/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8                                :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Python 3                                                                     │
│ https://docs.python.org/3/license.html                                       │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "third_party/python/Include/compile.h"
#include "third_party/python/Include/import.h"
#include "third_party/python/Include/longobject.h"
#include "third_party/python/Include/modsupport.h"
#include "third_party/python/Include/object.h"
#include "third_party/python/Include/opcode.h"
#include "third_party/python/Include/pyerrors.h"
#include "third_party/python/Include/pymacro.h"
#include "third_party/python/Include/yoink.h"
/* clang-format off */

PYTHON_PROVIDE("_opcode");
PYTHON_PROVIDE("_opcode.stack_effect");

/*[clinic input]
module _opcode
[clinic start generated code]*/
/*[clinic end generated code: output=da39a3ee5e6b4b0d input=117442e66eb376e6]*/

#include "third_party/python/Modules/clinic/_opcode.inc"

/*[clinic input]

_opcode.stack_effect -> int

  opcode: int
  oparg: object = None
  /

Compute the stack effect of the opcode.
[clinic start generated code]*/

static int
_opcode_stack_effect_impl(PyObject *module, int opcode, PyObject *oparg)
/*[clinic end generated code: output=ad39467fa3ad22ce input=2d0a9ee53c0418f5]*/
{
    int effect;
    int oparg_int = 0;
    if (HAS_ARG(opcode)) {
        if (oparg == Py_None) {
            PyErr_SetString(PyExc_ValueError,
                    "stack_effect: opcode requires oparg but oparg was not specified");
            return -1;
        }
        oparg_int = (int)PyLong_AsLong(oparg);
        if ((oparg_int == -1) && PyErr_Occurred())
            return -1;
    }
    else if (oparg != Py_None) {
        PyErr_SetString(PyExc_ValueError,
                "stack_effect: opcode does not permit oparg but oparg was specified");
        return -1;
    }
    effect = PyCompile_OpcodeStackEffect(opcode, oparg_int);
    if (effect == PY_INVALID_STACK_EFFECT) {
            PyErr_SetString(PyExc_ValueError,
                    "invalid opcode or oparg");
            return -1;
    }
    return effect;
}




static PyMethodDef
opcode_functions[] =  {
    _OPCODE_STACK_EFFECT_METHODDEF
    {NULL, NULL, 0, NULL}
};


static struct PyModuleDef opcodemodule = {
    PyModuleDef_HEAD_INIT,
    "_opcode",
    "Opcode support module.",
    -1,
    opcode_functions,
    NULL,
    NULL,
    NULL,
    NULL
};

PyMODINIT_FUNC
PyInit__opcode(void)
{
    return PyModule_Create(&opcodemodule);
}

_Section(".rodata.pytab.1") const struct _inittab _PyImport_Inittab__opcode = {
    "_opcode",
    PyInit__opcode,
};