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#include "Python.h"

#include "opcode.h"

/*[clinic input]

module _opcode

[clinic start generated code]*/

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

#include "clinic/_opcode.c.h"

/*[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);

}