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123 lines
4.0 KiB
123 lines
4.0 KiB
;;; ghc-core.el --- Syntax highlighting module for GHC Core -*- lexical-binding: t -*-
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;; Copyright (C) 2010 Johan Tibell
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;; Author: Johan Tibell <johan.tibell@gmail.com>
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;; This file is not part of GNU Emacs.
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;; This file is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 3, or (at your option)
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;; any later version.
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;; This file is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to
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;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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;; Boston, MA 02110-1301, USA.
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;;; Commentary:
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;; Purpose:
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;;
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;; To make it easier to read GHC Core output by providing highlighting
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;; and removal of commonly ignored annotations.
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;;; Code:
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(require 'haskell-mode)
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(require 'haskell-font-lock)
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;;;###autoload
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(defgroup ghc-core nil
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"Major mode for viewing pretty printed GHC Core output."
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:link '(custom-manual "(haskell-mode)")
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:group 'haskell
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:prefix "ghc-core-")
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(defcustom ghc-core-program
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"ghc"
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"Name of the GHC executable (excluding any arguments)."
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:type 'string
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:group 'ghc-core)
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(define-obsolete-variable-alias 'ghc-core-create-options 'ghc-core-program-args
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"haskell-mode 13.7")
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(defcustom ghc-core-program-args
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'("-O2")
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"Additional options to be passed to GHC when generating core output.
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GHC (see variable `ghc-core-program') is invoked with the basic
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command line options \"-ddump-simpl -c <source-file>\"
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followed by the additional options defined here.
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The following `-ddump-simpl` options might be of interest:
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- `-dsuppress-all'
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- `-dsuppress-uniques'
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- `-dsuppress-idinfo'
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- `-dsuppress-module-prefixes'
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- `-dsuppress-type-signatures'
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- `-dsuppress-type-applications'
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- `-dsuppress-coercions'
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See `M-x manual-entry RET ghc' for more details."
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:type '(repeat (string :tag "Argument"))
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:group 'ghc-core)
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(defun ghc-core-clean-region (start end)
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"Remove commonly ignored annotations and namespace prefixes
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in the region between START and END."
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(interactive "r")
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(save-restriction
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(narrow-to-region start end)
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(goto-char (point-min))
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(while (search-forward-regexp "GHC\.[^\.]*\." nil t)
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(replace-match "" nil t))
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(goto-char (point-min))
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(while (flush-lines "^ *GblId *$" nil))
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(goto-char (point-min))
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(while (flush-lines "^ *LclId *$" nil))
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(goto-char (point-min))
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(while (flush-lines (concat "^ *\\[\\(?:Arity [0-9]+\\|NoCafRefs\\|"
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"Str: DmdType\\|Worker \\)"
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"\\([^]]*\\n?\\).*\\] *$") nil))
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(goto-char (point-min))
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(while (search-forward "Main." nil t) (replace-match "" nil t))))
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(defun ghc-core-clean-buffer ()
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"Remove commonly ignored annotations and namespace prefixes
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in the current buffer."
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(interactive)
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(ghc-core-clean-region (point-min) (point-max)))
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;;;###autoload
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(defun ghc-core-create-core ()
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"Compile and load the current buffer as tidy core."
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(interactive)
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(save-buffer)
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(let* ((core-buffer (generate-new-buffer "ghc-core"))
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(neh (lambda () (kill-buffer core-buffer))))
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(add-hook 'next-error-hook neh)
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(apply #'call-process ghc-core-program nil core-buffer nil
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"-ddump-simpl" "-c" (buffer-file-name) ghc-core-program-args)
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(display-buffer core-buffer)
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(with-current-buffer core-buffer
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(ghc-core-mode))
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(remove-hook 'next-error-hook neh)))
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;;;###autoload
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(add-to-list 'auto-mode-alist '("\\.hcr\\'" . ghc-core-mode))
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;;;###autoload
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(add-to-list 'auto-mode-alist '("\\.dump-simpl\\'" . ghc-core-mode))
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;;;###autoload
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(define-derived-mode ghc-core-mode haskell-mode "GHC-Core"
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"Major mode for GHC Core files.")
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(provide 'ghc-core)
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;;; ghc-core.el ends here
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