mirror of
https://github.com/python/cpython.git
synced 2024-12-13 11:54:54 +08:00
ffd9753a94
The bulk of this patch was generated automatically with:
for name in \
PyObject_Vectorcall \
Py_TPFLAGS_HAVE_VECTORCALL \
PyObject_VectorcallMethod \
PyVectorcall_Function \
PyObject_CallOneArg \
PyObject_CallMethodNoArgs \
PyObject_CallMethodOneArg \
;
do
echo $name
git grep -lwz _$name | xargs -0 sed -i "s/\b_$name\b/$name/g"
done
old=_PyObject_FastCallDict
new=PyObject_VectorcallDict
git grep -lwz $old | xargs -0 sed -i "s/\b$old\b/$new/g"
and then cleaned up:
- Revert changes to in docs & news
- Revert changes to backcompat defines in headers
- Nudge misaligned comments
1027 lines
29 KiB
C
1027 lines
29 KiB
C
#include "Python.h"
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#include "pycore_call.h"
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#include "pycore_ceval.h" /* _PyEval_EvalFrame() */
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#include "pycore_object.h"
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#include "pycore_pyerrors.h"
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#include "pycore_pystate.h"
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#include "pycore_tupleobject.h"
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#include "frameobject.h"
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static PyObject *const *
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_PyStack_UnpackDict(PyThreadState *tstate,
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PyObject *const *args, Py_ssize_t nargs,
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PyObject *kwargs, PyObject **p_kwnames);
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static void
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_PyStack_UnpackDict_Free(PyObject *const *stack, Py_ssize_t nargs,
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PyObject *kwnames);
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static PyObject *
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null_error(PyThreadState *tstate)
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{
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if (!_PyErr_Occurred(tstate)) {
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_PyErr_SetString(tstate, PyExc_SystemError,
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"null argument to internal routine");
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}
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return NULL;
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}
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PyObject*
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_Py_CheckFunctionResult(PyThreadState *tstate, PyObject *callable,
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PyObject *result, const char *where)
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{
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assert((callable != NULL) ^ (where != NULL));
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if (result == NULL) {
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if (!_PyErr_Occurred(tstate)) {
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if (callable)
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_PyErr_Format(tstate, PyExc_SystemError,
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"%R returned NULL without setting an error",
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callable);
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else
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_PyErr_Format(tstate, PyExc_SystemError,
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"%s returned NULL without setting an error",
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where);
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#ifdef Py_DEBUG
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/* Ensure that the bug is caught in debug mode */
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Py_FatalError("a function returned NULL without setting an error");
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#endif
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return NULL;
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}
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}
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else {
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if (_PyErr_Occurred(tstate)) {
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Py_DECREF(result);
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if (callable) {
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_PyErr_FormatFromCauseTstate(
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tstate, PyExc_SystemError,
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"%R returned a result with an error set", callable);
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}
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else {
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_PyErr_FormatFromCauseTstate(
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tstate, PyExc_SystemError,
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"%s returned a result with an error set", where);
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}
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#ifdef Py_DEBUG
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/* Ensure that the bug is caught in debug mode */
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Py_FatalError("a function returned a result with an error set");
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#endif
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return NULL;
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}
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}
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return result;
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}
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/* --- Core PyObject call functions ------------------------------- */
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/* Call a callable Python object without any arguments */
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PyObject *
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PyObject_CallNoArgs(PyObject *func)
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{
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PyThreadState *tstate = _PyThreadState_GET();
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return _PyObject_CallNoArgTstate(tstate, func);
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}
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PyObject *
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_PyObject_FastCallDictTstate(PyThreadState *tstate, PyObject *callable,
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PyObject *const *args, size_t nargsf,
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PyObject *kwargs)
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{
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assert(callable != NULL);
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/* PyObject_VectorcallDict() must not be called with an exception set,
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because it can clear it (directly or indirectly) and so the
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caller loses its exception */
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assert(!_PyErr_Occurred(tstate));
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Py_ssize_t nargs = PyVectorcall_NARGS(nargsf);
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assert(nargs >= 0);
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assert(nargs == 0 || args != NULL);
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assert(kwargs == NULL || PyDict_Check(kwargs));
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vectorcallfunc func = PyVectorcall_Function(callable);
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if (func == NULL) {
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/* Use tp_call instead */
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return _PyObject_MakeTpCall(tstate, callable, args, nargs, kwargs);
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}
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PyObject *res;
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if (kwargs == NULL || PyDict_GET_SIZE(kwargs) == 0) {
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res = func(callable, args, nargsf, NULL);
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}
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else {
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PyObject *kwnames;
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PyObject *const *newargs;
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newargs = _PyStack_UnpackDict(tstate,
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args, nargs,
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kwargs, &kwnames);
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if (newargs == NULL) {
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return NULL;
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}
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res = func(callable, newargs,
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nargs | PY_VECTORCALL_ARGUMENTS_OFFSET, kwnames);
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_PyStack_UnpackDict_Free(newargs, nargs, kwnames);
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}
