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Diffstat (limited to 'configs/shared/emacs/.emacs.d/elpa/haskell-mode-20180601.143/haskell.el')
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diff --git a/configs/shared/emacs/.emacs.d/elpa/haskell-mode-20180601.143/haskell.el b/configs/shared/emacs/.emacs.d/elpa/haskell-mode-20180601.143/haskell.el new file mode 100644 index 000000000000..641fea35676c --- /dev/null +++ b/configs/shared/emacs/.emacs.d/elpa/haskell-mode-20180601.143/haskell.el @@ -0,0 +1,528 @@ +;;; haskell.el --- Top-level Haskell package -*- lexical-binding: t -*- + +;; Copyright © 2014 Chris Done. All rights reserved. +;; 2016 Arthur Fayzrakhmanov + +;; This file is free software; you can redistribute it and/or modify +;; it under the terms of the GNU General Public License as published by +;; the Free Software Foundation; either version 3, or (at your option) +;; any later version. + +;; This file is distributed in the hope that it will be useful, +;; but WITHOUT ANY WARRANTY; without even the implied warranty of +;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;; GNU General Public License for more details. + +;; You should have received a copy of the GNU General Public License +;; along with this program. If not, see <http://www.gnu.org/licenses/>. + +;;; Commentary: + +;;; Code: + +(require 'cl-lib) +(require 'haskell-mode) +(require 'haskell-hoogle) +(require 'haskell-process) +(require 'haskell-debug) +(require 'haskell-interactive-mode) +(require 'haskell-repl) +(require 'haskell-load) +(require 'haskell-commands) +(require 'haskell-modules) +(require 'haskell-string) +(require 'haskell-completions) +(require 'haskell-utils) +(require 'haskell-customize) + +(defvar interactive-haskell-mode-map + (let ((map (make-sparse-keymap))) + (define-key map (kbd "C-c C-l") 'haskell-process-load-file) + (define-key map (kbd "C-c C-r") 'haskell-process-reload) + (define-key map (kbd "C-c C-t") 'haskell-process-do-type) + (define-key map (kbd "C-c C-i") 'haskell-process-do-info) + (define-key map (kbd "M-.") 'haskell-mode-jump-to-def-or-tag) + (define-key map (kbd "C-c C-k") 'haskell-interactive-mode-clear) + (define-key map (kbd "C-c C-c") 'haskell-process-cabal-build) + (define-key map (kbd "C-c C-v") 'haskell-cabal-visit-file) + (define-key map (kbd "C-c C-x") 'haskell-process-cabal) + (define-key map (kbd "C-c C-b") 'haskell-interactive-switch) + (define-key map (kbd "C-c C-z") 'haskell-interactive-switch) + map) + "Keymap for using `interactive-haskell-mode'.") + +;;;###autoload +(define-minor-mode interactive-haskell-mode + "Minor mode for enabling haskell-process interaction." + :lighter " Interactive" + :keymap interactive-haskell-mode-map + (add-hook 'completion-at-point-functions + #'haskell-completions-sync-repl-completion-at-point + nil + t)) + +(make-obsolete 'haskell-process-completions-at-point + 'haskell-completions-sync-repl-completion-at-point + "June 19, 2015") + +(defun haskell-process-completions-at-point () + "A `completion-at-point' function using the current haskell process." + (when (haskell-session-maybe) + (let ((process (haskell-process)) + symbol-bounds) + (cond + ;; ghci can complete module names, but it needs the "import " + ;; string at the beginning + ((looking-back (rx line-start + "import" (1+ space) + (? "qualified" (1+ space)) + (group (? (char upper) ; modid + (* (char alnum ?' ?.))))) + (line-beginning-position)) + (let ((text (match-string-no-properties 0)) + (start (match-beginning 1)) + (end (match-end 1))) + (list start end + (haskell-process-get-repl-completions process text)))) + ;; Complete OPTIONS, a completion list comes from variable + ;; `haskell-ghc-supported-options' + ((and (nth 4 (syntax-ppss)) + (save-excursion + (let ((p (point))) + (and (search-backward "{-#" nil t) + (search-forward-regexp "\\_<OPTIONS\\(?:_GHC\\)?