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doc: correct release notes for non-string map keys in encoding/json 

The original draft mentioned support for json.Marshaler, but that's
not the case.  JSON supports only string keys (not arbitrary JSON)
so only encoding.TextMarshaller is supported.

Change-Id: I7788fc23ac357da88e92aa0ca17b513260840cee
Reviewed-on: https://go-review.googlesource.com/23529
Reviewed-by: Andrew Gerrand <adg@golang.org>
This commit is contained in:
Augusto Roman 2016-05-28 16:59:28 -07:00 committed by Andrew Gerrand
parent 1739657513
commit 4e01c132d0
1 changed files with 5 additions and 13 deletions
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18
doc/go1.7.html
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@ -33,7 +33,7 @@ Go 1.7 has NOT yet been released.
By our regular schedule, it is expected some time in August 2016.
</i>
</p>
<h2 id="introduction">Introduction to Go 1.7</h2>
<p>
@ -664,23 +664,15 @@ maps using keys with string types.
Go 1.7 adds support for maps using keys with integer types:
the encoding uses a quoted decimal representation as the JSON key.
Go 1.7 also adds support for encoding maps using non-string keys that implement
<code>MarshalJSON</code>
(see
<a href="/pkg/encoding/json/#Marshaler"><code>Marshaler</code></a>)
or
<code>MarshalText</code>
the <code>MarshalText</code>
(see
<a href="/pkg/encoding/#TextMarshaler"><code>encoding.TextMarshaler</code></a>)
methods,
method,
as well as support for decoding maps using non-string keys that implement
<code>UnmarshalJSON</code>
(see
<a href="/pkg/encoding/json/#Unmarshaler"><code>Unmarshaler</code></a>)
or
<code>UnmarshalText</code>
the <code>UnmarshalText</code>
(see
<a href="/pkg/encoding/#TextUnmarshaler"><code>encoding.TextUnmarshaler</code></a>)
methods.
method.
These methods are ignored for keys with string types in order to preserve
the encoding and decoding used in earlier versions of Go.
</p>