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// SIP support for std::vector
// by Giovanni Bajo
// Public domain
// ****************************************************
// SIP generic implementation for std::vector<>
// ****************************************************
// ALas, this template-based generic implementation is valid only
// if the element type is a SIP-wrapped type. For basic types (int, double, etc.)
// we are forced to cut & paste to provide a specialization.
template<TYPE>
%MappedType vector<TYPE>
{
%TypeHeaderCode
#include <vector>
%End
%ConvertFromTypeCode
PyObject *l;
// Create the Python list of the correct length.
if ((l = PyList_New(sipCpp -> size())) == NULL)
return NULL;
// Go through each element in the C++ instance and convert it to a
// wrapped P2d.
for (int i = 0; i < (int)sipCpp -> size(); ++i)
{
TYPE *cpp = new TYPE(sipCpp -> at(i));
PyObject *pobj;
// Get the Python wrapper for the Type instance, creating a new
// one if necessary, and handle any ownership transfer.
if ((pobj = BALL_CONVERT_FROM_INSTANCE(cpp, TYPE, sipTransferObj)) == NULL)
{
// There was an error so garbage collect the Python list.
Py_DECREF(l);
return NULL;
}
// Add the wrapper to the list.
PyList_SET_ITEM(l, i, pobj);
}
// Return the Python list.
return l;
%End
%ConvertToTypeCode
// Check if type is compatible
if (sipIsErr == NULL)
{
// Must be any iterable
PyObject *i = PyObject_GetIter(sipPy);
bool iterable = (i != NULL);
Py_XDECREF(i);
return iterable;
}
// Iterate over the object
PyObject *iterator = PyObject_GetIter(sipPy);
PyObject *item;
std::vector<TYPE> *V = new std::vector<TYPE>();
while ((item = PyIter_Next(iterator)))
{
if (!BALL_CAN_CONVERT_TO_INSTANCE(item, TYPE))
{
PyErr_Format(PyExc_TypeError, "object in iterable cannot be converted to TYPE");
*sipIsErr = 1;
break;
}
int state;
TYPE* p = BALL_CONVERT_TO_INSTANCE(item, TYPE, state);
if (!*sipIsErr)
V->push_back(*p);
BALL_RELEASE_INSTANCE(p, TYPE, state);
Py_DECREF(item);
}
Py_DECREF(iterator);
if (*sipIsErr)
{
delete V;
return 0;
}
*sipCppPtr = V;
return sipGetState(sipTransferObj);
%End
};
template<TYPE *>
%MappedType vector<TYPE *>
{
%TypeHeaderCode
#include <vector>
%End
%ConvertFromTypeCode
PyObject *l;
// Create the Python list of the correct length.
if ((l = PyList_New(sipCpp -> size())) == NULL)
return NULL;
// Go through each element in the C++ instance and convert it to a
// wrapped P2d.
int i = 0;
for (std::vector<TYPE *>::const_iterator it = sipCpp->begin(); it != sipCpp -> end(); ++it, ++i)
{
TYPE *cpp = *it;
PyObject *pobj;
// Get the Python wrapper for the Type instance, creating a new
// one if necessary, and handle any ownership transfer.
if ((pobj = BALL_CONVERT_FROM_INSTANCE(cpp, TYPE, sipTransferObj)) == NULL)
{
// There was an error so garbage collect the Python list.
Py_DECREF(l);
return NULL;
}
// Add the wrapper to the list.
PyList_SET_ITEM(l, i, pobj);
}
// Return the Python list.
return l;
%End
%ConvertToTypeCode
// Check if type is compatible
if (sipIsErr == NULL)
{
// Must be any iterable
PyObject *i = PyObject_GetIter(sipPy);
bool iterable = (i != NULL);
Py_XDECREF(i);
return iterable;
}
// Iterate over the object
PyObject *iterator = PyObject_GetIter(sipPy);
PyObject *item;
std::vector<TYPE *> *V = new std::vector<TYPE *>();
while ((item = PyIter_Next(iterator)))
{
if (!BALL_CAN_CONVERT_TO_INSTANCE(item, TYPE))
{
PyErr_Format(PyExc_TypeError, "object in iterable cannot be converted to TYPE");
*sipIsErr = 1;
break;
}
int state;
TYPE* p = reinterpret_cast<TYPE*>(BALL_CONVERT_TO_INSTANCE(item, TYPE, state));
if (*sipIsErr) {
delete V;
return 0;
} else {
V->push_back(p);
}
}
*sipCppPtr = V;
return sipGetState(sipTransferObj);
%End
};
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