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<ShalokShalom>
Hi there :)
<ShalokShalom>
Does anybody know something about higher order modules here?
<ShalokShalom>
Higher order modules are not supported by F Sharp.Do you think its possible to use F Sharp in order to compile OCaml code with HOM, without integrating them in FSharp itself?In other words: Do you think its needed to implement HOM in order to transpile/parse them?
<ShalokShalom>
Or can I parse and transpile them, without their help on the parsing side?
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<Drup>
are you talking about writing an OCaml compiler in F# or compiler OCaml code into F# code ?
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<flux[m]>
sounds like the latter
<flux[m]>
I don't know how F# classes work, but it might be possible to transpile modules into them?
<Armael>
I doubt you'd get something usable out of that
<Armael>
(except maybe for trivial cases)
<flux[m]>
ShalokShalom: simply read through the modules section on the documentation - including the syntax part - and write a transpile for all those cases :)
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<lizzin>
intro tutorials say 'write this dune file.' but what should the file be named?
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<lizzin>
nvm
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<hio>
holy crap guys, you couldnt have made it any harder to install ocaml
<hio>
yet another error or manual config or install I need to make "No switch is currently set. Please use 'opam switch' to set or install a switch"
<hio>
what is it with these constant random problems
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<hio>
what am I supposed to do now?
<hio>
I list the switches and there are 500
<octachron>
"opam switch create 4.07.1" or "opam switch create 4.08.0" if you want the last version released few days ago
<hio>
I googled something and I did "opam switch create ." and now it's doing a bunch of stuff
<hio>
it seems to install 4.06.1 for some reason
<hio>
No idea what is going on
<freyr69>
hio: It installs the toolchain
<freyr69>
similar to rust's `rustup toolchain install ...`
<freyr69>
Default stable compiler is 4.06.1
<hio>
ok why cant opam install bubblewrap
<hio>
why make me go install all this stuff manually
<freyr69>
is bubblewrap installed?
<hio>
it is now
<hio>
I had to download it and compile it like it's 2005
<hio>
well more like 2015
<hio>
actually
<freyr69>
If you would install opam from the repository, it should draw the neede dependencies.
<hio>
what repository?
<hio>
I thought opam is the package manager
<freyr69>
Yes, it's available in many operating system repositories
<freyr69>
Arch, Debian, Freebsd, macos Homebrew
<hio>
ok it is telling me that dune is installed but yet I cant call it, and it isnt anywhere to be found
<freyr69>
It require to update the environment after toolchain installed
<freyr69>
so the binaries installed in toolchain's path should become visible to your shell
<freyr69>
in bash it's eval $(opam env)
<hio>
but I just created the environment, yet again I have to do this manually and add it to my ~/.bashrc?
<freyr69>
in many shells you could simply do `opam init` and it will do it automatically
<freyr69>
it will add the needed lines if you do `eval $(opam env)` or `opam init`
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<hio>
No current switch defined in /home/pc/.opam/config.
<hio>
I literally just installed a switch in this folder and now it's already complaining again
<Kitambi>
what does "opam env" say?
<hio>
same thing
<hio>
"No current switch defined in /home/pc/.opam/config."
<hio>
surely it means whatever version fits the .opam
<hio>
so how can it be that it doesnt find any correct version
<freyr69>
e.g. 4.08.0
<freyr69>
Not sure, for me it chooses the system compiler, so I suppose it creates a default switch
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<simon>
hi.
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<simon>
I'm trying to figure out how to best set up OPAM 2.x and Ocaml 4.08 in a CI environment. I can find the latest OPAM on the Ubuntu PPA 'avsm', but if I have to install Ocaml via OPAM, then it means compiling from source. isn't there a binary distribution of Ocaml 4.08 available for things like these?
<simon>
I'd prefer if my CI could skip the five minutes it takes to build Ocaml 4.08 :) (I'm not sure if takes longer, but that's what it took on mine.)
<companion_cube>
I guess you have to wait until the new docker images are released
<companion_cube>
(if you use the docker images for CI, that is)
<simon>
I, ehhh. I'm a noob with this stuff. I use a .travis.yml on GitHub and it calls a shell script that runs some shell commands assuming Ubuntu.
