docs: mark tagfunc.lua methods as private

runtime/lua/vim/lsp.lua

@@ -1587,9 +1587,17 @@ function lsp.formatexpr(opts)
   return 0
 end
 
--- Provides an interface between the built-in client and `tagfunc`
+--- Provides an interface between the built-in client and 'tagfunc'.
---
+---
--- Used via `set tagfunc=v:lua.vim.lsp.tagfunc`
+--- When used with normal mode commands (e.g. |CTRL-]|) this will invoke
+--- the "textDocument/definition" LSP method to find the tag under the cursor.
+--- Otherwise, uses "workspace/symbol". If no results are returned from
+--- any LSP servers, falls back to using built-in tags.
+---
+---@param pattern Pattern used to find a workspace symbol
+---@param flags See |tag-function|
+---
+---@returns A list of matching tags
 function lsp.tagfunc(...)
   return require('vim.lsp.tagfunc')(...)
 end

runtime/lua/vim/lsp/tagfunc.lua

@@ -1,6 +1,7 @@
 local lsp = vim.lsp
 local util = vim.lsp.util
 
+---@private
 local function mk_tag_item(name, range, uri, offset_encoding)
   local bufnr = vim.uri_to_bufnr(uri)
   -- This is get_line_byte_from_position is 0-indexed, call cursor expects a 1-indexed position
@@ -12,6 +13,7 @@ local function mk_tag_item(name, range, uri, offset_encoding)
   }
 end
 
+---@private
 local function query_definition(pattern)
   local params = lsp.util.make_position_params()
   local results_by_client, err = lsp.buf_request_sync(0, 'textDocument/definition', params, 1000)
@@ -40,6 +42,7 @@ local function query_definition(pattern)
   return results
 end
 
+---@private
 local function query_workspace_symbols(pattern)
   local results_by_client, err = lsp.buf_request_sync(0, 'workspace/symbol', { query = pattern }, 1000)
   if err then
@@ -58,6 +61,7 @@ local function query_workspace_symbols(pattern)
   return results
 end
 
+---@private
 local function tagfunc(pattern, flags)
   local matches
   if string.match(flags, 'c') then