Clojurians Log v2

@alexmiller: bumping the question above about pasting riddley into test.check

I just looked at the source and it's just a few hundred lines. I'm guessing licensing/CA issues would be the biggest thing?

sorry, I didn’t belong to this channel so didn’t get any notifications

haven’t read all the back chat yet but pulling riddley into test-check would require some things wrt license and contribution

maybe this isn’t a problem you should be solving in test.check

yeah, that's why I opened CLJ-1997; I'd rather not solve it :)

unless you're just objecting to it being a problem

(the gen/let thing in particular)

if I read all this correctly, let allows you to handle both dependent and independent generators but because it can’t tell the difference it performs the more complicated dependent expansion

right

to which maybe I would suggest that you should add something that just lets you do the independent generator case with the less complicated expansion rather than trying to detect the difference

and/or to let users tell you which is which

I suggested a much more complex macro a while back (analagous to for) but reid didn't like it :)

so I agree with you actually

sounds like a quorum to me :)

haha

see how easy that was? :)

@alexmiller: do you think a fully-featured analog to clojure.core/for would be a good fit?

(examples here: https://github.com/gfredericks/test.chuck#for)

the recomendation would then be "if you care about optimizing shrinking, use for instead of let"

yeah, I’ve looked at it in the past

it seems fine, but I can’t say for as a name had much resonance for me

ah yeah; I was just making the analogy to clojure.core/for I guess

monads and whatnot :)

let+

over

o_O

I’m not known for being very successful at suggesting good names :)

but I would prefer something that’s not a variant of let

and I think it’s different enough from clojure.core/for that I’d be a little leery of overlapping that name

what sort of difference are you thinking of?

but maybe I could be convinced

:parallel is an extra feature; but I think every aspect of clojure.core/for has an analog

what does parallel do again?

it's exactly the thing you use to solve the problem with let

just independent

it's how you say "these are independent"

yeah

you could imagine clojure.core/for having something analogous that would let you iterate over two seqs in parallel

I guess putting on my Rich hair, I would say: what problem are we trying to solve and what are some alternatives and tradeoffs between them?

this is one option

what are some others

the problem is that gen/let is very easy to use and expressing parallelism is comparably difficult (`gen/tuple` and destructuring)

and so people will either naively use gen/let or else be grumpy that they can't

there’s a lot packed into for (some might argue too much :) - is there some way to take it apart into reusable pieces?

it's also possible to backwards-compatibly just add :parallel to gen/let

I literally read "hat"

so I needed you to point it out but now I enjoy it

good, thanks :)

hereby trademarking that

unfortunately, I have to go pick up my dog right now, but I think it’s worth considering the tradeoffs of adding :parallel to let

yeah I like that idea more now that you've made me think about it

pulling in either riddley or tools.analyzer seems like a large step so I would try to avoid it if possible

ACK