a919b76037
As proposed in Issue #29934, update errors produced by the os package to work with errors.Is sentinel tests. For example, errors.Is(err, os.ErrPermission) is equivalent to os.IsPermission(err) with added unwrapping support. Move the definition for os.ErrPermission and others into the syscall package. Add an Is method to syscall.Errno and others. Add an Unwrap method to os.PathError and others. Updates #30322 Updates #29934 Change-Id: I95727d26c18a5354c720de316dff0bffc04dd926 Reviewed-on: https://go-review.googlesource.com/c/go/+/163058 Reviewed-by: Marcel van Lohuizen <mpvl@golang.org> |
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