diff --git a/unity/Assets/Duktape/Editor/AbstractBindingProcess.cs b/unity/Assets/Duktape/Editor/AbstractBindingProcess.cs
index 9ab3abc..26647ca 100644
--- a/unity/Assets/Duktape/Editor/AbstractBindingProcess.cs
+++ b/unity/Assets/Duktape/Editor/AbstractBindingProcess.cs
@@ -1,62 +1,62 @@
-using System;
-using System.IO;
-using System.Collections.Generic;
-using System.Reflection;
-
-namespace Duktape
-{
-    using UnityEngine;
-    using UnityEditor;
-
-    public abstract class AbstractBindingProcess : IBindingProcess
-    {
-        public virtual void OnInitialize(BindingManager bindingManager)
-        {
-        }
-
-        public virtual void OnPreCollectAssemblies(BindingManager bindingManager)
-        {
-        }
-
-        public virtual void OnPostCollectAssemblies(BindingManager bindingManager)
-        {
-        }
-
-        public virtual void OnPostExporting(BindingManager bindingManager)
-        {
-        }
-
-        public virtual void OnPreCollectTypes(BindingManager bindingManager)
-        {
-        }
-
-        public virtual void OnPostCollectTypes(BindingManager bindingManager)
-        {
-        }
-
-        public virtual bool OnExportingType(BindingManager bindingManager, Type type)
-        {
-            return false;
-        }
-
-        public virtual void OnPreGenerateType(BindingManager bindingManager, TypeBindingInfo bindingInfo)
-        {
-        }
-
-        public virtual void OnPostGenerateType(BindingManager bindingManager, TypeBindingInfo bindingInfo)
-        {
-        }
-
-        public virtual void OnPreGenerateDelegate(BindingManager bindingManager, DelegateBindingInfo bindingInfo)
-        {
-        }
-
-        public virtual void OnPostGenerateDelegate(BindingManager bindingManager, DelegateBindingInfo bindingInfo)
-        {
-        }
-
-        public virtual void OnCleanup(BindingManager bindingManager)
-        {
-        }
-    }
-}
+using System;
+using System.IO;
+using System.Collections.Generic;
+using System.Reflection;
+
+namespace Duktape
+{
+    using UnityEngine;
+    using UnityEditor;
+
+    public abstract class AbstractBindingProcess : IBindingProcess
+    {
+        public virtual void OnInitialize(BindingManager bindingManager)
+        {
+        }
+
+        public virtual void OnPreCollectAssemblies(BindingManager bindingManager)
+        {
+        }
+
+        public virtual void OnPostCollectAssemblies(BindingManager bindingManager)
+        {
+        }
+
+        public virtual void OnPostExporting(BindingManager bindingManager)
+        {
+        }
+
+        public virtual void OnPreCollectTypes(BindingManager bindingManager)
+        {
+        }
+
+        public virtual void OnPostCollectTypes(BindingManager bindingManager)
+        {
+        }
+
+        public virtual bool OnExportingType(BindingManager bindingManager, Type type)
+        {
+            return false;
+        }
+
+        public virtual void OnPreGenerateType(BindingManager bindingManager, TypeBindingInfo bindingInfo)
+        {
+        }
+
+        public virtual void OnPostGenerateType(BindingManager bindingManager, TypeBindingInfo bindingInfo)
+        {
+        }
+
+        public virtual void OnPreGenerateDelegate(BindingManager bindingManager, DelegateBindingInfo bindingInfo)
+        {
+        }
+
+        public virtual void OnPostGenerateDelegate(BindingManager bindingManager, DelegateBindingInfo bindingInfo)
+        {
+        }
+
+        public virtual void OnCleanup(BindingManager bindingManager)
+        {
+        }
+    }
+}
diff --git a/unity/Assets/Duktape/Editor/BindingManager.cs b/unity/Assets/Duktape/Editor/BindingManager.cs
index a44bf17..3ac5c11 100644
--- a/unity/Assets/Duktape/Editor/BindingManager.cs
+++ b/unity/Assets/Duktape/Editor/BindingManager.cs
@@ -1,1265 +1,1269 @@
-using System;
-using System.IO;
-using System.Collections.Generic;
-using System.Reflection;
-using System.Text.RegularExpressions;
-
-namespace Duktape
-{
-    using UnityEngine;
-    using UnityEditor;
-
-    public partial class BindingManager
-    {
-        public DateTime dateTime;
-        public TextGenerator log;
-        public Prefs prefs;
-
-        private List<string> _implicitAssemblies = new List<string>(); // 默认导出所有类型
-        private List<string> _explicitAssemblies = new List<string>(); // 仅导出指定需要导出的类型
-
-        private HashSet<Type> blacklist;
-        private HashSet<Type> whitelist;
-        private List<string> typePrefixBlacklist;
-        private Dictionary<Type, TypeBindingInfo> exportedTypes = new Dictionary<Type, TypeBindingInfo>();
-        private Dictionary<Type, DelegateBindingInfo> exportedDelegates = new Dictionary<Type, DelegateBindingInfo>();
-        private Dictionary<Type, Type> redirectDelegates = new Dictionary<Type, Type>();
-        // 类型修改
-        private Dictionary<Type, TypeTransform> typesTarnsform = new Dictionary<Type, TypeTransform>();
-        private List<string> outputFiles = new List<string>();
-        private List<string> removedFiles = new List<string>();
-
-        private Dictionary<Type, List<string>> _tsTypeNameMap = new Dictionary<Type, List<string>>();
-        private Dictionary<Type, string> _csTypeNameMap = new Dictionary<Type, string>();
-        private Dictionary<string, string> _csTypeNameMapS = new Dictionary<string, string>();
-        private static HashSet<string> _tsKeywords = new HashSet<string>();
-
-        // 自定义的处理流程
-        private List<IBindingProcess> _bindingProcess = new List<IBindingProcess>();
-
-        static BindingManager()
-        {
-            AddTSKeywords(
-                "function",
-                "interface",
-                "class",
-                "let",
-                "break",
-                "as",
-                "any",
-                "switch",
-                "case",
-                "if",
-                "throw",
-                "else",
-                "var",
-                "number",
-                "string",
-                "get",
-                "module",
-                // "type",
-                "instanceof",
-                "typeof",
-                "public",
-                "private",
-                "enum",
-                "export",
-                "finally",
-                "for",
-                "while",
-                "void",
-                "null",
-                "super",
-                "this",
-                "new",
-                "in",
-                "extends",
-                "static",
-                "package",
-                "implements",
-                "interface",
-                "continue",
-                "yield",
-                "const"
-            );
-        }
-
-        public BindingManager(Prefs prefs)
-        {
-            this.prefs = prefs;
-            this.dateTime = DateTime.Now;
-            var tab = prefs.tab;
-            var newline = prefs.newline;
-            typePrefixBlacklist = prefs.typePrefixBlacklist;
-            log = new TextGenerator(newline, tab);
-            blacklist = new HashSet<Type>(new Type[]
-            {
-                typeof(AOT.MonoPInvokeCallbackAttribute),
-            });
-            whitelist = new HashSet<Type>(new Type[]
-            {
-            });
-
-            TransformType(typeof(GameObject))
-                // .AddRedirectMethod("AddComponent", "_AddComponent")
-                // .AddRedirectMethod("GetComponent", "_GetComponent")
-                // .AddRedirectMethod("GetComponentInChildren", "_GetComponentInChildren")
-                // .AddRedirectMethod("GetComponentInParent", "_GetComponentInParent")
-                // .AddRedirectMethod("GetComponents", "_GetComponents")
-                // .AddRedirectMethod("GetComponentsInChildren", "_GetComponentsInChildren")
-                // .AddRedirectMethod("GetComponentsInParent", "_GetComponentsInParent")
-                .AddTSMethodDeclaration("AddComponent<T extends UnityEngine.Component>(type: { new(): T }): T",
-                    "AddComponent", typeof(Type))
-                .AddTSMethodDeclaration("GetComponent<T extends UnityEngine.Component>(type: { new(): T }): T",
-                    "GetComponent", typeof(Type))
-                .AddTSMethodDeclaration("GetComponentInChildren<T extends UnityEngine.Component>(type: { new(): T }, includeInactive: boolean): T",
-                    "GetComponentInChildren", typeof(Type), typeof(bool))
-                .AddTSMethodDeclaration("GetComponentInChildren<T extends UnityEngine.Component>(type: { new(): T }): T",
-                    "GetComponentInChildren", typeof(Type))
-                .AddTSMethodDeclaration("GetComponentInParent<T extends UnityEngine.Component>(type: { new(): T }): T",
-                    "GetComponentInParent", typeof(Type))
-                // .AddTSMethodDeclaration("GetComponents<T extends UnityEngine.Component>(type: { new(): T }, results: any): void", 
-                //     "GetComponents", typeof(Type))
-                .AddTSMethodDeclaration("GetComponents<T extends UnityEngine.Component>(type: { new(): T }): T[]",
-                    "GetComponents", typeof(Type))
-                .AddTSMethodDeclaration("GetComponentsInChildren<T extends UnityEngine.Component>(type: { new(): T }, includeInactive: boolean): T[]",
-                    "GetComponentsInChildren", typeof(Type), typeof(bool))
-                .AddTSMethodDeclaration("GetComponentsInChildren<T extends UnityEngine.Component>(type: { new(): T }): T[]",
-                    "GetComponentsInChildren", typeof(Type))
-                .AddTSMethodDeclaration("GetComponentsInParent<T extends UnityEngine.Component>(type: { new(): T }, includeInactive: boolean): T[]",
-                    "GetComponentsInParent", typeof(Type), typeof(bool))
-                .AddTSMethodDeclaration("GetComponentsInParent<T extends UnityEngine.Component>(type: { new(): T }): T[]",
-                    "GetComponentsInParent", typeof(Type))
-            ;
-
-            // fix d.ts, some C# classes use explicit implemented interface method
-            SetTypeBlocked(typeof(UnityEngine.ILogHandler));
-            SetTypeBlocked(typeof(UnityEngine.ISerializationCallbackReceiver));
-
-            TransformType(typeof(object))
-                .RenameTSMethod("$Equals", "Equals", typeof(object))
-                .RenameTSMethod("$Equals", "Equals", typeof(object), typeof(object))
-            ;
-
-            TransformType(typeof(Vector3))
-                .SetMethodBlocked("SqrMagnitude", typeof(Vector3))
-                .SetMethodBlocked("Magnitude", typeof(Vector3))
-                .AddTSMethodDeclaration("static Add(a: Vector3, b: Vector3): Vector3")
-                .AddTSMethodDeclaration("static Sub(a: Vector3, b: Vector3): Vector3")
-                .AddTSMethodDeclaration("static Mul(a: Vector3, b: Vector3): Vector3")
-                .AddTSMethodDeclaration("static Div(a: Vector3, b: Vector3): Vector3")
-                .AddTSMethodDeclaration("static Equals(a: Vector3, b: Vector3): boolean")
-                .AddTSMethodDeclaration("Equals(b: Vector3): boolean")
-                .AddTSMethodDeclaration("Inverse(): Vector3")
-                .AddTSMethodDeclaration("Clone(): Vector3")
-            ;
-
-            TransformType(typeof(Vector2))
-                .SetMethodBlocked("SqrMagnitude")
-                .SetMethodBlocked("SqrMagnitude", typeof(Vector2))
-                .AddTSMethodDeclaration("static Add(a: Vector2, b: Vector2): Vector2")
-                .AddTSMethodDeclaration("static Sub(a: Vector2, b: Vector2): Vector2")
-                .AddTSMethodDeclaration("static Mul(a: Vector2, b: Vector2): Vector2")
-                .AddTSMethodDeclaration("static Div(a: Vector2, b: Vector2): Vector2")
-                .AddTSMethodDeclaration("static Equals(a: Vector2, b: Vector2): boolean")
-                .AddTSMethodDeclaration("Equals(b: Vector2): boolean")
-                .AddTSMethodDeclaration("Inverse(): Vector2")
-                .AddTSMethodDeclaration("Clone(): Vector2")
-            ;
-
-            TransformType(typeof(Quaternion))
-                .AddTSMethodDeclaration("Clone(): Quaternion")
-            ;
-            // SetTypeBlocked(typeof(RendererExtensions));
-            SetTypeBlocked(typeof(UnityEngine.UI.ILayoutGroup));
-            SetTypeBlocked(typeof(UnityEngine.UI.ILayoutSelfController));
-            TransformType(typeof(UnityEngine.UI.PositionAsUV1))
-                .SetMemberBlocked("ModifyMesh");
-            TransformType(typeof(UnityEngine.UI.Shadow))
-                .SetMemberBlocked("ModifyMesh");
-            TransformType(typeof(UnityEngine.UI.Outline))
-                .SetMemberBlocked("ModifyMesh");
-
-            // editor 使用的 .net 与 player 所用存在差异, 这里屏蔽不存在的成员
-            TransformType(typeof(double))
-                .SetMemberBlocked("IsFinite")
-            ;
-            TransformType(typeof(float))
-                .SetMemberBlocked("IsFinite")
-            ;
-            TransformType(typeof(string))
-                .SetMemberBlocked("Chars")
-            ;
-
-            AddTSTypeNameMap(typeof(sbyte), "number");
-            AddTSTypeNameMap(typeof(byte), "number");
-            AddTSTypeNameMap(typeof(int), "number");
-            AddTSTypeNameMap(typeof(uint), "number");
-            AddTSTypeNameMap(typeof(short), "number");
-            AddTSTypeNameMap(typeof(ushort), "number");
-            AddTSTypeNameMap(typeof(long), "number");
-            AddTSTypeNameMap(typeof(ulong), "number");
-            AddTSTypeNameMap(typeof(float), "number");
-            AddTSTypeNameMap(typeof(double), "number");
-            AddTSTypeNameMap(typeof(bool), "boolean");
-            AddTSTypeNameMap(typeof(string), "string");
-            AddTSTypeNameMap(typeof(char), "string");
-            AddTSTypeNameMap(typeof(void), "void");
-            AddTSTypeNameMap(typeof(LayerMask), "UnityEngine.LayerMask", "number");
-            AddTSTypeNameMap(typeof(Color), "UnityEngine.Color");
-            AddTSTypeNameMap(typeof(Color32), "UnityEngine.Color32");
-            AddTSTypeNameMap(typeof(Vector2), "UnityEngine.Vector2");
-            AddTSTypeNameMap(typeof(Vector2Int), "UnityEngine.Vector2Int");
-            AddTSTypeNameMap(typeof(Vector3), "UnityEngine.Vector3"); // 已优化, 在 VM 初始化时替换为 DuktapeJS.Vector3
-            AddTSTypeNameMap(typeof(Vector3Int), "UnityEngine.Vector3Int");
-            AddTSTypeNameMap(typeof(Vector4), "UnityEngine.Vector4");
-            AddTSTypeNameMap(typeof(Quaternion), "UnityEngine.Quaternion");
-            AddTSTypeNameMap(typeof(DuktapeArray), "any[]");
-
-            AddCSTypeNameMap(typeof(sbyte), "sbyte");
-            AddCSTypeNameMap(typeof(byte), "byte");
-            AddCSTypeNameMap(typeof(int), "int");
-            AddCSTypeNameMap(typeof(uint), "uint");
-            AddCSTypeNameMap(typeof(short), "short");
-            AddCSTypeNameMap(typeof(ushort), "ushort");
-            AddCSTypeNameMap(typeof(long), "long");
-            AddCSTypeNameMap(typeof(ulong), "ulong");
-            AddCSTypeNameMap(typeof(float), "float");
-            AddCSTypeNameMap(typeof(double), "double");
-            AddCSTypeNameMap(typeof(bool), "bool");
-            AddCSTypeNameMap(typeof(string), "string");
-            AddCSTypeNameMap(typeof(char), "char");
-            AddCSTypeNameMap(typeof(System.Object), "object");
-            AddCSTypeNameMap(typeof(void), "void");
-
-            Initialize();
-        }
-
-        public void SetTypeBlocked(Type type)
-        {
-            blacklist.Add(type);
-        }
-
-        public bool GetTSMethodDeclaration(MethodBase method, out string code)
-        {
-            var transform = GetTypeTransform(method.DeclaringType);
-            if (transform != null)
-            {
-                return transform.GetTSMethodDeclaration(method, out code);
-            }
-            code = null;
-            return false;
-        }
-
-        public bool GetTSMethodRename(MethodBase method, out string code)
-        {
-            var transform = GetTypeTransform(method.DeclaringType);
-            if (transform != null)
-            {
-                return transform.GetTSMethodRename(method, out code);
-            }
-            code = null;
-            return false;
-        }
-
-        public TypeTransform GetTypeTransform(Type type)
-        {
-            TypeTransform transform;
-            return typesTarnsform.TryGetValue(type, out transform) ? transform : null;
-        }
-
-        public TypeTransform TransformType(Type type)
-        {
-            TypeTransform transform;
-            if (!typesTarnsform.TryGetValue(type, out transform))
-            {
-                typesTarnsform[type] = transform = new TypeTransform(type);
-            }
-            return transform;
-        }
-
-        private static bool _FindFilterBindingProcess(Type type, object l)
-        {
-            return type == typeof(IBindingProcess);
-        }
-
-        private void Initialize()
-        {
-            var assembly = Assembly.Load("Assembly-CSharp-Editor");
-            var types = assembly.GetExportedTypes();
-            for (int i = 0, size = types.Length; i < size; i++)
-            {
-                var type = types[i];
-                if (type.IsAbstract)
-                {
-                    continue;
-                }
-                try
-                {
-                    var interfaces = type.FindInterfaces(_FindFilterBindingProcess, null);
-                    if (interfaces != null && interfaces.Length > 0)
-                    {
-                        var ctor = type.GetConstructor(Type.EmptyTypes);
-                        var inst = ctor.Invoke(null) as IBindingProcess;
-                        inst.OnInitialize(this);
-                        _bindingProcess.Add(inst);
-                        Debug.Log($"add binding process: {type}");
-                        // _bindingProcess.Add
-                    }
-                }
-                catch (Exception exception)
-                {
-                    Debug.LogWarning($"failed to add binding process: {type}\n{exception}");
-                }
-            }
-        }
-
-        // TS: 添加保留字, CS中相关变量名等会自动重命名注册到js中
-        public static void AddTSKeywords(params string[] keywords)
-        {
-            foreach (var keyword in keywords)
-            {
-                _tsKeywords.Add(keyword);
-            }
-        }
-
-        // 指定类型在 ts 声明中的映射名 (可以指定多项)
-        public void AddTSTypeNameMap(Type type, params string[] names)
-        {
-            List<string> list;
-            if (!_tsTypeNameMap.TryGetValue(type, out list))
-            {
-                _tsTypeNameMap[type] = list = new List<string>();
-            }
-            list.AddRange(names);
-        }
-
-        // CS, 添加类型名称映射, 用于简化导出时的常用类型名
-        public void AddCSTypeNameMap(Type type, string name)
-        {
-            _csTypeNameMap[type] = name;
-            _csTypeNameMapS[type.FullName] = name;
-            _csTypeNameMapS[GetCSNamespace(type) + type.Name] = name;
-        }
-
-        // 增加导出类型 (需要在 Collect 阶段进行)
-        //NOTE: editor mscorlib 与 runtime 存在差异, 需要手工 block 差异
-        public TypeTransform AddExportedType(Type type)
-        {
-            if (type.IsGenericTypeDefinition)
-            {
-                whitelist.Add(type);
-                return null;
-            }
-            if (!exportedTypes.ContainsKey(type))
-            {
-                var typeBindingInfo = new TypeBindingInfo(this, type);
-                exportedTypes.Add(type, typeBindingInfo);
-                log.AppendLine($"AddExportedType: {type} Assembly: {type.Assembly}");
-
-                // 检查具体化泛型基类 (如果基类泛型定义在显式导出清单中, 那么导出此具体化类)
-                var baseType = type.BaseType;
-                if (baseType != null && baseType.IsConstructedGenericType)
-                {
-                    if (!IsExportingBlocked(baseType) && IsExportingExplicit(baseType.GetGenericTypeDefinition()))
-                    {
-                        AddExportedType(baseType);
-                    }
-                }
-            }
-            return TransformType(type);
-        }
-
-        public bool RemoveExportedType(Type type)
-        {
-            return exportedTypes.Remove(type);
-        }
-
-        public DelegateBindingInfo GetDelegateBindingInfo(Type type)
-        {
-            Type target;
-            if (redirectDelegates.TryGetValue(type, out target))
-            {
-                type = target;
-            }
-            DelegateBindingInfo delegateBindingInfo;
-            if (exportedDelegates.TryGetValue(type, out delegateBindingInfo))
-            {
-                return delegateBindingInfo;
-            }
-            return null;
-        }
-
-        public static bool ContainsPointer(MethodBase method)
-        {
-            var parameters = method.GetParameters();
-            for (int i = 0, size = parameters.Length; i < size; i++)
-            {
-                var parameterType = parameters[i].ParameterType;
-                if (parameterType.IsPointer)
-                {
-                    return true;
-                }
-            }
-            return false;
-        }
-
-        public static bool IsGenericMethod(MethodBase method)
-        {
-            return method.GetGenericArguments().Length > 0;
-        }
-
-        public static bool IsUnsupported(MethodBase method)
-        {
-            return ContainsPointer(method) || IsGenericMethod(method);
-        }
-
-        // 收集所有 delegate 类型
-        public void CollectDelegate(Type type)
-        {
-            if (type == null || type.BaseType != typeof(MulticastDelegate))
-            {
-                return;
-            }
-            if (!exportedDelegates.ContainsKey(type))
-            {
-                var invoke = type.GetMethod("Invoke");
-                var returnType = invoke.ReturnType;
-                var parameters = invoke.GetParameters();
-                if (ContainsPointer(invoke))
-                {
-                    log.AppendLine("skip unsafe (pointer) delegate: [{0}] {1}", type, invoke);
-                    return;
-                }
-                // 是否存在等价 delegate
-                foreach (var kv in exportedDelegates)
-                {
-                    if (kv.Value.Equals(returnType, parameters))
-                    {
-                        log.AppendLine("skip delegate: {0} && {1}", kv.Value, type);
-                        kv.Value.types.Add(type);
-                        redirectDelegates[type] = kv.Key;
-                        return;
-                    }
-                }
-                var delegateBindingInfo = new DelegateBindingInfo(returnType, parameters);
-                delegateBindingInfo.types.Add(type);
-                exportedDelegates.Add(type, delegateBindingInfo);
-                log.AppendLine("add delegate: {0}", type);
-                for (var i = 0; i < parameters.Length; i++)
-                {
-                    CollectDelegate(parameters[i].ParameterType);
-                }
-            }
-        }
-
-        public bool IsExported(Type type)
-        {
-            return exportedTypes.ContainsKey(type);
-        }
-
-        public string GetTSRefWrap(string name)
-        {
-            return $"DuktapeJS.Ref<{name}>";
-        }
-
-        public string GetTSTypeFullName(ParameterInfo parameter)
-        {
-            var parameterType = parameter.ParameterType;
-            return GetTSTypeFullName(parameterType, parameter.IsOut);
-        }
-
-        // 获取 type 在 typescript 中对应类型名
-        public string GetTSTypeFullName(Type type)
-        {
-            return GetTSTypeFullName(type, false);
-        }
-
-        public string GetTSTypeFullName(Type type, bool isOut)
-        {
-            if (type == null || type == typeof(void))
-            {
-                return "void";
-            }
-            if (type.IsByRef)
-            {
-                if (isOut)
-                {
-                    return $"DuktapeJS.Out<{GetTSTypeFullName(type.GetElementType())}>";
-                }
-                return $"DuktapeJS.Ref<{GetTSTypeFullName(type.GetElementType())}>";
-            }
-            List<string> names;
-            if (_tsTypeNameMap.TryGetValue(type, out names))
-            {
-                return names.Count > 1 ? $"({String.Join(" | ", names)})" : names[0];
-            }
-            if (type.IsArray)
-            {
-                if (type.GetElementType() == typeof(byte))
-                {
-                    return "Buffer";
-                }
-                var elementType = type.GetElementType();
-                return GetTSTypeFullName(elementType) + "[]";
-            }
-            var info = GetExportedType(type);
-            if (info != null)
-            {
-                return info.jsFullName;
-            }
-            if (type.BaseType == typeof(MulticastDelegate))
-            {
-                var delegateBindingInfo = GetDelegateBindingInfo(type);
-                if (delegateBindingInfo != null)
-                {
-                    var nargs = delegateBindingInfo.parameters.Length;
-                    var ret = GetTSTypeFullName(delegateBindingInfo.returnType);
-                    var t_arglist = (nargs > 0 ? ", " : "") + GetTSArglistTypes(delegateBindingInfo.parameters, false);
-                    var v_arglist = GetTSArglistTypes(delegateBindingInfo.parameters, true);
-                    return $"DuktapeJS.Delegate{nargs}<{ret}{t_arglist}> | (({v_arglist}) => {ret})";
-                }
-            }
-            return "any";
-        }
-
-        public string GetCSNamespace(Type type)
-        {
-            return GetCSNamespace(type.Namespace);
-        }
-
-        public string GetCSNamespace(string ns)
-        {
-            return string.IsNullOrEmpty(ns) ? "" : (ns + ".");
-        }
-
-        // 生成参数对应的字符串形式参数列表定义 (typescript)
-        public string GetTSArglistTypes(ParameterInfo[] parameters, bool withVarName)
-        {
-            var size = parameters.Length;
-            var arglist = "";
-            if (size == 0)
-            {
-                return arglist;
-            }
-            for (var i = 0; i < size; i++)
-            {
-                var parameter = parameters[i];
-                var typename = GetTSTypeFullName(parameter.ParameterType);
-                // if (parameter.IsOut && parameter.ParameterType.IsByRef)
-                // {
-                //     arglist += "out ";
-                // }
-                // else if (parameter.ParameterType.IsByRef)
-                // {
-                //     arglist += "ref ";
-                // }
-                if (withVarName)
-                {
-                    arglist += GetTSVariable(parameter.Name) + ": ";
-                }
-                arglist += typename;
-                // arglist += " ";
-                // arglist += parameter.Name;
-                if (i != size - 1)
-                {
-                    arglist += ", ";
-                }
-            }
-            return arglist;
-        }
-
-        public string GetDuktapeGenericError(string err)
-        {
-            return $"DuktapeDLL.duk_generic_error(ctx, \"{err}\");";
-        }
-
-        public string GetDuktapeGetter(Type type)
-        {
-            if (type.IsByRef)
-            {
-                return GetDuktapeGetter(type.GetElementType());
-            }
-            if (type.IsArray)
-            {
-                var elementType = type.GetElementType();
-                return GetDuktapeGetter(elementType) + "_array"; //TODO: 嵌套数组的问题
-            }
-            if (type.IsValueType)
-            {
-                if (type.IsPrimitive)
-                {
-                    return "duk_get_primitive";
-                }
-                if (type.IsEnum)
-                {
-                    return "duk_get_enumvalue";
-                }
-                return "duk_get_structvalue";
-            }
-            if (type == typeof(string))
-            {
-                return "duk_get_primitive";
-            }
-            if (type.BaseType == typeof(MulticastDelegate))
-            {
-                return "duk_get_delegate";
-            }
-            if (type == typeof(Type))
-            {
-                return "duk_get_type";
-            }
-            return "duk_get_classvalue";
-        }
-
-        public string GetDuktapePusher(Type type)
-        {
-            if (type.BaseType == typeof(MulticastDelegate))
-            {
-                return "duk_push_delegate";
-            }
-            if (type.IsValueType)
-            {
-                if (type.IsPrimitive)
-                {
-                    return "duk_push_primitive";
-                }
-                if (type.IsEnum)
-                {
-                    return "duk_push_enumvalue";
-                }
-                return "duk_push_structvalue";
-            }
-            if (type == typeof(string))
-            {
-                return "duk_push_primitive";
-            }
-            return "duk_push_classvalue";
-        }
-
-        public static string GetTSVariable(string name)
-        {
-            if (_tsKeywords.Contains(name))
-            {
-                return name + "_";
-            }
-            return name;
-        }
-
-        // 保证生成一个以 prefix 为前缀, 与参数列表中所有参数名不同的名字
-        public string GetUniqueName(ParameterInfo[] parameters, string prefix)
-        {
-            return GetUniqueName(parameters, prefix, 0);
-        }
-
-        public string GetUniqueName(ParameterInfo[] parameters, string prefix, int index)
-        {
-            var size = parameters.Length;
-            var name = prefix + index;
-            for (var i = 0; i < size; i++)
-            {
-                var parameter = parameters[i];
-                if (parameter.Name == prefix)
-                {
-                    return GetUniqueName(parameters, prefix, index + 1);
-                }
-            }
-            return name;
-        }
-
-        // 获取父类的ts声明 (沿继承链上溯直到存在导出)
-        public string GetTSSuperName(TypeBindingInfo typeBindingInfo)
-        {
-            var super = typeBindingInfo.super;
-            while (super != null)
-            {
-                var superBindingInfo = GetExportedType(super);
-                if (superBindingInfo != null)
-                {
-                    return GetTSTypeFullName(superBindingInfo.type);
-                }
-                super = super.BaseType;
-            }
-            return "";
-        }
-
-        // 获取实现的接口的ts声明
-        public string GetTSInterfacesName(TypeBindingInfo typeBindingInfo)
-        {
-            var interfaces = typeBindingInfo.type.GetInterfaces();
-            var str = "";
-            foreach (var @interface in interfaces)
-            {
-                var interfaceBindingInfo = GetExportedType(@interface);
-                if (interfaceBindingInfo != null)
-                {
-                    // Debug.Log($"{typeBindingInfo.type.Name} implements {@interface.Name}");
-                    str += GetTSTypeFullName(interfaceBindingInfo.type) + ", ";
-                }
-            }
-            if (str.Length > 0)
-            {
-                str = str.Substring(0, str.Length - 2);
-            }
-            return str;
-        }
-
-        // 生成参数对应的字符串形式参数列表 (csharp)
-        public string GetCSArglistDecl(ParameterInfo[] parameters)
-        {
-            var size = parameters.Length;
