Add ProjectToAttribute

Author: chaowlert

src/Mapster.Async.Tests/AsyncTest.cs

@@ -1,8 +1,5 @@
 using System;
-using System.Linq.Expressions;
-using System.Threading;
 using System.Threading.Tasks;
-using ExpressionDebugger;
 using Microsoft.VisualStudio.TestTools.UnitTesting;
 using Shouldly;
 

src/Mapster.Core/Attributes/BaseAdaptAttribute.cs

@@ -46,4 +46,17 @@ public class AdaptTwoWaysAttribute : AdaptToAttribute
         public AdaptTwoWaysAttribute(Type type) : base(type) { }
         public AdaptTwoWaysAttribute(string name) : base(name) { }
     }
+
+    public class ProjectToAttribute : AdaptToAttribute
+    {
+        public ProjectToAttribute(Type type) : base(type)
+        {
+            MapType = MapType.Projection;
+        }
+
+        public ProjectToAttribute(string name) : base(name)
+        {
+            MapType = MapType.Projection;
+        }
+    }
 }

src/Mapster.Tool/Program.cs

@@ -389,7 +389,7 @@ private static void GenerateExtensions(ExtensionOptions opt)
                     {
                         var tuple = new TypeTuple(type, toType);
                         var mapType = attr.MapType == 0
-                            ? MapType.Map | MapType.MapToTarget | MapType.Projection
+                            ? MapType.Map | MapType.MapToTarget
                             : attr.MapType;
                         GenerateExtensionMethods(mapType, cloned, tuple, translator, type, mapperAttr.IsHelperClass);
                     }