Mercurial > pytave
view exceptions.cc @ 381:f777dca58361
Rewrite exception handling using Python/C API
* exceptions.cc (pytave::fetch_exception_message): Rewrite to use native
Python/C API, replaces use of Boost.Python.
author | NVS Abhilash <nvs232@gmail.com> |
---|---|
date | Sun, 02 Apr 2017 05:58:35 +0530 |
parents | ef057c4e6aa2 |
children | d36f06f07082 |
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/* Copyright (C) 2015-2016 Mike Miller Copyright (C) 2008 David Grundberg, HÃ¥kan Fors Nilsson This file is part of Pytave. Pytave is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. Pytave is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Pytave; see the file COPYING. If not, see <http://www.gnu.org/licenses/>. */ #if defined (HAVE_CONFIG_H) # include <config.h> #endif #include "exceptions.h" #include "oct-py-eval.h" #include "oct-py-types.h" namespace pytave { PyObject *octave_error_exception::excclass = 0; PyObject *value_convert_exception::excclass = 0; PyObject *object_convert_exception::excclass = 0; PyObject *octave_parse_exception::excclass = 0; PyObject *variable_name_exception::excclass = 0; bool init_exceptions (void) { return (octave_error_exception::init () && value_convert_exception::init () && object_convert_exception::init () && octave_parse_exception::init () && variable_name_exception::init ()); } std::string fetch_exception_message (void) { PyObject *ptype, *pvalue, *ptraceback; PyObject *formatted_list, *pargs; PyErr_Fetch (&ptype, &pvalue, &ptraceback); PyErr_NormalizeException (&ptype, &pvalue, &ptraceback); std::string message; pargs = PyTuple_New (2); PyTuple_SetItem (pargs, 0, ptype); PyTuple_SetItem (pargs, 1, pvalue); formatted_list = py_call_function \ ("traceback.format_exception_only", pargs); Py_DECREF (pargs); if (formatted_list && PyList_Check (formatted_list)) { int len = PyList_Size (formatted_list); for (int i = 0; i < len; i++) message.append (extract_py_str (PyList_GetItem (formatted_list, i))); Py_DECREF (formatted_list); } else { PyErr_Restore (ptype, pvalue, ptraceback); PyErr_Print (); message = std::string ("exceptions.cc (pytave::fetch_exception_message): Cannot call 'format_exceptions_only' for the traceback"); } return message; } }