fix #1368

changelog.md

@@ -5,6 +5,7 @@
 * `CHG` improve supports for multi-workspace
 * `FIX` [#1354](https://github.com/sumneko/lua-language-server/issues/1354)
 * `FIX` [#1355](https://github.com/sumneko/lua-language-server/issues/1355)
+* `FIX` [#1368](https://github.com/sumneko/lua-language-server/issues/1368)
 
 ## 3.5.0
 `2022-7-19`

script/vm/generic.lua

@@ -11,11 +11,11 @@ local mt = {}
 mt.__index = mt
 mt.type = 'generic'
 
----@param source    vm.object
+---@param source    vm.object?
 ---@param resolved? table<string, vm.node>
----@return vm.object
+---@return vm.object?
 local function cloneObject(source, resolved)
-    if not resolved then
+    if not resolved or not source then
         return source
     end
     if source.type == 'doc.generic.name' then
@@ -126,8 +126,11 @@ function mt:resolve(uri, args)
             result:merge(nd)
         else
             ---@cast nd -vm.global
-            local clonedNode = vm.compileNode(cloneObject(nd, resolved))
-            result:merge(clonedNode)
+            local clonedObject = cloneObject(nd, resolved)
+            if clonedObject then
+                local clonedNode   = vm.compileNode(clonedObject)
+                result:merge(clonedNode)
+            end
         end
     end
     return result

script/vm/runner.lua

@@ -294,6 +294,7 @@ function mt:_lookIntoChild(action, topNode, outNode)
         end
     elseif action.type == 'local' then
         if  action.value
+        and action.ref
         and action.value.type == 'select' then
             local index = action.value.sindex
             local call  = action.value.vararg