check nil

Author: sumneko

script/core/diagnostics/duplicate-doc-alias.lua

@@ -17,6 +17,9 @@ return function (uri, callback)
     for _, doc in ipairs(state.ast.docs) do
         if doc.type == 'doc.alias' then
             local name = guide.getKeyName(doc)
+            if not name then
+                return
+            end
             if not cache[name] then
                 local docs = vm.getDocSets(uri, name)
                 cache[name] = {}

script/core/hover/table.lua

@@ -154,7 +154,7 @@ local function getNodeMap(fields, keyMap)
     local nodeMap = {}
     for _, field in ipairs(fields) do
         local key = vm.getKeyName(field)
-        if not keyMap[key] then
+        if not key or not keyMap[key] then
             goto CONTINUE
         end
         await.delay()