Squashed 'third_party/protobuf/' content from commit e35e248
Change-Id: I6cbe123d09fe50fdcad0e51466665daeee7433c7
git-subtree-dir: third_party/protobuf
git-subtree-split: e35e24800fb8d694bdeea5fd63dc7d1b14d68723
diff --git a/csharp/src/Google.Protobuf/Reflection/EnumDescriptor.cs b/csharp/src/Google.Protobuf/Reflection/EnumDescriptor.cs
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+++ b/csharp/src/Google.Protobuf/Reflection/EnumDescriptor.cs
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+#region Copyright notice and license
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc. All rights reserved.
+// https://developers.google.com/protocol-buffers/
+//
+// 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.
+#endregion
+
+using System;
+using System.Collections.Generic;
+
+namespace Google.Protobuf.Reflection
+{
+ /// <summary>
+ /// Descriptor for an enum type in a .proto file.
+ /// </summary>
+ public sealed class EnumDescriptor : DescriptorBase
+ {
+ private readonly EnumDescriptorProto proto;
+ private readonly MessageDescriptor containingType;
+ private readonly IList<EnumValueDescriptor> values;
+ private readonly Type clrType;
+
+ internal EnumDescriptor(EnumDescriptorProto proto, FileDescriptor file, MessageDescriptor parent, int index, Type clrType)
+ : base(file, file.ComputeFullName(parent, proto.Name), index)
+ {
+ this.proto = proto;
+ this.clrType = clrType;
+ containingType = parent;
+
+ if (proto.Value.Count == 0)
+ {
+ // We cannot allow enums with no values because this would mean there
+ // would be no valid default value for fields of this type.
+ throw new DescriptorValidationException(this, "Enums must contain at least one value.");
+ }
+
+ values = DescriptorUtil.ConvertAndMakeReadOnly(proto.Value,
+ (value, i) => new EnumValueDescriptor(value, file, this, i));
+
+ File.DescriptorPool.AddSymbol(this);
+ }
+
+ internal EnumDescriptorProto Proto { get { return proto; } }
+
+ /// <summary>
+ /// The brief name of the descriptor's target.
+ /// </summary>
+ public override string Name { get { return proto.Name; } }
+
+ /// <summary>
+ /// The CLR type for this enum. For generated code, this will be a CLR enum type.
+ /// </summary>
+ public Type ClrType { get { return clrType; } }
+
+ /// <value>
+ /// If this is a nested type, get the outer descriptor, otherwise null.
+ /// </value>
+ public MessageDescriptor ContainingType
+ {
+ get { return containingType; }
+ }
+
+ /// <value>
+ /// An unmodifiable list of defined value descriptors for this enum.
+ /// </value>
+ public IList<EnumValueDescriptor> Values
+ {
+ get { return values; }
+ }
+
+ /// <summary>
+ /// Finds an enum value by number. If multiple enum values have the
+ /// same number, this returns the first defined value with that number.
+ /// If there is no value for the given number, this returns <c>null</c>.
+ /// </summary>
+ public EnumValueDescriptor FindValueByNumber(int number)
+ {
+ return File.DescriptorPool.FindEnumValueByNumber(this, number);
+ }
+
+ /// <summary>
+ /// Finds an enum value by name.
+ /// </summary>
+ /// <param name="name">The unqualified name of the value (e.g. "FOO").</param>
+ /// <returns>The value's descriptor, or null if not found.</returns>
+ public EnumValueDescriptor FindValueByName(string name)
+ {
+ return File.DescriptorPool.FindSymbol<EnumValueDescriptor>(FullName + "." + name);
+ }
+ }
+}
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