<companion_cube>
Hey @butanium please use a paste instead of copying code here, it's spamming irc
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<d_bot>
<orbitz> Wooo, I wrote a tool to take openapi spec for github and produce OCaml code. My resulting file is 1.5 megs large and takes almost 2 minutes to compile.
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<d_bot>
<Et7f3> Can you try to use diverse -dtiming
<d_bot>
<Boby> Hi, I have a tree and I want to draw it, so I have tried this : with k = size, arb = tree, but result is not the good, what should I try ?
<d_bot>
<octachron> Generally, a test case where you cannot track the error is too complex. You should try on a much simpler example.
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<d_bot>
<VPhantom> Is it mandatory to name variants with only the first letter captalized? I'm making a type which represents a bunch of acronyms and it's a bit unsightly to have only their first letter in uppercase. i.e. `An` vs `AN`. Perhaps more importantly: even if my compiler seems to allow it, is it a really bad idea to have all-uppercase variants?
<d_bot>
<octachron> Only the first letter needs to be capitalized, the case of the other letters is up to you.
<zozozo>
VPhantom : all-uppercase variants are not necessarily bad in my opinion, actually, the Unix module of the stdlib uses all-caps variant names for unix errors (see https://ocaml.org/api/Unix.html )
<d_bot>
<VPhantom> Well well! That's a very compelling example. Thank you zozozo!
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<d_bot>
<VPhantom> Another design decision: to return whether a side-effecting operation was successful and why if not, should I return a `(unit, ...) result` or make myself a custom success vs error variant? I'm leaning towards the result but it feels weird returning `unit` in there.
<Fardale>
Why not an option then?
<Fardale>
None for succes and Some e for error
<d_bot>
<orbitz> @VPhantom I recommend the result. It works well with a result monad: `do_my_thing () >>= fun () -> do_next_thing ()`
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<d_bot>
<orbitz> It just fits better into all the existing tools someone will have.
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<d_bot>
<VPhantom> Good point on the monad. I do use `let*` for results in other places already; in that sense a unit result can make sense.
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<tankf33der>
o/
<tankf33der>
opam install ocamlfind failed on alpine linux:
<d_bot>
<octachron> That looks like you are using a system compiler without the dev version of the `ocaml` package.
<d_bot>
<octachron> or the `ocaml-compiler-libs` package: `Toploop` is from the `compilerlibs` library that is normally bundled with the compiler but some distribution splits from the compiler package.
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<d_bot>
<myrkraverk> Hello, I'm reading _modern compiler construction in ml_ by appel, and I'm new to ML [never mind why I chose that version of the book.] Is this a place where I can discuss my battle with standard ml? If not, do you know another discord for it?
<d_bot>
<octachron> I am not aware of a SML discord, and it is generally fine to discuss SML here.
<d_bot>
<octachron> The concepts are similar.
<d_bot>
<myrkraverk> Thanks.
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<ns12>
There's a #sml channel on the Libera Chat IRC network.
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<d_bot>
<orbitz> Does anyone know why ppx_deriving_yojson with `meta = true` produces value called `_`?
<d_bot>
<orbitz> I don't know how to escape it, but it has a value in it that is an underscore
<humasect>
undefined ? (erlang..)
<d_bot>
<orbitz> It sets it to the "keys" variable
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<d_bot>
<orbitz> When you do ocamlc -c foo.ml you get a .cmo and a .cmi, is it possible to nly generate the .cmi?
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<d_bot>
<myrkraverk> Is it active?
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<d_bot>
<myrkraverk> [And I'm not on libera, though I guess I could change that.]
<d_bot>
<myrkraverk> .
<d_bot>
<myrkraverk> In Standard ML, is there an obvious choice for a simple symbol table [for an assembler; project/challenge 1-1 just has single character labels, so there are only ever 26 entries.]
<companion_cube>
so you mean, an array?
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<d_bot>
<myrkraverk> Well, possibly. Each entry has a lot of stuff, like, a label can be used several times before it's defined.
<d_bot>
<myrkraverk> The symbol table might be different for a 1-pass and a 2-pass assembler. Both are part of challenge 1-1.
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<d_bot>
<myrkraverk> .
<d_bot>
<myrkraverk> Then of course, later on exercises and further projects add multi character labels, so it won't always be just 26 entries.
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