//go:noescape
func maplen(unsafe.Pointer) int

// Len returns v's length.
// It panics if v's Kind is not Array, Chan, Map, Slice, or String.
func (v Value) Len() int {
	k := v.kind()
	switch k {
	case abi.Array:
		tt := (*arrayType)(unsafe.Pointer(v.typ()))
		return int(tt.Len)
	case abi.Chan:
		return chanlen(v.pointer())
	case abi.Map:
		return maplen(v.pointer())
	case abi.Slice:

// ResultChan implements Interface
func (w emptyWatch) ResultChan() <-chan Event {
	return chan Event(w)
}

// FakeWatcher lets you test anything that consumes a watch.Interface; threadsafe.
type FakeWatcher struct {
	result  chan Event
	stopped bool
	sync.Mutex
}

func NewFake() *FakeWatcher {
	return &FakeWatcher{
		result: make(chan Event),
	}
}

		m.s.RunComponentAsyncAndWait("auto serviceexport controller", func(_ <-chan struct{}) error {
			leaderelection.
				NewLeaderElectionMulticluster(options.SystemNamespace, m.serverID, leaderelection.ServiceExportController, m.revision, !configCluster, client).
				AddRunFunction(func(leaderStop <-chan struct{}) {
					serviceExportController := newAutoServiceExportController(autoServiceExportOptions{

			}
			haveDefault = true
			if c.Chan.IsValid() {
				panic("reflect.Select: default case has Chan value")
			}
			if c.Send.IsValid() {
				panic("reflect.Select: default case has Send value")
			}

		case SelectSend:
			ch := c.Chan
			if !ch.IsValid() {
				break
			}
			ch.mustBe(Chan)
			ch.mustBeExported()
			tt := (*chanType)(unsafe.Pointer(ch.typ()))

	prev      <-chan *reporterState // 1-buffered
}

// newSequencer returns a sequencer that allows concurrent tasks up to maxWeight
// and writes tasks' output to out and err.
func newSequencer(maxWeight int64, out, err io.Writer) *sequencer {
	sem := semaphore.NewWeighted(maxWeight)
	prev := make(chan *reporterState, 1)
	prev <- &reporterState{out: out, err: err}

	c := make(chan struct{})
	go func() {
		wg.Wait()
		c <- struct{}{}
	}()
	select {
	case <-c:
		return true
	case <-time.After(timeout):
		return false
	}
}

func TestSendPushesManyPushes(t *testing.T) {
	stopCh := make(chan struct{})
	defer close(stopCh)

	semaphore := make(chan struct{}, 2)
	queue := NewPushQueue()
	defer queue.ShutDown()

	var wg sync.WaitGroup
	done := make(chan bool)

	// Create a goroutine blocked before tracing.
	wg.Add(1)
	go func() {
		<-done
		wg.Done()
	}()

	// Create a goroutine blocked in syscall before tracing.
	rp, wp, err := os.Pipe()
	if err != nil {
		log.Fatalf("failed to create pipe: %v", err)
	}
	defer func() {
		rp.Close()
		wp.Close()
	}()
	wg.Add(1)
	go func() {
		var tmp [1]byte

		// this is programmer error, but it can be hard to debug
		return fmt.Errorf("unable to add %q because it was already registered by: %s", name, postStartHook.originatingStack)
	}

	// done is closed when the poststarthook is finished.  This is used by the health check to be able to indicate
	// that the poststarthook is finished
	done := make(chan struct{})

	if handler == nil {
		return nil, ErrUnknownHandler
	}

	var requests chan []byte
	var responses chan Response
	if handler.InCapacity > 0 {
		requests = make(chan []byte, handler.InCapacity)
	}
	if handler.OutCapacity > 0 {
		responses = make(chan Response, handler.OutCapacity)
	} else {
		responses = make(chan Response, 1)
	}

	cl, err := c.newMuxClient(ctx)
	if err != nil {

	}
	return 0
}

func (t *Type) Common() *Type {
	return t
}

type ChanDir int

const (
	RecvDir    ChanDir = 1 << iota         // <-chan
	SendDir                                // chan<-
	BothDir            = RecvDir | SendDir // chan
	InvalidDir ChanDir = 0
)

// ChanType represents a channel type
type ChanType struct {
	Type
	Elem *Type
	Dir  ChanDir
}