matlab/src/matlab_traits.h

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#ifndef ARROW_MATLAB_MATLAB_TRAITS_H
#define ARROW_MATLAB_MATLAB_TRAITS_H

#include <arrow/type.h>

#include <matrix.h>

namespace arrow {
namespace matlab {

/// \brief A type traits class mapping Arrow types to MATLAB types.
template <typename ArrowDataType>
struct MatlabTraits;

template <>
struct MatlabTraits<FloatType> {
  static constexpr mxClassID matlab_class_id = mxSINGLE_CLASS;
  using MatlabType = mxSingle;
  static MatlabType* GetData(mxArray* pa) { return mxGetSingles(pa); }
};

template <>
struct MatlabTraits<DoubleType> {
  static constexpr mxClassID matlab_class_id = mxDOUBLE_CLASS;
  using MatlabType = mxDouble;
  static MatlabType* GetData(mxArray* pa) { return mxGetDoubles(pa); }
};

template <>
struct MatlabTraits<UInt8Type> {
  static constexpr mxClassID matlab_class_id = mxUINT8_CLASS;
  using MatlabType = mxUint8;
  static MatlabType* GetData(mxArray* pa) { return mxGetUint8s(pa); }
};

template <>
struct MatlabTraits<UInt16Type> {
  static constexpr mxClassID matlab_class_id = mxUINT16_CLASS;
  using MatlabType = mxUint16;
  static MatlabType* GetData(mxArray* pa) { return mxGetUint16s(pa); }
};

template <>
struct MatlabTraits<UInt32Type> {
  static constexpr mxClassID matlab_class_id = mxUINT32_CLASS;
  using MatlabType = mxUint32;
  static MatlabType* GetData(mxArray* pa) { return mxGetUint32s(pa); }
};

template <>
struct MatlabTraits<UInt64Type> {
  static constexpr mxClassID matlab_class_id = mxUINT64_CLASS;
  using MatlabType = mxUint64;
  static MatlabType* GetData(mxArray* pa) { return mxGetUint64s(pa); }
};

template <>
struct MatlabTraits<Int8Type> {
  static constexpr mxClassID matlab_class_id = mxINT8_CLASS;
  using MatlabType = mxInt8;
  static MatlabType* GetData(mxArray* pa) { return mxGetInt8s(pa); }
};

template <>
struct MatlabTraits<Int16Type> {
  static constexpr mxClassID matlab_class_id = mxINT16_CLASS;
  using MatlabType = mxInt16;
  static MatlabType* GetData(mxArray* pa) { return mxGetInt16s(pa); }
};

template <>
struct MatlabTraits<Int32Type> {
  static constexpr mxClassID matlab_class_id = mxINT32_CLASS;
  using MatlabType = mxInt32;
  static MatlabType* GetData(mxArray* pa) { return mxGetInt32s(pa); }
};

template <>
struct MatlabTraits<Int64Type> {
  static constexpr mxClassID matlab_class_id = mxINT64_CLASS;
  using MatlabType = mxInt64;
  static MatlabType* GetData(mxArray* pa) { return mxGetInt64s(pa); }
};

}  // namespace matlab
}  // namespace arrow

#endif  // ARROW_MATLAB_MATLAB_TRAITS_H