Investigations - OCaml Development

Standard Tools

OPAM

• https://opam.ocaml.org/doc/Install.html

Dune

• https://github.com/ocaml/dune

VSCode

• https://github.com/ocamllabs/vscode-ocaml-platform

  • opam install ocaml-lsp-server

  • But is not compatible with OCamlMake…?

  • worth trying first maybe..

  • recommending (or forcing ) to use https://github.com/ocaml/dune

• 名前: OCaml and Reason IDE https://marketplace.visualstudio.com/items?itemName=freebroccolo.reasonml

  • ocamlmerlin needed

• “vscode flymake”?

• Error: Extension map_open doesn't expect a path argument shown for

  • with core.v0.11.3 and ppx_let.v0.11.0

  • fixed with OCaml 4.12.0 and upgrading everything.

  • ∗ installed ppx_let.v0.14.0
    ∗ installed core.v0.14.1

GitHub Actions

• https://github.com/ocaml/setup-ocaml/issues

  • But it is slow in setup…?

  • (I need to search more.. and maybe fully migrate my project to Dune…

Implementation Tips

• https://discuss.ocaml.org/t/pretty-printer-for-custom-data-types-best-practices/6723/3

• https://dev.realworldocaml.org/records.html

• https://stackoverflow.com/questions/64742628/unbound-module-stdlib

(de-facto Standard) Libraries

• JaneStreet Base

  • Polymorphic comparison operator: https://discuss.ocaml.org/t/monomorphic-comparison-operator-of-janestreet-base-library/1585

• JaneStreet Core

  • https://opensource.janestreet.com/core/

  • Command-line examples

    • https://www.brendanlong.com/how-to-use-corecommandparam.html#commands-with-more-arguments

    • https://dev.realworldocaml.org/command-line-parsing.html

  • JaneStreet Core/Base’s consideration about polymorphic operators.

    • https://discuss.ocaml.org/t/monomorphic-comparison-operator-of-janestreet-base-library/1585

    • https://discuss.ocaml.org/t/removing-polymorphic-compare-from-core/2994

• https://github.com/mirage/ocaml-uri

  • with CoHttp etc.

Failure "No SSL or TLS support compiled into Conduit"

• https://discuss.ocaml.org/t/exception-failure-no-ssl-or-tls-support-compiled-into-conduit/11939

$ opam install lwt_ssl
  or
  tls-lwt

Learning

• https://camlspotter.hatenablog.com/entry/20110509/1304933919

• https://dev.realworldocaml.org/index.html

• https://en.wikipedia.org/wiki/Applicative_functor

• https://github.com/ocaml-community/awesome-ocaml#blogs

• https://github.com/janestreet/ppx_let