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return _Py_CheckFunctionResult(tstate, callable, res, NULL);
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}
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PyObject *
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PyObject_VectorcallDict(PyObject *callable, PyObject *const *args,
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size_t nargsf, PyObject *kwargs)
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{
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PyThreadState *tstate = _PyThreadState_GET();
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return _PyObject_FastCallDictTstate(tstate, callable, args, nargsf, kwargs);
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}
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PyObject *
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_PyObject_MakeTpCall(PyThreadState *tstate, PyObject *callable,
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PyObject *const *args, Py_ssize_t nargs,
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PyObject *keywords)
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{
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assert(nargs >= 0);
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assert(nargs == 0 || args != NULL);
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assert(keywords == NULL || PyTuple_Check(keywords) || PyDict_Check(keywords));
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/* Slow path: build a temporary tuple for positional arguments and a
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* temporary dictionary for keyword arguments (if any) */
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ternaryfunc call = Py_TYPE(callable)->tp_call;
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if (call == NULL) {
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_PyErr_Format(tstate, PyExc_TypeError,
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"'%.200s' object is not callable",
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Py_TYPE(callable)->tp_name);
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return NULL;
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}
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PyObject *argstuple = _PyTuple_FromArray(args, nargs);
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if (argstuple == NULL) {
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return NULL;
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}
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PyObject *kwdict;
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if (keywords == NULL || PyDict_Check(keywords)) {
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kwdict = keywords;
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}
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else {
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if (PyTuple_GET_SIZE(keywords)) {
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assert(args != NULL);
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kwdict = _PyStack_AsDict(args + nargs, keywords);
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if (kwdict == NULL) {
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Py_DECREF(argstuple);
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return NULL;
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}
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}
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else {
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keywords = kwdict = NULL;
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}
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}
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PyObject *result = NULL;
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if (_Py_EnterRecursiveCall(tstate, " while calling a Python object") == 0)
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{
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result = call(callable, argstuple, kwdict);
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_Py_LeaveRecursiveCall(tstate);
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}
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Py_DECREF(argstuple);
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if (kwdict != keywords) {
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Py_DECREF(kwdict);
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}
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return _Py_CheckFunctionResult(tstate, callable, result, NULL);
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}
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PyObject *
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PyVectorcall_Call(PyObject *callable, PyObject *tuple, PyObject *kwargs)
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{
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PyThreadState *tstate = _PyThreadState_GET();
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/* get vectorcallfunc as in PyVectorcall_Function, but without
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* the Py_TPFLAGS_HAVE_VECTORCALL check */
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Py_ssize_t offset = Py_TYPE(callable)->tp_vectorcall_offset;
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if (offset <= 0) {
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_PyErr_Format(tstate, PyExc_TypeError,
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"'%.200s' object does not support vectorcall",
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Py_TYPE(callable)->tp_name);
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return NULL;
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}
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vectorcallfunc func = *(vectorcallfunc *)(((char *)callable) + offset);
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if (func == NULL) {
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_PyErr_Format(tstate, PyExc_TypeError,
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"'%.200s' object does not support vectorcall",
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Py_TYPE(callable)->tp_name);
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return NULL;
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}
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Py_ssize_t nargs = PyTuple_GET_SIZE(tuple);
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/* Fast path for no keywords */
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if (kwargs == NULL || PyDict_GET_SIZE(kwargs) == 0) {
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return func(callable, _PyTuple_ITEMS(tuple), nargs, NULL);
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}
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/* Convert arguments & call */
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PyObject *const *args;
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PyObject *kwnames;
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args = _PyStack_UnpackDict(tstate,
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_PyTuple_ITEMS(tuple), nargs,
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kwargs, &kwnames);
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if (args == NULL) {
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return NULL;
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}
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PyObject *result = func(callable, args,
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nargs | PY_VECTORCALL_ARGUMENTS_OFFSET, kwnames);
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_PyStack_UnpackDict_Free(args, nargs, kwnames);
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return _Py_CheckFunctionResult(tstate, callable, result, NULL);
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}
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PyObject *
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_PyObject_Call(PyThreadState *tstate, PyObject *callable,
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PyObject *args, PyObject *kwargs)
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{
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ternaryfunc call;
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PyObject *result;
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|
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/* PyObject_Call() must not be called with an exception set,
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because it can clear it (directly or indirectly) and so the
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caller loses its exception */
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assert(!_PyErr_Occurred(tstate));
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assert(PyTuple_Check(args));
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assert(kwargs == NULL || PyDict_Check(kwargs));
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if (PyVectorcall_Function(callable) != NULL) {
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return PyVectorcall_Call(callable, args, kwargs);
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}
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else {
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call = Py_TYPE(callable)->tp_call;
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if (call == NULL) {
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_PyErr_Format(tstate, PyExc_TypeError,
