if err != nil {
		t.Fatal(err)
	}
	defer conn.Close()
	addr := conn.LocalAddr()
	addrPort := addr.(*UDPAddr).AddrPort()
	buf := make([]byte, 8)

	allocs := testing.AllocsPerRun(1000, func() {
		_, _, err := conn.WriteMsgUDPAddrPort(buf, nil, addrPort)
		if err != nil {
			t.Fatal(err)
		}
		_, _, _, _, err = conn.ReadMsgUDPAddrPort(buf, nil)
		if err != nil {

	}
}

func TestParseAddrPort(t *testing.T) {
	tests := []struct {
		in      string
		want    AddrPort
		wantErr bool
	}{
		{in: "1.2.3.4:1234", want: AddrPort{mustIP("1.2.3.4"), 1234}},
		{in: "1.1.1.1:123456", wantErr: true},
		{in: "1.1.1.1:-123", wantErr: true},
		{in: "[::1]:1234", want: AddrPort{mustIP("::1"), 1234}},
		{in: "[1.2.3.4]:1234", wantErr: true},
		{in: "fe80::1:1234", wantErr: true},

}

// AddrPort is an IP and a port number.
type AddrPort struct {
	ip   Addr
	port uint16
}

// AddrPortFrom returns an [AddrPort] with the provided IP and port.
// It does not allocate.
func AddrPortFrom(ip Addr, port uint16) AddrPort { return AddrPort{ip: ip, port: port} }

// Addr returns p's IP address.
func (p AddrPort) Addr() Addr { return p.ip }

		}
	}
	if err != nil {
		// No sockaddr, so don't return UDPAddr.
		addr = nil
	}
	return n, addr, err
}

func (c *UDPConn) readFromAddrPort(b []byte) (n int, addr netip.AddrPort, err error) {
	var ip netip.Addr
	var port int
	switch c.fd.family {
	case syscall.AF_INET:
		var from syscall.SockaddrInet4
		n, err = c.fd.readFromInet4(b, &from)
		if err == nil {

	"f"
	"z"
)
`,
	},
}

func addImportFn(path ...string) func(*ast.File) bool {
	return func(f *ast.File) bool {
		fixed := false
		for _, p := range path {
			if !imports(f, p) {
				addImport(f, p)
				fixed = true
			}
		}
		return fixed
	}
}

func deleteImportFn(path string) func(*ast.File) bool {
	return func(f *ast.File) bool {
		if imports(f, path) {

	if got != want {
		t.Errorf("unexpected sort\n got: %s\nwant: %s\n", got, want)
	}
}

func TestAddrPortCompare(t *testing.T) {
	tests := []struct {
		a, b AddrPort
		want int
	}{
		{AddrPort{}, AddrPort{}, 0},
		{AddrPort{}, mustIPPort("1.2.3.4:80"), -1},

		{mustIPPort("1.2.3.4:80"), mustIPPort("1.2.3.4:80"), 0},
		{mustIPPort("[::1]:80"), mustIPPort("[::1]:80"), 0},

	IP   IP
	Port int
	Zone string // IPv6 scoped addressing zone
}

// AddrPort returns the [TCPAddr] a as a [netip.AddrPort].
//
// If a.Port does not fit in a uint16, it's silently truncated.
//
// If a is nil, a zero value is returned.
func (a *TCPAddr) AddrPort() netip.AddrPort {
	if a == nil {
		return netip.AddrPort{}
	}
	na, _ := netip.AddrFromSlice(a.IP)
	na = na.WithZone(a.Zone)

    inlining_test.go:102: not in expected set, but also inlinable: "bePutUint64"
    inlining_test.go:102: not in expected set, but also inlinable: "mask6"
    inlining_test.go:102: not in expected set, but also inlinable: "AddrPort.isZero"
    inlining_test.go:102: not in expected set, but also inlinable: "stringsLastIndexByte"
    inlining_test.go:102: not in expected set, but also inlinable: "Addr.isZero"

	// DiscoveryAddresses returns the external XDS (15012) address on the ingress gateway (or the NodePort address,
	// when in an environment that doesn't support LoadBalancer).
	DiscoveryAddresses() []netip.AddrPort
	// AddressesForPort returns the external address of the ingress gateway (or the NodePort address,
	// when in an environment that doesn't support LoadBalancer) for the given port.
	AddressesForPort(port int) ([]string, []int)

		if err != nil {
			return netip.AddrPort{}, err
		}
		addr = address.(netip.AddrPort)
	} else {
		name := types.NamespacedName{Name: eastWestIngressServiceName, Namespace: i.cfg.SystemNamespace}
		addr = i.CustomIngressFor(primary, name, eastWestIngressIstioLabel).DiscoveryAddresses()[0]
	}
	if !addr.IsValid() {
		return netip.AddrPort{}, fmt.Errorf("failed to get ingress IP for %s", primary.Name())
	}