43 lines
1.6 KiB
C#
43 lines
1.6 KiB
C#
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using System;
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using System.Collections.Generic;
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using Google.ProtocolBuffers.Descriptors;
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using System.Collections;
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namespace Google.ProtocolBuffers {
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/// <summary>
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/// Class used to represent repeat extensions in generated classes.
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/// </summary>
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public class GeneratedRepeatExtension<TContainer, TExtensionElement> : GeneratedExtensionBase<TContainer, IList<TExtensionElement>> {
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private GeneratedRepeatExtension(FieldDescriptor field) : base(field) {
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}
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public static GeneratedExtensionBase<TContainer, IList<TExtensionElement>> CreateInstance(FieldDescriptor descriptor) {
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if (descriptor.IsRepeated) {
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throw new ArgumentException("Must call GeneratedRepeatExtension.CreateInstance() for repeated types.");
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}
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return new GeneratedRepeatExtension<TContainer, TExtensionElement>(descriptor);
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}
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/// <summary>
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/// Converts the list to the right type.
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/// TODO(jonskeet): Check where this is used, and whether we need to convert
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/// for primitive types.
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/// </summary>
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/// <param name="value"></param>
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/// <returns></returns>
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public override object FromReflectionType(object value) {
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if (Descriptor.MappedType == MappedType.Message ||
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Descriptor.MappedType == MappedType.Enum) {
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// Must convert the whole list.
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List<TExtensionElement> result = new List<TExtensionElement>();
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foreach (object element in (IEnumerable) value) {
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((IList) result).Add(SingularFromReflectionType(element));
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}
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return result;
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} else {
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return value;
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}
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}
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}
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}
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