fix #1499

Author: sumneko

changelog.md

@@ -6,6 +6,7 @@
 * `FIX` `diagnostics.workspaceDelay` can not prevent first workspace diagnostic
 * `FIX` [#1476](https://github.com/sumneko/lua-language-server/issues/1476)
 * `FIX` [#1493](https://github.com/sumneko/lua-language-server/issues/1493)
+* `FIX` [#1499](https://github.com/sumneko/lua-language-server/issues/1499)
 
 ## 3.5.3
 `2022-8-13`

script/core/signature.lua

@@ -60,6 +60,9 @@ local function makeOneSignature(source, oop, index)
         : gsub('%b()', function (str)
             return ('_'):rep(#str)
         end)
+        : gsub('%b{}', function (str)
+            return ('_'):rep(#str)
+        end)
         : gsub('[%[%]%(%)]', '_')
     for start, finish in converted:gmatch '%s*()[^,]+()' do
         i = i + 1

test/signature/init.lua

@@ -300,3 +300,19 @@ X(1, <?2?>)
 {
 'function X(a: number, <!b: number!>)',
 }
+
+TEST [[
+---@alias A { x:number, y:number, z:number }
+
+---comment
+---@param a A
+---@param b string
+function X(a, b)
+    
+end
+
+X({}, <??>)
+]]
+{
+'function X(a: { x: number, y: number, z: number }, <!b: string!>)'
+}