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The type infrastructure, eg. RootType and the Data classes, are only as
portable as the Binary and Typeable instances. The latter in particular
is not terribly portable (it is even brittle under some innocuous
I can't think of any *provable* way to solve this, nor any fully
distributed way. But a decent solution would be to add a member to
class Data a where
desc :: DataDesc a
version :: String
With the requirement that two types with the same version are serial
compatible (versions should also be unique across types). Thus if you
make a change to the Binary representation, you are responsible for
updating the version.
There are a couple challenges:
* For existing modules, if we define version on their behalf, we will
have a hard time keeping up with updates. That is, the dependencies
of the package that defines these have to be pretty strict.
* For new modules, making sure that there are no name collisions.
There may be a better solution assuming an Udon package manager though
(since we can reference modules and ranges of modules directly).
The implementation of the main Udon library is too coupled. I don't
want to export the DataDesc constructor, the unsafe* functions about
ExtRefs, and a host of other things. Thoughtful cleanup is needed.