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-rw-r--r--Python/traceback.c560
1 files changed, 280 insertions, 280 deletions
diff --git a/Python/traceback.c b/Python/traceback.c
index 1de2df6..51a9226 100644
--- a/Python/traceback.c
+++ b/Python/traceback.c
@@ -30,303 +30,303 @@ static PyMethodDef tb_methods[] = {
};
static PyMemberDef tb_memberlist[] = {
- {"tb_next", T_OBJECT, OFF(tb_next), READONLY},
- {"tb_frame", T_OBJECT, OFF(tb_frame), READONLY},
- {"tb_lasti", T_INT, OFF(tb_lasti), READONLY},
- {"tb_lineno", T_INT, OFF(tb_lineno), READONLY},
- {NULL} /* Sentinel */
+ {"tb_next", T_OBJECT, OFF(tb_next), READONLY},
+ {"tb_frame", T_OBJECT, OFF(tb_frame), READONLY},
+ {"tb_lasti", T_INT, OFF(tb_lasti), READONLY},
+ {"tb_lineno", T_INT, OFF(tb_lineno), READONLY},
+ {NULL} /* Sentinel */
};
static void
tb_dealloc(PyTracebackObject *tb)
{
- PyObject_GC_UnTrack(tb);
- Py_TRASHCAN_SAFE_BEGIN(tb)
- Py_XDECREF(tb->tb_next);
- Py_XDECREF(tb->tb_frame);
- PyObject_GC_Del(tb);
- Py_TRASHCAN_SAFE_END(tb)
+ PyObject_GC_UnTrack(tb);
+ Py_TRASHCAN_SAFE_BEGIN(tb)
+ Py_XDECREF(tb->tb_next);
+ Py_XDECREF(tb->tb_frame);
+ PyObject_GC_Del(tb);
+ Py_TRASHCAN_SAFE_END(tb)
}
static int
tb_traverse(PyTracebackObject *tb, visitproc visit, void *arg)
{
- Py_VISIT(tb->tb_next);
- Py_VISIT(tb->tb_frame);
- return 0;
+ Py_VISIT(tb->tb_next);
+ Py_VISIT(tb->tb_frame);
+ return 0;
}
static void
tb_clear(PyTracebackObject *tb)
{
- Py_CLEAR(tb->tb_next);
- Py_CLEAR(tb->tb_frame);
+ Py_CLEAR(tb->tb_next);
+ Py_CLEAR(tb->tb_frame);
}
PyTypeObject PyTraceBack_Type = {
- PyVarObject_HEAD_INIT(&PyType_Type, 0)
- "traceback",
- sizeof(PyTracebackObject),
- 0,
- (destructor)tb_dealloc, /*tp_dealloc*/
- 0, /*tp_print*/
- 0, /*tp_getattr*/
- 0, /*tp_setattr*/
- 0, /*tp_reserved*/
- 0, /*tp_repr*/
- 0, /*tp_as_number*/
- 0, /*tp_as_sequence*/
- 0, /*tp_as_mapping*/
- 0, /* tp_hash */
- 0, /* tp_call */
- 0, /* tp_str */
- PyObject_GenericGetAttr, /* tp_getattro */
- 0, /* tp_setattro */
- 0, /* tp_as_buffer */
- Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,/* tp_flags */
- 0, /* tp_doc */
- (traverseproc)tb_traverse, /* tp_traverse */
- (inquiry)tb_clear, /* tp_clear */
- 0, /* tp_richcompare */
- 0, /* tp_weaklistoffset */
- 0, /* tp_iter */
- 0, /* tp_iternext */
- tb_methods, /* tp_methods */
- tb_memberlist, /* tp_members */
- 0, /* tp_getset */
- 0, /* tp_base */
- 0, /* tp_dict */
+ PyVarObject_HEAD_INIT(&PyType_Type, 0)
+ "traceback",
+ sizeof(PyTracebackObject),
+ 0,
+ (destructor)tb_dealloc, /*tp_dealloc*/
+ 0, /*tp_print*/
+ 0, /*tp_getattr*/
+ 0, /*tp_setattr*/
+ 0, /*tp_reserved*/
+ 0, /*tp_repr*/
+ 0, /*tp_as_number*/
+ 0, /*tp_as_sequence*/
+ 0, /*tp_as_mapping*/
+ 0, /* tp_hash */
+ 0, /* tp_call */
+ 0, /* tp_str */
+ PyObject_GenericGetAttr, /* tp_getattro */
+ 0, /* tp_setattro */
+ 0, /* tp_as_buffer */
+ Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,/* tp_flags */
+ 0, /* tp_doc */
+ (traverseproc)tb_traverse, /* tp_traverse */
+ (inquiry)tb_clear, /* tp_clear */
+ 0, /* tp_richcompare */
