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call_trampoline() now uses fast call 

Issue #27128.
This commit is contained in:
Victor Stinner 2016-08-20 01:22:57 +02:00
parent 71cb64acc2
commit 78da82bf3e
1 changed files with 12 additions and 21 deletions
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33
Python/sysmodule.c
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@ -368,34 +368,25 @@ static PyObject *
call_trampoline(PyObject* callback,
PyFrameObject *frame, int what, PyObject *arg)
{
PyObject *args;
PyObject *whatstr;
PyObject *result;
PyObject *stack[3];
args = PyTuple_New(3);
if (args == NULL)
return NULL;
if (PyFrame_FastToLocalsWithError(frame) < 0)
if (PyFrame_FastToLocalsWithError(frame) < 0) {
return NULL;
}
Py_INCREF(frame);
whatstr = whatstrings[what];
Py_INCREF(whatstr);
if (arg == NULL)
arg = Py_None;
Py_INCREF(arg);
PyTuple_SET_ITEM(args, 0, (PyObject *)frame);
PyTuple_SET_ITEM(args, 1, whatstr);
PyTuple_SET_ITEM(args, 2, arg);
stack[0] = (PyObject *)frame;
stack[1] = whatstrings[what];
stack[2] = (arg != NULL) ? arg : Py_None;
/* call the Python-level function */
result = PyEval_CallObject(callback, args);
PyFrame_LocalsToFast(frame, 1);
if (result == NULL)
PyTraceBack_Here(frame);
result = _PyObject_FastCall(callback, stack, 3, NULL);
PyFrame_LocalsToFast(frame, 1);
if (result == NULL) {
PyTraceBack_Here(frame);
}
/* cleanup */
Py_DECREF(args);
return result;
}