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init-javascript.el
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init-javascript.el
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;;; init-javascript.el --- Support for Javascript and derivatives -*- lexical-binding: t -*-
;;; Commentary:
;;; Code:
(maybe-require-package 'json-mode)
(maybe-require-package 'js2-mode)
(maybe-require-package 'typescript-mode)
(maybe-require-package 'indium)
;;; Basic js-mode setup
(add-to-list 'auto-mode-alist '("\\.\\(js\\|es6\\)\\(\\.erb\\)?\\'" . js-mode))
(when (maybe-require-package 'rjsx-mode)
(add-to-list 'auto-mode-alist '("\\.jsx\\'" . rjsx-mode))
(add-to-list 'auto-mode-alist '("components\\/.*\\.js\\'" . rjsx-mode))
(add-to-list 'auto-mode-alist '("src\\/routes\\/.*\\.js\\'" . rjsx-mode))
(with-eval-after-load 'rjsx-mode
(define-key rjsx-mode-map "<" nil)
(define-key rjsx-mode-map (kbd "C-d") nil)
(define-key rjsx-mode-map ">" nil)))
(setq-default js-indent-level 2)
(when (maybe-require-package 'vue-mode)
(add-to-list 'auto-mode-alist '("\\.vue\\'" . vue-mode))
(with-eval-after-load 'vue-mode))
(when (maybe-require-package 'ng2-mode)
(add-to-list 'auto-mode-alist '("*\\.{component|service|pipe|directive|guard|module}\\.ts\\'" . ng2-mode))
(add-to-list 'auto-mode-alist '("*\\.component\\.html\\'" . ng2-mode))
(with-eval-after-load 'ng2-mode))
;; js2-mode
;; Change some defaults: customize them to override
(setq-default js2-bounce-indent-p nil)
(with-eval-after-load 'js2-mode
;; Disable js2 mode's syntax error highlighting by default...
(setq-default js2-mode-show-parse-errors nil
js2-mode-show-strict-warnings nil)
;; ... but enable it if flycheck can't handle javascript
(autoload 'flycheck-get-checker-for-buffer "flycheck")
(defun sanityinc/enable-js2-checks-if-flycheck-inactive ()
(unless (flycheck-get-checker-for-buffer)
(setq-local js2-mode-show-parse-errors t)
(setq-local js2-mode-show-strict-warnings t)
(when (derived-mode-p 'js-mode)
(js2-minor-mode 1))))
(add-hook 'js-mode-hook 'sanityinc/enable-js2-checks-if-flycheck-inactive)
(add-hook 'js2-mode-hook 'sanityinc/enable-js2-checks-if-flycheck-inactive)
(add-hook 'js2-mode-hook (lambda () (setq mode-name "JS2")))
(when (maybe-require-package 'ac-js2)
(with-eval-after-load 'company
(add-to-list 'company-backends 'ac-js2-company)))
(js2-imenu-extras-setup))
;; In Emacs >= 25, the following is an alias for js-indent-level anyway
(setq-default js2-basic-offset 2)
(add-to-list 'interpreter-mode-alist (cons "node" 'js2-mode))
(with-eval-after-load 'js2-mode
(sanityinc/major-mode-lighter 'js2-mode "JS2")
(sanityinc/major-mode-lighter 'js2-jsx-mode "JSX2"))
;; (when (and (or (executable-find "rg") (executable-find "ag"))
;; (maybe-require-package 'xref-js2))
;; (when (executable-find "rg")
;; (setq-default xref-js2-search-program 'rg))
;; (defun sanityinc/enable-xref-js2 ()
;; (add-hook 'xref-backend-functions #'xref-js2-xref-backend nil t))
;; (with-eval-after-load 'js
;; (define-key js-mode-map (kbd "M-.") nil)
;; (add-hook 'js-mode-hook 'sanityinc/enable-xref-js2))
;; (with-eval-after-load 'js2-mode
;; (define-key js2-mode-map (kbd "M-.") nil)
;; (add-hook 'js2-mode-hook 'sanityinc/enable-xref-js2)))
;;; Coffeescript
(when (maybe-require-package 'coffee-mode)
(with-eval-after-load 'coffee-mode
(setq-default coffee-tab-width js-indent-level))
(when (fboundp 'coffee-mode)
(add-to-list 'auto-mode-alist '("\\.coffee\\.erb\\'" . coffee-mode))))
;; Run and interact with an inferior JS via js-comint.el
(when (maybe-require-package 'js-comint)
(setq js-comint-program-command "node")
(defvar inferior-js-minor-mode-map (make-sparse-keymap))
(define-key inferior-js-minor-mode-map "\C-x\C-e" 'js-send-last-sexp)
(define-key inferior-js-minor-mode-map "\C-cb" 'js-send-buffer)
(define-minor-mode inferior-js-keys-mode
"Bindings for communicating with an inferior js interpreter."
:init-value nil :lighter " InfJS" :keymap inferior-js-minor-mode-map)
(dolist (hook '(js2-mode-hook js-mode-hook))
(add-hook hook 'inferior-js-keys-mode)))
;; Alternatively, use skewer-mode
(when (maybe-require-package 'skewer-mode)
(with-eval-after-load 'skewer-mode
(add-hook 'skewer-mode-hook
(lambda () (inferior-js-keys-mode -1)))))
(when (maybe-require-package 'add-node-modules-path)
(dolist (mode '(typescript-mode js-mode js2-mode coffee-mode))
(add-hook (derived-mode-hook-name mode) 'add-node-modules-path)))
(when (maybe-require-package 'js2-refactor)
(add-hook 'js2-mode-hook #'js2-refactor-mode)
(js2r-add-keybindings-with-prefix "C-c C-m"))
(when (and (executable-find "prettier")
(maybe-require-package 'reformatter))
(reformatter-define prettier-javascript
:program "prettier"
:args '("--parser=babel"))
(add-hook 'js2-mode-hook 'prettier-javascript-on-save-mode)
(add-hook 'rjsx-mode-hook 'prettier-javascript-on-save-mode))
;; (when (and (executable-find "tern")
;; (maybe-require-package 'tern))
;; (add-hook 'js2-mode-hook 'tern-mode)
;; (add-hook 'rjsx-mode-hook 'tern-mode)
;; (add-hook 'web-mode-hook 'tern-mode)
;; (with-eval-after-load 'tern
;; ;; Disable completion keybindings, as we use xref-js2 instead
;; (define-key tern-mode-keymap (kbd "M-.") nil)
;; (define-key tern-mode-keymap (kbd "M-,") nil)
;; (when (maybe-require-package 'company-tern)
;; (add-to-list 'company-backends 'company-tern))))
(when (maybe-require-package 'js-doc)
(setq js-doc-mail-address "your email address"
js-doc-author (format "your name <%s>" js-doc-mail-address)
js-doc-url "url of your website"
js-doc-license "license name")
(add-hook 'js2-mode-hook
#'(lambda ()
(define-key js2-mode-map "\C-ci" 'js-doc-insert-function-doc)
(define-key js2-mode-map "@" 'js-doc-insert-tag))))
;; Add NodeJS error format
(with-eval-after-load 'compile
'(progn
(add-to-list 'compilation-error-regexp-alist-alist
(list 'node "^[ ]+at \\(?:[^\(\n]+ \(\\)?\\([a-zA-Z\.0-9_/-]+\\):\\([0-9]+\\):\\([0-9]+\\)\)?$"
1 ;; file
2 ;; line
3 ;; column
))
(add-to-list 'compilation-error-regexp-alist 'node)))
(provide 'init-javascript)
;;; init-javascript.el ends here