Function Mark

markers/markers.go:227–233

Mark creates an explicit mark for the given error, using the same mark as some reference error. Note: if any of the error types has been migrated from a previous package location or a different type, ensure that RegisterTypeMigration() was called prior to Mark().

(err error, reference error)

// package location or a different type, ensure that
// RegisterTypeMigration() was called prior to Mark().
func Mark(err error, reference error) error {
	if err == nil {
		return nil
	}
	refMark := getMark(reference)
	return &withMark{cause: err, mark: refMark}
}

// withMark carries an explicit mark.
type withMark struct {