static PyObject*
_BoundSignal_New( PyObject* owner, PyObject* objref )
{
PyObjectPtr ownerptr( owner, true );
PyObjectPtr objrefptr( objref, true );
PyObjectPtr bsigptr;
if( numfree > 0 )
{
PyObject* o = reinterpret_cast<PyObject*>( freelist[ --numfree ] );
_Py_NewReference( o );
bsigptr = o;
}
else
{
bsigptr = PyType_GenericAlloc( &BoundSignal_Type, 0 );
if( !bsigptr )
return 0;
}
BoundSignal* bsig = reinterpret_cast<BoundSignal*>( bsigptr.get() );
bsig->owner = ownerptr.release();
bsig->objref = objrefptr.release();
return bsigptr.release();
}
static PyObject*
load_dynamic_attr( PyObject* obj, PyObject* name, PyObject* tracer=0 )
{
PyTypeObject* tp;
PyObject** dictptr;
PyObjectPtr descr;
descrgetfunc descr_f;
PyObjectPtr objptr( newref( obj ) );
// The body of this loop is PyObject_GenericGetAttr, modified to
// use smart pointers and _PyObject_GetDictPtr, and run a tracer.
while( objptr.get() != Py_None )
{
tp = Py_TYPE( objptr.get() );
// Data descriptor
descr_f = 0;
descr = xnewref( _PyType_Lookup( tp, name ) );
if( descr && PyType_HasFeature( descr.get()->ob_type, Py_TPFLAGS_HAVE_CLASS ) )
{
descr_f = descr.get()->ob_type->tp_descr_get;
if( descr_f && PyDescr_IsData( descr.get() ) )
{
PyObjectPtr res(
descr_f( descr.get(), objptr.get(), pyobject_cast( tp ) )
);
if( !res )
maybe_translate_key_error();
else if( tracer && !run_tracer( tracer, objptr.get(), name, res.get() ) )
return 0;
return res.release();
}
}
// Instance dictionary
dictptr = _PyObject_GetDictPtr( objptr.get() );
if( dictptr && *dictptr )
{
PyObject* item = PyDict_GetItem( *dictptr, name );
if( item )
{
if( tracer && !run_tracer( tracer, objptr.get(), name, item ) )
return 0;
return newref( item );
}
}
// Non-data descriptor
if( descr_f )
{
PyObjectPtr res(
descr_f( descr.get(), objptr.get(), pyobject_cast( tp ) )
);
if( !res )
maybe_translate_key_error();
else if( tracer && !run_tracer( tracer, objptr.get(), name, res.get() ) )
return 0;
return res.release();
}
// Non-readable descriptor
if( descr )
{
if( tracer && !run_tracer( tracer, objptr.get(), name, descr.get() ) )
return 0;
return descr.release();
}
// Step up to the parent object
objptr = PyObject_GetAttr( objptr.get(), parent_str );
if( !objptr )
return 0;
}
return 0;
}
