4 files changed, 23 insertions, 5 deletions
diff --git a/server/src/matcher/completion.lua b/server/src/matcher/completion.lua
index ce6fd277..5d651034 100644
--- a/server/src/matcher/completion.lua
+++ b/server/src/matcher/completion.lua
@@ -307,5 +307,8 @@ return function (vm, pos)
             searchAsSuffix(result, callback)
         end
     end
+    if #list == 0 then
+        return nil
+    end
     return list
 end
diff --git a/server/src/matcher/vm.lua b/server/src/matcher/vm.lua
index 6248e550..e7863e47 100644
--- a/server/src/matcher/vm.lua
+++ b/server/src/matcher/vm.lua
@@ -778,11 +778,17 @@ function mt:getSimple(simple, mode)
     local value = self:getExp(simple[1])
     local field
     local parentName
-    if simple[1].type == 'name' then
+    local tp = simple[1].type
+    if tp == 'name' then
         field = self:getName(simple[1][1])
         parentName = field.key
+    elseif tp == 'string' or tp == 'number' or tp == 'nil' or tp == 'boolean' then
+        local v = self:createValue(tp, simple[1], simple[1][1])
+        field = self:createLocal('', simple[1], v)
+        parentName = '*' .. tp
     else
-        field = self:createValue('any', simple[1])
+        local v = self:createValue('any', simple[1])
+        field = self:createLocal('', simple[1], v)
         parentName = '?'
     end
     local object
diff --git a/server/src/method/textDocument/completion.lua b/server/src/method/textDocument/completion.lua
index d202f1a5..b866d18c 100644
--- a/server/src/method/textDocument/completion.lua
+++ b/server/src/method/textDocument/completion.lua
@@ -4,7 +4,7 @@ return function (lsp, params)
     local uri = params.textDocument.uri
     local vm, lines = lsp:loadVM(uri)
     if not vm then
-        return {}
+        return nil
     end
     -- lua是从1开始的，因此都要+1
     local position = lines:position(params.position.line + 1, params.position.character + 1)
diff --git a/server/test/completion/init.lua b/server/test/completion/init.lua
index df2b9c80..96a12032 100644
--- a/server/test/completion/init.lua
+++ b/server/test/completion/init.lua
@@ -67,8 +67,12 @@ function TEST(script)
         local vm = matcher.vm(ast)
         assert(vm)
         local result = matcher.completion(vm, pos)
-        assert(result)
-        assert(eq(expect, result))
+        if expect then
+            assert(result)
+            assert(eq(expect, result))
+        else
+            assert(result == nil)
+        end
     end
 end
 
@@ -257,4 +261,9 @@ xxx()
     },
 }
 
+TEST [[
+(''):@
+]]
+(EXISTS)
+
 --TEST 'local s = "a:@"' (nil) TODO