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tensorflow/tensorflow/core/framework/full_type_util.cc
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| /* Copyright 2020 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 "tensorflow/core/framework/full_type_util.h" | |
| #include "tensorflow/core/framework/attr_value.pb.h" | |
| #include "tensorflow/core/framework/full_type.pb.h" | |
| #include "tensorflow/core/framework/node_def.pb.h" | |
| #include "tensorflow/core/framework/node_def_util.h" | |
| #include "tensorflow/core/framework/op_def.pb.h" | |
| #include "tensorflow/core/framework/types.h" | |
| #include "tensorflow/core/platform/statusor.h" | |
| namespace tensorflow { | |
| namespace full_type { | |
| OpTypeConstructor Nullary(FullTypeId t) { | |
| return [t](OpDef* op_def) { | |
| FullTypeDef* tdef = | |
| op_def->mutable_output_arg(0)->mutable_experimental_full_type(); | |
| tdef->set_type_id(t); | |
| return Status::OK(); | |
| }; | |
| } | |
| OpTypeConstructor Unary(FullTypeId t, const string& var_name) { | |
| return [t, var_name](OpDef* op_def) { | |
| FullTypeDef* tdef = | |
| op_def->mutable_output_arg(0)->mutable_experimental_full_type(); | |
| tdef->set_type_id(t); | |
| FullTypeDef* arg = tdef->add_args(); | |
| arg->set_type_id(TFT_VAR); | |
| arg->set_s(var_name); | |
| return Status::OK(); | |
| }; | |
| } | |
| OpTypeConstructor UnaryGeneric(FullTypeId t) { | |
| return [t](OpDef* op_def) { | |
| FullTypeDef* tdef = | |
| op_def->mutable_output_arg(0)->mutable_experimental_full_type(); | |
| tdef->set_type_id(t); | |
| FullTypeDef* arg = tdef->add_args(); | |
| arg->set_type_id(TFT_ANY); | |
| return Status::OK(); | |
| }; | |
| } | |
| OpTypeConstructor UnaryTensorContainer(FullTypeId t, FullTypeId dtype) { | |
| return [t, dtype](OpDef* op_def) { | |
| FullTypeDef* tdef = | |
| op_def->mutable_output_arg(0)->mutable_experimental_full_type(); | |
| tdef->set_type_id(t); | |
| FullTypeDef* arg = tdef->add_args(); | |
| arg->set_type_id(TFT_TENSOR); | |
| FullTypeDef* targ = arg->add_args(); | |
| targ->set_type_id(dtype); | |
| return Status::OK(); | |
| }; | |
| } | |
| StatusOr<FullTypeDef> SpecializeType(const AttrSlice& attrs, | |
| const OpDef& op_def) { | |
| FullTypeDef ft; | |
| ft.set_type_id(TFT_PRODUCT); | |
| for (int i = 0; i < op_def.output_arg_size(); i++) { | |
| auto* t = ft.add_args(); | |
| *t = op_def.output_arg(i).experimental_full_type(); | |
| // Resolve dependent types. The convention for op registrations is to use | |
| // attributes as type variables. | |
| // See https://www.tensorflow.org/guide/create_op#type_polymorphism. | |
| // Once the op signature can be defined entirely in FullType, this | |
| // convention can be deprecated. | |
| // | |
| // Note: While this code performs some basic verifications, it generally | |
| // assumes consistent op defs and attributes. If more complete | |
| // verifications are needed, they should be done by separately, and in a | |
| // way that can be reused for type inference. | |
| for (int j = 0; j < t->args_size(); j++) { | |
| auto* arg = t->mutable_args(i); | |
| if (arg->type_id() == TFT_VAR) { | |
| const auto* attr = attrs.Find(arg->s()); | |
| DCHECK(attr != nullptr); | |
| if (attr->value_case() == AttrValue::kList) { | |
| const auto& attr_list = attr->list(); | |
| arg->set_type_id(TFT_PRODUCT); | |
| for (int i = 0; i < attr_list.type_size(); i++) { | |
| map_dtype_to_tensor(attr_list.type(i), arg->add_args()); | |
| } | |
| } else if (attr->value_case() == AttrValue::kType) { | |
| map_dtype_to_tensor(attr->type(), arg); | |
| } else { | |
| return Status(error::UNIMPLEMENTED, | |
| absl::StrCat("unknown attribute type", | |
| attrs.DebugString(), " key=", arg->s())); | |
| } | |
| arg->clear_s(); | |
| } | |
| } | |
| } | |
| return ft; | |
| } | |
| } // namespace full_type | |
| } // namespace tensorflow |