dial.go
func (d *Dialer) subDialerForAddr(raddr ma.Multiaddr) transport.Dialer {
	for _, pd := range d.Dialers {
		if pd.Matches(raddr) {
			return pd
		}
	}

	if d.fallback.Matches(raddr) {
		return d.fallback
	}

	return nil
}
func (d *Dialer) subDialerForAddr(raddr ma.Multiaddr) transport.Dialer {
	for _, pd := range d.Dialers {
		if pd.Matches(raddr) {
			return pd
		}
	}

	if d.fallback.Matches(raddr) {
		return d.fallback
	}

	return nil
}
func ( d * Dialer ) subDialerForAddr ( raddr ma . Multiaddr ) transport . Dialer { for _ , pd := range d . Dialers { if pd . Matches ( raddr ) { return pd } } if d . fallback . Matches ( raddr ) { return d . fallback } return nil }
// returns dialer that can dial the given address
returns dialer that can dial the given address