This repository has been archived on 2024-10-22. You can view files and clone it, but cannot push or open issues or pull requests.
spacemacs/core/core-jump.el
Arif Er 00f9ab19ac chore: update copyright headers to 2022
The script used to identify and update the change is added into the GitHub
workflows script directory. A workflow action can be created to trigger the
script to update the headers on the first of every new year. Possibly a task for
a consequent PR.
2022-06-03 17:32:20 +02:00

108 lines
4.3 KiB
EmacsLisp

;;; core-jump.el --- Spacemacs Core File -*- lexical-binding: t -*-
;;
;; Copyright (c) 2012-2022 Sylvain Benner & Contributors
;;
;; Author: Sylvain Benner <sylvain.benner@gmail.com>
;; URL: https://github.com/syl20bnr/spacemacs
;;
;; This file is not part of GNU Emacs.
;;
;; This program 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 of the License, or
;; (at your option) any later version.
;;
;; This program 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/>.
(defvar spacemacs-default-jump-handlers '()
"List of jump handlers available in every mode.")
(defvar-local spacemacs-jump-handlers '()
"List of jump handlers local to this buffer.
Jump handlers in this list has the highest priority. A jump
handler jump-handler can be registered by making this call
from a mode hook:
\(add-to-list 'spacemacs-jump-handlers 'jump-handler\)
Handler in this list is called first so only dynamic handlers like
`lsp' should use this one. Conventional jump handlers should use
`spacemacs-jump-handlers-MODE' instead.")
(defmacro spacemacs|define-jump-handlers (mode &rest handlers)
"Defines jump handlers for the given MODE.
This defines a variable `spacemacs-jump-handlers-MODE' to which
handlers can be added. MODE must be a major mode."
(let ((mode-hook (intern (format "%S-hook" mode)))
(handlers-list (intern (format "spacemacs-jump-handlers-%S" mode))))
`(progn
(defvar ,handlers-list ',handlers
,(format (concat "List of mode-specific jump handlers for %S. "
"These take priority over those in "
"`spacemacs-default-jump-handlers'.")
mode))
(with-eval-after-load 'bind-map
(spacemacs/set-leader-keys-for-major-mode ',mode
"gg" 'spacemacs/jump-to-definition
"gG" 'spacemacs/jump-to-definition-other-window)))))
(defun spacemacs//get-jump-handlers ()
"Combine all jump handlers into a list.
They are in order: `spacemacs-jump-handlers',
`spacemacs-jump-handlers-MAJOR-MODE',
`spacemacs-default-jump-handlers'."
(let ((handlers-major-mode-list (intern (format "spacemacs-jump-handlers-%S"
major-mode))))
(append spacemacs-jump-handlers
(if (boundp handlers-major-mode-list)
(symbol-value handlers-major-mode-list)
'())
spacemacs-default-jump-handlers)))
(defun spacemacs/jump-to-definition ()
"Jump to definition around point using the best tool for this action."
(interactive)
(catch 'done
(let ((old-buffer (current-buffer))
(old-point (point)))
(dolist (-handler (spacemacs//get-jump-handlers))
(let ((handler (if (listp -handler) (car -handler) -handler))
(async (plist-get (cdr-safe -handler) :async)))
(ignore-errors
(call-interactively handler))
(when (or (eq async t)
(and (fboundp async) (funcall async))
(not (eq old-point (point)))
(not (equal old-buffer (current-buffer))))
(throw 'done t)))))
(message "No jump handler was able to find this symbol.")))
(defun spacemacs/jump-to-definition-other-window ()
"Jump to definition around point in other window."
(interactive)
(let ((pos (point)))
;; since `spacemacs/jump-to-definition' can be asynchronous we cannot use
;; `save-excursion' here, so we have to bear with the jumpy behavior.
(switch-to-buffer-other-window (current-buffer))
(goto-char pos)
(spacemacs/jump-to-definition)))
;; Set the `:jump' property manually instead of just using `evil-define-motion'
;; in an `eval-after-load' macro invocation because doing that prevents
;; `describe-function' from correctly finding the source.
;;
;; See discussion on https://github.com/syl20bnr/spacemacs/pull/6771
(with-eval-after-load 'evil
(evil-set-command-property 'spacemacs/jump-to-definition :jump t))
(provide 'core-jump)