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init-javascript.el
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(use-package js2-mode
:mode "\\.js\\'"
:hook (js2-mode . js2-imenu-extras-mode)
:init
(setq js2-include-node-externs t
js-indent-level 2
js2-global-externs '("$" "jQuery" "jquery" "_")
js2-mode-show-parse-errors nil
js2-mode-show-strict-warnings nil
js2-bounce-indent-p nil
js-indent-align-list-continuation nil
js-chain-indent nil
js-switch-indent-offset 2)
:config
;; "_" as word so company completes kabeb-case
(modify-syntax-entry ?_ "w" js2-mode-syntax-table)
;; (general-define-key
;; :states '(normal)
;; :keymaps 'js2-mode-map
;; "g d" 'js2-jump-to-definition)
(general-define-key
:states '(insert emacs)
:keymaps 'js2-mode-map
"RET" 'js2-line-break))
;; (setq mode-name (all-the-icons-icon-for-mode major-mode :height 0.8 :v-adjust 0))
(add-hook! 'js2-mode-hook (setq mode-name "JS2"))
(use-package js2-refactor
:hook (js2-mode . js2-refactor-mode)
:config
(jester/with-major-leader 'js2-mode-map
"r" (lambda! (counsel-M-x "^js2r- "))))
(use-package js-doc
:after js2-mode)
(use-package skewer-mode
:init
(setq httpd-port 9871)
:hook js2-mode
:config
(jester/with-major-leader 'js2-mode-map
"e" 'skewer-eval-last-expression)
(evil-set-initial-state 'skewer-error-mode 'motion))
(use-package rjsx-mode
:init
(defun jester/_sx-file-p (file-ext)
"Check whether current buffer file is a jsx/tsx file.
`FILE-EXT' is file extension, can be \"js\" or \"ts\"."
(let ((ext (file-name-extension (buffer-file-name))))
(when (or (string-equal ext file-ext))
(point-min)
(while (looking-at "^//")
(beginning-of-line 2))
(looking-at (rx (sequence bol
"import"
(1+ (or word "," "{" "}" whitespace))
(or "from 'react'" "from \"react\"")
(optional ";")
eol))))))
(defun jester/jsx-file-p ()
"Check whether current buffer file is a jsx file."
(jester/_sx-file-p "js"))
(defun jester/tsx-file-p ()
"Check whether current buffer file is a jsx file."
(jester/_sx-file-p "ts"))
(setq magic-mode-alist
(append '((jester/jsx-file-p . rjsx-mode)) magic-mode-alist))
(setq magic-mode-alist
(append '((jester/tsx-file-p . web-mode)) magic-mode-alist))
(add-hook! 'rjsx-mode-hook
(add-hook 'post-command-hook 'jester/on-post-newline nil t)
(setq imenu-create-index-function (lambda () (jester/merge-imenu 'js2-mode-create-imenu-index))
imenu-generic-expression '((nil "^ *static \\(propTypes\\|defaultProps\\) = {$" 1))
mode-name "JSX"
emmet-expand-jsx-className? t)
(aggressive-indent-mode -1))
(require 'web-mode)
(custom-set-faces '(rjsx-tag
((t (:inherit web-mode-html-tag-face)))))
:mode "\\.jsx\\'"
:config
(evil-define-key 'insert rjsx-mode-map (kbd "S-<backspace>") #'rjsx-delete-creates-full-tag)
(modify-syntax-entry ?_ "w" rjsx-mode-syntax-table))
(use-package typescript-ts-mode
:mode "\\.ts\\'"
:config
;; remove auto mode for tsx files because we want web-mode there
(setq auto-mode-alist (cl-remove "\\.tsx\\'" auto-mode-alist :test 'string-equal :key 'car))
(setq auto-mode-alist (cl-remove "\\.tsx?\\'" auto-mode-alist :test 'string-equal :key 'car))
;; web-mode is also removed, add it back
(add-to-list 'auto-mode-alist '("\\.tsx\\'" . web-mode))
(add-hook! 'typescript-ts-mode-hook (setq mode-name "TypeScript(ts)")))
(use-package eacl
:init
;; (general-define-key
;; "H-," 'eacl-complete-line
;; "H-." 'eacl-complete-multiline)
:commands (eacl-complete-line eacl-complete-multiline))
;; https://emacs-china.org/t/javascript/7860?u=jjpandari
(defun jester/js2r-toggle-object-property-access-style ()
"Convert the string at point into a template string."
