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encoding/json/jsontext: use bytes.Buffer.AvailableBuffer

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This logic was added in October, 2021:

	0b3bd4e1ed

before the introduction of bytes.Buffer.AvailableBuffer in March, 2023.

	https://go.dev/cl/474635

Updates #71845

Change-Id: I96800e1ba8fce15cc78316779db4ddcd4fe1d510
Reviewed-on: https://go-review.googlesource.com/c/go/+/685136
Reviewed-by: Damien Neil <dneil@google.com>
Auto-Submit: Joseph Tsai <joetsai@digital-static.net>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
This commit is contained in:
Joe Tsai 2025-06-24 19:00:23 -07:00 • committed by Gopher Robot
parent 6bd9944c9a
commit 86fca3dcb6
1 changed files with 1 additions and 1 deletions
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2
src/encoding/json/jsontext/encode.go
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@ -114,7 +114,7 @@ func (e *encoderState) reset(b []byte, w io.Writer, opts ...Options) {
e.state.reset() e.state.reset()
e.encodeBuffer = encodeBuffer{Buf: b, wr: w, bufStats: e.bufStats} e.encodeBuffer = encodeBuffer{Buf: b, wr: w, bufStats: e.bufStats}
if bb, ok := w.(*bytes.Buffer); ok && bb != nil { if bb, ok := w.(*bytes.Buffer); ok && bb != nil {
e.Buf = bb.Bytes()[bb.Len():] // alias the unused buffer of bb e.Buf = bb.AvailableBuffer() // alias the unused buffer of bb
} }
opts2 := jsonopts.Struct{} // avoid mutating e.Struct in case it is part of opts opts2 := jsonopts.Struct{} // avoid mutating e.Struct in case it is part of opts
opts2.Join(opts...) opts2.Join(opts...)