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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]*/
/*[clinic input]
_opcode.stack_effect -> int
opcode: int
oparg: object = None
/
Compute the stack effect of the opcode.
[clinic start generated code]*/
PyDoc_STRVAR(_opcode_stack_effect__doc__,
"sig=($module, opcode, oparg=None)\n"
"Compute the stack effect of the opcode.");
#define _OPCODE_STACK_EFFECT_METHODDEF \
{"stack_effect", (PyCFunction)_opcode_stack_effect, METH_VARARGS, _opcode_stack_effect__doc__},
static int
_opcode_stack_effect_impl(PyModuleDef *module, int opcode, PyObject *oparg);
static PyObject *
_opcode_stack_effect(PyModuleDef *module, PyObject *args)
{
PyObject *return_value = NULL;
int opcode;
PyObject *oparg = Py_None;
int _return_value;
if (!PyArg_ParseTuple(args,
"i|O:stack_effect",
&opcode, &oparg))
goto exit;
_return_value = _opcode_stack_effect_impl(module, opcode, oparg);
if ((_return_value == -1) && PyErr_Occurred())
goto exit;
return_value = PyLong_FromLong((long)_return_value);
exit:
return return_value;
}
static int
_opcode_stack_effect_impl(PyModuleDef *module, int opcode, PyObject *oparg)
/*[clinic end generated code: output=4fe636f5db87c0a9 input=2d0a9ee53c0418f5]*/
{
int effect;
int oparg_int = 0;
if (HAS_ARG(opcode)) {
PyObject *i_object;
if (oparg == Py_None) {
PyErr_SetString(PyExc_ValueError,
"stack_effect: opcode requires oparg but oparg was not specified");
return -1;
}
i_object = PyNumber_Index(oparg);
if (!i_object)
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);
}
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