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feat(diagnostic): specify diagnostic virtual text prefix as a function

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- vim.diagnostic.config() now accepts a function for the virtual_text.prefix
  option, which allows for rendering e.g., diagnostic severities differently.
This commit is contained in:
Isak Samsten
2023-04-17 13:53:34 +02:00
committed by GitHub
parent e83682e652
commit 07b60efd80
4 changed files with 72 additions and 16 deletions
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18
runtime/lua/vim/diagnostic.lua
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@@ -600,7 +600,10 @@ end
--- means to always show the diagnostic source.
--- * spacing: (number) Amount of empty spaces inserted at the beginning
--- of the virtual text.
--- * prefix: (string) Prepend diagnostic message with prefix.
--- * prefix: (string or function) prepend diagnostic message with prefix.
--- If a function, it must have the signature (diagnostic) -> string,
--- where {diagnostic} is of type |diagnostic-structure|. This can be
--- used to render diagnostic symbols or error codes.
--- * suffix: (string or function) Append diagnostic message with suffix.
--- If a function, it must have the signature (diagnostic) ->
--- string, where {diagnostic} is of type |diagnostic-structure|.
@@ -1066,8 +1069,15 @@ function M._get_virt_text_chunks(line_diags, opts)
-- Create a little more space between virtual text and contents
local virt_texts = { { string.rep(' ', spacing) } }
for i = 1, #line_diags - 1 do
table.insert(virt_texts, { prefix, virtual_text_highlight_map[line_diags[i].severity] })
for i = 1, #line_diags do
local resolved_prefix = prefix
if type(prefix) == 'function' then
resolved_prefix = prefix(line_diags[i]) or ''
end
table.insert(
virt_texts,
{ resolved_prefix, virtual_text_highlight_map[line_diags[i].severity] }
)
end
local last = line_diags[#line_diags]
@@ -1078,7 +1088,7 @@ function M._get_virt_text_chunks(line_diags, opts)
suffix = suffix(last) or ''
end
table.insert(virt_texts, {
string.format('%s %s%s', prefix, last.message:gsub('\r', ''):gsub('\n', ' '), suffix),
string.format(' %s%s', last.message:gsub('\r', ''):gsub('\n', ' '), suffix),
virtual_text_highlight_map[last.severity],
})