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fix(lsp): completion word includes leading space from label #38435

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Problem: clangd prepends a space/bullet indicator to label. With
labelDetailsSupport enabled, the signature moves to labelDetails,
making label shorter. This flips the length comparison in
get_completion_word, causing it to use item.label directly and
insert the indicator into the buffer.

Solution: only prefer filterText over label when label starts with non-keyword
character in get_completion_word fallback branch.
This commit is contained in:
glepnir
2026-03-23 23:02:30 +08:00
committed by GitHub
parent e2afa762c8
commit f2d0b06ecb
2 changed files with 18 additions and 4 deletions
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6
runtime/lua/vim/lsp/completion.lua
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@@ -195,7 +195,11 @@ local function get_completion_word(item, prefix, match)
--
-- Typing `i` would remove the candidate because newText starts with `t`.
local text = parse_snippet(item.insertText or item.textEdit.newText)
local word = #text < #item.label and vim.fn.matchstr(text, '\\k*') or item.label
local word = #text < #item.label and vim.fn.matchstr(text, '\\k*')
or (
item.filterText and vim.fn.match(item.label, '^\\k') == -1 and item.filterText
or item.label
)
if item.filterText and not match(word, prefix) then
return item.filterText
else