#define morphable_attrs(struct_name, field) struct_name, field
#define morphed_ptr(ptr_like) ((morph_t*)__ptr(ptr_like))
#define morpher_uid(mobj) ((mobj)->uid)
#define morphable_attrs(struct_name, field) struct_name, field
#define morphed_ptr(ptr_like) ((morph_t*)__ptr(ptr_like))
#define morpher_uid(mobj) ((mobj)->uid)