diff options
Diffstat (limited to 'py/objtype.c')
| -rw-r--r-- | py/objtype.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/py/objtype.c b/py/objtype.c index 46482995d9..6421f7f099 100644 --- a/py/objtype.c +++ b/py/objtype.c @@ -90,13 +90,15 @@ STATIC int instance_count_native_bases(const mp_obj_type_t *type, const mp_obj_t // http://python-history.blogspot.com/2010/06/method-resolution-order.html // https://www.python.org/download/releases/2.3/mro/ // -// will return MP_OBJ_NULL if not found -// will return MP_OBJ_SENTINEL if special method was found in a native type base -// via slot id (meth_offset). As there can be only one native base, it's known that it -// applies to instance->subobj[0]. In most cases, we also don't need to know which type -// it was - because instance->subobj[0] is of that type. The only exception is when -// object is not yet constructed, then we need to know base native type to construct -// instance->subobj[0]. This case is handled via instance_count_native_bases() though. +// will keep lookup->dest[0]'s value (should be MP_OBJ_NULL on invocation) if attribute +// is not found +// will set lookup->dest[0] to MP_OBJ_SENTINEL if special method was found in a native +// type base via slot id (as specified by lookup->meth_offset). As there can be only one +// native base, it's known that it applies to instance->subobj[0]. In most cases, we also +// don't need to know which type it was - because instance->subobj[0] is of that type. +// The only exception is when object is not yet constructed, then we need to know base +// native type to construct its instance->subobj[0] from. But this case is handled via +// instance_count_native_bases(), which returns a native base which it saw. struct class_lookup_data { mp_obj_instance_t *obj; qstr attr; |