_opcode.c

#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]*/

staticint
_opcode_stack_effect_impl(PyObject*module, intopcode, PyObject*oparg)
/*[clinic end generated code: output=ad39467fa3ad22ce input=2d0a9ee53c0418f5]*/
{
inteffect;
intoparg_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;
 }
elseif (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;
 }
returneffect;
}




staticPyMethodDef
opcode_functions[] = {
_OPCODE_STACK_EFFECT_METHODDEF
 {NULL, NULL, 0, NULL}
};


staticstructPyModuleDefopcodemodule= {
PyModuleDef_HEAD_INIT,
"_opcode",
"Opcode support module.",
-1,
opcode_functions,
NULL,
NULL,
NULL,
NULL
};

PyMODINIT_FUNC
PyInit__opcode(void)
{
returnPyModule_Create(&opcodemodule);
}