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<discocaml>
<parataxis> I'm having a problem with inline_test. my program builds fine without it, but when I add the ppx to my dune file it builds fail with "File "_none_", line 1:
<discocaml>
<parataxis> Error: No implementations provided for the following modules:"
<discocaml>
<parataxis> "Unix referenced from index/index.cmxa(Index__Postings)"
<discocaml>
<parataxis> I'm having a problem with inline_test. my program builds fine without it, but when I add the ppx to my dune file builds fail with "File "_none_", line 1:
<discocaml>
<parataxis> Error: No implementations provided for the following modules:"
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<discocaml>
<cemerick> has dbuenzli ever commented on his view of pvec's status/future?
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<discocaml>
<drupyog> @companion_cube what's the purpose of Trace.Meta_map ? It doesn't seem used
<discocaml>
<rgrinberg> @drupyog coincidentally, I've been experimenting with an RB map/set in dune that uses separate constructors for Red/Black to save one bit
<discocaml>
<rgrinberg> @drupyog coincidentally, I've been experimenting with an RB map/set in dune that uses separate constructors for Red/Black to save one field
<discocaml>
<rgrinberg> I don't know if this an issue with my pdf reader (preview), but the table of contents doesn't work
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<discocaml>
<drupyog> you're the first to have that issue
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<tom1212>
Hi! Given a functor module B (A: A_sig) : B_sig with module A = A = struct module A = A ... end would it be possible to ensure that if you pass a superset of A_sig then it gets reflected in B.A?
<tom1212>
if there are workarounds or ways to achieve something similar I'm interested!
<octachron>
No, this is not possible. The solution is to not store functor argument inside functor body.
<tom1212>
thanks!
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<discocaml>
<drupyog> @companion_cube I would pay a lot for a polymorphic function decorator that open a span the size of the decorated function, and attach its argument+output ....
<discocaml>
<drupyog> @companion_cube I would pay a lot for a decorator that open a span the size of the decorated function, and attach its argument+output ....
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<companion_cube>
oh, using ppx_deriving.show or something?
<companion_cube>
I mean that's doable, but ppxes are really not my thing
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<companion_cube>
(the output might be a bit harder but still)
<discocaml>
<drupyog> it's quite harder, because you don't know the types at all
<discocaml>
<drupyog> unless you annotates profusely, but, grmbl.
<companion_cube>
I like to annotate but I hear you
<companion_cube>
anyway with `let@` I'm ok annotating by hand, mostly
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<Janni>
Hello! I'm trying to do some pretty-printing based on Format.fprintf. The trouble is that I'd like to generate parantheses wherever necessary. I'm guessing this is not possible in my case, but I'd like to make sure...
<Janni>
Let's say that there is a user-supplied function f : formatter -> t -> unit
<Janni>
I have a transformer t : (formatter -> 'a -> unit) -> formatter -> unit
<Janni>
I'd like the transformer to add parentheses around the output of f, iff f produces a space somewhere in its output.
<Janni>
I suppose that it's fundamentally impossible to examine the output up to this point for generic formatters.
<Janni>
Am I right? Is there a workaround?
<octachron>
The issue is rather than you want to maybe insert a "(" before the output of the inner output, so you cannot share the underlying printing device.
<octachron>
With this constraint, the solution is to redirect the inner printer to a separate buffer and take the decision to insert the parenthesis once the rendering to the buffer is done.
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<Janni>
Oh, alright. It's easy actually! Thanks!
<Janni>
(I hadn't seen the buffer stuff in the Format module.)
<Janni>
But it will be much less efficient, obviously...
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