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authorOri Bernstein <ori@eigenstate.org>2021-06-14 00:00:37 +0000
committerOri Bernstein <ori@eigenstate.org>2021-06-14 00:00:37 +0000
commita73a964e51247ed169d322c725a3a18859f109a3 (patch)
tree3f752d117274d444bda44e85609aeac1acf313f3 /sys/src/cmd/python/Python/traceback.c
parente64efe273fcb921a61bf27d33b230c4e64fcd425 (diff)
python, hg: tow outside the environment.
they've served us well, and can ride off into the sunset.
Diffstat (limited to 'sys/src/cmd/python/Python/traceback.c')
-rw-r--r--sys/src/cmd/python/Python/traceback.c262
1 files changed, 0 insertions, 262 deletions
diff --git a/sys/src/cmd/python/Python/traceback.c b/sys/src/cmd/python/Python/traceback.c
deleted file mode 100644
index 4ddee2c73..000000000
--- a/sys/src/cmd/python/Python/traceback.c
+++ /dev/null
@@ -1,262 +0,0 @@
-
-/* Traceback implementation */
-
-#include "Python.h"
-
-#include "code.h"
-#include "frameobject.h"
-#include "structmember.h"
-#include "osdefs.h"
-#include "traceback.h"
-
-#define OFF(x) offsetof(PyTracebackObject, x)
-
-static struct memberlist tb_memberlist[] = {
- {"tb_next", T_OBJECT, OFF(tb_next)},
- {"tb_frame", T_OBJECT, OFF(tb_frame)},
- {"tb_lasti", T_INT, OFF(tb_lasti)},
- {"tb_lineno", T_INT, OFF(tb_lineno)},
- {NULL} /* Sentinel */
-};
-
-static PyObject *
-tb_getattr(PyTracebackObject *tb, char *name)
-{
- return PyMember_Get((char *)tb, tb_memberlist, name);
-}
-
-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)
-}
-
-static int
-tb_traverse(PyTracebackObject *tb, visitproc visit, void *arg)
-{
- 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);
-}
-
-PyTypeObject PyTraceBack_Type = {
- PyObject_HEAD_INIT(&PyType_Type)
- 0,
- "traceback",
- sizeof(PyTracebackObject),
- 0,
- (destructor)tb_dealloc, /*tp_dealloc*/
- 0, /*tp_print*/
- (getattrfunc)tb_getattr, /*tp_getattr*/
- 0, /*tp_setattr*/
- 0, /*tp_compare*/
- 0, /*tp_repr*/
- 0, /*tp_as_number*/
- 0, /*tp_as_sequence*/
- 0, /*tp_as_mapping*/
- 0, /* tp_hash */
- 0, /* tp_call */
- 0, /* tp_str */
- 0, /* 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 */
- 0, /* tp_methods */
- 0, /* 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 = PyCode_Addr2Line(frame->f_code,
- frame->f_lasti);
- 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;
-}
-
-static int
-tb_displayline(PyObject *f, char *filename, int lineno, char *name)
-{
- int err = 0;
- FILE *xfp;
- char linebuf[2000];
- int i;
- if (filename == NULL || name == NULL)
- return -1;
- /* This is needed by Emacs' compile command */
-#define FMT " File \"%.500s\", line %d, in %.500s\n"
- xfp = fopen(filename, "r" PY_STDIOTEXTMODE);
- if (xfp == NULL) {
- /* Search tail of filename in sys.path before giving up */
- PyObject *path;
- char *tail = strrchr(filename, SEP);
- if (tail == NULL)
- tail = filename;
- else
- tail++;
- path = PySys_GetObject("path");
- if (path != NULL && PyList_Check(path)) {
- Py_ssize_t _npath = PyList_Size(path);
- int npath = Py_SAFE_DOWNCAST(_npath, Py_ssize_t, int);
- size_t taillen = strlen(tail);
- char namebuf[MAXPATHLEN+1];
- for (i = 0; i < npath; i++) {
- PyObject *v = PyList_GetItem(path, i);
- if (v == NULL) {
- PyErr_Clear();
- break;
- }
- if (PyString_Check(v)) {
- size_t len;
- len = PyString_GET_SIZE(v);
- if (len + 1 + taillen >= MAXPATHLEN)
- continue; /* Too long */
- strcpy(namebuf, PyString_AsString(v));
- if (strlen(namebuf) != len)
- continue; /* v contains '\0' */
- if (len > 0 && namebuf[len-1] != SEP)
- namebuf[len++] = SEP;
- strcpy(namebuf+len, tail);
- xfp = fopen(namebuf, "r" PY_STDIOTEXTMODE);
- if (xfp != NULL) {
- filename = namebuf;
- break;
- }
- }
- }
- }
- }
- PyOS_snprintf(linebuf, sizeof(linebuf), FMT, filename, lineno, name);
- err = PyFile_WriteString(linebuf, f);
- if (xfp == NULL)
- return err;
- else if (err != 0) {
- fclose(xfp);
- return err;
- }
- for (i = 0; i < lineno; i++) {
- char* pLastChar = &linebuf[sizeof(linebuf)-2];
- do {
- *pLastChar = '\0';
- if (Py_UniversalNewlineFgets(linebuf, sizeof linebuf, xfp, NULL) == NULL)
- break;
- /* fgets read *something*; if it didn't get as
- far as pLastChar, it must have found a newline
- or hit the end of the file; if pLastChar is \n,
- it obviously found a newline; else we haven't
- yet seen a newline, so must continue */
- } while (*pLastChar != '\0' && *pLastChar != '\n');
- }
- if (i == lineno) {
- char *p = linebuf;
- while (*p == ' ' || *p == '\t' || *p == '\014')
- p++;
- err = PyFile_WriteString(" ", f);
- if (err == 0) {
- err = PyFile_WriteString(p, f);
- if (err == 0 && strchr(p, '\n') == NULL)
- err = PyFile_WriteString("\n", f);
- }
- }
- fclose(xfp);
- return err;
-}
-
-static int
-tb_printinternal(PyTracebackObject *tb, PyObject *f, int limit)
-{
- int err = 0;
- int 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,
- PyString_AsString(
- tb->tb_frame->f_code->co_filename),
- tb->tb_lineno,
- PyString_AsString(tb->tb_frame->f_code->co_name));
- }
- depth--;
- tb = tb->tb_next;
- if (err == 0)
- err = PyErr_CheckSignals();
- }
- return err;
-}
-
-int
-PyTraceBack_Print(PyObject *v, PyObject *f)
-{
- int err;
- PyObject *limitv;
- int limit = 1000;
- if (v == NULL)
- return 0;
- if (!PyTraceBack_Check(v)) {
- PyErr_BadInternalCall();
- return -1;
- }
- limitv = PySys_GetObject("tracebacklimit");
- if (limitv && PyInt_Check(limitv)) {
- limit = PyInt_AsLong(limitv);
- if (limit <= 0)
- return 0;
- }
- err = PyFile_WriteString("Traceback (most recent call last):\n", f);
- if (!err)
- err = tb_printinternal((PyTracebackObject *)v, f, limit);
- return err;
-}