doomemacs/core/core-syntax-checking.el

;;; core-syntax-checking.el --- tasing you for every forgotten semicolon

(package! flycheck
  :commands (flycheck-mode flycheck-list-errors flycheck-buffer)
  :init
  (setq flycheck-indication-mode 'right-fringe
        ;; Removed checks on idle/change for snappiness
        flycheck-check-syntax-automatically '(save mode-enabled)
        flycheck-highlighting-mode 'symbols
        flycheck-disabled-checkers '(emacs-lisp emacs-lisp-checkdoc make)
        ;; `flycheck-pos-tip'
        flycheck-pos-tip-timeout 10
        flycheck-display-errors-delay 0.5)

  :config
  ;; (def-popup! " ?\\*Flycheck.+\\*" :align below :size 14 :noselect t :regexp t)

  (map! :map flycheck-error-list-mode-map
        :n "C-n" 'flycheck-error-list-next-error
        :n "C-p" 'flycheck-error-list-previous-error
        :n "j"   'flycheck-error-list-next-error
        :n "k"   'flycheck-error-list-previous-error
        :n "RET" 'flycheck-error-list-goto-error)

  ;; Flycheck buffer on ESC in normal mode.
  (defun doom*flycheck-buffer ()
    (when (bound-and-true-p flycheck-mode) (flycheck-buffer)))
  (advice-add 'evil-force-normal-state :after 'doom*flycheck-buffer)

  (define-fringe-bitmap 'flycheck-fringe-bitmap-double-arrow
    [0 0 0 0 0 4 12 28 60 124 252 124 60 28 12 4 0 0 0 0]))

;; NOTE Looks bad on emacs-mac build on MacOS
(package! flycheck-pos-tip
  :unless (eq window-system 'ns)
  :after flycheck
  :config (flycheck-pos-tip-mode +1))

(package! flyspell :commands flyspell-mode)

(provide 'core-syntax-checking)
;;; core-syntax-checking.el ends here