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| 1 #region Copyright notice and license | |
| 2 // Protocol Buffers - Google's data interchange format | |
| 3 // Copyright 2008 Google Inc. All rights reserved. | |
| 4 // https://developers.google.com/protocol-buffers/ | |
| 5 // | |
| 6 // Redistribution and use in source and binary forms, with or without | |
| 7 // modification, are permitted provided that the following conditions are | |
| 8 // met: | |
| 9 // | |
| 10 // * Redistributions of source code must retain the above copyright | |
| 11 // notice, this list of conditions and the following disclaimer. | |
| 12 // * Redistributions in binary form must reproduce the above | |
| 13 // copyright notice, this list of conditions and the following disclaimer | |
| 14 // in the documentation and/or other materials provided with the | |
| 15 // distribution. | |
| 16 // * Neither the name of Google Inc. nor the names of its | |
| 17 // contributors may be used to endorse or promote products derived from | |
| 18 // this software without specific prior written permission. | |
| 19 // | |
| 20 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 21 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 22 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 23 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 24 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 25 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 26 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 27 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 28 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 29 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 30 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 31 #endregion | |
| 32 | |
| 33 using System; | |
| 34 using System.Collections.Generic; | |
| 35 | |
| 36 namespace Google.Protobuf.Reflection | |
| 37 { | |
| 38 /// <summary> | |
| 39 /// Descriptor for an enum type in a .proto file. | |
| 40 /// </summary> | |
| 41 public sealed class EnumDescriptor : DescriptorBase | |
| 42 { | |
| 43 private readonly EnumDescriptorProto proto; | |
| 44 private readonly MessageDescriptor containingType; | |
| 45 private readonly IList<EnumValueDescriptor> values; | |
| 46 private readonly Type generatedType; | |
| 47 | |
| 48 internal EnumDescriptor(EnumDescriptorProto proto, FileDescriptor file,
MessageDescriptor parent, int index, Type generatedType) | |
| 49 : base(file, file.ComputeFullName(parent, proto.Name), index) | |
| 50 { | |
| 51 this.proto = proto; | |
| 52 this.generatedType = generatedType; | |
| 53 containingType = parent; | |
| 54 | |
| 55 if (proto.Value.Count == 0) | |
| 56 { | |
| 57 // We cannot allow enums with no values because this would mean
there | |
| 58 // would be no valid default value for fields of this type. | |
| 59 throw new DescriptorValidationException(this, "Enums must contai
n at least one value."); | |
| 60 } | |
| 61 | |
| 62 values = DescriptorUtil.ConvertAndMakeReadOnly(proto.Value, | |
| 63 (value, i) => new Enu
mValueDescriptor(value, file, this, i)); | |
| 64 | |
| 65 File.DescriptorPool.AddSymbol(this); | |
| 66 } | |
| 67 | |
| 68 internal EnumDescriptorProto Proto { get { return proto; } } | |
| 69 | |
| 70 /// <summary> | |
| 71 /// The brief name of the descriptor's target. | |
| 72 /// </summary> | |
| 73 public override string Name { get { return proto.Name; } } | |
| 74 | |
| 75 /// <summary> | |
| 76 /// The generated type for this enum, or <c>null</c> if the descriptor d
oes not represent a generated type. | |
| 77 /// </summary> | |
| 78 public Type GeneratedType { get { return generatedType; } } | |
| 79 | |
| 80 /// <value> | |
| 81 /// If this is a nested type, get the outer descriptor, otherwise null. | |
| 82 /// </value> | |
| 83 public MessageDescriptor ContainingType | |
| 84 { | |
| 85 get { return containingType; } | |
| 86 } | |
| 87 | |
| 88 /// <value> | |
| 89 /// An unmodifiable list of defined value descriptors for this enum. | |
| 90 /// </value> | |
| 91 public IList<EnumValueDescriptor> Values | |
| 92 { | |
| 93 get { return values; } | |
| 94 } | |
| 95 | |
| 96 /// <summary> | |
| 97 /// Finds an enum value by number. If multiple enum values have the | |
| 98 /// same number, this returns the first defined value with that number. | |
| 99 /// If there is no value for the given number, this returns <c>null</c>. | |
| 100 /// </summary> | |
| 101 public EnumValueDescriptor FindValueByNumber(int number) | |
| 102 { | |
| 103 return File.DescriptorPool.FindEnumValueByNumber(this, number); | |
| 104 } | |
| 105 | |
| 106 /// <summary> | |
| 107 /// Finds an enum value by name. | |
| 108 /// </summary> | |
| 109 /// <param name="name">The unqualified name of the value (e.g. "FOO").</
param> | |
| 110 /// <returns>The value's descriptor, or null if not found.</returns> | |
| 111 public EnumValueDescriptor FindValueByName(string name) | |
| 112 { | |
| 113 return File.DescriptorPool.FindSymbol<EnumValueDescriptor>(FullName
+ "." + name); | |
| 114 } | |
| 115 } | |
| 116 } | |
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Chromium Code Reviews
Issue 1322483002:
Revert https://codereview.chromium.org/1291903002 (protobuf roll). (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master