searcher太难拼了，我们还是叫vm吧

24 files changed, 203 insertions, 207 deletions

diff --git a/server-beta/src/core/definition.lua b/server-beta/src/core/definition.lua
index a7008926..865fc7cb 100644
--- a/server-beta/src/core/definition.lua
+++ b/server-beta/src/core/definition.lua
@@ -1,7 +1,7 @@
 local guide     = require 'parser.guide'
 local workspace = require 'workspace'
 local files     = require 'files'
-local searcher  = require 'searcher'
+local vm        = require 'vm'
 
 local function findDef(source, callback)
     if  source.type ~= 'local'
@@ -17,7 +17,7 @@ local function findDef(source, callback)
     and source.type ~= 'goto' then
         return
     end
-    searcher.eachDef(source, function (info)
+    vm.eachDef(source, function (info)
         if info.mode == 'declare'
         or info.mode == 'set'
         or info.mode == 'return' then
diff --git a/server-beta/src/core/diagnostics/global-in-nil-env.lua b/server-beta/src/core/diagnostics/global-in-nil-env.lua
index d8cc0075..9a0d4f35 100644
--- a/server-beta/src/core/diagnostics/global-in-nil-env.lua
+++ b/server-beta/src/core/diagnostics/global-in-nil-env.lua
@@ -1,6 +1,5 @@
 local files    = require 'files'
 local guide    = require 'parser.guide'
-local searcher = require 'searcher'
 local lang     = require 'language'
 
 -- TODO: 检查路径是否可达
diff --git a/server-beta/src/core/diagnostics/redundant-parameter.lua b/server-beta/src/core/diagnostics/redundant-parameter.lua
index a60c8cdb..ec14188e 100644
--- a/server-beta/src/core/diagnostics/redundant-parameter.lua
+++ b/server-beta/src/core/diagnostics/redundant-parameter.lua
@@ -1,12 +1,12 @@
-local files    = require 'files'
-local guide    = require 'parser.guide'
-local searcher = require 'searcher'
-local lang     = require 'language'
-local define   = require 'proto.define'
-local await    = require 'await'
+local files  = require 'files'
+local guide  = require 'parser.guide'
+local vm     = require 'vm'
+local lang   = require 'language'
+local define = require 'proto.define'
+local await  = require 'await'
 
 local function countLibraryArgs(source)
-    local func = searcher.getLibrary(source)
+    local func = vm.getLibrary(source)
     if not func then
         return nil
     end
@@ -66,7 +66,7 @@ return function (uri, callback)
 
         local func = source.node
         local funcArgs
-        searcher.eachDef(func, function (info)
+        vm.eachDef(func, function (info)
             if info.mode == 'value' then
                 local src = info.source
                 if src.type == 'function' then
diff --git a/server-beta/src/core/diagnostics/undefined-env-child.lua b/server-beta/src/core/diagnostics/undefined-env-child.lua
index 4169a413..df096cb8 100644
--- a/server-beta/src/core/diagnostics/undefined-env-child.lua
+++ b/server-beta/src/core/diagnostics/undefined-env-child.lua
@@ -1,7 +1,7 @@
-local files    = require 'files'
-local guide    = require 'parser.guide'
-local searcher = require 'searcher'
-local lang     = require 'language'
+local files  = require 'files'
+local guide  = require 'parser.guide'
+local vm     = require 'vm'
+local lang   = require 'language'
 
 return function (uri, callback)
     local ast = files.getAst(uri)
@@ -14,7 +14,7 @@ return function (uri, callback)
         if source.node.tag == '_ENV' then
             return
         end
-        local setInENV = searcher.eachRef(source, function (info)
+        local setInENV = vm.eachRef(source, function (info)
             if info.mode == 'set' then
                 return true
             end
diff --git a/server-beta/src/core/diagnostics/undefined-global.lua b/server-beta/src/core/diagnostics/undefined-global.lua
index c3fbccbf..ed81ced3 100644
--- a/server-beta/src/core/diagnostics/undefined-global.lua
+++ b/server-beta/src/core/diagnostics/undefined-global.lua
@@ -1,8 +1,8 @@
-local files    = require 'files'
-local searcher = require 'searcher'
-local lang     = require 'language'
-local library  = require 'library'
-local config   = require 'config'
+local files   = require 'files'
+local vm      = require 'vm'
+local lang    = require 'language'
+local library = require 'library'
+local config  = require 'config'
 
 return function (uri, callback)
     local ast = files.getAst(uri)
@@ -13,7 +13,7 @@ return function (uri, callback)
     local globalCache = {}
 
