ParseBasicNary.cxx

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#include "TMVA/RModelParser_ONNX.hxx"
#include "TMVA/ROperator_BasicNary.hxx"
#include "onnx.hxx"
#include <memory>
 
namespace TMVA {
namespace Experimental {
namespace SOFIE {
 
template<EBasicNaryOperator Op>
std::unique_ptr<ROperator> ParseBasicNary(RModelParser_ONNX& parser, const onnx::NodeProto& nodeproto) {
   ETensorType input_type = ETensorType::UNDEFINED;
   std::vector<std::string> inputs;
   size_t size = nodeproto.input_size();
   inputs.reserve(size);
   for (int i = 0; i < nodeproto.input_size(); ++i) {
      auto input_name = nodeproto.input(i);
      if (parser.IsRegisteredTensorType(input_name)) {
         if (i == 0)
            input_type = parser.GetTensorType(input_name);
         else
            assert(parser.GetTensorType(input_name) == input_type);
      } else {
         throw std::runtime_error("TMVA::SOFIE ONNX Parser " + nodeproto.op_type() + " op has input tensor " +
                                  input_name + " but its type is not yet registered");
      }
      inputs.emplace_back(input_name);
   }
 
   std::unique_ptr<ROperator> op;
   std::string output_name = nodeproto.output(0);
 
   switch (input_type) {
   case ETensorType::FLOAT: op.reset(new ROperator_BasicNary<float, Op>(inputs, output_name)); break;
   case ETensorType::DOUBLE: op.reset(new ROperator_BasicNary<double, Op>(inputs, output_name)); break;
   case ETensorType::INT32: op.reset(new ROperator_BasicNary<int32_t, Op>(inputs, output_name)); break;
   case ETensorType::INT64: op.reset(new ROperator_BasicNary<int64_t, Op>(inputs, output_name)); break;
   default:
      throw std::runtime_error("TMVA::SOFIE - Unsupported - Operator " + nodeproto.op_type() +
                               " does not yet support input type " + ConvertTypeToString(input_type));
   }
 
   if (!parser.IsRegisteredTensorType(output_name)) {
      parser.RegisterTensorType(output_name, input_type);
   }
 
   return op;
}
 
void RegisterBasicNaryParsers(RModelParser_ONNX &parser)
{
   parser.RegisterOperator("Max", ParseBasicNary<EBasicNaryOperator::Max>);
   parser.RegisterOperator("Min", ParseBasicNary<EBasicNaryOperator::Min>);
   parser.RegisterOperator("Mean", ParseBasicNary<EBasicNaryOperator::Mean>);
   parser.RegisterOperator("Sum", ParseBasicNary<EBasicNaryOperator::Sum>);
}
 
} // namespace SOFIE
} // namespace Experimental
} // namespace TMVA