callback_python.cpp

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/** @file
*   @author Bram de Greve (bram@cocamware.com)
*   @author Tom De Muer (tom@cocamware.com)
*
*   *** BEGIN LICENSE INFORMATION ***
*
*   The contents of this file are subject to the Common Public Attribution License
*   Version 1.0 (the "License"); you may not use this file except in compliance with
*   the License. You may obtain a copy of the License at
*   http://lass.sourceforge.net/cpal-license. The License is based on the
*   Mozilla Public License Version 1.1 but Sections 14 and 15 have been added to cover
*   use of software over a computer network and provide for limited attribution for
*   the Original Developer. In addition, Exhibit A has been modified to be consistent
*   with Exhibit B.
*
*   Software distributed under the License is distributed on an "AS IS" basis, WITHOUT
*   WARRANTY OF ANY KIND, either express or implied. See the License for the specific
*   language governing rights and limitations under the License.
*
*   The Original Code is LASS - Library of Assembled Shared Sources.
*
*   The Initial Developer of the Original Code is Bram de Greve and Tom De Muer.
*   The Original Developer is the Initial Developer.
*
*   All portions of the code written by the Initial Developer are:
*   Copyright (C) 2025 the Initial Developer.
*   All Rights Reserved.
*
*   Contributor(s):
*
*   Alternatively, the contents of this file may be used under the terms of the
*   GNU General Public License Version 2 or later (the GPL), in which case the
*   provisions of GPL are applicable instead of those above.  If you wish to allow use
*   of your version of this file only under the terms of the GPL and not to allow
*   others to use your version of this file under the CPAL, indicate your decision by
*   deleting the provisions above and replace them with the notice and other
*   provisions required by the GPL License. If you do not delete the provisions above,
*   a recipient may use your version of this file under either the CPAL or the GPL.
*
*   *** END LICENSE INFORMATION ***
*/
 
#include "python_common.h"
#include "callback_python.h"
#include "pyobject_macros.h"
#include "_lass_module.h"
 
namespace lass::python::impl
{
 
PY_DECLARE_CLASS(PyCallback)
LASS_EXECUTE_BEFORE_MAIN_EX(Function_executeBeforeMain,
    PyCallback::_lassPyClassDef.setSlot(Py_tp_call, &PyCallback::_tp_call);
)
 
PyCallback::PyCallback(TPimpl pimpl)
{
    impl::initLassModule();
    impl::fixObjectType(this);
    pimpl_ = std::move(pimpl);
}
 
PyObject* PyCallback::_tp_call(PyObject* self, PyObject* args, PyObject* kwargs)
{
    if (!PyType_IsSubtype(self->ob_type, PyCallback::_lassPyClassDef.type()))
    {
        PyErr_SetString(PyExc_TypeError, "Not a _lass.PyCallback");
        return 0;
    }
    if (kwargs)
    {
        if (!PyDict_CheckExact(kwargs))
        {
            PyErr_BadInternalCall();
            return 0;
        }
        if (PyDict_Size(kwargs) != 0)
        {
            PyErr_SetString(PyExc_TypeError, "function takes no keyword arguments");
            return 0;
        }
    }
    return static_cast<PyCallback*>(self)->pimpl_->call(args);
}
 
}