new MapMaker().weakKeys().makeMap();

    /**
     * The map tracking lock nodes that can cause a lock acquisition cycle if acquired before this
     * node.
     */
    final Map<LockGraphNode, PotentialDeadlockException> disallowedPriorLocks =
        new MapMaker().weakKeys().makeMap();

    final String lockName;

    LockGraphNode(String lockName) {

		return fmt.Errorf("cannot copy map with non-assignable keys: %v %v", st.Key(), dt.Key())
	}

	if sv.IsNil() {
		dv.Set(reflect.Zero(dt))
		return nil
	}
	dv.Set(reflect.MakeMap(dt))
	for _, key := range sv.MapKeys() {
		value := reflect.New(dt.Elem()).Elem()
		if val := unwrapInterface(sv.MapIndex(key)); val.IsValid() {
			if err := fromUnstructured(val, value, ctx); err != nil {
				return err

	case reflect.Uint:
		v.SetUint(uint64(randInt64(rand)))
	case reflect.Uintptr:
		v.SetUint(uint64(randInt64(rand)))
	case reflect.Map:
		numElems := rand.Intn(size)
		v.Set(reflect.MakeMap(concrete))
		for i := 0; i < numElems; i++ {
			key, ok1 := sizedValue(concrete.Key(), rand, size)
			value, ok2 := sizedValue(concrete.Elem(), rand, size)
			if !ok1 || !ok2 {
				return reflect.Value{}, false
			}

const Int64 <type 28> = 6 ;
const Int8 <type 28> = 3 ;
const Interface <type 28> = 20 ;
const Invalid <type 28> = 0 ;
type <type 28>;
func MakeChan (typ <type 26>, buffer <type -11>) <type 1>;
func MakeMap (typ <type 26>) <type 1>;
func MakeSlice (typ <type 26>, len <type -11>, cap <type -11>) <type 1>;
const Map <type 28> = 21 ;
type <type 24>;
func Method$equal (key1 <type 8>, key2 <type 8>, key_size <type -13>) <type -15>;

					hash := t.Hasher(k, uintptr(h.hash0))
					if hash&newbit != 0 {
						useY = 1
					}
				}

				b.tophash[i] = evacuatedX + useY // evacuatedX + 1 == evacuatedY, enforced in makemap
				dst := &xy[useY]                 // evacuation destination

				if dst.i == abi.MapBucketCount {
					dst.b = h.newoverflow(t, dst.b)
					dst.i = 0
					dst.k = add(unsafe.Pointer(dst.b), dataOffset)

					hash := t.Hasher(k, uintptr(h.hash0))
					if hash&newbit != 0 {
						useY = 1
					}
				}

				b.tophash[i] = evacuatedX + useY // evacuatedX + 1 == evacuatedY, enforced in makemap
				dst := &xy[useY]                 // evacuation destination

				if dst.i == abi.MapBucketCount {
					dst.b = h.newoverflow(t, dst.b)
					dst.i = 0
					dst.k = add(unsafe.Pointer(dst.b), dataOffset)

					hash := t.Hasher(k, uintptr(h.hash0))
					if hash&newbit != 0 {
						useY = 1
					}
				}

				b.tophash[i] = evacuatedX + useY // evacuatedX + 1 == evacuatedY, enforced in makemap
				dst := &xy[useY]                 // evacuation destination

				if dst.i == abi.MapBucketCount {
					dst.b = h.newoverflow(t, dst.b)
					dst.i = 0
					dst.k = add(unsafe.Pointer(dst.b), dataOffset)

      super(stripes);
      this.size = (mask == ALL_SET) ? Integer.MAX_VALUE : mask + 1;
      this.supplier = supplier;
      this.locks = new MapMaker().weakValues().makeMap();
    }

    @Override
    public L getAt(int index) {
      if (size != Integer.MAX_VALUE) {
        Preconditions.checkElementIndex(index, size());

      super(stripes);
      this.size = (mask == ALL_SET) ? Integer.MAX_VALUE : mask + 1;
      this.supplier = supplier;
      this.locks = new MapMaker().weakValues().makeMap();
    }

    @Override
    public L getAt(int index) {
      if (size != Integer.MAX_VALUE) {
        Preconditions.checkElementIndex(index, size());

type T40 struct {
	m map[int]int
}

//go:noescape
func useT40(*T40)

func newT40() *T40 {
	ret := T40{}
	ret.m = make(map[int]int, 42) // ERROR "live at call to makemap: &ret$"
	return &ret
}

func bad40() {
	t := newT40()
	_ = t
	printnl()
}

func good40() {
	ret := T40{}              // ERROR "stack object ret T40$"