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"'%.200s' object is not callable",
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Py_TYPE(callable)->tp_name);
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return NULL;
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}
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if (_Py_EnterRecursiveCall(tstate, " while calling a Python object")) {
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return NULL;
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}
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result = (*call)(callable, args, kwargs);
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_Py_LeaveRecursiveCall(tstate);
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return _Py_CheckFunctionResult(tstate, callable, result, NULL);
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}
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}
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PyObject *
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PyObject_Call(PyObject *callable, PyObject *args, PyObject *kwargs)
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{
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PyThreadState *tstate = _PyThreadState_GET();
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return _PyObject_Call(tstate, callable, args, kwargs);
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}
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PyObject *
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PyCFunction_Call(PyObject *callable, PyObject *args, PyObject *kwargs)
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{
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PyThreadState *tstate = _PyThreadState_GET();
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return _PyObject_Call(tstate, callable, args, kwargs);
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}
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/* --- PyFunction call functions ---------------------------------- */
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static PyObject* _Py_HOT_FUNCTION
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function_code_fastcall(PyThreadState *tstate, PyCodeObject *co,
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PyObject *const *args, Py_ssize_t nargs,
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PyObject *globals)
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{
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assert(tstate != NULL);
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assert(globals != NULL);
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/* XXX Perhaps we should create a specialized
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_PyFrame_New_NoTrack() that doesn't take locals, but does
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take builtins without sanity checking them.
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*/
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PyFrameObject *f = _PyFrame_New_NoTrack(tstate, co, globals, NULL);
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if (f == NULL) {
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return NULL;
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}
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PyObject **fastlocals = f->f_localsplus;
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for (Py_ssize_t i = 0; i < nargs; i++) {
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Py_INCREF(*args);
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fastlocals[i] = *args++;
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}
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PyObject *result = _PyEval_EvalFrame(tstate, f, 0);
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if (Py_REFCNT(f) > 1) {
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Py_DECREF(f);
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_PyObject_GC_TRACK(f);
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}
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else {
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++tstate->recursion_depth;
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Py_DECREF(f);
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--tstate->recursion_depth;
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}
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return result;
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}
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|
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PyObject *
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_PyFunction_Vectorcall(PyObject *func, PyObject* const* stack,
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size_t nargsf, PyObject *kwnames)
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{
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assert(PyFunction_Check(func));
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assert(kwnames == NULL || PyTuple_CheckExact(kwnames));
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Py_ssize_t nargs = PyVectorcall_NARGS(nargsf);
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assert(nargs >= 0);
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Py_ssize_t nkwargs = (kwnames == NULL) ? 0 : PyTuple_GET_SIZE(kwnames);
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assert((nargs == 0 && nkwargs == 0) || stack != NULL);
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/* kwnames must only contain strings and all keys must be unique */
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PyThreadState *tstate = _PyThreadState_GET();
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PyCodeObject *co = (PyCodeObject *)PyFunction_GET_CODE(func);
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PyObject *globals = PyFunction_GET_GLOBALS(func);
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PyObject *argdefs = PyFunction_GET_DEFAULTS(func);
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if (co->co_kwonlyargcount == 0 && nkwargs == 0 &&
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(co->co_flags & ~PyCF_MASK) == (CO_OPTIMIZED | CO_NEWLOCALS | CO_NOFREE))
|
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{
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if (argdefs == NULL && co->co_argcount == nargs) {
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return function_code_fastcall(tstate, co, stack, nargs, globals);
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}
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else if (nargs == 0 && argdefs != NULL
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&& co->co_argcount == PyTuple_GET_SIZE(argdefs)) {
|
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/* function called with no arguments, but all parameters have
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a default value: use default values as arguments .*/
|
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stack = _PyTuple_ITEMS(argdefs);
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return function_code_fastcall(tstate, co,
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stack, PyTuple_GET_SIZE(argdefs),
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globals);
|
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}
|
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}
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PyObject *kwdefs = PyFunction_GET_KW_DEFAULTS(func);
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PyObject *closure = PyFunction_GET_CLOSURE(func);
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PyObject *name = ((PyFunctionObject *)func) -> func_name;
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PyObject *qualname = ((PyFunctionObject *)func) -> func_qualname;
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PyObject **d;
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Py_ssize_t nd;
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if (argdefs != NULL) {
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d = _PyTuple_ITEMS(argdefs);
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nd = PyTuple_GET_SIZE(argdefs);
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assert(nd <= INT_MAX);
|
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}
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else {
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d = NULL;
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nd = 0;
|
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}
|
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return _PyEval_EvalCode(tstate,
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(PyObject*)co, globals, (PyObject *)NULL,
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stack, nargs,
|
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nkwargs ? _PyTuple_ITEMS(kwnames) : NULL,
|
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stack + nargs,
|
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nkwargs, 1,
|
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d, (int)nd, kwdefs,
|
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closure, name, qualname);
|
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}
|
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|
|
|
|
/* --- More complex call functions -------------------------------- */
|
|
|
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/* External interface to call any callable object.
