deeplearning4j/deeplearning4j

/* ******************************************************************************
 *
 *
 * This program and the accompanying materials are made available under the
 * terms of the Apache License, Version 2.0 which is available at
 * https://www.apache.org/licenses/LICENSE-2.0.
 *
 *  See the NOTICE file distributed with this work for additional
 *  information regarding copyright ownership.
 * 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.
 *
 * SPDX-License-Identifier: Apache-2.0
 ******************************************************************************/

//
// Created by raver119 on 06.11.2017.
//

#include <system/op_boilerplate.h>
#if NOT_EXCLUDED(OP_read_list)

#include <ops/declarable/CustomOperations.h>

namespace sd {
namespace ops {
LIST_OP_IMPL(read_list, 1, 1, 0, 0) {
  auto list = INPUT_LIST(0);
  NDArray *result = nullptr;

  REQUIRE_TRUE(list->height() > 0, 0, "ReadList: number of elements in list should be positive prior to Read call");

  if (block.numI() > 0) {
    auto index = INT_ARG(0);

    REQUIRE_TRUE(list->isWritten(index), 0, "ReadList: requested index [%i] wasn't written yet", index);

    result = list->read(index);
  } else if (block.width() > 0) {
    auto vec = INPUT_VARIABLE(1);

    REQUIRE_TRUE(vec->isScalar(), 0, "ReadList: index operand should be a scalar");

    auto index = vec->e<int>(0);

    REQUIRE_TRUE(list->isWritten(index), 0, "ReadList: requested index [%i] wasn't written yet", index);

    result = list->read(index);
  } else {
    REQUIRE_TRUE(false, 0, "ReadList: index value should be set either via IntArgs or via second operand");
  }

  //            OVERWRITE_RESULT(result);
  setupResult(result, block);
  return sd::Status::OK;
}
DECLARE_SYN(TensorArrayReadV3, read_list);
DECLARE_SYN(tensorarrayreadv3, read_list);
}  // namespace ops
}  // namespace sd

#endif