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Diffstat (limited to 'csharp/ProtocolBuffers/GeneratedExtension.cs')
-rw-r--r-- | csharp/ProtocolBuffers/GeneratedExtension.cs | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/csharp/ProtocolBuffers/GeneratedExtension.cs b/csharp/ProtocolBuffers/GeneratedExtension.cs new file mode 100644 index 00000000..52d3349b --- /dev/null +++ b/csharp/ProtocolBuffers/GeneratedExtension.cs @@ -0,0 +1,34 @@ +using System; +using System.Collections.Generic; +using System.Text; +using Google.ProtocolBuffers.Descriptors; + +namespace Google.ProtocolBuffers { + + /// <summary> + /// Base class for all generated extensions. + /// </summary> + /// <remarks> + /// The protocol compiler generates a static singleton instance of this + /// class for each extension. For exmaple, imagine a .proto file with: + /// <code> + /// message Foo { + /// extensions 1000 to max + /// } + /// + /// extend Foo { + /// optional int32 bar; + /// } + /// </code> + /// Then MyProto.Foo.Bar has type GeneratedExtension<MyProto.Foo,int>. + /// <para /> + /// In general, users should ignore the details of this type, and + /// simply use the static singletons as parmaeters to the extension accessors + /// in ExtendableMessage and ExtendableBuilder. + /// </remarks> + public class GeneratedExtension<TContainer, TExtension> where TContainer : IMessage<TContainer> { + public FieldDescriptor Descriptor; + + public IMessage MessageDefaultInstance; + } +} |