|
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The args must be a tuple or NULL. The kwargs must be a dict or NULL. */
|
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PyObject *
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PyEval_CallObjectWithKeywords(PyObject *callable,
|
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PyObject *args, PyObject *kwargs)
|
|
{
|
|
PyThreadState *tstate = _PyThreadState_GET();
|
|
#ifdef Py_DEBUG
|
|
/* PyEval_CallObjectWithKeywords() must not be called with an exception
|
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set. It raises a new exception if parameters are invalid or if
|
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PyTuple_New() fails, and so the original exception is lost. */
|
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assert(!_PyErr_Occurred(tstate));
|
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#endif
|
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|
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if (args != NULL && !PyTuple_Check(args)) {
|
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_PyErr_SetString(tstate, PyExc_TypeError,
|
|
"argument list must be a tuple");
|
|
return NULL;
|
|
}
|
|
|
|
if (kwargs != NULL && !PyDict_Check(kwargs)) {
|
|
_PyErr_SetString(tstate, PyExc_TypeError,
|
|
"keyword list must be a dictionary");
|
|
return NULL;
|
|
}
|
|
|
|
if (args == NULL) {
|
|
return _PyObject_FastCallDictTstate(tstate, callable, NULL, 0, kwargs);
|
|
}
|
|
else {
|
|
return _PyObject_Call(tstate, callable, args, kwargs);
|
|
}
|
|
}
|
|
|
|
|
|
PyObject *
|
|
PyObject_CallObject(PyObject *callable, PyObject *args)
|
|
{
|
|
PyThreadState *tstate = _PyThreadState_GET();
|
|
assert(!_PyErr_Occurred(tstate));
|
|
if (args == NULL) {
|
|
return _PyObject_CallNoArgTstate(tstate, callable);
|
|
}
|
|
if (!PyTuple_Check(args)) {
|
|
_PyErr_SetString(tstate, PyExc_TypeError,
|
|
"argument list must be a tuple");
|
|
return NULL;
|
|
}
|
|
return _PyObject_Call(tstate, callable, args, NULL);
|
|
}
|
|
|
|
|
|
/* Call callable(obj, *args, **kwargs). */
|
|
PyObject *
|
|
_PyObject_Call_Prepend(PyThreadState *tstate, PyObject *callable,
|
|
PyObject *obj, PyObject *args, PyObject *kwargs)
|
|
{
|
|
assert(PyTuple_Check(args));
|
|
|
|
PyObject *small_stack[_PY_FASTCALL_SMALL_STACK];
|
|
PyObject **stack;
|
|
|
|
Py_ssize_t argcount = PyTuple_GET_SIZE(args);
|
|
if (argcount + 1 <= (Py_ssize_t)Py_ARRAY_LENGTH(small_stack)) {
|
|
stack = small_stack;
|
|
}
|
|
else {
|
|
stack = PyMem_Malloc((argcount + 1) * sizeof(PyObject *));
|
|
if (stack == NULL) {
|
|
PyErr_NoMemory();
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/* use borrowed references */
|
|
stack[0] = obj;
|
|
memcpy(&stack[1],
|
|
_PyTuple_ITEMS(args),
|
|
argcount * sizeof(PyObject *));
|
|
|
|
PyObject *result = _PyObject_FastCallDictTstate(tstate, callable,
|
|
stack, argcount + 1,
|
|
kwargs);
|
|
if (stack != small_stack) {
|
|
PyMem_Free(stack);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
|
|
/* --- Call with a format string ---------------------------------- */
|
|
|
|
static PyObject *
|
|
_PyObject_CallFunctionVa(PyThreadState *tstate, PyObject *callable,
|
|
const char *format, va_list va, int is_size_t)
|
|
{
|
|
PyObject* small_stack[_PY_FASTCALL_SMALL_STACK];
|
|
const Py_ssize_t small_stack_len = Py_ARRAY_LENGTH(small_stack);
|
|
PyObject **stack;
|
|
Py_ssize_t nargs, i;
|
|
PyObject *result;
