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#include "Python.h"
#include "opcode.h"
/*[clinic input]
module _opcode
[clinic start generated code]*/
/*[clinic end generated code: checksum=da39a3ee5e6b4b0d3255bfef95601890afd80709]*/
/*[clinic input]
_opcode.stack_effect -> int
opcode: int
[
oparg: int
]
/
Compute the stack effect of the opcode.
[clinic start generated code]*/
PyDoc_STRVAR(_opcode_stack_effect__doc__,
"stack_effect(opcode, [oparg])\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, int group_right_1, int oparg);
static PyObject *
_opcode_stack_effect(PyModuleDef *module, PyObject *args)
{
PyObject *return_value = NULL;
int opcode;
int group_right_1 = 0;
int oparg = 0;
int _return_value;
switch (PyTuple_GET_SIZE(args)) {
case 1:
if (!PyArg_ParseTuple(args, "i:stack_effect", &opcode))
goto exit;
break;
case 2:
if (!PyArg_ParseTuple(args, "ii:stack_effect", &opcode, &oparg))
goto exit;
group_right_1 = 1;
break;
default:
PyErr_SetString(PyExc_TypeError, "_opcode.stack_effect requires 1 to 2 arguments");
goto exit;
}
_return_value = _opcode_stack_effect_impl(module, opcode, group_right_1, 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, int group_right_1, int oparg)
/*[clinic end generated code: checksum=58fb4f1b174fc92f783dc945ca712fb752a6c283]*/
{
int effect;
if (HAS_ARG(opcode)) {
if (!group_right_1) {
PyErr_SetString(PyExc_ValueError,
"stack_effect: opcode requires oparg but oparg was not specified");
return -1;
}
}
else if (group_right_1) {
PyErr_SetString(PyExc_ValueError,
"stack_effect: opcode does not permit oparg but oparg was specified");
return -1;
}
effect = PyCompile_OpcodeStackEffect(opcode, oparg);
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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