<simon>
so these docker instances you use don't include OPAM, do they?
<companion_cube>
they do, but it's more that their script is assuming you install local opam packages (eg if you're developing a lib with an opam file)
<companion_cube>
not sure if there's room for a custom script
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<simon>
ah, okay.
<simon>
I realize that Anil, whose PPA I'm looking at, has a company that was just acquired by Docker. so asking him if 4.08 can be put on the Ubuntu PPA when Docker images are an alternative are probably far-fetched. :-D
<hio>
Error: /home/pc/.opam/4.06.1/lib/fileutils/FilePath.cmi is not a compiled interface for this version of OCaml.
<hio>
why wont these weird errors end
<companion_cube>
sounds like a missing `eval $(opam env)`
<hio>
companion_cube: but if I do that, it seems to delete my other stuff from ~bashrc
<hio>
maybe it's not related, I keep getting this no matter what: /home/pc/.opam/4.06.1/.opam-switch/build/secp256k1.0.4.0/_build/default/src/secp256k1_wrap.c:224: undefined reference to `secp256k1_ecdsa_recover'
<hio>
Ocaml should be telling me why it cant find the symbol
<hio>
how am I supposed to know what it needs
<hio>
this is all backwards
<hio>
now I have ot guess which .so it tried to load and further guess which .so version it actually would need
<companion_cube>
(although maybe you're trying to install a package incompatible with your system libraries? like openssl?)
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<hio>
ok finally got it working, luckily some random guy on github happened to say the answer 3 years ago
<hio>
need to compile libsecp256k1 with ./configure --enable-module-recovery
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<hio>
so it only took me a bit over 2h to compile an ocaml project! not bad, but very draining
<hio>
I've had worse
<hio>
My favorite was a c++ project with 30+ external dependencies that you all had to download manually and install
<companion_cube>
initial setup is often difficult… even in modern languages like rust
<hio>
no, Rust is super easy. "cargo build" and it's done. My only complaint is their rustup tool
<companion_cube>
I was thinking of rustup.
<hio>
ha yeah
<hio>
luckily it's still fairly easy, x5 better than opam that's for sure
<companion_cube>
I've tried a bit of typescript and it's a total clusterfuck
<hio>
hahaha, yeah. THe first time I had to setup typescript it took me literally 1.5 or 2 days
<hio>
DAYS
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<companion_cube>
yeah, thankfully it works relatively well in VSCode
<hio>
of course if you just want to compile some file you can do it immediatley. But the whole setup of a real project, that#s what takes time
<hio>
well actually, I think I havent done that with ocaml either
<hio>
so the jury may still be out
<hio>
I only compiled something
<companion_cube>
the hardest part is to setup opam, imho
<companion_cube>
afterwards you can look at `dune`
<companion_cube>
which works pretty well
<hio>
I just installed the most popular vscode intellisense addon for ocaml and it immediately errored out. So I dont think that this journey ends
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<oni-on-ion>
5x than opam ? Heh
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<lizzin>
Why do I get an 'Unbound module Base' error, when doing 'open Base;;' in utop? `opam list base` shows that version v0.12.2 is installed. Fwiw, i tried following the realworldocaml book install notes.
<reynir>
#require "base";; first
<reynir>
Doesn't rwo suggest using coretop or something like that?
<lizzin>
utop # #require Base;;
<lizzin>
Wrong type of argument for directive `require'.
<lizzin>
reynir: the rwo examples use Base
<reynir>
lizzin: "base" not Base for the #require invocation
<lizzin>
and I was missing the quotes :(
<lizzin>
reynir: ty
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<lizzin>
reynir: does installing core also install base?
<reynir>
lizzin: hmm. I think core nowadays depends on base, but I'm not 100% sure
<reynir>
lizzin: I should give an explanation on the require thing...
<reynir>
base is an ocamlfind package that contains code with modules Base etc. The ocamlfind package 'base' is installed by the opam package 'base'. Ocamlfind packages and opam packages aren't always one-to-one, and the same goes for ocamlfind packages and modules.