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-rw-r--r--runtime/lua/vim/diagnostic.lua8
1 files changed, 5 insertions, 3 deletions
diff --git a/runtime/lua/vim/diagnostic.lua b/runtime/lua/vim/diagnostic.lua
index 9e9b09ed1d..99448982b4 100644
--- a/runtime/lua/vim/diagnostic.lua
+++ b/runtime/lua/vim/diagnostic.lua
@@ -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,