cpython-lru_cache-weakref: Python/traceback.c annotate

annotate Python/traceback.c @ 24855:bed5d5e536bc legacy-trunk

Add warnings for assignment or deletion of variables and attributes named 'None'. Still to do: function definition parameter lists, and function call keyword arguments.

author	Guido van Rossum <guido@python.org>
date	Fri, 16 Aug 2002 02:13:49 +0000
parents	cf5928fab108
children	808437b83b15

rev	line source
145 853b736a6a9e Added copyright notice. Guido van Rossum <guido@python.org> parents: 86 diff changeset	1
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	2 /* Traceback implementation */
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	3
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	4 #include "Python.h"
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	5
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	6 #include "compile.h"
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	7 #include "frameobject.h"
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	8 #include "structmember.h"
674 4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	9 #include "osdefs.h"
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	10
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	11 typedef struct _tracebackobject {
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	12 PyObject_HEAD
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	13 struct _tracebackobject *tb_next;
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	14 PyFrameObject *tb_frame;
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	15 int tb_lasti;
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	16 int tb_lineno;
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	17 } tracebackobject;
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	18
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	19 #define OFF(x) offsetof(tracebackobject, x)
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	20
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	21 static struct memberlist tb_memberlist[] = {
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	22 {"tb_next", T_OBJECT, OFF(tb_next)},
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	23 {"tb_frame", T_OBJECT, OFF(tb_frame)},
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	24 {"tb_lasti", T_INT, OFF(tb_lasti)},
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	25 {"tb_lineno", T_INT, OFF(tb_lineno)},
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	26 {NULL} /* Sentinel */
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	27 };
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	28
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	29 static PyObject *
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	30 tb_getattr(tracebackobject tb, char name)
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	31 {
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	32 return PyMember_Get((char *)tb, tb_memberlist, name);
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	33 }
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	34
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	35 static void
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	36 tb_dealloc(tracebackobject *tb)
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	37 {
22650 2288c724fe2b Call PyObject_GC_UnTrack before putting an object on the list of trash. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 21077 diff changeset	38 PyObject_GC_UnTrack(tb);
11999 c94247b5c355 Christian Tismer's "trashcan" patch: Guido van Rossum <guido@python.org> parents: 11294 diff changeset	39 Py_TRASHCAN_SAFE_BEGIN(tb)
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	40 Py_XDECREF(tb->tb_next);
424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	41 Py_XDECREF(tb->tb_frame);
20623 4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	42 PyObject_GC_Del(tb);
11999 c94247b5c355 Christian Tismer's "trashcan" patch: Guido van Rossum <guido@python.org> parents: 11294 diff changeset	43 Py_TRASHCAN_SAFE_END(tb)
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	44 }
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	45
20623 4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	46 static int
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	47 tb_traverse(tracebackobject tb, visitproc visit, void arg)
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	48 {
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	49 int err = 0;
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	50 if (tb->tb_next) {
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	51 err = visit((PyObject *)tb->tb_next, arg);
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	52 if (err)
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	53 return err;
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	54 }
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	55 if (tb->tb_frame)
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	56 err = visit((PyObject *)tb->tb_frame, arg);
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	57 return err;
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	58 }
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	59
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	60 static void
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	61 tb_clear(tracebackobject *tb)
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	62 {
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	63 Py_XDECREF(tb->tb_next);
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	64 Py_XDECREF(tb->tb_frame);
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	65 tb->tb_next = NULL;
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	66 tb->tb_frame = NULL;
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	67 }
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	68
20618 57b51966a4f1 Removed two pointless and obfuscating macros. Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	69 PyTypeObject PyTraceBack_Type = {
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	70 PyObject_HEAD_INIT(&PyType_Type)
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	71 0,
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	72 "traceback",
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	73 sizeof(tracebackobject),
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	74 0,
1831 216b755515e6 add function name to traceback info Guido van Rossum <guido@python.org> parents: 1425 diff changeset	75 (destructor)tb_dealloc, /tp_dealloc/
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	76 0, /tp_print/
1831 216b755515e6 add function name to traceback info Guido van Rossum <guido@python.org> parents: 1425 diff changeset	77 (getattrfunc)tb_getattr, /tp_getattr/
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	78 0, /tp_setattr/