-            var arglist = "";
-            if (size == 0)
-            {
-                return arglist;
-            }
-            for (var i = 0; i < size; i++)
-            {
-                var parameter = parameters[i];
-                var typename = GetCSTypeFullName(parameter.ParameterType);
-                if (parameter.IsOut && parameter.ParameterType.IsByRef)
-                {
-                    arglist += "out ";
-                }
-                else if (parameter.ParameterType.IsByRef)
-                {
-                    arglist += "ref ";
-                }
-                arglist += typename;
-                arglist += " ";
-                arglist += parameter.Name;
-                if (i != size - 1)
-                {
-                    arglist += ", ";
-                }
-            }
-            return arglist;
-        }
-
-        // 获取 type 在 绑定代码 中对应类型名
-        public string GetCSTypeFullName(Type type)
-        {
-            return GetCSTypeFullName(type, true);
-        }
-
-        public string GetCSTypeFullName(Type type, bool shortName)
-        {
-            // Debug.LogFormat("{0} Array {1} ByRef {2} GetElementType {3}", type, type.IsArray, type.IsByRef, type.GetElementType());
-            if (type.IsGenericType)
-            {
-                var @namespace = string.Empty;
-                var classname = type.Name.Substring(0, type.Name.Length - 2);
-                if (type.IsNested)
-                {
-                    var indexOf = type.FullName.IndexOf("+");
-                    @namespace = type.FullName.Substring(0, indexOf) + ".";
-                }
-                else
-                {
-                    @namespace = GetCSNamespace(type);
-                }
-                var purename = @namespace + classname;
-                var gargs = type.GetGenericArguments();
-                purename += "<";
-                for (var i = 0; i < gargs.Length; i++)
-                {
-                    var garg = gargs[i];
-                    purename += GetCSTypeFullName(garg, shortName);
-                    if (i != gargs.Length - 1)
-                    {
-                        purename += ", ";
-                    }
-                }
-                purename += ">";
-                return purename;
-            }
-            if (type.IsArray)
-            {
-                return GetCSTypeFullName(type.GetElementType(), shortName) + "[]";
-            }
-            if (type.IsByRef)
-            {
-                return GetCSTypeFullName(type.GetElementType(), shortName);
-            }
-            string name;
-            if (shortName)
-            {
-                if (_csTypeNameMap.TryGetValue(type, out name))
-                {
-                    return name;
-                }
-            }
-            var fullname = type.FullName.Replace('+', '.');
-            if (fullname.Contains("`"))
-            {
-                fullname = new Regex(@"`\d", RegexOptions.None).Replace(fullname, "");
-                fullname = fullname.Replace("[", "<");
-                fullname = fullname.Replace("]", ">");
-            }
-            if (_csTypeNameMapS.TryGetValue(fullname, out name))
-            {
-                return name;
-            }
-            return fullname;
-        }
-
-        public TypeBindingInfo GetExportedType(Type type)
-        {
-            if (type == null)
-            {
-                return null;
-            }
-            TypeBindingInfo typeBindingInfo;
-            return exportedTypes.TryGetValue(type, out typeBindingInfo) ? typeBindingInfo : null;
-        }
-
-        // 是否在黑名单中屏蔽, 或者已知无需导出的类型
-        public bool IsExportingBlocked(Type type)
-        {
-            if (blacklist.Contains(type))
-            {
-                return true;
-            }
-            if (type.IsGenericType && !type.IsConstructedGenericType)
-            {
-                return true;
-            }
-            if (type.Name.Contains("<"))
-            {
-                return true;
-            }
-            if (type.IsDefined(typeof(JSBindingAttribute), false))
-            {
-                return true;
-            }
-            if (type.BaseType == typeof(Attribute))
-            {
-                return true;
-            }
-            if (type.BaseType == typeof(MulticastDelegate))
-            {
-                return true;
-            }
-            if (type.IsPointer)
-            {
-                return true;
-            }
-            var encloser = type;
-            while (encloser != null)
-            {
-                if (encloser.IsDefined(typeof(ObsoleteAttribute), false))
-                {
-                    return true;
-                }
-                encloser = encloser.DeclaringType;
-            }
-            for (int i = 0, size = typePrefixBlacklist.Count; i < size; i++)
-            {
-                if (type.FullName.StartsWith(typePrefixBlacklist[i]))
-                {
-                    return true;
-                }
-            }
-            return false;
-        }
-
-        // 是否显式要求导出
-        public bool IsExportingExplicit(Type type)
-        {
-            if (whitelist.Contains(type))
-            {
-                return true;
-            }
-            if (type.IsDefined(typeof(JSTypeAttribute), false))
-            {
-                return true;
-            }
-            return false;
-        }
-
-        private void OnPreCollectAssemblies()
-        {
-            for (int i = 0, size = _bindingProcess.Count; i < size; i++)
-            {
-                var bp = _bindingProcess[i];
-                try
-                {
-                    bp.OnPreCollectAssemblies(this);
-                }
-                catch (Exception exception)
-                {
-                    this.Error($"process failed [{bp}][OnPreCollect]: {exception}");
-                }
-            }
-        }
-
-        private void OnPostCollectAssemblies()
-        {
-            for (int i = 0, size = _bindingProcess.Count; i < size; i++)
-            {
-                var bp = _bindingProcess[i];
-                try
-                {
-                    bp.OnPostCollectAssemblies(this);
-                }
-                catch (Exception exception)
-                {
-                    this.Error($"process failed [{bp}][OnPostCollect]: {exception}");
-                }
-            }
-        }
-
-        private void OnPostExporting()
-        {
-            for (int i = 0, size = _bindingProcess.Count; i < size; i++)
-            {
-                var bp = _bindingProcess[i];
-                try
-                {
-                    bp.OnPostExporting(this);
-                }
-                catch (Exception exception)
-                {
-                    this.Error($"process failed [{bp}][OnPostExporting]: {exception}");
-                }
-            }
-        }
-
-        private void OnPreCollectTypes()
-        {
-            for (int i = 0, size = _bindingProcess.Count; i < size; i++)
-            {
-                var bp = _bindingProcess[i];
-                try
-                {
-                    bp.OnPreCollectTypes(this);
-                }
-                catch (Exception exception)
-                {
-                    this.Error($"process failed [{bp}][OnPreCollect]: {exception}");
-                }
-            }
-        }
-
-        private void OnPostCollectTypes()
-        {
-            for (int i = 0, size = _bindingProcess.Count; i < size; i++)
-            {
-                var bp = _bindingProcess[i];
-                try
-                {
-                    bp.OnPostCollectTypes(this);
-                }
-                catch (Exception exception)
-                {
-                    this.Error($"process failed [{bp}][OnPostCollect]: {exception}");
-                }
-            }
-        }
-
-        private void OnPreGenerateType(TypeBindingInfo bindingInfo)
-        {
-            for (int i = 0, size = _bindingProcess.Count; i < size; i++)
-            {
-                var bp = _bindingProcess[i];
-                try
-                {
-                    bp.OnPreGenerateType(this, bindingInfo);
-                }
-                catch (Exception exception)
-                {
-                    this.Error($"process failed [{bp}][OnPreGenerateType]: {exception}");
-                }
-            }
-        }
-
-        private void OnPostGenerateType(TypeBindingInfo bindingInfo)
-        {
-            for (int i = 0, size = _bindingProcess.Count; i < size; i++)
-            {
-                var bp = _bindingProcess[i];
-                try
-                {
-                    bp.OnPostGenerateType(this, bindingInfo);
-                }
-                catch (Exception exception)
-                {
-                    this.Error($"process failed [{bp}][OnPostGenerateType]: {exception}");
-                }
-            }
-        }
-
-        public void OnPreGenerateDelegate(DelegateBindingInfo bindingInfo)
-        {
-            for (int i = 0, size = _bindingProcess.Count; i < size; i++)
-            {
-                var bp = _bindingProcess[i];
-                try
-                {
-                    bp.OnPreGenerateDelegate(this, bindingInfo);
-                }
-                catch (Exception exception)
-                {
-                    this.Error($"process failed [{bp}][OnPreGenerateDelegate]: {exception}");
-                }
-            }
-        }
-
-        public void OnPostGenerateDelegate(DelegateBindingInfo bindingInfo)
-        {
-            for (int i = 0, size = _bindingProcess.Count; i < size; i++)
-            {
-                var bp = _bindingProcess[i];
-                try
-                {
-                    bp.OnPostGenerateDelegate(this, bindingInfo);
-                }
-                catch (Exception exception)
-                {
-                    this.Error($"process failed [{bp}][OnPostGenerateDelegate]: {exception}");
-                }
-            }
-        }
-
-        private void OnCleanup()
-        {
-            for (int i = 0, size = _bindingProcess.Count; i < size; i++)
-            {
-                var bp = _bindingProcess[i];
-                try
-                {
-                    bp.OnCleanup(this);
-                }
-                catch (Exception exception)
-                {
-                    this.Error($"process failed [{bp}][OnCleanup]: {exception}");
-                }
-            }
-        }
-
-
-
-        public void Collect()
-        {
-            // 收集直接类型, 加入 exportedTypes
-            OnPreCollectAssemblies();
-            AddAssemblies(false, prefs.explicitAssemblies.ToArray());
-            AddAssemblies(true, prefs.implicitAssemblies.ToArray());
-            OnPostCollectAssemblies();
-
-            ExportAssemblies(_explicitAssemblies, false);
-            ExportAssemblies(_implicitAssemblies, true);
-            ExportBuiltins();
-            OnPostExporting();
-
-            log.AppendLine("collecting members");
-            log.AddTabLevel();
-            OnPreCollectTypes();
-            foreach (var typeBindingInfoKV in exportedTypes)
-            {
-                var typeBindingInfo = typeBindingInfoKV.Value;
-                log.AppendLine("type: {0}", typeBindingInfo.type);
-                log.AddTabLevel();
-                typeBindingInfo.Collect();
-                log.DecTabLevel();
-            }
-            OnPostCollectTypes();
-            log.DecTabLevel();
-        }
-
-        public void AddAssemblies(bool implicitExport, params string[] assemblyNames)
-        {
-            if (implicitExport)
-            {
-                _implicitAssemblies.AddRange(assemblyNames);
-            }
-            else
-            {
-                _explicitAssemblies.AddRange(assemblyNames);
-            }
-        }
-
-        public void RemoveAssemblies(params string[] assemblyNames)
-        {
-            foreach (var name in assemblyNames)
-            {
-                _implicitAssemblies.Remove(name);
-                _explicitAssemblies.Remove(name);
-            }
-        }
-
-        // 导出一些必要的基本类型 (预实现的辅助功能需要用到, DuktapeJS)
-        private void ExportBuiltins()
-        {
-            AddExportedType(typeof(byte));
-            AddExportedType(typeof(sbyte));
-            AddExportedType(typeof(float));
-            AddExportedType(typeof(double));
-            AddExportedType(typeof(string));
-            AddExportedType(typeof(int));
-            AddExportedType(typeof(uint));
-            AddExportedType(typeof(short));
-            AddExportedType(typeof(ushort));
-            AddExportedType(typeof(object));
-            AddExportedType(typeof(Array));
-            AddExportedType(typeof(Object));
-            AddExportedType(typeof(Vector3));
-        }
-
-        // implicitExport: 默认进行导出(黑名单例外), 否则根据导出标记或手工添加
-        private void ExportAssemblies(List<string> assemblyNames, bool implicitExport)
-        {
-            foreach (var assemblyName in assemblyNames)
-            {
-                log.AppendLine("assembly: {0}", assemblyName);
-                log.AddTabLevel();
-                try
-                {
-                    var assembly = Assembly.Load(assemblyName);
-                    var types = assembly.GetExportedTypes();
-
-                    log.AppendLine("types {0}", types.Length);
-                    foreach (var type in types)
-                    {
-                        if (IsExportingBlocked(type))
-                        {
-                            log.AppendLine("blocked: {0}", type.FullName);
-                            continue;
-                        }
-                        if (implicitExport || IsExportingExplicit(type))
-                        {
-                            log.AppendLine("export: {0}", type.FullName);
-                            this.AddExportedType(type);
-                            continue;
-                        }
-                        log.AppendLine("skip: {0}", type.FullName);
-                    }
-                }
-                catch (Exception exception)
-                {
-                    log.AppendLine(exception.ToString());
-                }
-                log.DecTabLevel();
-            }
-        }
-
-        // 清理多余文件
-        public void Cleanup()
-        {
-            log.AppendLine("cleanup");
-            log.AddTabLevel();
-            Cleanup(prefs.outDir, outputFiles, file =>
-            {
-                removedFiles.Add(file);
-                log.AppendLine("remove unused file {0}", file);
-            });
-            OnCleanup();
-            log.DecTabLevel();
-        }
-
-        public static void Cleanup(string outDir, List<string> excludedFiles, Action<string> ondelete)
-        {
-            foreach (var file in Directory.GetFiles(outDir))
-            {
-                var nfile = file;
-                if (file.EndsWith(".meta"))
-                {
-                    nfile = file.Substring(0, file.Length - 5);
-                }
-                // Debug.LogFormat("checking file {0}", nfile);
-                if (excludedFiles == null || !excludedFiles.Contains(nfile))
-                {
-                    File.Delete(file);
-                    if (ondelete != null)
-                    {
-                        ondelete(file);
-                    }
-                }
-            }
-        }
-
-        public void AddOutputFile(string filename)
-        {
-            outputFiles.Add(filename);
-        }
-
-        public void Generate()
-        {
-            var cg = new CodeGenerator(this);
-            var outDir = prefs.outDir;
-            var tx = prefs.extraExt;
-            // var tx = "";
-            if (!Directory.Exists(outDir))
-            {
-                Directory.CreateDirectory(outDir);
-            }
-            var cancel = false;
-            var current = 0;
-            var total = exportedTypes.Count;
-            foreach (var typeKV in exportedTypes)
-            {
-                var typeBindingInfo = typeKV.Value;
-                try
-                {
-                    current++;
-                    cancel = EditorUtility.DisplayCancelableProgressBar(
-                        "Generating",
-                        $"{current}/{total}: {typeBindingInfo.FullName}",
-                        (float)current / total);
-                    if (cancel)
-                    {
-                        Warn("operation canceled");
-                        break;
-                    }
-                    if (!typeBindingInfo.omit)
-                    {
-                        cg.Clear();
-                        OnPreGenerateType(typeBindingInfo);
-                        cg.Generate(typeBindingInfo);
-                        OnPostGenerateType(typeBindingInfo);
-                        cg.WriteTo(outDir, typeBindingInfo.GetFileName(), tx);
-                    }
-                }
-                catch (Exception exception)
-                {
-                    Error($"generate failed {typeBindingInfo.type.FullName}: {exception.Message}");
-                    Debug.LogError(exception.StackTrace);
-                }
-            }
-
-            if (!cancel)
-            {
-                try
-                {
-                    var exportedDelegatesArray = new DelegateBindingInfo[this.exportedDelegates.Count];
-                    this.exportedDelegates.Values.CopyTo(exportedDelegatesArray, 0);
-
-                    cg.Clear();
-                    cg.Generate(exportedDelegatesArray);
-                    // cg.tsSource.enabled = false;
-                    cg.WriteTo(outDir, DuktapeVM._DuktapeDelegates, tx);
-                }
-                catch (Exception exception)
-                {
-                    Error($"generate delegates failed: {exception.Message}");
-                    Debug.LogError(exception.StackTrace);
-                }
-            }
-
-            var logPath = prefs.logPath;
-            File.WriteAllText(logPath, log.ToString());
-            EditorUtility.ClearProgressBar();
-        }
-
-        public void Report()
-        {
-            var now = DateTime.Now;
-            var ts = now.Subtract(dateTime);
-            Debug.LogFormat("generated {0} type(s), {1} delegate(s), {2} deletion(s) in {3:0.##} seconds.",
-                exportedTypes.Count,
-                exportedDelegates.Count,
-                removedFiles.Count,
-                ts.TotalSeconds);
-        }
-    }
+using System;
+using System.IO;
+using System.Collections.Generic;
+using System.Reflection;
+using System.Text.RegularExpressions;
+
+namespace Duktape
+{
+    using UnityEngine;
+    using UnityEditor;
+
+    public partial class BindingManager
+    {
+        public DateTime dateTime;
+        public TextGenerator log;
+        public Prefs prefs;
+
+        private List<string> _implicitAssemblies = new List<string>(); // 默认导出所有类型
+        private List<string> _explicitAssemblies = new List<string>(); // 仅导出指定需要导出的类型
+
+        private HashSet<Type> blacklist;
+        private HashSet<Type> whitelist;
+        private List<string> typePrefixBlacklist;
+        private Dictionary<Type, TypeBindingInfo> exportedTypes = new Dictionary<Type, TypeBindingInfo>();
+        private Dictionary<Type, DelegateBindingInfo> exportedDelegates = new Dictionary<Type, DelegateBindingInfo>();
+        private Dictionary<Type, Type> redirectDelegates = new Dictionary<Type, Type>();
+        // 类型修改
+        private Dictionary<Type, TypeTransform> typesTarnsform = new Dictionary<Type, TypeTransform>();
+        private List<string> outputFiles = new List<string>();
+        private List<string> removedFiles = new List<string>();
+
+        private Dictionary<Type, List<string>> _tsTypeNameMap = new Dictionary<Type, List<string>>();
+        private Dictionary<Type, string> _csTypeNameMap = new Dictionary<Type, string>();
+        private Dictionary<string, string> _csTypeNameMapS = new Dictionary<string, string>();
+        private static HashSet<string> _tsKeywords = new HashSet<string>();
+
+        // 自定义的处理流程
+        private List<IBindingProcess> _bindingProcess = new List<IBindingProcess>();
+
+        static BindingManager()
+        {
+            AddTSKeywords(
+                "function",
+                "interface",
+                "class",
+                "let",
+                "break",
+                "as",
+                "any",
+                "switch",
+                "case",
+                "if",
+                "throw",
+                "else",
+                "var",
+                "number",
+                "string",
+                "get",
+                "module",
+                // "type",
+                "instanceof",
+                "typeof",
+                "public",
+                "private",
+                "enum",
+                "export",
+                "finally",
+                "for",
+                "while",
+                "void",
+                "null",
+                "super",
+                "this",
+                "new",
+                "in",
+                "extends",
+                "static",
+                "package",
+                "implements",
+                "interface",
+                "continue",
+                "yield",
+                "const"
+            );
+        }
+
+        public BindingManager(Prefs prefs)
+        {
+            this.prefs = prefs;
+            this.dateTime = DateTime.Now;
+            var tab = prefs.tab;
+            var newline = prefs.newline;
+            typePrefixBlacklist = prefs.typePrefixBlacklist;
+            log = new TextGenerator(newline, tab);
+            blacklist = new HashSet<Type>(new Type[]
+            {
+                typeof(AOT.MonoPInvokeCallbackAttribute),
+            });
+            whitelist = new HashSet<Type>(new Type[]
+            {
+            });
+
+            TransformType(typeof(GameObject))
+                // .AddRedirectMethod("AddComponent", "_AddComponent")
+                // .AddRedirectMethod("GetComponent", "_GetComponent")
+                // .AddRedirectMethod("GetComponentInChildren", "_GetComponentInChildren")
+                // .AddRedirectMethod("GetComponentInParent", "_GetComponentInParent")
+                // .AddRedirectMethod("GetComponents", "_GetComponents")
+                // .AddRedirectMethod("GetComponentsInChildren", "_GetComponentsInChildren")
+                // .AddRedirectMethod("GetComponentsInParent", "_GetComponentsInParent")
+                .AddTSMethodDeclaration("AddComponent<T extends UnityEngine.Component>(type: { new(): T }): T",
+                    "AddComponent", typeof(Type))
+                .AddTSMethodDeclaration("GetComponent<T extends UnityEngine.Component>(type: { new(): T }): T",
+                    "GetComponent", typeof(Type))
+                .AddTSMethodDeclaration("GetComponentInChildren<T extends UnityEngine.Component>(type: { new(): T }, includeInactive: boolean): T",
+                    "GetComponentInChildren", typeof(Type), typeof(bool))
+                .AddTSMethodDeclaration("GetComponentInChildren<T extends UnityEngine.Component>(type: { new(): T }): T",
+                    "GetComponentInChildren", typeof(Type))
+                .AddTSMethodDeclaration("GetComponentInParent<T extends UnityEngine.Component>(type: { new(): T }): T",
+                    "GetComponentInParent", typeof(Type))
+                // .AddTSMethodDeclaration("GetComponents<T extends UnityEngine.Component>(type: { new(): T }, results: any): void", 
+                //     "GetComponents", typeof(Type))
+                .AddTSMethodDeclaration("GetComponents<T extends UnityEngine.Component>(type: { new(): T }): T[]",
+                    "GetComponents", typeof(Type))
+                .AddTSMethodDeclaration("GetComponentsInChildren<T extends UnityEngine.Component>(type: { new(): T }, includeInactive: boolean): T[]",
+                    "GetComponentsInChildren", typeof(Type), typeof(bool))
+                .AddTSMethodDeclaration("GetComponentsInChildren<T extends UnityEngine.Component>(type: { new(): T }): T[]",
+                    "GetComponentsInChildren", typeof(Type))
+                .AddTSMethodDeclaration("GetComponentsInParent<T extends UnityEngine.Component>(type: { new(): T }, includeInactive: boolean): T[]",
+                    "GetComponentsInParent", typeof(Type), typeof(bool))
+                .AddTSMethodDeclaration("GetComponentsInParent<T extends UnityEngine.Component>(type: { new(): T }): T[]",
+                    "GetComponentsInParent", typeof(Type))
+            ;
+
+            // fix d.ts, some C# classes use explicit implemented interface method
+            SetTypeBlocked(typeof(UnityEngine.ILogHandler));
+            SetTypeBlocked(typeof(UnityEngine.ISerializationCallbackReceiver));
+
+            TransformType(typeof(object))
+                .RenameTSMethod("$Equals", "Equals", typeof(object))
+                .RenameTSMethod("$Equals", "Equals", typeof(object), typeof(object))
+            ;
+
+            TransformType(typeof(Vector3))
+                .SetMethodBlocked("SqrMagnitude", typeof(Vector3))
+                .SetMethodBlocked("Magnitude", typeof(Vector3))
+                .AddTSMethodDeclaration("static Add(a: Vector3, b: Vector3): Vector3")
+                .AddTSMethodDeclaration("static Sub(a: Vector3, b: Vector3): Vector3")
+                .AddTSMethodDeclaration("static Mul(a: Vector3, b: Vector3): Vector3")
+                .AddTSMethodDeclaration("static Div(a: Vector3, b: Vector3): Vector3")
+                .AddTSMethodDeclaration("static Equals(a: Vector3, b: Vector3): boolean")
+                .AddTSMethodDeclaration("Equals(b: Vector3): boolean")
+                .AddTSMethodDeclaration("Inverse(): Vector3")
+                .AddTSMethodDeclaration("Clone(): Vector3")
+            ;
+
+            TransformType(typeof(Vector2))
+                .SetMethodBlocked("SqrMagnitude")
+                .SetMethodBlocked("SqrMagnitude", typeof(Vector2))
+                .AddTSMethodDeclaration("static Add(a: Vector2, b: Vector2): Vector2")
+                .AddTSMethodDeclaration("static Sub(a: Vector2, b: Vector2): Vector2")
+                .AddTSMethodDeclaration("static Mul(a: Vector2, b: Vector2): Vector2")
+                .AddTSMethodDeclaration("static Div(a: Vector2, b: Vector2): Vector2")
+                .AddTSMethodDeclaration("static Equals(a: Vector2, b: Vector2): boolean")
+                .AddTSMethodDeclaration("Equals(b: Vector2): boolean")
+                .AddTSMethodDeclaration("Inverse(): Vector2")
+                .AddTSMethodDeclaration("Clone(): Vector2")
+            ;
+
+            TransformType(typeof(Quaternion))
+                .AddTSMethodDeclaration("Clone(): Quaternion")
+            ;
+            // SetTypeBlocked(typeof(RendererExtensions));
+            SetTypeBlocked(typeof(UnityEngine.UI.ILayoutGroup));
+            SetTypeBlocked(typeof(UnityEngine.UI.ILayoutSelfController));
+            TransformType(typeof(UnityEngine.UI.PositionAsUV1))
+                .SetMemberBlocked("ModifyMesh");
+            TransformType(typeof(UnityEngine.UI.Shadow))
+                .SetMemberBlocked("ModifyMesh");
+            TransformType(typeof(UnityEngine.UI.Outline))
+                .SetMemberBlocked("ModifyMesh");
+
+            // editor 使用的 .net 与 player 所用存在差异, 这里屏蔽不存在的成员
+            TransformType(typeof(double))
+                .SetMemberBlocked("IsFinite")
+            ;
+            TransformType(typeof(float))
+                .SetMemberBlocked("IsFinite")
+            ;
+            TransformType(typeof(string))
+                .SetMemberBlocked("Chars")
+            ;
+
+            AddTSTypeNameMap(typeof(sbyte), "number");
+            AddTSTypeNameMap(typeof(byte), "number");
+            AddTSTypeNameMap(typeof(int), "number");
+            AddTSTypeNameMap(typeof(uint), "number");
+            AddTSTypeNameMap(typeof(short), "number");
+            AddTSTypeNameMap(typeof(ushort), "number");
+            AddTSTypeNameMap(typeof(long), "number");
+            AddTSTypeNameMap(typeof(ulong), "number");
+            AddTSTypeNameMap(typeof(float), "number");
+            AddTSTypeNameMap(typeof(double), "number");
+            AddTSTypeNameMap(typeof(bool), "boolean");
+            AddTSTypeNameMap(typeof(string), "string");
+            AddTSTypeNameMap(typeof(char), "string");
+            AddTSTypeNameMap(typeof(void), "void");
+            AddTSTypeNameMap(typeof(LayerMask), "UnityEngine.LayerMask", "number");
+            AddTSTypeNameMap(typeof(Color), "UnityEngine.Color");
+            AddTSTypeNameMap(typeof(Color32), "UnityEngine.Color32");
+            AddTSTypeNameMap(typeof(Vector2), "UnityEngine.Vector2");
+            AddTSTypeNameMap(typeof(Vector2Int), "UnityEngine.Vector2Int");
+            AddTSTypeNameMap(typeof(Vector3), "UnityEngine.Vector3"); // 已优化, 在 VM 初始化时替换为 DuktapeJS.Vector3
+            AddTSTypeNameMap(typeof(Vector3Int), "UnityEngine.Vector3Int");
+            AddTSTypeNameMap(typeof(Vector4), "UnityEngine.Vector4");
+            AddTSTypeNameMap(typeof(Quaternion), "UnityEngine.Quaternion");
+            AddTSTypeNameMap(typeof(DuktapeArray), "any[]");
+
+            AddCSTypeNameMap(typeof(sbyte), "sbyte");
+            AddCSTypeNameMap(typeof(byte), "byte");
+            AddCSTypeNameMap(typeof(int), "int");
+            AddCSTypeNameMap(typeof(uint), "uint");
+            AddCSTypeNameMap(typeof(short), "short");
+            AddCSTypeNameMap(typeof(ushort), "ushort");
+            AddCSTypeNameMap(typeof(long), "long");
+            AddCSTypeNameMap(typeof(ulong), "ulong");
+            AddCSTypeNameMap(typeof(float), "float");
+            AddCSTypeNameMap(typeof(double), "double");
+            AddCSTypeNameMap(typeof(bool), "bool");
+            AddCSTypeNameMap(typeof(string), "string");
+            AddCSTypeNameMap(typeof(char), "char");
+            AddCSTypeNameMap(typeof(System.Object), "object");
+            AddCSTypeNameMap(typeof(void), "void");
+
+            Initialize();
+        }
+
+        public void SetTypeBlocked(Type type)
+        {
+            blacklist.Add(type);
+        }
+
+        public bool GetTSMethodDeclaration(MethodBase method, out string code)
+        {
+            var transform = GetTypeTransform(method.DeclaringType);
+            if (transform != null)
+            {
+                return transform.GetTSMethodDeclaration(method, out code);
+            }
+            code = null;
+            return false;
+        }
+
+        public bool GetTSMethodRename(MethodBase method, out string code)
+        {
+            var transform = GetTypeTransform(method.DeclaringType);
+            if (transform != null)
+            {
+                return transform.GetTSMethodRename(method, out code);
+            }
+            code = null;
+            return false;
+        }
+
+        public TypeTransform GetTypeTransform(Type type)
+        {
+            TypeTransform transform;
+            return typesTarnsform.TryGetValue(type, out transform) ? transform : null;
+        }
+
+        public TypeTransform TransformType(Type type)
+        {
+            TypeTransform transform;
+            if (!typesTarnsform.TryGetValue(type, out transform))
+            {
+                typesTarnsform[type] = transform = new TypeTransform(type);
+            }
+            return transform;
