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reflect: deprecate SliceHeader and StringHeader

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These are replaced by unsafe.String etc, which were added in Go 1.20.
Per https://go.dev/wiki/Deprecated, we must wait until Go 1.21
to mark them deprecated.

Fixes #56906.

Change-Id: I4198c3f3456e9e2031f6c7232842e187e6448892
Reviewed-on: https://go-review.googlesource.com/c/go/+/452762
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Russ Cox <rsc@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
Run-TryBot: Russ Cox <rsc@golang.org>
This commit is contained in:
Russ Cox 2022-11-22 10:24:11 -05:00 committed by Gopher Robot
parent 45eded3afd
commit 33d8cdeedc
2 changed files with 4 additions and 2 deletions
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2
api/next/56906.txt Normal file
View file

@ -0,0 +1,2 @@
pkg reflect, type SliceHeader //deprecated #56906
pkg reflect, type StringHeader //deprecated #56906

4
src/reflect/value.go
View file

@ -2743,7 +2743,7 @@ func (v Value) UnsafePointer() unsafe.Pointer {
// it references will not be garbage collected, so programs must keep
// a separate, correctly typed pointer to the underlying data.
//
// In new code, use unsafe.String or unsafe.StringData instead.
// Deprecated: Use unsafe.String or unsafe.StringData instead.
type StringHeader struct {
Data uintptr
Len int
@ -2756,7 +2756,7 @@ type StringHeader struct {
// it references will not be garbage collected, so programs must keep
// a separate, correctly typed pointer to the underlying data.
//
// In new code, use unsafe.Slice or unsafe.SliceData instead.
// Deprecated: Use unsafe.Slice or unsafe.SliceData instead.
type SliceHeader struct {
Data uintptr
Len int