|
|
|
|
if (callable == NULL) {
|
|
return null_error(tstate);
|
|
}
|
|
|
|
if (!format || !*format) {
|
|
return _PyObject_CallNoArgTstate(tstate, callable);
|
|
}
|
|
|
|
if (is_size_t) {
|
|
stack = _Py_VaBuildStack_SizeT(small_stack, small_stack_len,
|
|
format, va, &nargs);
|
|
}
|
|
else {
|
|
stack = _Py_VaBuildStack(small_stack, small_stack_len,
|
|
format, va, &nargs);
|
|
}
|
|
if (stack == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
if (nargs == 1 && PyTuple_Check(stack[0])) {
|
|
/* Special cases for backward compatibility:
|
|
- PyObject_CallFunction(func, "O", tuple) calls func(*tuple)
|
|
- PyObject_CallFunction(func, "(OOO)", arg1, arg2, arg3) calls
|
|
func(*(arg1, arg2, arg3)): func(arg1, arg2, arg3) */
|
|
PyObject *args = stack[0];
|
|
result = _PyObject_VectorcallTstate(tstate, callable,
|
|
_PyTuple_ITEMS(args),
|
|
PyTuple_GET_SIZE(args),
|
|
NULL);
|
|
}
|
|
else {
|
|
result = _PyObject_VectorcallTstate(tstate, callable,
|
|
stack, nargs, NULL);
|
|
}
|
|
|
|
for (i = 0; i < nargs; ++i) {
|
|
Py_DECREF(stack[i]);
|
|
}
|
|
if (stack != small_stack) {
|
|
PyMem_Free(stack);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
|
|
PyObject *
|
|
PyObject_CallFunction(PyObject *callable, const char *format, ...)
|
|
{
|
|
va_list va;
|
|
PyObject *result;
|
|
PyThreadState *tstate = _PyThreadState_GET();
|
|
|
|
va_start(va, format);
|
|
result = _PyObject_CallFunctionVa(tstate, callable, format, va, 0);
|
|
va_end(va);
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
/* PyEval_CallFunction is exact copy of PyObject_CallFunction.
|
|
* This function is kept for backward compatibility.
|
|
*/
|
|
PyObject *
|
|
PyEval_CallFunction(PyObject *callable, const char *format, ...)
|
|
{
|
|
va_list va;
|
|
PyObject *result;
|
|
PyThreadState *tstate = _PyThreadState_GET();
|
|
|
|
va_start(va, format);
|
|
result = _PyObject_CallFunctionVa(tstate, callable, format, va, 0);
|
|
va_end(va);
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
PyObject *
|
|
_PyObject_CallFunction_SizeT(PyObject *callable, const char *format, ...)
|
|
{
|
|
PyThreadState *tstate = _PyThreadState_GET();
|
|
|
|
va_list va;
|
|
va_start(va, format);
|
|
PyObject *result = _PyObject_CallFunctionVa(tstate, callable, format, va, 1);
|
|
va_end(va);
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
static PyObject*
|
|
callmethod(PyThreadState *tstate, PyObject* callable, const char *format, va_list va, int is_size_t)
|
|
{
|
|
assert(callable != NULL);
|
|
if (!PyCallable_Check(callable)) {
|
|
_PyErr_Format(tstate, PyExc_TypeError,
|
|
"attribute of type '%.200s' is not callable",
|
|
Py_TYPE(callable)->tp_name);
|
|
return NULL;
|
|
}
|
|
|
|
return _PyObject_CallFunctionVa(tstate, callable, format, va, is_size_t);
|
|
}
|
|
|
|
|
|
PyObject *
|
|
PyObject_CallMethod(PyObject *obj, const char *name, const char *format, ...)
|
|
{
|
|
PyThreadState *tstate = _PyThreadState_GET();
|
|
|
|
if (obj == NULL || name == NULL) {
|
|
return null_error(tstate);
|
|
}
|
|
|
|
PyObject *callable = PyObject_GetAttrString(obj, name);
|
|
if (callable == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
va_list va;
|
|
va_start(va, format);
|
|
PyObject *retval = callmethod(tstate, callable, format, va, 0);
|
|
va_end(va);
|
|
|
|
Py_DECREF(callable);
|
|
return retval;
|
|
}
|
|
|
|
|
|
/* PyEval_CallMethod is exact copy of PyObject_CallMethod.
|
|
* This function is kept for backward compatibility.
