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bpo-35199: Add an internal _PyTuple_ITEMS() macro (GH-10434) 

* _PyTuple_ITEMS() gives access to the tuple->ob_item field and cast the
  first argument to PyTupleObject*. This internal macro is only usable if
  Py_BUILD_CORE is defined.
* Replace &PyTuple_GET_ITEM(ob, 0) with _PyTuple_ITEMS(ob).
* Replace PyTuple_GET_ITEM(op, 1) with &_PyTuple_ITEMS(ob)[1].
This commit is contained in:
Victor Stinner 2018-11-09 16:56:48 +01:00 committed by GitHub
parent 130893debf
commit d17a693fa0
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
9 changed files with 27 additions and 23 deletions
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4
Include/tupleobject.h
View File

@ -58,6 +58,10 @@ PyAPI_FUNC(void) _PyTuple_MaybeUntrack(PyObject *);
#define PyTuple_GET_ITEM(op, i) (((PyTupleObject *)(op))->ob_item[i])
#define PyTuple_GET_SIZE(op) (assert(PyTuple_Check(op)),Py_SIZE(op))
#ifdef Py_BUILD_CORE
# define _PyTuple_ITEMS(op) ((((PyTupleObject *)(op))->ob_item))
#endif
/* Macro, *only* to be used to fill in brand new tuples */
#define PyTuple_SET_ITEM(op, i, v) (((PyTupleObject *)(op))->ob_item[i] = v)
#endif

6
Modules/_functoolsmodule.c
View File

@ -142,7 +142,7 @@ partial_fastcall(partialobject *pto, PyObject **args, Py_ssize_t nargs,
stack = args;
}
else if (nargs == 0) {
stack = &PyTuple_GET_ITEM(pto->args, 0);
stack = _PyTuple_ITEMS(pto->args);
}
else {
if (nargs2 <= (Py_ssize_t)Py_ARRAY_LENGTH(small_stack)) {
@ -159,7 +159,7 @@ partial_fastcall(partialobject *pto, PyObject **args, Py_ssize_t nargs,
/* use borrowed references */
memcpy(stack,
&PyTuple_GET_ITEM(pto->args, 0),
_PyTuple_ITEMS(pto->args),
pto_nargs * sizeof(PyObject*));
memcpy(&stack[pto_nargs],
args,
@ -222,7 +222,7 @@ partial_call(partialobject *pto, PyObject *args, PyObject *kwargs)
if (pto->use_fastcall) {
res = partial_fastcall(pto,
&PyTuple_GET_ITEM(args, 0),
_PyTuple_ITEMS(args),
PyTuple_GET_SIZE(args),
kwargs2);
}

2
Modules/_testcapimodule.c
View File

@ -4361,7 +4361,7 @@ fastcall_args(PyObject *args, PyObject ***stack, Py_ssize_t *nargs)
*nargs = 0;
}
else if (PyTuple_Check(args)) {
*stack = &PyTuple_GET_ITEM(args, 0);
*stack = ((PyTupleObject *)args)->ob_item;
*nargs = PyTuple_GET_SIZE(args);
}
else {

22
Objects/call.c
View File

@ -224,7 +224,7 @@ PyObject_Call(PyObject *callable, PyObject *args, PyObject *kwargs)
if (PyFunction_Check(callable)) {
return _PyFunction_FastCallDict(callable,
&PyTuple_GET_ITEM(args, 0),
_PyTuple_ITEMS(args),
PyTuple_GET_SIZE(args),
kwargs);
}
@ -325,7 +325,7 @@ _PyFunction_FastCallDict(PyObject *func, PyObject *const *args, Py_ssize_t nargs
&& co->co_argcount == PyTuple_GET_SIZE(argdefs)) {
/* function called with no arguments, but all parameters have
a default value: use default values as arguments .*/
args = &PyTuple_GET_ITEM(argdefs, 0);
args = _PyTuple_ITEMS(argdefs);
return function_code_fastcall(co, args, PyTuple_GET_SIZE(argdefs),
globals);
}
@ -342,7 +342,7 @@ _PyFunction_FastCallDict(PyObject *func, PyObject *const *args, Py_ssize_t nargs
return NULL;
}
k = &PyTuple_GET_ITEM(kwtuple, 0);
k = _PyTuple_ITEMS(kwtuple);
pos = i = 0;
while (PyDict_Next(kwargs, &pos, &k[i], &k[i+1])) {
/* We must hold strong references because keyword arguments can be
@ -365,7 +365,7 @@ _PyFunction_FastCallDict(PyObject *func, PyObject *const *args, Py_ssize_t nargs
qualname = ((PyFunctionObject *)func) -> func_qualname;
if (argdefs != NULL) {
d = &PyTuple_GET_ITEM(argdefs, 0);
d = _PyTuple_ITEMS(argdefs);
nd = PyTuple_GET_SIZE(argdefs);
}
else {
@ -411,7 +411,7 @@ _PyFunction_FastCallKeywords(PyObject *func, PyObject *const *stack,
&& co->co_argcount == PyTuple_GET_SIZE(argdefs)) {
/* function called with no arguments, but all parameters have
a default value: use default values as arguments .*/
stack = &PyTuple_GET_ITEM(argdefs, 0);
stack = _PyTuple_ITEMS(argdefs);
return function_code_fastcall(co, stack, PyTuple_GET_SIZE(argdefs),
globals);
}
@ -423,7 +423,7 @@ _PyFunction_FastCallKeywords(PyObject *func, PyObject *const *stack,
qualname = ((PyFunctionObject *)func) -> func_qualname;
if (argdefs != NULL) {
d = &PyTuple_GET_ITEM(argdefs, 0);
d = _PyTuple_ITEMS(argdefs);
nd = PyTuple_GET_SIZE(argdefs);
}
else {
@ -432,7 +432,7 @@ _PyFunction_FastCallKeywords(PyObject *func, PyObject *const *stack,
}
return _PyEval_EvalCodeWithName((PyObject*)co, globals, (PyObject *)NULL,
stack, nargs,
nkwargs ? &PyTuple_GET_ITEM(kwnames, 0) : NULL,
nkwargs ? _PyTuple_ITEMS(kwnames) : NULL,
stack + nargs,
nkwargs, 1,
d, (int)nd, kwdefs,
@ -785,7 +785,7 @@ PyCFunction_Call(PyObject *func, PyObject *args, PyObject *kwargs)
}
else {
return _PyCFunction_FastCallDict(func,
&PyTuple_GET_ITEM(args, 0),
_PyTuple_ITEMS(args),
PyTuple_GET_SIZE(args),
kwargs);
}
@ -898,8 +898,8 @@ _PyObject_Call_Prepend(PyObject *callable,
/* use borrowed references */
stack[0] = obj;
memcpy(&stack[1],
&PyTuple_GET_ITEM(args, 0),
argcount * sizeof(PyObject *));
_PyTuple_ITEMS(args),
argcount * sizeof(PyObject *));
result = _PyObject_FastCallDict(callable,
stack, argcount + 1,
@ -950,7 +950,7 @@ _PyObject_CallFunctionVa(PyObject *callable, const char *format,
func(*(arg1, arg2, arg3)): func(arg1, arg2, arg3) */
PyObject *args = stack[0];
result = _PyObject_FastCall(callable,
&PyTuple_GET_ITEM(args, 0),
_PyTuple_ITEMS(args),
PyTuple_GET_SIZE(args));
}
else {

2
Objects/codeobject.c
View File

@ -39,7 +39,7 @@ intern_strings(PyObject *tuple)
if (v == NULL || !PyUnicode_CheckExact(v)) {
Py_FatalError("non-string found in code slot");
}
PyUnicode_InternInPlace(&PyTuple_GET_ITEM(tuple, i));
PyUnicode_InternInPlace(&_PyTuple_ITEMS(tuple)[i]);
}
}

4
Objects/descrobject.c
View File

@ -247,7 +247,7 @@ methoddescr_call(PyMethodDescrObject *descr, PyObject *args, PyObject *kwargs)
}
result = _PyMethodDef_RawFastCallDict(descr->d_method, self,
&PyTuple_GET_ITEM(args, 1), nargs - 1,
&_PyTuple_ITEMS(args)[1], nargs - 1,
kwargs);
result = _Py_CheckFunctionResult((PyObject *)descr, result, NULL);
return result;
@ -331,7 +331,7 @@ classmethoddescr_call(PyMethodDescrObject *descr, PyObject *args,
}
result = _PyMethodDef_RawFastCallDict(descr->d_method, self,
&PyTuple_GET_ITEM(args, 1), argc - 1,
&_PyTuple_ITEMS(args)[1], argc - 1,
kwds);
result = _Py_CheckFunctionResult((PyObject *)descr, result, NULL);
return result;

2
Objects/funcobject.c
View File

@ -581,7 +581,7 @@ function_call(PyObject *func, PyObject *args, PyObject *kwargs)
PyObject **stack;
Py_ssize_t nargs;
stack = &PyTuple_GET_ITEM(args, 0);
stack = _PyTuple_ITEMS(args);
nargs = PyTuple_GET_SIZE(args);
return _PyFunction_FastCallDict(func, stack, nargs, kwargs);
}

2
Python/ceval.c
View File

@ -4662,7 +4662,7 @@ do_call_core(PyObject *func, PyObject *callargs, PyObject *kwdict)
}
C_TRACE(result, _PyCFunction_FastCallDict(func,
&PyTuple_GET_ITEM(callargs, 1),
&_PyTuple_ITEMS(callargs)[1],
nargs - 1,
kwdict));
Py_DECREF(func);

6
Python/getargs.c
View File

@ -422,7 +422,7 @@ vgetargs1(PyObject *args, const char *format, va_list *p_va, int flags)
return 0;
}
stack = &PyTuple_GET_ITEM(args, 0);
stack = _PyTuple_ITEMS(args);
nargs = PyTuple_GET_SIZE(args);
}
else {
@ -2254,7 +2254,7 @@ vgetargskeywordsfast(PyObject *args, PyObject *keywords,
return 0;
}
stack = &PyTuple_GET_ITEM(args, 0);
stack = _PyTuple_ITEMS(args);
nargs = PyTuple_GET_SIZE(args);
return vgetargskeywordsfast_impl(stack, nargs, keywords, NULL,
parser, p_va, flags);
@ -2461,7 +2461,7 @@ PyArg_UnpackTuple(PyObject *args, const char *name, Py_ssize_t min, Py_ssize_t m
"PyArg_UnpackTuple() argument list is not a tuple");
return 0;
}
stack = &PyTuple_GET_ITEM(args, 0);
stack = _PyTuple_ITEMS(args);
nargs = PyTuple_GET_SIZE(args);
#ifdef HAVE_STDARG_PROTOTYPES