panic("bad cas32") // return false would probably loop
	}
	return (*atomic.Uint32)(unsafe.Pointer(&m.mapping.Data[off])).CompareAndSwap(old, new)
}

func (m *mappedFile) entryAt(off uint32) (name []byte, next uint32, v *atomic.Uint64, ok bool) {
	if off < m.hdrLen+hashOff || int64(off)+16 > int64(len(m.mapping.Data)) {
		return nil, 0, nil, false
	}
	nameLen := m.load32(off+8) & 0x00ffffff

	case formRnglistx:
		return ClassRngList
	}
}

// An entry is a sequence of attribute/value pairs.
type Entry struct {
	Offset   Offset // offset of Entry in DWARF info
	Tag      Tag    // tag (kind of Entry)
	Children bool   // whether Entry is followed by children
	Field    []Field
}

// A Field is a single attribute/value pair in an [Entry].
//

  /**
   * Returns an immutable set of the mappings in this map. The iteration order is specified by the
   * method used to create this map. Typically, this is insertion order.
   */
  @Override
  public ImmutableSet<Entry<K, V>> entrySet() {
    ImmutableSet<Entry<K, V>> result = entrySet;
    return (result == null) ? entrySet = createEntrySet() : result;
  }

      K k10,
      V v10) {
    return RegularImmutableBiMap.fromEntries(
        entryOf(k1, v1),
        entryOf(k2, v2),
        entryOf(k3, v3),
        entryOf(k4, v4),
        entryOf(k5, v5),
        entryOf(k6, v6),
        entryOf(k7, v7),
        entryOf(k8, v8),
        entryOf(k9, v9),
        entryOf(k10, v10));
  }

  // looking for of() with > 10 entries? Use the builder or ofEntries instead.

      V v9,
      K k10,
      V v10) {
    return new RegularImmutableMap<K, V>(
        entryOf(k1, v1),
        entryOf(k2, v2),
        entryOf(k3, v3),
        entryOf(k4, v4),
        entryOf(k5, v5),
        entryOf(k6, v6),
        entryOf(k7, v7),
        entryOf(k8, v8),
        entryOf(k9, v9),
        entryOf(k10, v10));
  }

  // looking for of() with > 10 entries? Use the builder instead.

        def compared = PathUtil.getPathComparator(CASE_SENSITIVE).compare(path1, path2)
        def entry1 = new ChildMap.Entry<FileSystemNode>(path1, child1)
        def entry2 = new ChildMap.Entry<FileSystemNode>(path2, child2)
        return compared < 0 ? ChildMapFactory.childMapFromSorted([entry1, entry2]) : ChildMapFactory.childMapFromSorted([entry2, entry1])
    }

    @Override
    FileSystemNode mockChild() {
        Mock(FileSystemNode)

              }

              class EntrySet extends AbstractSet<Map.Entry<String, String>> {
                @Override
                public Iterator<Entry<String, String>> iterator() {
                  return new Iterator<Entry<String, String>>() {

                    final Iterator<Entry<String, String>> iterator = map.entrySet().iterator();

                    @Override

    ImmutableSet<Entry<E>> es = entrySet;
    return (es == null) ? (entrySet = createEntrySet()) : es;
  }

  private ImmutableSet<Entry<E>> createEntrySet() {
    return isEmpty() ? ImmutableSet.<Entry<E>>of() : new EntrySet();
  }

  abstract Entry<E> getEntry(int index);

  @WeakOuter
  private final class EntrySet extends IndexedImmutableSet<Entry<E>> {
    @Override
    boolean isPartialView() {

        if (o instanceof Entry) {
          Entry<?, ?> entry = (Entry<?, ?>) o;
          return containsMapping(entry.getKey(), columnKey, entry.getValue());
        }
        return false;
      }

      @Override
      public boolean remove(@CheckForNull Object obj) {
        if (obj instanceof Entry) {
          Entry<?, ?> entry = (Entry<?, ?>) obj;

  }

  @LazyInit @CheckForNull private transient Set<Entry<K, V>> entrySet;

  @Override
  public Set<Entry<K, V>> entrySet() {
    Set<Entry<K, V>> result = entrySet;
    return (result == null) ? entrySet = new EntrySet() : result;
  }

  class BiMapEntry extends ForwardingMapEntry<K, V> {
    private final Entry<K, V> delegate;

    BiMapEntry(Entry<K, V> delegate) {
      this.delegate = delegate;
    }