     -- 遍历全局变量，检查所有没有 mode['set'] 的全局变量
-    local globals = searcher.getGlobals(ast.ast)
+    local globals = vm.getGlobals(ast.ast)
     for key, infos in pairs(globals) do
         if infos.mode['set'] == true then
             goto CONTINUE
@@ -35,7 +35,7 @@ return function (uri, callback)
             local uris = files.findGlobals(key)
             for i = 1, #uris do
                 local destAst = files.getAst(uris[i])
-                local destGlobals = searcher.getGlobals(destAst.ast)
+                local destGlobals = vm.getGlobals(destAst.ast)
                 if destGlobals[key] and destGlobals[key].mode['set'] then
                     globalCache[key] = true
                     goto CONTINUE
diff --git a/server-beta/src/core/diagnostics/unused-function.lua b/server-beta/src/core/diagnostics/unused-function.lua
index ca3a751d..6c53cdf7 100644
--- a/server-beta/src/core/diagnostics/unused-function.lua
+++ b/server-beta/src/core/diagnostics/unused-function.lua
@@ -1,9 +1,9 @@
-local files    = require 'files'
-local guide    = require 'parser.guide'
-local searcher = require 'searcher'
-local define   = require 'proto.define'
-local lang     = require 'language'
-local await    = require 'await'
+local files   = require 'files'
+local guide   = require 'parser.guide'
+local vm      = require 'vm'
+local define  = require 'proto.define'
+local lang    = require 'language'
+local await   = require 'await'
 
 return function (uri, callback)
     local ast = files.getAst(uri)
@@ -22,7 +22,7 @@ return function (uri, callback)
             return
         end
         local hasSet
-        local hasGet = searcher.eachRef(source, function (info)
+        local hasGet = vm.eachRef(source, function (info)
             if     info.mode == 'get' then
                 return true
             elseif info.mode == 'set'
diff --git a/server-beta/src/core/highlight.lua b/server-beta/src/core/highlight.lua
index 7ae5333a..61e3f91a 100644
--- a/server-beta/src/core/highlight.lua
+++ b/server-beta/src/core/highlight.lua
@@ -1,7 +1,7 @@
-local guide    = require 'parser.guide'
-local files    = require 'files'
-local searcher = require 'searcher'
-local define   = require 'proto.define'
+local guide  = require 'parser.guide'
+local files  = require 'files'
+local vm     = require 'vm'
+local define = require 'proto.define'
 
 local function ofLocal(source, callback)
     callback(source)
@@ -21,7 +21,7 @@ local function ofField(source, uri, callback)
     if parent.type == 'tableindex'
     or parent.type == 'tablefield' then
         local tbl = parent.parent
-        searcher.eachField(tbl, function (info)
+        vm.eachField(tbl, function (info)
             if info.key ~= myKey then
                 return
             end
@@ -32,7 +32,7 @@ local function ofField(source, uri, callback)
             callback(info.source)
         end)
     else
-        searcher.eachField(parent.node, function (info)
+        vm.eachField(parent.node, function (info)
             if info.key ~= myKey then
                 return
             end
@@ -58,7 +58,7 @@ local function ofIndex(source, uri, callback)
 end
 
 local function ofLabel(source, callback)
-    searcher.eachRef(source, function (info)
+    vm.eachRef(source, function (info)
         callback(info.source)
     end)
 end
diff --git a/server-beta/src/core/reference.lua b/server-beta/src/core/reference.lua
index 9ffd8fe0..7e265e97 100644
--- a/server-beta/src/core/reference.lua
+++ b/server-beta/src/core/reference.lua
@@ -1,6 +1,6 @@
-local guide     = require 'parser.guide'
-local files     = require 'files'
-local searcher  = require 'searcher'
+local guide = require 'parser.guide'
+local files = require 'files'
+local vm    = require 'vm'
 
 local function isFunction(source, offset)
     if source.type ~= 'function' then
@@ -27,7 +27,7 @@ local function findRef(source, offset, callback)
     and not isFunction(source, offset) then
         return
     end
-    searcher.eachRef(source, function (info)
+    vm.eachRef(source, function (info)
         if info.mode == 'declare'
         or info.mode == 'set'
         or info.mode == 'get'
diff --git a/server-beta/src/core/rename.lua b/server-beta/src/core/rename.lua
index 6f4f26e6..4c67bc9c 100644
--- a/server-beta/src/core/rename.lua
+++ b/server-beta/src/core/rename.lua
@@ -1,9 +1,9 @@
-local files    = require 'files'
-local searcher = require 'searcher'
-local guide    = require 'parser.guide'
-local proto    = require 'proto'
-local define   = require 'proto.define'
-local util     = require 'utility'
+local files  = require 'files'
+local vm     = require 'vm'
+local guide  = require 'parser.guide'
+local proto  = require 'proto'
+local define = require 'proto.define'
+local util   = require 'utility'
 
 local Forcing
 
@@ -127,10 +127,10 @@ local function renameField(source, newname, callback)
     if parent.type == 'setfield'
     or parent.type == 'getfield' then
         local dot = parent.dot
-        local newstr = '[' .. util.vieString('"', newname) .. ']'
+        local newstr = '[' .. util.viewString('"', newname) .. ']'
         callback(source, dot.start, source.finish, newstr)
     elseif parent.type == 'tablefield' then
-        local newstr = '[' .. util.vieString('"', newname) .. ']'
+        local newstr = '[' .. util.viewString('"', newname) .. ']'
         callback(source, source.start, source.finish, newstr)
     elseif parent.type == 'getmethod' then
         if not askForcing(newname) then
@@ -144,7 +144,7 @@ local function renameField(source, newname, callback)
         -- function mt:name () end --> mt['newname'] = function (self) end
         local newstr = string.format('%s[%s] = function '
             , text:sub(parent.start, parent.node.finish)
-            , util.vieString('"', newname)
+            , util.viewString('"', newname)
         )
         callback(source, func.start, parent.finish, newstr)
         local pl = text:find('(', parent.finish, true)
@@ -164,7 +164,7 @@ local function renameGlobal(source, newname, callback)
         callback(source, source.start, source.finish, newname)
         return true
     end
-    local newstr = '_ENV[' .. util.vieString('"', newname) .. ']'
+    local newstr = '_ENV[' .. util.viewString('"', newname) .. ']'
     -- function name () end --> _ENV['newname'] = function () end
     if source.value and source.value.type == 'function'
     and source.value.start < source.start then
@@ -176,7 +176,7 @@ local function renameGlobal(source, newname, callback)
 end
 
