[racket-dev] Should `dynamic-require`d libraries be in package dependencies?

From: Sam Tobin-Hochstadt (samth at cs.indiana.edu)
Date: Tue Nov 26 08:43:18 EST 2013

I think TR is checking for, and then dynamic-requireing, the Optimization
Coach implementation.

Sam
On Nov 26, 2013 8:36 AM, "Robby Findler" <robby at eecs.northwestern.edu>
wrote:

> Why does TR have to do something special for DrRacket? Can't it just
> depend on the (small) package drracket-plugin-lib? There should then be no
> need for dynamic-requires.
>
> Robby
>
>
> On Tue, Nov 26, 2013 at 7:12 AM, Vincent St-Amour <stamourv at ccs.neu.edu>wrote:
>
>> You could guard the `dynamic-require' with a dynamic check for the
>> existence of what it's requiring. In the specific case of xrepl, the
>> dynamic check should probably guard command registration so that, e.g.
>> the macro stepper commands are not available if the macro stepper is not
>> installed.
>>
>> That's what Typed Racket does to decide whether to register the
>> Optimization Coach button in DrRacket.
>>
>> Vincent
>>
>>
>>
>> At Tue, 26 Nov 2013 01:55:08 -0500,
>> Asumu Takikawa wrote:
>> >
>> > Hi all,
>> >
>> > Should dynamically required libraries induce a package dependency?
>> >
>> > Take for example the "xrepl-lib" package. It currently depends on five
>> > other packages, but I think two of them can be dropped and `raco setup`
>> > won't complain.
>> >
>> > On the other hand, XREPL may `dynamic-require` the macro stepper (one of
>> > the dependencies that can be dropped). The same is true for DrRacket
>> > (not listed as a dependency), but it doesn't make much sense to make the
>> > XREPL package depend on DrRacket.
>> >
>> > Is there a best practice for these kinds of cases yet?
>> >
>> > Cheers,
>> > Asumu
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>
>
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