+        }
+
+        private static bool _FindFilterBindingProcess(Type type, object l)
+        {
+            return type == typeof(IBindingProcess);
+        }
+
+        private void Initialize()
+        {
+            var assembly = Assembly.Load("Assembly-CSharp-Editor");
+            var types = assembly.GetExportedTypes();
+            for (int i = 0, size = types.Length; i < size; i++)
+            {
+                var type = types[i];
+                if (type.IsAbstract)
+                {
+                    continue;
+                }
+                try
+                {
+                    var interfaces = type.FindInterfaces(_FindFilterBindingProcess, null);
+                    if (interfaces != null && interfaces.Length > 0)
+                    {
+                        var ctor = type.GetConstructor(Type.EmptyTypes);
+                        var inst = ctor.Invoke(null) as IBindingProcess;
+                        inst.OnInitialize(this);
+                        _bindingProcess.Add(inst);
+                        Debug.Log($"add binding process: {type}");
+                        // _bindingProcess.Add
+                    }
+                }
+                catch (Exception exception)
+                {
+                    Debug.LogWarning($"failed to add binding process: {type}\n{exception}");
+                }
+            }
+        }
+
+        // TS: 添加保留字, CS中相关变量名等会自动重命名注册到js中
+        public static void AddTSKeywords(params string[] keywords)
+        {
+            foreach (var keyword in keywords)
+            {
+                _tsKeywords.Add(keyword);
+            }
+        }
+
+        // 指定类型在 ts 声明中的映射名 (可以指定多项)
+        public void AddTSTypeNameMap(Type type, params string[] names)
+        {
+            List<string> list;
+            if (!_tsTypeNameMap.TryGetValue(type, out list))
+            {
+                _tsTypeNameMap[type] = list = new List<string>();
+            }
+            list.AddRange(names);
+        }
+
+        // CS, 添加类型名称映射, 用于简化导出时的常用类型名
+        public void AddCSTypeNameMap(Type type, string name)
+        {
+            _csTypeNameMap[type] = name;
+            _csTypeNameMapS[type.FullName] = name;
+            _csTypeNameMapS[GetCSNamespace(type) + type.Name] = name;
+        }
+
+        // 增加导出类型 (需要在 Collect 阶段进行)
+        //NOTE: editor mscorlib 与 runtime 存在差异, 需要手工 block 差异
+        public TypeTransform AddExportedType(Type type)
+        {
+            if (type.IsGenericTypeDefinition)
+            {
+                whitelist.Add(type);
+                return null;
+            }
+            if (!exportedTypes.ContainsKey(type))
+            {
+                var typeBindingInfo = new TypeBindingInfo(this, type);
+                exportedTypes.Add(type, typeBindingInfo);
+                log.AppendLine($"AddExportedType: {type} Assembly: {type.Assembly}");
+
+                // 检查具体化泛型基类 (如果基类泛型定义在显式导出清单中, 那么导出此具体化类)
+                var baseType = type.BaseType;
+                if (baseType != null && baseType.IsConstructedGenericType)
+                {
+                    if (!IsExportingBlocked(baseType) && IsExportingExplicit(baseType.GetGenericTypeDefinition()))
+                    {
+                        AddExportedType(baseType);
+                    }
+                }
+            }
+            return TransformType(type);
+        }
+
+        public bool RemoveExportedType(Type type)
+        {
+            return exportedTypes.Remove(type);
+        }
+
+        public DelegateBindingInfo GetDelegateBindingInfo(Type type)
+        {
+            Type target;
+            if (redirectDelegates.TryGetValue(type, out target))
+            {
+                type = target;
+            }
+            DelegateBindingInfo delegateBindingInfo;
+            if (exportedDelegates.TryGetValue(type, out delegateBindingInfo))
+            {
+                return delegateBindingInfo;
+            }
+            return null;
+        }
+
+        public static bool ContainsPointer(MethodBase method)
+        {
+            var parameters = method.GetParameters();
+            for (int i = 0, size = parameters.Length; i < size; i++)
+            {
+                var parameterType = parameters[i].ParameterType;
+                if (parameterType.IsPointer)
+                {
+                    return true;
+                }
+            }
+            return false;
+        }
+
+        public static bool IsGenericMethod(MethodBase method)
+        {
+            return method.GetGenericArguments().Length > 0;
+        }
+
+        public static bool IsUnsupported(MethodBase method)
+        {
+            return ContainsPointer(method) || IsGenericMethod(method);
+        }
+
+        // 收集所有 delegate 类型
+        public void CollectDelegate(Type type)
+        {
+            if (type == null || type.BaseType != typeof(MulticastDelegate))
+            {
+                return;
+            }
+            if (!exportedDelegates.ContainsKey(type))
+            {
+                var invoke = type.GetMethod("Invoke");
+                var returnType = invoke.ReturnType;
+                var parameters = invoke.GetParameters();
+                if (ContainsPointer(invoke))
+                {
+                    log.AppendLine("skip unsafe (pointer) delegate: [{0}] {1}", type, invoke);
+                    return;
+                }
+                // 是否存在等价 delegate
+                foreach (var kv in exportedDelegates)
+                {
+                    if (kv.Value.Equals(returnType, parameters))
+                    {
+                        log.AppendLine("skip delegate: {0} && {1}", kv.Value, type);
+                        kv.Value.types.Add(type);
+                        redirectDelegates[type] = kv.Key;
+                        return;
+                    }
+                }
+                var delegateBindingInfo = new DelegateBindingInfo(returnType, parameters);
+                delegateBindingInfo.types.Add(type);
+                exportedDelegates.Add(type, delegateBindingInfo);
+                log.AppendLine("add delegate: {0}", type);
+                for (var i = 0; i < parameters.Length; i++)
+                {
+                    CollectDelegate(parameters[i].ParameterType);
+                }
+            }
+        }
+
+        public bool IsExported(Type type)
+        {
+            return exportedTypes.ContainsKey(type);
+        }
+
+        public string GetTSRefWrap(string name)
+        {
+            return $"DuktapeJS.Ref<{name}>";
+        }
+
+        public string GetTSTypeFullName(ParameterInfo parameter)
+        {
+            var parameterType = parameter.ParameterType;
+            return GetTSTypeFullName(parameterType, parameter.IsOut);
+        }
+
+        // 获取 type 在 typescript 中对应类型名
+        public string GetTSTypeFullName(Type type)
+        {
+            return GetTSTypeFullName(type, false);
+        }
+
+        public string GetTSTypeFullName(Type type, bool isOut)
+        {
+            if (type == null || type == typeof(void))
+            {
+                return "void";
+            }
+            if (type.IsByRef)
+            {
+                if (isOut)
+                {
+                    return $"DuktapeJS.Out<{GetTSTypeFullName(type.GetElementType())}>";
+                }
+                return $"DuktapeJS.Ref<{GetTSTypeFullName(type.GetElementType())}>";
+            }
+            List<string> names;
+            if (_tsTypeNameMap.TryGetValue(type, out names))
+            {
+                return names.Count > 1 ? $"({String.Join(" | ", names)})" : names[0];
+            }
+            if (type.IsArray)
+            {
+                if (type.GetElementType() == typeof(byte))
+                {
+                    return "Buffer";
+                }
+                var elementType = type.GetElementType();
+                return GetTSTypeFullName(elementType) + "[]";
+            }
+            var info = GetExportedType(type);
+            if (info != null)
+            {
+                return info.jsFullName;
+            }
+            if (type.BaseType == typeof(MulticastDelegate))
+            {
+                var delegateBindingInfo = GetDelegateBindingInfo(type);
+                if (delegateBindingInfo != null)
+                {
+                    var nargs = delegateBindingInfo.parameters.Length;
+                    var ret = GetTSTypeFullName(delegateBindingInfo.returnType);
+                    var t_arglist = (nargs > 0 ? ", " : "") + GetTSArglistTypes(delegateBindingInfo.parameters, false);
+                    var v_arglist = GetTSArglistTypes(delegateBindingInfo.parameters, true);
+                    return $"DuktapeJS.Delegate{nargs}<{ret}{t_arglist}> | (({v_arglist}) => {ret})";
+                }
+            }
+            return "any";
+        }
+
+        public string GetCSNamespace(Type type)
+        {
+            return GetCSNamespace(type.Namespace);
+        }
+
+        public string GetCSNamespace(string ns)
+        {
+            return string.IsNullOrEmpty(ns) ? "" : (ns + ".");
+        }
+
+        // 生成参数对应的字符串形式参数列表定义 (typescript)
+        public string GetTSArglistTypes(ParameterInfo[] parameters, bool withVarName)
+        {
+            var size = parameters.Length;
+            var arglist = "";
+            if (size == 0)
+            {
+                return arglist;
+            }
+            for (var i = 0; i < size; i++)
+            {
+                var parameter = parameters[i];
+                var typename = GetTSTypeFullName(parameter.ParameterType);
+                // if (parameter.IsOut && parameter.ParameterType.IsByRef)
+                // {
+                //     arglist += "out ";
+                // }
+                // else if (parameter.ParameterType.IsByRef)
+                // {
+                //     arglist += "ref ";
+                // }
+                if (withVarName)
+                {
+                    arglist += GetTSVariable(parameter.Name) + ": ";
+                }
+                arglist += typename;
+                // arglist += " ";
+                // arglist += parameter.Name;
+                if (i != size - 1)
+                {
+                    arglist += ", ";
+                }
+            }
+            return arglist;
+        }
+
+        public string GetDuktapeGenericError(string err)
+        {
+            return $"DuktapeDLL.duk_generic_error(ctx, \"{err}\");";
+        }
+
+        public string GetDuktapeGetter(Type type)
+        {
+            if (type.IsByRef)
+            {
+                return GetDuktapeGetter(type.GetElementType());
+            }
+            if (type.IsArray)
+            {
+                var elementType = type.GetElementType();
+                return GetDuktapeGetter(elementType) + "_array"; //TODO: 嵌套数组的问题
+            }
+            if (type.IsValueType)
+            {
+                if (type.IsPrimitive)
+                {
+                    return "duk_get_primitive";
+                }
+                if (type.IsEnum)
+                {
+                    return "duk_get_enumvalue";
+                }
+                return "duk_get_structvalue";
+            }
+            if (type == typeof(string))
+            {
+                return "duk_get_primitive";
+            }
+            if (type.BaseType == typeof(MulticastDelegate))
+            {
+                return "duk_get_delegate";
+            }
+            if (type == typeof(Type))
+            {
+                return "duk_get_type";
+            }
+            return "duk_get_classvalue";
+        }
+
+        public string GetDuktapePusher(Type type)
+        {
+            if (type.IsByRef)
+            {
+                return GetDuktapePusher(type.GetElementType());
+            }
+            if (type.BaseType == typeof(MulticastDelegate))
+            {
+                return "duk_push_delegate";
+            }
+            if (type.IsValueType)
+            {
+                if (type.IsPrimitive)
+                {
+                    return "duk_push_primitive";
+                }
+                if (type.IsEnum)
+                {
+                    return "duk_push_enumvalue";
+                }
+                return "duk_push_structvalue";
+            }
+            if (type == typeof(string))
+            {
+                return "duk_push_primitive";
+            }
+            return "duk_push_classvalue";
+        }
+
+        public static string GetTSVariable(string name)
+        {
+            if (_tsKeywords.Contains(name))
+            {
+                return name + "_";
+            }
+            return name;
+        }
+
+        // 保证生成一个以 prefix 为前缀, 与参数列表中所有参数名不同的名字
+        public string GetUniqueName(ParameterInfo[] parameters, string prefix)
+        {
+            return GetUniqueName(parameters, prefix, 0);
+        }
+
+        public string GetUniqueName(ParameterInfo[] parameters, string prefix, int index)
+        {
+            var size = parameters.Length;
+            var name = prefix + index;
+            for (var i = 0; i < size; i++)
+            {
+                var parameter = parameters[i];
+                if (parameter.Name == prefix)
+                {
+                    return GetUniqueName(parameters, prefix, index + 1);
+                }
+            }
+            return name;
+        }
+
+        // 获取父类的ts声明 (沿继承链上溯直到存在导出)
+        public string GetTSSuperName(TypeBindingInfo typeBindingInfo)
+        {
+            var super = typeBindingInfo.super;
+            while (super != null)
+            {
+                var superBindingInfo = GetExportedType(super);
+                if (superBindingInfo != null)
+                {
+                    return GetTSTypeFullName(superBindingInfo.type);
+                }
+                super = super.BaseType;
+            }
+            return "";
+        }
+
+        // 获取实现的接口的ts声明
+        public string GetTSInterfacesName(TypeBindingInfo typeBindingInfo)
+        {
+            var interfaces = typeBindingInfo.type.GetInterfaces();
+            var str = "";
+            foreach (var @interface in interfaces)
+            {
+                var interfaceBindingInfo = GetExportedType(@interface);
+                if (interfaceBindingInfo != null)
+                {
+                    // Debug.Log($"{typeBindingInfo.type.Name} implements {@interface.Name}");
+                    str += GetTSTypeFullName(interfaceBindingInfo.type) + ", ";
+                }
+            }
+            if (str.Length > 0)
+            {
+                str = str.Substring(0, str.Length - 2);
+            }
+            return str;
+        }
+
+        // 生成参数对应的字符串形式参数列表 (csharp)
+        public string GetCSArglistDecl(ParameterInfo[] parameters)
+        {
+            var size = parameters.Length;
+            var arglist = "";
+            if (size == 0)
+            {
+                return arglist;
+            }
+            for (var i = 0; i < size; i++)
+            {
+                var parameter = parameters[i];
+                var typename = GetCSTypeFullName(parameter.ParameterType);
+                if (parameter.IsOut && parameter.ParameterType.IsByRef)
+                {
+                    arglist += "out ";
+                }
+                else if (parameter.ParameterType.IsByRef)
+                {
+                    arglist += "ref ";
+                }
+                arglist += typename;
+                arglist += " ";
+                arglist += parameter.Name;
+                if (i != size - 1)
+                {
+                    arglist += ", ";
+                }
+            }
+            return arglist;
+        }
+
+        // 获取 type 在 绑定代码 中对应类型名
+        public string GetCSTypeFullName(Type type)
+        {
+            return GetCSTypeFullName(type, true);
+        }
+
+        public string GetCSTypeFullName(Type type, bool shortName)
+        {
+            // Debug.LogFormat("{0} Array {1} ByRef {2} GetElementType {3}", type, type.IsArray, type.IsByRef, type.GetElementType());
+            if (type.IsGenericType)
+            {
+                var @namespace = string.Empty;
+                var classname = type.Name.Substring(0, type.Name.Length - 2);
+                if (type.IsNested)
+                {
+                    var indexOf = type.FullName.IndexOf("+");
+                    @namespace = type.FullName.Substring(0, indexOf) + ".";
+                }
+                else
+                {
+                    @namespace = GetCSNamespace(type);
+                }
+                var purename = @namespace + classname;
+                var gargs = type.GetGenericArguments();
+                purename += "<";
+                for (var i = 0; i < gargs.Length; i++)
+                {
+                    var garg = gargs[i];
+                    purename += GetCSTypeFullName(garg, shortName);
+                    if (i != gargs.Length - 1)
+                    {
+                        purename += ", ";
+                    }
+                }
+                purename += ">";
+                return purename;
+            }
+            if (type.IsArray)
+            {
+                return GetCSTypeFullName(type.GetElementType(), shortName) + "[]";
+            }
+            if (type.IsByRef)
+            {
+                return GetCSTypeFullName(type.GetElementType(), shortName);
+            }
+            string name;
+            if (shortName)
+            {
+                if (_csTypeNameMap.TryGetValue(type, out name))
+                {
+                    return name;
+                }
+            }
+            var fullname = type.FullName.Replace('+', '.');
+            if (fullname.Contains("`"))
+            {
+                fullname = new Regex(@"`\d", RegexOptions.None).Replace(fullname, "");
+                fullname = fullname.Replace("[", "<");
+                fullname = fullname.Replace("]", ">");
+            }
+            if (_csTypeNameMapS.TryGetValue(fullname, out name))
+            {
+                return name;
+            }
+            return fullname;
+        }
+
+        public TypeBindingInfo GetExportedType(Type type)
+        {
+            if (type == null)
+            {
+                return null;
+            }
+            TypeBindingInfo typeBindingInfo;
+            return exportedTypes.TryGetValue(type, out typeBindingInfo) ? typeBindingInfo : null;
+        }
+
+        // 是否在黑名单中屏蔽, 或者已知无需导出的类型
+        public bool IsExportingBlocked(Type type)
+        {
+            if (blacklist.Contains(type))
+            {
+                return true;
+            }
+            if (type.IsGenericType && !type.IsConstructedGenericType)
+            {
+                return true;
+            }
+            if (type.Name.Contains("<"))
+            {
+                return true;
+            }
+            if (type.IsDefined(typeof(JSBindingAttribute), false))
+            {
+                return true;
+            }
+            if (type.BaseType == typeof(Attribute))
+            {
+                return true;
+            }
+            if (type.BaseType == typeof(MulticastDelegate))
+            {
+                return true;
+            }
+            if (type.IsPointer)
+            {
+                return true;
+            }
+            var encloser = type;
+            while (encloser != null)
+            {
+                if (encloser.IsDefined(typeof(ObsoleteAttribute), false))
+                {
+                    return true;
+                }
+                encloser = encloser.DeclaringType;
+            }
+            for (int i = 0, size = typePrefixBlacklist.Count; i < size; i++)
+            {
+                if (type.FullName.StartsWith(typePrefixBlacklist[i]))
+                {
+                    return true;
+                }
+            }
+            return false;
+        }
+
+        // 是否显式要求导出
+        public bool IsExportingExplicit(Type type)
+        {
+            if (whitelist.Contains(type))
+            {
+                return true;
+            }
+            if (type.IsDefined(typeof(JSTypeAttribute), false))
+            {
+                return true;
+            }
+            return false;
+        }
+
+        private void OnPreCollectAssemblies()
+        {
+            for (int i = 0, size = _bindingProcess.Count; i < size; i++)
+            {
+                var bp = _bindingProcess[i];
+                try
+                {
+                    bp.OnPreCollectAssemblies(this);
+                }
+                catch (Exception exception)
+                {
+                    this.Error($"process failed [{bp}][OnPreCollect]: {exception}");
+                }
+            }
+        }
+
+        private void OnPostCollectAssemblies()
+        {
+            for (int i = 0, size = _bindingProcess.Count; i < size; i++)
+            {
+                var bp = _bindingProcess[i];
+                try
+                {
+                    bp.OnPostCollectAssemblies(this);
+                }
+                catch (Exception exception)
+                {
+                    this.Error($"process failed [{bp}][OnPostCollect]: {exception}");
+                }
+            }
+        }
+
+        private void OnPostExporting()
+        {
+            for (int i = 0, size = _bindingProcess.Count; i < size; i++)
+            {
+                var bp = _bindingProcess[i];
+                try
+                {
+                    bp.OnPostExporting(this);
+                }
+                catch (Exception exception)
+                {
+                    this.Error($"process failed [{bp}][OnPostExporting]: {exception}");
+                }
+            }
+        }
+
+        private void OnPreCollectTypes()
+        {
+            for (int i = 0, size = _bindingProcess.Count; i < size; i++)
+            {
+                var bp = _bindingProcess[i];
+                try
+                {
+                    bp.OnPreCollectTypes(this);
+                }
+                catch (Exception exception)
+                {
+                    this.Error($"process failed [{bp}][OnPreCollect]: {exception}");
+                }
+            }
+        }
+
+        private void OnPostCollectTypes()
+        {
+            for (int i = 0, size = _bindingProcess.Count; i < size; i++)
+            {
+                var bp = _bindingProcess[i];
+                try
+                {
+                    bp.OnPostCollectTypes(this);
+                }
+                catch (Exception exception)
+                {
+                    this.Error($"process failed [{bp}][OnPostCollect]: {exception}");
+                }
+            }
+        }
+
+        private void OnPreGenerateType(TypeBindingInfo bindingInfo)
+        {
+            for (int i = 0, size = _bindingProcess.Count; i < size; i++)
+            {
+                var bp = _bindingProcess[i];
+                try
+                {
+                    bp.OnPreGenerateType(this, bindingInfo);
+                }
+                catch (Exception exception)
+                {
+                    this.Error($"process failed [{bp}][OnPreGenerateType]: {exception}");
+                }
+            }
+        }
+
+        private void OnPostGenerateType(TypeBindingInfo bindingInfo)
+        {
+            for (int i = 0, size = _bindingProcess.Count; i < size; i++)
+            {
+                var bp = _bindingProcess[i];
+                try
+                {
+                    bp.OnPostGenerateType(this, bindingInfo);
+                }
+                catch (Exception exception)
+                {
+                    this.Error($"process failed [{bp}][OnPostGenerateType]: {exception}");
+                }
+            }
+        }
+
+        public void OnPreGenerateDelegate(DelegateBindingInfo bindingInfo)
+        {
+            for (int i = 0, size = _bindingProcess.Count; i < size; i++)
+            {
+                var bp = _bindingProcess[i];
+                try
+                {
+                    bp.OnPreGenerateDelegate(this, bindingInfo);
+                }
+                catch (Exception exception)
+                {
+                    this.Error($"process failed [{bp}][OnPreGenerateDelegate]: {exception}");
+                }
+            }
+        }
+
+        public void OnPostGenerateDelegate(DelegateBindingInfo bindingInfo)
+        {
+            for (int i = 0, size = _bindingProcess.Count; i < size; i++)
+            {
+                var bp = _bindingProcess[i];
+                try
+                {
+                    bp.OnPostGenerateDelegate(this, bindingInfo);
+                }
+                catch (Exception exception)
+                {
+                    this.Error($"process failed [{bp}][OnPostGenerateDelegate]: {exception}");
+                }
+            }
+        }
+
+        private void OnCleanup()
+        {
+            for (int i = 0, size = _bindingProcess.Count; i < size; i++)
+            {
+                var bp = _bindingProcess[i];
+                try
+                {
+                    bp.OnCleanup(this);
+                }
+                catch (Exception exception)
+                {
+                    this.Error($"process failed [{bp}][OnCleanup]: {exception}");
+                }
+            }
+        }
+
+
+
+        public void Collect()
+        {
+            // 收集直接类型, 加入 exportedTypes
+            OnPreCollectAssemblies();
+            AddAssemblies(false, prefs.explicitAssemblies.ToArray());
+            AddAssemblies(true, prefs.implicitAssemblies.ToArray());
+            OnPostCollectAssemblies();
+
+            ExportAssemblies(_explicitAssemblies, false);
+            ExportAssemblies(_implicitAssemblies, true);
+            ExportBuiltins();
+            OnPostExporting();
+
+            log.AppendLine("collecting members");
+            log.AddTabLevel();
+            OnPreCollectTypes();
+            foreach (var typeBindingInfoKV in exportedTypes)
+            {
+                var typeBindingInfo = typeBindingInfoKV.Value;
+                log.AppendLine("type: {0}", typeBindingInfo.type);
+                log.AddTabLevel();
+                typeBindingInfo.Collect();
+                log.DecTabLevel();
+            }
+            OnPostCollectTypes();
+            log.DecTabLevel();
+        }
+
+        public void AddAssemblies(bool implicitExport, params string[] assemblyNames)
+        {
+            if (implicitExport)
+            {
+                _implicitAssemblies.AddRange(assemblyNames);
+            }
+            else
+            {
+                _explicitAssemblies.AddRange(assemblyNames);
+            }
+        }
+
+        public void RemoveAssemblies(params string[] assemblyNames)
+        {
+            foreach (var name in assemblyNames)
+            {
+                _implicitAssemblies.Remove(name);
+                _explicitAssemblies.Remove(name);
+            }
+        }
+
+        // 导出一些必要的基本类型 (预实现的辅助功能需要用到, DuktapeJS)
+        private void ExportBuiltins()
+        {
+            AddExportedType(typeof(byte));
+            AddExportedType(typeof(sbyte));
+            AddExportedType(typeof(float));
+            AddExportedType(typeof(double));
+            AddExportedType(typeof(string));
+            AddExportedType(typeof(int));
+            AddExportedType(typeof(uint));
+            AddExportedType(typeof(short));
+            AddExportedType(typeof(ushort));
+            AddExportedType(typeof(object));
+            AddExportedType(typeof(Array));
+            AddExportedType(typeof(Object));
+            AddExportedType(typeof(Vector3));
+        }
+
+        // implicitExport: 默认进行导出(黑名单例外), 否则根据导出标记或手工添加
+        private void ExportAssemblies(List<string> assemblyNames, bool implicitExport)
+        {
+            foreach (var assemblyName in assemblyNames)
+            {
+                log.AppendLine("assembly: {0}", assemblyName);
+                log.AddTabLevel();
+                try
+                {
+                    var assembly = Assembly.Load(assemblyName);
+                    var types = assembly.GetExportedTypes();
+
+                    log.AppendLine("types {0}", types.Length);
+                    foreach (var type in types)
+                    {
+                        if (IsExportingBlocked(type))
+                        {
+                            log.AppendLine("blocked: {0}", type.FullName);
+                            continue;
+                        }
+                        if (implicitExport || IsExportingExplicit(type))
+                        {
+                            log.AppendLine("export: {0}", type.FullName);
+                            this.AddExportedType(type);
+                            continue;
+                        }
+                        log.AppendLine("skip: {0}", type.FullName);
+                    }
+                }
+                catch (Exception exception)
+                {
+                    log.AppendLine(exception.ToString());
+                }
+                log.DecTabLevel();
+            }
+        }
+
+        // 清理多余文件
+        public void Cleanup()
+        {
+            log.AppendLine("cleanup");
+            log.AddTabLevel();
+            Cleanup(prefs.outDir, outputFiles, file =>
+            {
+                removedFiles.Add(file);
+                log.AppendLine("remove unused file {0}", file);
+            });
+            OnCleanup();
+            log.DecTabLevel();
+        }
+
+        public static void Cleanup(string outDir, List<string> excludedFiles, Action<string> ondelete)
+        {
+            foreach (var file in Directory.GetFiles(outDir))
+            {
+                var nfile = file;
+                if (file.EndsWith(".meta"))
+                {
+                    nfile = file.Substring(0, file.Length - 5);
+                }
+                // Debug.LogFormat("checking file {0}", nfile);
+                if (excludedFiles == null || !excludedFiles.Contains(nfile))
+                {
+                    File.Delete(file);
+                    if (ondelete != null)
+                    {
+                        ondelete(file);
+                    }
+                }
+            }
+        }
+
+        public void AddOutputFile(string filename)
+        {
+            outputFiles.Add(filename);
+        }
+
+        public void Generate()
+        {
+            var cg = new CodeGenerator(this);
+            var outDir = prefs.outDir;
+            var tx = prefs.extraExt;
+            // var tx = "";
+            if (!Directory.Exists(outDir))
+            {
+                Directory.CreateDirectory(outDir);
+            }
+            var cancel = false;
+            var current = 0;
+            var total = exportedTypes.Count;
+            foreach (var typeKV in exportedTypes)
+            {
+                var typeBindingInfo = typeKV.Value;
+                try
+                {
+                    current++;
+                    cancel = EditorUtility.DisplayCancelableProgressBar(
+                        "Generating",
+                        $"{current}/{total}: {typeBindingInfo.FullName}",
+                        (float)current / total);
+                    if (cancel)
+                    {
+                        Warn("operation canceled");
+                        break;
+                    }
+                    if (!typeBindingInfo.omit)
