test delay refresh node cache

#1595

script/fs-utility.lua

@@ -96,11 +96,15 @@ local function split(str, sep)
     return t
 end
 
+---@class dummyfs
+---@operator div(string|fs.path|dummyfs): dummyfs
+---@field files table
 local dfs = {}
 dfs.__index = dfs
 dfs.type = 'dummy'
 dfs.path = ''
 
+---@return dummyfs
 function m.dummyFS(t)
     return setmetatable({
         files = t or {},
@@ -257,7 +261,7 @@ function dfs:saveFile(path, text)
     return true
 end
 
----@param path   string|fs.path
+---@param path   string|fs.path|dummyfs
 ---@param option table
 ---@return fs.path?
 local function fsAbsolute(path, option)
@@ -449,7 +453,7 @@ local function fileRemove(path, option)
     end
 end
 
----@param source fs.path?
+---@param source fs.path|dummyfs?
 ---@param target fs.path?
 ---@param option table
 local function fileCopy(source, target, option)
@@ -485,7 +489,7 @@ local function fileCopy(source, target, option)
     end
 end
 
----@param source fs.path?
+---@param source fs.path|dummyfs?
 ---@param target fs.path?
 ---@param option table
 local function fileSync(source, target, option)
@@ -594,8 +598,8 @@ function m.fileRemove(path, option)
 end
 
 --- 复制文件（夹）
----@param source string|fs.path
----@param target string|fs.path
+---@param source string|fs.path|dummyfs
+---@param target string|fs.path|dummyfs
 ---@return table
 function m.fileCopy(source, target, option)
     option = buildOption(option)
@@ -608,8 +612,8 @@ function m.fileCopy(source, target, option)
 end
 
 --- 同步文件（夹）
----@param source string|fs.path
----@param target string|fs.path
+---@param source string|fs.path|dummyfs
+---@param target string|fs.path|dummyfs
 ---@return table
 function m.fileSync(source, target, option)
     option = buildOption(option)

script/timer.lua

@@ -97,7 +97,13 @@ local function onTick()
     freeQueue[#freeQueue + 1] = q
 end
 
+---@class timer.manager
 local m = {}
+
+---@class timer
+---@field _onTimer? fun(self: timer)
+---@field _timeoutFrame integer
+---@field _timeout integer
 local mt = {}
 mt.__index = mt
 mt.type = 'timer'

script/vm/node.lua

@@ -3,6 +3,7 @@ local files    = require 'files'
 local vm       = require 'vm.vm'
 local ws       = require 'workspace.workspace'
 local guide    = require 'parser.guide'
+local timer    = require 'timer'
 
 ---@type table<vm.object, vm.node>
 vm.nodeCache = {}
@@ -475,10 +476,22 @@ function vm.createNode(a, b)
     return node
 end
 
+---@type timer?
+local delayTimer
 files.watch(function (ev, uri)
     if ev == 'version' then
         if ws.isReady(uri) then
-            vm.clearNodeCache()
+            if PREVIEW then
+                if delayTimer then
+                    delayTimer:restart()
+                end
+                delayTimer = timer.wait(1, function ()
+                    delayTimer = nil
+                    vm.clearNodeCache()
+                end)
+            else
+                vm.clearNodeCache()
+            end
         end
     end
 end)