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	79 0, /tp_compare/
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	80 0, /tp_repr/
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	81 0, /tp_as_number/
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	82 0, /tp_as_sequence/
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	83 0, /tp_as_mapping/
20623 4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	84 0, /* tp_hash */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	85 0, /* tp_call */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	86 0, /* tp_str */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	87 0, /* tp_getattro */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	88 0, /* tp_setattro */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	89 0, /* tp_as_buffer */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	90 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC,/* tp_flags */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	91 0, /* tp_doc */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	92 (traverseproc)tb_traverse, /* tp_traverse */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	93 (inquiry)tb_clear, /* tp_clear */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	94 0, /* tp_richcompare */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	95 0, /* tp_weaklistoffset */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	96 0, /* tp_iter */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	97 0, /* tp_iternext */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	98 0, /* tp_methods */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	99 0, /* tp_members */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	100 0, /* tp_getset */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	101 0, /* tp_base */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	102 0, /* tp_dict */
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	103 };
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	104
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	105 static tracebackobject *
24844 cf5928fab108 This is my patch Michael W. Hudson <mwh@python.net> parents: 23029 diff changeset	106 newtracebackobject(tracebackobject next, PyFrameObject frame)
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	107 {
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	108 tracebackobject *tb;
20618 57b51966a4f1 Removed two pointless and obfuscating macros. Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	109 if ((next != NULL && !PyTraceBack_Check(next)) \|\|
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	110 frame == NULL \|\| !PyFrame_Check(frame)) {
424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	111 PyErr_BadInternalCall();
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	112 return NULL;
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	113 }
20623 4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	114 tb = PyObject_GC_New(tracebackobject, &PyTraceBack_Type);
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	115 if (tb != NULL) {
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	116 Py_XINCREF(next);
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	117 tb->tb_next = next;
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	118 Py_XINCREF(frame);
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	119 tb->tb_frame = frame;
24844 cf5928fab108 This is my patch Michael W. Hudson <mwh@python.net> parents: 23029 diff changeset	120 tb->tb_lasti = frame->f_lasti;
cf5928fab108 This is my patch Michael W. Hudson <mwh@python.net> parents: 23029 diff changeset	121 tb->tb_lineno = PyCode_Addr2Line(frame->f_code,
cf5928fab108 This is my patch Michael W. Hudson <mwh@python.net> parents: 23029 diff changeset	122 frame->f_lasti);
22650 2288c724fe2b Call PyObject_GC_UnTrack before putting an object on the list of trash. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 21077 diff changeset	123 PyObject_GC_Track(tb);
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	124 }
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	125 return tb;
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	126 }
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	127
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	128 int
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	129 PyTraceBack_Here(PyFrameObject *frame)
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	130 {
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: 5404 diff changeset	131 PyThreadState *tstate = frame->f_tstate;
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: 5404 diff changeset	132 tracebackobject oldtb = (tracebackobject ) tstate->curexc_traceback;
24844 cf5928fab108 This is my patch Michael W. Hudson <mwh@python.net> parents: 23029 diff changeset	133 tracebackobject *tb = newtracebackobject(oldtb, frame);
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	134 if (tb == NULL)
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	135 return -1;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: 5404 diff changeset	136 tstate->curexc_traceback = (PyObject *)tb;
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: 5404 diff changeset	137 Py_XDECREF(oldtb);
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	138 return 0;
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	139 }
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	140
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	141 static int
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	142 tb_displayline(PyObject f, char filename, int lineno, char *name)
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	143 {
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	144 int err = 0;
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	145 FILE *xfp;
21057 2c0a9a5086e1 SF bug 485175: buffer overflow in traceback.c. Tim Peters <tim.peters@gmail.com> parents: 20623 diff changeset	146 char linebuf[2000];
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	147 int i;
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	148 if (filename == NULL \|\| name == NULL)
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	149 return -1;
1831 216b755515e6 add function name to traceback info Guido van Rossum <guido@python.org> parents: 1425 diff changeset	150 #ifdef MPW
216b755515e6 add function name to traceback info Guido van Rossum <guido@python.org> parents: 1425 diff changeset	151 /* This is needed by MPW's File and Line commands */
21057 2c0a9a5086e1 SF bug 485175: buffer overflow in traceback.c. Tim Peters <tim.peters@gmail.com> parents: 20623 diff changeset	152 #define FMT " File \"%.500s\"; line %d # in %.500s\n"
1831 216b755515e6 add function name to traceback info Guido van Rossum <guido@python.org> parents: 1425 diff changeset	153 #else
