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hash: document that Clone may only return ErrUnsupported or a nil error

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Updates #69521

Change-Id: I6a6a6964ce384a80c4c89efe67c260dc6e9ed6c8
Reviewed-on: https://go-review.googlesource.com/c/go/+/685235
Auto-Submit: Filippo Valsorda <filippo@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Austin Clements <austin@google.com>
This commit is contained in:
Filippo Valsorda
2025-07-01 11:51:37 +02:00
committed by Gopher Robot
parent b325151453
commit dd687c3860
1 changed files with 2 additions and 1 deletions
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3
src/hash/hash.go
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@@ -64,7 +64,8 @@ type Hash64 interface {
// unless GOFIPS140=v1.0.0 is set.
//
// If a hash can only determine at runtime if it can be cloned (e.g. if it wraps
// another hash), it may return an error wrapping [errors.ErrUnsupported].
// another hash), Clone may return an error wrapping [errors.ErrUnsupported].
// Otherwise, Clone must always return a nil error.
type Cloner interface {
Hash
Clone() (Cloner, error)