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From: Sebastian Gniazdowski <sgniazdowski@gmail.com>
To: Zsh Users <zsh-users@zsh.org>
Subject: A method to not leak unneeded functions
Date: Mon, 30 Sep 2019 00:22:55 +0200	[thread overview]
Message-ID: <CAKc7PVBiatCfaG5xupix8d8+VH_ScZJRRRJemUuND12Zk0TJuw@mail.gmail.com> (raw)

Hello,
it's often the case when one declares sub-functions inside an autoload
function. The function will leak into the shell and also get redefined
on the next run of the main function. Here's a method to prevent this
from happening:

local -a entry_funs
entry_funs=( ${(k)functions} )
trap "unset -f \"\${(k)functions[@]:#(${(j:|:)${(q@)entry_funs}})}\"
&>/dev/null" EXIT
trap "unset -f \"\${(k)functions[@]:#(${(j:|:)${(q@)entry_funs}})}\"
&>/dev/null; return 1" INT

It will unset any newly detected functions at the moment of leaving of
the main function.
-- 
Sebastian Gniazdowski
News: https://twitter.com/ZdharmaI
IRC: https://kiwiirc.com/client/chat.freenode.net:+6697/#zplugin
Blog: http://zdharma.org

             reply	other threads:[~2019-09-29 22:26 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-29 22:22 Sebastian Gniazdowski [this message]
2019-09-29 22:25 ` Sebastian Gniazdowski
2019-10-03 23:18   ` Sebastian Gniazdowski
2019-10-03 23:25     ` Sebastian Gniazdowski

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