Problem:
Users of the Roslyn (C#) LSP have encountered significant delays when
retrieving pull diagnostics in large documents while using Neovim. For
instance, diagnostics in a 2000-line .cs file can take over 20 seconds
to display after edits in Neovim, whereas in VS Code, diagnostics for
the same file are displayed almost instantly.
As [mparq noted](https://github.com/seblj/roslyn.nvim/issues/93#issuecomment-2508940330)
in https://github.com/seblj/roslyn.nvim/issues/93, VS Code leverages
additional parameters specified in the [LSP documentation for
textDocument/diagnostic](https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#documentDiagnosticParams),
specifically:
- previousResultId
- identifier
Solution:
When requesting diagnostics, Neovim should include the
`previousResultId` and `identifier` parameters as part of the request.
These parameters enable the server to utilize caching and return
incremental results.
Support for maintaining state is already present in the
[textDocument/semanticTokens implementation](8f84167c30/runtime/lua/vim/lsp/semantic_tokens.lua (L289)).
A similar mechanism can be implemented in `textDocument/diagnostic` handler.
Problem:
Nvim needlessly requests inlay_hints even if they are disabled for a given buffer.
Solution:
Add the missing `enabled` check in `on_refresh`.
Rest of the code has this check already so that's the only needed one to fix this.
Problem: `trigger` is a custom word not yet used in APIs.
Solution: Use `get` instead because the main effect is that the
completion candidates will be collected (and shown by default,
but follow-up commits are planned to add an `on_result` callback
that allows more general handling).
---------
Co-authored-by: Christian Clason <c.clason@uni-graz.at>
Problem:
Given that `vim.snippet.expand()` sets temporary `<tab>`/`<s-tab>`
keymaps there is no way to build "smart-tab" functionality where `<tab>`
chooses the next completion candidate if the popup menu is visible.
Solution:
Set the keymap permanent in `_defaults`.
The downside of this approach is that users of multiple snippet engine's
need to adapt their keymaps to handle all their engines that are in use.
For example:
vim.keymap.set({ 'i', 's' }, "<Tab>", function()
if foreign_snippet.active() then
return "<Cmd>lua require('foreign_snippet').jump()<CR>"
elseif vim.snippet.active({ direction = 1 }) then
return "<Cmd>lua vim.snippet.jump(1)<CR>"
else
return key
end
end, { expr = true })
Upside is that using `vim.keymap.set` to override keymaps is a well
established pattern and `vim.snippet.expand` calls made by nvim itself
or plugins have working keymaps out of the box.
Co-authored-by: Maria José Solano <majosolano99@gmail.com>
Problem: The current implementation creates a unique autocommand group for each floating preview window, which is inefficient and can lead to numerous autocommand groups.
Solution: Use a single shared autocommand group with improved window validation to properly clean up LSP floating preview windows.
Problem:
vim.lsp.completion with "autotrigger" enabled, does not send
completion context, even though it has all the necessary info.
Solution:
Include the context for "autotrigger".
trigger() also optionally accepts context when manually invoked.
Problem: Last line in a window does not store correct `wl_lastlnum` if
lines below it are concealed (resulting in e.g. incorrect
cursor row).
Solution: Increment `wl_lastlnum` while it points to a line above a
concealed line.
Problem: After 47aaddfa the max_height option is no longer respected.
Hover documentation and Signature help windows take up the
entire text height.
Solution: Compare to window's current height and only modify the height
if it would reduce the height, not enlarge it.
Problem: _on_conceal_line callbacks are not invoked if callback has not
let Nvim know it wants to receive them. But this may change on
factors other than what is currently checked (changed buffer).
Solution: Forego this optimization, callback is still guarded behind
'conceallevel'.
Problem:
Indenting text is a common task in plugins/scripts for
presentation/formatting, yet vim has no way of doing it (especially
"dedent", and especially non-buffer text).
Solution:
Introduce `vim.text.indent()`. It sets the *exact* indentation because
that's a more difficult (and thus more useful) task than merely
"increasing the current indent" (which is somewhat easy with a `gsub()`
one-liner).
Problem: Height of a (markdown) `vim.lsp.util.open_floating_preview()`
window can be reduced to account for concealed lines (after #31324).
Solution: Set the window height to the text height of the preview window.
Set 'concealcursor' to avoid unconcealing the cursorline when
entering the hover window.
Problem:
After https://github.com/neovim/neovim/pull/32377 selecting snippets
provided by luals inserted the multi-line text before accepting the
candidates. That's inconsistent with servers who provide `textEdit`
instead of `insertText` and having lines shift up/down while cycling
through the completion candidates is a bit irritating.
Solution:
Use the logic used for `textEdit` snippets also for `insertText`
`command` was already resolved via a `completionItem/resolve` request
but only if `additionalTextEdits` were also present, and the
`resolveSupport` capability wasn't listed.
Closes https://github.com/neovim/neovim/issues/32406
Problem: When expanding a completion item that contains a multi-line word, the word is not deleted correctly.
Solution: If the word contains a line break, delete the text from Context.cursor to the current cursor position.
Problem: autotrigger option of vim.lsp.completion.enable() would trigger
all clients, as long as it matched at least one client's
triggerCharacters.
Solution: trigger only the clients with triggerCharacters matching the
character. overtriggering still happens if any client returns
isIncomplete=true (this case is more involved).
