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bmag / emacs-purpose

Manage Windows and Buffers According to Purposes

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magit purpose defined by purpose-x-magit can cause error: Wrong number of arguments: (0 . 2), 3

qleguennec opened this issue · comments

commented

The following configuration gives me the error: Wrong number of arguments: (0 . 2), 3 when I call switch-to-buffer or magit:

(use-package window-purpose
  :demand t
  :config
  (purpose-mode)
  (require 'window-purpose-x)

  (setq pop-up-frames t)
  (purpose-x-magit-single-on)
  (add-to-list 'purpose-special-action-sequences
	       '(magit
		 purpose-display-reuse-window-buffer
		 purpose-display-reuse-window-purpose
		 purpose-display-pop-up-frame)))

emacs version: 27.0.50

commented

When you put magit in purpose-special-action-sequences like this, because a function named magit exists, Purpose interprets it as a predicate functions and calls it with 3 arguments.

The problem here is in the purpose-x-magit extension - I should change it to define a Magit purpose instead of magit, then you can put Magit instead of magit. In the meantime you can replace magit with (lambda (purpose _buffer _alist) (eq purpose 'magit)).

I'm gonna change the title to reflect the bug (it is unrelated to Emacs version).

commented

Should be fixed by 34b4d08. You will need to replace magit with Magit in purpose-special-action-sequences.