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%module python_pickle
%include <std_string.i>
%extend PickleMe {
#if 0
// Note: %pythoncode can't be used with -builtin
%pythoncode %{
def __reduce__(self):
print "In Python __reduce__"
return (type(self), (self.msg, ))
%}
#else
// Equivalent to Python code above
PyObject *__reduce__() {
if (trace)
std::cout << "In C++ __reduce__" << std::endl;
PyObject *args = PyTuple_New(1);
PyTuple_SetItem(args, 0, SWIG_From_std_string(self->msg));
swig_type_info *ty = SWIGTYPE_p_PickleMe;
SwigPyClientData *data = (SwigPyClientData *)ty->clientdata;
#if defined(SWIGPYTHON_BUILTIN)
PyObject *callable = (PyObject *)data->pytype;
#else
PyObject *callable = data->klass;
#endif
Py_IncRef(callable);
PyObject *ret = PyTuple_New(2);
PyTuple_SetItem(ret, 0, callable);
PyTuple_SetItem(ret, 1, args);
return ret;
}
#endif
}
%inline %{
#include <iostream>
bool trace = false;
struct PickleMe {
std::string msg;
PickleMe(const std::string& msg) : msg(msg) {
if (trace)
std::cout << "In C++ constructor " << " [" << msg << "]" << std::endl;
}
};
struct NotForPickling {
std::string msg;
NotForPickling(const std::string& msg) : msg(msg) {}
};
%}
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