\\_>" p t)))) + (looking-back + (rx symbol-start "-" (* (char alnum ?-))) + (line-beginning-position))) + (list (match-beginning 0) (match-end 0) haskell-ghc-supported-options)) + ;; Complete LANGUAGE, a list of completions comes from variable + ;; `haskell-ghc-supported-extensions' + ((and (nth 4 (syntax-ppss)) + (save-excursion + (let ((p (point))) + (and (search-backward "{-#" nil t) + (search-forward-regexp "\\_<LANGUAGE\\_>" p t)))) + (setq symbol-bounds (bounds-of-thing-at-point 'symbol))) + (list (car symbol-bounds) (cdr symbol-bounds) + haskell-ghc-supported-extensions)) + ((setq symbol-bounds (haskell-ident-pos-at-point)) + (cl-destructuring-bind (start . end) symbol-bounds + (list start end + (haskell-process-get-repl-completions + process (buffer-substring-no-properties start end))))))))) + +;;;###autoload +(defun haskell-interactive-mode-return () + "Handle the return key." + (interactive) + (cond + ;; At a compile message, jump to the location of the error in the + ;; source. + ((haskell-interactive-at-compile-message) + (next-error-internal)) + ;; At the input prompt, handle the expression in the usual way. + ((haskell-interactive-at-prompt) + (haskell-interactive-handle-expr)) + ;; At any other location in the buffer, copy the line to the + ;; current prompt. + (t + (haskell-interactive-copy-to-prompt)))) + +;;;###autoload +(defun haskell-session-kill (&optional leave-interactive-buffer) + "Kill the session process and buffer, delete the session. +0. Prompt to kill all associated buffers. +1. Kill the process. +2. Kill the interactive buffer unless LEAVE-INTERACTIVE-BUFFER is not given. +3. Walk through all the related buffers and set their haskell-session to nil. +4. Remove the session from the sessions list." + (interactive) + (haskell-mode-toggle-interactive-prompt-state) + (unwind-protect + (let* ((session (haskell-session)) + (name (haskell-session-name session)) + (also-kill-buffers + (and haskell-ask-also-kill-buffers + (y-or-n-p + (format "Killing `%s'. Also kill all associated buffers?" + name))))) + (haskell-kill-session-process session) + (unless leave-interactive-buffer + (kill-buffer (haskell-session-interactive-buffer session))) + (cl-loop for buffer in (buffer-list) + do (with-current-buffer buffer + (when (and (boundp 'haskell-session) + (string= (haskell-session-name haskell-session) + name)) + (setq haskell-session nil) + (when also-kill-buffers + (kill-buffer))))) + (setq haskell-sessions + (cl-remove-if (lambda (session) + (string= (haskell-session-name session) + name)) + haskell-sessions))) + (haskell-mode-toggle-interactive-prompt-state t))) + +;;;###autoload +(defun haskell-interactive-kill () + "Kill the buffer and (maybe) the session." + (interactive) + (when (eq major-mode 'haskell-interactive-mode) + (haskell-mode-toggle-interactive-prompt-state) + (unwind-protect + (when (and (boundp 'haskell-session) + haskell-session + (y-or-n-p "Kill the whole session?")) + (haskell-session-kill t))) + (haskell-mode-toggle-interactive-prompt-state t))) + +(defun haskell-session-make (name) + "Make a Haskell session." + (when (haskell-session-lookup name) + (error "Session of name %s already exists!" name)) + (let ((session (setq haskell-session + (list (cons 'name name))))) + (add-to-list 'haskell-sessions session) + (haskell-process-start session) + session)) + +(defun haskell-session-new-assume-from-cabal () + "Prompt to create a new project based on a guess from the nearest Cabal file. +If `haskell-process-load-or-reload-prompt' is nil, accept `default'." + (let ((name (haskell-session-default-name))) + (unless (haskell-session-lookup name) + (haskell-mode-toggle-interactive-prompt-state) + (unwind-protect + (if (or (not haskell-process-load-or-reload-prompt) + (y-or-n-p (format "Start a new project named “%s”? " name))) + (haskell-session-make name)) + (haskell-mode-toggle-interactive-prompt-state t))))) + +;;;###autoload +(defun haskell-session () + "Get the Haskell session, prompt if there isn't one or fail." + (or (haskell-session-maybe) + (haskell-session-assign + (or (haskell-session-from-buffer) + (haskell-session-new-assume-from-cabal) + (haskell-session-choose) + (haskell-session-new))))) + +;;;###autoload +(defun haskell-interactive-switch () + "Switch to the interactive mode for this session." + (interactive) + (let ((initial-buffer (current-buffer)) + (buffer (haskell-session-interactive-buffer (haskell-session)))) + (with-current-buffer buffer + (setq haskell-interactive-previous-buffer initial-buffer)) + (unless (eq buffer (window-buffer)) + (switch-to-buffer-other-window buffer)))) + +(defun haskell-session-new () + "Make a new session." + (let ((name (read-from-minibuffer "Project name: " (haskell-session-default-name)))) + (when (not (string= name "")) + (let ((session (haskell-session-lookup name))) + (haskell-mode-toggle-interactive-prompt-state) + (unwind-protect + (if session + (when + (y-or-n-p + (format "Session %s already exists. Use it?" name)) + session) + (haskell-session-make name))) + (haskell-mode-toggle-interactive-prompt-state t))))) + +;;;###autoload +(defun haskell-session-change () + "Change the session for the current buffer." + (interactive) + (haskell-session-assign (or (haskell-session-new-assume-from-cabal) + (haskell-session-choose) + (haskell-session-new)))) + +(defun haskell-process-prompt-restart (process) + "Prompt to restart the died PROCESS." + (let ((process-name (haskell-process-name process)) + (cursor-in-echo-area t)) + (if haskell-process-suggest-restart + (progn + (haskell-mode-toggle-interactive-prompt-state) + (unwind-protect + (cond + ((string-match "You need to re-run the 'configure' command." + (haskell-process-response process)) + (cl-case (read-char-choice + (concat + "The Haskell process ended. Cabal wants you to run " + (propertize "cabal configure" + 'face + 'font-lock-keyword-face) + " because there is a version mismatch. Re-configure (y, n, l: view log)?" + "\n\n" + "Cabal said:\n\n" + (propertize (haskell-process-response process) + 'face + 'font-lock-comment-face)) + '(?l ?n ?y)) + (?y (let ((default-directory + (haskell-session-cabal-dir + (haskell-process-session process)))) + (message "%s" + (shell-command-to-string "cabal configure")))) + (?l (let* ((response (haskell-process-response process)) + (buffer (get-buffer "*haskell-process-log*"))) + (if buffer + (switch-to-buffer buffer) + (progn (switch-to-buffer + (get-buffer-create "*haskell-process-log*")) + (insert response))))) + (?n))) + (t + (cl-case (read-char-choice + (propertize + (format "The Haskell process `%s' has died. Restart? (y, n, l: show process log) " + process-name) + 'face + 'minibuffer-prompt) + '(?l ?n ?y)) + (?y (haskell-process-start (haskell-process-session process))) + (?l (let* ((response (haskell-process-response process)) + (buffer (get-buffer "*haskell-process-log*"))) + (if buffer + (switch-to-buffer buffer) + (progn (switch-to-buffer + (get-buffer-create "*haskell-process-log*")) + (insert response))))) + (?n)))) + ;; unwind + (haskell-mode-toggle-interactive-prompt-state t))) + (message "The Haskell process `%s' is dearly departed." process-name)))) + +(defun haskell-process () + "Get the current process from the current session." + (haskell-session-process (haskell-session))) + +;;;###autoload +(defun haskell-kill-session-process (&optional session) + "Kill the process." + (interactive) + (let* ((session (or session (haskell-session))) + (existing-process (get-process (haskell-session-name session)))) + (when (processp existing-process) + (haskell-interactive-mode-echo session "Killing process ...") + (haskell-process-set (haskell-session-process session) 'is-restarting t) + (delete-process existing-process)))) + +;;;###autoload +(defun haskell-interactive-mode-visit-error () + "Visit the buffer of the current (or last) error message." + (interactive) + (with-current-buffer (haskell-session-interactive-buffer (haskell-session)) + (if (progn (goto-char (line-beginning-position)) + (looking-at haskell-interactive-mode-error-regexp)) + (progn (forward-line -1) + (haskell-interactive-jump-to-error-line)) + (progn (goto-char (point-max)) + (haskell-interactive-mode-error-backward) + (haskell-interactive-jump-to-error-line))))) + +(defvar xref-prompt-for-identifier nil) + +;;;###autoload +(defun haskell-mode-jump-to-tag (&optional next-p) + "Jump to the tag of the given identifier. + +Give optional NEXT-P parameter to override value of +`xref-prompt-for-identifier' during definition search." + (interactive "P") + (let ((ident (haskell-string-drop-qualifier (haskell-ident-at-point))) + (tags-file-dir (haskell-cabal--find-tags-dir)) + (tags-revert-without-query t)) + (when (and ident + (not (string= "" (haskell-string-trim ident))) + tags-file-dir) + (let ((tags-file-name (concat tags-file-dir "TAGS"))) + (cond ((file-exists-p tags-file-name) + (let ((xref-prompt-for-identifier next-p)) + (xref-find-definitions ident))) + (t (haskell-mode-generate-tags ident))))))) + +;;;###autoload +(defun haskell-mode-after-save-handler () + "Function that will be called after buffer's saving." + (when haskell-tags-on-save + (ignore-errors (haskell-mode-generate-tags)))) + +;;;###autoload +(defun haskell-mode-tag-find (&optional _next-p) + "The tag find function, specific for the particular session." + (interactive "P") + (cond + ((elt (syntax-ppss) 3) ;; Inside a string + (haskell-mode-jump-to-filename-in-string)) + (t (call-interactively 'haskell-mode-jump-to-tag)))) + +(defun haskell-mode-jump-to-filename-in-string () + "Jump to the filename in the current string." + (let* ((string (save-excursion + (buffer-substring-no-properties + (1+ (search-backward-regexp "\"" (line-beginning-position) nil 1)) + (1- (progn (forward-char 1) + (search-forward-regexp "\"" (line-end-position) nil 1)))))) + (fp (expand-file-name string + (haskell-session-cabal-dir (haskell-session))))) + (find-file + (read-file-name + "" + fp + fp)))) + +;;;###autoload +(defun haskell-interactive-bring () + "Bring up the interactive mode for this session." + (interactive) + (let* ((session (haskell-session)) + (buffer (haskell-session-interactive-buffer session))) + (pop-to-buffer buffer))) + +;;;###autoload +(defun haskell-process-load-file () + "Load the current buffer file." + (interactive) + (save-buffer) + (haskell-interactive-mode-reset-error (haskell-session)) + (haskell-process-file-loadish (format "load \"%s\"" (replace-regexp-in-string + "\"" + "\\\\\"" + (buffer-file-name))) + nil + (current-buffer))) + +;;;###autoload +(defun haskell-process-reload () + "Re-load the current buffer file." + (interactive) + (save-buffer) + (haskell-interactive-mode-reset-error (haskell-session)) + (haskell-process-file-loadish "reload" t (current-buffer))) + +;;;###autoload +(defun haskell-process-reload-file () (haskell-process-reload)) + +(make-obsolete 'haskell-process-reload-file 'haskell-process-reload + "2015-11-14") + +;;;###autoload +(defun