Implement reflection properly for fields.

- FieldAccessorTable is now non-generic
- We don't have a static field per message type in the umbrella class. (Message descriptors are accessed via the file descriptor.)
- Removed the "descriptor assigner" complication from the descriptor fixup; without extensions, we don't need it
- MapField implements IDictionary (more tests would be good...)
- RepeatedField implements IList (more tests would be good)
- Use expression trees to build accessors. (Will need to test this on various platforms... probably need a fallback strategy just using reflection directly.)
- Added FieldDescriptor.IsMap
- Added tests for reflection with generated messages

Changes to generated code coming in next commit.

1 files changed, 5 insertions, 0 deletions

diff --git a/csharp/src/ProtocolBuffers/Descriptors/FieldDescriptor.cs b/csharp/src/ProtocolBuffers/Descriptors/FieldDescriptor.cs
index 2f2c5806..3b36a280 100644
--- a/csharp/src/ProtocolBuffers/Descriptors/FieldDescriptor.cs
+++ b/csharp/src/ProtocolBuffers/Descriptors/FieldDescriptor.cs
@@ -131,6 +131,11 @@ namespace Google.Protobuf.Descriptors
             get { return Proto.Label == FieldDescriptorProto.Types.Label.LABEL_REPEATED; }

         }

 

+        public bool IsMap

+        {

+            get { return fieldType == FieldType.Message && messageType.Options != null && messageType.Options.MapEntry; }

+        }

+

         public bool IsPacked

         {

             get { return Proto.Options.Packed; }