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/*
* $Id$
*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program 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 2
* of the License, or (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/python/intern/bpy_traceback.c
* \ingroup pythonintern
*/
#include <Python.h>
#include <frameobject.h>
#include "bpy_traceback.h"
static const char *traceback_filepath(PyTracebackObject *tb)
{
return _PyUnicode_AsString(tb->tb_frame->f_code->co_filename);
}
/* copied from pythonrun.c, 3.2.0 */
static int
parse_syntax_error(PyObject *err, PyObject **message, const char **filename,
int *lineno, int *offset, const char **text)
{
long hold;
PyObject *v;
/* old style errors */
if (PyTuple_Check(err))
return PyArg_ParseTuple(err, "O(ziiz)", message, filename,
lineno, offset, text);
/* new style errors. `err' is an instance */
if (! (v = PyObject_GetAttrString(err, "msg")))
goto finally;
*message = v;
if (!(v = PyObject_GetAttrString(err, "filename")))
goto finally;
if (v == Py_None)
*filename = NULL;
else if (! (*filename = _PyUnicode_AsString(v)))
goto finally;
Py_DECREF(v);
if (!(v = PyObject_GetAttrString(err, "lineno")))
goto finally;
hold = PyLong_AsLong(v);
Py_DECREF(v);
v = NULL;
if (hold < 0 && PyErr_Occurred())
goto finally;
*lineno = (int)hold;
if (!(v = PyObject_GetAttrString(err, "offset")))
goto finally;
if (v == Py_None) {
*offset = -1;
Py_DECREF(v);
v = NULL;
}
else {
hold = PyLong_AsLong(v);
Py_DECREF(v);
v = NULL;
if (hold < 0 && PyErr_Occurred())
goto finally;
*offset = (int)hold;
}
if (!(v = PyObject_GetAttrString(err, "text")))
goto finally;
if (v == Py_None)
*text = NULL;
else if (!PyUnicode_Check(v) ||
!(*text = _PyUnicode_AsString(v)))
goto finally;
Py_DECREF(v);
return 1;
finally:
Py_XDECREF(v);
return 0;
}
/* end copied function! */
void python_script_error_jump(const char *filepath, int *lineno, int *offset)
{
PyObject *exception, *value;
PyTracebackObject *tb;
*lineno= -1;
*offset= 0;
PyErr_Fetch(&exception, &value, (PyObject **)&tb);
if(exception && PyErr_GivenExceptionMatches(exception, PyExc_SyntaxError)) {
/* no traceback available when SyntaxError.
* python has no api's to this. reference parse_syntax_error() from pythonrun.c */
PyErr_NormalizeException(&exception, &value, (PyObject **)&tb);
PyErr_Restore(exception, value, (PyObject *)tb); /* takes away reference! */
if(value) { /* should always be true */
PyObject *message;
const char *filename, *text;
if(parse_syntax_error(value, &message, &filename, lineno, offset, &text)) {
/* python adds a '/', prefix, so check for both */
if( (strcmp(filename, filepath) == 0) ||
((filename[0] == '\\' || filename[0] == '/') && strcmp(filename + 1, filepath) == 0)
) {
/* good */
}
else {
*lineno= -1;
}
}
else {
*lineno= -1;
}
}
/* this avoids an abort in Python 2.3's garbage collecting */
}
else {
PyErr_NormalizeException(&exception, &value, (PyObject **)&tb);
PyErr_Restore(exception, value, (PyObject *)tb); /* takes away reference! */
PyErr_Print();
for(tb= (PyTracebackObject *)PySys_GetObject("last_traceback"); tb && (PyObject *)tb != Py_None; tb= tb->tb_next) {
if(strcmp(traceback_filepath(tb), filepath) != 0) {
*lineno= tb->tb_lineno;
break;
}
}
}
}
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