OnnxAttrs.hpp

/*
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#pragma once

#include <onnx/onnx.pb.h>
#include <NvInfer.h>
#include <vector>
#include <unordered_map>

class OnnxAttrs {
  template<typename T>
  using string_map = std::unordered_map<std::string, T>;
  typedef string_map<::ONNX_NAMESPACE::AttributeProto const*> AttrMap;
  AttrMap _attrs;
public:
  explicit OnnxAttrs(::ONNX_NAMESPACE::NodeProto const& onnx_node) {
    for( auto const& attr : onnx_node.attribute() ) {
      _attrs.insert({attr.name(), &attr});
    }
  }
  bool count(std::string key) const { return _attrs.count(key); }
  ::ONNX_NAMESPACE::AttributeProto const* at(std::string key) const {
    if( !_attrs.count(key) ) {
      throw std::out_of_range("Attribute not found: " + key);
    }
    return _attrs.at(key);
  }
  template<typename T> T get(std::string key) const;
  template<typename T> T get(std::string key, T const& default_value) const {
    return _attrs.count(key) ? this->get<T>(key) : default_value;
  }
};