 local function ofField(source, newname, callback)
-    return searcher.eachRef(source, function (info)
+    return vm.eachRef(source, function (info)
         local src = info.source
         if     src.type == 'tablefield'
         or     src.type == 'getfield'
@@ -192,7 +192,7 @@ local function ofField(source, newname, callback)
         end
         if src.type == 'string' then
             local quo = src[2]
-            local text = util.vieString(quo, newname)
+            local text = util.viewString(quo, newname)
             callback(src, src.start, src.finish, text)
             return
         elseif src.type == 'field'
@@ -217,7 +217,7 @@ local function rename(source, newname, callback)
         if not isValidName(newname) and not askForcing(newname)then
             return false
         end
-        searcher.eachRef(source, function (info)
+        vm.eachRef(source, function (info)
             callback(info.source, info.source.start, info.source.finish, newname)
         end)
     elseif source.type == 'local' then
diff --git a/server-beta/src/files.lua b/server-beta/src/files.lua
index 34c8c2de..34cba439 100644
--- a/server-beta/src/files.lua
+++ b/server-beta/src/files.lua
@@ -1,10 +1,10 @@
-local platform   = require 'bee.platform'
-local config     = require 'config'
-local glob       = require 'glob'
-local furi       = require 'file-uri'
-local parser     = require 'parser'
-local searcher   = require 'searcher.searcher'
-local guide      = require 'parser.guide'
+local platform = require 'bee.platform'
+local config   = require 'config'
+local glob     = require 'glob'
+local furi     = require 'file-uri'
+local parser   = require 'parser'
+local vm       = require 'vm.vm'
+local guide    = require 'parser.guide'
 
 local m = {}
 
@@ -69,13 +69,13 @@ function m.setText(uri, text)
         return
     end
     file.text = text
-    file.searcher = nil
+    file.vm = nil
     file.lines = nil
     file.ast = nil
     file.globals = nil
     file.links = nil
     m.globalVersion = m.globalVersion + 1
-    searcher.refreshCache()
+    vm.refreshCache()
 
     local diagnostic = require 'provider.diagnostic'
     diagnostic.refresh(originUri)
@@ -123,7 +123,7 @@ function m.remove(uri)
     m.fileMap[uri] = nil
 
     m.globalVersion = m.globalVersion + 1
-    searcher.refreshCache()
+    vm.refreshCache()
 
     local diagnostic = require 'service.diagnostic'
     diagnostic.refresh(file.uri)
@@ -135,7 +135,7 @@ function m.removeAll()
         m.fileMap[uri] = nil
     end
     m.globalVersion = m.globalVersion + 1
-    searcher.refreshCache()
+    vm.refreshCache()
 end
 
 --- 遍历文件
@@ -225,7 +225,7 @@ function m.findGlobals(name)
             file.globals = {}
             local ast = m.getAst(uri)
             if ast then
-                local globals = searcher.getGlobals(ast.ast)
+                local globals = vm.getGlobals(ast.ast)
                 for name in pairs(globals) do
                     file.globals[name] = true
                 end
@@ -248,7 +248,7 @@ function m.findLinkTo(uri)
         if file.links == nil then
             local ast = m.getAst(file.uri)
             if ast then
-                file.links = searcher.getLinks(ast.ast)
+                file.links = vm.getLinks(ast.ast)
             else
                 file.links = false
             end
diff --git a/server-beta/src/searcher/getGlobal.lua b/server-beta/src/searcher/getGlobal.lua
deleted file mode 100644
index 226f2473..00000000
--- a/server-beta/src/searcher/getGlobal.lua
+++ /dev/null
@@ -1,6 +0,0 @@
-local searcher = require 'searcher.searcher'
-
-function searcher.getGlobal(source)
-    searcher.getGlobals(source)
-    return searcher.cache.getGlobal[source]
-end
diff --git a/server-beta/src/searcher/init.lua b/server-beta/src/searcher/init.lua
deleted file mode 100644
index 65753ccd..00000000
--- a/server-beta/src/searcher/init.lua
+++ /dev/null
@@ -1,10 +0,0 @@
-local searcher = require 'searcher.searcher'
-require 'searcher.eachField'
-require 'searcher.eachRef'
-require 'searcher.eachDef'
-require 'searcher.getGlobals'
-require 'searcher.getLinks'
-require 'searcher.getGlobal'
-require 'searcher.getLibrary'
-require 'searcher.getValue'
-return searcher
diff --git a/server-beta/src/service/service.lua b/server-beta/src/service/service.lua
index 7b0b8ad5..e1cb604b 100644
--- a/server-beta/src/service/service.lua
+++ b/server-beta/src/service/service.lua
@@ -1,9 +1,9 @@
-local pub        = require 'pub'
-local thread     = require 'bee.thread'
-local await      = require 'await'
-local timer      = require 'timer'
-local proto      = require 'proto'
-local searcher   = require 'searcher'
+local pub    = require 'pub'
+local thread = require 'bee.thread'
+local await  = require 'await'
+local timer  = require 'timer'
+local proto  = require 'proto'
+local vm     = require 'vm'
 
 local m = {}
 m.type = 'service'
@@ -84,7 +84,7 @@ function m.reportCache()
     local total = 0
     local dead  = 0
 
