1 files changed, 0 insertions, 102 deletions
diff --git a/tensorflow/core/kernels/data/identity_dataset_op.cc b/tensorflow/core/kernels/data/identity_dataset_op.cc
deleted file mode 100644
index e28f188336..0000000000
--- a/tensorflow/core/kernels/data/identity_dataset_op.cc
+++ /dev/null
@@ -1,102 +0,0 @@
-/* Copyright 2018 The TensorFlow Authors. All Rights Reserved.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-==============================================================================*/
-#include <map>
-
-#include "tensorflow/core/framework/tensor.h"
-#include "tensorflow/core/kernels/data/dataset.h"
-
-namespace tensorflow {
-namespace {
-
-// The purpose of identity dataset is to serve as a placeholder when performing
-// optimizations. It is not expected to be surfaced in the Python API.
-class IdentityDatasetOp : public UnaryDatasetOpKernel {
- public:
-  explicit IdentityDatasetOp(OpKernelConstruction* ctx)
-      : UnaryDatasetOpKernel(ctx) {
-    OP_REQUIRES_OK(ctx, ctx->GetAttr("output_types", &output_types_));
-    OP_REQUIRES_OK(ctx, ctx->GetAttr("output_shapes", &output_shapes_));
-  }
-
- protected:
-  void MakeDataset(OpKernelContext* ctx, DatasetBase* input,
-                   DatasetBase** output) override {
-    *output = new Dataset(ctx, input);
-  }
-
- private:
-  class Dataset : public GraphDatasetBase {
-   public:
-    Dataset(OpKernelContext* ctx, const DatasetBase* input)
-        : GraphDatasetBase(ctx), input_(input) {
-      input_->Ref();
-    }
-
-    ~Dataset() override { input_->Unref(); }
-
-    std::unique_ptr<IteratorBase> MakeIteratorInternal(
-        const string& prefix) const override {
-      return std::unique_ptr<IteratorBase>(
-          new Iterator({this, strings::StrCat(prefix, "::Identity")}));
-    }
-
-    const DataTypeVector& output_dtypes() const override {
-      return input_->output_dtypes();
-    }
-
-    const std::vector<PartialTensorShape>& output_shapes() const override {
-      return input_->output_shapes();
-    }
-
-    string DebugString() const override { return "IdentityDatasetOp::Dataset"; }
-
-   protected:
-    Status AsGraphDefInternal(OpKernelContext* ctx, DatasetGraphDefBuilder* b,
-                              Node** output) const override {
-      Node* input_graph_node = nullptr;
-      TF_RETURN_IF_ERROR(b->AddParentDataset(ctx, input_, &input_graph_node));
-      TF_RETURN_IF_ERROR(b->AddDataset(this, {input_graph_node}, output));
-      return Status::OK();
-    }
-
-   private:
-    class Iterator : public DatasetIterator<Dataset> {
-     public:
-      explicit Iterator(const Params& params)
-          : DatasetIterator<Dataset>(params) {}
-
-      Status Initialize(IteratorContext* ctx) override {
-        return errors::Unimplemented(strings::StrCat(prefix(), "::Initialize"));
-      }
-
-      Status GetNextInternal(IteratorContext* ctx,
-                             std::vector<Tensor>* out_tensors,
-                             bool* end_of_sequence) override {
-        return errors::Unimplemented(
-            strings::StrCat(prefix(), "::GetNextInternal"));
-      }
-    };
-
-    const DatasetBase* const input_;
-  };
-
-  DataTypeVector output_types_;
-  std::vector<PartialTensorShape> output_shapes_;
-};
-
-REGISTER_KERNEL_BUILDER(Name("IdentityDataset").Device(DEVICE_CPU),
-                        IdentityDatasetOp);
-}  // namespace
-}  // namespace tensorflow