2 files changed, 31 insertions, 3 deletions
diff --git a/server-beta/src/searcher/getValue.lua b/server-beta/src/searcher/getValue.lua
new file mode 100644
index 00000000..5f716b65
--- /dev/null
+++ b/server-beta/src/searcher/getValue.lua
@@ -0,0 +1,2 @@
+return function ()
+end
diff --git a/server-beta/src/searcher/init.lua b/server-beta/src/searcher/init.lua
index 2b85dd24..5a6bc014 100644
--- a/server-beta/src/searcher/init.lua
+++ b/server-beta/src/searcher/init.lua
@@ -1,7 +1,9 @@
-local guide = require 'parser.guide'
-local files = require 'files'
+local guide    = require 'parser.guide'
+local files    = require 'files'
+local getValue = require 'searcher.getValue'
 
 local setmetatable = setmetatable
+local assert       = assert
 
 _ENV = nil
 
@@ -19,6 +21,28 @@ local specials = {
 local mt = {}
 mt.__index = mt
 mt.__name = 'searcher'
+mt._step = 0
+
+function mt:step()
+    self._step = self._step + 1
+    assert(self.step <= 100, 'Stack overflow!')
+    if not self._stepClose then
+        self._stepClose = setmetatable({}, {
+            __close = function ()
+                self._step = self._step - 1
+            end
+        })
+    end
+    return self._stepClose
+end
+
+--- 获取关联的值
+---@param source table
+---@return value table
+function mt:getValue(source)
+    local _ <close> = self:step()
+    return getValue(self, source)
+end
 
 ---@class engineer
 local m = {}
@@ -29,7 +53,6 @@ local m = {}
 function m.create(uri)
     local ast = files.getAst(uri)
     local searcher = setmetatable({
-        step = 0,
         ast  = ast.ast,
         uri  = uri,
         cache = {
@@ -39,6 +62,9 @@ function m.create(uri)
             value = {},
             specialName = {},
         },
+        lock = {
+            value = {},
+        }
     }, mt)
     return searcher
 end