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<d_bot_>
<Cyclomatic Complexity> hi
<d_bot_>
<Cyclomatic Complexity> how can i get dune to print the last command it ran before failing?
<vsiles>
you cry. I usually dune clean and then dune build --display=short
<vsiles>
but if the command was a ppx, it doesn't work
<vsiles>
(to the best of my knowledge)
<vsiles>
there is --display=verbose if you need to see the actual command (like calls to ocamlopt & cie)
<d_bot_>
<Cyclomatic Complexity> I see. `--verbose` helped, thanks
<theblatte>
you can find these in the logs
<d_bot_>
<Cyclomatic Complexity> Now, I am getting a fatal error from `dune utop`
<d_bot_>
<Cyclomatic Complexity> I am just trying to find where a module comes from
<d_bot_>
<Cyclomatic Complexity> One of my dependencies is shadowed, I don't use any open, so it must come from another dependency
<d_bot_>
<Cyclomatic Complexity> How can I know which one it comes from?
<d_bot_>
<Cyclomatic Complexity> I usually use merlin locate, but it is broken
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<d_bot_>
<Christophe> I will ask here so I don't interrupt the other conversation 😃
<d_bot_>
<Christophe> I am wondering two things mainly , in what I have seen the reader type was using a variant, does it help with anything?
<d_bot_>
<Christophe> Also, I have a lot of weak types when I am trying to make the reader instances, and I think it shouldn't be necessary, but I don't see how to get rid of them
<d_bot_>
<octachron> Weak types are a known problem with combinator library, the usual solution of eta-expanding should work at the price of elegance.
<d_bot_>
<octachron> For the variant, it sounds like Haskell implementation defining an explicit type in order to hook the monad class type?
<d_bot_>
<Christophe> It was actually a OCaml solution I was looking at, but probably inspired from Haskell; I was wondering about the utility
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<d_bot_>
<Christophe> I'll try to see how I can eta-expand, it was not really obvious to me, I'll try again 🙂
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<d_bot_>
<Christophe> I cannot see how to eta-expand this for instance: ` let ask () = fun env -> env`, i've tried to annotate it to `let ask:'a. ('a, 'a) t = fun () -> fun env -> env` but it didn't change : `ask ()` is weakly polymorphic
<d_bot_>
<Christophe> (i forgot the `unit ->` in my type when I copied)
<d_bot_>
<octachron> The result of `ask ()` will always be weakly polymorphic if it is not inside a function body.
<d_bot_>
<Christophe> I see, maybe I can somehow change the definition of my type t to solve that … or see how I can put it inside a function
<d_bot_>
<Christophe> I have the same problem with `return` that would be more fundamental I guess
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<d_bot_>
<Christophe> I found out what would be the 'function body' that you were talking about Octachron, thanks, I replaced `let first_name = ask () >>| fun env -> env`by `let first_name () = ask () >>| fun env -> env`, it's more verbose to use but working great 👍
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<d_bot_>
<ostera> has anyone written a tool like bspack that runs on ocaml ~>4.11 ? 🤔
<d_bot_>
<ostera> essentially, many .ml/.mli in -> one .ml out
<d_bot_>
<anmonteiro> bspack doesn't?
<d_bot_>
<ostera> certainly seems to complain if I try to compile it under 4.11.1+flambda
<d_bot_>
<ostera> but a quick scan showed me it includes a copy of the parsetree lib
<d_bot_>
<rgrinberg> Why do you need such a tool? I hope it’s not to publish anything
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<d_bot_>
<ostera> not for others to consume, I was just exploring bundling in ppx support into caramel
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<d_bot_>
<antron> doesn't dune itself have something like that? not suggesting that it's a good idea for general use, of course