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python wrapper. No new function if no constructor

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- When a type has no python constructor (E.g. parameters)
  do not define the xxx_new function.
- Leads to a better error message when trying to construct
  such an object in python.
- TODO : check there is no issue with serialization ?
This commit is contained in:
Olivier Parcollet 2014-07-27 16:27:16 +02:00
parent 522477eb2d
commit be1b9b6f19
1 changed files with 8 additions and 1 deletions
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9
pytriqs/wrap_generator/wrapper.mako.cpp
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@ -148,6 +148,8 @@ typedef struct {
${c.c_type} * _c; ${c.c_type} * _c;
} ${c.py_type}; } ${c.py_type};
## The new function, only if there is constructor
%if c.constructor:
// the new // the new
static PyObject* ${c.py_type}_new(PyTypeObject *type, PyObject *args, PyObject *kwds) { static PyObject* ${c.py_type}_new(PyTypeObject *type, PyObject *args, PyObject *kwds) {
${c.py_type} *self; ${c.py_type} *self;
@ -169,6 +171,7 @@ static PyObject* ${c.py_type}_new(PyTypeObject *type, PyObject *args, PyObject *
} }
return (PyObject *)self; return (PyObject *)self;
} }
%endif
// dealloc // dealloc
static void ${c.py_type}_dealloc(${c.py_type}* self) { static void ${c.py_type}_dealloc(${c.py_type}* self) {
@ -366,7 +369,11 @@ static PyTypeObject ${c.py_type}Type = {
0, /* tp_dictoffset */ 0, /* tp_dictoffset */
${"(initproc)%s___init__"%c.py_type if c.constructor else 0}, /* tp_init */ ${"(initproc)%s___init__"%c.py_type if c.constructor else 0}, /* tp_init */
0, /* tp_alloc */ 0, /* tp_alloc */
${c.py_type}_new, /* tp_new */ %if c.constructor:
${c.py_type}_new, /* tp_new */
%else:
0, /* tp_new */
%endif
}; };
//--------------------- converters for the class c ----------------------------- //--------------------- converters for the class c -----------------------------