about summary refs log tree commit diff
path: root/configs/shared/emacs/.emacs.d/elpa/haskell-mode-20180601.143/haskell-modules.el
diff options
context:
space:
mode:
Diffstat (limited to 'configs/shared/emacs/.emacs.d/elpa/haskell-mode-20180601.143/haskell-modules.el')
-rw-r--r--configs/shared/emacs/.emacs.d/elpa/haskell-mode-20180601.143/haskell-modules.el117
1 files changed, 117 insertions, 0 deletions
diff --git a/configs/shared/emacs/.emacs.d/elpa/haskell-mode-20180601.143/haskell-modules.el b/configs/shared/emacs/.emacs.d/elpa/haskell-mode-20180601.143/haskell-modules.el
new file mode 100644
index 000000000000..cb4e841d67e0
--- /dev/null
+++ b/configs/shared/emacs/.emacs.d/elpa/haskell-mode-20180601.143/haskell-modules.el
@@ -0,0 +1,117 @@
+;;; haskell-modules.el --- -*- lexical-binding: t -*-
+
+;; Copyright (c) 2014 Chris Done. All rights reserved.
+
+;; 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/>.
+
+;;; Code:
+
+(require 'haskell-sort-imports)
+(require 'haskell-align-imports)
+(require 'haskell-session)
+(require 'haskell-navigate-imports)
+(require 'haskell-complete-module)
+(require 'haskell-sandbox)
+(require 'haskell-customize)
+
+(defun haskell-add-import (&optional module)
+  "Add an import to the import list.  Sorts and aligns imports,
+unless `haskell-stylish-on-save' is set, in which case we defer
+to stylish-haskell."
+  (interactive)
+  (save-excursion
+    (goto-char (point-max))
+    (haskell-navigate-imports)
+    (insert (haskell-import-for-module
+             (or module
+                 (haskell-complete-module-read
+                  "Module: "
+                  (haskell-session-all-modules (haskell-modules-session))))))
+    (unless haskell-stylish-on-save (haskell-sort-imports)
+            (haskell-align-imports))))
+
+(defun haskell-import-for-module (module)
+  "Get import statements for the given module."
+  (let ((mapping (assoc module haskell-import-mapping)))
+    (if mapping
+        (cdr mapping)
+      (concat (read-from-minibuffer "Import line: "
+                                    (format "import %s" module))
+              "\n"))))
+
+;;;###autoload
+(defun haskell-session-installed-modules (_session &optional _dontcreate)
+  "Get the modules installed in the current package set."
+  ;; TODO: Again, this makes HEAVY use of unix utilities. It'll work
+  ;; fine in Linux, probably okay on OS X, and probably not at all on
+  ;; Windows. Again, if someone wants to test on Windows and come up
+  ;; with alternatives that's OK.
+  ;;
+  ;; Ideally all these package queries can be provided by a Haskell
+  ;; program based on the Cabal API. Possibly as a nice service. Such
+  ;; a service could cache and do nice things like that. For now, this
+  ;; simple shell script takes us far.
+  ;;
+  ;; Probably also we can take the code from inferior-haskell-mode.
+  ;;
+  ;; Ugliness aside, if it saves us time to type it's a winner.
+  ;;
+  ;; FIXME/TODO: add support for (eq 'cabal-repl (haskell-process-type))
+  (let ((session (haskell-session-maybe)))
+    (when session
+      (let ((modules (shell-command-to-string
+                      (format "%s 2> /dev/null | %s | %s"
+                              (cond
+                               ((haskell-sandbox-exists-p session)
+                                (concat "ghc-pkg dump -f "
+                                        (shell-quote-argument (haskell-sandbox-pkgdb session))))
+                               (t "ghc-pkg dump"))
+                              "egrep '^(exposed-modules: |                 )[A-Z]'"
+                              "cut -c18-"))))
+        (split-string modules)))))
+
+;;;###autoload
+(defun haskell-session-all-modules (session &optional dontcreate)
+  "Get all modules -- installed or in the current project.
+If DONTCREATE is non-nil don't create a new session."
+  (append (haskell-session-installed-modules session dontcreate)
+          (haskell-session-project-modules session dontcreate)))
+
+;;;###autoload
+(defun haskell-session-project-modules (session &optional dontcreate)
+  "Get the modules of the current project.
+If DONTCREATE is non-nil don't create a new session."
+  (if (or (not dontcreate) (haskell-session-maybe))
+      (let* ((modules
+              (shell-command-to-string
+               (format "%s && %s"
+                       (format "cd %s" (haskell-session-cabal-dir session))
+                       ;; TODO: Use a different, better source. Possibly hasktags or some such.
+                       ;; TODO: At least make it cross-platform. Linux
+                       ;; (and possibly OS X) have egrep, Windows
+                       ;; doesn't -- or does it via Cygwin or MinGW?
+                       ;; This also doesn't handle module\nName. But those gits can just cut it out!
+                       "egrep '^module[\t\r ]+[^(\t\r ]+' . -r -I --include='*.*hs' --include='*.hsc' -s -o -h | sed 's/^module[\t\r ]*//' | sort | uniq"))))
+        (split-string modules))))
+
+(defun haskell-modules-session ()
+  "Get the `haskell-session', throw an error if it's not
+  available."
+  (or (haskell-session-maybe)
+      (haskell-session-assign
+       (or (haskell-session-from-buffer)
+           (haskell-session-choose)
+           (error "No session associated with this buffer. Try M-x haskell-session-change or report this as a bug.")))))
+
+(provide 'haskell-modules)