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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System;
using System.Collections;
using System.Collections.Generic;
#if ES_BUILD_STANDALONE
namespace Microsoft.Diagnostics.Tracing
#else
namespace System.Diagnostics.Tracing
#endif
{
internal sealed class EnumerableTypeInfo : TraceLoggingTypeInfo
{
private readonly TraceLoggingTypeInfo elementInfo;
public EnumerableTypeInfo(Type type, TraceLoggingTypeInfo elementInfo)
: base(type)
{
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, PropertyValue value)
{
var bookmark = collector.BeginBufferedArray();
var count = 0;
IEnumerable enumerable = (IEnumerable)value.ReferenceValue;
if (enumerable != null)
{
foreach (var element in enumerable)
{
this.elementInfo.WriteData(collector, elementInfo.PropertyValueFactory(element));
count++;
}
}
collector.EndBufferedArray(bookmark, count);
}
public override object GetData(object value)
{
var iterType = (IEnumerable)value;
List<object> serializedEnumerable = new List<object>();
foreach (var element in iterType)
{
serializedEnumerable.Add(elementInfo.GetData(element));
}
return serializedEnumerable.ToArray();
}
}
}
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