On Tue, May 16, 2017 at 7:07 PM, 'John Clements' via Racket Users
<racket-users@googlegroups.com> wrote:
>> On May 16, 2017, at 11:26 AM, Robby Findler <ro...@eecs.northwestern.edu> 
>> wrote:
>> If you have control of the language<%> class, then you can do that via
>> the on-execute method. If you want to do that for all languages (which
>> is probably not a good idea, but you could use this approach and limit
>> it to a known set of languages), you could override the on-execute
>> method of the rep<%> object (you can add a mixin). Use this to attach
>> a module to the namespace of the user's program (e.g.,
>> #%my-private-state) that has minimal dependencies, and then some
>> library you write would require that module and provide a nice
>> interface, once it gets a hold of that minimal piece of state.
> Are there instances of language<%> that are used when the user has the 
> language level set to “use language declared in source” ? I’ve just spent a 
> few minutes looking over the DrRacket documentation for ‘read-language’, and 
> this documentation is suggesting to me that the language<%> interface is not 
> used for #lang-based languages, though I really can’t be sure. At a minimum, 
> I’m not seeing any references to language<%> in the section labeled "DrRacket 
> support for #lang-based Languages”.

There is a specific one that's used in that case.


You received this message because you are subscribed to the Google Groups 
"Racket Users" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to racket-users+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Reply via email to