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// Copyright (c) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
using System;
using System.Collections.Generic;
#if ES_BUILD_STANDALONE
namespace Microsoft.Diagnostics.Tracing
#else
namespace System.Diagnostics.Tracing
#endif
{
internal sealed class EnumerableTypeInfo<IterableType, ElementType>
: TraceLoggingTypeInfo<IterableType>
where IterableType : IEnumerable<ElementType>
{
private readonly TraceLoggingTypeInfo<ElementType> elementInfo;
public EnumerableTypeInfo(TraceLoggingTypeInfo<ElementType> elementInfo)
{
this.elementInfo = elementInfo;
}
public override void WriteMetadata(
TraceLoggingMetadataCollector collector,
string name,
EventFieldFormat format)
{
collector.BeginBufferedArray();
this.elementInfo.WriteMetadata(collector, name, format);
collector.EndBufferedArray();
}
public override void WriteData(
TraceLoggingDataCollector collector,
ref IterableType value)
{
var bookmark = collector.BeginBufferedArray();
var count = 0;
if (value != null)
{
foreach (var element in value)
{
var el = element;
this.elementInfo.WriteData(collector, ref el);
count++;
}
}
collector.EndBufferedArray(bookmark, count);
}
public override object GetData(object value)
{
var iterType = (IterableType)value;
List<object> serializedEnumerable = new List<object>();
foreach (var element in iterType)
{
serializedEnumerable.Add(elementInfo.GetData(element));
}
return serializedEnumerable.ToArray();
}
}
}
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