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onnx_import
include
onnx_import
core
null_node.hpp
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//*****************************************************************************
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// Copyright 2017-2020 Intel Corporation
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//*****************************************************************************
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#pragma once
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#include <memory>
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#include "ngraph/node.hpp"
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#include "onnx_import/utils/onnx_importer_visibility.hpp"
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namespace
ngraph
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{
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namespace
op
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{
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ONNX_IMPORTER_API
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bool
is_null(
const
ngraph::Node
* node);
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ONNX_IMPORTER_API
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bool
is_null(
const
std::shared_ptr<ngraph::Node>& node);
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ONNX_IMPORTER_API
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bool
is_null(
const
Output<ngraph::Node>& output);
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}
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namespace
onnx_import
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{
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/// \brief Represents a missing optional input or output of an ONNX node
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///
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/// Some ONNX operators have inputs or outputs that are marked as optional,
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/// which means that a referring node MAY forgo providing values for such inputs
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/// or computing these outputs.
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/// An empty string is used in place of a name of such input or output.
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///
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/// More:
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/// https://github.com/onnx/onnx/blob/master/docs/IR.md#optional-inputs-and-outputs
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class
NullNode
:
public
ngraph::Node
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{
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public
:
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static
constexpr NodeTypeInfo type_info{
"NullNode"
, 0};
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const
NodeTypeInfo&
get_type_info
()
const override
{
return
type_info; }
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NullNode
() =
default
;
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virtual
std::shared_ptr<Node>
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clone_with_new_inputs(
const
OutputVector& new_args)
const override
;
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};
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}
// namespace onnx_import
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}
// namespace ngraph
ngraph
The Intel nGraph C++ API.
Definition:
attribute_adapter.hpp:28
ngraph::Node
Definition:
node.hpp:131
ngraph::onnx_import::NullNode
Represents a missing optional input or output of an ONNX node.
Definition:
null_node.hpp:47
ngraph::onnx_import::NullNode::get_type_info
const NodeTypeInfo & get_type_info() const override
Definition:
null_node.hpp:50