diff options
Diffstat (limited to 'src/pkg/os/error_posix.go')
| -rw-r--r-- | src/pkg/os/error_posix.go | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/src/pkg/os/error_posix.go b/src/pkg/os/error_posix.go index 1685c1f21..81b626aec 100644 --- a/src/pkg/os/error_posix.go +++ b/src/pkg/os/error_posix.go @@ -9,21 +9,36 @@ package os import "syscall" func isExist(err error) bool { - if pe, ok := err.(*PathError); ok { + switch pe := err.(type) { + case nil: + return false + case *PathError: + err = pe.Err + case *LinkError: err = pe.Err } return err == syscall.EEXIST || err == ErrExist } func isNotExist(err error) bool { - if pe, ok := err.(*PathError); ok { + switch pe := err.(type) { + case nil: + return false + case *PathError: + err = pe.Err + case *LinkError: err = pe.Err } return err == syscall.ENOENT || err == ErrNotExist } func isPermission(err error) bool { - if pe, ok := err.(*PathError); ok { + switch pe := err.(type) { + case nil: + return false + case *PathError: + err = pe.Err + case *LinkError: err = pe.Err } return err == syscall.EACCES || err == syscall.EPERM || err == ErrPermission |