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From: Stephen Leake
Subject: eglot--spinner
Date: Fri, 18 Nov 2022 00:27:39 -0800
User-agent: Gnus/5.13 (Gnus v5.13)

The only uses of eglot--spinner in eglot.el are:

eglot--mode-line-format, where it is added to the mode line.

eglot--signal-textDocument/didChange, where it is set to (list nil
:textDocument/didChange t), meaning didChange is done. Because this is
set to done, it is not actually displayed in the modeline.

For ada-mode, I'd like to use eglot--spinner to show "indexing"
progress; the server is parsing all the files in the project, collecting
cross reference information, which takes a while. The user needs to know
when it is done; then they can use cross reference commands.

So I'd like to delete setting eglot--spinner in
eglot--signal-textDocument/didChange; otherwise that will overwrite the
indexing progress when a buffer is edited.

This would also imply making eglot--spinner public.

That then raises the issue of future conflicting uses of eglot-spinner.
So perhaps it would be better for ada-mode to add another item to the
mode line? To do that requires a hook in eglot--mode-line-format, so it
is grouped with the other eglot-derived mode line items.

-- Stephe

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