1/* Copyright 2016 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/common_runtime/constant_folding.h"
17#include "tensorflow/core/common_runtime/graph_constructor.h"
18#include "tensorflow/core/graph/node_builder.h"
19#include "tensorflow/core/graph/subgraph.h"
20#include "tensorflow/core/platform/init_main.h"
21#include "tensorflow/core/public/session.h"
22#include "tensorflow/tools/graph_transforms/fold_constants_lib.h"
23#include "tensorflow/tools/graph_transforms/transform_utils.h"
24
25namespace tensorflow {
26namespace graph_transforms {
27
28// Deletes a given attribute from the specified nodes.
29Status RemoveAttribute(const GraphDef& input_graph_def,
30 const TransformFuncContext& context,
31 GraphDef* output_graph_def) {
32 if (!context.params.count("attribute_name") ||
33 (context.params.at("attribute_name").size() != 1)) {
34 return errors::InvalidArgument(
35 "remove_attribute expects exactly one 'attribute_name' "
36 "argument, e.g. remove_attribute(op_name=Mul, attribute_name=foo)");
37 }
38
39 string op_name;
40 if (context.params.count("op_name")) {
41 if (context.params.at("op_name").size() != 1) {
42 return errors::InvalidArgument(
43 "remove_attribute expects a single op_name argument, but found ",
44 context.params.at("op_name").size());
45 }
46 op_name = context.params.at("op_name")[0];
47 } else {
48 op_name = "*";
49 }
50
51 const string attribute_name = context.params.at("attribute_name")[0];
52 output_graph_def->Clear();
53 for (const NodeDef& node : input_graph_def.node()) {
54 NodeDef* new_node = output_graph_def->mutable_node()->Add();
55 *new_node = node;
56 if (((op_name == "*") || (op_name == node.op())) &&
57 (node.attr().count(attribute_name))) {
58 new_node->mutable_attr()->erase(attribute_name);
59 }
60 }
61
62 return OkStatus();
63}
64
65REGISTER_GRAPH_TRANSFORM("remove_attribute", RemoveAttribute);
66
67} // namespace graph_transforms
68} // namespace tensorflow
69