-    for cache in pairs(searcher.cacheTracker) do
+    for cache in pairs(vm.cacheTracker) do
         total = total + 1
         if cache.dead then
             dead = dead + 1
diff --git a/server-beta/src/searcher/eachDef.lua b/server-beta/src/vm/eachDef.lua
index bc9f9e1c..0274cbee 100644
--- a/server-beta/src/searcher/eachDef.lua
+++ b/server-beta/src/vm/eachDef.lua
@@ -1,6 +1,6 @@
-local searcher  = require 'searcher.searcher'
-local guide     = require 'parser.guide'
-local files     = require 'files'
+local vm    = require 'vm.vm'
+local guide = require 'parser.guide'
+local files = require 'files'
 
 local function checkPath(source, info)
     if source.type == 'goto' then
@@ -17,11 +17,11 @@ local function checkPath(source, info)
     return true
 end
 
-function searcher.eachDef(source, callback)
+function vm.eachDef(source, callback)
     local results = {}
     local valueUris = {}
     local sourceUri = guide.getRoot(source).uri
-    searcher.eachRef(source, function (info)
+    vm.eachRef(source, function (info)
         if info.mode == 'declare'
         or info.mode == 'set'
         or info.mode == 'return'
diff --git a/server-beta/src/searcher/eachField.lua b/server-beta/src/vm/eachField.lua
index 6245108c..549a7dec 100644
--- a/server-beta/src/searcher/eachField.lua
+++ b/server-beta/src/vm/eachField.lua
@@ -1,5 +1,5 @@
 local guide = require 'parser.guide'
-local searcher = require 'searcher.searcher'
+local vm    = require 'vm.vm'
 
 local function ofTabel(value, callback)
     for _, field in ipairs(value) do
@@ -67,9 +67,9 @@ local function ofSpecialArg(source, callback)
         end
     elseif name == 'setmetatable' then
         if args[1] == source and args[2] then
-            searcher.eachField(args[2], function (info)
+            vm.eachField(args[2], function (info)
                 if info.key == 's|__index' and info.value then
-                    searcher.eachField(info.value, callback)
+                    vm.eachField(info.value, callback)
                 end
             end)
         end
@@ -108,7 +108,7 @@ local function ofVar(source, callback)
 end
 
 local function eachField(source, callback)
-    searcher.eachRef(source, function (info)
+    vm.eachRef(source, function (info)
         local src = info.source
         if src.tag == '_ENV' then
             if src.ref then
@@ -129,20 +129,20 @@ local function eachField(source, callback)
 end
 
 --- 获取所有的field
-function searcher.eachField(source, callback)
-    local cache = searcher.cache.eachField[source]
+function vm.eachField(source, callback)
+    local cache = vm.cache.eachField[source]
     if cache then
         for i = 1, #cache do
             callback(cache[i])
         end
         return
     end
-    local unlock = searcher.lock('eachField', source)
+    local unlock = vm.lock('eachField', source)
     if not unlock then
         return
     end
     cache = {}
-    searcher.cache.eachField[source] = cache
+    vm.cache.eachField[source] = cache
     local mark = {}
     eachField(source, function (info)
         local src = info.source
@@ -153,9 +153,9 @@ function searcher.eachField(source, callback)
         cache[#cache+1] = info
     end)
     unlock()
-    searcher.eachRef(source, function (info)
+    vm.eachRef(source, function (info)
         local src = info.source
-        searcher.cache.eachField[src] = cache
+        vm.cache.eachField[src] = cache
     end)
     for i = 1, #cache do
         callback(cache[i])
diff --git a/server-beta/src/searcher/eachRef.lua b/server-beta/src/vm/eachRef.lua
index d8e3bd6f..543a0c09 100644
--- a/server-beta/src/searcher/eachRef.lua
+++ b/server-beta/src/vm/eachRef.lua
@@ -1,10 +1,9 @@
-local guide     = require 'parser.guide'
-local files     = require 'files'
-local workspace = require 'workspace'
-local searcher  = require 'searcher.searcher'
+local guide = require 'parser.guide'
+local files = require 'files'
+local vm    = require 'vm.vm'
 