|
|
*/
|
|
PyObject *
|
|
PyEval_CallMethod(PyObject *obj, const char *name, const char *format, ...)
|
|
{
|
|
PyThreadState *tstate = _PyThreadState_GET();
|
|
if (obj == NULL || name == NULL) {
|
|
return null_error(tstate);
|
|
}
|
|
|
|
PyObject *callable = PyObject_GetAttrString(obj, name);
|
|
if (callable == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
va_list va;
|
|
va_start(va, format);
|
|
PyObject *retval = callmethod(tstate, callable, format, va, 0);
|
|
va_end(va);
|
|
|
|
Py_DECREF(callable);
|
|
return retval;
|
|
}
|
|
|
|
|
|
PyObject *
|
|
_PyObject_CallMethodId(PyObject *obj, _Py_Identifier *name,
|
|
const char *format, ...)
|
|
{
|
|
PyThreadState *tstate = _PyThreadState_GET();
|
|
if (obj == NULL || name == NULL) {
|
|
return null_error(tstate);
|
|
}
|
|
|
|
PyObject *callable = _PyObject_GetAttrId(obj, name);
|
|
if (callable == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
va_list va;
|
|
va_start(va, format);
|
|
PyObject *retval = callmethod(tstate, callable, format, va, 0);
|
|
va_end(va);
|
|
|
|
Py_DECREF(callable);
|
|
return retval;
|
|
}
|
|
|
|
|
|
PyObject *
|
|
_PyObject_CallMethod_SizeT(PyObject *obj, const char *name,
|
|
const char *format, ...)
|
|
{
|
|
PyThreadState *tstate = _PyThreadState_GET();
|
|
if (obj == NULL || name == NULL) {
|
|
return null_error(tstate);
|
|
}
|
|
|
|
PyObject *callable = PyObject_GetAttrString(obj, name);
|
|
if (callable == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
va_list va;
|
|
va_start(va, format);
|
|
PyObject *retval = callmethod(tstate, callable, format, va, 1);
|
|
va_end(va);
|
|
|
|
Py_DECREF(callable);
|
|
return retval;
|
|
}
|
|
|
|
|
|
PyObject *
|
|
_PyObject_CallMethodId_SizeT(PyObject *obj, _Py_Identifier *name,
|
|
const char *format, ...)
|
|
{
|
|
PyThreadState *tstate = _PyThreadState_GET();
|
|
if (obj == NULL || name == NULL) {
|
|
return null_error(tstate);
|
|
}
|
|
|
|
PyObject *callable = _PyObject_GetAttrId(obj, name);
|
|
if (callable == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
va_list va;
|
|
va_start(va, format);
|
|
PyObject *retval = callmethod(tstate, callable, format, va, 1);
|
|
va_end(va);
|
|
|
|
Py_DECREF(callable);
|
|
return retval;
|
|
}
|
|
|
|
|
|
/* --- Call with "..." arguments ---------------------------------- */
|
|
|
|
static PyObject *
|
|
object_vacall(PyThreadState *tstate, PyObject *base,
|
|
PyObject *callable, va_list vargs)
|
|
{
|
|
PyObject *small_stack[_PY_FASTCALL_SMALL_STACK];
|
|
PyObject **stack;
|
|
Py_ssize_t nargs;
|
|
PyObject *result;
|
|
Py_ssize_t i;
|
|
va_list countva;
|
|
|
|
if (callable == NULL) {
|
|
return null_error(tstate);
|
|
}
|
|
|
|
/* Count the number of arguments */
|
|
va_copy(countva, vargs);
|
|
nargs = base ? 1 : 0;
|
|
while (1) {
|
|
PyObject *arg = va_arg(countva, PyObject *);
|
|
if (arg == NULL) {
|
|
break;
|
|
}
|
|
nargs++;
|
|
}
|
|
va_end(countva);
|
|
|
|
/* Copy arguments */
|
|
if (nargs <= (Py_ssize_t)Py_ARRAY_LENGTH(small_stack)) {
|
|
stack = small_stack;
|
|
}
|
|
else {
|
|
stack = PyMem_Malloc(nargs * sizeof(stack[0]));
|
|
if (stack == NULL) {
|
|
PyErr_NoMemory();
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
i = 0;
|
|
if (base) {
|
|
stack[i++] = base;
|
|
}
|
|
|
|
for (; i < nargs; ++i) {
|
|
stack[i] = va_arg(vargs, PyObject *);
|
|
}
|
|
|
|
/* Call the function */
|
|
result = _PyObject_VectorcallTstate(tstate, callable, stack, nargs, NULL);
|
|
|
|
if (stack != small_stack) {
|
|