+ 0, /* tp_weaklistoffset */
+ 0, /* tp_iter */
+ 0, /* tp_iternext */
+ tb_methods, /* tp_methods */
+ tb_memberlist, /* tp_members */
+ 0, /* tp_getset */
+ 0, /* tp_base */
+ 0, /* tp_dict */
};
static PyTracebackObject *
newtracebackobject(PyTracebackObject *next, PyFrameObject *frame)
{
- PyTracebackObject *tb;
- if ((next != NULL && !PyTraceBack_Check(next)) ||
- frame == NULL || !PyFrame_Check(frame)) {
- PyErr_BadInternalCall();
- return NULL;
- }
- tb = PyObject_GC_New(PyTracebackObject, &PyTraceBack_Type);
- if (tb != NULL) {
- Py_XINCREF(next);
- tb->tb_next = next;
- Py_XINCREF(frame);
- tb->tb_frame = frame;
- tb->tb_lasti = frame->f_lasti;
- tb->tb_lineno = PyFrame_GetLineNumber(frame);
- PyObject_GC_Track(tb);
- }
- return tb;
+ PyTracebackObject *tb;
+ if ((next != NULL && !PyTraceBack_Check(next)) ||
+ frame == NULL || !PyFrame_Check(frame)) {
+ PyErr_BadInternalCall();
+ return NULL;
+ }
+ tb = PyObject_GC_New(PyTracebackObject, &PyTraceBack_Type);
+ if (tb != NULL) {
+ Py_XINCREF(next);
+ tb->tb_next = next;
+ Py_XINCREF(frame);
+ tb->tb_frame = frame;
+ tb->tb_lasti = frame->f_lasti;
+ tb->tb_lineno = PyFrame_GetLineNumber(frame);
+ PyObject_GC_Track(tb);
+ }
+ return tb;
}
int
PyTraceBack_Here(PyFrameObject *frame)
{
- PyThreadState *tstate = PyThreadState_GET();
- PyTracebackObject *oldtb = (PyTracebackObject *) tstate->curexc_traceback;
- PyTracebackObject *tb = newtracebackobject(oldtb, frame);
- if (tb == NULL)
- return -1;
- tstate->curexc_traceback = (PyObject *)tb;
- Py_XDECREF(oldtb);
- return 0;
+ PyThreadState *tstate = PyThreadState_GET();
+ PyTracebackObject *oldtb = (PyTracebackObject *) tstate->curexc_traceback;
+ PyTracebackObject *tb = newtracebackobject(oldtb, frame);
+ if (tb == NULL)
+ return -1;
+ tstate->curexc_traceback = (PyObject *)tb;
+ Py_XDECREF(oldtb);
+ return 0;
}
static int
_Py_FindSourceFile(const char* filename, char* namebuf, size_t namelen, int open_flags)
{
- int i;
- int fd = -1;
- PyObject *v;
- Py_ssize_t _npath;
- int npath;
- size_t taillen;
- PyObject *syspath;
- const char* path;
- const char* tail;
- Py_ssize_t len;
-
- /* Search tail of filename in sys.path before giving up */
- tail = strrchr(filename, SEP);
- if (tail == NULL)
- tail = filename;
- else
- tail++;
- taillen = strlen(tail);
-
- syspath = PySys_GetObject("path");
- if (syspath == NULL || !PyList_Check(syspath))
- return -1;
- _npath = PyList_Size(syspath);
- npath = Py_SAFE_DOWNCAST(_npath, Py_ssize_t, int);
-
- for (i = 0; i < npath; i++) {
- v = PyList_GetItem(syspath, i);
- if (v == NULL) {
- PyErr_Clear();
- break;
- }
- if (!PyUnicode_Check(v))
- continue;
- path = _PyUnicode_AsStringAndSize(v, &len);
- if (len + 1 + (Py_ssize_t)taillen >= (Py_ssize_t)namelen - 1)
- continue; /* Too long */
- strcpy(namebuf, path);
- if (strlen(namebuf) != len)
- continue; /* v contains '\0' */
- if (len > 0 && namebuf[len-1] != SEP)
- namebuf[len++] = SEP;
- strcpy(namebuf+len, tail);
- Py_BEGIN_ALLOW_THREADS
- fd = open(namebuf, open_flags);
- Py_END_ALLOW_THREADS
- if (0 <= fd) {
