bpo-20185: Convert float object implementation to Argument Clinic. (#543)

Based on patch by Vajrasky Kok.

Objects/clinic/floatobject.c.h

+/*[clinic input]
+preserve
+[clinic start generated code]*/
+
+PyDoc_STRVAR(float_is_integer__doc__,
+"is_integer($self, /)\n"
+"--\n"
+"\n"
+"Return True if the float is an integer.");
+
+#define FLOAT_IS_INTEGER_METHODDEF    \
+    {"is_integer", (PyCFunction)float_is_integer, METH_NOARGS, float_is_integer__doc__},
+
+static PyObject *
+float_is_integer_impl(PyObject *self);
+
+static PyObject *
+float_is_integer(PyObject *self, PyObject *Py_UNUSED(ignored))
+{
+    return float_is_integer_impl(self);
+}
+
+PyDoc_STRVAR(float___trunc____doc__,
+"__trunc__($self, /)\n"
+"--\n"
+"\n"
+"Return the Integral closest to x between 0 and x.");
+
+#define FLOAT___TRUNC___METHODDEF    \
+    {"__trunc__", (PyCFunction)float___trunc__, METH_NOARGS, float___trunc____doc__},
+
+static PyObject *
+float___trunc___impl(PyObject *self);
+
+static PyObject *
+float___trunc__(PyObject *self, PyObject *Py_UNUSED(ignored))
+{
+    return float___trunc___impl(self);
+}
+
+PyDoc_STRVAR(float___round____doc__,
+"__round__($self, ndigits=None, /)\n"
+"--\n"
+"\n"
+"Return the Integral closest to x, rounding half toward even.\n"
+"\n"
+"When an argument is passed, work like built-in round(x, ndigits).");
+
+#define FLOAT___ROUND___METHODDEF    \
+    {"__round__", (PyCFunction)float___round__, METH_FASTCALL, float___round____doc__},
+
+static PyObject *
+float___round___impl(PyObject *self, PyObject *o_ndigits);
+
+static PyObject *
+float___round__(PyObject *self, PyObject **args, Py_ssize_t nargs, PyObject *kwnames)
+{
+    PyObject *return_value = NULL;
+    PyObject *o_ndigits = NULL;
+
+    if (!_PyArg_UnpackStack(args, nargs, "__round__",
+        0, 1,
+        &o_ndigits)) {
+        goto exit;
+    }
+
+    if (!_PyArg_NoStackKeywords("__round__", kwnames)) {
+        goto exit;
+    }
+    return_value = float___round___impl(self, o_ndigits);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(float_conjugate__doc__,
+"conjugate($self, /)\n"
+"--\n"
+"\n"
+"Return self, the complex conjugate of any float.");
+
+#define FLOAT_CONJUGATE_METHODDEF    \
+    {"conjugate", (PyCFunction)float_conjugate, METH_NOARGS, float_conjugate__doc__},
+
+static PyObject *
+float_conjugate_impl(PyObject *self);
+
+static PyObject *
+float_conjugate(PyObject *self, PyObject *Py_UNUSED(ignored))
+{
+    return float_conjugate_impl(self);
+}
+
+PyDoc_STRVAR(float_hex__doc__,
+"hex($self, /)\n"
+"--\n"
+"\n"
+"Return a hexadecimal representation of a floating-point number.\n"
+"\n"
+">>> (-0.1).hex()\n"
+"\'-0x1.999999999999ap-4\'\n"
+">>> 3.14159.hex()\n"
+"\'0x1.921f9f01b866ep+1\'");
+
+#define FLOAT_HEX_METHODDEF    \
+    {"hex", (PyCFunction)float_hex, METH_NOARGS, float_hex__doc__},
+
+static PyObject *
+float_hex_impl(PyObject *self);
+
+static PyObject *
+float_hex(PyObject *self, PyObject *Py_UNUSED(ignored))
+{
+    return float_hex_impl(self);
+}
+
+PyDoc_STRVAR(float_fromhex__doc__,
+"fromhex($type, string, /)\n"
+"--\n"
+"\n"
+"Create a floating-point number from a hexadecimal string.\n"
+"\n"
+">>> float.fromhex(\'0x1.ffffp10\')\n"
+"2047.984375\n"
+">>> float.fromhex(\'-0x1p-1074\')\n"
+"-5e-324");
+
+#define FLOAT_FROMHEX_METHODDEF    \
+    {"fromhex", (PyCFunction)float_fromhex, METH_O|METH_CLASS, float_fromhex__doc__},
+
+PyDoc_STRVAR(float_as_integer_ratio__doc__,
+"as_integer_ratio($self, /)\n"
+"--\n"
+"\n"
+"Return integer ratio.\n"
+"\n"
+"Return a pair of integers, whose ratio is exactly equal to the original float\n"
+"and with a positive denominator.\n"
+"\n"
+"Raise OverflowError on infinities and a ValueError on NaNs.\n"
+"\n"
+">>> (10.0).as_integer_ratio()\n"
+"(10, 1)\n"
+">>> (0.0).as_integer_ratio()\n"
+"(0, 1)\n"
+">>> (-.25).as_integer_ratio()\n"
+"(-1, 4)");
+
+#define FLOAT_AS_INTEGER_RATIO_METHODDEF    \
+    {"as_integer_ratio", (PyCFunction)float_as_integer_ratio, METH_NOARGS, float_as_integer_ratio__doc__},
+
+static PyObject *
