diff options
author | Ori Bernstein <ori@eigenstate.org> | 2021-06-14 00:00:37 +0000 |
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committer | Ori Bernstein <ori@eigenstate.org> | 2021-06-14 00:00:37 +0000 |
commit | a73a964e51247ed169d322c725a3a18859f109a3 (patch) | |
tree | 3f752d117274d444bda44e85609aeac1acf313f3 /sys/src/cmd/python/Python/traceback.c | |
parent | e64efe273fcb921a61bf27d33b230c4e64fcd425 (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.c | 262 |
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; -} |