- return fd;
- }
- }
- return -1;
+ int i;
+ int fd = -1;
+ PyObject *v;
+ Py_ssize_t _npath;
+ int npath;
+ size_t taillen;
+ PyObject *syspath;
+ const char* path;
+ const char* tail;
+ Py_ssize_t len;
+
+ /* Search tail of filename in sys.path before giving up */
+ tail = strrchr(filename, SEP);
+ if (tail == NULL)
+ tail = filename;
+ else
+ tail++;
+ taillen = strlen(tail);
+
+ syspath = PySys_GetObject("path");
+ if (syspath == NULL || !PyList_Check(syspath))
+ return -1;
+ _npath = PyList_Size(syspath);
+ npath = Py_SAFE_DOWNCAST(_npath, Py_ssize_t, int);
+
+ for (i = 0; i < npath; i++) {
+ v = PyList_GetItem(syspath, i);
+ if (v == NULL) {
+ PyErr_Clear();
+ break;
+ }
+ if (!PyUnicode_Check(v))
+ continue;
+ path = _PyUnicode_AsStringAndSize(v, &len);
+ if (len + 1 + (Py_ssize_t)taillen >= (Py_ssize_t)namelen - 1)
+ continue; /* Too long */
+ strcpy(namebuf, path);
+ if (strlen(namebuf) != len)
+ continue; /* v contains '\0' */
+ if (len > 0 && namebuf[len-1] != SEP)
+ namebuf[len++] = SEP;
+ strcpy(namebuf+len, tail);
+ Py_BEGIN_ALLOW_THREADS
+ fd = open(namebuf, open_flags);
+ Py_END_ALLOW_THREADS
+ if (0 <= fd) {
+ return fd;
+ }
+ }
+ return -1;
}
int
_Py_DisplaySourceLine(PyObject *f, const char *filename, int lineno, int indent)
{
- int err = 0;
- int fd;
- int i;
- char *found_encoding;
- char *encoding;
- PyObject *fob = NULL;
- PyObject *lineobj = NULL;
+ int err = 0;
+ int fd;
+ int i;
+ char *found_encoding;
+ char *encoding;
+ PyObject *fob = NULL;
+ PyObject *lineobj = NULL;
#ifdef O_BINARY
- const int open_flags = O_RDONLY | O_BINARY; /* necessary for Windows */
+ const int open_flags = O_RDONLY | O_BINARY; /* necessary for Windows */
#else
- const int open_flags = O_RDONLY;
+ const int open_flags = O_RDONLY;
#endif
- char buf[MAXPATHLEN+1];
- Py_UNICODE *u, *p;
- Py_ssize_t len;
-
- /* open the file */
- if (filename == NULL)
- return 0;
- Py_BEGIN_ALLOW_THREADS
- fd = open(filename, open_flags);
- Py_END_ALLOW_THREADS
- if (fd < 0) {
- fd = _Py_FindSourceFile(filename, buf, sizeof(buf), open_flags);
- if (fd < 0)
- return 0;
- filename = buf;
- }
-
- /* use the right encoding to decode the file as unicode */
- found_encoding = PyTokenizer_FindEncoding(fd);
- encoding = (found_encoding != NULL) ? found_encoding :
- (char*)PyUnicode_GetDefaultEncoding();
- lseek(fd, 0, 0); /* Reset position */
- fob = PyFile_FromFd(fd, (char*)filename, "r", -1, (char*)encoding,
- NULL, NULL, 1);
- PyMem_FREE(found_encoding);
- if (fob == NULL) {
- PyErr_Clear();
- close(fd);
- return 0;
- }
-
- /* get the line number lineno */
- for (i = 0; i < lineno; i++) {
- Py_XDECREF(lineobj);
- lineobj = PyFile_GetLine(fob, -1);
- if (!lineobj) {
- err = -1;
- break;
- }
- }
- Py_DECREF(fob);
- if (!lineobj || !PyUnicode_Check(lineobj)) {
- Py_XDECREF(lineobj);
- return err;
- }
-
- /* remove the indentation of the line */
- u = PyUnicode_AS_UNICODE(lineobj);
- len = PyUnicode_GET_SIZE(lineobj);
- for (p=u; *p == ' ' || *p == '\t' || *p == '\014'; p++)
- len--;
- if (u != p) {
- PyObject *truncated;
