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feat(lsp): detach LSP clients when 'filetype' changes #33707

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Problem:
When the buffer 'filetype' changes, invalid or non-applicable LSP
clients are not detached.

https://github.com/neovim/neovim/issues/33443
https://github.com/neovim/nvim-lspconfig/issues/3326

Solution:
In the enable() routine, check can_start() on _existing_ clients.

(cherry picked from commit b877aa34cf)
This commit is contained in:
Jeremy Fleischman
2025-05-03 14:57:59 -07:00
committed by github-actions[bot]
parent 968947b3c3
commit 216c56b7e0
2 changed files with 61 additions and 0 deletions
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9
runtime/lua/vim/lsp.lua
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@@ -526,6 +526,15 @@ local function lsp_enable_callback(bufnr)
return
end
-- Stop any clients that no longer apply to this buffer.
local clients = lsp.get_clients({ bufnr = bufnr, _uninitialized = true })
for _, client in ipairs(clients) do
if not can_start(bufnr, client.name, lsp.config[client.name]) then
lsp.buf_detach_client(bufnr, client.id)
end
end
-- Start any clients that apply to this buffer.
for name in vim.spairs(lsp._enabled_configs) do
local config = lsp.config[name]
if config and can_start(bufnr, name, config) then