+                    {
+                        cg.Clear();
+                        OnPreGenerateType(typeBindingInfo);
+                        cg.Generate(typeBindingInfo);
+                        OnPostGenerateType(typeBindingInfo);
+                        cg.WriteTo(outDir, typeBindingInfo.GetFileName(), tx);
+                    }
+                }
+                catch (Exception exception)
+                {
+                    Error($"generate failed {typeBindingInfo.type.FullName}: {exception.Message}");
+                    Debug.LogError(exception.StackTrace);
+                }
+            }
+
+            if (!cancel)
+            {
+                try
+                {
+                    var exportedDelegatesArray = new DelegateBindingInfo[this.exportedDelegates.Count];
+                    this.exportedDelegates.Values.CopyTo(exportedDelegatesArray, 0);
+
+                    cg.Clear();
+                    cg.Generate(exportedDelegatesArray);
+                    // cg.tsSource.enabled = false;
+                    cg.WriteTo(outDir, DuktapeVM._DuktapeDelegates, tx);
+                }
+                catch (Exception exception)
+                {
+                    Error($"generate delegates failed: {exception.Message}");
+                    Debug.LogError(exception.StackTrace);
+                }
+            }
+
+            var logPath = prefs.logPath;
+            File.WriteAllText(logPath, log.ToString());
+            EditorUtility.ClearProgressBar();
+        }
+
+        public void Report()
+        {
+            var now = DateTime.Now;
+            var ts = now.Subtract(dateTime);
+            Debug.LogFormat("generated {0} type(s), {1} delegate(s), {2} deletion(s) in {3:0.##} seconds.",
+                exportedTypes.Count,
+                exportedDelegates.Count,
+                removedFiles.Count,
+                ts.TotalSeconds);
+        }
+    }
 }
\ No newline at end of file
diff --git a/unity/Assets/Duktape/Editor/CodeGenHelper_Method.cs b/unity/Assets/Duktape/Editor/CodeGenHelper_Method.cs
index b9186f1..f95daaa 100644
--- a/unity/Assets/Duktape/Editor/CodeGenHelper_Method.cs
+++ b/unity/Assets/Duktape/Editor/CodeGenHelper_Method.cs
@@ -1,608 +1,608 @@
-using System;
-using System.Collections.Generic;
-using System.Text;
-using System.IO;
-using System.Reflection;
-
-namespace Duktape
-{
-    using UnityEngine;
-    using UnityEditor;
-
-    public abstract class MethodBaseCodeGen<T> : IDisposable
-    where T : MethodBase
-    {
-        protected CodeGenerator cg;
-
-        // 方法参数数比较, 用于列表排序
-        public static int MethodComparer(T a, T b)
-        {
-            var va = a.GetParameters().Length;
-            var vb = b.GetParameters().Length;
-            return va > vb ? 1 : ((va == vb) ? 0 : -1);
-        }
-
-        public MethodBaseCodeGen(CodeGenerator cg)
-        {
-            this.cg = cg;
-        }
-
-        protected virtual void OnBegin()
-        {
-        }
-
-        public virtual void Dispose()
-        {
-        }
-
-        public string GetParamArrayMatchType(T method)
-        {
-            var parameters = method.GetParameters();
-            var parameter = parameters[parameters.Length - 1];
-            var typename = this.cg.bindingManager.GetCSTypeFullName(parameter.ParameterType.GetElementType());
-            return $"typeof({typename})";
-        }
-
-        // 生成定参部分 type 列表 (首参前也会补",")
-        public string GetFixedMatchTypes(T method)
-        {
-            var snippet = "";
-            var parameters = method.GetParameters();
-            for (int i = 0, length = parameters.Length; i < length; i++)
-            {
-                var parameter = parameters[i];
-                if (parameter.IsDefined(typeof(ParamArrayAttribute), false))
-                {
-                    break;
-                }
-                snippet += ", ";
-                if (parameter.ParameterType.IsByRef)
-                {
-                    //TODO: 检查 ref/out 参数有效请 (null undefined 或者 符合 Ref/Out 约定)
-                    snippet += "null";
-                }
-                else
-                {
-                    var typename = this.cg.bindingManager.GetCSTypeFullName(parameter.ParameterType);
-                    snippet += $"typeof({typename})";
-                }
-            }
-            return snippet;
-        }
-
-        // parametersByRef: 可修改参数将被加入此列表
-        // hasParams: 是否包含变参 (最后一个参数将按数组处理)
-        public string AppendGetParameters(bool hasParams, string nargs, ParameterInfo[] parameters, List<ParameterInfo> parametersByRef)
-        {
-            var arglist = "";
-            var argBase = 0;
-            for (var i = argBase; i < parameters.Length; i++)
-            {
-                var parameter = parameters[i];
-                if (parameter.IsOut && parameter.ParameterType.IsByRef)
-                {
-                    arglist += "out ";
-                    if (parametersByRef != null)
-                    {
-                        parametersByRef.Add(parameter);
-                    }
-                }
-                else if (parameter.ParameterType.IsByRef)
-                {
-                    arglist += "ref ";
-                    if (parametersByRef != null)
-                    {
-                        parametersByRef.Add(parameter);
-                    }
-                }
-                arglist += "arg" + i;
-                if (i != parameters.Length - 1)
-                {
-                    arglist += ", ";
-                }
-                if (hasParams && i == parameters.Length - 1)
-                {
-                    // 处理数组
-                    var argType = this.cg.bindingManager.GetCSTypeFullName(parameter.ParameterType);
-                    var argElementType = this.cg.bindingManager.GetCSTypeFullName(parameter.ParameterType.GetElementType());
-                    var argElementIndex = i == 0 ? nargs : nargs + " - " + i;
-                    this.cg.cs.AppendLine($"{argType} arg{i} = null;");
-                    this.cg.cs.AppendLine($"if ({argElementIndex} > 0)");
-                    this.cg.cs.AppendLine("{");
-                    this.cg.cs.AddTabLevel();
-                    {
-                        this.cg.cs.AppendLine($"arg{i} = new {argElementType}[{argElementIndex}];");
-                        this.cg.cs.AppendLine($"for (var i = {i}; i < {nargs}; i++)");
-                        this.cg.cs.AppendLine("{");
-                        this.cg.cs.AddTabLevel();
-                        {
-                            var argElementGetterOp = this.cg.bindingManager.GetDuktapeGetter(parameter.ParameterType.GetElementType());
-                            var argElementOffset = i == 0 ? "" : " - " + i;
-                            this.cg.cs.AppendLine($"{argElementGetterOp}(ctx, i, out arg{i}[i{argElementOffset}]);");
-                        }
-                        this.cg.cs.DecTabLevel();
-                        this.cg.cs.AppendLine("}");
-                    }
-                    this.cg.cs.DecTabLevel();
-                    this.cg.cs.AppendLine("}");
-                }
-                else
-                {
-                    WriteParameterGetter(parameter, i, $"arg{i}");
-                }
-            }
-            return arglist;
-        }
-
-        protected void WriteParameterGetter(ParameterInfo parameter, int index, string argname)
-        {
-            var ptype = parameter.ParameterType;
-            var argType = this.cg.bindingManager.GetCSTypeFullName(ptype);
-            this.cg.cs.AppendLine($"{argType} {argname};");
-            // 非 out 参数才需要取值
-            if (!parameter.IsOut || !parameter.ParameterType.IsByRef)
-            {
-                var argGetterOp = this.cg.bindingManager.GetDuktapeGetter(ptype);
-                this.cg.cs.AppendLine($"{argGetterOp}(ctx, {index}, out {argname});");
-            }
-        }
-
-        // 输出所有变体绑定
-        // hasOverrides: 是否需要处理重载
-        protected void WriteAllVariants(MethodBaseBindingInfo<T> bindingInfo) // SortedDictionary<int, MethodBaseVariant<T>> variants)
-        {
-            var variants = bindingInfo.variants;
-            var hasOverrides = bindingInfo.count > 1;
-            if (hasOverrides)
-            {
-                // 需要处理重载
-                GenMethodVariants(variants);
-            }
-            else
-            {
-                // 没有重载的情况 (variants.Count == 1)
-                foreach (var variantKV in variants)
-                {
-                    var args = variantKV.Key;
-                    var variant = variantKV.Value;
-                    var argc = cg.AppendGetArgCount(variant.isVararg);
-
-                    if (variant.isVararg)
-                    {
-                        var method = variant.varargMethods[0];
-                        // Debug.Log($"varargMethods {method}");
-                        WriteCSMethodBinding(method, argc, true);
-                    }
-                    else
-                    {
-                        var method = variant.plainMethods[0];
-                        // Debug.Log($"plainMethods {method}");
-                        WriteCSMethodBinding(method, argc, false);
-                    }
-                }
-            }
-        }
-
-        protected void WriteTSAllVariants(MethodBaseBindingInfo<T> bindingInfo)
-        {
-            var variants = bindingInfo.variants;
-            //TODO: 如果产生了无法在 typescript 中声明的方法, 则作标记, 并输出一条万能声明 
-            //      [key: string]: any
-            foreach (var variantKV in variants)
-            {
-                foreach (var method in variantKV.Value.plainMethods)
-                {
-                    WriteTSDeclaration(method, bindingInfo);
-                }
-                foreach (var method in variantKV.Value.varargMethods)
-                {
-                    WriteTSDeclaration(method, bindingInfo);
-                }
-            }
-        }
-
-        // 写入返回类型声明
-        protected virtual void WriteTSReturn(T method, List<ParameterInfo> returnParameters)
-        {
-            var returnType = GetReturnType(method);
-            if (returnType != null)
-            {
-                var returnTypeTS = this.cg.bindingManager.GetTSTypeFullName(returnType);
-                this.cg.tsDeclare.AppendL($": {returnTypeTS}");
-                this.cg.tsDeclare.AppendLine();
-            }
-            else
-            {
-                this.cg.tsDeclare.AppendLine();
-            }
-        }
-
-        protected void GenMethodVariants(SortedDictionary<int, MethodBaseVariant<T>> variants)
-        {
-            var argc = cg.AppendGetArgCount(true);
-            cg.cs.AppendLine("do");
-            cg.cs.AppendLine("{");
-            cg.cs.AddTabLevel();
-            {
-                foreach (var variantKV in variants)
-                {
-                    var args = variantKV.Key;
-                    var variant = variantKV.Value;
-                    //variant.count > 1
-                    var gecheck = args > 0 && variant.isVararg; // 最后一组分支且存在变参时才需要判断 >= 
-                    if (gecheck)
-                    {
-                        cg.cs.AppendLine("if (argc >= {0})", args);
-                        cg.cs.AppendLine("{");
-                        cg.cs.AddTabLevel();
-                    }
-                    // 处理定参
-                    if (variant.plainMethods.Count > 0)
-                    {
-                        cg.cs.AppendLine("if (argc == {0})", args);
-                        cg.cs.AppendLine("{");
-                        cg.cs.AddTabLevel();
-                        if (variant.plainMethods.Count > 1)
-                        {
-                            foreach (var method in variant.plainMethods)
-                            {
-                                cg.cs.AppendLine($"if (duk_match_types(ctx, argc{GetFixedMatchTypes(method)}))");
-                                cg.cs.AppendLine("{");
-                                cg.cs.AddTabLevel();
-                                this.WriteCSMethodBinding(method, argc, false);
-                                cg.cs.DecTabLevel();
-                                cg.cs.AppendLine("}");
-                            }
-                            cg.cs.AppendLine("break;");
-                        }
-                        else
-                        {
-                            // 只有一个定参方法时, 不再判定类型匹配
-                            var method = variant.plainMethods[0];
-                            this.WriteCSMethodBinding(method, argc, false);
-                        }
-                        cg.cs.DecTabLevel();
-                        cg.cs.AppendLine("}");
-                    }
-                    // 处理变参
-                    if (variant.varargMethods.Count > 0)
-                    {
-                        foreach (var method in variant.varargMethods)
-                        {
-                            cg.cs.AppendLine($"if (duk_match_types(ctx, argc{GetFixedMatchTypes(method)})");
-                            cg.cs.AppendLine($" && duk_match_param_types(ctx, {args}, argc, {GetParamArrayMatchType(method)}))");
-                            cg.cs.AppendLine("{");
-                            cg.cs.AddTabLevel();
-                            this.WriteCSMethodBinding(method, argc, true);
-                            cg.cs.DecTabLevel();
-                            cg.cs.AppendLine("}");
-                        }
-                    }
-                    if (gecheck)
-                    {
-                        cg.cs.DecTabLevel();
-                        cg.cs.AppendLine("}");
-                    }
-                }
-            }
-            cg.cs.DecTabLevel();
-            cg.cs.AppendLine("} while(false);");
-            var error = this.cg.bindingManager.GetDuktapeGenericError("no matched method variant");
-            cg.cs.AppendLine($"return {error}");
-        }
-
-        protected List<ParameterInfo> WriteTSDeclaration(T method, MethodBaseBindingInfo<T> bindingInfo)
-        {
-            var isExtension = method.IsDefined(typeof(System.Runtime.CompilerServices.ExtensionAttribute));
-            var refParameters = new List<ParameterInfo>();
-            string tsMethodDeclaration;
-            if (this.cg.bindingManager.GetTSMethodDeclaration(method, out tsMethodDeclaration))
-            {
-                this.cg.tsDeclare.AppendLine(tsMethodDeclaration);
-                return refParameters;
-            }
-            //TODO: 需要处理参数类型归并问题, 因为如果类型没有导入 ts 中, 可能会在声明中出现相同参数列表的定义
-            //      在 MethodVariant 中创建每个方法对应的TS类型名参数列表, 完全相同的不再输出
-            this.cg.AppendJSDoc(method);
-            var prefix = "";
-            if (method.IsStatic && !isExtension)
-            {
-                prefix = "static ";
-            }
-            string tsMethodRename;
-            if (this.cg.bindingManager.GetTSMethodRename(method, out tsMethodRename))
-            {
-                this.cg.tsDeclare.Append($"{prefix}{tsMethodRename}(");
-            }
-            else
-            {
-                this.cg.tsDeclare.Append($"{prefix}{bindingInfo.regName}(");
-            }
-            var parameters = method.GetParameters();
-            if (isExtension)
-            {
-                ArrayUtility.RemoveAt(ref parameters, 0);
-            }
-            for (var i = 0; i < parameters.Length; i++)
-            {
-                var parameter = parameters[i];
-                var parameter_prefix = "";
-                var parameterType = parameter.ParameterType;
-                if (parameter.IsOut && parameterType.IsByRef)
-                {
-                    // parameter_prefix = "/*out*/ ";
-                    refParameters.Add(parameter);
-                }
-                else if (parameterType.IsByRef)
-                {
-                    // parameter_prefix = "/*ref*/ ";
-                    refParameters.Add(parameter);
-                }
-                if (parameter.IsDefined(typeof(ParamArrayAttribute), false) && i == parameters.Length - 1)
-                {
-                    var elementType = parameterType.GetElementType();
-                    var elementTS = this.cg.bindingManager.GetTSTypeFullName(elementType);
-                    var parameterVarName = BindingManager.GetTSVariable(parameter.Name);
-                    this.cg.tsDeclare.AppendL($"{parameter_prefix}...{parameterVarName}: {elementTS}[]");
-                }
-                else
-                {
-                    var parameterTS = this.cg.bindingManager.GetTSTypeFullName(parameterType, parameter.IsOut);
-                    var parameterVarName = BindingManager.GetTSVariable(parameter.Name);
-                    this.cg.tsDeclare.AppendL($"{parameter_prefix}{parameterVarName}: {parameterTS}");
-                }
-                if (i != parameters.Length - 1)
-                {
-                    this.cg.tsDeclare.AppendL(", ");
-                }
-            }
-            this.cg.tsDeclare.AppendL($")");
-            WriteTSReturn(method, refParameters);
-            return refParameters;
-        }
-
-        // 获取返回值类型
-        protected abstract Type GetReturnType(T method);
-
-        // 获取方法调用
-        protected abstract string GetInvokeBinding(string caller, T method, bool hasParams, bool isExtension, string nargs, ParameterInfo[] parameters, List<ParameterInfo> parametersByRef);
-
-        protected virtual void BeginInvokeBinding() { }
-
-        protected virtual void EndInvokeBinding() { }
-
-        // 写入绑定代码
-        protected void WriteCSMethodBinding(T method, string argc, bool isVararg)
-        {
-            var parameters = method.GetParameters();
-            var isExtension = method.IsDefined(typeof(System.Runtime.CompilerServices.ExtensionAttribute));
-            if (isExtension)
-            {
-                ArrayUtility.RemoveAt(ref parameters, 0);
-            }
-            var parametersByRef = new List<ParameterInfo>();
-            var caller = this.cg.AppendGetThisCS(method);
-            var returnType = GetReturnType(method);
-
-            if (returnType == null || returnType == typeof(void))
-            {
-                // 方法本身没有返回值
-                this.BeginInvokeBinding();
-                cg.cs.AppendLine($"{this.GetInvokeBinding(caller, method, isVararg, isExtension, argc, parameters, parametersByRef)};");
-                this.EndInvokeBinding();
-                if (parametersByRef.Count > 0)
-                {
-                    _WriteBackParametersByRef(isExtension, parametersByRef);
-
-                }
-                if (!method.IsStatic && method.DeclaringType.IsValueType) // struct 非静态方法 检查 Mutable 属性
-                {
-                    if (!string.IsNullOrEmpty(caller))
-                    {
-                        cg.cs.AppendLine($"duk_rebind_this(ctx, {caller});");
-                    }
-                }
-                cg.cs.AppendLine("return 0;");
-            }
-            else
-            {
-                // 方法本身有返回值
-                this.BeginInvokeBinding();
-                cg.cs.AppendLine($"var ret = {this.GetInvokeBinding(caller, method, isVararg, isExtension, argc, parameters, parametersByRef)};");
-                this.EndInvokeBinding();
-                if (parametersByRef.Count > 0)
-                {
-                    _WriteBackParametersByRef(isExtension, parametersByRef);
-                }
-                cg.AppendPushValue(returnType, "ret");
-                cg.cs.AppendLine("return 1;");
-            }
-        }
-
-        // 回填 ref/out 参数
-        //TODO: !!! 扩展方法参数索引需要偏移
-        protected void _WriteBackParametersByRef(bool isExtension, List<ParameterInfo> parametersByRef)
-        {
-            for (var i = 0; i < parametersByRef.Count; i++)
-            {
-                var parameter = parametersByRef[i];
-                var position = isExtension ? parameter.Position - 1 : parameter.Position;
-                cg.cs.AppendLine($"if (!DuktapeDLL.duk_is_null_or_undefined(ctx, {position}))");
-                cg.cs.AppendLine("{");
-                cg.cs.AddTabLevel();
-                var argname = $"arg{position}";
-                cg.AppendPushValue(parameter.ParameterType, argname);
-                cg.cs.AppendLine($"DuktapeDLL.duk_unity_put_target_i(ctx, {position});");
-                cg.cs.DecTabLevel();
-                cg.cs.AppendLine("}");
-            }
-        }
-    }
-
-    public class ConstructorCodeGen : MethodBaseCodeGen<ConstructorInfo>
-    {
-        private ConstructorBindingInfo bindingInfo;
-
-        protected override Type GetReturnType(ConstructorInfo method)
-        {
-            return null;
-        }
-
-        protected override string GetInvokeBinding(string caller, ConstructorInfo method, bool hasParams, bool isExtension, string nargs, ParameterInfo[] parameters, List<ParameterInfo> parametersByRef)
-        {
-            var arglist = this.AppendGetParameters(hasParams, nargs, parameters, parametersByRef);
-            var decalringTypeName = this.cg.bindingManager.GetCSTypeFullName(this.bindingInfo.decalringType);
-            return $"var o = new {decalringTypeName}({arglist})";
-        }
-
-        protected override void EndInvokeBinding()
-        {
-            this.cg.cs.AppendLine("duk_bind_native(ctx, o);");
-        }
-
-        public ConstructorCodeGen(CodeGenerator cg, TypeBindingInfo bindingInfo)
-        : base(cg)
-        {
-            // WriteInstanceEvents(bindingInfo);
-            this.bindingInfo = bindingInfo.constructors;
-            if (this.bindingInfo.count > 0)
-            {
-                WriteAllVariants(this.bindingInfo);
-                WriteTSAllVariants(this.bindingInfo);
-            }
-            else
-            {
-                WriteDefaultConstructorBinding();
-            }
-        }
-
-        // private void WriteInstanceEvents(TypeBindingInfo bindingInfo)
-        // {
-        //     var eventBindingInfos = new List<EventBindingInfo>();
-        //     foreach (var kv in bindingInfo.events)
-        //     {
-        //         var eventBindingInfo = kv.Value;
-        //         var bStatic = eventBindingInfo.isStatic;
-        //         if (!bStatic)
-        //         {
-        //             eventBindingInfos.Add(eventBindingInfo);
-        //         }
-        //     }
-        //     if (eventBindingInfos.Count > 0)
-        //     {
-        //         // Debug.Log($"Writing instance events... {bindingInfo.type}");
-        //         this.cg.cs.AppendLine("DuktapeDLL.duk_push_this(ctx);");
-        //         foreach (var eventBindingInfo in eventBindingInfos)
-        //         {
-        //             var tsFieldVar = BindingManager.GetTSVariable(eventBindingInfo.regName);
-        //             cg.cs.AppendLine($"duk_add_event(ctx, \"{tsFieldVar}\", {eventBindingInfo.adderName}, {eventBindingInfo.removerName}, -1);");
-        //         }
-        //         this.cg.cs.AppendLine("DuktapeDLL.duk_pop(ctx);");
-        //     }
-        // }
-
-        // 写入默认构造函数 (struct 无参构造)
-        private void WriteDefaultConstructorBinding()
-        {
-            var decalringTypeName = this.cg.bindingManager.GetCSTypeFullName(this.bindingInfo.decalringType);
-            this.cg.cs.AppendLine($"var o = new {decalringTypeName}();");
-            this.cg.cs.AppendLine("duk_bind_native(ctx, o);");
-            this.cg.cs.AppendLine("return 0;");
-
-            this.cg.tsDeclare.AppendLine($"{this.bindingInfo.regName}()");
-        }
-    }
-
-    // 生成成员方法绑定代码
-    public class MethodCodeGen : MethodBaseCodeGen<MethodInfo>
-    {
-        protected MethodBindingInfo bindingInfo;
-
-        protected override Type GetReturnType(MethodInfo method)
-        {
-            return method.ReturnType;
-        }
-
-        protected override string GetInvokeBinding(string caller, MethodInfo method, bool hasParams, bool isExtension, string nargs, ParameterInfo[] parameters, List<ParameterInfo> parametersByRef)
-        {
-            if (bindingInfo.isIndexer)
-            {
-                if (method.ReturnType == typeof(void))
-                {
-                    var last = parameters.Length - 1;
-                    var arglist_t = "";
-                    for (var i = 0; i < last; i++)
-                    {
-                        var argname = $"arg{i}";
-                        this.WriteParameterGetter(parameters[i], i, argname);
-                        arglist_t += argname;
-                        if (i != last - 1)
-                        {
-                            arglist_t += ", ";
-                        }
-                    }
-                    var argname_last = $"arg{last}";
-                    this.WriteParameterGetter(parameters[last], last, argname_last);
-                    return $"{caller}[{arglist_t}] = {argname_last}"; // setter
-                }
-                else
-                {
-                    var last = parameters.Length;
-                    var arglist_t = "";
-                    for (var i = 0; i < last; i++)
-                    {
-                        var argname = $"arg{i}";
-                        this.WriteParameterGetter(parameters[i], i, argname);
-                        arglist_t += argname;
-                        if (i != last - 1)
-                        {
-                            arglist_t += ", ";
-                        }
-                    }
-                    return $"{caller}[{arglist_t}]"; // getter
-                }
-            }
-            var arglist = this.AppendGetParameters(hasParams, nargs, parameters, parametersByRef);
-            if (isExtension)
-            {
-                var methodDeclType = this.cg.bindingManager.GetCSTypeFullName(method.DeclaringType);
-                if (arglist.Length > 0)
-                {
-                    arglist = ", " + arglist;
-                }
-                return $"{methodDeclType}.{method.Name}({caller}{arglist})";
-            }
-            return $"{caller}.{method.Name}({arglist})";
-        }
-
-        public MethodCodeGen(CodeGenerator cg, MethodBindingInfo bindingInfo)
-        : base(cg)
-        {
-            this.bindingInfo = bindingInfo;
-            WriteAllVariants(this.bindingInfo);
-            // WriteTSAllVariants(this.bindingInfo);
-        }
-    }
-
-    public class TSMethodCodeGen : MethodBaseCodeGen<MethodInfo>
-    {
-        protected MethodBindingInfo bindingInfo;
-
-        protected override Type GetReturnType(MethodInfo method)
-        {
-            return method.ReturnType;
-        }
-
-        protected override string GetInvokeBinding(string caller, MethodInfo method, bool hasParams, bool isExtension, string nargs, ParameterInfo[] parameters, List<ParameterInfo> parametersByRef)
-        {
-            return null;
-        }
-
-        public TSMethodCodeGen(CodeGenerator cg, MethodBindingInfo bindingInfo)
-        : base(cg)
-        {
-            this.bindingInfo = bindingInfo;
-            WriteTSAllVariants(this.bindingInfo);
-        }
-    }
-}
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.IO;
+using System.Reflection;
+
+namespace Duktape
+{
+    using UnityEngine;
+    using UnityEditor;
+
+    public abstract class MethodBaseCodeGen<T> : IDisposable
+    where T : MethodBase
+    {
+        protected CodeGenerator cg;
+
+        // 方法参数数比较, 用于列表排序
+        public static int MethodComparer(T a, T b)
+        {
+            var va = a.GetParameters().Length;
+            var vb = b.GetParameters().Length;
+            return va > vb ? 1 : ((va == vb) ? 0 : -1);
+        }
+
+        public MethodBaseCodeGen(CodeGenerator cg)
+        {
+            this.cg = cg;
+        }
+
+        protected virtual void OnBegin()
+        {
+        }
+
+        public virtual void Dispose()
+        {
+        }
+
+        public string GetParamArrayMatchType(T method)
+        {
+            var parameters = method.GetParameters();
+            var parameter = parameters[parameters.Length - 1];
+            var typename = this.cg.bindingManager.GetCSTypeFullName(parameter.ParameterType.GetElementType());
+            return $"typeof({typename})";
+        }
+
+        // 生成定参部分 type 列表 (首参前也会补",")
+        public string GetFixedMatchTypes(T method)
+        {
+            var snippet = "";
+            var parameters = method.GetParameters();
+            for (int i = 0, length = parameters.Length; i < length; i++)
+            {
+                var parameter = parameters[i];
+                if (parameter.IsDefined(typeof(ParamArrayAttribute), false))
+                {
+                    break;
+                }
+                snippet += ", ";
+                if (parameter.ParameterType.IsByRef)
+                {
+                    //TODO: 检查 ref/out 参数有效请 (null undefined 或者 符合 Ref/Out 约定)
+                    snippet += "null";
+                }
+                else
+                {
+                    var typename = this.cg.bindingManager.GetCSTypeFullName(parameter.ParameterType);
+                    snippet += $"typeof({typename})";
+                }
+            }
+            return snippet;
+        }
+
+        // parametersByRef: 可修改参数将被加入此列表
+        // hasParams: 是否包含变参 (最后一个参数将按数组处理)
+        public string AppendGetParameters(bool hasParams, string nargs, ParameterInfo[] parameters, List<ParameterInfo> parametersByRef)
+        {
+            var arglist = "";
+            var argBase = 0;
+            for (var i = argBase; i < parameters.Length; i++)
+            {
+                var parameter = parameters[i];
+                if (parameter.IsOut && parameter.ParameterType.IsByRef)
+                {
+                    arglist += "out ";
+                    if (parametersByRef != null)
+                    {
+                        parametersByRef.Add(parameter);
+                    }
+                }
+                else if (parameter.ParameterType.IsByRef)
+                {
+                    arglist += "ref ";
+                    if (parametersByRef != null)
+                    {
+                        parametersByRef.Add(parameter);
+                    }
+                }
+                arglist += "arg" + i;
+                if (i != parameters.Length - 1)
+                {
+                    arglist += ", ";
+                }
+                if (hasParams && i == parameters.Length - 1)
+                {
+                    // 处理数组
+                    var argType = this.cg.bindingManager.GetCSTypeFullName(parameter.ParameterType);
+                    var argElementType = this.cg.bindingManager.GetCSTypeFullName(parameter.ParameterType.GetElementType());
+                    var argElementIndex = i == 0 ? nargs : nargs + " - " + i;
+                    this.cg.cs.AppendLine($"{argType} arg{i} = null;");
+                    this.cg.cs.AppendLine($"if ({argElementIndex} > 0)");
+                    this.cg.cs.AppendLine("{");
+                    this.cg.cs.AddTabLevel();
+                    {
+                        this.cg.cs.AppendLine($"arg{i} = new {argElementType}[{argElementIndex}];");
+                        this.cg.cs.AppendLine($"for (var i = {i}; i < {nargs}; i++)");
+                        this.cg.cs.AppendLine("{");
+                        this.cg.cs.AddTabLevel();
+                        {
+                            var argElementGetterOp = this.cg.bindingManager.GetDuktapeGetter(parameter.ParameterType.GetElementType());
+                            var argElementOffset = i == 0 ? "" : " - " + i;
