Merge pull request #101 from AutoMapper/SupportIncludeMembers

Support include members

Author: BlaiseD

src/AutoMapper.Extensions.ExpressionMapping/Extensions/VisitorExtensions.cs

@@ -67,14 +67,14 @@ public static string GetPropertyFullName(this Expression expression)
             }
         }
 
-        private static Expression GetUnconvertedMemberExpression(this Expression expression)
+        public static Expression GetUnconvertedExpression(this Expression expression)
         {
             switch (expression.NodeType)
             {
                 case ExpressionType.Convert:
                 case ExpressionType.ConvertChecked:
                 case ExpressionType.TypeAs:
-                    return ((UnaryExpression)expression).Operand.GetUnconvertedMemberExpression();
+                    return ((UnaryExpression)expression).Operand.GetUnconvertedExpression();
                 default:
                     return expression;
             }
@@ -85,18 +85,18 @@ public static Expression ConvertTypeIfNecessary(this Expression expression, Type
             if (memberType == expression.Type)
                 return expression;
 
-            expression = expression.GetUnconvertedMemberExpression();
+            expression = expression.GetUnconvertedExpression();
             if (memberType != expression.Type)
                 return Expression.Convert(expression, memberType);
 
             return expression;
         }
 
         public static MemberExpression GetMemberExpression(this LambdaExpression expr)
-            => expr.Body.GetUnconvertedMemberExpression() as MemberExpression;
+            => expr.Body.GetUnconvertedExpression() as MemberExpression;
 
         public static MemberExpression GetMemberExpression(this Expression expr)
-            => expr.GetUnconvertedMemberExpression() as MemberExpression;
+            => expr.GetUnconvertedExpression() as MemberExpression;
 
         /// <summary>
         /// Returns the ParameterExpression for the LINQ parameter.
@@ -181,7 +181,7 @@ public static string GetMemberFullName(this LambdaExpression expr)
                 case ExpressionType.Convert:
                 case ExpressionType.ConvertChecked:
                 case ExpressionType.TypeAs:
-                    me = expr.Body.GetUnconvertedMemberExpression() as MemberExpression;
+                    me = expr.Body.GetUnconvertedExpression() as MemberExpression;
                     break;
                 default:
                     me = expr.Body as MemberExpression;

src/AutoMapper.Extensions.ExpressionMapping/MapperExtensions.cs

@@ -1,4 +1,5 @@
-using AutoMapper.Internal;
+using AutoMapper.Extensions.ExpressionMapping.Extensions;
+using AutoMapper.Internal;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -113,9 +114,19 @@ TDestDelegate GetLambda(Dictionary<Type, Type> typeMappings, XpressionMapperVisi
                 return (TDestDelegate)Lambda
                 (
                     typeDestFunc,
-                    shouldConvertMappedBodyToDestType(typeDestFunc) ? ExpressionFactory.ToType(mappedBody, typeDestFunc.GetGenericArguments().Last()) : mappedBody,
+                    ConvertBody(),
                     expression.GetDestinationParameterExpressions(visitor.InfoDictionary, typeMappings)
                 );
+
+                Expression ConvertBody()
+                {
+                    if (!shouldConvertMappedBodyToDestType(typeDestFunc))
+                        return mappedBody;
+
+                    mappedBody = mappedBody.GetUnconvertedExpression();
+
+                    return ExpressionFactory.ToType(mappedBody, typeDestFunc.GetGenericArguments().Last());
+                }
             }
         }