}
        });
    }

    public static <T extends FileSystemNode> Optional<FileSystemNode> getChild(ChildMap<T> children, VfsRelativePath targetPath, CaseSensitivity caseSensitivity) {
        return children.withNode(targetPath, caseSensitivity, new ChildMap.NodeHandler<T, Optional<FileSystemNode>>() {
            @Override
            public Optional<FileSystemNode> handleAsDescendantOfChild(VfsRelativePath pathInChild, T child) {

    }

    @Override
    public <T> T accept(FileSystemLocationSnapshotTransformer<T> transformer) {
        return transformer.visitMissing(this);
    }

    @Override
    public Optional<FileSystemNode> invalidate(VfsRelativePath targetPath, CaseSensitivity caseSensitivity, SnapshotHierarchy.NodeDiffListener diffListener) {
        diffListener.nodeRemoved(this);
        return Optional.empty();
    }

    @Override

 * The file at the location is not required to exist (see {@link MissingFileSnapshot}).
 */
public interface FileSystemLocationSnapshot extends FileSystemSnapshot, FileSystemNode, MetadataSnapshot {

    /**
     * The comparator of direct children of a file system location.
     *