fix #274

Author: sumneko

changelog.md

@@ -2,6 +2,7 @@
 
 ## 1.5.0
 * `NEW` setting `runtime.unicodeName`
+* `FIX` [#274](https://github.com./sumneko/lua-language-server/issues/274)
 
 ## 1.4.0
 `2020-12-3`

script/parser/guide.lua

@@ -733,8 +733,9 @@ function m.getKeyNameOfLiteral(obj)
         else
             return 'b'
         end
+    else
+        return 'x'
     end
-    return nil
 end
 
 function m.getKeyName(obj)

test/hover/init.lua

@@ -1459,3 +1459,20 @@ local v: Object {
     a: string,
 }
 ]]
+
+TEST [[
+---@class Object
+---@field a string
+
+---@type Object[]
+local t
+
+local <?v?> = t[i]
+
+print(v.a)
+]]
+[[
+local v: Object {
+    a: string,
+}
+]]