216b755515e6 add function name to traceback info Guido van Rossum <guido@python.org> parents: 1425 diff changeset	154 /* This is needed by Emacs' compile command */
21057 2c0a9a5086e1 SF bug 485175: buffer overflow in traceback.c. Tim Peters <tim.peters@gmail.com> parents: 20623 diff changeset	155 #define FMT " File \"%.500s\", line %d, in %.500s\n"
1831 216b755515e6 add function name to traceback info Guido van Rossum <guido@python.org> parents: 1425 diff changeset	156 #endif
23029 8291473fde3e Mass checkin of universal newline support. Jack Jansen <jack.jansen@cwi.nl> parents: 22650 diff changeset	157 xfp = fopen(filename, "r" PY_STDIOTEXTMODE);
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	158 if (xfp == NULL) {
674 4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	159 /* Search tail of filename in sys.path before giving up */
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	160 PyObject *path;
674 4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	161 char *tail = strrchr(filename, SEP);
4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	162 if (tail == NULL)
4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	163 tail = filename;
4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	164 else
4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	165 tail++;
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	166 path = PySys_GetObject("path");
424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	167 if (path != NULL && PyList_Check(path)) {
424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	168 int npath = PyList_Size(path);
13096 8c8de5b736dc Trent Mick's Win64 changes: size_t vs. int or long; also some overflow Guido van Rossum <guido@python.org> parents: 12576 diff changeset	169 size_t taillen = strlen(tail);
674 4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	170 char namebuf[MAXPATHLEN+1];
4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	171 for (i = 0; i < npath; i++) {
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	172 PyObject *v = PyList_GetItem(path, i);
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	173 if (v == NULL) {
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	174 PyErr_Clear();
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	175 break;
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	176 }
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	177 if (PyString_Check(v)) {
13096 8c8de5b736dc Trent Mick's Win64 changes: size_t vs. int or long; also some overflow Guido van Rossum <guido@python.org> parents: 12576 diff changeset	178 size_t len;
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	179 len = PyString_Size(v);
1909 0c232194a64f * Python/traceback.c: security fix -- check for buffer oveflow Guido van Rossum <guido@python.org> parents: 1831 diff changeset	180 if (len + 1 + taillen >= MAXPATHLEN)
0c232194a64f * Python/traceback.c: security fix -- check for buffer oveflow Guido van Rossum <guido@python.org> parents: 1831 diff changeset	181 continue; /* Too long */
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	182 strcpy(namebuf, PyString_AsString(v));
13096 8c8de5b736dc Trent Mick's Win64 changes: size_t vs. int or long; also some overflow Guido van Rossum <guido@python.org> parents: 12576 diff changeset	183 if (strlen(namebuf) != len)
1909 0c232194a64f * Python/traceback.c: security fix -- check for buffer oveflow Guido van Rossum <guido@python.org> parents: 1831 diff changeset	184 continue; /* v contains '\0' */
674 4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	185 if (len > 0 && namebuf[len-1] != SEP)
4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	186 namebuf[len++] = SEP;
4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	187 strcpy(namebuf+len, tail);
23029 8291473fde3e Mass checkin of universal newline support. Jack Jansen <jack.jansen@cwi.nl> parents: 22650 diff changeset	188 xfp = fopen(namebuf, "r" PY_STDIOTEXTMODE);
674 4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	189 if (xfp != NULL) {
4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	190 filename = namebuf;
4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	191 break;
4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	192 }
4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	193 }
4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	194 }
4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	195 }
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	196 }
21077 379fc66f4c96 Use PyOS_snprintf instead of sprintf. Jeremy Hylton <jeremy@alum.mit.edu> parents: 21057 diff changeset	197 PyOS_snprintf(linebuf, sizeof(linebuf), FMT, filename, lineno, name);
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	198 err = PyFile_WriteString(linebuf, f);
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	199 if (xfp == NULL \|\| err != 0)
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	200 return err;
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	201 for (i = 0; i < lineno; i++) {
11294 d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks. Guido van Rossum <guido@python.org> parents: 5608 diff changeset	202 char* pLastChar = &linebuf[sizeof(linebuf)-2];
d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks. Guido van Rossum <guido@python.org> parents: 5608 diff changeset	203 do {
d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks. Guido van Rossum <guido@python.org> parents: 5608 diff changeset	204 *pLastChar = '\0';
23029 8291473fde3e Mass checkin of universal newline support. Jack Jansen <jack.jansen@cwi.nl> parents: 22650 diff changeset	205 if (Py_UniversalNewlineFgets(linebuf, sizeof linebuf, xfp, NULL) == NULL)
11294 d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks. Guido van Rossum <guido@python.org> parents: 5608 diff changeset	206 break;
d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks. Guido van Rossum <guido@python.org> parents: 5608 diff changeset	207 /* fgets read something; if it didn't get as
d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks. Guido van Rossum <guido@python.org> parents: 5608 diff changeset	208 far as pLastChar, it must have found a newline
d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks. Guido van Rossum <guido@python.org> parents: 5608 diff changeset	209 or hit the end of the file; if pLastChar is \n,
d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks. Guido van Rossum <guido@python.org> parents: 5608 diff changeset	210 it obviously found a newline; else we haven't
d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks. Guido van Rossum <guido@python.org> parents: 5608 diff changeset	211 yet seen a newline, so must continue */
d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks. Guido van Rossum <guido@python.org> parents: 5608 diff changeset	212 } while (pLastChar != '\0' && pLastChar != '\n');
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	213 }
