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// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
// http://github.com/jskeet/dotnet-protobufs/
// Original C++/Java/Python code:
// http://code.google.com/p/protobuf/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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;
}
}
}
}
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