From: Stefan Monnier <monnier@iro.umontreal.ca>
To: "João Távora" <joaotavora@gmail.com>
Cc: Eli Zaretskii <eliz@gnu.org>,
dalal.chinmay.0101@gmail.com, emacs-devel@gnu.org,
dimitri@belopopsky.com, luangruo@yahoo.com
Subject: Re: Eglot "inlay hints" landed
Date: Thu, 23 Feb 2023 20:08:41 -0500 [thread overview]
Message-ID: <jwvlekndgy1.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <CALDnm51z5MdaZGZGwRvgq2Q1dNAjaLeEOHov212Zo=g6d3kHjQ@mail.gmail.com> ("João Távora"'s message of "Thu, 23 Feb 2023 23:59:42 +0000")
>> Also, I'm not sure it gives exactly the info you need/want:
>> I suspect that in some languages you can have:
>>
>> foo (x)
>> ...
>> function foo (bar : Int)
>
> Yeah, in that case we're frobbed. But isn't that a problem already
> those "some languages" for regular "contextual" fontification?
Yes and no: yes, there are already cases where the jit-lock-context
heuristic of refreshing everything *after* a modification is not
sufficient, but as a general rule programming languages are designed for
"forward-only parsing" so it's unusual for a change at POS to affect the
parsing before POS (and most uses of jit-lock limit themselves to
syntactic information, so there are rather few cases where this is
a problem). In those few cases we use things like the
`jit-lock-defer-multiline` property which the major mode's font-lock
rules can place manually in an ad-hoc manner.
In your case, I suspect for the affected language servers there's not much
more we can do but to say that the whole buffer's inlays need to be
recomputed after a change.
> To do this, we use a jit-lock implementation detail,
> jit-lock-context-unfontify-pos, which tells us that the contextual
> fontification has just finished. Not sure how brittle it is, but it
> seems to work reasonably.
I think it won't work reliably in the case where the "immediate"
jit-lock refresh happens to cover everything until window-end (e.g. we
just inserted chunk of text that ends after window-end). In that case
the jit-lock-context thingy will just mark the rest of the buffer as
"not fresh" but won't call your fontification function at all.
[ And of course, there are also those few rare modes that don't use
jit-lock-context at all. ]
I think using your own timer is probably the better option. I'd
make it wait for `eglot-lazy-inlay-hints` rather than (+
eglot-lazy-inlay-hints jit-lock-context-time), but I'd give it as
default value a value computed from `jit-lock-context-time`.
Stefan
next prev parent reply other threads:[~2023-02-24 1:08 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <ypi9cz6ahi5n.fsf@gmail.com>
[not found] ` <83edqqaf8c.fsf@gnu.org>
[not found] ` <2B284D77-97DF-4B3E-89FB-13F0CA93D240@gmail.com>
[not found] ` <CALDnm53otfeDQGr0dWWUhxGLTSuiWTstLXJz1HXQgWLiAgsk=A@mail.gmail.com>
[not found] ` <CA+46MXbbW60t=JccgKGX39jTkOu+i=GZhzSQsfnqBUPb-mnJWg@mail.gmail.com>
2023-02-22 19:42 ` Eglot "inlay hints" landed João Távora
2023-02-23 1:45 ` [SPAM UNSURE] " Stephen Leake
2023-02-23 5:29 ` Chinmay Dalal
2023-02-23 6:31 ` Eli Zaretskii
2023-02-23 9:55 ` Chinmay Dalal
2023-02-23 10:03 ` João Távora
2023-02-23 10:55 ` Dimitri Belopopsky
2023-02-23 11:07 ` João Távora
2023-02-23 12:03 ` João Távora
2023-02-23 13:25 ` Dimitri Belopopsky
2023-02-23 11:05 ` Eli Zaretskii
2023-02-23 11:23 ` João Távora
2023-02-23 12:36 ` Eli Zaretskii
2023-02-23 12:57 ` João Távora
2023-02-23 14:48 ` Eli Zaretskii
2023-02-23 16:09 ` João Távora
2023-02-23 17:17 ` Eli Zaretskii
2023-02-23 17:46 ` João Távora
2023-02-23 18:01 ` Eli Zaretskii
2023-02-23 19:26 ` João Távora
2023-02-23 19:54 ` Eli Zaretskii
2023-02-23 20:03 ` João Távora
2023-02-23 19:27 ` Stefan Monnier
2023-02-23 19:39 ` João Távora
2023-02-23 19:53 ` Stefan Monnier
2023-02-23 20:09 ` João Távora
2023-02-23 22:19 ` Stefan Monnier
2023-02-23 23:59 ` João Távora
2023-02-24 1:08 ` Stefan Monnier [this message]
2023-02-24 2:28 ` João Távora
2023-02-24 7:35 ` Eli Zaretskii
2023-02-24 10:42 ` João Távora
2023-02-24 11:33 ` Eli Zaretskii
2023-02-24 12:26 ` João Távora
2023-02-23 10:17 ` Tassilo Horn
2023-02-23 12:55 ` Chinmay Dalal
2023-02-23 19:50 ` Nikola Pajkovsky
2023-02-23 21:35 ` João Távora
2023-02-23 21:45 ` Nikola Pajkovsky
2023-02-24 4:20 ` Chinmay Dalal
2023-02-24 5:04 ` Chinmay Dalal
2023-02-24 9:59 ` João Távora
2023-02-24 11:03 ` Nikola Pajkovsky
2023-02-27 22:50 ` Johann Klähn
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