 local function ofCall(func, index, callback)
-    searcher.eachRef(func, function (info)
+    vm.eachRef(func, function (info)
         local src = info.source
         local returns
         if info.mode == 'main' then
@@ -22,7 +21,7 @@ local function ofCall(func, index, callback)
                         source   = val,
                         mode     = 'return',
                     }
-                    searcher.eachRef(val, callback)
+                    vm.eachRef(val, callback)
                 end
             end
         end
@@ -32,14 +31,14 @@ end
 local function ofCallSelect(call, index, callback)
     local slc = call.parent
     if slc.index == index then
-        searcher.eachRef(slc.parent, callback)
+        vm.eachRef(slc.parent, callback)
         return
     end
     if call.extParent then
         for i = 1, #call.extParent do
             slc = call.extParent[i]
             if slc.index == index then
-                searcher.eachRef(slc.parent, callback)
+                vm.eachRef(slc.parent, callback)
                 return
             end
         end
@@ -53,9 +52,9 @@ local function ofReturn(rtn, index, callback)
     end
     -- 搜索函数调用的第 index 个接收值
     if func.type == 'main' then
-        searcher.eachRef(func, callback)
+        vm.eachRef(func, callback)
     else
-        searcher.eachRef(func, function (info)
+        vm.eachRef(func, function (info)
             local source = info.source
             local call = source.parent
             if not call or call.type ~= 'call' then
@@ -72,14 +71,14 @@ local function ofSpecialCall(call, func, index, callback)
         if index == 1 then
             local args = call.args
             if args[1] then
-                searcher.eachRef(args[1], callback)
+                vm.eachRef(args[1], callback)
             end
             if args[2] then
-                searcher.eachField(args[2], function (info)
+                vm.eachField(args[2], function (info)
                     if info.key == 's|__index' then
-                        searcher.eachRef(info.source, callback)
+                        vm.eachRef(info.source, callback)
                         if info.value then
-                            searcher.eachRef(info.value, callback)
+                            vm.eachRef(info.value, callback)
                         end
                     end
                 end)
@@ -87,7 +86,7 @@ local function ofSpecialCall(call, func, index, callback)
         end
     elseif name == 'require' then
         if index == 1 then
-            local result = searcher.getLinkUris(call)
+            local result = vm.getLinkUris(call)
             if result then
                 local myUri = guide.getRoot(call).uri
                 for _, uri in ipairs(result) do
@@ -126,7 +125,7 @@ local function ofValue(value, callback)
         }
     end
 
-    searcher.eachRef(value, callback)
+    vm.eachRef(value, callback)
 
     local parent = value.parent
     if parent.type == 'local'
@@ -138,7 +137,7 @@ local function ofValue(value, callback)
     or parent.type == 'tablefield'
     or parent.type == 'tableindex' then
         if parent.value == value then
-            searcher.eachRef(parent, callback)
+            vm.eachRef(parent, callback)
         end
     end
     if parent.type == 'return' then
@@ -156,7 +155,7 @@ local function ofSelf(loc, callback)
     -- 1. 当前方法定义时的对象（mt）
     local method = loc.method
     local node   = method.node
-    searcher.eachRef(node, callback)
+    vm.eachRef(node, callback)
     -- 2. 调用该方法时传入的对象
 end
 
@@ -173,7 +172,7 @@ local function asValue(source, callback)
                     local call = args.parent
                     local func = call.node
                     if func.special == 'setmetatable' then
-                        searcher.eachRef(args[1], callback)
+                        vm.eachRef(args[1], callback)
                     end
                 end
             end
@@ -210,11 +209,11 @@ local function asArg(source, callback)
         if name == 'setmetatable' then
             if parent[1] == source then
                 if parent[2] then
-                    searcher.eachField(parent[2], function (info)
+                    vm.eachField(parent[2], function (info)
                         if info.key == 's|__index' then
-                            searcher.eachRef(info.source, callback)
+                            vm.eachRef(info.source, callback)
                             if info.value then
-                                searcher.eachRef(info.value, callback)
+                                vm.eachRef(info.value, callback)
                             end
                         end
                     end)
@@ -222,7 +221,7 @@ local function asArg(source, callback)
             end
             local recvs = getCallRecvs(call)
             if recvs and recvs[1] then
-                searcher.eachRef(recvs[1], callback)
+                vm.eachRef(recvs[1], callback)
             end
         end
     end
@@ -293,7 +292,7 @@ local function ofGlobal(source, callback)
         local uris = files.findGlobals(key)
         for _, uri in ipairs(uris) do
             local ast = files.getAst(uri)
-            local globals = searcher.getGlobals(ast.ast)
+            local globals = vm.getGlobals(ast.ast)
             if globals[key] then
                 for _, info in ipairs(globals[key]) do
                     callback(info)
@@ -304,7 +303,7 @@ local function ofGlobal(source, callback)
             end
         end
     else
-        searcher.eachField(node, function (info)
+        vm.eachField(node, function (info)
             if key == info.key then
                 callback {
                     source   = info.source,
@@ -324,7 +323,7 @@ local function ofField(source, callback)
     if parent.type == 'tablefield'
     or parent.type == 'tableindex' then
         local tbl = parent.parent
-        searcher.eachField(tbl, function (info)
+        vm.eachField(tbl, function (info)
             if key == info.key then
                 callback {
                     source   = info.source,
@@ -337,7 +336,7 @@ local function ofField(source, callback)
         end)
     else
         local node = parent.node
-        searcher.eachField(node, function (info)
+        vm.eachField(node, function (info)
             if key == info.key then
                 callback {
                     source   = info.source,
@@ -399,7 +398,7 @@ local function ofMain(source, callback)
     for _, uri in ipairs(uris) do
         local ast = files.getAst(uri)
         if ast then
-            local links = searcher.getLinks(ast.ast)
+            local links = vm.getLinks(ast.ast)
             if links then
                 for linkUri, calls in pairs(links) do
                     if files.eq(linkUri, myUri) then
@@ -450,13 +449,13 @@ local function eachRef(source, callback)
 end
 
