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| 1 #region Copyright notice and license | |
| 2 // Protocol Buffers - Google's data interchange format | |
| 3 // Copyright 2015 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.Collections.Generic; | |
| 34 using System.Collections.ObjectModel; | |
| 35 using Google.Protobuf.Compatibility; | |
| 36 | |
| 37 namespace Google.Protobuf.Reflection | |
| 38 { | |
| 39 /// <summary> | |
| 40 /// Describes a "oneof" field collection in a message type: a set of | |
| 41 /// fields of which at most one can be set in any particular message. | |
| 42 /// </summary> | |
| 43 public sealed class OneofDescriptor : DescriptorBase | |
| 44 { | |
| 45 private readonly OneofDescriptorProto proto; | |
| 46 private MessageDescriptor containingType; | |
| 47 private IList<FieldDescriptor> fields; | |
| 48 private readonly OneofAccessor accessor; | |
| 49 | |
| 50 internal OneofDescriptor(OneofDescriptorProto proto, FileDescriptor file
, MessageDescriptor parent, int index, string clrName) | |
| 51 : base(file, file.ComputeFullName(parent, proto.Name), index) | |
| 52 { | |
| 53 this.proto = proto; | |
| 54 containingType = parent; | |
| 55 | |
| 56 file.DescriptorPool.AddSymbol(this); | |
| 57 accessor = CreateAccessor(clrName); | |
| 58 } | |
| 59 | |
| 60 /// <summary> | |
| 61 /// The brief name of the descriptor's target. | |
| 62 /// </summary> | |
| 63 public override string Name { get { return proto.Name; } } | |
| 64 | |
| 65 /// <summary> | |
| 66 /// Gets the message type containing this oneof. | |
| 67 /// </summary> | |
| 68 /// <value> | |
| 69 /// The message type containing this oneof. | |
| 70 /// </value> | |
| 71 public MessageDescriptor ContainingType | |
| 72 { | |
| 73 get { return containingType; } | |
| 74 } | |
| 75 | |
| 76 /// <summary> | |
| 77 /// Gets the fields within this oneof, in declaration order. | |
| 78 /// </summary> | |
| 79 /// <value> | |
| 80 /// The fields within this oneof, in declaration order. | |
| 81 /// </value> | |
| 82 public IList<FieldDescriptor> Fields { get { return fields; } } | |
| 83 | |
| 84 /// <summary> | |
| 85 /// Gets an accessor for reflective access to the values associated with
the oneof | |
| 86 /// in a particular message. | |
| 87 /// </summary> | |
| 88 /// <value> | |
| 89 /// The accessor used for reflective access, or <c>null</c> if reflectio
n is not | |
| 90 /// supported by this descriptor. | |
| 91 /// </value> | |
| 92 public OneofAccessor Accessor { get { return accessor; } } | |
| 93 | |
| 94 internal void CrossLink() | |
| 95 { | |
| 96 List<FieldDescriptor> fieldCollection = new List<FieldDescriptor>(); | |
| 97 foreach (var field in ContainingType.Fields.InDeclarationOrder()) | |
| 98 { | |
| 99 if (field.ContainingOneof == this) | |
| 100 { | |
| 101 fieldCollection.Add(field); | |
| 102 } | |
| 103 } | |
| 104 fields = new ReadOnlyCollection<FieldDescriptor>(fieldCollection); | |
| 105 } | |
| 106 | |
| 107 private OneofAccessor CreateAccessor(string clrName) | |
| 108 { | |
| 109 if (containingType.GeneratedType == null || clrName == null) | |
| 110 { | |
| 111 return null; | |
| 112 } | |
| 113 var caseProperty = containingType.GeneratedType.GetProperty(clrName
+ "Case"); | |
| 114 if (caseProperty == null) | |
| 115 { | |
| 116 throw new DescriptorValidationException(this, "Property " + clrN
ame + "Case not found in " + containingType.GeneratedType); | |
| 117 } | |
| 118 var clearMethod = containingType.GeneratedType.GetMethod("Clear" + c
lrName); | |
| 119 if (clearMethod == null) | |
| 120 { | |
| 121 throw new DescriptorValidationException(this, "Method Clear" + c
lrName + " not found in " + containingType.GeneratedType); | |
| 122 } | |
| 123 | |
| 124 return new OneofAccessor(caseProperty, clearMethod, this); | |
| 125 } | |
| 126 } | |
| 127 } | |
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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