Co-authored-by: Mathias Fussenegger <f.mathias@zignar.net>
Follow up to https://github.com/neovim/neovim/pull/32072
If there is no prefix (e.g. at the start of word boundary or a line), it
always used the `filterText` because the `match` function always
returned false.
Problem:
With language servers like lemminx, completing xml tags like `<mo` first
shows the right candidates (`modules`) but after typing `d` the
candidates disappear.
This is because the server returns:
[...]
filterText = "<module",
label = "module",
textEdit = {
newText = "<module>$1</module>$0",
Which resulted in `module` being used as `word`, and `module` doesn't
match the prefix `<mo`. Typing `d` causes the `complete()` filtering
mechanism to kick in and remove the entry.
Solution:
Use `<module` from the `filterText` as `word` if the textEdit/label
heuristic doesn't match.
Problem: open_floating_preview() may be hidden behind current window if
that is floating and has a higher zindex.
Solution: Open floating preview with zindex higher than current window.
Problem:
An LSP configuration that creates client with no root_dir or
workspace_folders can result in vim.lsp.enable attaching to it multiple
times.
Solution:
When checking existing clients, reuse a client if it wasn't initially
configured have any workspace_folders. This more closely matches the
behaviour we had prior to d9235ef
* refactor(shared): extract `vim._list_insert` and `vim._list_remove`
* feat(lsp): add `vim.lsp.foldexpr()`
* docs(lsp): add a todo for state management
* feat(lsp): add `vim.lsp.folding_range.foldclose()`
* feat(lsp): schedule `foldclose()` if the buffer is not up-to-date
* feat(lsp): add `vim.lsp.foldtext()`
* feat(lsp): support multiple folding range providers
* refactor(lsp): expose all folding related functions under `vim.lsp.*`
* perf(lsp): add `lsp.MultiHandler` for do `foldupdate()` only once
Problem:
LSP spec uses the term "position encoding" where we say "offset encoding".
Solution:
- Rename it everywhere except `vim.lsp.Client.offset_encoding` (which would be breaking).
- Mention "position encoding" in the documentation for `vim.lsp.Client.offset_encoding`.
Problem: floaing preview window can be closed by some
ex commands like `only` `fclose` which will not clean the bufvar
Solution: use WinClosed event with floating_winnr for clean
bufnr, and add test cases for vim.lsp.util.open_floating_preview
Before calling "attach" a screen object is just a dummy container for
(row, col) values whose purpose is to be sent as part of the "attach"
function call anyway.
Just create the screen in an attached state directly. Keep the complete
(row, col, options) config together. It is still completely valid to
later detach and re-attach as needed, including to another session.
- Partition the handlers in vim.lsp.handlers as:
- client to server response handlers (RCS)
- server to client request handlers (RSC)
- server to client notification handlers (NSC)
Note use string indexes instead of protocol.methods for improved
typing in LuaLS (tip: use hover on RCS, RSC or NSC).
* deprecate old signatures
* move to new str_byteindex/str_utfindex signature
* use single-underscore name (double-underscore is reserved for Lua itself)
Problem: on `CompleteDone` cursor can jump to the end of line instead of
the end of the completed word.
Solution: remove only inserted word for snippet expansion instead of everything
until eol.
Fixes#30656
Co-authored-by: Mathias Fussenegger <f.mathias@zignar.net>
Co-authored-by: Justin M. Keyes <justinkz@gmail.com>
Problem: Currently completion attribute hl_group is combined with
all items, which is redundant and confusing with kind_hlgroup
Solution: Renamed to abbr_hlgroup and combine it only with the abbr item
(glepnir).
closes: vim/vim#158180fe17f8ffb
Co-authored-by: glepnir <glephunter@gmail.com>
Problem:
- Some servers like LuaLS add unwanted blank lines after multiline
`@param` description.
- List items do not wrap nicely.
Solution:
- When rendering the LSP doc hover, remove blank lines in each `@param`
or `@return`.
- But ensure exactly one empty line before each.
- Set 'breakindent'.
Updated the `rpc.connect` function to support connecting to LSP servers
using hostnames, not just IP addresses. This change includes updates to
the documentation and additional test cases to verify the new
functionality.
- Modified `connect` function to resolve hostnames.
- Updated documentation to reflect the change.
- Added test case for connecting using hostname.
Added a TCP echo server utility function to the LSP test suite. This
server echoes the first message it receives and is used in tests to
verify LSP server connections via both IP address and hostname.
Refactored existing tests to use the new utility function.
Problem: prefix can be a symbol like period, the fuzzy matching can't
handle it correctly.
Solution: when prefix is empty or a symbol add all lsp completion
result into matches.
Problem: Some items of completion results include function signatures that can
cause the pum to be very long when a function has many params, because pum
scales with the longest word/abbr.
Solution: add custom covert function that can customise abbr to remove params.
`buf.code_action` always included diagnostics on a given line from all
clients. Servers should only receive diagnostics they published, and in
the exact same format they sent it.
Should fix https://github.com/neovim/neovim/issues/29500
Problem:
Some language servers (e.g., rust-analyzer, texlab) are desynced when
the user deletes the entire contents of the buffer. This is due to the
discrepancy between how nvim computes diff and how nvim treats empty
buffer.
* diff: If the buffer became empty, then the diff includes the last
line's eol.
* empty buffer: Even if the buffer is empty, nvim regards it as having
a single empty line with eol.
Solution:
Add special case for diff computation when the buffer becomes empty so
that it does not include the eol of the last line.
