> On Oct 12, 2017, at 1:46 PM, Matthew Flatt <mfl...@cs.utah.edu> wrote:
> You could put all the type exports in a submodule. Then, you do need
> your own variant of `require`, but that variant can mostly just check
> for the presence of a type submodule, much the way that TR or
> `plai-typed` do. If the submodule is available, you can import it with
> the extra scope for types.
This makes a lot of sense to me, but I’m not completely sure how to
implement the providing side. I imagine that users may very well want
to use Racket’s namespace management features with types, leading to
pathological declarations like this:
(provide (except-out (all-from-out foo/bar)
If type-out is a provide transformer that doesn’t actually provide
anything, it merely expands to a submodule (perhaps using
`syntax-local-lift-module-end-declaration`), then it can’t possibly
understand that it should be doing something different when used in
“excluding” position. Is the unfortunate answer here that I can’t get
around needing to reimplement my own version of `provide` as well?
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