emacs/lisp/langs/icejam-lang-ocaml.el
Maciej Szlosarczyk 13ed56fa04
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2024-07-30 13:42:46 +03:00

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EmacsLisp

;;; ocaml -- summary -*- lexical-binding: t; -*-
;;; Commentary:
;;; Code:
(require 'icejam-transient)
(use-package tuareg
:defer t
:straight t
:config
(add-hook 'tuareg-mode-hook 'merlin-mode))
(use-package merlin
:defer t
:straight t)
(use-package reason-mode
:defer t
:straight t
:config (setq refmt-command 'opam))
(use-package dune
:defer t
:straight t)
(transient-define-prefix icejam-lang-ocaml/context-menu ()
"Ocaml Actions."
["OCaml actions"
[""
("r" "Reload" icejam-revert-buffer-no-confirm)
("i" "Indent" icejam-mark-and-indent-whole-buffer)]
[""
("f" "Format" ocamlformat)
("e" "Opam Env" tuareg-opam-update-env)]]
[""
("q" "Quit" keyboard-quit)])
(defun icejam/load-ocaml-site-packages ()
"Generate ocaml config."
(let ((opam-share (ignore-errors (car (process-lines "opam" "var" "share")))))
(when (and opam-share (file-directory-p opam-share))
;; Register Merlin
(add-to-list 'load-path (expand-file-name "emacs/site-lisp" opam-share))
(autoload 'merlin-mode "merlin" nil t nil)
(autoload 'ocamlformat "ocamlformat" nil t nil)
(autoload 'utop "utop" nil t nil)
(autoload 'dune "dune" nil t nil)
;; Use opam switch to lookup ocamlmerlin binary
(setq merlin-command 'opam)))
(define-key tuareg-mode-map (kbd "C-c l") 'icejam-lang-ocaml/context-menu))
;; OCaml setup
(add-hook 'tuareg-mode-hook 'merlin-mode)
(add-hook 'tuareg-mode-hook 'icejam/load-ocaml-site-packages)
(add-hook 'merlin-mode-hook (lambda ()
(unbind-key "C-c C-d" merlin-mode-map)
(unbind-key "C-c C-l" merlin-mode-map)
(unbind-key "C-c C-n" merlin-mode-map)
(unbind-key "C-c C-p" merlin-mode-map)
(unbind-key "C-c C-r" merlin-mode-map)
(unbind-key "C-c C-t" merlin-mode-map)
(unbind-key "C-c C-x" merlin-mode-map)
(unbind-key "C-c &" merlin-mode-map)))
;; Use tuareg-opam with lock files
(add-to-list 'auto-mode-alist '("\\.opam.locked\\'" . tuareg-opam-mode))
(transient-define-prefix icejam-lang/reasonml-context-menu ()
"ReasonML Actions."
["ReasonML actions"
[""
("r" "Reload" icejam-revert-buffer-no-confirm)
("i" "Indent" icejam-mark-and-indent-whole-buffer)]
[""
("f" "Format" refmt)
("e" "Opam Env" tuareg-opam-update-env)]]
[""
("q" "Quit" keyboard-quit)])
(defun icejam-lang/activate-reason-mode ()
"Generate reason config."
(define-key
reason-mode-map (kbd "C-c l") 'icejam-lang/reasonml-context-menu))
;; Reason setup
(add-hook 'reason-mode-hook
(lambda ()
(add-hook 'before-save-hook #'refmt-before-save)))
(add-hook 'reason-mode-hook 'icejam-lang/activate-reason-mode)
(add-hook 'reason-mode-hook 'merlin-mode)
(provide 'icejam-lang-ocaml)
;;; icejam-lang-ocaml.el ends here