(interactive)
(js2r--guard)
(js2r--wait-for-parse
(save-excursion
(let ((node (js2-node-at-point)))
(if (js2-string-node-p node)
(let* ((start (js2-node-abs-pos node))
(end (+ start (js2-node-len node))))
(when (memq (char-before start) '(?\[))
(save-excursion
(goto-char (- end 1)) (delete-char 2)
(goto-char (+ start 1)) (delete-char -2) (insert "."))))
(let* ((start (js2-node-abs-pos node))
(end (+ start (js2-node-len node))))
(when (memq (char-before start) '(?.))
(save-excursion
(goto-char end) (insert "\']")
(goto-char start) (delete-char -1) (insert "[\'")))))))))
(defvar jester-monkey-scripts-port "9981"
"port number where monkey scripts are hosted on local http server.")
(defun jester/copy-monkey-script-url ()
"Copy current buffer file's http address."
(interactive)
(message (kill-new (format "http://localhost:%s/%s" jester-monkey-scripts-port (buffer-name)))))
(defun jester/make-default-evil-markers-for-js ()
"Make some evil markers to my habit."
(save-match-data
;; i = "import"
(goto-char (point-min))
(cl-loop with x
while (or (when (looking-at "import")
(progn (setq x (point))
t))
(looking-at "//")
(and (looking-at "$")
(not (looking-at (rx buffer-end)))))
do (beginning-of-line 2)
finally (when (not (null x)) (evil-set-marker ?i x)))
;; m = "method"
;; v = "view"
(goto-char (point-min))
(when (and (search-forward "render() {" nil t)
(search-forward "return (" nil t))
(evil-set-marker ?v))
;; c = "constructor"
(goto-char (point-min))
(when (search-forward "constructor(" nil t)
(evil-set-marker ?c))
;; s = "state"
(goto-char (point-min))
(when (search-forward "this.state =" nil t)
(evil-set-marker ?s))))
(add-hook 'js2-mode-hook 'jester/make-default-evil-markers-for-js t)
(defun jester/set-js-ts-test-command ()
"If file ends with \".test.js\" or \".spec.js\", set `jester-test-command' to \"node node_modules/.bin/jest ...\"."
(let ((file-name (buffer-file-name)))
(when (and file-name
(cl-some (lambda (suffix) (s-suffix-p suffix file-name))
'(".test.js" ".spec.js"
".test.jsx" ".spec.jsx"
".test.ts" ".spec.ts"
".test.tsx" ".spec.tsx")))
(setq jester-test-command (format "(cd %s && node node_modules/.bin/jest --detectOpenHandles --forceExit %s --collectCoverageFrom '')" (projectile-project-root) file-name)))))
(add-hook! '(js2-mode-hook typescript-ts-mode-hook typescript-mode-hook web-mode-hook) 'jester/set-js-ts-test-command)
(defun jester/js2-jump-or-citre-jump ()
"`js2-jump-to-definition' if we can, `citre-jump' if can't or already at import statement."
(interactive)
(if (save-excursion
(beginning-of-line)
(let ((case-fold-search nil)) (search-forward "import " nil t)))
(citre-jump)
(condition-case err
(js2-jump-to-definition)
(error (citre-jump)))))
;; (general-define-key
;; :states '(normal motion)
;; :keymaps '(js2-mode-map)
;; "g d" 'jester/js2-jump-or-citre-jump
;; ;; "g r" 'jester/xref-find-references-at-point
;; "g p" 'xref-pop-marker-stack)
(provide 'init-javascript)