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Changing PYBIND11_SMART_HOLDER_TYPE_CASTERS to use __VA_ARGS__. #2954

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Merged
merged 1 commit into from
Apr 15, 2021
Merged

Changing PYBIND11_SMART_HOLDER_TYPE_CASTERS to use __VA_ARGS__. #2954

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22 changes: 11 additions & 11 deletions include/pybind11/detail/smart_holder_type_casters.h
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Original file line number Diff line number Diff line change
Expand Up @@ -773,28 +773,28 @@ struct smart_holder_type_caster<std::unique_ptr<T const, D>>

#ifndef PYBIND11_USE_SMART_HOLDER_AS_DEFAULT

# define PYBIND11_SMART_HOLDER_TYPE_CASTERS(T) \
# define PYBIND11_SMART_HOLDER_TYPE_CASTERS(...) \
namespace pybind11 { \
namespace detail { \
template <> \
class type_caster<T> : public smart_holder_type_caster<T> {}; \
class type_caster<__VA_ARGS__> : public smart_holder_type_caster<__VA_ARGS__> {}; \
template <> \
class type_caster<std::shared_ptr<T>> \
: public smart_holder_type_caster<std::shared_ptr<T>> {}; \
class type_caster<std::shared_ptr<__VA_ARGS__>> \
: public smart_holder_type_caster<std::shared_ptr<__VA_ARGS__>> {}; \
template <> \
class type_caster<std::shared_ptr<T const>> \
: public smart_holder_type_caster<std::shared_ptr<T const>> {}; \
class type_caster<std::shared_ptr<__VA_ARGS__ const>> \
: public smart_holder_type_caster<std::shared_ptr<__VA_ARGS__ const>> {}; \
template <typename D> \
class type_caster<std::unique_ptr<T, D>> \
: public smart_holder_type_caster<std::unique_ptr<T, D>> {}; \
class type_caster<std::unique_ptr<__VA_ARGS__, D>> \
: public smart_holder_type_caster<std::unique_ptr<__VA_ARGS__, D>> {}; \
template <typename D> \
class type_caster<std::unique_ptr<T const, D>> \
: public smart_holder_type_caster<std::unique_ptr<T const, D>> {}; \
class type_caster<std::unique_ptr<__VA_ARGS__ const, D>> \
: public smart_holder_type_caster<std::unique_ptr<__VA_ARGS__ const, D>> {}; \
} \
}
#else

# define PYBIND11_SMART_HOLDER_TYPE_CASTERS(T)
# define PYBIND11_SMART_HOLDER_TYPE_CASTERS(...)

template <typename T>
class type_caster_for_class_ : public smart_holder_type_caster<T> {};
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6 changes: 3 additions & 3 deletions include/pybind11/smart_holder.h
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Original file line number Diff line number Diff line change
Expand Up @@ -10,10 +10,10 @@

PYBIND11_NAMESPACE_BEGIN(PYBIND11_NAMESPACE)

// Supports easier switching between py::class_<U> and py::class_<U, py::smart_holder>:
// Supports easier switching between py::class_<T> and py::class_<T, py::smart_holder>:
// users can simply replace the `_` in `class_` with `h` or vice versa.
// Note though that the PYBIND11_SMART_HOLDER_TYPE_CASTERS(U) macro also needs to be
// added (for `classh`) or commented out (for `class_`).
// Note though that the PYBIND11_SMART_HOLDER_TYPE_CASTERS(T) macro also needs to be
// added (for `classh`) or commented out (when falling back to `class_`).
template <typename type_, typename... options>
class classh : public class_<type_, smart_holder, options...> {
public:
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