haskell-process-load-or-reload (&optional toggle) + "Load or reload. Universal argument toggles which." + (interactive "P") + (if toggle + (progn (setq haskell-reload-p (not haskell-reload-p)) + (message "%s (No action taken this time)" + (if haskell-reload-p + "Now running :reload." + "Now running :load <buffer-filename>."))) + (if haskell-reload-p (haskell-process-reload) (haskell-process-load-file)))) + +(make-obsolete 'haskell-process-load-or-reload 'haskell-process-load-file + "2015-11-14") + +;;;###autoload +(defun haskell-process-cabal-build () + "Build the Cabal project." + (interactive) + (haskell-process-do-cabal "build") + (haskell-process-add-cabal-autogen)) + +;;;###autoload +(defun haskell-process-cabal (p) + "Prompts for a Cabal command to run." + (interactive "P") + (if p + (haskell-process-do-cabal + (read-from-minibuffer "Cabal command (e.g. install): ")) + (haskell-process-do-cabal + (funcall haskell-completing-read-function "Cabal command: " + (append haskell-cabal-commands + (list "build --ghc-options=-fforce-recomp")))))) + +(defun haskell-process-file-loadish (command reload-p module-buffer) + "Run a loading-ish COMMAND that wants to pick up type errors\ +and things like that. RELOAD-P indicates whether the notification +should say 'reloaded' or 'loaded'. MODULE-BUFFER may be used +for various things, but is optional." + (let ((session (haskell-session))) + (haskell-session-current-dir session) + (when haskell-process-check-cabal-config-on-load + (haskell-process-look-config-changes session)) + (let ((process (haskell-process))) + (haskell-process-queue-command + process + (make-haskell-command + :state (list session process command reload-p module-buffer) + :go (lambda (state) + (haskell-process-send-string + (cadr state) (format ":%s" (cl-caddr state)))) + :live (lambda (state buffer) + (haskell-process-live-build + (cadr state) buffer nil)) + :complete (lambda (state response) + (haskell-process-load-complete + (car state) + (cadr state) + response + (cl-cadddr state) + (cl-cadddr (cdr state))))))))) + +;;;###autoload +(defun haskell-process-minimal-imports () + "Dump minimal imports." + (interactive) + (unless (> (save-excursion + (goto-char (point-min)) + (haskell-navigate-imports-go) + (point)) + (point)) + (goto-char (point-min)) + (haskell-navigate-imports-go)) + (haskell-process-queue-sync-request (haskell-process) + ":set -ddump-minimal-imports") + (haskell-process-load-file) + (insert-file-contents-literally + (concat (haskell-session-current-dir (haskell-session)) + "/" + (haskell-guess-module-name-from-file-name (buffer-file-name)) + ".imports"))) + +(defun haskell-interactive-jump-to-error-line () + "Jump to the error line." + (let ((orig-line (buffer-substring-no-properties (line-beginning-position) + (line-end-position)))) + (and (string-match "^\\([^:]+\\):\\([0-9]+\\):\\([0-9]+\\)\\(-[0-9]+\\)?:" orig-line) + (let* ((file (match-string 1 orig-line)) + (line (match-string 2 orig-line)) + (col (match-string 3 orig-line)) + (session (haskell-interactive-session)) + (cabal-path (haskell-session-cabal-dir session)) + (src-path (haskell-session-current-dir session)) + (cabal-relative-file (expand-file-name file cabal-path)) + (src-relative-file (expand-file-name file src-path))) + (let ((file (cond ((file-exists-p cabal-relative-file) + cabal-relative-file) + ((file-exists-p src-relative-file) + src-relative-file)))) + (when file + (other-window 1) + (find-file file) + (haskell-interactive-bring) + (goto-char (point-min)) + (forward-line (1- (string-to-number line))) + (goto-char (+ (point) (string-to-number col) -1)) + (haskell-mode-message-line orig-line) + t)))))) + +(provide 'haskell) +;;; haskell.el ends here |