GNU bug report logs - #61066
[PATCH] Add inlay hint support to eglot

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Message #17 received at 61066 <at> debbugs.gnu.org (full text, mbox):

From: Dmitry Gutov <dgutov <at> yandex.ru>
To: Eli Zaretskii <eliz <at> gnu.org>, Dimitri Belopopsky
 <dimitri <at> belopopsky.com>, João Távora
 <joaotavora <at> gmail.com>
Cc: 61066 <at> debbugs.gnu.org
Subject: Re: bug#61066: [PATCH] Add inlay hint support to eglot
Date: Sat, 28 Jan 2023 03:58:53 +0200

On 26/01/2023 08:29, Eli Zaretskii wrote:
> AFAIU, inlay hints provide information of the same kind as ElDoc and
> in similar manner from the display and UX POV.  So I think this
> feature should work via ElDoc, not as a separate from-the-scratch
> implementation.

IIUC the "inlay hints" are about different information.

Information that is not determined by the position of point.

For example, annotating variable declarations with specific types in a 
language that infers types, here's a screenshot: 
https://user-images.githubusercontent.com/2771466/71774757-54269200-2fc8-11ea-8505-ac2f326761ca.png

Or adding parameter types (or names) inside function calls, example: 
https://user-images.githubusercontent.com/2303841/35807174-43bc0c3c-0a82-11e8-8c99-591fb650e1e0.png

So I don't think this fits Eldoc's protocol.

You were probably thinking of signature help (that was my initial 
impression as well).

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