diff options
| author | Russ Cox <rsc@golang.org> | 2015-07-14 21:32:47 -0400 |
|---|---|---|
| committer | Russ Cox <rsc@golang.org> | 2015-07-15 05:51:02 +0000 |
| commit | 749b391c55b0139910d86ac0f8a0c42957e01d1c (patch) | |
| tree | 45da770d6adc365254497daa935cf93381419a9c /src/encoding/json/decode.go | |
| parent | 2d25318f086fd7583c261f3b440a85dced2b63b4 (diff) | |
| download | go-749b391c55b0139910d86ac0f8a0c42957e01d1c.tar.xz | |
encoding/json: document and test overwrite of slice, map during Unmarshal
Fixes #8837.
Change-Id: Iaaecbb0b324004cb74b16b764126b01315e6a16e
Reviewed-on: https://go-review.googlesource.com/12209
Reviewed-by: Andrew Gerrand <adg@golang.org>
Diffstat (limited to 'src/encoding/json/decode.go')
| -rw-r--r-- | src/encoding/json/decode.go | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/encoding/json/decode.go b/src/encoding/json/decode.go index 02deac4c9f..530e8521dc 100644 --- a/src/encoding/json/decode.go +++ b/src/encoding/json/decode.go @@ -48,6 +48,13 @@ import ( // map[string]interface{}, for JSON objects // nil for JSON null // +// To unmarshal a JSON array into a slice, Unmarshal resets the slice to nil +// and then appends each element to the slice. +// +// To unmarshal a JSON object into a map, Unmarshal replaces the map +// with an empty map and then adds key-value pairs from the object to +// the map. +// // If a JSON value is not appropriate for a given target type, // or if a JSON number overflows the target type, Unmarshal // skips that field and completes the unmarshalling as best it can. |