143 lines
4.4 KiB
EmacsLisp
143 lines
4.4 KiB
EmacsLisp
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
;;;
|
|
;;; ghc-flymake.el
|
|
;;;
|
|
|
|
;; Author: Kazu Yamamoto <Kazu@Mew.org>
|
|
;; Created: Mar 12, 2010
|
|
|
|
;;; Code:
|
|
|
|
(require 'flymake)
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
(defvar ghc-hlint-options nil "*Hlint options")
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
(defconst ghc-error-buffer-name "*GHC Errors*")
|
|
|
|
(defconst ghc-flymake-allowed-file-name-masks
|
|
'("\\.l?hs$" ghc-flymake-init flymake-simple-cleanup flymake-get-real-file-name))
|
|
|
|
(defconst ghc-flymake-err-line-patterns
|
|
'("^\\(.*\\.l?hs\\):\\([0-9]+\\):\\([0-9]+\\):[ ]*\\(.+\\)" 1 2 3 4))
|
|
|
|
(add-to-list 'flymake-allowed-file-name-masks
|
|
ghc-flymake-allowed-file-name-masks)
|
|
|
|
(add-to-list 'flymake-err-line-patterns
|
|
ghc-flymake-err-line-patterns)
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
(defun ghc-flymake-init ()
|
|
(let ((after-save-hook nil))
|
|
(save-buffer))
|
|
(let ((file (file-name-nondirectory (buffer-file-name))))
|
|
(list ghc-module-command (ghc-flymake-command file ghc-hlint-options))))
|
|
|
|
(defvar ghc-flymake-command nil) ;; nil: check, t: lint
|
|
|
|
(defun ghc-flymake-command (file opts)
|
|
(if ghc-flymake-command
|
|
(let ((hopts (ghc-mapconcat (lambda (x) (list "-h" x)) opts)))
|
|
`(,@hopts "lint" ,file))
|
|
(list "check" file)))
|
|
|
|
(defun ghc-flymake-toggle-command ()
|
|
(interactive)
|
|
(setq ghc-flymake-command (not ghc-flymake-command))
|
|
(if ghc-flymake-command
|
|
(message "Syntax check with hlint")
|
|
(message "Syntax check with GHC")))
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
(defun ghc-flymake-display-errors ()
|
|
(interactive)
|
|
(if (not (ghc-flymake-have-errs-p))
|
|
(message "No errors or warnings")
|
|
(let ((buf (get-buffer-create ghc-error-buffer-name))
|
|
(title (ghc-flymake-err-title))
|
|
(errs (ghc-flymake-err-list)))
|
|
(with-current-buffer buf
|
|
(erase-buffer)
|
|
(ghc-flymake-insert-errors title errs))
|
|
(display-buffer buf))))
|
|
|
|
(defun ghc-flymake-insert-errors (title errs)
|
|
(save-excursion
|
|
(insert title "\n\n")
|
|
(mapc (lambda (x) (insert (ghc-replace-character x ghc-null ghc-newline) "\n")) errs)))
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
(defun ghc-extract-type (str)
|
|
(with-temp-buffer
|
|
(insert str)
|
|
(goto-char (point-min))
|
|
(when (re-search-forward "Inferred type: " nil t)
|
|
(delete-region (point-min) (point)))
|
|
(when (re-search-forward "forall [^.]+\\. " nil t)
|
|
(replace-match ""))
|
|
(while (re-search-forward "\0 +" nil t)
|
|
(replace-match " "))
|
|
(goto-char (point-min))
|
|
(while (re-search-forward "\\[Char\\]" nil t)
|
|
(replace-match "String"))
|
|
(re-search-forward "\0" nil t)
|
|
(buffer-substring-no-properties (point-min) (1- (point)))))
|
|
|
|
(defun ghc-flymake-insert-from-warning ()
|
|
(interactive)
|
|
(dolist (data (ghc-flymake-err-list))
|
|
(save-excursion
|
|
(cond
|
|
((string-match "Inferred type: " data)
|
|
(beginning-of-line)
|
|
(insert (ghc-extract-type data) "\n"))
|
|
((string-match "lacks an accompanying binding" data)
|
|
(beginning-of-line)
|
|
(when (looking-at "^\\([^ ]+\\) *::")
|
|
(save-match-data
|
|
(forward-line)
|
|
(if (eobp) (insert "\n")))
|
|
(insert (match-string 1) " = undefined\n")))
|
|
((string-match "Not in scope: `\\([^']+\\)'" data)
|
|
(save-match-data
|
|
(unless (re-search-forward "^$" nil t)
|
|
(goto-char (point-max))
|
|
(insert "\n")))
|
|
(insert "\n" (match-string 1 data) " = undefined\n"))
|
|
((string-match "Found:\0[ ]*\\([^\0]+\\)\0Why not:\0[ ]*\\([^\0]+\\)" data)
|
|
(let ((old (match-string 1 data))
|
|
(new (match-string 2 data)))
|
|
(beginning-of-line)
|
|
(when (search-forward old nil t)
|
|
(let ((end (point)))
|
|
(search-backward old nil t)
|
|
(delete-region (point) end))
|
|
(insert new))))))))
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
(defun ghc-flymake-err-get-title (x) (nth 0 x))
|
|
(defun ghc-flymake-err-get-errs (x) (nth 1 x))
|
|
|
|
(defalias 'ghc-flymake-have-errs-p 'ghc-flymake-data)
|
|
|
|
(defun ghc-flymake-data ()
|
|
(let* ((line-no (flymake-current-line-no))
|
|
(info (nth 0 (flymake-find-err-info flymake-err-info line-no))))
|
|
(flymake-make-err-menu-data line-no info)))
|
|
|
|
(defun ghc-flymake-err-title ()
|
|
(ghc-flymake-err-get-title (ghc-flymake-data)))
|
|
|
|
(defun ghc-flymake-err-list ()
|
|
(mapcar 'car (ghc-flymake-err-get-errs (ghc-flymake-data))))
|
|
|
|
(provide 'ghc-flymake)
|