- 修复 <object> + AsType + (a as BaseEntity) 解析问题；#1427

Author: 2881099

FreeSql.DbContext/FreeSql.DbContext.xml

@@ -1,4 +1,4 @@
-using FreeSql.DataAnnotations;
+using FreeSql.DataAnnotations;
 using FreeSql.Tests.DataContext.SqlServer;
 using System;
 using System.Collections.Generic;
@@ -30,6 +30,25 @@ class Topic
             public DateTime CreateTime { get; set; }
         }
 
+        abstract class EntityBase
+        {
+            public int Id { get; set; }
+        }
+        class SysDictionnary : EntityBase
+        {
+            public string Name { get; set; }
+        }
+        [Fact]
+        public void AsType()
+        {
+            var fsql = g.sqlserver;
+
+            var delsid = new[] { 1, 2, 3, 4 }; 
+            var sqlsss22222 = fsql.Delete<object>().AsType(typeof(SysDictionnary))
+                .Where(o => delsid.Contains((o as EntityBase).Id))
+                .ToSql();
+        }
+
         [Fact]
         public void Dywhere()
         {

FreeSql.Tests/FreeSql.Tests/SqlServer/Curd/SqlServerDeleteTest.cs

@@ -1748,7 +1748,7 @@ public string ExpressionLambdaToSql(Expression exp, ExpTSC tsc)
                                 if (oper2.NodeType == ExpressionType.Parameter)
                                 {
                                     var oper2Parm = oper2 as ParameterExpression;
-                                    if (exp2.Type.IsAbstract || exp2.Type.IsInterface || exp2.Type.IsAssignableFrom(oper2Parm.Type))
+                                    if (oper2Parm.Type != typeof(object) && (exp2.Type.IsAbstract || exp2.Type.IsInterface || exp2.Type.IsAssignableFrom(oper2Parm.Type)))
                                         expStack.Push(oper2Parm);
                                     else if (oper2Parm.Type != typeof(object) && oper2Parm.Type.IsAssignableFrom(exp2.Type))
                                         expStack.Push(oper2Parm);