Note that to provide information, the code must first be compiled.ĭune is able to automatically create /.merlin/ files, which are needed to help merlin find the compiled files. The main tool used to provide information to editors about OCaml codebases. Which tell you to run opam user-setup install. Run opam install user-setup to install it, and then follow the instructions, Supports plugins written in any language, including OCaml using theĪutomatically configures several editors to use merlin, ocp-indent, and ocp-index if they are installed. Vim only really needs merlin, and optionally, ocp-indent or ocamlformat.Note: As of 2022 both packages seem abandoned. flycheck-ocaml: OCaml linter for Emacs, using Merlin internally.merlin-eldoc: Eldoc support for OCaml, using Merlin internally.merlin-mode: Code completion, linting, code navigation and type analysis mode for Emacs.dune: Dune major mode and utility commands for Emacs.While it has less features than Tuareg it covers the basics well and also features toplevel and debugger integration. OCaml major mode for Emacs that can also run the toplevel and the debugger within Emacs.Īnother (older) OCaml major mode for Emacs. The Reason/OCaml plugin for Visual Studio Code.Īllows for all the advantages provided by Merlin with the convenience of the VSCode IDE.

See the editor setup page for more instructions on how to setup individual editors. For an OCaml beginner, the recommended editor of choice is Visual Studio Code with the OCaml Platform plugin.

Online visual studio code compiler