+                            this.cg.cs.AppendLine($"{argElementGetterOp}(ctx, i, out arg{i}[i{argElementOffset}]);");
+                        }
+                        this.cg.cs.DecTabLevel();
+                        this.cg.cs.AppendLine("}");
+                    }
+                    this.cg.cs.DecTabLevel();
+                    this.cg.cs.AppendLine("}");
+                }
+                else
+                {
+                    WriteParameterGetter(parameter, i, $"arg{i}");
+                }
+            }
+            return arglist;
+        }
+
+        protected void WriteParameterGetter(ParameterInfo parameter, int index, string argname)
+        {
+            var ptype = parameter.ParameterType;
+            var argType = this.cg.bindingManager.GetCSTypeFullName(ptype);
+            this.cg.cs.AppendLine($"{argType} {argname};");
+            // 非 out 参数才需要取值
+            if (!parameter.IsOut || !parameter.ParameterType.IsByRef)
+            {
+                var argGetterOp = this.cg.bindingManager.GetDuktapeGetter(ptype);
+                this.cg.cs.AppendLine($"{argGetterOp}(ctx, {index}, out {argname});");
+            }
+        }
+
+        // 输出所有变体绑定
+        // hasOverrides: 是否需要处理重载
+        protected void WriteAllVariants(MethodBaseBindingInfo<T> bindingInfo) // SortedDictionary<int, MethodBaseVariant<T>> variants)
+        {
+            var variants = bindingInfo.variants;
+            var hasOverrides = bindingInfo.count > 1;
+            if (hasOverrides)
+            {
+                // 需要处理重载
+                GenMethodVariants(variants);
+            }
+            else
+            {
+                // 没有重载的情况 (variants.Count == 1)
+                foreach (var variantKV in variants)
+                {
+                    var args = variantKV.Key;
+                    var variant = variantKV.Value;
+                    var argc = cg.AppendGetArgCount(variant.isVararg);
+
+                    if (variant.isVararg)
+                    {
+                        var method = variant.varargMethods[0];
+                        // Debug.Log($"varargMethods {method}");
+                        WriteCSMethodBinding(method, argc, true);
+                    }
+                    else
+                    {
+                        var method = variant.plainMethods[0];
+                        // Debug.Log($"plainMethods {method}");
+                        WriteCSMethodBinding(method, argc, false);
+                    }
+                }
+            }
+        }
+
+        protected void WriteTSAllVariants(MethodBaseBindingInfo<T> bindingInfo)
+        {
+            var variants = bindingInfo.variants;
+            //TODO: 如果产生了无法在 typescript 中声明的方法, 则作标记, 并输出一条万能声明 
+            //      [key: string]: any
+            foreach (var variantKV in variants)
+            {
+                foreach (var method in variantKV.Value.plainMethods)
+                {
+                    WriteTSDeclaration(method, bindingInfo);
+                }
+                foreach (var method in variantKV.Value.varargMethods)
+                {
+                    WriteTSDeclaration(method, bindingInfo);
+                }
+            }
+        }
+
+        // 写入返回类型声明
+        protected virtual void WriteTSReturn(T method, List<ParameterInfo> returnParameters)
+        {
+            var returnType = GetReturnType(method);
+            if (returnType != null)
+            {
+                var returnTypeTS = this.cg.bindingManager.GetTSTypeFullName(returnType);
+                this.cg.tsDeclare.AppendL($": {returnTypeTS}");
+                this.cg.tsDeclare.AppendLine();
+            }
+            else
+            {
+                this.cg.tsDeclare.AppendLine();
+            }
+        }
+
+        protected void GenMethodVariants(SortedDictionary<int, MethodBaseVariant<T>> variants)
+        {
+            var argc = cg.AppendGetArgCount(true);
+            cg.cs.AppendLine("do");
+            cg.cs.AppendLine("{");
+            cg.cs.AddTabLevel();
+            {
+                foreach (var variantKV in variants)
+                {
+                    var args = variantKV.Key;
+                    var variant = variantKV.Value;
+                    //variant.count > 1
+                    var gecheck = args > 0 && variant.isVararg; // 最后一组分支且存在变参时才需要判断 >= 
+                    if (gecheck)
+                    {
+                        cg.cs.AppendLine("if (argc >= {0})", args);
+                        cg.cs.AppendLine("{");
+                        cg.cs.AddTabLevel();
+                    }
+                    // 处理定参
+                    if (variant.plainMethods.Count > 0)
+                    {
+                        cg.cs.AppendLine("if (argc == {0})", args);
+                        cg.cs.AppendLine("{");
+                        cg.cs.AddTabLevel();
+                        if (variant.plainMethods.Count > 1)
+                        {
+                            foreach (var method in variant.plainMethods)
+                            {
+                                cg.cs.AppendLine($"if (duk_match_types(ctx, argc{GetFixedMatchTypes(method)}))");
+                                cg.cs.AppendLine("{");
+                                cg.cs.AddTabLevel();
+                                this.WriteCSMethodBinding(method, argc, false);
+                                cg.cs.DecTabLevel();
+                                cg.cs.AppendLine("}");
+                            }
+                            cg.cs.AppendLine("break;");
+                        }
+                        else
+                        {
+                            // 只有一个定参方法时, 不再判定类型匹配
+                            var method = variant.plainMethods[0];
+                            this.WriteCSMethodBinding(method, argc, false);
+                        }
+                        cg.cs.DecTabLevel();
+                        cg.cs.AppendLine("}");
+                    }
+                    // 处理变参
+                    if (variant.varargMethods.Count > 0)
+                    {
+                        foreach (var method in variant.varargMethods)
+                        {
+                            cg.cs.AppendLine($"if (duk_match_types(ctx, argc{GetFixedMatchTypes(method)})");
+                            cg.cs.AppendLine($" && duk_match_param_types(ctx, {args}, argc, {GetParamArrayMatchType(method)}))");
+                            cg.cs.AppendLine("{");
+                            cg.cs.AddTabLevel();
+                            this.WriteCSMethodBinding(method, argc, true);
+                            cg.cs.DecTabLevel();
+                            cg.cs.AppendLine("}");
+                        }
+                    }
+                    if (gecheck)
+                    {
+                        cg.cs.DecTabLevel();
+                        cg.cs.AppendLine("}");
+                    }
+                }
+            }
+            cg.cs.DecTabLevel();
+            cg.cs.AppendLine("} while(false);");
+            var error = this.cg.bindingManager.GetDuktapeGenericError("no matched method variant");
+            cg.cs.AppendLine($"return {error}");
+        }
+
+        protected List<ParameterInfo> WriteTSDeclaration(T method, MethodBaseBindingInfo<T> bindingInfo)
+        {
+            var isExtension = method.IsDefined(typeof(System.Runtime.CompilerServices.ExtensionAttribute));
+            var refParameters = new List<ParameterInfo>();
+            string tsMethodDeclaration;
+            if (this.cg.bindingManager.GetTSMethodDeclaration(method, out tsMethodDeclaration))
+            {
+                this.cg.tsDeclare.AppendLine(tsMethodDeclaration);
+                return refParameters;
+            }
+            //TODO: 需要处理参数类型归并问题, 因为如果类型没有导入 ts 中, 可能会在声明中出现相同参数列表的定义
+            //      在 MethodVariant 中创建每个方法对应的TS类型名参数列表, 完全相同的不再输出
+            this.cg.AppendJSDoc(method);
+            var prefix = "";
+            if (method.IsStatic && !isExtension)
+            {
+                prefix = "static ";
+            }
+            string tsMethodRename;
+            if (this.cg.bindingManager.GetTSMethodRename(method, out tsMethodRename))
+            {
+                this.cg.tsDeclare.Append($"{prefix}{tsMethodRename}(");
+            }
+            else
+            {
+                this.cg.tsDeclare.Append($"{prefix}{bindingInfo.regName}(");
+            }
+            var parameters = method.GetParameters();
+            if (isExtension)
+            {
+                ArrayUtility.RemoveAt(ref parameters, 0);
+            }
+            for (var i = 0; i < parameters.Length; i++)
+            {
+                var parameter = parameters[i];
+                var parameter_prefix = "";
+                var parameterType = parameter.ParameterType;
+                if (parameter.IsOut && parameterType.IsByRef)
+                {
+                    // parameter_prefix = "/*out*/ ";
+                    refParameters.Add(parameter);
+                }
+                else if (parameterType.IsByRef)
+                {
+                    // parameter_prefix = "/*ref*/ ";
+                    refParameters.Add(parameter);
+                }
+                if (parameter.IsDefined(typeof(ParamArrayAttribute), false) && i == parameters.Length - 1)
+                {
+                    var elementType = parameterType.GetElementType();
+                    var elementTS = this.cg.bindingManager.GetTSTypeFullName(elementType);
+                    var parameterVarName = BindingManager.GetTSVariable(parameter.Name);
+                    this.cg.tsDeclare.AppendL($"{parameter_prefix}...{parameterVarName}: {elementTS}[]");
+                }
+                else
+                {
+                    var parameterTS = this.cg.bindingManager.GetTSTypeFullName(parameterType, parameter.IsOut);
+                    var parameterVarName = BindingManager.GetTSVariable(parameter.Name);
+                    this.cg.tsDeclare.AppendL($"{parameter_prefix}{parameterVarName}: {parameterTS}");
+                }
+                if (i != parameters.Length - 1)
+                {
+                    this.cg.tsDeclare.AppendL(", ");
+                }
+            }
+            this.cg.tsDeclare.AppendL($")");
+            WriteTSReturn(method, refParameters);
+            return refParameters;
+        }
+
+        // 获取返回值类型
+        protected abstract Type GetReturnType(T method);
+
+        // 获取方法调用
+        protected abstract string GetInvokeBinding(string caller, T method, bool hasParams, bool isExtension, string nargs, ParameterInfo[] parameters, List<ParameterInfo> parametersByRef);
+
+        protected virtual void BeginInvokeBinding() { }
+
+        protected virtual void EndInvokeBinding() { }
+
+        // 写入绑定代码
+        protected void WriteCSMethodBinding(T method, string argc, bool isVararg)
+        {
+            var parameters = method.GetParameters();
+            var isExtension = method.IsDefined(typeof(System.Runtime.CompilerServices.ExtensionAttribute));
+            if (isExtension)
+            {
+                ArrayUtility.RemoveAt(ref parameters, 0);
+            }
+            var parametersByRef = new List<ParameterInfo>();
+            var caller = this.cg.AppendGetThisCS(method);
+            var returnType = GetReturnType(method);
+
+            if (returnType == null || returnType == typeof(void))
+            {
+                // 方法本身没有返回值
+                this.BeginInvokeBinding();
+                cg.cs.AppendLine($"{this.GetInvokeBinding(caller, method, isVararg, isExtension, argc, parameters, parametersByRef)};");
+                this.EndInvokeBinding();
+                if (parametersByRef.Count > 0)
+                {
+                    _WriteBackParametersByRef(isExtension, parametersByRef);
+
+                }
+                if (!method.IsStatic && method.DeclaringType.IsValueType) // struct 非静态方法 检查 Mutable 属性
+                {
+                    if (!string.IsNullOrEmpty(caller))
+                    {
+                        cg.cs.AppendLine($"duk_rebind_this(ctx, {caller});");
+                    }
+                }
+                cg.cs.AppendLine("return 0;");
+            }
+            else
+            {
+                // 方法本身有返回值
+                this.BeginInvokeBinding();
+                cg.cs.AppendLine($"var ret = {this.GetInvokeBinding(caller, method, isVararg, isExtension, argc, parameters, parametersByRef)};");
+                this.EndInvokeBinding();
+                if (parametersByRef.Count > 0)
+                {
+                    _WriteBackParametersByRef(isExtension, parametersByRef);
+                }
+                cg.AppendPushValue(returnType, "ret");
+                cg.cs.AppendLine("return 1;");
+            }
+        }
+
+        // 回填 ref/out 参数
+        //TODO: !!! 扩展方法参数索引需要偏移
+        protected void _WriteBackParametersByRef(bool isExtension, List<ParameterInfo> parametersByRef)
+        {
+            for (var i = 0; i < parametersByRef.Count; i++)
+            {
+                var parameter = parametersByRef[i];
+                var position = isExtension ? parameter.Position - 1 : parameter.Position;
+                cg.cs.AppendLine($"if (!DuktapeDLL.duk_is_null_or_undefined(ctx, {position}))");
+                cg.cs.AppendLine("{");
+                cg.cs.AddTabLevel();
+                var argname = $"arg{position}";
+                cg.AppendPushValue(parameter.ParameterType, argname);
+                cg.cs.AppendLine($"DuktapeDLL.duk_unity_put_target_i(ctx, {position});");
+                cg.cs.DecTabLevel();
+                cg.cs.AppendLine("}");
+            }
+        }
+    }
+
+    public class ConstructorCodeGen : MethodBaseCodeGen<ConstructorInfo>
+    {
+        private ConstructorBindingInfo bindingInfo;
+
+        protected override Type GetReturnType(ConstructorInfo method)
+        {
+            return null;
+        }
+
+        protected override string GetInvokeBinding(string caller, ConstructorInfo method, bool hasParams, bool isExtension, string nargs, ParameterInfo[] parameters, List<ParameterInfo> parametersByRef)
+        {
+            var arglist = this.AppendGetParameters(hasParams, nargs, parameters, parametersByRef);
+            var decalringTypeName = this.cg.bindingManager.GetCSTypeFullName(this.bindingInfo.decalringType);
+            return $"var o = new {decalringTypeName}({arglist})";
+        }
+
+        protected override void EndInvokeBinding()
+        {
+            this.cg.cs.AppendLine("duk_bind_native(ctx, o);");
+        }
+
+        public ConstructorCodeGen(CodeGenerator cg, TypeBindingInfo bindingInfo)
+        : base(cg)
+        {
+            // WriteInstanceEvents(bindingInfo);
+            this.bindingInfo = bindingInfo.constructors;
+            if (this.bindingInfo.count > 0)
+            {
+                WriteAllVariants(this.bindingInfo);
+                WriteTSAllVariants(this.bindingInfo);
+            }
+            else
+            {
+                WriteDefaultConstructorBinding();
+            }
+        }
+
+        // private void WriteInstanceEvents(TypeBindingInfo bindingInfo)
+        // {
+        //     var eventBindingInfos = new List<EventBindingInfo>();
+        //     foreach (var kv in bindingInfo.events)
+        //     {
+        //         var eventBindingInfo = kv.Value;
+        //         var bStatic = eventBindingInfo.isStatic;
+        //         if (!bStatic)
+        //         {
+        //             eventBindingInfos.Add(eventBindingInfo);
+        //         }
+        //     }
+        //     if (eventBindingInfos.Count > 0)
+        //     {
+        //         // Debug.Log($"Writing instance events... {bindingInfo.type}");
+        //         this.cg.cs.AppendLine("DuktapeDLL.duk_push_this(ctx);");
+        //         foreach (var eventBindingInfo in eventBindingInfos)
+        //         {
+        //             var tsFieldVar = BindingManager.GetTSVariable(eventBindingInfo.regName);
+        //             cg.cs.AppendLine($"duk_add_event(ctx, \"{tsFieldVar}\", {eventBindingInfo.adderName}, {eventBindingInfo.removerName}, -1);");
+        //         }
+        //         this.cg.cs.AppendLine("DuktapeDLL.duk_pop(ctx);");
+        //     }
+        // }
+
+        // 写入默认构造函数 (struct 无参构造)
+        private void WriteDefaultConstructorBinding()
+        {
+            var decalringTypeName = this.cg.bindingManager.GetCSTypeFullName(this.bindingInfo.decalringType);
+            this.cg.cs.AppendLine($"var o = new {decalringTypeName}();");
+            this.cg.cs.AppendLine("duk_bind_native(ctx, o);");
+            this.cg.cs.AppendLine("return 0;");
+
+            this.cg.tsDeclare.AppendLine($"{this.bindingInfo.regName}()");
+        }
+    }
+
+    // 生成成员方法绑定代码
+    public class MethodCodeGen : MethodBaseCodeGen<MethodInfo>
+    {
+        protected MethodBindingInfo bindingInfo;
+
+        protected override Type GetReturnType(MethodInfo method)
+        {
+            return method.ReturnType;
+        }
+
+        protected override string GetInvokeBinding(string caller, MethodInfo method, bool hasParams, bool isExtension, string nargs, ParameterInfo[] parameters, List<ParameterInfo> parametersByRef)
+        {
+            if (bindingInfo.isIndexer)
+            {
+                if (method.ReturnType == typeof(void))
+                {
+                    var last = parameters.Length - 1;
+                    var arglist_t = "";
+                    for (var i = 0; i < last; i++)
+                    {
+                        var argname = $"arg{i}";
+                        this.WriteParameterGetter(parameters[i], i, argname);
+                        arglist_t += argname;
+                        if (i != last - 1)
+                        {
+                            arglist_t += ", ";
+                        }
+                    }
+                    var argname_last = $"arg{last}";
+                    this.WriteParameterGetter(parameters[last], last, argname_last);
+                    return $"{caller}[{arglist_t}] = {argname_last}"; // setter
+                }
+                else
+                {
+                    var last = parameters.Length;
+                    var arglist_t = "";
+                    for (var i = 0; i < last; i++)
+                    {
+                        var argname = $"arg{i}";
+                        this.WriteParameterGetter(parameters[i], i, argname);
+                        arglist_t += argname;
+                        if (i != last - 1)
+                        {
+                            arglist_t += ", ";
+                        }
+                    }
+                    return $"{caller}[{arglist_t}]"; // getter
+                }
+            }
+            var arglist = this.AppendGetParameters(hasParams, nargs, parameters, parametersByRef);
+            if (isExtension)
+            {
+                var methodDeclType = this.cg.bindingManager.GetCSTypeFullName(method.DeclaringType);
+                if (arglist.Length > 0)
+                {
+                    arglist = ", " + arglist;
+                }
+                return $"{methodDeclType}.{method.Name}({caller}{arglist})";
+            }
+            return $"{caller}.{method.Name}({arglist})";
+        }
+
+        public MethodCodeGen(CodeGenerator cg, MethodBindingInfo bindingInfo)
+        : base(cg)
+        {
+            this.bindingInfo = bindingInfo;
+            WriteAllVariants(this.bindingInfo);
+            // WriteTSAllVariants(this.bindingInfo);
+        }
+    }
+
+    public class TSMethodCodeGen : MethodBaseCodeGen<MethodInfo>
+    {
+        protected MethodBindingInfo bindingInfo;
+
+        protected override Type GetReturnType(MethodInfo method)
+        {
+            return method.ReturnType;
+        }
+
+        protected override string GetInvokeBinding(string caller, MethodInfo method, bool hasParams, bool isExtension, string nargs, ParameterInfo[] parameters, List<ParameterInfo> parametersByRef)
+        {
+            return null;
+        }
+
+        public TSMethodCodeGen(CodeGenerator cg, MethodBindingInfo bindingInfo)
+        : base(cg)
+        {
+            this.bindingInfo = bindingInfo;
+            WriteTSAllVariants(this.bindingInfo);
+        }
+    }
+}
diff --git a/unity/Assets/Duktape/Editor/IBindingProcess.cs b/unity/Assets/Duktape/Editor/IBindingProcess.cs
index 94eb7d5..f120027 100644
--- a/unity/Assets/Duktape/Editor/IBindingProcess.cs
+++ b/unity/Assets/Duktape/Editor/IBindingProcess.cs
@@ -1,51 +1,51 @@
-using System;
-using System.IO;
-using System.Collections.Generic;
-using System.Reflection;
-
-namespace Duktape
-{
-    using UnityEngine;
-    using UnityEditor;
-
-    // 继承该接口(或 AbstractBindingProcess)的类将在导出过程中执行指定方法, 可以在特定阶段进行特定操作
-    // NOTE: AddAssemblies 等基本配置操作可以通过 ProjectSettings/duktape.json 进行配置, 不需要使用此接口方式
-    //       可配置项参考 Prefs.cs 
-    public interface IBindingProcess
-    {
-        // 初始化阶段回调, 可以调用 AddTSMethodDeclaration, AddTSKeywords 等进行定制
-        void OnInitialize(BindingManager bindingManager);
-
-        // 收集 Assembly 阶段, 可在该阶段 AddAssemblies/RemoveAssemblies
-        void OnPreCollectAssemblies(BindingManager bindingManager);
-
-        //
-        void OnPostCollectAssemblies(BindingManager bindingManager);
-        
-        void OnPostExporting(BindingManager bindingManager);
-
-        // 收集类型阶段开始, 可在该阶段 AddExportedType 增加导出类型
-        void OnPreCollectTypes(BindingManager bindingManager);
-
-        //
-        void OnPostCollectTypes(BindingManager bindingManager);
-
-        // 是否要导出指定类型
-        bool OnExportingType(BindingManager bindingManager, Type type);
-
-        // 生成指定类型绑定代码前
-        void OnPreGenerateType(BindingManager bindingManager, TypeBindingInfo bindingInfo);
-        
-        // 生成指定类型绑定代码后
-        void OnPostGenerateType(BindingManager bindingManager, TypeBindingInfo bindingInfo);
-        
-        // 生成指定Delegate类型的绑定代码前
-        void OnPreGenerateDelegate(BindingManager bindingManager, DelegateBindingInfo bindingInfo);
-
-        // 生成指定Delegate类型的绑定代码后
-        void OnPostGenerateDelegate(BindingManager bindingManager, DelegateBindingInfo bindingInfo);
-        
-        // 完成默认清理行为后 
-        void OnCleanup(BindingManager bindingManager);
-    }
-}
+using System;
+using System.IO;
+using System.Collections.Generic;
+using System.Reflection;
+
+namespace Duktape
+{
+    using UnityEngine;
+    using UnityEditor;
+
+    // 继承该接口(或 AbstractBindingProcess)的类将在导出过程中执行指定方法, 可以在特定阶段进行特定操作
+    // NOTE: AddAssemblies 等基本配置操作可以通过 ProjectSettings/duktape.json 进行配置, 不需要使用此接口方式
+    //       可配置项参考 Prefs.cs 
+    public interface IBindingProcess
+    {
+        // 初始化阶段回调, 可以调用 AddTSMethodDeclaration, AddTSKeywords 等进行定制
+        void OnInitialize(BindingManager bindingManager);
+
+        // 收集 Assembly 阶段, 可在该阶段 AddAssemblies/RemoveAssemblies
+        void OnPreCollectAssemblies(BindingManager bindingManager);
+
+        //
+        void OnPostCollectAssemblies(BindingManager bindingManager);
+        
+        void OnPostExporting(BindingManager bindingManager);
+
+        // 收集类型阶段开始, 可在该阶段 AddExportedType 增加导出类型
+        void OnPreCollectTypes(BindingManager bindingManager);
+
+        //
+        void OnPostCollectTypes(BindingManager bindingManager);
+
+        // 是否要导出指定类型
+        bool OnExportingType(BindingManager bindingManager, Type type);
+
+        // 生成指定类型绑定代码前
+        void OnPreGenerateType(BindingManager bindingManager, TypeBindingInfo bindingInfo);
+        
+        // 生成指定类型绑定代码后
+        void OnPostGenerateType(BindingManager bindingManager, TypeBindingInfo bindingInfo);
+        
+        // 生成指定Delegate类型的绑定代码前
+        void OnPreGenerateDelegate(BindingManager bindingManager, DelegateBindingInfo bindingInfo);
+
+        // 生成指定Delegate类型的绑定代码后
+        void OnPostGenerateDelegate(BindingManager bindingManager, DelegateBindingInfo bindingInfo);
+        
+        // 完成默认清理行为后 
+        void OnCleanup(BindingManager bindingManager);
+    }
+}
diff --git a/unity/Assets/Duktape/Editor/PrefsEditor.cs b/unity/Assets/Duktape/Editor/PrefsEditor.cs
index f0ad039..900fb81 100644
--- a/unity/Assets/Duktape/Editor/PrefsEditor.cs
+++ b/unity/Assets/Duktape/Editor/PrefsEditor.cs
@@ -1,28 +1,28 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Text;
-using System.Reflection;
-using System.Runtime.CompilerServices;
-
-namespace Duktape
-{
-    using UnityEngine;
-    using UnityEditor;
-
-    // 配置编辑器
-    public class PrefsEditor : EditorWindow
-    {
-        void OnGUI()
-        {
-            if (GUILayout.Button("Generate"))
-            {
-                UnityHelper.GenerateBindings();
-            }
-            if(GUILayout.Button("Clear"))
-            {
-                UnityHelper.ClearBindings();
-            }
-        }
-    }
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Text;
+using System.Reflection;
+using System.Runtime.CompilerServices;
+
+namespace Duktape
+{
+    using UnityEngine;
+    using UnityEditor;
+
+    // 配置编辑器
+    public class PrefsEditor : EditorWindow
+    {
+        void OnGUI()
+        {
+            if (GUILayout.Button("Generate"))
+            {
+                UnityHelper.GenerateBindings();
+            }
+            if(GUILayout.Button("Clear"))
+            {
+                UnityHelper.ClearBindings();
+            }
+        }
+    }
 }
\ No newline at end of file
diff --git a/unity/Assets/Duktape/Source/DuktapeArray.cs b/unity/Assets/Duktape/Source/DuktapeArray.cs
index 51dbdd4..7ce0b70 100644
--- a/unity/Assets/Duktape/Source/DuktapeArray.cs
+++ b/unity/Assets/Duktape/Source/DuktapeArray.cs
@@ -1,124 +1,124 @@
-using System;
-
-namespace Duktape
-{
-    using UnityEngine;
-
-    public class DuktapeArray : DuktapeValue
-    {
-        public DuktapeArray(DuktapeContext context, uint refid)
-        : base(context, refid)
-        {
-        }
-
-        public DuktapeArray(IntPtr ctx, uint refid)
-        : base(ctx, refid)
-        {
-        }
-
-        public int length
-        {
-            get
-            {
-                var ctx = _context.rawValue;
-                this.Push(ctx);
-                var length_ = DuktapeDLL.duk_unity_get_length(ctx, -1);
-                DuktapeDLL.duk_pop(ctx);
-                return (int)length_;
-            }
-        }
-
-        public void SetIntValue(int index, int value)
-        {
-            var ctx = _context.rawValue;
-            this.Push(ctx);
-            DuktapeDLL.duk_push_int(ctx, value);
-            DuktapeDLL.duk_put_prop_index(ctx, -2, (uint)index);
-            DuktapeDLL.duk_pop(ctx);
-        }
-
-        public void SetFloatValue(int index, float value)
-        {
-            var ctx = _context.rawValue;
-            this.Push(ctx);
-            DuktapeDLL.duk_push_number(ctx, value);
-            DuktapeDLL.duk_put_prop_index(ctx, -2, (uint)index);
-            DuktapeDLL.duk_pop(ctx);
-        }
-
-        public void SetDoubleValue(int index, double value)
-        {
-            var ctx = _context.rawValue;
-            this.Push(ctx);
-            DuktapeDLL.duk_push_number(ctx, value);
-            DuktapeDLL.duk_put_prop_index(ctx, -2, (uint)index);
-            DuktapeDLL.duk_pop(ctx);
-        }
-
-        public void SetStringValue(int index, string value)
-        {
-            var ctx = _context.rawValue;
-            this.Push(ctx);
-            DuktapeDLL.duk_push_string(ctx, value);
-            DuktapeDLL.duk_put_prop_index(ctx, -2, (uint)index);
-            DuktapeDLL.duk_pop(ctx);
-        }
-
-        //
-        public int GetIntValue(int index)
-        {
-            var ctx = _context.rawValue;
-            this.Push(ctx);
-            DuktapeDLL.duk_get_prop_index(ctx, -1, (uint)index);
-            var res = 0;
-            if (DuktapeDLL.duk_is_number(ctx, -1))
-            {
-                res = DuktapeDLL.duk_get_int(ctx, -1);
-            }
-            DuktapeDLL.duk_pop_2(ctx);
-            return res;
-        }
-
-        public float GetFloatValue(int index)
-        {
-            var ctx = _context.rawValue;
-            this.Push(ctx);
-            DuktapeDLL.duk_get_prop_index(ctx, -1, (uint)index);
-            var res = 0f;
-            if (DuktapeDLL.duk_is_number(ctx, -1))
-            {
-                res = (float)DuktapeDLL.duk_get_number(ctx, -1);
-            }
-            DuktapeDLL.duk_pop_2(ctx);
-            return res;
-        }
-
-        public double GetDoubleValue(int index)
-        {
-            var ctx = _context.rawValue;
-            this.Push(ctx);
-            DuktapeDLL.duk_get_prop_index(ctx, -1, (uint)index);
-            var res = 0.0;
-            if (DuktapeDLL.duk_is_number(ctx, -1))
-            {
-                res = DuktapeDLL.duk_get_number(ctx, -1);
-            }
-            DuktapeDLL.duk_pop_2(ctx);
-            return res;
-        }
-
-        public string GetStringValue(int index)
-        {
-            var ctx = _context.rawValue;
-            this.Push(ctx);
-            DuktapeDLL.duk_get_prop_index(ctx, -1, (uint)index);
-            string res = null;
-            if (DuktapeDLL.duk_is_string(ctx, -1))
-            {
-                res = DuktapeDLL.duk_get_string(ctx, -1);
-            }
-            DuktapeDLL.duk_pop_2(ctx);
-            return res;
-        }
-    }
-}
+using System;
+
+namespace Duktape
+{
+    using UnityEngine;
+
+    public class DuktapeArray : DuktapeValue
+    {
+        public DuktapeArray(DuktapeContext context, uint refid)
+        : base(context, refid)
+        {
+        }
+
+        public DuktapeArray(IntPtr ctx, uint refid)
+        : base(ctx, refid)
+        {
+        }
+
+        public int length
+        {
+            get
+            {
+                var ctx = _context.rawValue;
+                this.Push(ctx);
+                var length_ = DuktapeDLL.duk_unity_get_length(ctx, -1);
+                DuktapeDLL.duk_pop(ctx);
+                return (int)length_;
+            }
+        }
+
+        public void SetIntValue(int index, int value)
+        {
+            var ctx = _context.rawValue;
+            this.Push(ctx);
+            DuktapeDLL.duk_push_int(ctx, value);
+            DuktapeDLL.duk_put_prop_index(ctx, -2, (uint)index);
+            DuktapeDLL.duk_pop(ctx);
+        }
+
+        public void SetFloatValue(int index, float value)
+        {
+            var ctx = _context.rawValue;
+            this.Push(ctx);
+            DuktapeDLL.duk_push_number(ctx, value);
+            DuktapeDLL.duk_put_prop_index(ctx, -2, (uint)index);
+            DuktapeDLL.duk_pop(ctx);
+        }
+
+        public void SetDoubleValue(int index, double value)
+        {
+            var ctx = _context.rawValue;
+            this.Push(ctx);
+            DuktapeDLL.duk_push_number(ctx, value);
+            DuktapeDLL.duk_put_prop_index(ctx, -2, (uint)index);
+            DuktapeDLL.duk_pop(ctx);
+        }
+
+        public void SetStringValue(int index, string value)
+        {
+            var ctx = _context.rawValue;
+            this.Push(ctx);
+            DuktapeDLL.duk_push_string(ctx, value);
+            DuktapeDLL.duk_put_prop_index(ctx, -2, (uint)index);
+            DuktapeDLL.duk_pop(ctx);
+        }
+
+        //
+        public int GetIntValue(int index)
+        {
+            var ctx = _context.rawValue;
+            this.Push(ctx);
+            DuktapeDLL.duk_get_prop_index(ctx, -1, (uint)index);
+            var res = 0;
+            if (DuktapeDLL.duk_is_number(ctx, -1))
