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fix(diagnostic): virtual_text prefix function should have index and total (#25801)

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The prefix option of the diagnostic virtual text can be a function,
but previously it was only a function of diagnostic.

This function should also have additional parameters index and total,
more consistently and similarily as in the prefix function for
`vim.diagnostic.open_float()`.

These additional parameters will be useful when there are too many
number of diagnostics in a single line.
This commit is contained in:
Jongwook Choi
2023-10-27 09:17:46 -04:00
committed by GitHub
parent 4fcdfa5ad0
commit add1b10b79
3 changed files with 13 additions and 8 deletions
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9
runtime/doc/diagnostic.txt
View File

@@ -404,9 +404,12 @@ config({opts}, {namespace}) *vim.diagnostic.config()*
the beginning of the virtual text.
• 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.
signature (diagnostic, i, total) -> string, where
{diagnostic} is of type |diagnostic-structure|, {i}
is the index of the diagnostic being evaluated, and
{total} is the total number of diagnostics for the
line. 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}

8
runtime/lua/vim/diagnostic.lua
View File

@@ -592,8 +592,10 @@ end
--- * spacing: (number) Amount of empty spaces inserted at the beginning
--- of the virtual text.
--- * 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
--- If a function, it must have the signature (diagnostic, i, total)
--- -> string, where {diagnostic} is of type |diagnostic-structure|,
--- {i} is the index of the diagnostic being evaluated, and {total}
--- is the total number of diagnostics for the line. 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) ->
@@ -1072,7 +1074,7 @@ function M._get_virt_text_chunks(line_diags, opts)
for i = 1, #line_diags do
local resolved_prefix = prefix
if type(prefix) == 'function' then
resolved_prefix = prefix(line_diags[i]) or ''
resolved_prefix = prefix(line_diags[i], i, #line_diags) or ''
end
table.insert(
virt_texts,

4
test/functional/lua/diagnostic_spec.lua
View File

@@ -1237,7 +1237,7 @@ end)
return prefix .. message
]])
eq('[err-code] Some error', exec_lua [[
eq('[(1/1) err-code] Some error', exec_lua [[
local diagnostics = {
make_error('Some error', 0, 0, 0, 0, nil, 'err-code'),
}
@@ -1245,7 +1245,7 @@ end)
vim.diagnostic.set(diagnostic_ns, diagnostic_bufnr, diagnostics, {
underline = false,
virtual_text = {
prefix = function(diag) return string.format('[%s]', diag.code) end,
prefix = function(diag, i, total) return string.format('[(%d/%d) %s]', i, total, diag.code) end,
suffix = '',
}
})