962/

Updates #47694

Change-Id: I2d43dcbd28c03457b55eada26e87f7710a113b0c
Reviewed-on: https://go-review.googlesource.com/c/go/+/368364
Trust: Jeremy Faller <jeremy@golang.org>
Run-TryBot: Jeremy Faller <jeremy@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Jeremy Faller 2021-12-01 17:03:15 -05:00
parent e533b5793f
commit 48e4284e55
1 changed files with 4 additions and 1 deletions
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@ -459,7 +459,10 @@ proposal</a>.
</p>
<p><!-- CL 357962 -->
TODO: <a href="https://golang.org/cl/357962">https://golang.org/cl/357962</a>: add FieldByIndexErr
<a href="/pkg/reflect#Value.FieldByIndexErr"><code>Value.FieldByIndexErr</code></a>
has been added to avoid the panic that occurs in
<a href="/pkg/reflect#Value.FieldByIndex"><code>Value.FieldByIndex</code></a>
when stepping through a nil pointer to an embedded struct.
</p>
</dd>
</dl><!-- reflect -->