get_python_type.hpp

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#ifndef MLPACK_BINDINGS_PYTHON_GET_PYTHON_TYPE_HPP
#define MLPACK_BINDINGS_PYTHON_GET_PYTHON_TYPE_HPP

#include <mlpack/prereqs.hpp>
#include <mlpack/core/util/is_std_vector.hpp>

namespace mlpack {
namespace bindings {
namespace python {

template<typename T>
inline std::string GetPythonType(
    const util::ParamData& /* d */,
    const typename boost::disable_if<util::IsStdVector<T>>::type* = 0,
    const typename boost::disable_if<data::HasSerialize<T>>::type* = 0,
    const typename boost::disable_if<arma::is_arma_type<T>>::type* = 0)
{
  return "unknown";
}

template<>
inline std::string GetPythonType<int>(
    const util::ParamData& /* d */,
    const typename boost::disable_if<util::IsStdVector<int>>::type*,
    const typename boost::disable_if<data::HasSerialize<int>>::type*,
    const typename boost::disable_if<arma::is_arma_type<int>>::type*)
{
  return "int";
}

template<>
inline std::string GetPythonType<float>(
    const util::ParamData& /* d */,
    const typename boost::disable_if<util::IsStdVector<float>>::type*,
    const typename boost::disable_if<data::HasSerialize<float>>::type*,
    const typename boost::disable_if<arma::is_arma_type<float>>::type*)
{
  return "float";
}

template<>
inline std::string GetPythonType<double>(
    const util::ParamData& /* d */,
    const typename boost::disable_if<util::IsStdVector<double>>::type*,
    const typename boost::disable_if<data::HasSerialize<double>>::type*,
    const typename boost::disable_if<arma::is_arma_type<double>>::type*)
{
  return "double";
}

template<>
inline std::string GetPythonType<std::string>(
    const util::ParamData& /* d */,
    const typename boost::disable_if<util::IsStdVector<std::string>>::type*,
    const typename boost::disable_if<data::HasSerialize<std::string>>::type*,
    const typename boost::disable_if<arma::is_arma_type<std::string>>::type*)
{
  return "string";
}

template<>
inline std::string GetPythonType<size_t>(
    const util::ParamData& /* d */,
    const typename boost::disable_if<util::IsStdVector<size_t>>::type*,
    const typename boost::disable_if<data::HasSerialize<size_t>>::type*,
    const typename boost::disable_if<arma::is_arma_type<size_t>>::type*)
{
  return "size_t";
}

template<>
inline std::string GetPythonType<bool>(
    const util::ParamData& /* d */,
    const typename boost::disable_if<util::IsStdVector<bool>>::type*,
    const typename boost::disable_if<data::HasSerialize<bool>>::type*,
    const typename boost::disable_if<arma::is_arma_type<bool>>::type*)
{
  return "bool";
}

template<typename T>
inline std::string GetPythonType(
    const util::ParamData& d,
    const typename boost::enable_if<util::IsStdVector<T>>::type* = 0)
{
  return "list of " + GetPythonType<typename T::value_type>(d) + "s";
}

template<typename T>
inline std::string GetPythonType(
    const util::ParamData& /* d */,
    const typename boost::enable_if<arma::is_arma_type<T>>::type* = 0)
{
  std::string type = "matrix";
  if (T::is_row)
    type = "row vector";
  else if (T::is_col)
    type = "column vector";

  return type;
}

template<typename T>
inline std::string GetPythonType(
    const util::ParamData& d,
    const typename boost::disable_if<arma::is_arma_type<T>>::type* = 0,
    const typename boost::enable_if<data::HasSerialize<T>>::type* = 0)
{
  return d.cppType + "Type";
}

} // namespace python
} // namespace bindings
} // namespace mlpack

#endif