diff options
| -rw-r--r-- | immutables/_map.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/immutables/_map.c b/immutables/_map.c index 9f57582..652e171 100644 --- a/immutables/_map.c +++ b/immutables/_map.c @@ -810,15 +810,17 @@ map_node_bitmap_assoc(MapNode_Bitmap *self, return (MapNode *)self; } - /* We're setting a new value for the key we had before. - Make a new bitmap node with a replaced value, and return it. */ + /* We're setting a new value for the key we had before. */ if (mutid != 0 && self->b_mutid == mutid) { + /* We've been mutating this node before: update inplace. */ Py_INCREF(val); Py_SETREF(self->b_array[val_idx], val); Py_INCREF(self); return (MapNode *)self; } else { + /* Make a new bitmap node with a replaced value, + and return it. */ MapNode_Bitmap *ret = map_node_bitmap_clone(self, mutid); if (ret == NULL) { return NULL; |