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//
// Copyright © 2019 Arm Ltd. All rights reserved.
// SPDX-License-Identifier: MIT
//
#pragma once
#include "LayerWithParameters.hpp"
namespace armnn
{
/// This layer represents an unknown operation in the input graph.
class StandInLayer : public LayerWithParameters<StandInDescriptor>
{
public:
/// Empty implementation explictly does NOT create a workload. Throws Exception if called.
/// @param [in] graph The graph where this layer can be found.
/// @param [in] factory The workload factory which will create the workload.
/// @return Does not return anything. Throws Exception if called.
virtual std::unique_ptr<IWorkload>CreateWorkload(const IWorkloadFactory& factory) const override;
/// Creates a dynamically-allocated copy of this layer.
/// @param [in] graph The graph into which this layer is being cloned.
StandInLayer* Clone(Graph& graph) const override;
/// Check if the input tensor shape(s)
/// Does nothing since cannot validate any properties of this layer.
/// @param [in] shapeInferenceMethod Indicates if output shape shall be overwritten or just validated.
void ValidateTensorShapesFromInputs(
ShapeInferenceMethod shapeInferenceMethod = ShapeInferenceMethod::ValidateOnly) override;
/// Empty implementation that throws Exception if called.
/// otherwise infers the output shapes from given input shapes and layer properties.
/// @param [in] inputShapes The input shapes layer has.
/// @return Does not return anything. Throws Exception if called.
std::vector<TensorShape> InferOutputShapes(const std::vector<TensorShape>& inputShapes) const override;
/// Accepts a visitor object and calls VisitStandInLayer() method.
/// @param visitor The visitor on which to call VisitStandInLayer() method.
void Accept(ILayerVisitor& visitor) const override;
protected:
/// Constructor to create a StandInLayer.
/// @param [in] param StandInDescriptor to configure the stand-in operation.
/// @param [in] name Optional name for the layer.
StandInLayer(const StandInDescriptor& param, const char* name);
/// Default destructor
~StandInLayer() = default;
};
} //namespace armnn
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