get_cython_type.hpp

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#ifndef MLPACK_BINDINGS_PYTHON_GET_CYTHON_TYPE_HPP
#define MLPACK_BINDINGS_PYTHON_GET_CYTHON_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 GetCythonType(
    util::ParamData& /* d */,
    const typename std::enable_if<!util::IsStdVector<T>::value>::type* = 0,
    const typename std::enable_if<!data::HasSerialize<T>::value>::type* = 0,
    const typename std::enable_if<!arma::is_arma_type<T>::value>::type* = 0)
{
  return "unknown";
}

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

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

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

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

template<>
inline std::string GetCythonType<bool>(
    util::ParamData& /* d */,
    const typename std::enable_if<!util::IsStdVector<bool>::value>::type*,
    const typename std::enable_if<!data::HasSerialize<bool>::value>::type*,
    const typename std::enable_if<!arma::is_arma_type<bool>::value>::type*)
{
  return "cbool";
}

template<typename T>
inline std::string GetCythonType(
    util::ParamData& d,
    const typename std::enable_if<util::IsStdVector<T>::value>::type* = 0)
{
  return "vector[" + GetCythonType<typename T::value_type>(d) + "]";
}

template<typename T>
inline std::string GetCythonType(
    util::ParamData& d,
    const typename std::enable_if<arma::is_arma_type<T>::value>::type* = 0)
{
  std::string type = "Mat";
  if (T::is_row)
    type = "Row";
  else if (T::is_col)
    type = "Col";

  return "arma." + type + "[" + GetCythonType<typename T::elem_type>(d) + "]";
}

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

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

#endif