refactor(flow) : 重新实现了UIContextOperation的注入逻辑，为后续开发Avalonia版本的编辑器做准备。

Library/Utils/JsonHelper.cs

@@ -12,7 +12,7 @@ namespace Serein.Library.Utils
         /// <summary>
         /// Json门户类，需要你提供实现
         /// </summary>
-        private static IJsonProvider provider;
+        public static IJsonProvider Provider { get; private set; }
 
         /// <summary>
         /// 使用第三方包进行解析
@@ -20,7 +20,7 @@ namespace Serein.Library.Utils
         /// <param name="jsonPortal"></param>
         public static void UseJsonProvider(IJsonProvider jsonPortal)
         {
-            JsonHelper.provider = jsonPortal;
+            JsonHelper.Provider = jsonPortal;
         }
 
         /// <summary>
@@ -32,7 +32,7 @@ namespace Serein.Library.Utils
 
         public static T Deserialize<T>(string jsonText)
         {
-            return provider.Deserialize<T>(jsonText);
+            return Provider.Deserialize<T>(jsonText);
         }
 
         /// <summary>
@@ -43,7 +43,7 @@ namespace Serein.Library.Utils
         /// <returns></returns>
         public static object Deserialize(string jsonText, Type type)
         {
-            return provider.Deserialize(jsonText, type);
+            return Provider.Deserialize(jsonText, type);
 
         }
 
@@ -55,7 +55,7 @@ namespace Serein.Library.Utils
 
         public static IJsonToken Parse(string json)
         {
-            return provider.Parse(json);
+            return Provider.Parse(json);
         }
 
         /// <summary>
@@ -66,7 +66,7 @@ namespace Serein.Library.Utils
         /// <returns></returns>
         public static bool TryParse(string json, out IJsonToken jsonToken)
         {
-            return provider.TryParse(json, out jsonToken);
+            return Provider.TryParse(json, out jsonToken);
         }
 
 
@@ -78,7 +78,7 @@ namespace Serein.Library.Utils
         /// <returns></returns>
         public static string Serialize(object obj)
         {
-            return provider.Serialize(obj);
+            return Provider.Serialize(obj);
         }
 
         /// <summary>
@@ -90,7 +90,7 @@ namespace Serein.Library.Utils
         {
             var dict = new Dictionary<string, object>();
             init(dict);
-            return provider.CreateObject(dict);
+            return Provider.CreateObject(dict);
         }
 
         /// <summary>
@@ -100,7 +100,7 @@ namespace Serein.Library.Utils
         /// <returns></returns>
         public static IJsonToken Array(IEnumerable<object> values)
         {
-            return provider.CreateArray(values);
+            return Provider.CreateArray(values);
         }
 
         /// <summary>
@@ -111,8 +111,8 @@ namespace Serein.Library.Utils
         public static IJsonToken FromObject(object obj)
         {
             if (obj is System.Collections.IEnumerable && !(obj is string))
-                return provider.CreateObject(obj as IDictionary<string, object>);
-            return provider.CreateArray(obj as IEnumerable<object>);
+                return Provider.CreateObject(obj as IDictionary<string, object>);
+            return Provider.CreateArray(obj as IEnumerable<object>);
 
         }
     }

Library/Utils/SereinIoc.cs

@@ -2,6 +2,7 @@
 using System;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
+using System.ComponentModel;
 using System.Diagnostics;
 using System.Linq;
 using System.Reflection;
@@ -9,7 +10,18 @@ using System.Text;
 
 namespace Serein.Library.Utils
 {
-
+    /// <summary>
+    /// 指示IOC扫描构造函数时的行为
+    /// </summary>
+    [AttributeUsage(AttributeTargets.Constructor)]
+    public sealed class SereinIOCCtorAttribute : Attribute
+    {
+        /// <summary>
+        /// 忽略该构造函数
+        /// </summary>
+        public bool IsIgnore = false;
+    }
+    
     /// <summary>
     /// 一个轻量级的单例IOC容器
     /// </summary>
@@ -380,7 +392,19 @@ namespace Serein.Library.Utils
         /// <returns></returns>
         private ConstructorInfo[] GetConstructor(Type type)
         {
-            return type.GetConstructors().OrderByDescending(ctor => ctor.GetParameters().Length).ToArray();
+            return type.GetConstructors().Where(ctor =>
+                {
+                    var attribute = ctor.GetCustomAttribute<SereinIOCCtorAttribute>();
+                    if (attribute is null)
+                    {
+                        return true;
+                    }
+                    else
+                    {
+                        return !attribute.IsIgnore;
+                    }
+                })
+                .OrderByDescending(ctor => ctor.GetParameters().Length).ToArray();
         }
 
         /// <summary>
@@ -556,6 +580,11 @@ namespace Serein.Library.Utils
                 if (typeName.Equals("Serein.Library.LightweightFlowEnvironment"))
                 {
 
+                }
+
+                if (_registerCallback.TryGetValue(typeName, out var registerCallback))
+                {
+                    
                 }
                 if (_dependencies.ContainsKey(typeName))
                 {

Library/Utils/UIContextOperation.cs

@@ -34,11 +34,15 @@ namespace Serein.Library.Utils
 
             }
         }
+        
+        
+
 
         /// <summary>
         /// 传入UI线程上下文
         /// </summary>
         /// <param name="synchronizationContext">线程上下文</param>
+        [SereinIOCCtor(IsIgnore =  true)]
         public UIContextOperation(SynchronizationContext synchronizationContext)
         {
             this.context = synchronizationContext;
@@ -48,6 +52,7 @@ namespace Serein.Library.Utils
         /// 传入获取UI线程上下文的闭包创建
         /// </summary>
         /// <param name="getUiContext">获取线程上下文的闭包函数</param>
+        [SereinIOCCtor(IsIgnore =  true)]
         public UIContextOperation(Func<SynchronizationContext> getUiContext)
         {
             this.getUiContext = getUiContext;