ghc-mod/elisp/ghc.el
2016-01-04 20:36:27 +01:00

164 lines
5.7 KiB
EmacsLisp

;;; ghc.el --- ghc-mod front-end for haskell-mode
;; Author: Kazu Yamamoto <Kazu@Mew.org>
;; Created: Sep 25, 2009
;; Revised:
;; Put the following code to your "~/.emacs".
;;
;; (autoload 'ghc-init "ghc" nil t)
;; (autoload 'ghc-debug "ghc" nil t)
;; (add-hook 'haskell-mode-hook (lambda () (ghc-init)))
;;
;; Or if you wish to display error each goto next/prev error,
;; set ghc-display-error valiable.
;;
;; (setq ghc-display-error 'minibuffer) ; to minibuffer
;; ; (setq ghc-display-error 'other-buffer) ; to other-buffer
;;
;;; Code:
;; defvar-local was introduced in 24.3
(let* ((major 24)
(minor 3))
(if (or (< emacs-major-version major)
(and (= emacs-major-version major)
(< emacs-minor-version minor)))
(error "ghc-mod requires at least Emacs %d.%d" major minor)))
(defconst ghc-version "5.5.0.0")
(defgroup ghc-mod '() "ghc-mod customization")
;; (eval-when-compile
;; (require 'haskell-mode))
(require 'ghc-comp)
(require 'ghc-doc)
(require 'ghc-info)
(require 'ghc-check)
(require 'ghc-command)
(require 'ghc-ins-mod)
(require 'ghc-indent)
(require 'ghc-rewrite)
(require 'dabbrev)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;
;;; Customize Variables
;;;
(defun ghc-find-C-h ()
(or
(when keyboard-translate-table
(aref keyboard-translate-table ?\C-h))
?\C-h))
(defvar ghc-completion-key "\e\t")
(defvar ghc-document-key "\e\C-d")
(defvar ghc-import-key "\e\C-m")
(defvar ghc-previous-key "\ep")
(defvar ghc-next-key "\en")
(defvar ghc-help-key "\e?")
(defvar ghc-insert-key "\et")
(defvar ghc-sort-key "\es")
(defvar ghc-type-key "\C-c\C-t")
(defvar ghc-info-key "\C-c\C-i")
(defvar ghc-toggle-key "\C-c\C-c")
(defvar ghc-jump-key "\C-c\C-j")
(defvar ghc-module-key "\C-c\C-m")
(defvar ghc-expand-key "\C-c\C-e")
(defvar ghc-kill-key "\C-c\C-k")
(defvar ghc-hoogle-key (format "\C-c%c" (ghc-find-C-h)))
(defvar ghc-shallower-key "\C-c<")
(defvar ghc-deeper-key "\C-c>")
;(defvar ghc-case-split-key "\C-c\C-s")
(defvar ghc-refine-key "\C-c\C-f")
(defvar ghc-auto-key "\C-c\C-a")
(defvar ghc-prev-hole-key "\C-c\ep")
(defvar ghc-next-hole-key "\C-c\en")
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;
;;; Initializer
;;;
(defvar ghc-initialized nil)
;;;###autoload
(defun ghc-init ()
(ghc-abbrev-init)
(ghc-type-init)
(unless ghc-initialized
(define-key haskell-mode-map ghc-completion-key 'ghc-complete)
(define-key haskell-mode-map ghc-document-key 'ghc-browse-document)
(define-key haskell-mode-map ghc-type-key 'ghc-show-type)
(define-key haskell-mode-map ghc-info-key 'ghc-show-info)
(define-key haskell-mode-map ghc-expand-key 'ghc-expand-th)
(define-key haskell-mode-map ghc-import-key 'ghc-import-module)
(define-key haskell-mode-map ghc-previous-key 'ghc-goto-prev-error)
(define-key haskell-mode-map ghc-next-key 'ghc-goto-next-error)
(define-key haskell-mode-map ghc-help-key 'ghc-display-errors)
(define-key haskell-mode-map ghc-insert-key 'ghc-insert-template-or-signature)
(define-key haskell-mode-map ghc-sort-key 'ghc-sort-lines)
(define-key haskell-mode-map ghc-toggle-key 'ghc-toggle-check-command)
(define-key haskell-mode-map ghc-jump-key 'ghc-jump-file)
(define-key haskell-mode-map ghc-module-key 'ghc-insert-module)
(define-key haskell-mode-map ghc-kill-key 'ghc-kill-process)
(define-key haskell-mode-map ghc-hoogle-key 'haskell-hoogle)
(define-key haskell-mode-map ghc-shallower-key 'ghc-make-indent-shallower)
(define-key haskell-mode-map ghc-deeper-key 'ghc-make-indent-deeper)
;(define-key haskell-mode-map ghc-case-split-key 'ghc-case-split)
(define-key haskell-mode-map ghc-refine-key 'ghc-refine)
(define-key haskell-mode-map ghc-auto-key 'ghc-auto)
(define-key haskell-mode-map ghc-prev-hole-key 'ghc-goto-prev-hole)
(define-key haskell-mode-map ghc-next-hole-key 'ghc-goto-next-hole)
(ghc-comp-init)
(setq ghc-initialized t)
(add-hook 'kill-buffer-hook 'ghc-kill-process)
(defadvice save-buffer (after ghc-check-syntax-on-save activate)
"Check syntax with GHC when a haskell-mode buffer is saved."
(when (eq 'haskell-mode major-mode) (ghc-check-syntax))))
(ghc-import-module)
(ghc-check-syntax))
(defun ghc-abbrev-init ()
(set (make-local-variable 'dabbrev-case-fold-search) nil))
;;;###autoload
(defun ghc-debug ()
(interactive)
(let ((el-path (locate-file "ghc.el" load-path))
(ghc-path (executable-find "ghc")) ;; FIXME
(ghc-mod-path (executable-find ghc-module-command))
(el-ver ghc-version)
(ghc-ver (ghc-run-ghc-mod '("--version") "ghc"))
(ghc-mod-ver (ghc-run-ghc-mod '("version")))
(path (getenv "PATH"))
(debug (ghc-run-ghc-mod '("debug")))) ;; before switching buffers.
(switch-to-buffer (get-buffer-create "**GHC Debug**"))
(erase-buffer)
(insert "Path: check if you are using intended programs.\n")
(insert (format "\t ghc.el path: %s\n" el-path))
(insert (format "\t ghc-mod path: %s\n" ghc-mod-path))
(insert (format "\t ghc path: %s\n" ghc-path))
(insert "\nVersion: all GHC versions must be the same.\n")
(insert (format "\t ghc.el version %s\n" el-ver))
(insert (format "\t %s\n" ghc-mod-ver))
(insert (format "\t%s\n" ghc-ver))
(insert "\nEnvironment variables:\n")
(insert (format "\tPATH=%s\n" path))
(insert "\nThe result of \"ghc-mod debug\":\n")
(insert debug)
(goto-char (point-min))))
(defun ghc-insert-template-or-signature (&optional flag)
(interactive "P")
(if flag
(ghc-initial-code-from-signature)
(ghc-insert-template)))
(provide 'ghc)