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-rw-r--r--csharp/src/ProtocolBuffers/FieldAccess/SingleEnumAccessor.cs75
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diff --git a/csharp/src/ProtocolBuffers/FieldAccess/SingleEnumAccessor.cs b/csharp/src/ProtocolBuffers/FieldAccess/SingleEnumAccessor.cs
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--- a/csharp/src/ProtocolBuffers/FieldAccess/SingleEnumAccessor.cs
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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 Google.ProtocolBuffers.Descriptors;
-
-namespace Google.ProtocolBuffers.FieldAccess
-{
- /// <summary>
- /// Accessor for fields representing a non-repeated enum value.
- /// </summary>
- internal sealed class SingleEnumAccessor<TMessage, TBuilder> : SinglePrimitiveAccessor<TMessage, TBuilder>
- where TMessage : IMessage<TMessage, TBuilder>
- where TBuilder : IBuilder<TMessage, TBuilder>
- {
- private readonly EnumDescriptor enumDescriptor;
-
- internal SingleEnumAccessor(FieldDescriptor field, string name, string containingOneofName, bool supportFieldPresence)
- : base(field, name, containingOneofName, supportFieldPresence)
- {
- enumDescriptor = field.EnumType;
- }
-
- /// <summary>
- /// Returns an EnumValueDescriptor representing the value in the builder.
- /// Note that if an enum has multiple values for the same number, the descriptor
- /// for the first value with that number will be returned.
- /// </summary>
- public override object GetValue(TMessage message)
- {
- // Note: This relies on the fact that the CLR allows unboxing from an enum to
- // its underlying value
- int rawValue = (int) base.GetValue(message);
- return enumDescriptor.FindValueByNumber(rawValue);
- }
-
- /// <summary>
- /// Sets the value as an enum (via an int) in the builder,
- /// from an EnumValueDescriptor parameter.
- /// </summary>
- public override void SetValue(TBuilder builder, object value)
- {
- ThrowHelper.ThrowIfNull(value, "value");
- EnumValueDescriptor valueDescriptor = (EnumValueDescriptor) value;
- base.SetValue(builder, valueDescriptor.Number);
- }
- }
-} \ No newline at end of file