 --- 判断2个对象是否拥有相同的引用
-function searcher.isSameRef(a, b)
-    local cache = searcher.cache.eachRef[a]
+function vm.isSameRef(a, b)
+    local cache = vm.cache.eachRef[a]
     if cache then
         -- 相同引用的source共享同一份cache
-        return cache == searcher.cache.eachRef[b]
+        return cache == vm.cache.eachRef[b]
     else
-        return searcher.eachRef(a, function (info)
+        return vm.eachRef(a, function (info)
             if info.source == b then
                 return true
             end
@@ -465,8 +464,8 @@ function searcher.isSameRef(a, b)
 end
 
 --- 获取所有的引用
-function searcher.eachRef(source, callback)
-    local cache = searcher.cache.eachRef[source]
+function vm.eachRef(source, callback)
+    local cache = vm.cache.eachRef[source]
     if cache then
         for i = 1, #cache do
             local res = callback(cache[i])
@@ -476,12 +475,12 @@ function searcher.eachRef(source, callback)
         end
         return
     end
-    local unlock = searcher.lock('eachRef', source)
+    local unlock = vm.lock('eachRef', source)
     if not unlock then
         return
     end
     cache = {}
-    searcher.cache.eachRef[source] = cache
+    vm.cache.eachRef[source] = cache
     local mark = {}
     eachRef(source, function (info)
         local src = info.source
@@ -494,7 +493,7 @@ function searcher.eachRef(source, callback)
     unlock()
     for i = 1, #cache do
         local src = cache[i].source
-        searcher.cache.eachRef[src] = cache
+        vm.cache.eachRef[src] = cache
     end
     for i = 1, #cache do
         local res = callback(cache[i])
diff --git a/server-beta/src/vm/getGlobal.lua b/server-beta/src/vm/getGlobal.lua
new file mode 100644
index 00000000..373c907e
--- /dev/null
+++ b/server-beta/src/vm/getGlobal.lua
@@ -0,0 +1,6 @@
+local vm = require 'vm.vm'
+
+function vm.getGlobal(source)
+    vm.getGlobals(source)
+    return vm.cache.getGlobal[source]
+end
diff --git a/server-beta/src/searcher/getGlobals.lua b/server-beta/src/vm/getGlobals.lua
index 13e69e16..699dd270 100644
--- a/server-beta/src/searcher/getGlobals.lua
+++ b/server-beta/src/vm/getGlobals.lua
@@ -1,11 +1,11 @@
 local guide = require 'parser.guide'
-local searcher = require 'searcher.searcher'
+local vm    = require 'vm.vm'
 
 local function getGlobals(root)
     local env  = guide.getENV(root)
     local cache = {}
     local mark = {}
-    searcher.eachField(env, function (info)
+    vm.eachField(env, function (info)
         local src = info.source
         if mark[src] then
             return
@@ -23,23 +23,23 @@ local function getGlobals(root)
         end
         cache[name][#cache[name]+1] = info
         cache[name].mode[info.mode] = true
-        searcher.cache.getGlobal[src] = name
+        vm.cache.getGlobal[src] = name
     end)
     return cache
 end
 
-function searcher.getGlobals(source)
+function vm.getGlobals(source)
     source = guide.getRoot(source)
-    local cache = searcher.cache.getGlobals[source]
+    local cache = vm.cache.getGlobals[source]
     if cache ~= nil then
         return cache
     end
-    local unlock = searcher.lock('getGlobals', source)
+    local unlock = vm.lock('getGlobals', source)
     if not unlock then
         return nil
     end
     cache = getGlobals(source) or false
-    searcher.cache.getGlobals[source] = cache
+    vm.cache.getGlobals[source] = cache
     unlock()
     return cache
 end
diff --git a/server-beta/src/searcher/getLibrary.lua b/server-beta/src/vm/getLibrary.lua
index a2620295..08f015a6 100644
--- a/server-beta/src/searcher/getLibrary.lua
+++ b/server-beta/src/vm/getLibrary.lua
@@ -1,9 +1,9 @@
-local searcher = require 'searcher.searcher'
-local library  = require 'library'
-local guide    = require 'parser.guide'
+local vm      = require 'vm.vm'
+local library = require 'library'
+local guide   = require 'parser.guide'
 
 local function checkStdLibrary(source)
-    local globalName = searcher.getGlobal(source)
+    local globalName = vm.getGlobal(source)
     if not globalName then
         return nil
     end
@@ -18,7 +18,7 @@ local function getLibrary(source)
     if lib then
         return lib
     end
-    return searcher.eachRef(source, function (info)
+    return vm.eachRef(source, function (info)
         local src = info.source
         if  src.type ~= 'getfield'
         and src.type ~= 'getmethod'
@@ -26,7 +26,7 @@ local function getLibrary(source)
             return
         end
         local node = src.node
-        local nodeGlobalName = searcher.getGlobal(node)
+        local nodeGlobalName = vm.getGlobal(node)
         if not nodeGlobalName then
             return
         end
@@ -44,17 +44,17 @@ local function getLibrary(source)
     end)
 end
 
