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| 1 /* This file defines an internal function for processing default arguments |
| 2 with proxy classes. |
| 3 |
| 4 There seems to be no straightforward way to write proxy functions |
| 5 involving default arguments. For example : |
| 6 |
| 7 def foo(arg1,arg2,*args): |
| 8 proxyc.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 proxyc.__call_defarg(proxyc.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 SWIG_PYTHON_THREAD_BEGIN_BLOCK; |
| 32 PyErr_SetString(PyExc_TypeError, "__call_defarg : Need a callable object!"); |
| 33 SWIG_PYTHON_THREAD_END_BLOCK; |
| 34 return NULL; |
| 35 } |
| 36 return PyEval_CallObject(func,parms); |
| 37 } |
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