From 48c88f1b1bac1ef4fc81246a7f31933f8f922706 Mon Sep 17 00:00:00 2001
From: Ian Lance Taylor <iant@golang.org>
Date: Wed, 14 Jul 2021 14:46:09 -0700
Subject: reflect: add Value.CanConvert

For #395
For #46746

Change-Id: I4bfc094cf1cecd27ce48e31f92384cf470f371a6
Reviewed-on: https://go-review.googlesource.com/c/go/+/334669
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
---
 doc/go1.17.html | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'doc')

diff --git a/doc/go1.17.html b/doc/go1.17.html
index b31006fe65..7739d1c62e 100644
--- a/doc/go1.17.html
+++ b/doc/go1.17.html
@@ -989,6 +989,18 @@ func Foo() bool {
 
 <dl id="reflect"><dt><a href="/pkg/reflect/">reflect</a></dt>
   <dd>
+    <p><!-- CL 334669 -->
+      The new
+      <a href="/pkg/reflect/#Value.CanConvert"><code>Value.CanConvert</code></a>
+      method reports whether a value can be converted to a type.
+      This may be used to avoid a panic when converting a slice to an
+      array pointer type if the slice is too short.
+      Previously it was sufficient to use
+      <a href="/pkg/reflect/#Type.ConvertibleTo"><code>Type.ConvertibleTo</code></a>
+      for this, but the newly permitted conversion from slice to array
+      pointer type can panic even if the types are convertible.
+    </p>
+
     <p><!-- CL 266197 -->
       The new
       <a href="/pkg/reflect/#StructField.IsExported"><code>StructField.IsExported</code></a>
-- 
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