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allendowney
GitHub Repository: allendowney/cpython
 Path: blob/main/Python/clinic/traceback.c.h
12 views
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/*[clinic input]

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preserve

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[clinic start generated code]*/

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#if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

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#  include "pycore_gc.h"            // PyGC_Head

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#  include "pycore_runtime.h"       // _Py_ID()

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#endif

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PyDoc_STRVAR(tb_new__doc__,

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"TracebackType(tb_next, tb_frame, tb_lasti, tb_lineno)\n"

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"--\n"

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"\n"

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"Create a new traceback object.");

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static PyObject *

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tb_new_impl(PyTypeObject *type, PyObject *tb_next, PyFrameObject *tb_frame,

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            int tb_lasti, int tb_lineno);

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static PyObject *

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tb_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)

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{

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    PyObject *return_value = NULL;

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    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

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    #define NUM_KEYWORDS 4

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    static struct {

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        PyGC_Head _this_is_not_used;

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        PyObject_VAR_HEAD

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        PyObject *ob_item[NUM_KEYWORDS];

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    } _kwtuple = {

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        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)

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        .ob_item = { &_Py_ID(tb_next), &_Py_ID(tb_frame), &_Py_ID(tb_lasti), &_Py_ID(tb_lineno), },

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    };

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    #undef NUM_KEYWORDS

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    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

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    #else  // !Py_BUILD_CORE

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    #  define KWTUPLE NULL

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    #endif  // !Py_BUILD_CORE

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    static const char * const _keywords[] = {"tb_next", "tb_frame", "tb_lasti", "tb_lineno", NULL};

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    static _PyArg_Parser _parser = {

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        .keywords = _keywords,

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        .fname = "TracebackType",

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        .kwtuple = KWTUPLE,

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    };

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    #undef KWTUPLE

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    PyObject *argsbuf[4];

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    PyObject * const *fastargs;

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    Py_ssize_t nargs = PyTuple_GET_SIZE(args);

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    PyObject *tb_next;

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    PyFrameObject *tb_frame;

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    int tb_lasti;

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    int tb_lineno;

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    fastargs = _PyArg_UnpackKeywords(_PyTuple_CAST(args)->ob_item, nargs, kwargs, NULL, &_parser, 4, 4, 0, argsbuf);

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    if (!fastargs) {

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        goto exit;

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    }

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    tb_next = fastargs[0];

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    if (!PyObject_TypeCheck(fastargs[1], &PyFrame_Type)) {

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        _PyArg_BadArgument("TracebackType", "argument 'tb_frame'", (&PyFrame_Type)->tp_name, fastargs[1]);

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        goto exit;

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    }

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    tb_frame = (PyFrameObject *)fastargs[1];

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    tb_lasti = _PyLong_AsInt(fastargs[2]);

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    if (tb_lasti == -1 && PyErr_Occurred()) {

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        goto exit;

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    }

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    tb_lineno = _PyLong_AsInt(fastargs[3]);

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    if (tb_lineno == -1 && PyErr_Occurred()) {

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        goto exit;

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    }

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    return_value = tb_new_impl(type, tb_next, tb_frame, tb_lasti, tb_lineno);

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exit:

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    return return_value;

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}

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/*[clinic end generated code: output=7bc9927e362fdfb7 input=a9049054013a1b77]*/

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