1/* Copyright 2015 The TensorFlow Authors. All Rights Reserved.
2
3Licensed under the Apache License, Version 2.0 (the "License");
4you may not use this file except in compliance with the License.
5You may obtain a copy of the License at
6
7 http://www.apache.org/licenses/LICENSE-2.0
8
9Unless required by applicable law or agreed to in writing, software
10distributed under the License is distributed on an "AS IS" BASIS,
11WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12See the License for the specific language governing permissions and
13limitations under the License.
14==============================================================================*/
15
16#include "tensorflow/core/graph/graph_def_builder.h"
17
18#include <utility>
19
20#include "tensorflow/core/graph/tensor_id.h"
21#include "tensorflow/core/lib/core/errors.h"
22
23namespace tensorflow {
24
25GraphDefBuilder::Options::Options(Graph* graph, Status* status)
26 : graph_(graph), status_(status) {}
27GraphDefBuilder::Options::~Options() {}
28
29GraphDefBuilder::Options GraphDefBuilder::Options::WithName(
30 StringPiece name) const {
31 return Options(*this).WithNameImpl(name);
32}
33GraphDefBuilder::Options GraphDefBuilder::Options::WithDevice(
34 StringPiece device) const {
35 return Options(*this).WithDeviceImpl(device);
36}
37GraphDefBuilder::Options GraphDefBuilder::Options::WithControlInput(
38 Node* control_input) const {
39 return Options(*this).WithControlInputImpl(control_input);
40}
41GraphDefBuilder::Options GraphDefBuilder::Options::WithControlInputs(
42 gtl::ArraySlice<Node*> control_inputs) const {
43 return Options(*this).WithControlInputsImpl(control_inputs);
44}
45GraphDefBuilder::Options GraphDefBuilder::Options::WithNameImpl(
46 StringPiece name) {
47 name_ = string(name);
48 return *this;
49}
50GraphDefBuilder::Options GraphDefBuilder::Options::WithDeviceImpl(
51 StringPiece device) {
52 device_ = string(device);
53 return *this;
54}
55GraphDefBuilder::Options GraphDefBuilder::Options::WithControlInputImpl(
56 Node* control_input) {
57 control_inputs_.push_back(control_input);
58 return *this;
59}
60GraphDefBuilder::Options GraphDefBuilder::Options::WithControlInputsImpl(
61 gtl::ArraySlice<Node*> control_inputs) {
62 control_inputs_.insert(control_inputs_.end(), control_inputs.begin(),
63 control_inputs.end());
64 return *this;
65}
66
67Status GraphDefBuilder::ToGraphDef(GraphDef* graph_def) const {
68 if (status_.ok()) {
69 graph_.ToGraphDef(graph_def);
70 *graph_def->mutable_library() = flib_def_.ToProto();
71 }
72 return status_;
73}
74
75string GraphDefBuilder::Options::GetNameForOp(StringPiece op) const {
76 if (name_.empty()) return graph_->NewName(op);
77 return name_;
78}
79
80Node* GraphDefBuilder::Options::FinalizeBuilder(NodeBuilder* builder) const {
81 builder->ControlInputs(control_inputs_);
82 if (!device_.empty()) builder->Device(device_);
83 for (const auto& attr : attrs_) {
84 builder->Attr(attr.first, attr.second);
85 }
86
87 Node* returned_node;
88 UpdateStatus(builder->Finalize(graph_, &returned_node));
89 return returned_node;
90}
91
92void GraphDefBuilder::Options::UpdateStatus(const Status& status) const {
93 if (status_ == nullptr) {
94 TF_CHECK_OK(status);
95 } else {
96 status_->Update(status);
97 }
98}
99
100namespace ops {
101
102Node* SourceOp(const string& op_name, const GraphDefBuilder::Options& opts) {
103 if (opts.HaveError()) return nullptr;
104 NodeBuilder node_builder(opts.GetNameForOp(op_name), op_name,
105 opts.op_registry());
106 return opts.FinalizeBuilder(&node_builder);
107}
108
109Node* UnaryOp(const string& op_name, NodeOut input,
110 const GraphDefBuilder::Options& opts) {
111 if (opts.HaveError()) return nullptr;
112 NodeBuilder node_builder(opts.GetNameForOp(op_name), op_name,
113 opts.op_registry());
114 node_builder.Input(std::move(input));
115 return opts.FinalizeBuilder(&node_builder);
116}
117
118Node* BinaryOp(const string& op_name, NodeOut a, NodeOut b,
119 const GraphDefBuilder::Options& opts) {
120 if (opts.HaveError()) return nullptr;
121 NodeBuilder node_builder(opts.GetNameForOp(op_name), op_name,
122 opts.op_registry());
123 node_builder.Input(std::move(a)).Input(std::move(b));
124 return opts.FinalizeBuilder(&node_builder);
125}
126
127Node* TernaryOp(const string& op_name, NodeOut a, NodeOut b, NodeOut c,
128 const GraphDefBuilder::Options& opts) {
129 if (opts.HaveError()) return nullptr;
130 NodeBuilder node_builder(opts.GetNameForOp(op_name), op_name,
131 opts.op_registry());
132 node_builder.Input(std::move(a)).Input(std::move(b)).Input(std::move(c));
133 return opts.FinalizeBuilder(&node_builder);
134}
135
136} // end namespace ops
137} // end namespace tensorflow
138