| 1 | /* This file defines an internal function for processing default arguments |
| 2 | with shadow classes. |
| 3 | |
| 4 | There seems to be no straightforward way to write a shadow functions |
| 5 | involving default arguments. For example : |
| 6 | |
| 7 | def foo(arg1,arg2,*args): |
| 8 | shadowc.foo(arg1,arg2,args) |
| 9 | |
| 10 | This fails because args is now a tuple and SWIG doesn't know what to |
| 11 | do with it. |
| 12 | |
| 13 | This file allows a different approach : |
| 14 | |
| 15 | def foo(arg1,arg2,*args): |
| 16 | shadowc.__call_defarg(shadowc.foo,(arg1,arg2,)+args) |
| 17 | |
| 18 | Basically, we form a new tuple from the object, call this special |
| 19 | __call_defarg method and it passes control to the real wrapper function. |
| 20 | An ugly hack, but it works. |
| 21 | */ |
| 22 | |
| 23 | SWIGINTERN PyObject *swig_call_defargs(PyObject *self, PyObject *args) { |
| 24 | PyObject *func; |
| 25 | PyObject *parms; |
| 26 | |
| 27 | if (!PyArg_ParseTuple(args,"OO",&func,&parms)) |
| 28 | return NULL; |
| 29 | |
| 30 | if (!PyCallable_Check(func)) { |
| 31 | PyErr_SetString(PyExc_TypeError, "__call_defarg : Need a callable object!"); |
| 32 | return NULL; |
| 33 | } |
| 34 | return PyEval_CallObject(func,parms); |
| 35 | |
| 36 | } |