torch/csrc/jit/generic_if.h

// TODO: I'm pretty sure Constness can be done with C++ templates, ala
// std::is_const, but no time to work it out...
#define GENERIC_IF(Constness, FullKind, x, Kind) \
  auto && __match_key = x; \
  switch(__match_key->kind()) { \
    case FullKind: { \
      auto * value = static_cast<Constness ::torch::jit::Kind*>(__match_key); (void) value;
#define GENERIC_ELSEIF(Constness, FullKind, Kind) \
    } break; \
    case FullKind: { \
      auto * value = static_cast<Constness ::torch::jit::Kind*>(__match_key); (void) value;
#define GENERIC_ELSE() \
    } break; \
    default: {
#define GENERIC_END() \
    } break; \
  };