First cut at new layout

1 files changed, 57 insertions, 0 deletions

diff --git a/src/ProtocolBuffers/GeneratedRepeatExtension.cs b/src/ProtocolBuffers/GeneratedRepeatExtension.cs
new file mode 100644
index 00000000..ae711bd2
--- /dev/null
+++ b/src/ProtocolBuffers/GeneratedRepeatExtension.cs
@@ -0,0 +1,57 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.
+// http://code.google.com/p/protobuf/
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+using System;
+using System.Collections.Generic;
+using Google.ProtocolBuffers.Descriptors;
+using System.Collections;
+
+namespace Google.ProtocolBuffers {
+  /// <summary>
+  /// Class used to represent repeat extensions in generated classes.
+  /// </summary>
+  public sealed class GeneratedRepeatExtension<TExtensionElement> : GeneratedExtensionBase<IList<TExtensionElement>> {
+    private GeneratedRepeatExtension(FieldDescriptor field) : base(field, typeof(TExtensionElement)) {
+    }
+
+    public static GeneratedExtensionBase<IList<TExtensionElement>> CreateInstance(FieldDescriptor descriptor) {
+      if (!descriptor.IsRepeated) {
+        throw new ArgumentException("Must call GeneratedRepeatExtension.CreateInstance() for repeated types.");
+      }
+      return new GeneratedRepeatExtension<TExtensionElement>(descriptor);
+    }
+
+    /// <summary>
+    /// Converts the list to the right type.
+    /// TODO(jonskeet): Check where this is used, and whether we need to convert
+    /// for primitive types.
+    /// </summary>
+    /// <param name="value"></param>
+    /// <returns></returns>
+    public override object FromReflectionType(object value) {
+      if (Descriptor.MappedType == MappedType.Message ||
+          Descriptor.MappedType == MappedType.Enum) {
+        // Must convert the whole list.
+        List<TExtensionElement> result = new List<TExtensionElement>();
+        foreach (object element in (IEnumerable) value) {
+          result.Add((TExtensionElement) SingularFromReflectionType(element));
+        }
+        return result;
+      } else {
+        return value;
+      }
+    }
+  }
+}