PyMem_Free(stack);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
|
|
PyObject *
|
|
PyObject_VectorcallMethod(PyObject *name, PyObject *const *args,
|
|
size_t nargsf, PyObject *kwnames)
|
|
{
|
|
assert(name != NULL);
|
|
assert(args != NULL);
|
|
assert(PyVectorcall_NARGS(nargsf) >= 1);
|
|
|
|
PyThreadState *tstate = _PyThreadState_GET();
|
|
PyObject *callable = NULL;
|
|
/* Use args[0] as "self" argument */
|
|
int unbound = _PyObject_GetMethod(args[0], name, &callable);
|
|
if (callable == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
if (unbound) {
|
|
/* We must remove PY_VECTORCALL_ARGUMENTS_OFFSET since
|
|
* that would be interpreted as allowing to change args[-1] */
|
|
nargsf &= ~PY_VECTORCALL_ARGUMENTS_OFFSET;
|
|
}
|
|
else {
|
|
/* Skip "self". We can keep PY_VECTORCALL_ARGUMENTS_OFFSET since
|
|
* args[-1] in the onward call is args[0] here. */
|
|
args++;
|
|
nargsf--;
|
|
}
|
|
PyObject *result = _PyObject_VectorcallTstate(tstate, callable,
|
|
args, nargsf, kwnames);
|
|
Py_DECREF(callable);
|
|
return result;
|
|
}
|
|
|
|
|
|
PyObject *
|
|
PyObject_CallMethodObjArgs(PyObject *obj, PyObject *name, ...)
|
|
{
|
|
PyThreadState *tstate = _PyThreadState_GET();
|
|
if (obj == NULL || name == NULL) {
|
|
return null_error(tstate);
|
|
}
|
|
|
|
PyObject *callable = NULL;
|
|
int is_method = _PyObject_GetMethod(obj, name, &callable);
|
|
if (callable == NULL) {
|
|
return NULL;
|
|
}
|
|
obj = is_method ? obj : NULL;
|
|
|
|
va_list vargs;
|
|
va_start(vargs, name);
|
|
PyObject *result = object_vacall(tstate, obj, callable, vargs);
|
|
va_end(vargs);
|
|
|
|
Py_DECREF(callable);
|
|
return result;
|
|
}
|
|
|
|
|
|
PyObject *
|
|
_PyObject_CallMethodIdObjArgs(PyObject *obj,
|
|
struct _Py_Identifier *name, ...)
|
|
{
|
|
PyThreadState *tstate = _PyThreadState_GET();
|
|
if (obj == NULL || name == NULL) {
|
|
return null_error(tstate);
|
|
}
|
|
|
|
PyObject *oname = _PyUnicode_FromId(name); /* borrowed */
|
|
if (!oname) {
|
|
return NULL;
|
|
}
|
|
|
|
PyObject *callable = NULL;
|
|
int is_method = _PyObject_GetMethod(obj, oname, &callable);
|
|
if (callable == NULL) {
|
|
return NULL;
|
|
}
|
|
obj = is_method ? obj : NULL;
|
|
|
|
va_list vargs;
|
|
va_start(vargs, name);
|
|
PyObject *result = object_vacall(tstate, obj, callable, vargs);
|
|
va_end(vargs);
|
|
|
|
Py_DECREF(callable);
|
|
return result;
|
|
}
|
|
|
|
|
|
PyObject *
|
|
PyObject_CallFunctionObjArgs(PyObject *callable, ...)
|
|
{
|
|
PyThreadState *tstate = _PyThreadState_GET();
|
|
va_list vargs;
|
|
PyObject *result;
|
|
|
|
va_start(vargs, callable);
|
|
result = object_vacall(tstate, NULL, callable, vargs);
|
|
va_end(vargs);
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
/* --- PyStack functions ------------------------------------------ */
|
|
|
|
PyObject *
|
|
_PyStack_AsDict(PyObject *const *values, PyObject *kwnames)
|
|
{
|
|
Py_ssize_t nkwargs;
|
|
PyObject *kwdict;
|
|
Py_ssize_t i;
|
|
|
|
assert(kwnames != NULL);
|
|
nkwargs = PyTuple_GET_SIZE(kwnames);
|
|
kwdict = _PyDict_NewPresized(nkwargs);
|
|
if (kwdict == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
for (i = 0; i < nkwargs; i++) {
|
|
PyObject *key = PyTuple_GET_ITEM(kwnames, i);
|
|
PyObject *value = *values++;
|
|
/* If key already exists, replace it with the new value */
|
|
if (PyDict_SetItem(kwdict, key, value)) {
|
|
Py_DECREF(kwdict);
|
|
return NULL;
|
|
}
|
|
}
|
|
return kwdict;
|
|
}
|
|
|
|
|
|
/* Convert (args, nargs, kwargs: dict) into a (stack, nargs, kwnames: tuple).
