[8295] | 1 | // Protocol Buffers - Google's data interchange format
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| 2 | // Copyright 2008 Google Inc. All rights reserved.
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| 3 | // http://github.com/jskeet/dotnet-protobufs/
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| 4 | // Original C++/Java/Python code:
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| 5 | // http://code.google.com/p/protobuf/
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| 6 | //
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| 7 | // Redistribution and use in source and binary forms, with or without
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| 8 | // modification, are permitted provided that the following conditions are
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| 9 | // met:
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| 10 | //
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| 11 | // * Redistributions of source code must retain the above copyright
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| 12 | // notice, this list of conditions and the following disclaimer.
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| 13 | // * Redistributions in binary form must reproduce the above
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| 14 | // copyright notice, this list of conditions and the following disclaimer
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| 15 | // in the documentation and/or other materials provided with the
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| 16 | // distribution.
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| 17 | // * Neither the name of Google Inc. nor the names of its
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| 18 | // contributors may be used to endorse or promote products derived from
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| 19 | // this software without specific prior written permission.
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| 20 | //
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| 21 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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| 22 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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| 23 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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| 24 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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| 25 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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| 26 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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| 27 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 28 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 29 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 30 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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| 31 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 32 | using System.Collections.Generic;
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| 33 | using Google.ProtocolBuffers.DescriptorProtos;
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| 34 |
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| 35 | namespace Google.ProtocolBuffers.Descriptors
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| 36 | {
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| 37 | /// <summary>
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| 38 | /// Descriptor for an enum type in a .proto file.
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| 39 | /// </summary>
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| 40 | public sealed class EnumDescriptor : IndexedDescriptorBase<EnumDescriptorProto, EnumOptions>,
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| 41 | IEnumLiteMap<EnumValueDescriptor>
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| 42 | {
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| 43 | private readonly MessageDescriptor containingType;
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| 44 | private readonly IList<EnumValueDescriptor> values;
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| 45 |
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| 46 | internal EnumDescriptor(EnumDescriptorProto proto, FileDescriptor file, MessageDescriptor parent, int index)
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| 47 | : base(proto, file, ComputeFullName(file, parent, proto.Name), index)
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| 48 | {
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| 49 | containingType = parent;
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| 50 |
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| 51 | if (proto.ValueCount == 0)
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| 52 | {
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| 53 | // We cannot allow enums with no values because this would mean there
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| 54 | // would be no valid default value for fields of this type.
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| 55 | throw new DescriptorValidationException(this, "Enums must contain at least one value.");
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| 56 | }
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| 57 |
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| 58 | values = DescriptorUtil.ConvertAndMakeReadOnly(proto.ValueList,
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| 59 | (value, i) => new EnumValueDescriptor(value, file, this, i));
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| 60 |
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| 61 | File.DescriptorPool.AddSymbol(this);
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| 62 | }
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| 63 |
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| 64 | /// <value>
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| 65 | /// If this is a nested type, get the outer descriptor, otherwise null.
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| 66 | /// </value>
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| 67 | public MessageDescriptor ContainingType
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| 68 | {
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| 69 | get { return containingType; }
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| 70 | }
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| 71 |
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| 72 | /// <value>
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| 73 | /// An unmodifiable list of defined value descriptors for this enum.
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| 74 | /// </value>
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| 75 | public IList<EnumValueDescriptor> Values
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| 76 | {
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| 77 | get { return values; }
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| 78 | }
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| 79 |
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| 80 | /// <summary>
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| 81 | /// Logic moved from FieldSet to continue current behavior
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| 82 | /// </summary>
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| 83 | public bool IsValidValue(IEnumLite value)
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| 84 | {
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| 85 | return value is EnumValueDescriptor && ((EnumValueDescriptor) value).EnumDescriptor == this;
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| 86 | }
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| 87 |
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| 88 | /// <summary>
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| 89 | /// Finds an enum value by number. If multiple enum values have the
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| 90 | /// same number, this returns the first defined value with that number.
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| 91 | /// </summary>
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| 92 | public EnumValueDescriptor FindValueByNumber(int number)
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| 93 | {
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| 94 | return File.DescriptorPool.FindEnumValueByNumber(this, number);
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| 95 | }
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| 96 |
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| 97 | IEnumLite IEnumLiteMap.FindValueByNumber(int number)
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| 98 | {
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| 99 | return FindValueByNumber(number);
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| 100 | }
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| 101 |
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| 102 | IEnumLite IEnumLiteMap.FindValueByName(string name)
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| 103 | {
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| 104 | return FindValueByName(name);
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| 105 | }
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| 106 |
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| 107 | /// <summary>
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| 108 | /// Finds an enum value by name.
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| 109 | /// </summary>
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| 110 | /// <param name="name">The unqualified name of the value (e.g. "FOO").</param>
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| 111 | /// <returns>The value's descriptor, or null if not found.</returns>
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| 112 | public EnumValueDescriptor FindValueByName(string name)
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| 113 | {
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| 114 | return File.DescriptorPool.FindSymbol<EnumValueDescriptor>(FullName + "." + name);
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| 115 | }
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| 116 |
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| 117 | internal override void ReplaceProto(EnumDescriptorProto newProto)
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| 118 | {
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| 119 | base.ReplaceProto(newProto);
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| 120 | for (int i = 0; i < values.Count; i++)
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| 121 | {
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| 122 | values[i].ReplaceProto(newProto.GetValue(i));
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| 123 | }
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| 124 | }
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| 125 | }
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| 126 | } |
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