From 280496d238e158c351d05bcfb66226522c3c3f9d Mon Sep 17 00:00:00 2001
From: dongfo <dongfo@foxmail.com>
Date: Mon, 4 Mar 2019 11:26:14 +0800
Subject: [PATCH] =?UTF-8?q?1.=E6=A0=BC=E5=BC=8F=E8=B0=83=E6=95=B4=202.?=
 =?UTF-8?q?=E6=96=B0=E5=A2=9EFastActivator?=
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---
 src/PaySharp.Core/FastActivator.cs    | 32 +++++++++++++++++++++++++++
 src/PaySharp.Wechatpay/ConvertUtil.cs | 12 ++++------
 2 files changed, 36 insertions(+), 8 deletions(-)
 create mode 100644 src/PaySharp.Core/FastActivator.cs

diff --git a/src/PaySharp.Core/FastActivator.cs b/src/PaySharp.Core/FastActivator.cs
new file mode 100644
index 0000000..e4ab82c
--- /dev/null
+++ b/src/PaySharp.Core/FastActivator.cs
@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Reflection;
+using System.Linq.Expressions;
+
+namespace PaySharp.Core
+{
+    public static class FastActivator
+    {
+        public static Func<T, TResult> Generate<T, TResult>()
+        {
+            ConstructorInfo constructorInfo = typeof(TResult).GetConstructor(new Type[] { typeof(T), });
+#if DEBUG
+            ParameterInfo[] parameters = constructorInfo.GetParameters();
+            ParameterExpression parameterExpression = Expression.Parameter(typeof(T), parameters[0].Name);
+#else
+            ParameterExpression parameterExpression = Expression.Parameter(typeof(T));
+#endif
+            Expression<Func<T, TResult>> expression = Expression.Lambda<Func<T, TResult>>(
+                Expression.New(
+                    constructorInfo,
+                    parameterExpression),
+                parameterExpression);
+            Func<T, TResult> functor = expression.Compile();
+            return functor;
+        }
+        
+    }
+}
diff --git a/src/PaySharp.Wechatpay/ConvertUtil.cs b/src/PaySharp.Wechatpay/ConvertUtil.cs
index c3a4c2f..8141027 100644
--- a/src/PaySharp.Wechatpay/ConvertUtil.cs
+++ b/src/PaySharp.Wechatpay/ConvertUtil.cs
@@ -10,14 +10,7 @@ namespace PaySharp.Wechatpay
 {
     internal static class ConvertUtil
     {
-        /// <summary>
-        /// 递归获取微信返回值列表
-        /// </summary>
-        /// <typeparam name="T"></typeparam>
-        /// <typeparam name="TChildren"></typeparam>
-        /// <param name="gatewayData"></param>
-        /// <param name="index"></param>
-        /// <returns></returns>
+
         public static List<T> ToList<T, TChildren>(GatewayData gatewayData, int index) where T:new() where TChildren:new()
         {
             var flag = true;
@@ -73,6 +66,7 @@ public static List<T> ToList<T, TChildren>(GatewayData gatewayData, int index) w
 
             return list;
         }
+
         /// <summary>
         /// 获取字段json中的名字
         /// </summary>
@@ -93,6 +87,7 @@ private static string GetRealName(System.Reflection.PropertyInfo item)
 
             return key;
         }
+
         /// <summary>
         /// 将微信返回值特殊格式转化为列表
         /// </summary>
@@ -118,6 +113,7 @@ private static string GetRealName(System.Reflection.PropertyInfo item)
             }
             return list;
         }
+
         /// <summary>
         /// 将微信返回值特殊格式转化为列表(二级)
         /// </summary>