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	214 if (i == lineno) {
674 4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	215 char *p = linebuf;
2811 07fc4fefb683 ignore control-l (parallelling change to tokenizer.c) Guido van Rossum <guido@python.org> parents: 2062 diff changeset	216 while (p == ' ' \|\| p == '\t' \|\| *p == '\014')
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	217 p++;
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	218 err = PyFile_WriteString(" ", f);
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	219 if (err == 0) {
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	220 err = PyFile_WriteString(p, f);
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	221 if (err == 0 && strchr(p, '\n') == NULL)
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	222 err = PyFile_WriteString("\n", f);
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	223 }
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	224 }
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	225 fclose(xfp);
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	226 return err;
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	227 }
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	228
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	229 static int
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	230 tb_printinternal(tracebackobject tb, PyObject f, int limit)
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	231 {
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	232 int err = 0;
1425 72bddfad351a * mpzmodule.c: cast some methods to the proper type. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	233 int depth = 0;
72bddfad351a * mpzmodule.c: cast some methods to the proper type. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	234 tracebackobject *tb1 = tb;
72bddfad351a * mpzmodule.c: cast some methods to the proper type. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	235 while (tb1 != NULL) {
72bddfad351a * mpzmodule.c: cast some methods to the proper type. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	236 depth++;
72bddfad351a * mpzmodule.c: cast some methods to the proper type. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	237 tb1 = tb1->tb_next;
72bddfad351a * mpzmodule.c: cast some methods to the proper type. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	238 }
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	239 while (tb != NULL && err == 0) {
5046 658815230546 Get the line number from PyCode_Addr2Line instead of believing Guido van Rossum <guido@python.org> parents: 4503 diff changeset	240 if (depth <= limit) {
5404 3780cce14f7d Only use PyCode_Addr2Line to get tb_lineno when Py_OptimizeFlag is set. Guido van Rossum <guido@python.org> parents: 5372 diff changeset	241 if (Py_OptimizeFlag)
3780cce14f7d Only use PyCode_Addr2Line to get tb_lineno when Py_OptimizeFlag is set. Guido van Rossum <guido@python.org> parents: 5372 diff changeset	242 tb->tb_lineno = PyCode_Addr2Line(
3780cce14f7d Only use PyCode_Addr2Line to get tb_lineno when Py_OptimizeFlag is set. Guido van Rossum <guido@python.org> parents: 5372 diff changeset	243 tb->tb_frame->f_code, tb->tb_lasti);
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	244 err = tb_displayline(f,
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	245 PyString_AsString(
424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	246 tb->tb_frame->f_code->co_filename),
1831 216b755515e6 add function name to traceback info Guido van Rossum <guido@python.org> parents: 1425 diff changeset	247 tb->tb_lineno,
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	248 PyString_AsString(tb->tb_frame->f_code->co_name));
5046 658815230546 Get the line number from PyCode_Addr2Line instead of believing Guido van Rossum <guido@python.org> parents: 4503 diff changeset	249 }
1425 72bddfad351a * mpzmodule.c: cast some methods to the proper type. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	250 depth--;
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	251 tb = tb->tb_next;
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	252 if (err == 0)
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	253 err = PyErr_CheckSignals();
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	254 }
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	255 return err;
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	256 }
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	257
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	258 int
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	259 PyTraceBack_Print(PyObject v, PyObject f)
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	260 {
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	261 int err;
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	262 PyObject *limitv;
1425 72bddfad351a * mpzmodule.c: cast some methods to the proper type. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	263 int limit = 1000;
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	264 if (v == NULL)
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	265 return 0;
20618 57b51966a4f1 Removed two pointless and obfuscating macros. Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	266 if (!PyTraceBack_Check(v)) {
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	267 PyErr_BadInternalCall();
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	268 return -1;
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	269 }
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	270 limitv = PySys_GetObject("tracebacklimit");
424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	271 if (limitv && PyInt_Check(limitv)) {
424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	272 limit = PyInt_AsLong(limitv);
1425 72bddfad351a * mpzmodule.c: cast some methods to the proper type. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	273 if (limit <= 0)
72bddfad351a * mpzmodule.c: cast some methods to the proper type. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	274 return 0;
72bddfad351a * mpzmodule.c: cast some methods to the proper type. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	275 }
12137 5b5581af951c Change traceback error message to "most recent call last" from Guido van Rossum <guido@python.org> parents: 11999 diff changeset	276 err = PyFile_WriteString("Traceback (most recent call last):\n", f);
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	277 if (!err)
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	278 err = tb_printinternal((tracebackobject *)v, f, limit);
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	279 return err;
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	280 }

Mercurial > cpython-lru_cache-weakref

annotate Python/traceback.c @ 24855:bed5d5e536bc legacy-trunk