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emacs: Only compile replacement functions for emacs < emacs-23

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This avoids the emacs lisp compiler from emitting warnings on this
replacement code, (which warnings would be hard for us to eliminate
since we didn't write the code but copied it verbatim from emacs 23).
This commit is contained in:
Carl Worth 2011-05-11 12:24:46 -07:00
parent 81347e289f
commit 7c58326d62
1 changed files with 22 additions and 10 deletions
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32
emacs/notmuch-lib.el
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@ -116,6 +116,19 @@ within the current window."
(or (memq prop buffer-invisibility-spec)
(assq prop buffer-invisibility-spec)))))
; This lets us avoid compiling these replacement functions when emacs
; is sufficiently new enough to supply them alone. We do the macro
; treatment rather than just wrapping our defun calls in a when form
; specifically so that the compiler never sees the code on new emacs,
; (since the code is triggering warnings that we don't know how to get
; rid of.
;
; A more clever macro here would accept a condition and a list of forms.
(defmacro compile-on-emacs-prior-to-23 (form)
"Conditionally evaluate form only on emacs < emacs-23."
(list 'when (< emacs-major-version 23)
form))
;; Compatibility functions for versions of emacs before emacs 23.
;;
;; Both functions here were copied from emacs 23 with the following copyright:
@ -124,21 +137,20 @@ within the current window."
;; 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
;;
;; and under the GPL version 3 (or later) exactly as notmuch itself.
(when (< emacs-major-version 23)
(defun apply-partially (fun &rest args)
"Return a function that is a partial application of FUN to ARGS.
(compile-on-emacs-prior-to-23
(defun apply-partially (fun &rest args)
"Return a function that is a partial application of FUN to ARGS.
ARGS is a list of the first N arguments to pass to FUN.
The result is a new function which does the same as FUN, except that
the first N arguments are fixed at the values with which this function
was called."
(lexical-let ((fun fun) (args1 args))
(lambda (&rest args2) (apply fun (append args1 args2)))))
(defun mouse-event-p (object)
"Return non-nil if OBJECT is a mouse click event."
(memq (event-basic-type object) '(mouse-1 mouse-2 mouse-3 mouse-movement))))
(lexical-let ((fun fun) (args1 args))
(lambda (&rest args2) (apply fun (append args1 args2))))))
(compile-on-emacs-prior-to-23
(defun mouse-event-p (object)
"Return non-nil if OBJECT is a mouse click event."
(memq (event-basic-type object) '(mouse-1 mouse-2 mouse-3 mouse-movement))))
(provide 'notmuch-lib)