+            {
+                res = DuktapeDLL.duk_get_int(ctx, -1);
+            }
+            DuktapeDLL.duk_pop_2(ctx);
+            return res;
+        }
+
+        public float GetFloatValue(int index)
+        {
+            var ctx = _context.rawValue;
+            this.Push(ctx);
+            DuktapeDLL.duk_get_prop_index(ctx, -1, (uint)index);
+            var res = 0f;
+            if (DuktapeDLL.duk_is_number(ctx, -1))
+            {
+                res = (float)DuktapeDLL.duk_get_number(ctx, -1);
+            }
+            DuktapeDLL.duk_pop_2(ctx);
+            return res;
+        }
+
+        public double GetDoubleValue(int index)
+        {
+            var ctx = _context.rawValue;
+            this.Push(ctx);
+            DuktapeDLL.duk_get_prop_index(ctx, -1, (uint)index);
+            var res = 0.0;
+            if (DuktapeDLL.duk_is_number(ctx, -1))
+            {
+                res = DuktapeDLL.duk_get_number(ctx, -1);
+            }
+            DuktapeDLL.duk_pop_2(ctx);
+            return res;
+        }
+
+        public string GetStringValue(int index)
+        {
+            var ctx = _context.rawValue;
+            this.Push(ctx);
+            DuktapeDLL.duk_get_prop_index(ctx, -1, (uint)index);
+            string res = null;
+            if (DuktapeDLL.duk_is_string(ctx, -1))
+            {
+                res = DuktapeDLL.duk_get_string(ctx, -1);
+            }
+            DuktapeDLL.duk_pop_2(ctx);
+            return res;
+        }
+    }
+}
diff --git a/unity/Assets/Duktape/Source/DuktapeBinding_delegate.cs b/unity/Assets/Duktape/Source/DuktapeBinding_delegate.cs
index 7b96179..a0248de 100644
--- a/unity/Assets/Duktape/Source/DuktapeBinding_delegate.cs
+++ b/unity/Assets/Duktape/Source/DuktapeBinding_delegate.cs
@@ -1,76 +1,76 @@
-using System;
-using System.Collections.Generic;
-using AOT;
-
-namespace Duktape
-{
-    using UnityEngine;
-
-    // 处理委托的绑定
-    public partial class DuktapeBinding
-    {
-        //TODO: 尝试还原 js function/dispatcher
-        public static void duk_push_delegate(IntPtr ctx, Delegate o)
-        {
-            //TODO: delegate push
-            duk_push_object(ctx, (object)o);
-        }
-
-        public static bool duk_get_delegate_array<T>(IntPtr ctx, int idx, out T[] o)
-        where T : class
-        {
-            if (DuktapeDLL.duk_is_array(ctx, idx))
-            {
-                var length = DuktapeDLL.duk_unity_get_length(ctx, idx);
-                var nidx = DuktapeDLL.duk_normalize_index(ctx, idx);
-                o = new T[length];
-                for (var i = 0U; i < length; i++)
-                {
-                    DuktapeDLL.duk_get_prop_index(ctx, idx, i);
-                    T e;
-                    duk_get_delegate(ctx, -1, out e);
-                    o[i] = e;
-                    DuktapeDLL.duk_pop(ctx);
-                }
-                return true;
-            }
-            duk_get_classvalue<T[]>(ctx, idx, out o);
-            return true;
-        }
-
-        public static bool duk_get_delegate<T>(IntPtr ctx, int idx, out T o)
-        where T : class
-        {
-            if (DuktapeDLL.duk_is_object(ctx, idx)/* && check if js delegate type (hidden property) */
-             || DuktapeDLL.duk_is_function(ctx, idx))
-            {
-                DuktapeDLL.duk_get_prop_string(ctx, idx, DuktapeVM.OBJ_PROP_NATIVE_WEAK);
-                var refid = DuktapeDLL.duk_get_int(ctx, -1);
-                DuktapeDLL.duk_pop(ctx);
-
-                var cache = DuktapeVM.GetObjectCache(ctx);
-                DuktapeDelegate fn;
-                if (cache.TryGetTypedWeakObject(refid, out fn) && fn != null)
-                {
-                    o = fn.target as T;
-                    return true;
-                }
-                // 默认赋值操作
-                DuktapeDLL.duk_dup(ctx, idx);
-                var heapptr = DuktapeDLL.duk_get_heapptr(ctx, idx);
-                fn = new DuktapeDelegate(ctx, DuktapeDLL.duk_unity_ref(ctx));
-                var vm = DuktapeVM.GetVM(ctx);
-                o = vm.CreateDelegate(typeof(T), fn) as T;
-
-                // DuktapeDelegate 拥有 js 对象的强引用, 此 js 对象无法释放 cache 中的 object, 所以这里用弱引用注册
-                // 会出现的问题是, 如果 c# 没有对 DuktapeDelegate 的强引用, 那么反复 get_delegate 会重复创建 DuktapeDelegate
-                refid = cache.AddWeakObject(fn);
-                DuktapeDLL.duk_unity_set_prop_i(ctx, idx, DuktapeVM.OBJ_PROP_NATIVE_WEAK, refid);
-                cache.AddJSValue(o, heapptr);
-                return true;
-            }
-            o = null;
-            return false;
-        }
-    }
-}
+using System;
+using System.Collections.Generic;
+using AOT;
+
+namespace Duktape
+{
+    using UnityEngine;
+
+    // 处理委托的绑定
+    public partial class DuktapeBinding
+    {
+        //TODO: 尝试还原 js function/dispatcher
+        public static void duk_push_delegate(IntPtr ctx, Delegate o)
+        {
+            //TODO: delegate push
+            duk_push_object(ctx, (object)o);
+        }
+
+        public static bool duk_get_delegate_array<T>(IntPtr ctx, int idx, out T[] o)
+        where T : class
+        {
+            if (DuktapeDLL.duk_is_array(ctx, idx))
+            {
+                var length = DuktapeDLL.duk_unity_get_length(ctx, idx);
+                var nidx = DuktapeDLL.duk_normalize_index(ctx, idx);
+                o = new T[length];
+                for (var i = 0U; i < length; i++)
+                {
+                    DuktapeDLL.duk_get_prop_index(ctx, idx, i);
+                    T e;
+                    duk_get_delegate(ctx, -1, out e);
+                    o[i] = e;
+                    DuktapeDLL.duk_pop(ctx);
+                }
+                return true;
+            }
+            duk_get_classvalue<T[]>(ctx, idx, out o);
+            return true;
+        }
+
+        public static bool duk_get_delegate<T>(IntPtr ctx, int idx, out T o)
+        where T : class
+        {
+            if (DuktapeDLL.duk_is_object(ctx, idx)/* && check if js delegate type (hidden property) */
+             || DuktapeDLL.duk_is_function(ctx, idx))
+            {
+                DuktapeDLL.duk_get_prop_string(ctx, idx, DuktapeVM.OBJ_PROP_NATIVE_WEAK);
+                var refid = DuktapeDLL.duk_get_int(ctx, -1);
+                DuktapeDLL.duk_pop(ctx);
+
+                var cache = DuktapeVM.GetObjectCache(ctx);
+                DuktapeDelegate fn;
+                if (cache.TryGetTypedWeakObject(refid, out fn) && fn != null)
+                {
+                    o = fn.target as T;
+                    return true;
+                }
+                // 默认赋值操作
+                DuktapeDLL.duk_dup(ctx, idx);
+                var heapptr = DuktapeDLL.duk_get_heapptr(ctx, idx);
+                fn = new DuktapeDelegate(ctx, DuktapeDLL.duk_unity_ref(ctx));
+                var vm = DuktapeVM.GetVM(ctx);
+                o = vm.CreateDelegate(typeof(T), fn) as T;
+
+                // DuktapeDelegate 拥有 js 对象的强引用, 此 js 对象无法释放 cache 中的 object, 所以这里用弱引用注册
+                // 会出现的问题是, 如果 c# 没有对 DuktapeDelegate 的强引用, 那么反复 get_delegate 会重复创建 DuktapeDelegate
+                refid = cache.AddWeakObject(fn);
+                DuktapeDLL.duk_unity_set_prop_i(ctx, idx, DuktapeVM.OBJ_PROP_NATIVE_WEAK, refid);
+                cache.AddJSValue(o, heapptr);
+                return true;
+            }
+            o = null;
+            return false;
+        }
+    }
+}
diff --git a/unity/Assets/Duktape/Source/DuktapeBinding_match.cs b/unity/Assets/Duktape/Source/DuktapeBinding_match.cs
index 7232bec..c90078b 100644
--- a/unity/Assets/Duktape/Source/DuktapeBinding_match.cs
+++ b/unity/Assets/Duktape/Source/DuktapeBinding_match.cs
@@ -1,143 +1,143 @@
-using System;
-using System.Collections.Generic;
-using AOT;
-
-namespace Duktape
-{
-    using UnityEngine;
-
-    // 处理类型匹配
-    public partial class DuktapeBinding
-    {
-        protected static HashSet<Type> _assignableFromArray = new HashSet<Type>();
-
-        static DuktapeBinding()
-        {
-            _assignableFromArray.Add(typeof(LayerMask));
-            _assignableFromArray.Add(typeof(Color));
-            _assignableFromArray.Add(typeof(Color32));
-            _assignableFromArray.Add(typeof(Vector2));
-            _assignableFromArray.Add(typeof(Vector2Int));
-            _assignableFromArray.Add(typeof(Vector3));
-            _assignableFromArray.Add(typeof(Vector3Int));
-            _assignableFromArray.Add(typeof(Vector4));
-            _assignableFromArray.Add(typeof(Quaternion));
-            // _assignableFromArray.Add(typeof(Matrix4x4));
-        }
-
-        protected static bool duk_match_type(IntPtr ctx, int idx, Type type)
-        {
-            if (type == null)
-            {
-                return true;
-            }
-            if (type == typeof(object))
-            {
-                return true;
-            }
-            if (type == typeof(Type))
-            {
-                Type otype;
-                return duk_get_type(ctx, idx, out otype); // 只要求匹配 Type 本身, 不比较具体 Type
-                // return otype == type;
-            }
-            var jstype = DuktapeDLL.duk_get_type(ctx, idx);
-            switch (jstype)
-            {
-                // case duk_type_t.DUK_TYPE_NONE:
-                case duk_type_t.DUK_TYPE_OBJECT: // objects, arrays, functions, threads
-                    if (DuktapeDLL.duk_is_array(ctx, idx))
-                    {
-                        if (!type.IsArray && !_assignableFromArray.Contains(type))
-                        {
-                            return false;
-                        }
-                    }
-                    else if (DuktapeDLL.duk_is_function(ctx, idx))
-                    {
-                        //TODO: 完善处理 delegate 
-                        return type == typeof(DuktapeFunction) || type.BaseType == typeof(MulticastDelegate);
-                    }
-                    else if (DuktapeDLL.duk_is_thread(ctx, idx))
-                    {
-                        return false;
-                    }
-                    int refid;
-                    //TODO: 根据记录在jsobject 上的 分类标记 做进一步分支 (类型, 实例, 或特定优化类型)
-                    if (duk_get_native_refid(ctx, idx, out refid))
-                    {
-                        var cache = DuktapeVM.GetObjectCache(ctx);
-                        return cache.MatchObjectType(refid, type);
-                    }
-                    return true;
-                case duk_type_t.DUK_TYPE_NUMBER:
-                    return type.IsPrimitive || type.IsEnum;
-                case duk_type_t.DUK_TYPE_STRING:
-                    return type == typeof(string);
-                case duk_type_t.DUK_TYPE_UNDEFINED:
-                case duk_type_t.DUK_TYPE_NULL:
-                    return !type.IsValueType && !type.IsPrimitive;
-                case duk_type_t.DUK_TYPE_BOOLEAN:
-                    return type == typeof(bool);
-                case duk_type_t.DUK_TYPE_BUFFER:
-                    return type == typeof(byte[]) || type == typeof(sbyte[]) /* || type == typeof(DuktapeBuffer) */;
-                case duk_type_t.DUK_TYPE_POINTER:
-                // return type == typeof(DuktapePointer);
-                case duk_type_t.DUK_TYPE_LIGHTFUNC:
-                default:
-                    return false;
-            }
-        }
-
-        // 检查变参参数
-        // offset: 从偏移处开始为变参
-        protected static bool duk_match_param_types(IntPtr ctx, int offset, int nargs, Type type)
-        {
-            for (var i = offset; i < nargs; i++)
-            {
-                if (!duk_match_type(ctx, i, type))
-                {
-                    return false;
-                }
-            }
-            return true;
-        }
-
-        protected static bool duk_match_types(IntPtr ctx, int nargs, Type t0)
-        {
-            return duk_match_type(ctx, 0, t0);
-        }
-
-        protected static bool duk_match_types(IntPtr ctx, int nargs, Type t0, Type t1)
-        {
-            return duk_match_type(ctx, 0, t0) && duk_match_type(ctx, 1, t1);
-        }
-
-        protected static bool duk_match_types(IntPtr ctx, int nargs, Type t0, Type t1, Type t2)
-        {
-            return duk_match_type(ctx, 0, t0) && duk_match_type(ctx, 1, t1) && duk_match_type(ctx, 2, t2);
-        }
-
-        protected static bool duk_match_types(IntPtr ctx, int nargs, Type t0, Type t1, Type t2, Type t3)
-        {
-            return duk_match_type(ctx, 0, t0) && duk_match_type(ctx, 1, t1) && duk_match_type(ctx, 2, t2) && duk_match_type(ctx, 3, t3);
-        }
-
-        protected static bool duk_match_types(IntPtr ctx, int nargs, Type t0, Type t1, Type t2, Type t3, Type t4)
-        {
-            return duk_match_type(ctx, 0, t0) && duk_match_type(ctx, 1, t1) && duk_match_type(ctx, 2, t2) && duk_match_type(ctx, 3, t3) && duk_match_type(ctx, 4, t4);
-        }
-
-        protected static bool duk_match_types(IntPtr ctx, int nargs, params Type[] types)
-        {
-            for (int i = 0, size = types.Length; i < size; i++)
-            {
-                if (!duk_match_type(ctx, i, types[i]))
-                {
-                    return false;
-                }
-            }
-            return true;
-        }
-    }
-}
+using System;
+using System.Collections.Generic;
+using AOT;
+
+namespace Duktape
+{
+    using UnityEngine;
+
+    // 处理类型匹配
+    public partial class DuktapeBinding
+    {
+        protected static HashSet<Type> _assignableFromArray = new HashSet<Type>();
+
+        static DuktapeBinding()
+        {
+            _assignableFromArray.Add(typeof(LayerMask));
+            _assignableFromArray.Add(typeof(Color));
+            _assignableFromArray.Add(typeof(Color32));
+            _assignableFromArray.Add(typeof(Vector2));
+            _assignableFromArray.Add(typeof(Vector2Int));
+            _assignableFromArray.Add(typeof(Vector3));
+            _assignableFromArray.Add(typeof(Vector3Int));
+            _assignableFromArray.Add(typeof(Vector4));
+            _assignableFromArray.Add(typeof(Quaternion));
+            // _assignableFromArray.Add(typeof(Matrix4x4));
+        }
+
+        protected static bool duk_match_type(IntPtr ctx, int idx, Type type)
+        {
+            if (type == null)
+            {
+                return true;
+            }
+            if (type == typeof(object))
+            {
+                return true;
+            }
+            if (type == typeof(Type))
+            {
+                Type otype;
+                return duk_get_type(ctx, idx, out otype); // 只要求匹配 Type 本身, 不比较具体 Type
+                // return otype == type;
+            }
+            var jstype = DuktapeDLL.duk_get_type(ctx, idx);
+            switch (jstype)
+            {
+                // case duk_type_t.DUK_TYPE_NONE:
+                case duk_type_t.DUK_TYPE_OBJECT: // objects, arrays, functions, threads
+                    if (DuktapeDLL.duk_is_array(ctx, idx))
+                    {
+                        if (!type.IsArray && !_assignableFromArray.Contains(type))
+                        {
+                            return false;
+                        }
+                    }
+                    else if (DuktapeDLL.duk_is_function(ctx, idx))
+                    {
+                        //TODO: 完善处理 delegate 
+                        return type == typeof(DuktapeFunction) || type.BaseType == typeof(MulticastDelegate);
+                    }
+                    else if (DuktapeDLL.duk_is_thread(ctx, idx))
+                    {
+                        return false;
+                    }
+                    int refid;
+                    //TODO: 根据记录在jsobject 上的 分类标记 做进一步分支 (类型, 实例, 或特定优化类型)
+                    if (duk_get_native_refid(ctx, idx, out refid))
+                    {
+                        var cache = DuktapeVM.GetObjectCache(ctx);
+                        return cache.MatchObjectType(refid, type);
+                    }
+                    return true;
+                case duk_type_t.DUK_TYPE_NUMBER:
+                    return type.IsPrimitive || type.IsEnum;
+                case duk_type_t.DUK_TYPE_STRING:
+                    return type == typeof(string);
+                case duk_type_t.DUK_TYPE_UNDEFINED:
+                case duk_type_t.DUK_TYPE_NULL:
+                    return !type.IsValueType && !type.IsPrimitive;
+                case duk_type_t.DUK_TYPE_BOOLEAN:
+                    return type == typeof(bool);
+                case duk_type_t.DUK_TYPE_BUFFER:
+                    return type == typeof(byte[]) || type == typeof(sbyte[]) /* || type == typeof(DuktapeBuffer) */;
+                case duk_type_t.DUK_TYPE_POINTER:
+                // return type == typeof(DuktapePointer);
+                case duk_type_t.DUK_TYPE_LIGHTFUNC:
+                default:
+                    return false;
+            }
+        }
+
+        // 检查变参参数
+        // offset: 从偏移处开始为变参
+        protected static bool duk_match_param_types(IntPtr ctx, int offset, int nargs, Type type)
+        {
+            for (var i = offset; i < nargs; i++)
+            {
+                if (!duk_match_type(ctx, i, type))
+                {
+                    return false;
+                }
+            }
+            return true;
+        }
+
+        protected static bool duk_match_types(IntPtr ctx, int nargs, Type t0)
+        {
+            return duk_match_type(ctx, 0, t0);
+        }
+
+        protected static bool duk_match_types(IntPtr ctx, int nargs, Type t0, Type t1)
+        {
+            return duk_match_type(ctx, 0, t0) && duk_match_type(ctx, 1, t1);
+        }
+
+        protected static bool duk_match_types(IntPtr ctx, int nargs, Type t0, Type t1, Type t2)
+        {
+            return duk_match_type(ctx, 0, t0) && duk_match_type(ctx, 1, t1) && duk_match_type(ctx, 2, t2);
+        }
+
+        protected static bool duk_match_types(IntPtr ctx, int nargs, Type t0, Type t1, Type t2, Type t3)
+        {
+            return duk_match_type(ctx, 0, t0) && duk_match_type(ctx, 1, t1) && duk_match_type(ctx, 2, t2) && duk_match_type(ctx, 3, t3);
+        }
+
+        protected static bool duk_match_types(IntPtr ctx, int nargs, Type t0, Type t1, Type t2, Type t3, Type t4)
+        {
+            return duk_match_type(ctx, 0, t0) && duk_match_type(ctx, 1, t1) && duk_match_type(ctx, 2, t2) && duk_match_type(ctx, 3, t3) && duk_match_type(ctx, 4, t4);
+        }
+
+        protected static bool duk_match_types(IntPtr ctx, int nargs, params Type[] types)
+        {
+            for (int i = 0, size = types.Length; i < size; i++)
+            {
+                if (!duk_match_type(ctx, i, types[i]))
+                {
+                    return false;
+                }
+            }
+            return true;
+        }
+    }
+}
diff --git a/unity/Assets/Duktape/Source/DuktapeDebugger.cs b/unity/Assets/Duktape/Source/DuktapeDebugger.cs
index 1a68ce9..ffd0027 100644
--- a/unity/Assets/Duktape/Source/DuktapeDebugger.cs
+++ b/unity/Assets/Duktape/Source/DuktapeDebugger.cs
@@ -1,291 +1,291 @@
-using System;
-using System.Net;
-using System.Net.Sockets;
-using System.Collections.Generic;
-using System.Runtime.InteropServices;
-using AOT;
-
-namespace Duktape
-{
-    using UnityEngine;
-
-    public class DuktapeDebugger
-    {
-        private static DuktapeDebugger _instance;
-        private static byte[] _buffer;
-        private IntPtr _ctx;
-        private IntPtr _debugger;
-        private int _loop;
-        private Socket _server;
-        private Socket _client;
-        private List<Socket> _pending = new List<Socket>();
-
-        private DuktapeDebugger() { }
-
-        public static DuktapeDebugger CreateDebugger(IntPtr ctx)
-        {
-            return CreateDebugger(ctx, 9091, 1024);
-        }
-
-        public static DuktapeDebugger CreateDebugger(IntPtr ctx, int port)
-        {
-            return CreateDebugger(ctx, port, 1024);
-        }
-
-        public static DuktapeDebugger CreateDebugger(IntPtr ctx, int port, int bufferSize)
-        {
-            if (_instance != null)
-            {
-                throw new Exception("debugger already exists");
-            }
-            _buffer = new byte[bufferSize];
-            _instance = new DuktapeDebugger();
-            _instance._ctx = ctx;
-            _instance._debugger = IntPtr.Zero;
-            _instance.Start(port);
-            return _instance;
-        }
-
-        public static void Shutdown()
-        {
-            if (_instance != null)
-            {
-                _instance.Stop();
-                _instance = null;
-            }
-        }
-
-        private void Start(int port)
-        {
-            Stop();
-            _server = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
-            _server.Bind(new IPEndPoint(IPAddress.Any, port));
-            _server.Listen(1);
-            _server.BeginAccept(_Accept, _server);
-            _loop = DuktapeRunner.SetLoop(OnUpdate);
-        }
-
-        private void _Accept(IAsyncResult ar)
-        {
-            try
-            {
-                var server = ar.AsyncState as Socket;
-                var socket = server.EndAccept(ar);
-                Debug.LogWarningFormat("accept: {0}", socket.RemoteEndPoint);
-                lock (_pending)
-                {
-                    if (_pending.Count == 0)
-                    {
-                        socket.NoDelay = true;
-                        _pending.Add(socket);
-                    }
-                    else
-                    {
-                        socket.Close();
-                    }
-                }
-                server.BeginAccept(_Accept, server);
-            }
-            catch (Exception)
-            {
-                // Debug.LogWarningFormat("debugger server closed: {0}", exception);
-            }
-        }
-
-        private void OnUpdate()
-        {
-            if (_client == null)
-            {
-                lock (_pending)
-                {
-                    if (_pending.Count > 0)
-                    {
-                        var newClient = _pending[0];
-                        _pending.RemoveAt(0);
-                        if (newClient.Connected)
-                        {
-                            DetachCurrent();
-                            Debug.LogFormat("debugger connected: {0}", newClient.RemoteEndPoint);
-                            _client = newClient;
-                            _debugger = DuktapeDLL.duk_unity_attach_debugger(_ctx,
-                                duk_unity_debug_read_function,
-                                duk_unity_debug_write_function,
-                                duk_unity_debug_peek_function,
-                                duk_unity_debug_read_flush_function,
-                                duk_unity_debug_write_flush_function,
-                                duk_unity_debug_request_function,
-                                duk_unity_debug_detached_function,
-                                0);
-                        }
-                        else
-                        {
-                            Debug.LogWarningFormat("dead connection removed");
-                        }
-                    }
-                }
-            }
-            else
-            {
-                if (!_client.Connected || (_client.Poll(1000, SelectMode.SelectRead) && _client.Available == 0))
-                {
-                    Debug.LogError("dead");
-                    _client.Close();
-                    _client = null;
-                }
-            }
-        }
-
-        private void DetachCurrent()
-        {
-            DuktapeDLL.duk_unity_detach_debugger(_ctx, _debugger);
-            _debugger = IntPtr.Zero;
-        }
-
-        private void Stop()
-        {
-            lock (_pending)
-            {
-                _pending.Clear();
-            }
-            DetachCurrent();
-            if (_client != null)
-            {
-                _client.Close();
-                _client = null;
-            }
-            if (_server != null)
-            {
-                _server.Close();
-                _server = null;
-            }
-            DuktapeRunner.Clear(_loop);
-            _loop = 0;
-        }
-
-        [MonoPInvokeCallback(typeof(DuktapeDLL.duk_unity_debug_read_function))]
-        private static uint duk_unity_debug_read_function(int udata, IntPtr buffer, uint length)
-        {
-            // Debug.LogWarning("duk_unity_debug_read_function");
-            try
-            {
-                if (_instance != null && _instance._client != null)
-                {
-                    var bufferSize = _buffer.Length;
-                    var size = bufferSize > length ? (int)length : bufferSize;
-                    // Debug.LogWarningFormat("debugger read: {0} {1}", size, length);
-                    var n = _instance._client.Receive(_buffer, size, SocketFlags.None);
-                    // Debug.LogWarningFormat("debugger recv: {0}", n);
-                    if (n > 0)
-                    {
-                        Marshal.Copy(_buffer, 0, buffer, n);
-                        return (uint)n;
-                    }
-                    _instance._client.Close();
-                    _instance._client = null;
-                }
-            }
-            catch (Exception exception)
-            {
-                Debug.LogWarningFormat("debugger connection lost: {0}", exception);
-                _instance._client = null;
-            }
-            return 0;
-        }
-
-        [MonoPInvokeCallback(typeof(DuktapeDLL.duk_unity_debug_write_function))]
-        private static uint duk_unity_debug_write_function(int udata, IntPtr buffer, uint length)
-        {
-            // Debug.LogWarning("duk_unity_debug_write_function");
-            try
-            {
-                if (_instance != null && _instance._client != null)
-                {
-                    var bufferSize = _buffer.Length;
-                    var size = bufferSize > length ? (int)length : bufferSize;
-                    Marshal.Copy(buffer, _buffer, 0, size);
-                    // Debug.LogWarningFormat("debugger write: {0} {1}", size, length);
-                    var n = _instance._client.Send(_buffer, size, SocketFlags.None);
-                    // Debug.LogWarningFormat("debugger sent: {0}", n);
-                    if (n > 0)
-                    {
-                        return (uint)n;
-                    }
-                    _instance._client.Close();
-                    _instance._client = null;
-                }
-            }
-            catch (Exception exception)
-            {
-                Debug.LogWarningFormat("debugger connection lost: {0}", exception);
-                _instance._client = null;
-            }
-            return 0;
-        }
-
-        [MonoPInvokeCallback(typeof(DuktapeDLL.duk_unity_debug_peek_function))]
-        private static uint duk_unity_debug_peek_function(int udata)
-        {
-            Debug.LogWarning("duk_unity_debug_peek_function");
-            try
-            {
-                if (_instance != null && _instance._client != null)
-                {
-                    if (_instance._client.Connected)
-                    {
-                        if (_instance._client.Poll(1000, SelectMode.SelectRead))
-                        {
-                            var n = _instance._client.Available;
-                            Debug.LogWarningFormat("peek available {0}", n);
-                            if (n > 0)
-                            {
-                                return (uint)n;
-                            }
-                            Debug.LogWarningFormat("remote closed");
-                        }
-                        else if (_instance._client.Poll(1000, SelectMode.SelectError))
-                        {
-                            Debug.LogWarningFormat("peek error");
-                        }
-                        else
-                        {
-                            Debug.LogWarningFormat("no data");
-                            return 0;
-                        }
-                    }
-                    Debug.LogWarningFormat("closing");
-                    _instance._client.Close();
-                    _instance._client = null;
-                }
-            }
-            catch (Exception exception)
-            {
-                Debug.LogWarningFormat("debugger connection lost: {0}", exception);
-                _instance._client = null;
-            }
-            return 0;
-        }
-
-        [MonoPInvokeCallback(typeof(DuktapeDLL.duk_unity_debug_read_flush_function))]
-        private static void duk_unity_debug_read_flush_function(int udata)
-        {
-        }
-
-        [MonoPInvokeCallback(typeof(DuktapeDLL.duk_unity_debug_write_flush_function))]
-        private static void duk_unity_debug_write_flush_function(int udata)
-        {
-        }
-
-        [MonoPInvokeCallback(typeof(DuktapeDLL.duk_unity_debug_request_function))]
-        private static int duk_unity_debug_request_function(IntPtr ctx, int udata, int nvalues)
-        {
-            Debug.LogWarningFormat("duk_unity_debug_request_function: {0}", nvalues);
-            return 0;
-        }
-
-        [MonoPInvokeCallback(typeof(DuktapeDLL.duk_unity_debug_detached_function))]
-        private static void duk_unity_debug_detached_function(IntPtr ctx, int udata)
-        {
-            Debug.LogWarningFormat("duk_unity_debug_detached_function");
-        }
-    }
+using System;
+using System.Net;
+using System.Net.Sockets;
+using System.Collections.Generic;
+using System.Runtime.InteropServices;
+using AOT;
+
+namespace Duktape
+{
+    using UnityEngine;
+
+    public class DuktapeDebugger
+    {
+        private static DuktapeDebugger _instance;
+        private static byte[] _buffer;
+        private IntPtr _ctx;
+        private IntPtr _debugger;
+        private int _loop;
+        private Socket _server;
+        private Socket _client;
+        private List<Socket> _pending = new List<Socket>();
+
+        private DuktapeDebugger() { }
+
+        public static DuktapeDebugger CreateDebugger(IntPtr ctx)
+        {
+            return CreateDebugger(ctx, 9091, 1024);
+        }
+
+        public static DuktapeDebugger CreateDebugger(IntPtr ctx, int port)
+        {
+            return CreateDebugger(ctx, port, 1024);
+        }
+
+        public static DuktapeDebugger CreateDebugger(IntPtr ctx, int port, int bufferSize)
+        {
+            if (_instance != null)
+            {
+                throw new Exception("debugger already exists");
+            }
+            _buffer = new byte[bufferSize];
+            _instance = new DuktapeDebugger();
+            _instance._ctx = ctx;
+            _instance._debugger = IntPtr.Zero;
+            _instance.Start(port);
+            return _instance;
+        }
+
+        public static void Shutdown()
+        {
+            if (_instance != null)
+            {
+                _instance.Stop();
+                _instance = null;
+            }
+        }
+
+        private void Start(int port)
+        {
+            Stop();
+            _server = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
+            _server.Bind(new IPEndPoint(IPAddress.Any, port));
+            _server.Listen(1);
+            _server.BeginAccept(_Accept, _server);
+            _loop = DuktapeRunner.SetLoop(OnUpdate);
+        }
+
+        private void _Accept(IAsyncResult ar)
+        {
+            try
+            {
+                var server = ar.AsyncState as Socket;
