From: Andrea Corallo via "Emacs development discussions." <emacs-devel@gnu.org>
To: "Mattias Engdegård" <mattiase@acm.org>
Cc: Stefan Monnier <monnier@iro.umontreal.ca>, emacs-devel@gnu.org
Subject: Re: master 0cbcc62: 'assoc' is not side-effect-free; constprop its pure subset
Date: Sun, 01 Nov 2020 09:47:04 +0000 [thread overview]
Message-ID: <xjfmu01flyf.fsf@sdf.org> (raw)
In-Reply-To: <AC6F3AD5-96E4-4210-ADC8-02B1CEA597C4@acm.org> ("Mattias Engdegård"'s message of "Sun, 1 Nov 2020 10:39:33 +0100")
Mattias Engdegård <mattiase@acm.org> writes:
> 31 okt. 2020 kl. 16.06 skrev Stefan Monnier <monnier@iro.umontreal.ca>:
>
>> Oh, indeed: nasty. `assoc` *was* side-effect-free until it grew its new
>> `testfn` argument.
>
> We do have a number of functions that are pure or side-effect-free
> unless given certain arguments. I suppose we could design a system
> that encompasses these cases. Certainly wouldn't mind algebraic effect
> types!
Hi Mattias,
just ot mention, would be nice if we design this to be accessible so we
can use it in the native compiler as well maintaining it just in one
place.
Andrea
next prev parent reply other threads:[~2020-11-01 9:47 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20201031133156.28415.87445@vcs0.savannah.gnu.org>
[not found] ` <20201031133158.04C1220A1C@vcs0.savannah.gnu.org>
2020-10-31 15:06 ` master 0cbcc62: 'assoc' is not side-effect-free; constprop its pure subset Stefan Monnier
2020-11-01 9:39 ` Mattias Engdegård
2020-11-01 9:47 ` Andrea Corallo via Emacs development discussions. [this message]
2020-11-01 12:56 ` Mattias Engdegård
2020-11-01 14:07 ` Stefan Monnier
2020-11-02 5:40 ` Richard Stallman
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