|
|
|
|
Allocate a new argument vector and keyword names tuple. Return the argument
|
|
vector; return NULL with exception set on error. Return the keyword names
|
|
tuple in *p_kwnames.
|
|
|
|
This also checks that all keyword names are strings. If not, a TypeError is
|
|
raised.
|
|
|
|
The newly allocated argument vector supports PY_VECTORCALL_ARGUMENTS_OFFSET.
|
|
|
|
When done, you must call _PyStack_UnpackDict_Free(stack, nargs, kwnames) */
|
|
static PyObject *const *
|
|
_PyStack_UnpackDict(PyThreadState *tstate,
|
|
PyObject *const *args, Py_ssize_t nargs,
|
|
PyObject *kwargs, PyObject **p_kwnames)
|
|
{
|
|
assert(nargs >= 0);
|
|
assert(kwargs != NULL);
|
|
assert(PyDict_Check(kwargs));
|
|
|
|
Py_ssize_t nkwargs = PyDict_GET_SIZE(kwargs);
|
|
/* Check for overflow in the PyMem_Malloc() call below. The subtraction
|
|
* in this check cannot overflow: both maxnargs and nkwargs are
|
|
* non-negative signed integers, so their difference fits in the type. */
|
|
Py_ssize_t maxnargs = PY_SSIZE_T_MAX / sizeof(args[0]) - 1;
|
|
if (nargs > maxnargs - nkwargs) {
|
|
_PyErr_NoMemory(tstate);
|
|
return NULL;
|
|
}
|
|
|
|
/* Add 1 to support PY_VECTORCALL_ARGUMENTS_OFFSET */
|
|
PyObject **stack = PyMem_Malloc((1 + nargs + nkwargs) * sizeof(args[0]));
|
|
if (stack == NULL) {
|
|
_PyErr_NoMemory(tstate);
|
|
return NULL;
|
|
}
|
|
|
|
PyObject *kwnames = PyTuple_New(nkwargs);
|
|
if (kwnames == NULL) {
|
|
PyMem_Free(stack);
|
|
return NULL;
|
|
}
|
|
|
|
stack++; /* For PY_VECTORCALL_ARGUMENTS_OFFSET */
|
|
|
|
/* Copy positional arguments */
|
|
for (Py_ssize_t i = 0; i < nargs; i++) {
|
|
Py_INCREF(args[i]);
|
|
stack[i] = args[i];
|
|
}
|
|
|
|
PyObject **kwstack = stack + nargs;
|
|
/* This loop doesn't support lookup function mutating the dictionary
|
|
to change its size. It's a deliberate choice for speed, this function is
|
|
called in the performance critical hot code. */
|
|
Py_ssize_t pos = 0, i = 0;
|
|
PyObject *key, *value;
|
|
unsigned long keys_are_strings = Py_TPFLAGS_UNICODE_SUBCLASS;
|
|
while (PyDict_Next(kwargs, &pos, &key, &value)) {
|
|
keys_are_strings &= Py_TYPE(key)->tp_flags;
|
|
Py_INCREF(key);
|
|
Py_INCREF(value);
|
|
PyTuple_SET_ITEM(kwnames, i, key);
|
|
kwstack[i] = value;
|
|
i++;
|
|
}
|
|
|
|
/* keys_are_strings has the value Py_TPFLAGS_UNICODE_SUBCLASS if that
|
|
* flag is set for all keys. Otherwise, keys_are_strings equals 0.
|
|
* We do this check once at the end instead of inside the loop above
|
|
* because it simplifies the deallocation in the failing case.
|
|
* It happens to also make the loop above slightly more efficient. */
|
|
if (!keys_are_strings) {
|
|
_PyErr_SetString(tstate, PyExc_TypeError,
|
|
"keywords must be strings");
|
|
_PyStack_UnpackDict_Free(stack, nargs, kwnames);
|
|
return NULL;
|
|
}
|
|
|
|
*p_kwnames = kwnames;
|
|
return stack;
|
|
}
|
|
|
|
static void
|
|
_PyStack_UnpackDict_Free(PyObject *const *stack, Py_ssize_t nargs,
|
|
PyObject *kwnames)
|
|
{
|
|
Py_ssize_t n = PyTuple_GET_SIZE(kwnames) + nargs;
|
|
for (Py_ssize_t i = 0; i < n; i++) {
|
|
Py_DECREF(stack[i]);
|
|
}
|
|
PyMem_Free((PyObject **)stack - 1);
|
|
Py_DECREF(kwnames);
|
|
}
|