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feat(extmarks): add "undo_restore" flag to opt out of undo-restoring

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It is a design goal of extmarks that they allow precise tracking
of changes across undo/redo, including restore the exact positions
after a do/undo or undo/redo cycle. However this behavior is not useful
for all usecases. Many plugins won't keep marks around for long after
text changes, but uses them more like a cache until some external source
(like LSP semantic highlights) has fully updated to changed text and
then will explicitly readjust/replace extmarks as needed.

Add a "undo_restore" flag which is true by default (matches existing
behavior) but can be set to false to opt-out of this behavior.

Delete dead u_extmark_set() code.
This commit is contained in:
bfredl
2023-11-03 12:26:38 +01:00
parent 92e99bb105
commit 68cb4a7405
10 changed files with 101 additions and 54 deletions
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3
src/nvim/api/deprecated.c
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@@ -172,8 +172,7 @@ Integer nvim_buf_set_virtual_text(Buffer buffer, Integer src_id, Integer line, A
decor.virt_text_width = width;
decor.priority = 0;
extmark_set(buf, ns_id, NULL, (int)line, 0, -1, -1, &decor, true,
false, kExtmarkNoUndo, NULL);
extmark_set(buf, ns_id, NULL, (int)line, 0, -1, -1, &decor, true, false, false, NULL);
return src_id;
}