1 // 2 // Copyright © 2019 Arm Ltd and Contributors. All rights reserved. 3 // SPDX-License-Identifier: MIT 4 // 5 6 #pragma once 7 8 #include "LayerWithParameters.hpp" 9 10 namespace armnn 11 { 12 13 /// This layer represents an unknown operation in the input graph. 14 class StandInLayer : public LayerWithParameters<StandInDescriptor> 15 { 16 public: 17 /// Empty implementation explictly does NOT create a workload. Throws Exception if called. 18 /// @param [in] graph The graph where this layer can be found. 19 /// @param [in] factory The workload factory which will create the workload. 20 /// @return Does not return anything. Throws Exception if called. 21 virtual std::unique_ptr<IWorkload>CreateWorkload(const IWorkloadFactory& factory) const override; 22 23 /// Creates a dynamically-allocated copy of this layer. 24 /// @param [in] graph The graph into which this layer is being cloned. 25 StandInLayer* Clone(Graph& graph) const override; 26 27 /// Check if the input tensor shape(s) 28 /// Does nothing since cannot validate any properties of this layer. 29 /// @param [in] shapeInferenceMethod Indicates if output shape shall be overwritten or just validated. 30 void ValidateTensorShapesFromInputs() override; 31 32 /// Empty implementation that throws Exception if called. 33 /// otherwise infers the output shapes from given input shapes and layer properties. 34 /// @param [in] inputShapes The input shapes layer has. 35 /// @return Does not return anything. Throws Exception if called. 36 std::vector<TensorShape> InferOutputShapes(const std::vector<TensorShape>& inputShapes) const override; 37 38 /// Accepts a visitor object and calls VisitStandInLayer() method. 39 /// @param visitor The visitor on which to call VisitStandInLayer() method. 40 void Accept(ILayerVisitor& visitor) const override; 41 42 protected: 43 /// Constructor to create a StandInLayer. 44 /// @param [in] param StandInDescriptor to configure the stand-in operation. 45 /// @param [in] name Optional name for the layer. 46 StandInLayer(const StandInDescriptor& param, const char* name); 47 48 /// Default destructor 49 ~StandInLayer() = default; 50 }; 51 52 } //namespace armnn 53 54 55 56 57