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moby--moby/errdefs/helpers.go
Daniel Nephin 4f0d95fa6e Add canonical import comment
Signed-off-by: Daniel Nephin <dnephin@docker.com>
2018-02-05 16:51:57 -05:00

240 lines
4.8 KiB
Go

package errdefs // import "github.com/docker/docker/errdefs"
import "context"
type errNotFound struct{ error }
func (errNotFound) NotFound() {}
func (e errNotFound) Cause() error {
return e.error
}
// NotFound is a helper to create an error of the class with the same name from any error type
func NotFound(err error) error {
if err == nil {
return nil
}
return errNotFound{err}
}
type errInvalidParameter struct{ error }
func (errInvalidParameter) InvalidParameter() {}
func (e errInvalidParameter) Cause() error {
return e.error
}
// InvalidParameter is a helper to create an error of the class with the same name from any error type
func InvalidParameter(err error) error {
if err == nil {
return nil
}
return errInvalidParameter{err}
}
type errConflict struct{ error }
func (errConflict) Conflict() {}
func (e errConflict) Cause() error {
return e.error
}
// Conflict is a helper to create an error of the class with the same name from any error type
func Conflict(err error) error {
if err == nil {
return nil
}
return errConflict{err}
}
type errUnauthorized struct{ error }
func (errUnauthorized) Unauthorized() {}
func (e errUnauthorized) Cause() error {
return e.error
}
// Unauthorized is a helper to create an error of the class with the same name from any error type
func Unauthorized(err error) error {
if err == nil {
return nil
}
return errUnauthorized{err}
}
type errUnavailable struct{ error }
func (errUnavailable) Unavailable() {}
func (e errUnavailable) Cause() error {
return e.error
}
// Unavailable is a helper to create an error of the class with the same name from any error type
func Unavailable(err error) error {
return errUnavailable{err}
}
type errForbidden struct{ error }
func (errForbidden) Forbidden() {}
func (e errForbidden) Cause() error {
return e.error
}
// Forbidden is a helper to create an error of the class with the same name from any error type
func Forbidden(err error) error {
if err == nil {
return nil
}
return errForbidden{err}
}
type errSystem struct{ error }
func (errSystem) System() {}
func (e errSystem) Cause() error {
return e.error
}
// System is a helper to create an error of the class with the same name from any error type
func System(err error) error {
if err == nil {
return nil
}
return errSystem{err}
}
type errNotModified struct{ error }
func (errNotModified) NotModified() {}
func (e errNotModified) Cause() error {
return e.error
}
// NotModified is a helper to create an error of the class with the same name from any error type
func NotModified(err error) error {
if err == nil {
return nil
}
return errNotModified{err}
}
type errAlreadyExists struct{ error }
func (errAlreadyExists) AlreadyExists() {}
func (e errAlreadyExists) Cause() error {
return e.error
}
// AlreadyExists is a helper to create an error of the class with the same name from any error type
func AlreadyExists(err error) error {
if err == nil {
return nil
}
return errAlreadyExists{err}
}
type errNotImplemented struct{ error }
func (errNotImplemented) NotImplemented() {}
func (e errNotImplemented) Cause() error {
return e.error
}
// NotImplemented is a helper to create an error of the class with the same name from any error type
func NotImplemented(err error) error {
if err == nil {
return nil
}
return errNotImplemented{err}
}
type errUnknown struct{ error }
func (errUnknown) Unknown() {}
func (e errUnknown) Cause() error {
return e.error
}
// Unknown is a helper to create an error of the class with the same name from any error type
func Unknown(err error) error {
if err == nil {
return nil
}
return errUnknown{err}
}
type errCancelled struct{ error }
func (errCancelled) Cancelled() {}
func (e errCancelled) Cause() error {
return e.error
}
// Cancelled is a helper to create an error of the class with the same name from any error type
func Cancelled(err error) error {
if err == nil {
return nil
}
return errCancelled{err}
}
type errDeadline struct{ error }
func (errDeadline) DeadlineExceeded() {}
func (e errDeadline) Cause() error {
return e.error
}
// Deadline is a helper to create an error of the class with the same name from any error type
func Deadline(err error) error {
if err == nil {
return nil
}
return errDeadline{err}
}
type errDataLoss struct{ error }
func (errDataLoss) DataLoss() {}
func (e errDataLoss) Cause() error {
return e.error
}
// DataLoss is a helper to create an error of the class with the same name from any error type
func DataLoss(err error) error {
if err == nil {
return nil
}
return errDataLoss{err}
}
// FromContext returns the error class from the passed in context
func FromContext(ctx context.Context) error {
e := ctx.Err()
if e == nil {
return nil
}
if e == context.Canceled {
return Cancelled(e)
}
if e == context.DeadlineExceeded {
return Deadline(e)
}
return Unknown(e)
}