fix #848

Author: sumneko

changelog.md

@@ -1,5 +1,8 @@
 # changelog
 
+## 2.5.4
+* `FIX` [#848](https://github.com/sumneko/lua-language-server/issues/848)
+
 ## 2.5.3
 `2021-12-6`
 * `FIX` [#842](https://github.com/sumneko/lua-language-server/issues/844)

script/parser/newparser.lua

@@ -1649,20 +1649,20 @@ local function parseTable()
             wantSep = true
             local tindex = parseIndex()
             skipSpace()
+            tindex.type   = 'tableindex'
+            tindex.parent = tbl
+            index = index + 1
+            tbl[index] = tindex
             if expectAssign() then
                 skipSpace()
                 local ivalue = parseExp()
-                tindex.type   = 'tableindex'
-                tindex.parent = tbl
                 if ivalue then
                     ivalue.parent = tindex
                     tindex.finish = ivalue.finish
                     tindex.value  = ivalue
                 else
                     missExp()
                 end
-                index = index + 1
-                tbl[index] = tindex
             else
                 missSymbol '='
             end