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fix(diagnostics): don't apply extmarks to invalid lines #29321

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Problem:
If there are errors in the last line of a buffer, something like `Gdk` or
`G2k3J` will produce an error (at least with `lua_ls`):

    Error executing vim.schedule lua callback:
    .../neovim/share/nvim/runtime/lua/vim/diagnostic.lua:1446: Invalid 'line': out of range

Solution:
Only set extmarks if the target buffer line still exists

(cherry picked from commit e5e81262af)
This commit is contained in:
Riley Bruins
2024-06-19 09:28:44 -07:00
committed by Christian Clason
parent 5955ef0ba8
commit 21157459fe
1 changed files with 7 additions and 1 deletions
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8
runtime/lua/vim/diagnostic.lua
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@ -1239,6 +1239,10 @@ M.handlers.signs = {
bufnr = get_bufnr(bufnr)
opts = opts or {}
if not api.nvim_buf_is_loaded(bufnr) then
return
end
if opts.signs and opts.signs.severity then
diagnostics = filter_by_severity(opts.signs.severity, diagnostics)
end
@ -1323,8 +1327,10 @@ M.handlers.signs = {
local numhl = opts.signs.numhl or {}
local linehl = opts.signs.linehl or {}
local line_count = api.nvim_buf_line_count(bufnr)
for _, diagnostic in ipairs(diagnostics) do
if api.nvim_buf_is_loaded(diagnostic.bufnr) then
if diagnostic.lnum <= line_count then
api.nvim_buf_set_extmark(bufnr, ns.user_data.sign_ns, diagnostic.lnum, 0, {
sign_text = text[diagnostic.severity] or text[M.severity[diagnostic.severity]] or 'U',
sign_hl_group = sign_highlight_map[diagnostic.severity],