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author Shohei KOKUBO <e105744@ie.u-ryukyu.ac.jp>
date Mon, 21 Apr 2014 04:30:59 +0900
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1 ;;; ghc-core.el --- Syntax highlighting module for GHC Core
2
3 ;; Copyright (C) 2010 Johan Tibell
4
5 ;; Author: Johan Tibell <johan.tibell@gmail.com>
6
7 ;; This file is not part of GNU Emacs.
8
9 ;; This file is free software; you can redistribute it and/or modify
10 ;; it under the terms of the GNU General Public License as published by
11 ;; the Free Software Foundation; either version 3, or (at your option)
12 ;; any later version.
13
14 ;; This file is distributed in the hope that it will be useful,
15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 ;; GNU General Public License for more details.
18
19 ;; You should have received a copy of the GNU General Public License
20 ;; along with GNU Emacs; see the file COPYING. If not, write to
21 ;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
22 ;; Boston, MA 02110-1301, USA.
23
24 ;;; Commentary:
25
26 ;; Purpose:
27 ;;
28 ;; To make it easier to read GHC Core output by providing highlighting
29 ;; and removal of commonly ignored annotations.
30
31 ;;; Code:
32 (require 'haskell-mode)
33 (require 'haskell-font-lock)
34
35 (defgroup ghc-core nil
36 "Major mode for viewing pretty printed GHC Core output."
37 :link '(custom-manual "(haskell-mode)")
38 :group 'haskell
39 :prefix "ghc-core-")
40
41 (defcustom ghc-core-program
42 "ghc"
43 "Name of the GHC executable (excluding any arguments)."
44 :type 'string
45 :group 'ghc-core)
46
47 (defcustom ghc-core-program-args
48 '("-O2")
49 "Additional options to be passed to GHC when generating core output.
50 GHC (see variable `ghc-core-program') is invoked with the basic
51 command line options \"-ddump-simpl -c <source-file>\"
52 followed by the additional options defined here.
53
54 The following `-ddump-simpl` options might be of interest:
55
56 - `-dsuppress-all'
57 - `-dsuppress-uniques'
58 - `-dsuppress-idinfo'
59 - `-dsuppress-module-prefixes'
60 - `-dsuppress-type-signatures'
61 - `-dsuppress-type-applications'
62 - `-dsuppress-coercions'
63
64 See `M-x manual-entry RET ghc' for more details."
65 :type '(repeat (string :tag "Argument"))
66 :group 'ghc-core)
67
68 (define-obsolete-variable-alias 'ghc-core-create-options 'ghc-core-program-args
69 "haskell-mode 13.7")
70
71 (defun ghc-core-clean-region (start end)
72 "Remove commonly ignored annotations and namespace prefixes
73 in the region between START and END."
74 (interactive "r")
75 (save-restriction
76 (narrow-to-region start end)
77 (goto-char (point-min))
78 (while (search-forward-regexp "GHC\.[^\.]*\." nil t)
79 (replace-match "" nil t))
80 (goto-char (point-min))
81 (while (flush-lines "^ *GblId *$" nil))
82 (goto-char (point-min))
83 (while (flush-lines "^ *LclId *$" nil))
84 (goto-char (point-min))
85 (while (flush-lines (concat "^ *\\[\\(?:Arity [0-9]+\\|NoCafRefs\\|"
86 "Str: DmdType\\|Worker \\)"
87 "\\([^]]*\\n?\\).*\\] *$") nil))
88 (goto-char (point-min))
89 (while (search-forward "Main." nil t) (replace-match "" nil t))))
90
91 (defun ghc-core-clean-buffer ()
92 "Remove commonly ignored annotations and namespace prefixes
93 in the current buffer."
94 (interactive)
95 (ghc-core-clean-region (point-min) (point-max)))
96
97 ;;;###autoload
98 (defun ghc-core-create-core ()
99 "Compile and load the current buffer as tidy core."
100 (interactive)
101 (save-buffer)
102 (let* ((core-buffer (generate-new-buffer "ghc-core"))
103 (neh (lambda () (kill-buffer core-buffer))))
104 (add-hook 'next-error-hook neh)
105 (apply #'call-process ghc-core-program nil core-buffer nil
106 "-ddump-simpl" "-c" (buffer-file-name) ghc-core-program-args)
107 (display-buffer core-buffer)
108 (with-current-buffer core-buffer
109 (ghc-core-mode))
110 (remove-hook 'next-error-hook neh)))
111
112 ;;;###autoload
113 (add-to-list 'auto-mode-alist '("\\.hcr\\'" . ghc-core-mode))
114 (add-to-list 'auto-mode-alist '("\\.dump-simpl\\'" . ghc-core-mode))
115
116 ;;;###autoload
117 (define-derived-mode ghc-core-mode haskell-mode "GHC-Core"
118 "Major mode for GHC Core files.")
119
120 (provide 'ghc-core)
121 ;;; ghc-core.el ends here