cleanup

Author: sumneko

script/vm/node.lua

@@ -13,9 +13,6 @@ mt.type       = 'vm.node'
 mt.optional   = nil
 mt.lastInfer  = nil
 mt.data       = nil
----@type vm.node[]
-mt._childs    = nil
-mt._locked    = false
 
 ---@param node vm.node | vm.object
 function mt:merge(node)
@@ -29,20 +26,10 @@ function mt:merge(node)
         if node:isOptional() then
             self.optional = true
         end
-        if node._locked then
-            if not self._childs then
-                self._childs = {}
-            end
-            if not self._childs[node] then
-                self._childs[#self._childs+1] = node
-                self._childs[node] = true
-            end
-        else
-            for _, obj in ipairs(node) do
-                if not self[obj] then
-                    self[obj]     = true
-                    self[#self+1] = obj
-                end
+        for _, obj in ipairs(node) do
+            if not self[obj] then
+                self[obj]     = true
+                self[#self+1] = obj
             end
         end
     else
@@ -53,84 +40,17 @@ function mt:merge(node)
     end
 end
 
-function mt:_each(mark, callback)
-    if mark[self] then
-        return
-    end
-    mark[self] = true
-    for i = 1, #self do
-        callback(self[i])
-    end
-    local childs = self._childs
-    if not childs then
-        return
-    end
-    for i = 1, #childs do
-        local child = childs[i]
-        if not child:isLocked() then
-            child:_each(mark, callback)
-        end
-    end
-end
-
-function mt:_expand()
-    local childs = self._childs
-    if not childs then
-        return
-    end
-    self._childs = nil
-
-    local mark = {}
-    mark[self] = true
-
-    local function insert(obj)
-        if not self[obj] then
-            self[obj]     = true
-            self[#self+1] = obj
-        end
-    end
-
-    for i = 1, #childs do
-        local child = childs[i]
-        if child:isLocked() then
-            if not self._childs then
-                self._childs = {}
-            end
-            if not self._childs[child] then
-                self._childs[#self._childs+1] = child
-                self._childs[child] = true
-            end
-        else
-            child:_each(mark, insert)
-        end
-    end
-end
-
 ---@return boolean
 function mt:isEmpty()
-    self:_expand()
     return #self == 0
 end
 
 ---@param n integer
 ---@return vm.object?
 function mt:get(n)
-    self:_expand()
     return self[n]
 end
 
-function mt:lock()
-    self._locked = true
-end
-
-function mt:unlock()
-    self._locked = false
-end
-
-function mt:isLocked()
-    return self._locked == true
-end
-
 function mt:setData(k, v)
     if not self.data then
         self.data = {}
@@ -175,7 +95,6 @@ end
 
 ---@return fun():vm.object
 function mt:eachObject()
-    self:_expand()
     local i = 0
     return function ()
         i = i + 1