Method Walk

command.go:587–600

Walk visits cmd and every descendant. If fn returns a non-nil error, the walk terminates and the error is returned to the caller.

(fn func(*Command) error)

// Walk visits cmd and every descendant. If fn returns a non-nil error, the
// walk terminates and the error is returned to the caller.
func (cmd *Command) Walk(fn func(*Command) error) error {
	if fn == nil {
		return nil
	}
	if err := fn(cmd); err != nil {
		return err
	}
	for _, sub := range cmd.Commands {
		if err := sub.Walk(fn); err != nil {
			return err
		}
	}
	return nil
}

// Count returns the num of occurrences of this flag
func (cmd *Command) Count(name string) int {