import java.io.File;

public abstract class DirectoryTrees {
    private DirectoryTrees() {
    }

    public static boolean contains(FileSystem fileSystem, DirectoryTree tree, File file) {
        String prefix = tree.getDir().getAbsolutePath() + File.separator;
        if (!file.getAbsolutePath().startsWith(prefix)) {
            return false;
        }

        this.server = server
        this.backingModule = backingModule
    }

    SftpArtifact getIvy() {
        return new SftpArtifact(server, ivyFile)
    }

    SftpArtifact getJar() {
        return new SftpArtifact(server, jarFile)
    }

    @Override
    SftpArtifact getModuleMetadata() {
        return new SftpArtifact(server, moduleMetadataFile)
    }

        // Compiler daemons do not rely on project cache directory
        return new ForkedWorkerRequirement(daemonForkOptions.getJavaForkOptions().getWorkingDir(), projectCacheDir.getDir(), daemonForkOptions);
    }

  TF::LoadResourceDataflowAnalysis(solver);
  if (failed(solver.initializeAndRun(module))) return signalPassFailure();

  DenseSet<GlobalTensorOp> remaining_global_tensor_ops;
  {
    auto ops = module.getOps<GlobalTensorOp>();
    remaining_global_tensor_ops.insert(ops.begin(), ops.end());
  }

  for (auto global_tensor : remaining_global_tensor_ops) {
    // This pass assumes that all global tensors as immutable (e.g. by a

        Map<File, DirectoryTree> trees = new LinkedHashMap<>();
        for (DirectoryTree tree : getSourceTrees()) {
            if (!trees.containsKey(tree.getDir())) {
                trees.put(tree.getDir(), tree);
            }
        }
        return new LinkedHashSet<>(trees.values());
    }

    protected Set<DirectoryFileTree> getSourceTrees() {

}

static LogicalResult convertTFGlobals(ModuleOp module) {
  OpBuilder globalBuilder(module.getBodyRegion());
  DenseMap<Operation *, std::string> opToName;
  for (auto globalTensor : module.getOps<tf_saved_model::GlobalTensorOp>()) {
    auto exportedNames = tf_saved_model::GetExportedNames(globalTensor);
    std::string name;
    if (exportedNames.empty()) {
      name = "global_ml_" + globalTensor.getSymName().str();

        return new IsolatedClassLoaderWorkerRequirement(daemonForkOptions.getJavaForkOptions().getWorkingDir(), projectCacheDir.getDir(), daemonForkOptions.getClassLoaderStructure());
    }

     */
    NativeLibraryRequirement getStatic();

    /**
     * Converts this library to a native library requirement that uses the api library linkage.
     */
    NativeLibraryRequirement getApi();

  auto pflr = std::make_unique<ProcessFunctionLibraryRuntime>(
      nullptr, options.session_options->env, /*config=*/nullptr,
      TF_GRAPH_DEF_VERSION, options.flib_def, opts);
  FunctionLibraryRuntime* flr =
      pflr->GetFLR(ProcessFunctionLibraryRuntime::kDefaultFLRDevice);

  for (Node* node : graph->nodes()) {
    if (CanCreateXlaKernel(node->def())) {
      const FunctionBody* fbody = nullptr;
      std::vector<int> constant_arg_indices;

    return failure();
  }

  // Fetch all VarHandleOp.
  llvm::StringSet<> variable_names;
  llvm::SmallVector<TF::VarHandleOp, 4> var_ops;
  for (auto func_op : module.getOps<func::FuncOp>()) {
    for (auto var_handle_op : func_op.getOps<TF::VarHandleOp>()) {
      auto variable_name = GetVariableName(var_handle_op);
      if (variable_names.count(variable_name)) continue;
      var_ops.emplace_back(var_handle_op);