- truncated = PyUnicode_FromUnicode(p, len);
- if (truncated) {
- Py_DECREF(lineobj);
- lineobj = truncated;
- } else {
- PyErr_Clear();
- }
- }
-
- /* Write some spaces before the line */
- strcpy(buf, " ");
- assert (strlen(buf) == 10);
- while (indent > 0) {
- if(indent < 10)
- buf[indent] = '\0';
- err = PyFile_WriteString(buf, f);
- if (err != 0)
- break;
- indent -= 10;
- }
-
- /* finally display the line */
- if (err == 0)
- err = PyFile_WriteObject(lineobj, f, Py_PRINT_RAW);
- Py_DECREF(lineobj);
- if (err == 0)
- err = PyFile_WriteString("\n", f);
- return err;
+ char buf[MAXPATHLEN+1];
+ Py_UNICODE *u, *p;
+ Py_ssize_t len;
+
+ /* open the file */
+ if (filename == NULL)
+ return 0;
+ Py_BEGIN_ALLOW_THREADS
+ fd = open(filename, open_flags);
+ Py_END_ALLOW_THREADS
+ if (fd < 0) {
+ fd = _Py_FindSourceFile(filename, buf, sizeof(buf), open_flags);
+ if (fd < 0)
+ return 0;
+ filename = buf;
+ }
+
+ /* use the right encoding to decode the file as unicode */
+ found_encoding = PyTokenizer_FindEncoding(fd);
+ encoding = (found_encoding != NULL) ? found_encoding :
+ (char*)PyUnicode_GetDefaultEncoding();
+ lseek(fd, 0, 0); /* Reset position */
+ fob = PyFile_FromFd(fd, (char*)filename, "r", -1, (char*)encoding,
+ NULL, NULL, 1);
+ PyMem_FREE(found_encoding);
+ if (fob == NULL) {
+ PyErr_Clear();
+ close(fd);
+ return 0;
+ }
+
+ /* get the line number lineno */
+ for (i = 0; i < lineno; i++) {
+ Py_XDECREF(lineobj);
+ lineobj = PyFile_GetLine(fob, -1);
+ if (!lineobj) {
+ err = -1;
+ break;
+ }
+ }
+ Py_DECREF(fob);
+ if (!lineobj || !PyUnicode_Check(lineobj)) {
+ Py_XDECREF(lineobj);
+ return err;
+ }
+
+ /* remove the indentation of the line */
+ u = PyUnicode_AS_UNICODE(lineobj);
+ len = PyUnicode_GET_SIZE(lineobj);
+ for (p=u; *p == ' ' || *p == '\t' || *p == '\014'; p++)
+ len--;
+ if (u != p) {
+ PyObject *truncated;
+ truncated = PyUnicode_FromUnicode(p, len);
+ if (truncated) {
+ Py_DECREF(lineobj);
+ lineobj = truncated;
+ } else {
+ PyErr_Clear();
+ }
+ }
+
+ /* Write some spaces before the line */
+ strcpy(buf, " ");
+ assert (strlen(buf) == 10);
+ while (indent > 0) {
+ if(indent < 10)
+ buf[indent] = '\0';
+ err = PyFile_WriteString(buf, f);
+ if (err != 0)
+ break;
+ indent -= 10;
+ }
+
+ /* finally display the line */
+ if (err == 0)
+ err = PyFile_WriteObject(lineobj, f, Py_PRINT_RAW);
+ Py_DECREF(lineobj);
+ if (err == 0)
+ err = PyFile_WriteString("\n", f);
+ return err;
}
static int
tb_displayline(PyObject *f, const char *filename, int lineno, const char *name)
{
- int err = 0;
- char linebuf[2000];
+ int err = 0;
+ char linebuf[2000];
- if (filename == NULL || name == NULL)
- return -1;
- /* This is needed by Emacs' compile command */
+ if (filename == NULL || name == NULL)
+ return -1;
+ /* This is needed by Emacs' compile command */
#define FMT " File \"%.500s\", line %d, in %.500s\n"
- PyOS_snprintf(linebuf, sizeof(linebuf), FMT, filename, lineno, name);
- err = PyFile_WriteString(linebuf, f);
- if (err != 0)
- return err;
- return _Py_DisplaySourceLine(f, filename, lineno, 4);
