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70 lines
2.4 KiB
70 lines
2.4 KiB
;;; haskell-compat.el --- legacy/compatibility backports for haskell-mode -*- lexical-binding: t -*- |
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;; |
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;; Filename: haskell-compat.el |
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;; Description: legacy/compatibility backports for haskell-mode |
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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 this program. If not, see <http://www.gnu.org/licenses/>. |
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;;; Commentary: |
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;;; Code: |
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(require 'etags) |
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(require 'ring) |
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(require 'outline) |
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(require 'xref nil t) |
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(eval-when-compile |
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(setq byte-compile-warnings '(not cl-functions obsolete))) |
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;; Missing in Emacs23, stolen from Emacs24's `subr.el' |
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(unless (fboundp 'process-live-p) |
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(defun process-live-p (process) |
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"Returns non-nil if PROCESS is alive. |
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A process is considered alive if its status is `run', `open', |
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`listen', `connect' or `stop'." |
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(memq (process-status process) |
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'(run open listen connect stop)))) |
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;; Cross-referencing commands have been replaced since Emacs 25.1. |
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;; These aliases are required to provide backward compatibility. |
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(unless (fboundp 'xref-push-marker-stack) |
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(defalias 'xref-pop-marker-stack 'pop-tag-mark) |
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(defun xref-push-marker-stack (&optional m) |
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"Add point to the marker stack." |
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(ring-insert find-tag-marker-ring (or m (point-marker))))) |
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(unless (fboundp 'outline-hide-sublevels) |
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(defalias 'outline-hide-sublevels 'hide-sublevels)) |
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(unless (fboundp 'outline-show-subtree) |
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(defalias 'outline-show-subtree 'show-subtree)) |
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(unless (fboundp 'outline-hide-sublevels) |
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(defalias 'outline-hide-sublevels 'hide-sublevels)) |
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(unless (fboundp 'outline-show-subtree) |
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(defalias 'outline-show-subtree 'show-subtree)) |
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(unless (fboundp 'xref-find-definitions) |
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(defun xref-find-definitions (ident) |
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(let ((next-p (and (boundp 'xref-prompt-for-identifier) |
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xref-prompt-for-identifier))) |
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(find-tag ident next-p)))) |
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(provide 'haskell-compat) |
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;;; haskell-compat.el ends here
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