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fix(diagnostic): handle an unknown or missing client (#16242)

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Sometimes plugins use pseudo-client IDs (e.g. nvim-lint or null-ls) in
order to hook into the LSP infrastructure without being a bona fide LSP
client. In these cases, get_client_by_id() will return nil since the
client ID given does not correspond to a real client recognized by the
LSP subsystem. When this happens, use "unknown" for the client name.
This commit is contained in:
Gregory Anders 2021-11-05 10:10:27 -06:00 committed by GitHub
parent c0ba315b54
commit 1fdbd29dfa
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1 changed files with 1 additions and 1 deletions
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runtime/lua/vim/lsp/diagnostic.lua
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@ -147,7 +147,7 @@ function M.get_namespace(client_id)
vim.validate { client_id = { client_id, 'n' } }
if not _client_namespaces[client_id] then
local client = vim.lsp.get_client_by_id(client_id)
local name = string.format("vim.lsp.%s.%d", client.name, client_id)
local name = string.format("vim.lsp.%s.%d", client and client.name or "unknown", client_id)
_client_namespaces[client_id] = vim.api.nvim_create_namespace(name)
end
return _client_namespaces[client_id]