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[user-type] get class object for type exposed through boost python #251

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Aug 19, 2021
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[user-type] get class object for type exposed through boost python #251

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22 changes: 22 additions & 0 deletions include/eigenpy/user-type.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -289,6 +289,28 @@ namespace eigenpy
return true;
}


/// \brief Get the class object for a wrapped type that has been exposed
/// through Boost.Python.
template <typename T>
boost::python::object getInstanceClass()
{
// Query into the registry for type T.
namespace bp = boost::python;
bp::type_info type = bp::type_id<T>();
const bp::converter::registration* registration =
bp::converter::registry::query(type);

// If the class is not registered, return None.
if (!registration) {
//std::cerr<<"Class Not Registered. Returning Empty."<<std::endl;
return bp::object();
}

bp::handle<PyTypeObject> handle(bp::borrowed(registration->get_class_object()));
return bp::object(handle);
}

template<typename Scalar>
int registerNewType(PyTypeObject * py_type_ptr = NULL)
{
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