Jiwon Seo's PEP 3102 implementation.
See SF#1549670.
The compiler package has not yet been updated.
diff --git a/Objects/funcobject.c b/Objects/funcobject.c
index 1ba74c5..06a4fe9 100644
--- a/Objects/funcobject.c
+++ b/Objects/funcobject.c
@@ -24,6 +24,7 @@
op->func_name = ((PyCodeObject *)code)->co_name;
Py_INCREF(op->func_name);
op->func_defaults = NULL; /* No default arguments */
+ op->func_kwdefaults = NULL; /* No keyword only defaults */
op->func_closure = NULL;
consts = ((PyCodeObject *)code)->co_consts;
if (PyTuple_Size(consts) >= 1) {
@@ -122,6 +123,38 @@
}
PyObject *
+PyFunction_GetKwDefaults(PyObject *op)
+{
+ if (!PyFunction_Check(op)) {
+ PyErr_BadInternalCall();
+ return NULL;
+ }
+ return ((PyFunctionObject *) op) -> func_kwdefaults;
+}
+
+int
+PyFunction_SetKwDefaults(PyObject *op, PyObject *defaults)
+{
+ if (!PyFunction_Check(op)) {
+ PyErr_BadInternalCall();
+ return -1;
+ }
+ if (defaults == Py_None)
+ defaults = NULL;
+ else if (defaults && PyDict_Check(defaults)) {
+ Py_INCREF(defaults);
+ }
+ else {
+ PyErr_SetString(PyExc_SystemError,
+ "non-dict keyword only default args");
+ return -1;
+ }
+ Py_XDECREF(((PyFunctionObject *)op) -> func_kwdefaults);
+ ((PyFunctionObject *) op) -> func_kwdefaults = defaults;
+ return 0;
+}
+
+PyObject *
PyFunction_GetClosure(PyObject *op)
{
if (!PyFunction_Check(op)) {
@@ -325,10 +358,49 @@
return 0;
}
+static PyObject *
+func_get_kwdefaults(PyFunctionObject *op)
+{
+ if (restricted())
+ return NULL;
+ if (op->func_kwdefaults == NULL) {
+ Py_INCREF(Py_None);
+ return Py_None;
+ }
+ Py_INCREF(op->func_kwdefaults);
+ return op->func_kwdefaults;
+}
+
+static int
+func_set_kwdefaults(PyFunctionObject *op, PyObject *value)
+{
+ PyObject *tmp;
+
+ if (restricted())
+ return -1;
+
+ if (value == Py_None)
+ value = NULL;
+ /* Legal to del f.func_defaults.
+ * Can only set func_kwdefaults to NULL or a dict. */
+ if (value != NULL && !PyDict_Check(value)) {
+ PyErr_SetString(PyExc_TypeError,
+ "func_kwdefaults must be set to a dict object");
+ return -1;
+ }
+ tmp = op->func_kwdefaults;
+ Py_XINCREF(value);
+ op->func_kwdefaults = value;
+ Py_XDECREF(tmp);
+ return 0;
+}
+
static PyGetSetDef func_getsetlist[] = {
{"func_code", (getter)func_get_code, (setter)func_set_code},
{"func_defaults", (getter)func_get_defaults,
(setter)func_set_defaults},
+ {"func_kwdefaults", (getter)func_get_kwdefaults,
+ (setter)func_set_kwdefaults},
{"func_dict", (getter)func_get_dict, (setter)func_set_dict},
{"__dict__", (getter)func_get_dict, (setter)func_set_dict},
{"func_name", (getter)func_get_name, (setter)func_set_name},
@@ -519,6 +591,7 @@
PyFunction_GET_GLOBALS(func), (PyObject *)NULL,
&PyTuple_GET_ITEM(arg, 0), PyTuple_Size(arg),
k, nk, d, nd,
+ PyFunction_GET_KW_DEFAULTS(func),
PyFunction_GET_CLOSURE(func));
if (k != NULL)