Fix intentionally "empty" member causes ANE in serializer generation. Issue #145

Author: yfakariya

src/MsgPack/Serialization/SerializerGenerator.cs

@@ -486,7 +486,7 @@ private static IEnumerable<Type> ExtractElementTypes( SerializationContext conte
 						foreach (
 							var dependentType in
 								SerializationTarget.Prepare( context, type )
-								.Members.SelectMany( m => ExtractElementTypes( context, configuration, m.Member.GetMemberValueType() ) ) 
+								.Members.Where( m => m.Member != null ).SelectMany( m => ExtractElementTypes( context, configuration, m.Member.GetMemberValueType() ) ) 
 						)
 						{
 							yield return dependentType;

test/MsgPack.UnitTest/Serialization/RegressionTests.cs

@@ -266,7 +266,7 @@ public void Issue143()
 					new int[] { 9, 8 },
 					909
 				};
-			var serializer = MessagePackSerializer.Get<object>();
+			var serializer = MessagePackSerializer.Get<object>( new SerializationContext() );
 			var packedBinary = serializer.PackSingleObject( array );
 			var unpacked = serializer.UnpackSingleObject( packedBinary );
 			var unpackedList = ( ( MessagePackObject )unpacked ).AsList();
@@ -279,5 +279,38 @@ public void Issue143()
 			Assert.That( unpackedList[ 2 ].AsList()[ 1 ] == 8 );
 			Assert.That( unpackedList[ 3 ] == 909 );
 		}
+
+#if !NETFX_CORE && !WINDOWS_PHONE && !XAMIOS && !XAMDROID && !UNITY
+		[Test]
+		public void Issue145()
+		{
+			var results =
+				SerializerGenerator.GenerateSerializerSourceCodes(
+					new SerializerCodeGenerationConfiguration
+					{
+						EnumSerializationMethod = EnumSerializationMethod.ByUnderlyingValue,
+						IsRecursive = true,
+						OutputDirectory = Path.GetTempPath(),
+						WithNullableSerializers = false,
+						PreferReflectionBasedSerializer = true,
+						SerializationMethod = SerializationMethod.Array
+					},
+					typeof( Issue145Class )
+				).ToArray();
+			foreach ( var result in results )
+			{
+				File.Delete( result.FilePath );
+			}
+		}
+
+		[DataContract]
+		public class Issue145Class
+		{
+			[DataMember( Order = 0 )]
+			public int MyProperty1 { get; set; }
+			[DataMember( Order = 2 )]
+			public int MyProperty2 { get; set; }
+		}
+#endif // !NETFX_CORE && !WINDOWS_PHONE && !XAMIOS && !XAMDROID && !UNITY
 	}
 }