-function searcher.getLibrary(source)
-    local cache = searcher.cache.getLibrary[source]
+function vm.getLibrary(source)
+    local cache = vm.cache.getLibrary[source]
     if cache ~= nil then
         return cache
     end
-    local unlock = searcher.lock('getLibrary', source)
+    local unlock = vm.lock('getLibrary', source)
     if not unlock then
         return
     end
     cache = getLibrary(source) or false
-    searcher.cache.getLibrary[source] = cache
+    vm.cache.getLibrary[source] = cache
     unlock()
     return cache
 end
diff --git a/server-beta/src/searcher/getLinks.lua b/server-beta/src/vm/getLinks.lua
index 3e204e1f..6875771f 100644
--- a/server-beta/src/searcher/getLinks.lua
+++ b/server-beta/src/vm/getLinks.lua
@@ -1,5 +1,5 @@
 local guide = require 'parser.guide'
-local searcher = require 'searcher.searcher'
+local vm    = require 'vm.vm'
 
 local function getLinks(root)
     local cache = {}
@@ -7,7 +7,7 @@ local function getLinks(root)
     guide.eachSpecialOf(root, 'require', function (source)
         local call = source.parent
         if call.type == 'call' then
-            local uris = searcher.getLinkUris(call)
+            local uris = vm.getLinkUris(call)
             if uris then
                 ok = true
                 for i = 1, #uris do
@@ -26,13 +26,13 @@ local function getLinks(root)
     return cache
 end
 
-function searcher.getLinks(source)
+function vm.getLinks(source)
     source = guide.getRoot(source)
-    local cache = searcher.cache.getLinks[source]
+    local cache = vm.cache.getLinks[source]
     if cache ~= nil then
         return cache
     end
-    local unlock = searcher.lock('getLinks', source)
+    local unlock = vm.lock('getLinks', source)
     if not unlock then
         return nil
     end
@@ -42,7 +42,7 @@ function searcher.getLinks(source)
     if passed > 0.1 then
         log.warn(('getLinks takes [%.3f] sec!'):format(passed))
     end
-    searcher.cache.getLinks[source] = cache
+    vm.cache.getLinks[source] = cache
     unlock()
     return cache
 end
diff --git a/server-beta/src/searcher/getValue.lua b/server-beta/src/vm/getValue.lua
index ae28b212..b13d822d 100644
--- a/server-beta/src/searcher/getValue.lua
+++ b/server-beta/src/vm/getValue.lua
@@ -1,6 +1,4 @@
-local searcher = require 'searcher.searcher'
-local guide    = require 'parser.guide'
-local config   = require 'config'
+local vm = require 'vm.vm'
 
 local typeSort = {
     ['boolean']  = 1,
@@ -77,7 +75,7 @@ local function checkUnary(source)
     end
     local op = source.op
     if op.type == 'not' then
-        local isTrue = searcher.isTrue(source[1])
+        local isTrue = vm.isTrue(source[1])
         local value = nil
         if isTrue == true then
             value = false
@@ -95,14 +93,14 @@ local function checkUnary(source)
             source = source,
         }
     elseif op.type == '~' then
-        local l = searcher.getLiteral(source[1], 'integer')
+        local l = vm.getLiteral(source[1], 'integer')
         return {
             type   = 'integer',
             value  = l and ~l or nil,
             source = source,
         }
     elseif op.type == '-' then
-        local v = searcher.getLiteral(source[1], 'integer')
+        local v = vm.getLiteral(source[1], 'integer')
         if v then
             return {
                 type   = 'integer',
@@ -110,7 +108,7 @@ local function checkUnary(source)
                 source = source,
             }
         end
-        v = searcher.getLiteral(source[1], 'number')
+        v = vm.getLiteral(source[1], 'number')
         return {
             type   = 'number',
             value  = v and -v or nil,
@@ -125,31 +123,31 @@ local function checkBinary(source)
     end
     local op = source.op
     if op.type == 'and' then
-        local isTrue = searcher.checkTrue(source[1])
+        local isTrue = vm.checkTrue(source[1])
         if isTrue == true then
-            return searcher.getValue(source[2])
+            return vm.getValue(source[2])
         elseif isTrue == false then
-            return searcher.getValue(source[1])
+            return vm.getValue(source[1])
         else
             return merge(
-                searcher.getValue(source[1]),
-                searcher.getValue(source[2])
+                vm.getValue(source[1]),
+                vm.getValue(source[2])
             )
         end
     elseif op.type == 'or' then
-        local isTrue = searcher.checkTrue(source[1])
+        local isTrue = vm.checkTrue(source[1])
         if isTrue == true then
-            return searcher.getValue(source[1])
+            return vm.getValue(source[1])
         elseif isTrue == false then
-            return searcher.getValue(source[2])
+            return vm.getValue(source[2])
         else
             return merge(
-                searcher.getValue(source[1]),
-                searcher.getValue(source[2])
+                vm.getValue(source[1]),
+                vm.getValue(source[2])
             )
         end
     elseif op.type == '==' then
-        local value = searcher.isSameValue(source[1], source[2])
+        local value = vm.isSameValue(source[1], source[2])
         if value ~= nil then
             return {
                 type   = 'boolean',
@@ -157,7 +155,7 @@ local function checkBinary(source)
                 source = source,
             }
         end
-        local isSame = searcher.isSameRef(source[1], source[2])
+        local isSame = vm.isSameRef(source[1], source[2])
         if isSame == true then
             value = true
         else
@@ -169,7 +167,7 @@ local function checkBinary(source)
             source = source,
         }
     elseif op.type == '~=' then
-        local value = searcher.isSameValue(source[1], source[2])
+        local value = vm.isSameValue(source[1], source[2])
         if value ~= nil then
             return {
                 type   = 'boolean',
@@ -177,7 +175,7 @@ local function checkBinary(source)
                 source = source,
             }
         end
-        local isSame = searcher.isSameRef(source[1], source[2])
+        local isSame = vm.isSameRef(source[1], source[2])
         if isSame == true then
             value = false
         else
@@ -214,8 +212,8 @@ local function checkBinary(source)
     or op.type == '*'
     or op.type == '%'
     or op.type == '//' then
-        if  hasType('integer', searcher.getValue(source[1]))
-        and hasType('integer', searcher.getValue(source[2])) then
+        if  hasType('integer', vm.getValue(source[1]))
+        and hasType('integer', vm.getValue(source[2])) then
             return 'integer'
         else
             return 'number'
@@ -225,7 +223,7 @@ end
 