+float_as_integer_ratio_impl(PyObject *self);
+
+static PyObject *
+float_as_integer_ratio(PyObject *self, PyObject *Py_UNUSED(ignored))
+{
+    return float_as_integer_ratio_impl(self);
+}
+
+PyDoc_STRVAR(float___getnewargs____doc__,
+"__getnewargs__($self, /)\n"
+"--\n"
+"\n");
+
+#define FLOAT___GETNEWARGS___METHODDEF    \
+    {"__getnewargs__", (PyCFunction)float___getnewargs__, METH_NOARGS, float___getnewargs____doc__},
+
+static PyObject *
+float___getnewargs___impl(PyObject *self);
+
+static PyObject *
+float___getnewargs__(PyObject *self, PyObject *Py_UNUSED(ignored))
+{
+    return float___getnewargs___impl(self);
+}
+
+PyDoc_STRVAR(float___getformat____doc__,
+"__getformat__($type, typestr, /)\n"
+"--\n"
+"\n"
+"You probably don\'t want to use this function.\n"
+"\n"
+"  typestr\n"
+"    Must be \'double\' or \'float\'.\n"
+"\n"
+"It exists mainly to be used in Python\'s test suite.\n"
+"\n"
+"This function returns whichever of \'unknown\', \'IEEE, big-endian\' or \'IEEE,\n"
+"little-endian\' best describes the format of floating point numbers used by the\n"
+"C type named by typestr.");
+
+#define FLOAT___GETFORMAT___METHODDEF    \
+    {"__getformat__", (PyCFunction)float___getformat__, METH_O|METH_CLASS, float___getformat____doc__},
+
+static PyObject *
+float___getformat___impl(PyTypeObject *type, const char *typestr);
+
+static PyObject *
+float___getformat__(PyTypeObject *type, PyObject *arg)
+{
+    PyObject *return_value = NULL;
+    const char *typestr;
+
+    if (!PyArg_Parse(arg, "s:__getformat__", &typestr)) {
+        goto exit;
+    }
+    return_value = float___getformat___impl(type, typestr);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(float___set_format____doc__,
+"__set_format__($type, typestr, fmt, /)\n"
+"--\n"
+"\n"
+"You probably don\'t want to use this function.\n"
+"\n"
+"  typestr\n"
+"    Must be \'double\' or \'float\'.\n"
+"  fmt\n"
+"    Must be one of \'unknown\', \'IEEE, big-endian\' or \'IEEE, little-endian\',\n"
+"    and in addition can only be one of the latter two if it appears to\n"
+"    match the underlying C reality.\n"
+"\n"
+"It exists mainly to be used in Python\'s test suite.\n"
+"\n"
+"Override the automatic determination of C-level floating point type.\n"
+"This affects how floats are converted to and from binary strings.");
+
+#define FLOAT___SET_FORMAT___METHODDEF    \
+    {"__set_format__", (PyCFunction)float___set_format__, METH_FASTCALL|METH_CLASS, float___set_format____doc__},
+
+static PyObject *
+float___set_format___impl(PyTypeObject *type, const char *typestr,
+                          const char *fmt);
+
+static PyObject *
+float___set_format__(PyTypeObject *type, PyObject **args, Py_ssize_t nargs, PyObject *kwnames)
+{
+    PyObject *return_value = NULL;
+    const char *typestr;
+    const char *fmt;
+
+    if (!_PyArg_ParseStack(args, nargs, "ss:__set_format__",
+        &typestr, &fmt)) {
+        goto exit;
+    }
+
+    if (!_PyArg_NoStackKeywords("__set_format__", kwnames)) {
+        goto exit;
+    }
+    return_value = float___set_format___impl(type, typestr, fmt);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(float___format____doc__,
+"__format__($self, format_spec, /)\n"
+"--\n"
+"\n"
+"Formats the float according to format_spec.");
+
+#define FLOAT___FORMAT___METHODDEF    \
+    {"__format__", (PyCFunction)float___format__, METH_O, float___format____doc__},
+
+static PyObject *
+float___format___impl(PyObject *self, PyObject *format_spec);
+
+static PyObject *
+float___format__(PyObject *self, PyObject *arg)
+{
+    PyObject *return_value = NULL;
+    PyObject *format_spec;
+
+    if (!PyArg_Parse(arg, "U:__format__", &format_spec)) {
+        goto exit;
+    }
+    return_value = float___format___impl(self, format_spec);
+
+exit:
+    return return_value;
+}
+/*[clinic end generated code: output=9257442b321d6a8b input=a9049054013a1b77]*/

Tools/clinic/clinic.py

@@ -2042,7 +2042,6 @@ __rmatmul__
 __rmod__
 __rmul__
 __ror__
-__round__
 __rpow__
 __rrshift__
 __rshift__