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feat(lsp): pass target buffer to reuse_client predicate #41163

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Problem: The reuse_client predicate does not pass the target buffer,
preventing decisions from being truly made per buffer.

Solution: Pass the target buffer.
This commit is contained in:
Mike J McGuirk
2026-08-07 11:27:19 -04:00
committed by GitHub
parent cd02662ba3
commit fe3aa64945
3 changed files with 7 additions and 5 deletions
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6
runtime/lua/vim/lsp.lua
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@@ -191,7 +191,7 @@ end
---
--- Predicate which decides if a client should be re-used. Used on all running clients. The default
--- implementation re-uses a client if name and root_dir matches.
--- @field reuse_client? fun(client: vim.lsp.Client, config: vim.lsp.ClientConfig): boolean #
--- @field reuse_client? fun(client: vim.lsp.Client, config: vim.lsp.ClientConfig, bufnr: integer): boolean #
---
--- [lsp-root_dir()]()
--- Decides the workspace root: the directory where the LSP server will base its workspaceFolders,
@@ -680,7 +680,7 @@ end
--- running clients. The default implementation re-uses a client if it has the
--- same name and if the given workspace folders (or root_dir) are all included
--- in the client's workspace folders.
--- @field reuse_client? fun(client: vim.lsp.Client, config: vim.lsp.ClientConfig): boolean
--- @field reuse_client? fun(client: vim.lsp.Client, config: vim.lsp.ClientConfig, bufnr: integer): boolean
---
--- Buffer handle to attach to if starting or re-using a client (0 for current).
--- @field bufnr? integer
@@ -759,7 +759,7 @@ function lsp.start(config, opts)
end
for _, client in pairs(lsp.client._all) do
if reuse_client(client, config) then
if reuse_client(client, config, bufnr) then
if opts.attach == false then
return client.id
end