 local function checkValue(source)
     if source.value then
-        return searcher.getValue(source.value)
+        return vm.getValue(source.value)
     end
 end
 
@@ -258,9 +256,9 @@ local function checkNext(result, source)
 end
 
 local function checkDef(result, source)
-    searcher.eachDef(source, function (info)
+    vm.eachDef(source, function (info)
         local src = info.source
-        local tp  = searcher.getValue(src)
+        local tp  = vm.getValue(src)
         if tp then
             merge(result, tp)
         end
@@ -298,8 +296,8 @@ local function getValue(source)
     end
 end
 
-function searcher.checkTrue(source)
-    local values = searcher.getValue(source)
+function vm.checkTrue(source)
+    local values = vm.getValue(source)
     if not values then
         return
     end
@@ -333,8 +331,8 @@ function searcher.checkTrue(source)
 end
 
 --- 拥有某个类型的值
-function searcher.eachValueType(source, type, callback)
-    local values = searcher.getValue(source)
+function vm.eachValueType(source, type, callback)
+    local values = vm.getValue(source)
     if not values then
         return
     end
@@ -350,8 +348,8 @@ function searcher.eachValueType(source, type, callback)
 end
 
 --- 获取特定类型的字面量值
-function searcher.getLiteral(source, type)
-    local values = searcher.getValue(source)
+function vm.getLiteral(source, type)
+    local values = vm.getValue(source)
     if not values then
         return nil
     end
@@ -364,9 +362,9 @@ function searcher.getLiteral(source, type)
     return nil
 end
 
-function searcher.isSameValue(a, b)
-    local valuesA = searcher.getValue(a)
-    local valuesB = searcher.getValue(b)
+function vm.isSameValue(a, b)
+    local valuesA = vm.getValue(a)
+    local valuesB = vm.getValue(b)
     if valuesA == valuesB and valuesA ~= nil then
         return true
     end
@@ -396,8 +394,8 @@ function searcher.isSameValue(a, b)
     return true
 end
 
-function searcher.typeInference(source)
-    local values = searcher.getValue(source)
+function vm.typeInference(source)
+    local values = vm.getValue(source)
     if not values then
         return 'any'
     end
@@ -435,20 +433,20 @@ function searcher.typeInference(source)
     return table.concat(types, '|')
 end
 
-function searcher.getValue(source)
+function vm.getValue(source)
     if not source then
         return
     end
-    local cache = searcher.cache.getValue[source]
+    local cache = vm.cache.getValue[source]
     if cache ~= nil then
         return cache
     end
-    local unlock = searcher.lock('getValue', source)
+    local unlock = vm.lock('getValue', source)
     if not unlock then
         return
     end
     cache = getValue(source) or false
-    searcher.cache.getValue[source] = cache
+    vm.cache.getValue[source] = cache
     unlock()
     return cache
 end
diff --git a/server-beta/src/vm/init.lua b/server-beta/src/vm/init.lua
new file mode 100644
index 00000000..bf63db1d
--- /dev/null
+++ b/server-beta/src/vm/init.lua
@@ -0,0 +1,10 @@
+local vm = require 'vm.vm'
+require 'vm.eachField'
+require 'vm.eachRef'
+require 'vm.eachDef'
+require 'vm.getGlobals'
+require 'vm.getLinks'
+require 'vm.getGlobal'
+require 'vm.getLibrary'
+require 'vm.getValue'
+return vm
diff --git a/server-beta/src/searcher/special.lua b/server-beta/src/vm/special.lua
index e69de29b..e69de29b 100644
--- a/server-beta/src/searcher/special.lua
+++ b/server-beta/src/vm/special.lua
diff --git a/server-beta/src/searcher/searcher.lua b/server-beta/src/vm/vm.lua
index e47e8c54..23a691df 100644
--- a/server-beta/src/searcher/searcher.lua
+++ b/server-beta/src/vm/vm.lua
@@ -18,7 +18,7 @@ local specials = {
     ['loadfile']     = true,
 }
 
----@class searcher
+---@class vm
 local m = {}
 
 function m.lock(tp, source)