1 /* Copyright 2017 The TensorFlow Authors. All Rights Reserved. 2 3 Licensed under the Apache License, Version 2.0 (the "License"); 4 you may not use this file except in compliance with the License. 5 You may obtain a copy of the License at 6 7 http://www.apache.org/licenses/LICENSE-2.0 8 9 Unless required by applicable law or agreed to in writing, software 10 distributed under the License is distributed on an "AS IS" BASIS, 11 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 See the License for the specific language governing permissions and 13 limitations under the License. 14 ==============================================================================*/ 15 16 #ifndef TENSORFLOW_CONTRIB_SEQ2SEQ_KERNELS_BEAM_SEARCH_OPS_H_ 17 #define TENSORFLOW_CONTRIB_SEQ2SEQ_KERNELS_BEAM_SEARCH_OPS_H_ 18 19 #include "third_party/eigen3/unsupported/Eigen/CXX11/Tensor" 20 #include "tensorflow/core/framework/tensor_types.h" 21 #include "tensorflow/core/platform/types.h" 22 23 namespace tensorflow { 24 class OpKernelContext; 25 26 namespace functor { 27 28 template <typename Device, typename T> 29 struct GatherTree { 30 void operator()(OpKernelContext* ctx, const Device& d, 31 typename TTypes<T, 3>::ConstTensor step_ids, 32 typename TTypes<T, 3>::ConstTensor parent_ids, 33 TTypes<int32>::ConstVec max_sequence_lengths, 34 const T end_token, typename TTypes<T, 3>::Tensor beams); 35 }; 36 37 } // namespace functor 38 } // namespace tensorflow 39 40 #endif // TENSORFLOW_CONTRIB_SEQ2SEQ_KERNELS_BEAM_SEARCH_OPS_H_ 41