Implement appropriate __getnewargs__ for all immutable subclassable builtin

types.  The special handling for these can now be removed from save_newobj().
Add some testing for this.

Also add support for setting the 'fast' flag on the Python Pickler class,
which suppresses use of the memo.

Objects/complexobject.c

@@ -639,8 +639,15 @@ complex_conjugate(PyObject *self)
 	return PyComplex_FromCComplex(c);
 }
 
+static PyObject *
+complex_getnewargs(PyComplexObject *v)
+{
+	return Py_BuildValue("(D)", v->cval);
+}
+
 static PyMethodDef complex_methods[] = {
 	{"conjugate",	(PyCFunction)complex_conjugate,	METH_NOARGS},
+	{"__getnewargs__",	(PyCFunction)complex_getnewargs,	METH_NOARGS},
 	{NULL,		NULL}		/* sentinel */
 };
 

Objects/floatobject.c

@@ -726,6 +726,17 @@ float_subtype_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 	return new;
 }
 
+static PyObject *
+float_getnewargs(PyFloatObject *v)
+{
+	return Py_BuildValue("(d)", v->ob_fval);
+}
+
+static PyMethodDef float_methods[] = {
+	{"__getnewargs__",	(PyCFunction)float_getnewargs,	METH_NOARGS},
+	{NULL,		NULL}		/* sentinel */
+};
+
 PyDoc_STRVAR(float_doc,
 "float(x) -> floating point number\n\
 \n\
@@ -803,7 +814,7 @@ PyTypeObject PyFloat_Type = {
 	0,					/* tp_weaklistoffset */
 	0,					/* tp_iter */
 	0,					/* tp_iternext */
-	0,					/* tp_methods */
+	float_methods,				/* tp_methods */
 	0,					/* tp_members */
 	0,					/* tp_getset */
 	0,					/* tp_base */

Objects/intobject.c

@@ -850,6 +850,17 @@ int_subtype_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 	return new;
 }
 
+static PyObject *
+int_getnewargs(PyIntObject *v)
+{
+	return Py_BuildValue("(l)", v->ob_ival);
+}
+
+static PyMethodDef int_methods[] = {
+	{"__getnewargs__",	(PyCFunction)int_getnewargs,	METH_NOARGS},
+	{NULL,		NULL}		/* sentinel */
+};
+
 PyDoc_STRVAR(int_doc,
 "int(x[, base]) -> integer\n\
 \n\
@@ -931,7 +942,7 @@ PyTypeObject PyInt_Type = {
 	0,					/* tp_weaklistoffset */
 	0,					/* tp_iter */
 	0,					/* tp_iternext */
-	0,					/* tp_methods */
+	int_methods,				/* tp_methods */
 	0,					/* tp_members */
 	0,					/* tp_getset */
 	0,					/* tp_base */

Objects/longobject.c

@@ -2646,6 +2646,17 @@ long_subtype_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 	return (PyObject *)new;
 }
 
+static PyObject *
+long_getnewargs(PyLongObject *v)
+{
+	return Py_BuildValue("(N)", _PyLong_Copy(v));
+}
+
+static PyMethodDef long_methods[] = {
+	{"__getnewargs__",	(PyCFunction)long_getnewargs,	METH_NOARGS},
+	{NULL,		NULL}		/* sentinel */
+};
+
 PyDoc_STRVAR(long_doc,
 "long(x[, base]) -> integer\n\
 \n\
@@ -2726,7 +2737,7 @@ PyTypeObject PyLong_Type = {
 	0,					/* tp_weaklistoffset */
 	0,					/* tp_iter */
 	0,					/* tp_iternext */
-	0,					/* tp_methods */
+	long_methods,				/* tp_methods */
 	0,					/* tp_members */
 	0,					/* tp_getset */
 	0,					/* tp_base */

Objects/stringobject.c

@@ -3045,6 +3045,12 @@ string_splitlines(PyStringObject *self, PyObject *args)
 
 #undef SPLIT_APPEND
 
+static PyObject *
+string_getnewargs(PyStringObject *v)
+{
+	return Py_BuildValue("(s#)", v->ob_sval, v->ob_size);
+}
+
 
 static PyMethodDef
 string_methods[] = {
@@ -3091,6 +3097,7 @@ string_methods[] = {
 	 expandtabs__doc__},
 	{"splitlines", (PyCFunction)string_splitlines, METH_VARARGS,
 	 splitlines__doc__},
+	{"__getnewargs__",	(PyCFunction)string_getnewargs,	METH_NOARGS},
 	{NULL,     NULL}		     /* sentinel */
 };
 

Objects/tupleobject.c

@@ -587,6 +587,18 @@ tuplesubscript(PyTupleObject* self, PyObject* item)
 	}
 }
 
+static PyObject *
+tuple_getnewargs(PyTupleObject *v)
+{
+	return Py_BuildValue("(N)", tupleslice(v, 0, v->ob_size));
+	
+}
+
+static PyMethodDef tuple_methods[] = {
+	{"__getnewargs__",	(PyCFunction)tuple_getnewargs,	METH_NOARGS},
+	{NULL,		NULL}		/* sentinel */
+};
+
 static PyMappingMethods tuple_as_mapping = {
 	(inquiry)tuplelength,
 	(binaryfunc)tuplesubscript,
@@ -625,7 +637,7 @@ PyTypeObject PyTuple_Type = {
 	0,					/* tp_weaklistoffset */
 	tuple_iter,	    			/* tp_iter */
 	0,					/* tp_iternext */
-	0,					/* tp_methods */
+	tuple_methods,				/* tp_methods */
 	0,					/* tp_members */
 	0,					/* tp_getset */
 	0,					/* tp_base */

Objects/unicodeobject.c

@@ -5741,6 +5741,14 @@ unicode_endswith(PyUnicodeObject *self,
 }
 
 
+
+static PyObject *
+unicode_getnewargs(PyUnicodeObject *v)
+{
+	return Py_BuildValue("(u#)", v->str, v->length);
+}
+
+
 static PyMethodDef unicode_methods[] = {
 
     /* Order is according to common usage: often used methods should
@@ -5791,6 +5799,7 @@ static PyMethodDef unicode_methods[] = {
     {"freelistsize", (PyCFunction) unicode_freelistsize, METH_NOARGS},
 #endif
 
+    {"__getnewargs__",	(PyCFunction)unicode_getnewargs, METH_NOARGS},
     {NULL, NULL}
 };