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lsp: fix textDocument/completion handling

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fix: #11826
Some lanuguage servers return complementary candidates whose prefixes do not match are also returned.
So we exclude completion candidates whose prefix does not match.
ex) Microsoft python-language-server, rust-analyzer
This commit is contained in:
Hirokazu Hata
2020-02-18 13:38:52 +09:00
parent e2ed8053bf
commit 4ac376740c
3 changed files with 21 additions and 3 deletions
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4
runtime/lua/vim/lsp.lua
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@@ -945,12 +945,14 @@ function lsp.omnifunc(findstart, base)
-- Get the start position of the current keyword
local textMatch = vim.fn.match(line_to_cursor, '\\k*$')
local prefix = line_to_cursor:sub(textMatch+1)
local params = util.make_position_params()
local items = {}
lsp.buf_request(bufnr, 'textDocument/completion', params, function(err, _, result)
if err or not result then return end
local matches = util.text_document_completion_list_to_complete_items(result)
local matches = util.text_document_completion_list_to_complete_items(result, prefix)
-- TODO(ashkan): is this the best way to do this?
vim.list_extend(items, matches)
vim.fn.complete(textMatch+1, items)