ParseBasicBinary.cxx

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#include "TMVA/RModelParser_ONNX.hxx"
#include "TMVA/ROperator_BasicBinary.hxx"
#include "onnx_proto3.pb.h"
 
namespace TMVA {
namespace Experimental {
namespace SOFIE {
 
template <EBasicBinaryOperator Op>
std::unique_ptr<ROperator> ParseBasicBinary(RModelParser_ONNX &parser, const onnx::NodeProto &nodeproto)
{
   ETensorType input_type = ETensorType::UNDEFINED;
 
   for (int i = 0; i < 2; ++i) {
      auto input_name = nodeproto.input(i);
      if (parser.IsRegisteredTensorType(input_name)) {
         // according to ONNX both inputs have same type
         if (i == 0)
            input_type = parser.GetTensorType(input_name);
         else
            if (input_type != parser.GetTensorType(input_name)) {
               throw
                  std::runtime_error("TMVA::SOFIE ONNX parser Binary op has input tensors of different types");
            }
      } else {
         throw std::runtime_error("TMVA::SOFIE ONNX Parser Binary op has input tensor " + input_name +
                                  " but its type is not yet registered");
      }
   }
 
   std::unique_ptr<ROperator> op;
   std::string output_name = nodeproto.output(0);
 
   switch (input_type) {
   case ETensorType::FLOAT:
      op.reset(new ROperator_BasicBinary<float, Op>(nodeproto.input(0), nodeproto.input(1), output_name));
      break;
   default:
      throw std::runtime_error("TMVA::SOFIE - Unsupported - Binary Operator does not yet support input type " +
                               std::to_string(static_cast<int>(input_type)));
   }
 
   // Infer the output type
   if (!parser.IsRegisteredTensorType(output_name)) {
      parser.RegisterTensorType(output_name, input_type);
   }
 
   return op;
};
 
// Parse Add
ParserFuncSignature ParseAdd = [](RModelParser_ONNX &parser, const onnx::NodeProto &nodeproto) {
   return ParseBasicBinary<EBasicBinaryOperator::Add>(parser, nodeproto);
};
 
// Parse Sub
ParserFuncSignature ParseSub = [](RModelParser_ONNX &parser, const onnx::NodeProto &nodeproto) {
   return ParseBasicBinary<EBasicBinaryOperator::Sub>(parser, nodeproto);
};
 
// Parse Mul
ParserFuncSignature ParseMul = [](RModelParser_ONNX &parser, const onnx::NodeProto &nodeproto) {
   return ParseBasicBinary<EBasicBinaryOperator::Mul>(parser, nodeproto);
};
 
// Parse Div
ParserFuncSignature ParseDiv = [](RModelParser_ONNX &parser, const onnx::NodeProto &nodeproto) {
   return ParseBasicBinary<EBasicBinaryOperator::Div>(parser, nodeproto);
};
 
// Parse Pow
ParserFuncSignature ParsePow = [](RModelParser_ONNX &parser, const onnx::NodeProto &nodeproto) {
   return ParseBasicBinary<EBasicBinaryOperator::Pow>(parser, nodeproto);
};
 
} // namespace SOFIE
} // namespace Experimental
} // namespace TMVA