+ PyOS_snprintf(linebuf, sizeof(linebuf), FMT, filename, lineno, name);
+ err = PyFile_WriteString(linebuf, f);
+ if (err != 0)
+ return err;
+ return _Py_DisplaySourceLine(f, filename, lineno, 4);
}
static int
tb_printinternal(PyTracebackObject *tb, PyObject *f, long limit)
{
- int err = 0;
- long depth = 0;
- PyTracebackObject *tb1 = tb;
- while (tb1 != NULL) {
- depth++;
- tb1 = tb1->tb_next;
- }
- while (tb != NULL && err == 0) {
- if (depth <= limit) {
- err = tb_displayline(f,
- _PyUnicode_AsString(
- tb->tb_frame->f_code->co_filename),
- tb->tb_lineno,
- _PyUnicode_AsString(tb->tb_frame->f_code->co_name));
- }
- depth--;
- tb = tb->tb_next;
- if (err == 0)
- err = PyErr_CheckSignals();
- }
- return err;
+ int err = 0;
+ long depth = 0;
+ PyTracebackObject *tb1 = tb;
+ while (tb1 != NULL) {
+ depth++;
+ tb1 = tb1->tb_next;
+ }
+ while (tb != NULL && err == 0) {
+ if (depth <= limit) {
+ err = tb_displayline(f,
+ _PyUnicode_AsString(
+ tb->tb_frame->f_code->co_filename),
+ tb->tb_lineno,
+ _PyUnicode_AsString(tb->tb_frame->f_code->co_name));
+ }
+ depth--;
+ tb = tb->tb_next;
+ if (err == 0)
+ err = PyErr_CheckSignals();
+ }
+ return err;
}
#define PyTraceBack_LIMIT 1000
@@ -334,40 +334,40 @@ tb_printinternal(PyTracebackObject *tb, PyObject *f, long limit)
int
PyTraceBack_Print(PyObject *v, PyObject *f)
{
- int err;
- PyObject *limitv;
- long limit = PyTraceBack_LIMIT;
-
- if (v == NULL)
- return 0;
- if (!PyTraceBack_Check(v)) {
- PyErr_BadInternalCall();
- return -1;
- }
- limitv = PySys_GetObject("tracebacklimit");
- if (limitv) {
- PyObject *exc_type, *exc_value, *exc_tb;
-
- PyErr_Fetch(&exc_type, &exc_value, &exc_tb);
- limit = PyLong_AsLong(limitv);
- if (limit == -1 && PyErr_Occurred()) {
- if (PyErr_ExceptionMatches(PyExc_OverflowError)) {
- limit = PyTraceBack_LIMIT;
- }
- else {
- Py_XDECREF(exc_type);
- Py_XDECREF(exc_value);
- Py_XDECREF(exc_tb);
- return 0;
- }
- }
- else if (limit <= 0) {
- limit = PyTraceBack_LIMIT;
- }
- PyErr_Restore(exc_type, exc_value, exc_tb);
- }
- err = PyFile_WriteString("Traceback (most recent call last):\n", f);
- if (!err)
- err = tb_printinternal((PyTracebackObject *)v, f, limit);
- return err;
+ int err;
+ PyObject *limitv;
+ long limit = PyTraceBack_LIMIT;
+
+ if (v == NULL)
+ return 0;
+ if (!PyTraceBack_Check(v)) {
+ PyErr_BadInternalCall();
+ return -1;
+ }
+ limitv = PySys_GetObject("tracebacklimit");
+ if (limitv) {
+ PyObject *exc_type, *exc_value, *exc_tb;
+
+ PyErr_Fetch(&exc_type, &exc_value, &exc_tb);
+ limit = PyLong_AsLong(limitv);
+ if (limit == -1 && PyErr_Occurred()) {
+ if (PyErr_ExceptionMatches(PyExc_OverflowError)) {
+ limit = PyTraceBack_LIMIT;
+ }
+ else {
+ Py_XDECREF(exc_type);
+ Py_XDECREF(exc_value);
+ Py_XDECREF(exc_tb);
+ return 0;
+ }
+ }
+ else if (limit <= 0) {
+ limit = PyTraceBack_LIMIT;
+ }
+ PyErr_Restore(exc_type, exc_value, exc_tb);
+ }
+ err = PyFile_WriteString("Traceback (most recent call last):\n", f);
+ if (!err)
+ err = tb_printinternal((PyTracebackObject *)v, f, limit);
+ return err;
}