1 files changed, 16 insertions, 0 deletions
diff --git a/csharp/src/ProtocolBuffers/Descriptors/FileDescriptor.cs b/csharp/src/ProtocolBuffers/Descriptors/FileDescriptor.cs
index 354e99a3..8a3e26fa 100644
--- a/csharp/src/ProtocolBuffers/Descriptors/FileDescriptor.cs
+++ b/csharp/src/ProtocolBuffers/Descriptors/FileDescriptor.cs
@@ -54,6 +54,22 @@ namespace Google.ProtocolBuffers.Descriptors
         private readonly IList<FileDescriptor> publicDependencies;
         private readonly DescriptorPool pool;
 
+        public enum Syntax
+        {
+            UNKNOWN,
+            PROTO2,
+            PROTO3
+        }
+
+        public Syntax GetSyntax()
+        {
+            if (proto.Syntax == "proto3")
+            {
+                return Syntax.PROTO3;
+            }
+            return Syntax.PROTO2;
+        }
+
         private FileDescriptor(FileDescriptorProto proto, FileDescriptor[] dependencies, DescriptorPool pool, bool allowUnknownDependencies)
         {
             this.pool = pool;