diff options
Diffstat (limited to 'src/mscorlib/src/System/Diagnostics/Eventing/TraceLogging/EnumerableTypeInfo.cs')
-rw-r--r-- | src/mscorlib/src/System/Diagnostics/Eventing/TraceLogging/EnumerableTypeInfo.cs | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/src/mscorlib/src/System/Diagnostics/Eventing/TraceLogging/EnumerableTypeInfo.cs b/src/mscorlib/src/System/Diagnostics/Eventing/TraceLogging/EnumerableTypeInfo.cs new file mode 100644 index 0000000000..5ff6c07889 --- /dev/null +++ b/src/mscorlib/src/System/Diagnostics/Eventing/TraceLogging/EnumerableTypeInfo.cs @@ -0,0 +1,64 @@ +// 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(); + } + } +} |