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io/fs: document when ErrClosed should be returned

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Pull ErrClosed out of the grouped var declaration so it can have its
own doc comment explaining that file system implementations should
return it when operations are attempted on a closed file.

Fixes #63918

Change-Id: I1fe2041c594ad6fd37e240e21fe9b3d4104daa46
Reviewed-on: https://go-review.googlesource.com/c/go/+/741446
Reviewed-by: Ian Lance Taylor <iant@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: David Chase <drchase@google.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Robert Griesemer <gri@google.com>
This commit is contained in:
kovan
2026-02-17 02:26:33 +01:00
committed by Gopher Robot
parent 8da2be3cd0
commit 703cc8abec
1 changed files with 4 additions and 1 deletions
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5
src/io/fs/fs.go
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@@ -155,9 +155,12 @@ var (
ErrPermission = errPermission() // "permission denied"
ErrExist = errExist() // "file already exists"
ErrNotExist = errNotExist() // "file does not exist"
ErrClosed = errClosed() // "file already closed"
)
// ErrClosed is returned when operations are attempted on a file that
// has already been closed, including when Close is called more than once.
var ErrClosed = errClosed()
func errInvalid() error { return oserror.ErrInvalid }
func errPermission() error { return oserror.ErrPermission }
func errExist() error { return oserror.ErrExist }