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py/obj: Add "full" and "empty" non-variable-length mp_obj_type_t.

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This will always have the maximum/minimum size of a mp_obj_type_t
representation and can be used as a member in other structs.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
This commit is contained in:
Jim Mussared
2022-04-22 13:05:56 +10:00
committed by Damien George
parent 5ddf671944
commit e8355eb163
15 changed files with 40 additions and 21 deletions
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5
py/objtype.c
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@@ -1148,7 +1148,10 @@ mp_obj_t mp_obj_new_type(qstr name, mp_obj_t bases_tuple, mp_obj_t locals_dict)
#endif
}
mp_obj_type_t *o = m_new0(mp_obj_type_t, 1);
// Allocate a full-sized mp_obj_full_type_t instance (i.e. all slots / extended fields).
// Given that Python types use almost all the slots anyway, this doesn't cost anything
// extra.
mp_obj_type_t *o = (mp_obj_type_t *)m_new0(mp_obj_full_type_t, 1);
o->base.type = &mp_type_type;
o->flags = base_flags;
o->name = name;