+                var socket = server.EndAccept(ar);
+                Debug.LogWarningFormat("accept: {0}", socket.RemoteEndPoint);
+                lock (_pending)
+                {
+                    if (_pending.Count == 0)
+                    {
+                        socket.NoDelay = true;
+                        _pending.Add(socket);
+                    }
+                    else
+                    {
+                        socket.Close();
+                    }
+                }
+                server.BeginAccept(_Accept, server);
+            }
+            catch (Exception)
+            {
+                // Debug.LogWarningFormat("debugger server closed: {0}", exception);
+            }
+        }
+
+        private void OnUpdate()
+        {
+            if (_client == null)
+            {
+                lock (_pending)
+                {
+                    if (_pending.Count > 0)
+                    {
+                        var newClient = _pending[0];
+                        _pending.RemoveAt(0);
+                        if (newClient.Connected)
+                        {
+                            DetachCurrent();
+                            Debug.LogFormat("debugger connected: {0}", newClient.RemoteEndPoint);
+                            _client = newClient;
+                            _debugger = DuktapeDLL.duk_unity_attach_debugger(_ctx,
+                                duk_unity_debug_read_function,
+                                duk_unity_debug_write_function,
+                                duk_unity_debug_peek_function,
+                                duk_unity_debug_read_flush_function,
+                                duk_unity_debug_write_flush_function,
+                                duk_unity_debug_request_function,
+                                duk_unity_debug_detached_function,
+                                0);
+                        }
+                        else
+                        {
+                            Debug.LogWarningFormat("dead connection removed");
+                        }
+                    }
+                }
+            }
+            else
+            {
+                if (!_client.Connected || (_client.Poll(1000, SelectMode.SelectRead) && _client.Available == 0))
+                {
+                    Debug.LogError("dead");
+                    _client.Close();
+                    _client = null;
+                }
+            }
+        }
+
+        private void DetachCurrent()
+        {
+            DuktapeDLL.duk_unity_detach_debugger(_ctx, _debugger);
+            _debugger = IntPtr.Zero;
+        }
+
+        private void Stop()
+        {
+            lock (_pending)
+            {
+                _pending.Clear();
+            }
+            DetachCurrent();
+            if (_client != null)
+            {
+                _client.Close();
+                _client = null;
+            }
+            if (_server != null)
+            {
+                _server.Close();
+                _server = null;
+            }
+            DuktapeRunner.Clear(_loop);
+            _loop = 0;
+        }
+
+        [MonoPInvokeCallback(typeof(DuktapeDLL.duk_unity_debug_read_function))]
+        private static uint duk_unity_debug_read_function(int udata, IntPtr buffer, uint length)
+        {
+            // Debug.LogWarning("duk_unity_debug_read_function");
+            try
+            {
+                if (_instance != null && _instance._client != null)
+                {
+                    var bufferSize = _buffer.Length;
+                    var size = bufferSize > length ? (int)length : bufferSize;
+                    // Debug.LogWarningFormat("debugger read: {0} {1}", size, length);
+                    var n = _instance._client.Receive(_buffer, size, SocketFlags.None);
+                    // Debug.LogWarningFormat("debugger recv: {0}", n);
+                    if (n > 0)
+                    {
+                        Marshal.Copy(_buffer, 0, buffer, n);
+                        return (uint)n;
+                    }
+                    _instance._client.Close();
+                    _instance._client = null;
+                }
+            }
+            catch (Exception exception)
+            {
+                Debug.LogWarningFormat("debugger connection lost: {0}", exception);
+                _instance._client = null;
+            }
+            return 0;
+        }
+
+        [MonoPInvokeCallback(typeof(DuktapeDLL.duk_unity_debug_write_function))]
+        private static uint duk_unity_debug_write_function(int udata, IntPtr buffer, uint length)
+        {
+            // Debug.LogWarning("duk_unity_debug_write_function");
+            try
+            {
+                if (_instance != null && _instance._client != null)
+                {
+                    var bufferSize = _buffer.Length;
+                    var size = bufferSize > length ? (int)length : bufferSize;
+                    Marshal.Copy(buffer, _buffer, 0, size);
+                    // Debug.LogWarningFormat("debugger write: {0} {1}", size, length);
+                    var n = _instance._client.Send(_buffer, size, SocketFlags.None);
+                    // Debug.LogWarningFormat("debugger sent: {0}", n);
+                    if (n > 0)
+                    {
+                        return (uint)n;
+                    }
+                    _instance._client.Close();
+                    _instance._client = null;
+                }
+            }
+            catch (Exception exception)
+            {
+                Debug.LogWarningFormat("debugger connection lost: {0}", exception);
+                _instance._client = null;
+            }
+            return 0;
+        }
+
+        [MonoPInvokeCallback(typeof(DuktapeDLL.duk_unity_debug_peek_function))]
+        private static uint duk_unity_debug_peek_function(int udata)
+        {
+            Debug.LogWarning("duk_unity_debug_peek_function");
+            try
+            {
+                if (_instance != null && _instance._client != null)
+                {
+                    if (_instance._client.Connected)
+                    {
+                        if (_instance._client.Poll(1000, SelectMode.SelectRead))
+                        {
+                            var n = _instance._client.Available;
+                            Debug.LogWarningFormat("peek available {0}", n);
+                            if (n > 0)
+                            {
+                                return (uint)n;
+                            }
+                            Debug.LogWarningFormat("remote closed");
+                        }
+                        else if (_instance._client.Poll(1000, SelectMode.SelectError))
+                        {
+                            Debug.LogWarningFormat("peek error");
+                        }
+                        else
+                        {
+                            Debug.LogWarningFormat("no data");
+                            return 0;
+                        }
+                    }
+                    Debug.LogWarningFormat("closing");
+                    _instance._client.Close();
+                    _instance._client = null;
+                }
+            }
+            catch (Exception exception)
+            {
+                Debug.LogWarningFormat("debugger connection lost: {0}", exception);
+                _instance._client = null;
+            }
+            return 0;
+        }
+
+        [MonoPInvokeCallback(typeof(DuktapeDLL.duk_unity_debug_read_flush_function))]
+        private static void duk_unity_debug_read_flush_function(int udata)
+        {
+        }
+
+        [MonoPInvokeCallback(typeof(DuktapeDLL.duk_unity_debug_write_flush_function))]
+        private static void duk_unity_debug_write_flush_function(int udata)
+        {
+        }
+
+        [MonoPInvokeCallback(typeof(DuktapeDLL.duk_unity_debug_request_function))]
+        private static int duk_unity_debug_request_function(IntPtr ctx, int udata, int nvalues)
+        {
+            Debug.LogWarningFormat("duk_unity_debug_request_function: {0}", nvalues);
+            return 0;
+        }
+
+        [MonoPInvokeCallback(typeof(DuktapeDLL.duk_unity_debug_detached_function))]
+        private static void duk_unity_debug_detached_function(IntPtr ctx, int udata)
+        {
+            Debug.LogWarningFormat("duk_unity_debug_detached_function");
+        }
+    }
 }
\ No newline at end of file
diff --git a/unity/Assets/Duktape/Source/DuktapeDelegate.cs b/unity/Assets/Duktape/Source/DuktapeDelegate.cs
index 61fa2e6..6e4598f 100644
--- a/unity/Assets/Duktape/Source/DuktapeDelegate.cs
+++ b/unity/Assets/Duktape/Source/DuktapeDelegate.cs
@@ -1,82 +1,82 @@
-using System;
-using UnityEngine;
-
-namespace Duktape
-{
-    // 包装了一个 js function/eventdispatcher
-    // 对于 function 调用时传入的 this 为 function 自身
-    public class DuktapeDelegate : DuktapeValue
-    {
-        // cache the delegate object
-        public Delegate target;
-        private int _savedState;
-
-        private DuktapeFunction _jsInvoker;
-
-        public DuktapeDelegate(IntPtr ctx, uint refid)
-        : base(ctx, refid)
-        {
-        }
-
-        private static void duk_unity_unref(IntPtr ctx, uint refid, object target)
-        {
-            DuktapeVM.GetObjectCache(ctx).RemoveJSValue(target);
-            DuktapeDLL.duk_unity_unref(ctx, refid);
-        }
-
-        protected override void Dispose(bool bManaged)
-        {
-            _jsInvoker = null;
-            if (this._refid != 0 && this._context != null)
-            {
-                var vm = this._context.vm;
-                vm.GC(this._refid, this.target, duk_unity_unref);
-                this._refid = 0;
-                this.target = null;
-            }
-        }
-
-        public void Invoke(IntPtr ctx)
-        {
-            this.BeginInvoke(ctx);
-            this.EndInvoke(ctx);
-        }
-
-        // 记录栈状态
-        public void BeginInvoke(IntPtr ctx)
-        {
-            // Debug.Log($"BeginInvoke: {_savedState}");
-            if (_jsInvoker == null)
-            {
-                this.Push(ctx); // push this
-                if (!DuktapeDLL.duk_is_function(ctx, -1))
-                {
-                    // Debug.Log("DuktapeDelegate based on Dispatcher");
-                    DuktapeDLL.duk_get_prop_string(ctx, -1, "dispatch");
-                    DuktapeDLL.duk_remove(ctx, -2); // remove this
-                }
-                _jsInvoker = new DuktapeFunction(ctx, DuktapeDLL.duk_unity_ref(ctx));
-            }
-            _jsInvoker.Push(ctx); // push function
-            this.Push(ctx); // push this
-            _savedState = DuktapeDLL.duk_get_top(ctx);
-        }
-
-        // 根据当前栈参数数量调用函数
-        public void EndInvoke(IntPtr ctx)
-        {
-            var nargs = DuktapeDLL.duk_get_top(ctx) - _savedState;
-            var ret = DuktapeDLL.duk_pcall_method(ctx, nargs);
-            if (ret != DuktapeDLL.DUK_EXEC_SUCCESS)
-            {
-                DuktapeAux.PrintError(ctx, -1);
-                DuktapeDLL.duk_pop(ctx);
-                // throw new Exception(err); 
-            }
-            else
-            {
-                DuktapeDLL.duk_pop(ctx);
-            }
-        }
-    }
-}
+using System;
+using UnityEngine;
+
+namespace Duktape
+{
+    // 包装了一个 js function/eventdispatcher
+    // 对于 function 调用时传入的 this 为 function 自身
+    public class DuktapeDelegate : DuktapeValue
+    {
+        // cache the delegate object
+        public Delegate target;
+        private int _savedState;
+
+        private DuktapeFunction _jsInvoker;
+
+        public DuktapeDelegate(IntPtr ctx, uint refid)
+        : base(ctx, refid)
+        {
+        }
+
+        private static void duk_unity_unref(IntPtr ctx, uint refid, object target)
+        {
+            DuktapeVM.GetObjectCache(ctx).RemoveJSValue(target);
+            DuktapeDLL.duk_unity_unref(ctx, refid);
+        }
+
+        protected override void Dispose(bool bManaged)
+        {
+            _jsInvoker = null;
+            if (this._refid != 0 && this._context != null)
+            {
+                var vm = this._context.vm;
+                vm.GC(this._refid, this.target, duk_unity_unref);
+                this._refid = 0;
+                this.target = null;
+            }
+        }
+
+        public void Invoke(IntPtr ctx)
+        {
+            this.BeginInvoke(ctx);
+            this.EndInvoke(ctx);
+        }
+
+        // 记录栈状态
+        public void BeginInvoke(IntPtr ctx)
+        {
+            // Debug.Log($"BeginInvoke: {_savedState}");
+            if (_jsInvoker == null)
+            {
+                this.Push(ctx); // push this
+                if (!DuktapeDLL.duk_is_function(ctx, -1))
+                {
+                    // Debug.Log("DuktapeDelegate based on Dispatcher");
+                    DuktapeDLL.duk_get_prop_string(ctx, -1, "dispatch");
+                    DuktapeDLL.duk_remove(ctx, -2); // remove this
+                }
+                _jsInvoker = new DuktapeFunction(ctx, DuktapeDLL.duk_unity_ref(ctx));
+            }
+            _jsInvoker.Push(ctx); // push function
+            this.Push(ctx); // push this
+            _savedState = DuktapeDLL.duk_get_top(ctx);
+        }
+
+        // 根据当前栈参数数量调用函数
+        public void EndInvoke(IntPtr ctx)
+        {
+            var nargs = DuktapeDLL.duk_get_top(ctx) - _savedState;
+            var ret = DuktapeDLL.duk_pcall_method(ctx, nargs);
+            if (ret != DuktapeDLL.DUK_EXEC_SUCCESS)
+            {
+                DuktapeAux.PrintError(ctx, -1);
+                DuktapeDLL.duk_pop(ctx);
+                // throw new Exception(err); 
+            }
+            else
+            {
+                DuktapeDLL.duk_pop(ctx);
+            }
+        }
+    }
+}
diff --git a/unity/Assets/Duktape/Source/DuktapeRunner.cs b/unity/Assets/Duktape/Source/DuktapeRunner.cs
index d894aef..bc16961 100644
--- a/unity/Assets/Duktape/Source/DuktapeRunner.cs
+++ b/unity/Assets/Duktape/Source/DuktapeRunner.cs
@@ -1,140 +1,140 @@
-using System;
-using System.Collections;
-using System.Collections.Generic;
-using AOT;
-
-namespace Duktape
-{
-    using UnityEngine;
-
-    // 利用 coroutine 实现的简易定时运行管理器 (interval/timeout/loop)
-    public class DuktapeRunner : MonoBehaviour
-    {
-        private static DuktapeRunner _runner;
-        private static int _id;
-        private static Dictionary<int, Coroutine> _timers = new Dictionary<int, Coroutine>();
-
-        public static DuktapeRunner GetRunner()
-        {
-            if (_runner == null)
-            {
-                var go = new GameObject();
-                go.hideFlags = HideFlags.HideAndDontSave;
-                GameObject.DontDestroyOnLoad(go);
-                _runner = go.AddComponent<DuktapeRunner>();
-            }
-            return _runner;
-        }
-
-        public static int SetLoop(Action fn)
-        {
-            var id = ++_id;
-            GetRunner().AddLoop(id, fn);
-            return id;
-        }
-
-        public static int SetTimeout(DuktapeFunction fn, double ms)
-        {
-            return SetTimeout(fn, (float)ms);
-        }
-
-        public static int SetTimeout(DuktapeFunction fn, float ms)
-        {
-            var id = ++_id;
-            GetRunner().AddTimeout(id, fn, ms * 0.001f);
-            return id;
-        }
-
-        public static int SetInterval(DuktapeFunction fn, double ms)
-        {
-            return SetInterval(fn, (float)ms);
-        }
-
-        public static int SetInterval(DuktapeFunction fn, float ms)
-        {
-            var id = ++_id;
-            GetRunner().AddInterval(id, fn, ms * 0.001f);
-            return id;
-        }
-
-        public static int SetInterval(Action fn, float ms)
-        {
-            var id = ++_id;
-            GetRunner().AddInterval(id, fn, ms * 0.001f);
-            return id;
-        }
-
-        public static bool Clear(int id)
-        {
-            return GetRunner().RemoveTimer(id);
-        }
-
-        private void AddTimeout(int id, DuktapeFunction fn, float seconds)
-        {
-            _timers[id] = StartCoroutine(_Timeout(id, fn, seconds));
-        }
-
-        private void AddInterval(int id, DuktapeFunction fn, float seconds)
-        {
-            _timers[id] = StartCoroutine(_Interval(id, fn, seconds));
-        }
-
-        private void AddInterval(int id, Action fn, float seconds)
-        {
-            _timers[id] = StartCoroutine(_Interval(id, fn, seconds));
-        }
-
-        private void AddLoop(int id, Action fn)
-        {
-            _timers[id] = StartCoroutine(_Loop(id, fn));
-        }
-
-        private bool RemoveTimer(int id)
-        {
-            Coroutine coroutine;
-            if (_timers.TryGetValue(id, out coroutine))
-            {
-                StopCoroutine(coroutine);
-                return _timers.Remove(id);
-            }
-            return false;
-        }
-
-        private IEnumerator _Loop(int id, Action fn)
-        {
-            while (true)
-            {
-                yield return null;
-                fn();
-            }
-        }
-
-        private IEnumerator _Timeout(int id, DuktapeFunction fn, float seconds)
-        {
-            var wait = seconds > 0 ? new WaitForSeconds(seconds) : null;
-            yield return wait;
-            _timers.Remove(id);
-            fn.Invoke();
-        }
-
-        private IEnumerator _Interval(int id, DuktapeFunction fn, float seconds)
-        {
-            var wait = seconds > 0 ? new WaitForSeconds(seconds) : null;
-            while (true)
-            {
-                yield return wait;
-                fn.Invoke();
-            }
-        }
-
-        private IEnumerator _Interval(int id, Action fn, float seconds)
-        {
-            var wait = seconds > 0 ? new WaitForSeconds(seconds) : null;
-            while (true)
-            {
-                yield return wait;
-                fn();
-            }
-        }
-    }
-}
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using AOT;
+
+namespace Duktape
+{
+    using UnityEngine;
+
+    // 利用 coroutine 实现的简易定时运行管理器 (interval/timeout/loop)
+    public class DuktapeRunner : MonoBehaviour
+    {
+        private static DuktapeRunner _runner;
+        private static int _id;
+        private static Dictionary<int, Coroutine> _timers = new Dictionary<int, Coroutine>();
+
+        public static DuktapeRunner GetRunner()
+        {
+            if (_runner == null)
+            {
+                var go = new GameObject();
+                go.hideFlags = HideFlags.HideAndDontSave;
+                GameObject.DontDestroyOnLoad(go);
+                _runner = go.AddComponent<DuktapeRunner>();
+            }
+            return _runner;
+        }
+
+        public static int SetLoop(Action fn)
+        {
+            var id = ++_id;
+            GetRunner().AddLoop(id, fn);
+            return id;
+        }
+
+        public static int SetTimeout(DuktapeFunction fn, double ms)
+        {
+            return SetTimeout(fn, (float)ms);
+        }
+
+        public static int SetTimeout(DuktapeFunction fn, float ms)
+        {
+            var id = ++_id;
+            GetRunner().AddTimeout(id, fn, ms * 0.001f);
+            return id;
+        }
+
+        public static int SetInterval(DuktapeFunction fn, double ms)
+        {
+            return SetInterval(fn, (float)ms);
+        }
+
+        public static int SetInterval(DuktapeFunction fn, float ms)
+        {
+            var id = ++_id;
+            GetRunner().AddInterval(id, fn, ms * 0.001f);
+            return id;
+        }
+
+        public static int SetInterval(Action fn, float ms)
+        {
+            var id = ++_id;
+            GetRunner().AddInterval(id, fn, ms * 0.001f);
+            return id;
+        }
+
+        public static bool Clear(int id)
+        {
+            return GetRunner().RemoveTimer(id);
+        }
+
+        private void AddTimeout(int id, DuktapeFunction fn, float seconds)
+        {
+            _timers[id] = StartCoroutine(_Timeout(id, fn, seconds));
+        }
+
+        private void AddInterval(int id, DuktapeFunction fn, float seconds)
+        {
+            _timers[id] = StartCoroutine(_Interval(id, fn, seconds));
+        }
+
+        private void AddInterval(int id, Action fn, float seconds)
+        {
+            _timers[id] = StartCoroutine(_Interval(id, fn, seconds));
+        }
+
+        private void AddLoop(int id, Action fn)
+        {
+            _timers[id] = StartCoroutine(_Loop(id, fn));
+        }
+
+        private bool RemoveTimer(int id)
+        {
+            Coroutine coroutine;
+            if (_timers.TryGetValue(id, out coroutine))
+            {
+                StopCoroutine(coroutine);
+                return _timers.Remove(id);
+            }
+            return false;
+        }
+
+        private IEnumerator _Loop(int id, Action fn)
+        {
+            while (true)
+            {
+                yield return null;
+                fn();
+            }
+        }
+
+        private IEnumerator _Timeout(int id, DuktapeFunction fn, float seconds)
+        {
+            var wait = seconds > 0 ? new WaitForSeconds(seconds) : null;
+            yield return wait;
+            _timers.Remove(id);
+            fn.Invoke();
+        }
+
+        private IEnumerator _Interval(int id, DuktapeFunction fn, float seconds)
+        {
+            var wait = seconds > 0 ? new WaitForSeconds(seconds) : null;
+            while (true)
+            {
+                yield return wait;
+                fn.Invoke();
+            }
+        }
+
+        private IEnumerator _Interval(int id, Action fn, float seconds)
+        {
+            var wait = seconds > 0 ? new WaitForSeconds(seconds) : null;
+            while (true)
+            {
+                yield return wait;
+                fn();
+            }
+        }
+    }
+}
diff --git a/unity/Assets/Duktape/Source/DuktapeVM.cs b/unity/Assets/Duktape/Source/DuktapeVM.cs
index 5e364b4..a74f70f 100644
--- a/unity/Assets/Duktape/Source/DuktapeVM.cs
+++ b/unity/Assets/Duktape/Source/DuktapeVM.cs
@@ -1,528 +1,528 @@
-using System;
-using System.Reflection;
-using System.Collections.Generic;
-
-namespace Duktape
-{
-    using UnityEngine;
-    using duk_ret_t = System.Int32;
-
-    public struct UnrefAction
-    {
-        public uint refid;
-        public object target;
-        public Action<IntPtr, uint, object> action;
-    }
-
-    public class DuktapeVM // : Scripting.ScriptEngine
-    {
-        // duktape-unity 版本, 生成规则发生无法兼容的改变时增加版本号
-        public const int VERSION = 0x10001;
-        public const string HEAP_STASH_PROPS_REGISTRY = "registry";
-        // duk_add_event 生成的 object 中存储 this 的属性名
-        public static readonly string EVENT_PROP_THIS = DuktapeDLL.DUK_HIDDEN_SYMBOL("this");
-        // 在jsobject实例上记录关联的本地对象 object cache refid
-        public static readonly string OBJ_PROP_NATIVE = DuktapeDLL.DUK_HIDDEN_SYMBOL("1");
-        public static readonly string OBJ_PROP_NATIVE_WEAK = DuktapeDLL.DUK_HIDDEN_SYMBOL("2");
-        public static readonly string OBJ_PROP_TYPE = DuktapeDLL.DUK_HIDDEN_SYMBOL("3");
-        // 导出类的js构造函数隐藏属性, 记录在vm中的注册id
-        public static readonly string OBJ_PROP_EXPORTED_REFID = DuktapeDLL.DUK_HIDDEN_SYMBOL("4");
-        // public static readonly string OBJ_PROP_SPECIAL_REFID = DuktapeDLL.DUK_HIDDEN_SYMBOL("special-refid");
-
-        public const string _DuktapeDelegates = "_DuktapeDelegates";
-
-        public const string SPECIAL_ENUM = "Enum";
-        public const string SPECIAL_DELEGATE = "Delegate";
-        public const string SPECIAL_CSHARP = "CSharp";
-
-        private static DuktapeVM _instance;
-        private int _updateTimer;
-        private DuktapeContext _ctx;
-        private IFileSystem _fileManager;
-        private ObjectCache _objectCache = new ObjectCache();
-
-        private List<string> _searchPaths = new List<string>();
-
-        private Queue<UnrefAction> _unrefActions = new Queue<UnrefAction>();
-
-        // 已经导出的本地类
-        private Dictionary<Type, DuktapeFunction> _exported = new Dictionary<Type, DuktapeFunction>();
-        private Dictionary<uint, Type> _exportedTypes = new Dictionary<uint, Type>(); // 从 refid 反查 Type
-
-        private Dictionary<string, DuktapeFunction> _specialTypes = new Dictionary<string, DuktapeFunction>(); // 从 refid 反查 Type
-
-        private Dictionary<Type, MethodInfo> _delegates = new Dictionary<Type, MethodInfo>(); // 委托对应的 duktape 绑定函数
-
-        // private static int _thread = 0;
-
-        private static Dictionary<IntPtr, DuktapeContext> _contexts = new Dictionary<IntPtr, DuktapeContext>();
-        private static IntPtr _lastContextPtr;
-        private static DuktapeContext _lastContext;
-
-        public DuktapeContext context
-        {
-            get { return _ctx; }
-        }
-
-        public IntPtr ctx
-        {
-            get { return _ctx != null ? _ctx.rawValue : IntPtr.Zero; }
-        }
-
-        public DuktapeVM()
-        {
-            _instance = this;
-        }
-
-        public static DuktapeVM GetInstance()
-        {
-            return _instance;
-        }
-
-        public static void addContext(DuktapeContext context)
-        {
-            var ctx = context.rawValue;
-            _contexts[ctx] = context;
-            _lastContext = context;
-            _lastContextPtr = ctx;
-        }
-
-        public static DuktapeContext GetContext(IntPtr ctx)
-        {
-            if (_lastContextPtr == ctx)
-            {
-                return _lastContext;
-            }
-            DuktapeContext context;
-            if (_contexts.TryGetValue(ctx, out context))
-            {
-                _lastContext = context;
-                _lastContextPtr = ctx;
-                return context;
-            }
-            // fixme 如果是 thread 则获取对应 main context
-            return null;
-        }
-
-        // public static DuktapeContext GetContext(IntPtr ctx)
-        // {
-        //     return DuktapeContext.GetContext(ctx);
-        // }
-
-        public static DuktapeVM GetVM(IntPtr ctx)
-        {
-            return DuktapeContext.GetVM(ctx);
-        }
-
-        public static ObjectCache GetObjectCache(IntPtr ctx)
-        {
-            return DuktapeContext.GetVM(ctx)._objectCache;
-        }
-
-        public void AddSearchPath(string path)
-        {
-            if (!_searchPaths.Contains(path))
-            {
-                _searchPaths.Add(path);
-            }
-        }
-
-        public DuktapeFunction GetSpecial(string name)
-        {
-            DuktapeFunction val;
-            if (_specialTypes.TryGetValue(name, out val))
-            {
-                return val;
-            }
-            return null;
-        }
-
-        public uint AddSpecial(string name, DuktapeFunction val)
-        {
-            // Debug.LogFormat("Add Special {0} {1}", name, val.rawValue);
-            var refid = val.rawValue;
-            _specialTypes[name] = val;
-            return refid;
-        }
-
-        public void AddDelegate(Type type, MethodInfo method)
-        {
-            _delegates[type] = method;
-            // Debug.LogFormat("Add Delegate {0} {1}", type, method);
-        }
-
-        public Delegate CreateDelegate(Type type, DuktapeDelegate fn)
-        {
-            MethodInfo method;
-            if (_delegates.TryGetValue(type, out method))
-            {
-                var target = Delegate.CreateDelegate(type, fn, method, true);
-                fn.target = target;
-                return target;
-            }
-            return null;
-        }
-
-        public uint AddExported(Type type, DuktapeFunction fn)
-        {
-            var refid = fn.rawValue;
-            _exported.Add(type, fn);
-            _exportedTypes[refid] = type;
-            // Debug.Log($"add export: {type}");
-            return refid;
-        }
-
-        public Type GetExportedType(uint refid)
-        {
-            Type type;
-            return _exportedTypes.TryGetValue(refid, out type) ? type : null;
-        }
-
-        // 得到注册在js中的类型对应的构造函数
-        public DuktapeFunction GetExported(Type type)
-        {
-            DuktapeFunction value;
-            return _exported.TryGetValue(type, out value) ? value : null;
-        }
-
-        public void GC(uint refid, object target, Action<IntPtr, uint, object> op)
-        {
-            var act = new UnrefAction()
-            {
-                refid = refid,
-                action = op,
-                target = target,
-            };
-            lock (_unrefActions)
-            {
-                _unrefActions.Enqueue(act);
-            }
-        }
-
-        private void OnUpdate()
-        {
-            var ctx = _ctx.rawValue;
-            lock (_unrefActions)
-            {
-                while (true)
-                {
-                    var count = _unrefActions.Count;
-                    if (count == 0)
-                    {
-                        break;
-                    }
-                    var act = _unrefActions.Dequeue();
-                    act.action(ctx, act.refid, act.target);
-                    // Debug.LogFormat("duktape gc {0}", act.refid);
-                }
-            }
-        }
-
-        public static void duk_open_module(IntPtr ctx)
-        {
-            DuktapeDLL.duk_push_object(ctx);
-            DuktapeDLL.duk_push_c_function(ctx, cb_resolve_module, DuktapeDLL.DUK_VARARGS);
-            DuktapeDLL.duk_put_prop_string(ctx, -2, "resolve");
-            DuktapeDLL.duk_push_c_function(ctx, cb_load_module, DuktapeDLL.DUK_VARARGS);
-            DuktapeDLL.duk_put_prop_string(ctx, -2, "load");
-            DuktapeDLL.duk_module_node_init(ctx);
-        }
-
-        public static string EnsureExtension(string filename)
-        {
-            return filename != null && filename.EndsWith(".js") ? filename : filename + ".js";
-        }
-
-        public string ResolvePath(string filename)
-        {
-            if (_fileManager.Exists(filename))
-            {
-                return filename;
-            }
-            for (int i = 0, count = _searchPaths.Count; i < count; i++)
-            {
-                var path = _searchPaths[i];
-                var vpath = PathUtils.Combine(path, filename);
-                if (_fileManager.Exists(vpath))
-                {
-                    return vpath;
-                }
-            }
-            return null;
-        }
-
-        [AOT.MonoPInvokeCallback(typeof(DuktapeDLL.duk_c_function))]
-        private static duk_ret_t cb_resolve_module(IntPtr ctx)
-        {
-            var module_id = EnsureExtension(DuktapeAux.duk_require_string(ctx, 0));
-            var parent_id = DuktapeAux.duk_require_string(ctx, 1);
-            var resolve_to = module_id;
-            // Debug.LogFormat("cb_resolve_module module_id:'{0}', parent_id:'{1}'\n", module_id, parent_id);
-
-            if (module_id.StartsWith("./") || module_id.StartsWith("../") || module_id.Contains("/./") || module_id.Contains("/../"))
-            {
-                // 显式相对路径直接从 parent 模块路径拼接
-                var parent_path = PathUtils.GetDirectoryName(parent_id);
-                try
-                {
-                    resolve_to = PathUtils.ExtractPath(PathUtils.Combine(parent_path, module_id), '/');
-                }
-                catch
-                {
-                    // 不能提升到源代码目录外面
-                    DuktapeDLL.duk_type_error(ctx, "invalid module path (out of sourceRoot): %s", module_id);
