// should be able to get the last value via Nbrecv
	if x, selected := c.Nbrecv(); x != 1 || !selected {
		println("testasync2: Nbrecv did not get 1, true:", x, selected, c.Impl())
		failed = true
	}

	test1(c)
}

func testasync4(c Chan) {
	// should be able to get the last value via Nbrecv2
	if x, ok, selected := c.Nbrecv2(); x != 1 || !ok || !selected {

func fboth[T any](chan T) {}
func frecv[T any](<-chan T) {}
func fsend[T any](chan<- T) {}

func _() {
	var both chan int
	var recv <-chan int
	var send chan<-int

	fboth(both)
	fboth(recv /* ERROR "cannot use" */ )
	fboth(send /* ERROR "cannot use" */ )

	frecv(both)
	frecv(recv)
	frecv(send /* ERROR "cannot use" */ )

	fsend(both)
	fsend(recv /* ERROR "cannot use" */)
	fsend(send)
}

	"golang.org/x/tools/internal/aliases"
)

// ReceiverNamed returns the named type (if any) associated with the
// type of recv, which may be of the form N or *N, or aliases thereof.
// It also reports whether a Pointer was present.
func ReceiverNamed(recv *types.Var) (isPtr bool, named *types.Named) {
	t := recv.Type()
	if ptr, ok := aliases.Unalias(t).(*types.Pointer); ok {
		isPtr = true
		t = ptr.Elem()
	}

func NewMethodType(sig *types.Type, recv *types.Type) *types.Type {
	nrecvs := 0
	if recv != nil {
		nrecvs++
	}

	// TODO(mdempsky): Move this function to types.
	// TODO(mdempsky): Preserve positions, names, and package from sig+recv.

	params := make([]*types.Field, nrecvs+sig.NumParams())
	if recv != nil {
		params[0] = types.NewField(base.Pos, nil, recv)
	}
	for i, param := range sig.Params() {

		case ir.OSEND:
			n := n.(*ir.SendStmt)
			i = nsends
			nsends++
			c = n.Chan
			elem = n.Value
		case ir.OSELRECV2:
			n := n.(*ir.AssignListStmt)
			nrecvs++
			i = ncas - nrecvs
			recv := n.Rhs[0].(*ir.UnaryExpr)
			c = recv.X
			elem = n.Lhs[0]
		}

		casorder[i] = cas

		setField := func(f string, val ir.Node) {

	if nsends+nrecvs == 0 {
		return dflt, false
	}

	// Compact sel and orig if necessary.
	if nsends+nrecvs < len(cases) {
		copy(sel[nsends:], sel[len(cases)-nrecvs:])
		copy(orig[nsends:], orig[len(cases)-nrecvs:])
	}

	order := make([]uint16, 2*(nsends+nrecvs))
	var pc0 *uintptr
	if raceenabled {
		pcs := make([]uintptr, nsends+nrecvs)
		for i := range pcs {
			selectsetpc(&pcs[i])
		}

		exprFmt(n.X, s, nprec)
		fmt.Fprintf(s, " %v ", n.Op())
		exprFmt(n.Y, s, nprec+1)

	case OSEND:
		n := n.(*SendStmt)
		exprFmt(n.Chan, s, nprec)
		fmt.Fprintf(s, " <- ")
		exprFmt(n.Value, s, nprec+1)

	case OADDSTR:
		n := n.(*AddStringExpr)
		for i, n1 := range n.List {
			if i != 0 {
				fmt.Fprint(s, " + ")
			}
			exprFmt(n1, s, nprec)
		}
	default:

  Scope root = Scope::NewRootScope().ExitOnError();

  Output recv = ops::_Recv(root.WithOpName("recv"), DT_BOOL, "tensor", "sender",
                           0, "receiver");
  Output value = ops::Placeholder(root.WithOpName("value"), DT_BOOL);
  ops::Switch sw(root.WithOpName("switch"), value, recv);
  Output logical_and =
      ops::LogicalAnd(root.WithOpName("and"), recv, sw.output_true);

  std::unique_ptr<DeadnessAnalysis> result;

        return bufferIndex - start;
    }


    @Override
    protected int readBytesWireFormat ( byte[] buffer, int bufferIndex ) {
        // handled special in SmbTransport.doRecv()
        return 0;
    }


    @Override
    public String toString () {
        return new String(

		}
		return fmt.Sprintf("types.NewArray(%s, %d)", i.subtype(t.Elt), intconst(t.Len))
	case *ast.ChanType:
		dir := "types.Cboth"
		switch t.Dir {
		case ast.SEND:
			dir = "types.Csend"
		case ast.RECV:
			dir = "types.Crecv"
		}
		return fmt.Sprintf("types.NewChan(%s, %s)", i.subtype(t.Value), dir)
	case *ast.FuncType:
		return fmt.Sprintf("newSig(%s, %s)", i.fields(t.Params, false), i.fields(t.Results, false))