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fix(diagnostic): clamp diagnostics on negative line numbers (#16497)

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Closes https://github.com/neovim/neovim/issues/16492

Despite having logic for setting the maximum diagnostic line
number to at minimum 0, previously the conditional statement only
checked if lnum and end_lnum were greater than the line count.

Fix: also check if lnum and end_lnum are less than 0.

(cherry picked from commit 2799463ba2)

Co-authored-by: Michael Lingelbach <m.j.lbach@gmail.com>
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github-actions[bot] 2021-12-02 07:02:30 -08:00 committed by GitHub
parent 84784a8391
commit 096f8418c5
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runtime/lua/vim/diagnostic.lua
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@ -386,7 +386,7 @@ local function get_diagnostics(bufnr, opts, clamp)
if not opts.lnum or d.lnum == opts.lnum then
if clamp and vim.api.nvim_buf_is_loaded(b) then
local line_count = buf_line_count[b] - 1
if (d.lnum > line_count or d.end_lnum > line_count) then
if (d.lnum > line_count or d.end_lnum > line_count or d.lnum < 0 or d.end_lnum < 0) then
d = vim.deepcopy(d)
d.lnum = math.max(math.min(d.lnum, line_count), 0)
d.end_lnum = math.max(math.min(d.end_lnum, line_count), 0)