Function WithType

errortypes.go:105–113

WithType is responsible for annotating an already existing error so that it also satisfies that of a ConstError. The resultant error returned should satisfy Is(err, errType). If err is nil then a nil error will also be returned. Now with Go's Is, As and Unwrap support it no longer makes sense to Wr

(err error, errType ConstError)

// WithType aims to solve some of the usefulness of Wrap with the ability to
// make a pre-existing error also satisfy a ConstError type.
func WithType(err error, errType ConstError) error {
	if err == nil {
		return nil
	}
	return &errWithType{
		error:   err,
		errType: errType,
	}
}

// Timeoutf returns an error which satisfies Is(err, Timeout) and the Locationer
// interface.