From: Sebastian Gniazdowski <sgniazdowski@gmail.com>
To: Zsh hackers list <zsh-workers@zsh.org>
Subject: How to set exit trap from inner function?
Date: Fri, 24 Feb 2023 02:08:35 +0000 [thread overview]
Message-ID: <CAKc7PVDooYnQ1hb-HU70rWD8oRpgQ0pR13dyPsY79BwFmqY5dw@mail.gmail.com> (raw)
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I want to automatically clear all functions created from outer function.
auto-unset-funcs() {
# Don't leak any functions
typeset -ga ef
ef=( ${(k)functions} )
# No localtraps – sets in outside scope
trap "unset -f -- \"\${(k)functions[@]:|ef}\" &>/dev/null; unset ef"
EXIT
trap "return 1" INT
}
Above code correctly clears new functions when pasted into the outer
function. However, I would like to avoid pasting and simply do:
outer() {
emulate -L zsh
auto-unset-funcs
# freely define new functions…
}
However, the EXIT trap is executed when auto-unset-funcs exits, not when
outer() does… I thought that lack of localoptions localtraps would declare
the EXIT trap in the first function that has it (outer does, via emulate
-L). Doing setopt localoptions nolocaltraps in auto-unset-funcs didn't
help. Any ideas on having such auto-unset-funcs function?
--
Best regards,
Sebastian Gniazdowski
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next reply other threads:[~2023-02-24 2:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-24 2:08 Sebastian Gniazdowski [this message]
2023-02-24 23:41 ` Bart Schaefer
2023-02-26 9:56 ` Sebastian Gniazdowski
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