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-rw-r--r--py/runtime.c46
1 files changed, 26 insertions, 20 deletions
diff --git a/py/runtime.c b/py/runtime.c
index f1633c6c5..0ff78b2a9 100644
--- a/py/runtime.c
+++ b/py/runtime.c
@@ -854,6 +854,31 @@ mp_obj_t mp_load_attr(mp_obj_t base, qstr attr) {
}
}
+// Given a member that was extracted from an instance, convert it correctly
+// and put the result in the dest[] array for a possible method call.
+// Conversion means dealing with static/class methods, callables, and values.
+// see http://docs.python.org/3/howto/descriptor.html
+void mp_convert_member_lookup(mp_obj_t self, const mp_obj_type_t *type, mp_obj_t member, mp_obj_t *dest) {
+ if (MP_OBJ_IS_TYPE(member, &mp_type_staticmethod)) {
+ // return just the function
+ dest[0] = ((mp_obj_static_class_method_t*)member)->fun;
+ } else if (MP_OBJ_IS_TYPE(member, &mp_type_classmethod)) {
+ // return a bound method, with self being the type of this object
+ dest[0] = ((mp_obj_static_class_method_t*)member)->fun;
+ dest[1] = (mp_obj_t)type;
+ } else if (MP_OBJ_IS_TYPE(member, &mp_type_type)) {
+ // Don't try to bind types (even though they're callable)
+ dest[0] = member;
+ } else if (mp_obj_is_callable(member)) {
+ // return a bound method, with self being this object
+ dest[0] = member;
+ dest[1] = self;
+ } else {
+ // class member is a value, so just return that value
+ dest[0] = member;
+ }
+}
+
// no attribute found, returns: dest[0] == MP_OBJ_NULL, dest[1] == MP_OBJ_NULL
// normal attribute found, returns: dest[0] == <attribute>, dest[1] == MP_OBJ_NULL
// method attribute found, returns: dest[0] == <method>, dest[1] == <self>
@@ -888,26 +913,7 @@ void mp_load_method_maybe(mp_obj_t obj, qstr attr, mp_obj_t *dest) {
mp_map_t *locals_map = mp_obj_dict_get_map(type->locals_dict);
mp_map_elem_t *elem = mp_map_lookup(locals_map, MP_OBJ_NEW_QSTR(attr), MP_MAP_LOOKUP);
if (elem != NULL) {
- // check if the methods are functions, static or class methods
- // see http://docs.python.org/3/howto/descriptor.html
- if (MP_OBJ_IS_TYPE(elem->value, &mp_type_staticmethod)) {
- // return just the function
- dest[0] = ((mp_obj_static_class_method_t*)elem->value)->fun;
- } else if (MP_OBJ_IS_TYPE(elem->value, &mp_type_classmethod)) {
- // return a bound method, with self being the type of this object
- dest[0] = ((mp_obj_static_class_method_t*)elem->value)->fun;
- dest[1] = type;
- } else if (MP_OBJ_IS_TYPE(elem->value, &mp_type_type)) {
- // Don't try to bind types
- dest[0] = elem->value;
- } else if (mp_obj_is_callable(elem->value)) {
- // return a bound method, with self being this object
- dest[0] = elem->value;
- dest[1] = obj;
- } else {
- // class member is a value, so just return that value
- dest[0] = elem->value;
- }
+ mp_convert_member_lookup(obj, type, elem->value, dest);
}
}
}