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Add & use add-transient-hook! macro

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Henrik Lissner 2017-03-02 01:43:00 -05:00
parent 10b4d94627
commit 2d190fe0c5
3 changed files with 15 additions and 7 deletions
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13
core/core-lib.el
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@ -65,6 +65,19 @@ compilation."
(save-silently t))
,@forms)))
(defmacro add-transient-hook! (hook &rest forms)
"Attaches transient forms to a hook (can also be a function, which will be
advised instead). These forms will be evaluated only once when that
function/hook is first invoked, then it detaches itself."
(let ((fn (intern (format "doom--transient-hook-%s" hook))))
`(progn
(defun ,fn (&rest _)
,@forms
,(cond ((functionp hook) `(advice-remove ',hook ',fn))
((symbolp hook) `(remove-hook ',hook ',fn))))
,(cond ((functionp hook) `(advice-add ',hook :before ',fn))
((symbolp hook) `(add-hook ',hook ',fn))))))
(defmacro add-hook! (&rest args)
"A convenience macro for `add-hook'. Takes, in order: