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encoding/json: clarify the map's key type for Unmarshal

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While here, also fix doc link for encoding.TextMarshaler.

Fixes #67495

Change-Id: Ia2a674c5c35b5a849ce8f5eef3d34d165b3195b6
Reviewed-on: https://go-review.googlesource.com/c/go/+/593335
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
Reviewed-by: David Chase <drchase@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
This commit is contained in:
Jes Cok 2024-06-18 23:43:21 +08:00 committed by Gopher Robot
parent e9a306e004
commit 72e2220b50
2 changed files with 2 additions and 3 deletions
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3
src/encoding/json/decode.go
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@ -73,8 +73,7 @@ import (
// use. If the map is nil, Unmarshal allocates a new map. Otherwise Unmarshal
// reuses the existing map, keeping existing entries. Unmarshal then stores
// key-value pairs from the JSON object into the map. The map's key type must
// either be any string type, an integer, implement [json.Unmarshaler], or
// implement [encoding.TextUnmarshaler].
// either be any string type, an integer, or implement [encoding.TextUnmarshaler].
//
// If the JSON-encoded data contain a syntax error, Unmarshal returns a [SyntaxError].
//

2
src/encoding/json/encode.go
View File

@ -141,7 +141,7 @@ import (
// are sorted and used as JSON object keys by applying the following rules,
// subject to the UTF-8 coercion described for string values above:
// - keys of any string type are used directly
// - [encoding.TextMarshalers] are marshaled
// - keys that implement [encoding.TextMarshaler] are marshaled
// - integer keys are converted to strings
//
// Pointer values encode as the value pointed to.