-                    return 1;
-                }
-            }
-            // Debug.LogFormat("resolve_cb(1): id:{0}', parent-id:'{1}', resolve-to:'{2}'", module_id, parent_id, resolve_to);
-            // if (GetVM(ctx).ResolvePath(resolve_to) == null)
-            // {
-            //     DuktapeDLL.duk_type_error(ctx, "cannot find module: %s", module_id);
-            //     return 1;
-            // }
-
-            if (resolve_to != null)
-            {
-                DuktapeDLL.duk_push_string(ctx, resolve_to);
-            }
-            else
-            {
-                DuktapeDLL.duk_type_error(ctx, "cannot find module: %s", module_id);
-            }
-            return 1;
-        }
-
-        [AOT.MonoPInvokeCallback(typeof(DuktapeDLL.duk_c_function))]
-        private static duk_ret_t cb_load_module(IntPtr ctx)
-        {
-            var module_id = DuktapeAux.duk_require_string(ctx, 0);
-            DuktapeDLL.duk_get_prop_string(ctx, 2, "filename");
-            var filename = DuktapeAux.duk_require_string(ctx, -1);
-            var resolvedPath = GetVM(ctx).ResolvePath(filename);
-            // Debug.LogFormat("cb_load_module module_id:'{0}', filename:'{1}', resolved:'{2}'\n", module_id, filename, resolvedPath);
-
-            var source = GetVM(ctx)._fileManager.ReadAllText(resolvedPath);
-            if (source != null)
-            {
-                DuktapeDLL.duk_push_string(ctx, source);
-            }
-            else
-            {
-                DuktapeDLL.duk_type_error(ctx, "cannot load module: %s", module_id);
-            }
-
-            return 1;
-        }
-
-        public void Initialize(IFileSystem fs, IDuktapeListener listener)
-        {
-            this._fileManager = fs;
-            var ctx = DuktapeDLL.duk_create_heap_default();
-            this._ctx = new DuktapeContext(this, ctx);
-            DuktapeAux.duk_open(ctx);
-            DuktapeVM.duk_open_module(ctx);
-            DuktapeDLL.duk_unity_open(ctx);
-
-            DuktapeDLL.duk_push_global_object(ctx);
-            DuktapeJSBuiltins.reg(ctx);
-            if (listener != null)
-            {
-                listener.OnTypesBinding(this);
-            }
-            var exportedTypes = this.GetType().Assembly.GetExportedTypes();
-            var ctx_t = new object[] { ctx };
-            var numRegInvoked = 0;
-            for (int i = 0, size = exportedTypes.Length; i < size; i++)
-            {
-                var type = exportedTypes[i];
-#if UNITY_EDITOR
-                if (type.IsDefined(typeof(JSAutoRunAttribute), false))
-                {
-                    try
-                    {
-                        var run = type.GetMethod("Run", BindingFlags.Static | BindingFlags.Public);
-                        if (run != null)
-                        {
-                            run.Invoke(null, null);
-                        }
-                        else
-                        {
-                            Debug.LogError("???");
-                        }
-                    }
-                    catch (Exception exception)
-                    {
-                        Debug.LogWarning(exception);
-                    }
-                    continue;
-                }
-#endif
-                var attributes = type.GetCustomAttributes(typeof(JSBindingAttribute), false);
-                if (attributes.Length == 1)
-                {
-                    var jsBinding = attributes[0] as JSBindingAttribute;
-                    if (jsBinding.Version == 0 || jsBinding.Version == VERSION)
-                    {
-                        var reg = type.GetMethod("reg");
-                        if (reg != null)
-                        {
-                            reg.Invoke(null, ctx_t);
-                            ++numRegInvoked;
-                        }
-                    }
-                    else
-                    {
-                        if (listener != null)
-                        {
-                            listener.OnBindingError(this, type);
-                        }
-                    }
-                }
-            }
-            if (listener != null)
-            {
-                listener.OnBinded(this, numRegInvoked);
-            }
-            // Debug.LogFormat("exported {0} classes", _exported.Count);
-
-            // 设置导出类的继承链
-            foreach (var kv in _exported)
-            {
-                var type = kv.Key;
-                var baseType = type.BaseType;
-                if (baseType == null)
-                {
-                    // Debug.Log($"baseType is null, for {type}");
-                    continue;
-                }
-                var fn = kv.Value;
-                fn.PushPrototype(ctx);
-                if (PushChainedPrototypeOf(ctx, baseType))
-                {
-                    // Debug.LogFormat($"set {type} super {baseType}");
-                    DuktapeDLL.duk_set_prototype(ctx, -2);
-                }
-                else
-                {
-                    Debug.LogWarning($"fail to push prototype, for {type}: {baseType}");
-                }
-                DuktapeDLL.duk_pop(ctx);
-            }
-
-            DuktapeJSBuiltins.postreg(ctx);
-            DuktapeDLL.duk_pop(ctx); // pop global 
-
-            _updateTimer = DuktapeRunner.SetInterval(this.OnUpdate, 100f);
-
-            if (listener != null)
-            {
-                listener.OnLoaded(this);
-            }
-        }
-
-        // 将 type 的 prototype 压栈 （未导出则向父类追溯）
-        // 没有对应的基类 prototype 时, 不压栈
-        public bool PushChainedPrototypeOf(IntPtr ctx, Type baseType)
-        {
-            if (baseType == null)
-            {
-                // Debug.LogFormat("super terminated {0}", baseType);
-                return false;
-            }
-            if (baseType == typeof(Enum))
-            {
-                DuktapeFunction val;
-                if (_specialTypes.TryGetValue(SPECIAL_ENUM, out val))
-                {
-                    val.PushPrototype(ctx);
-                    return true;
-                }
-            }
-            DuktapeFunction fn;
-            if (_exported.TryGetValue(baseType, out fn))
-            {
-                fn.PushPrototype(ctx);
-                return true;
-            }
-            return PushChainedPrototypeOf(ctx, baseType.BaseType);
-        }
-
-        public void EvalSource(string source, string filename)
-        {
-            if (filename == null)
-            {
-                filename = "eval";
-            }
-            if (string.IsNullOrEmpty(source))
-            {
-                return;
-            }
-            var ctx = _ctx.rawValue;
-            DuktapeDLL.duk_push_string(ctx, source);
-            DuktapeDLL.duk_push_string(ctx, filename);
-            if (DuktapeDLL.duk_pcompile(ctx, 0) != 0)
-            {
-                DuktapeAux.PrintError(ctx, -1, filename);
-                DuktapeDLL.duk_pop(ctx);
-            }
-            else
-            {
-                // Debug.LogFormat("check top {0}", DuktapeDLL.duk_get_top(ctx));
-                if (DuktapeDLL.duk_pcall(ctx, 0) != DuktapeDLL.DUK_EXEC_SUCCESS)
-                {
-                    DuktapeAux.PrintError(ctx, -1, filename);
-                }
-                DuktapeDLL.duk_pop(ctx);
-                // Debug.LogFormat("check top {0}", DuktapeDLL.duk_get_top(ctx));
-            }
-        }
-
-        public void EvalFile(string filename)
-        {
-            filename = EnsureExtension(filename);
-            var ctx = _ctx.rawValue;
-            var resolvedPath = ResolvePath(filename);
-            var source = _fileManager.ReadAllText(resolvedPath);
-            EvalSource(source, filename);
-        }
-
-        public void EvalMain(string filename)
-        {
-            filename = EnsureExtension(filename);
-            var ctx = _ctx.rawValue;
-            var top = DuktapeDLL.duk_get_top(ctx);
-            var resolvedPath = ResolvePath(filename);
-            var source = _fileManager.ReadAllText(resolvedPath);
-            DuktapeDLL.duk_push_string(ctx, source);
-            var err = DuktapeDLL.duk_module_node_peval_main(ctx, filename);
-            // var err = DuktapeDLL.duk_peval(ctx);
-            // var err = DuktapeDLL.duk_peval_string_noresult(ctx, source);
-            // Debug.Log($"load main module: {filename} ({resolvedPath})");
-            if (err != 0)
-            {
-                DuktapeAux.PrintError(ctx, -1, filename);
-                // Debug.LogErrorFormat("eval main error: {0}\n{1}", DuktapeDLL.duk_safe_to_string(ctx, -1), filename);
-            }
-            DuktapeDLL.duk_set_top(ctx, top);
-        }
-
-        public void Destroy()
-        {
-            _instance = null;
-            if (_ctx != null)
-            {
-                var ctx = _ctx.rawValue;
-                _ctx.onDestroy();
-                _ctx = null;
-                DuktapeDLL.duk_destroy_heap(ctx);
-                // Debug.LogWarning("duk_destroy_heap");
-            }
-
-            if (_updateTimer != 0)
-            {
-                DuktapeRunner.Clear(_updateTimer);
-                _updateTimer = 0;
-            }
-        }
-    }
+using System;
+using System.Reflection;
+using System.Collections.Generic;
+
+namespace Duktape
+{
+    using UnityEngine;
+    using duk_ret_t = System.Int32;
+
+    public struct UnrefAction
+    {
+        public uint refid;
+        public object target;
+        public Action<IntPtr, uint, object> action;
+    }
+
+    public class DuktapeVM // : Scripting.ScriptEngine
+    {
+        // duktape-unity 版本, 生成规则发生无法兼容的改变时增加版本号
+        public const int VERSION = 0x10001;
+        public const string HEAP_STASH_PROPS_REGISTRY = "registry";
+        // duk_add_event 生成的 object 中存储 this 的属性名
+        public static readonly string EVENT_PROP_THIS = DuktapeDLL.DUK_HIDDEN_SYMBOL("this");
+        // 在jsobject实例上记录关联的本地对象 object cache refid
+        public static readonly string OBJ_PROP_NATIVE = DuktapeDLL.DUK_HIDDEN_SYMBOL("1");
+        public static readonly string OBJ_PROP_NATIVE_WEAK = DuktapeDLL.DUK_HIDDEN_SYMBOL("2");
+        public static readonly string OBJ_PROP_TYPE = DuktapeDLL.DUK_HIDDEN_SYMBOL("3");
+        // 导出类的js构造函数隐藏属性, 记录在vm中的注册id
+        public static readonly string OBJ_PROP_EXPORTED_REFID = DuktapeDLL.DUK_HIDDEN_SYMBOL("4");
+        // public static readonly string OBJ_PROP_SPECIAL_REFID = DuktapeDLL.DUK_HIDDEN_SYMBOL("special-refid");
+
+        public const string _DuktapeDelegates = "_DuktapeDelegates";
+
+        public const string SPECIAL_ENUM = "Enum";
+        public const string SPECIAL_DELEGATE = "Delegate";
+        public const string SPECIAL_CSHARP = "CSharp";
+
+        private static DuktapeVM _instance;
+        private int _updateTimer;
+        private DuktapeContext _ctx;
+        private IFileSystem _fileManager;
+        private ObjectCache _objectCache = new ObjectCache();
+
+        private List<string> _searchPaths = new List<string>();
+
+        private Queue<UnrefAction> _unrefActions = new Queue<UnrefAction>();
+
+        // 已经导出的本地类
+        private Dictionary<Type, DuktapeFunction> _exported = new Dictionary<Type, DuktapeFunction>();
+        private Dictionary<uint, Type> _exportedTypes = new Dictionary<uint, Type>(); // 从 refid 反查 Type
+
+        private Dictionary<string, DuktapeFunction> _specialTypes = new Dictionary<string, DuktapeFunction>(); // 从 refid 反查 Type
+
+        private Dictionary<Type, MethodInfo> _delegates = new Dictionary<Type, MethodInfo>(); // 委托对应的 duktape 绑定函数
+
+        // private static int _thread = 0;
+
+        private static Dictionary<IntPtr, DuktapeContext> _contexts = new Dictionary<IntPtr, DuktapeContext>();
+        private static IntPtr _lastContextPtr;
+        private static DuktapeContext _lastContext;
+
+        public DuktapeContext context
+        {
+            get { return _ctx; }
+        }
+
+        public IntPtr ctx
+        {
+            get { return _ctx != null ? _ctx.rawValue : IntPtr.Zero; }
+        }
+
+        public DuktapeVM()
+        {
+            _instance = this;
+        }
+
+        public static DuktapeVM GetInstance()
+        {
+            return _instance;
+        }
+
+        public static void addContext(DuktapeContext context)
+        {
+            var ctx = context.rawValue;
+            _contexts[ctx] = context;
+            _lastContext = context;
+            _lastContextPtr = ctx;
+        }
+
+        public static DuktapeContext GetContext(IntPtr ctx)
+        {
+            if (_lastContextPtr == ctx)
+            {
+                return _lastContext;
+            }
+            DuktapeContext context;
+            if (_contexts.TryGetValue(ctx, out context))
+            {
+                _lastContext = context;
+                _lastContextPtr = ctx;
+                return context;
+            }
+            // fixme 如果是 thread 则获取对应 main context
+            return null;
+        }
+
+        // public static DuktapeContext GetContext(IntPtr ctx)
+        // {
+        //     return DuktapeContext.GetContext(ctx);
+        // }
+
+        public static DuktapeVM GetVM(IntPtr ctx)
+        {
+            return DuktapeContext.GetVM(ctx);
+        }
+
+        public static ObjectCache GetObjectCache(IntPtr ctx)
+        {
+            return DuktapeContext.GetVM(ctx)._objectCache;
+        }
+
+        public void AddSearchPath(string path)
+        {
+            if (!_searchPaths.Contains(path))
+            {
+                _searchPaths.Add(path);
+            }
+        }
+
+        public DuktapeFunction GetSpecial(string name)
+        {
+            DuktapeFunction val;
+            if (_specialTypes.TryGetValue(name, out val))
+            {
+                return val;
+            }
+            return null;
+        }
+
+        public uint AddSpecial(string name, DuktapeFunction val)
+        {
+            // Debug.LogFormat("Add Special {0} {1}", name, val.rawValue);
+            var refid = val.rawValue;
+            _specialTypes[name] = val;
+            return refid;
+        }
+
+        public void AddDelegate(Type type, MethodInfo method)
+        {
+            _delegates[type] = method;
+            // Debug.LogFormat("Add Delegate {0} {1}", type, method);
+        }
+
+        public Delegate CreateDelegate(Type type, DuktapeDelegate fn)
+        {
+            MethodInfo method;
+            if (_delegates.TryGetValue(type, out method))
+            {
+                var target = Delegate.CreateDelegate(type, fn, method, true);
+                fn.target = target;
+                return target;
+            }
+            return null;
+        }
+
+        public uint AddExported(Type type, DuktapeFunction fn)
+        {
+            var refid = fn.rawValue;
+            _exported.Add(type, fn);
+            _exportedTypes[refid] = type;
+            // Debug.Log($"add export: {type}");
+            return refid;
+        }
+
+        public Type GetExportedType(uint refid)
+        {
+            Type type;
+            return _exportedTypes.TryGetValue(refid, out type) ? type : null;
+        }
+
+        // 得到注册在js中的类型对应的构造函数
+        public DuktapeFunction GetExported(Type type)
+        {
+            DuktapeFunction value;
+            return _exported.TryGetValue(type, out value) ? value : null;
+        }
+
+        public void GC(uint refid, object target, Action<IntPtr, uint, object> op)
+        {
+            var act = new UnrefAction()
+            {
+                refid = refid,
+                action = op,
+                target = target,
+            };
+            lock (_unrefActions)
+            {
+                _unrefActions.Enqueue(act);
+            }
+        }
+
+        private void OnUpdate()
+        {
+            var ctx = _ctx.rawValue;
+            lock (_unrefActions)
+            {
+                while (true)
+                {
+                    var count = _unrefActions.Count;
+                    if (count == 0)
+                    {
+                        break;
+                    }
+                    var act = _unrefActions.Dequeue();
+                    act.action(ctx, act.refid, act.target);
+                    // Debug.LogFormat("duktape gc {0}", act.refid);
+                }
+            }
+        }
+
+        public static void duk_open_module(IntPtr ctx)
+        {
+            DuktapeDLL.duk_push_object(ctx);
+            DuktapeDLL.duk_push_c_function(ctx, cb_resolve_module, DuktapeDLL.DUK_VARARGS);
+            DuktapeDLL.duk_put_prop_string(ctx, -2, "resolve");
+            DuktapeDLL.duk_push_c_function(ctx, cb_load_module, DuktapeDLL.DUK_VARARGS);
+            DuktapeDLL.duk_put_prop_string(ctx, -2, "load");
+            DuktapeDLL.duk_module_node_init(ctx);
+        }
+
+        public static string EnsureExtension(string filename)
+        {
+            return filename != null && filename.EndsWith(".js") ? filename : filename + ".js";
+        }
+
+        public string ResolvePath(string filename)
+        {
+            if (_fileManager.Exists(filename))
+            {
+                return filename;
+            }
+            for (int i = 0, count = _searchPaths.Count; i < count; i++)
+            {
+                var path = _searchPaths[i];
+                var vpath = PathUtils.Combine(path, filename);
+                if (_fileManager.Exists(vpath))
+                {
+                    return vpath;
+                }
+            }
+            return null;
+        }
+
+        [AOT.MonoPInvokeCallback(typeof(DuktapeDLL.duk_c_function))]
+        private static duk_ret_t cb_resolve_module(IntPtr ctx)
+        {
+            var module_id = EnsureExtension(DuktapeAux.duk_require_string(ctx, 0));
+            var parent_id = DuktapeAux.duk_require_string(ctx, 1);
+            var resolve_to = module_id;
+            // Debug.LogFormat("cb_resolve_module module_id:'{0}', parent_id:'{1}'\n", module_id, parent_id);
+
+            if (module_id.StartsWith("./") || module_id.StartsWith("../") || module_id.Contains("/./") || module_id.Contains("/../"))
+            {
+                // 显式相对路径直接从 parent 模块路径拼接
+                var parent_path = PathUtils.GetDirectoryName(parent_id);
+                try
+                {
+                    resolve_to = PathUtils.ExtractPath(PathUtils.Combine(parent_path, module_id), '/');
+                }
+                catch
+                {
+                    // 不能提升到源代码目录外面
+                    DuktapeDLL.duk_type_error(ctx, "invalid module path (out of sourceRoot): %s", module_id);
+                    return 1;
+                }
+            }
+            // Debug.LogFormat("resolve_cb(1): id:{0}', parent-id:'{1}', resolve-to:'{2}'", module_id, parent_id, resolve_to);
+            // if (GetVM(ctx).ResolvePath(resolve_to) == null)
+            // {
+            //     DuktapeDLL.duk_type_error(ctx, "cannot find module: %s", module_id);
+            //     return 1;
+            // }
+
+            if (resolve_to != null)
+            {
+                DuktapeDLL.duk_push_string(ctx, resolve_to);
+            }
+            else
+            {
+                DuktapeDLL.duk_type_error(ctx, "cannot find module: %s", module_id);
+            }
+            return 1;
+        }
+
+        [AOT.MonoPInvokeCallback(typeof(DuktapeDLL.duk_c_function))]
+        private static duk_ret_t cb_load_module(IntPtr ctx)
+        {
+            var module_id = DuktapeAux.duk_require_string(ctx, 0);
+            DuktapeDLL.duk_get_prop_string(ctx, 2, "filename");
+            var filename = DuktapeAux.duk_require_string(ctx, -1);
+            var resolvedPath = GetVM(ctx).ResolvePath(filename);
+            // Debug.LogFormat("cb_load_module module_id:'{0}', filename:'{1}', resolved:'{2}'\n", module_id, filename, resolvedPath);
+
+            var source = GetVM(ctx)._fileManager.ReadAllText(resolvedPath);
+            if (source != null)
+            {
+                DuktapeDLL.duk_push_string(ctx, source);
+            }
+            else
+            {
+                DuktapeDLL.duk_type_error(ctx, "cannot load module: %s", module_id);
+            }
+
+            return 1;
+        }
+
+        public void Initialize(IFileSystem fs, IDuktapeListener listener)
+        {
+            this._fileManager = fs;
+            var ctx = DuktapeDLL.duk_create_heap_default();
+            this._ctx = new DuktapeContext(this, ctx);
+            DuktapeAux.duk_open(ctx);
+            DuktapeVM.duk_open_module(ctx);
+            DuktapeDLL.duk_unity_open(ctx);
+
+            DuktapeDLL.duk_push_global_object(ctx);
+            DuktapeJSBuiltins.reg(ctx);
+            if (listener != null)
+            {
+                listener.OnTypesBinding(this);
+            }
+            var exportedTypes = this.GetType().Assembly.GetExportedTypes();
+            var ctx_t = new object[] { ctx };
+            var numRegInvoked = 0;
+            for (int i = 0, size = exportedTypes.Length; i < size; i++)
+            {
+                var type = exportedTypes[i];
+#if UNITY_EDITOR
+                if (type.IsDefined(typeof(JSAutoRunAttribute), false))
+                {
+                    try
+                    {
+                        var run = type.GetMethod("Run", BindingFlags.Static | BindingFlags.Public);
+                        if (run != null)
+                        {
+                            run.Invoke(null, null);
+                        }
+                        else
+                        {
+                            Debug.LogError("???");
+                        }
+                    }
+                    catch (Exception exception)
+                    {
+                        Debug.LogWarning(exception);
+                    }
+                    continue;
+                }
+#endif
+                var attributes = type.GetCustomAttributes(typeof(JSBindingAttribute), false);
+                if (attributes.Length == 1)
+                {
+                    var jsBinding = attributes[0] as JSBindingAttribute;
+                    if (jsBinding.Version == 0 || jsBinding.Version == VERSION)
+                    {
+                        var reg = type.GetMethod("reg");
+                        if (reg != null)
+                        {
+                            reg.Invoke(null, ctx_t);
+                            ++numRegInvoked;
+                        }
+                    }
+                    else
+                    {
+                        if (listener != null)
+                        {
+                            listener.OnBindingError(this, type);
+                        }
+                    }
+                }
+            }
+            if (listener != null)
+            {
+                listener.OnBinded(this, numRegInvoked);
+            }
+            // Debug.LogFormat("exported {0} classes", _exported.Count);
+
+            // 设置导出类的继承链
+            foreach (var kv in _exported)
+            {
+                var type = kv.Key;
+                var baseType = type.BaseType;
+                if (baseType == null)
+                {
+                    // Debug.Log($"baseType is null, for {type}");
+                    continue;
+                }
+                var fn = kv.Value;
+                fn.PushPrototype(ctx);
+                if (PushChainedPrototypeOf(ctx, baseType))
+                {
+                    // Debug.LogFormat($"set {type} super {baseType}");
+                    DuktapeDLL.duk_set_prototype(ctx, -2);
+                }
+                else
+                {
+                    Debug.LogWarning($"fail to push prototype, for {type}: {baseType}");
+                }
+                DuktapeDLL.duk_pop(ctx);
+            }
+
+            DuktapeJSBuiltins.postreg(ctx);
+            DuktapeDLL.duk_pop(ctx); // pop global 
+
+            _updateTimer = DuktapeRunner.SetInterval(this.OnUpdate, 100f);
+
+            if (listener != null)
+            {
+                listener.OnLoaded(this);
+            }
+        }
+
+        // 将 type 的 prototype 压栈 （未导出则向父类追溯）
+        // 没有对应的基类 prototype 时, 不压栈
+        public bool PushChainedPrototypeOf(IntPtr ctx, Type baseType)
+        {
+            if (baseType == null)
+            {
+                // Debug.LogFormat("super terminated {0}", baseType);
+                return false;
+            }
+            if (baseType == typeof(Enum))
+            {
+                DuktapeFunction val;
+                if (_specialTypes.TryGetValue(SPECIAL_ENUM, out val))
+                {
+                    val.PushPrototype(ctx);
+                    return true;
+                }
+            }
+            DuktapeFunction fn;
+            if (_exported.TryGetValue(baseType, out fn))
+            {
+                fn.PushPrototype(ctx);
+                return true;
+            }
+            return PushChainedPrototypeOf(ctx, baseType.BaseType);
+        }
+
+        public void EvalSource(string source, string filename)
+        {
+            if (filename == null)
+            {
+                filename = "eval";
+            }
+            if (string.IsNullOrEmpty(source))
+            {
+                return;
+            }
+            var ctx = _ctx.rawValue;
+            DuktapeDLL.duk_push_string(ctx, source);
+            DuktapeDLL.duk_push_string(ctx, filename);
+            if (DuktapeDLL.duk_pcompile(ctx, 0) != 0)
+            {
+                DuktapeAux.PrintError(ctx, -1, filename);
+                DuktapeDLL.duk_pop(ctx);
+            }
+            else
+            {
+                // Debug.LogFormat("check top {0}", DuktapeDLL.duk_get_top(ctx));
+                if (DuktapeDLL.duk_pcall(ctx, 0) != DuktapeDLL.DUK_EXEC_SUCCESS)
+                {
+                    DuktapeAux.PrintError(ctx, -1, filename);
+                }
+                DuktapeDLL.duk_pop(ctx);
+                // Debug.LogFormat("check top {0}", DuktapeDLL.duk_get_top(ctx));
+            }
+        }
+
+        public void EvalFile(string filename)
+        {
+            filename = EnsureExtension(filename);
+            var ctx = _ctx.rawValue;
+            var resolvedPath = ResolvePath(filename);
+            var source = _fileManager.ReadAllText(resolvedPath);
+            EvalSource(source, filename);
+        }
+
+        public void EvalMain(string filename)
+        {
+            filename = EnsureExtension(filename);
+            var ctx = _ctx.rawValue;
+            var top = DuktapeDLL.duk_get_top(ctx);
+            var resolvedPath = ResolvePath(filename);
+            var source = _fileManager.ReadAllText(resolvedPath);
+            DuktapeDLL.duk_push_string(ctx, source);
+            var err = DuktapeDLL.duk_module_node_peval_main(ctx, filename);
+            // var err = DuktapeDLL.duk_peval(ctx);
+            // var err = DuktapeDLL.duk_peval_string_noresult(ctx, source);
+            // Debug.Log($"load main module: {filename} ({resolvedPath})");
+            if (err != 0)
+            {
+                DuktapeAux.PrintError(ctx, -1, filename);
+                // Debug.LogErrorFormat("eval main error: {0}\n{1}", DuktapeDLL.duk_safe_to_string(ctx, -1), filename);
+            }
+            DuktapeDLL.duk_set_top(ctx, top);
+        }
+
+        public void Destroy()
+        {
+            _instance = null;
+            if (_ctx != null)
+            {
+                var ctx = _ctx.rawValue;
+                _ctx.onDestroy();
+                _ctx = null;
+                DuktapeDLL.duk_destroy_heap(ctx);
+                // Debug.LogWarning("duk_destroy_heap");
+            }
+
+            if (_updateTimer != 0)
+            {
+                DuktapeRunner.Clear(_updateTimer);
+                _updateTimer = 0;
+            }
+        }
+    }
 }
\ No newline at end of file
diff --git a/unity/Assets/Duktape/Source/PathUtils.cs b/unity/Assets/Duktape/Source/PathUtils.cs
index 7454494..3309b93 100644
--- a/unity/Assets/Duktape/Source/PathUtils.cs
+++ b/unity/Assets/Duktape/Source/PathUtils.cs
@@ -1,55 +1,55 @@
-using System;
-using System.Collections.Generic;
-
-namespace Duktape
-{
-    public static class PathUtils
-    {
-        public static string GetDirectoryName(string path)
-        {
-            return string.IsNullOrEmpty(path) ? path : System.IO.Path.GetDirectoryName(path).Replace('\\', '/');
-        }
-
-        public static string Combine(string path1, string path2)
-        {
-            return System.IO.Path.Combine(path1, path2).Replace('\\', '/');
-        }
-
-        public static string Combine(string path1, string path2, string path3)
-        {
-            return System.IO.Path.Combine(path1, path2, path3).Replace('\\', '/');
-        }
-
-        public static string Combine(string path1, string path2, string path3, string path4)
-        {
-            return System.IO.Path.Combine(path1, path2, path3, path4).Replace('\\', '/');
-        }
-
-        public static string Combine(params string[] paths)
-        {
-            return System.IO.Path.Combine(paths).Replace('\\', '/');
-        }
-
-        /// 展开路径中的 ./..
-        public static string ExtractPath(string path, char sp)
-        {
-            var items = path.Split(sp);
-            if (items.Length < 2)
-            {
-                return path;
-            }
-            var array = new List<string>(items.Length);
-            for (var i = 0; i < items.Length; i++)
-            {
-                var item = items[i];
-                switch (item)
-                {
-                    case ".": break;
-                    case "..": array.RemoveAt(array.Count - 1); break;
-                    default: array.Add(item); break;
-                }
-            }
-            return Combine(array.ToArray());
-        }
-    }
+using System;
+using System.Collections.Generic;
+
+namespace Duktape
+{
+    public static class PathUtils
+    {
+        public static string GetDirectoryName(string path)
+        {
+            return string.IsNullOrEmpty(path) ? path : System.IO.Path.GetDirectoryName(path).Replace('\\', '/');
+        }
+
+        public static string Combine(string path1, string path2)
+        {
+            return System.IO.Path.Combine(path1, path2).Replace('\\', '/');
+        }
+
+        public static string Combine(string path1, string path2, string path3)
+        {
+            return System.IO.Path.Combine(path1, path2, path3).Replace('\\', '/');
+        }
+
+        public static string Combine(string path1, string path2, string path3, string path4)
+        {
+            return System.IO.Path.Combine(path1, path2, path3, path4).Replace('\\', '/');
+        }
+
+        public static string Combine(params string[] paths)
+        {
+            return System.IO.Path.Combine(paths).Replace('\\', '/');
+        }
+
+        /// 展开路径中的 ./..
+        public static string ExtractPath(string path, char sp)
+        {
+            var items = path.Split(sp);
+            if (items.Length < 2)
+            {
+                return path;
+            }
+            var array = new List<string>(items.Length);
+            for (var i = 0; i < items.Length; i++)
+            {
+                var item = items[i];
+                switch (item)
+                {
+                    case ".": break;
+                    case "..": array.RemoveAt(array.Count - 1); break;
+                    default: array.Add(item); break;
+                }
+            }
+            return Combine(array.ToArray());
+        }
+    }
 }
\ No newline at end of file