Hi,
Andy Wingo <wi...@pobox.com> skribis:
> Since the expression reader can generate prefab instances, they are
> useful when convenient serialization is more important than
> abstraction. Opaque and transparent structures also can be serialized,
> however, if they are defined with define-serializable-struct as
> described in Datatypes and Serialization.
So I’d be in the ‘define-serializable-struct’ camp, so to speak.
Prefabs raise an number of interesting issues. For instance, what’s the
meaning of #s(sprout bean #f 17) in a module where ‘sprout’ is unbound?
In a module where it’s bound to a given RTD vs. in a module where it’s
bound to a different RTD? Does ‘read’ have to be current-module-aware?
Etc.
This example is a bit scary to me:
> (define lunch '#s(sprout bean))
> (struct sprout (kind) #:prefab)
> (sprout? lunch)
#t
since it implies that types are compared by name.
Thanks,
Ludo’.
