Sync contrib/tools/python3 layout with upstream

* Move src/ subdir contents to the top of the layout
* Rename self-written lib -> lib2 to avoid CaseFolding warning from the VCS
* Regenerate contrib/libs/python proxy-headers accordingly
4ccc62ac1511abcf0fed14ccade38e984e088f1e

1 files changed, 110 insertions, 0 deletions

diff --git a/contrib/tools/python3/Objects/clinic/enumobject.c.h b/contrib/tools/python3/Objects/clinic/enumobject.c.h
new file mode 100644
index 00000000000..adf78efd0d6
--- /dev/null
+++ b/contrib/tools/python3/Objects/clinic/enumobject.c.h
@@ -0,0 +1,110 @@
+/*[clinic input]
+preserve
+[clinic start generated code]*/
+
+#if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)
+#  include "pycore_gc.h"            // PyGC_Head
+#  include "pycore_runtime.h"       // _Py_ID()
+#endif
+
+
+PyDoc_STRVAR(enum_new__doc__,
+"enumerate(iterable, start=0)\n"
+"--\n"
+"\n"
+"Return an enumerate object.\n"
+"\n"
+"  iterable\n"
+"    an object supporting iteration\n"
+"\n"
+"The enumerate object yields pairs containing a count (from start, which\n"
+"defaults to zero) and a value yielded by the iterable argument.\n"
+"\n"
+"enumerate is useful for obtaining an indexed list:\n"
+"    (0, seq[0]), (1, seq[1]), (2, seq[2]), ...");
+
+static PyObject *
+enum_new_impl(PyTypeObject *type, PyObject *iterable, PyObject *start);
+
+static PyObject *
+enum_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
+{
+    PyObject *return_value = NULL;
+    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)
+
+    #define NUM_KEYWORDS 2
+    static struct {
+        PyGC_Head _this_is_not_used;
+        PyObject_VAR_HEAD
+        PyObject *ob_item[NUM_KEYWORDS];
+    } _kwtuple = {
+        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
+        .ob_item = { &_Py_ID(iterable), &_Py_ID(start), },
+    };
+    #undef NUM_KEYWORDS
+    #define KWTUPLE (&_kwtuple.ob_base.ob_base)
+
+    #else  // !Py_BUILD_CORE
+    #  define KWTUPLE NULL
+    #endif  // !Py_BUILD_CORE
+
+    static const char * const _keywords[] = {"iterable", "start", NULL};
+    static _PyArg_Parser _parser = {
+        .keywords = _keywords,
+        .fname = "enumerate",
+        .kwtuple = KWTUPLE,
+    };
+    #undef KWTUPLE
+    PyObject *argsbuf[2];
+    PyObject * const *fastargs;
+    Py_ssize_t nargs = PyTuple_GET_SIZE(args);
+    Py_ssize_t noptargs = nargs + (kwargs ? PyDict_GET_SIZE(kwargs) : 0) - 1;
+    PyObject *iterable;
+    PyObject *start = 0;
+
+    fastargs = _PyArg_UnpackKeywords(_PyTuple_CAST(args)->ob_item, nargs, kwargs, NULL, &_parser, 1, 2, 0, argsbuf);
+    if (!fastargs) {
+        goto exit;
+    }
+    iterable = fastargs[0];
+    if (!noptargs) {
+        goto skip_optional_pos;
+    }
+    start = fastargs[1];
+skip_optional_pos:
+    return_value = enum_new_impl(type, iterable, start);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(reversed_new__doc__,
+"reversed(sequence, /)\n"
+"--\n"
+"\n"
+"Return a reverse iterator over the values of the given sequence.");
+
+static PyObject *
+reversed_new_impl(PyTypeObject *type, PyObject *seq);
+
+static PyObject *
+reversed_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
+{
+    PyObject *return_value = NULL;
+    PyTypeObject *base_tp = &PyReversed_Type;
+    PyObject *seq;
+
+    if ((type == base_tp || type->tp_init == base_tp->tp_init) &&
+        !_PyArg_NoKeywords("reversed", kwargs)) {
+        goto exit;
+    }
+    if (!_PyArg_CheckPositional("reversed", PyTuple_GET_SIZE(args), 1, 1)) {
+        goto exit;
+    }
+    seq = PyTuple_GET_ITEM(args, 0);
+    return_value = reversed_new_impl(type, seq);
+
+exit:
+    return return_value;
+}
+/*[clinic end generated code: output=aba0ddbeab1601e3 input=a9049054013a1b77]*/