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-rw-r--r--src/mscorlib/src/System/Empty.cs37
1 files changed, 37 insertions, 0 deletions
diff --git a/src/mscorlib/src/System/Empty.cs b/src/mscorlib/src/System/Empty.cs
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+++ b/src/mscorlib/src/System/Empty.cs
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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.
+////////////////////////////////////////////////////////////////////////////////
+// Empty
+// This class represents an empty variant
+////////////////////////////////////////////////////////////////////////////////
+using System.Diagnostics.Contracts;
+namespace System {
+
+ using System;
+ using System.Runtime.Remoting;
+ using System.Runtime.Serialization;
+
+ [Serializable]
+ internal sealed class Empty : ISerializable
+ {
+ private Empty() {
+ }
+
+ public static readonly Empty Value = new Empty();
+
+ public override String ToString()
+ {
+ return String.Empty;
+ }
+
+ [System.Security.SecurityCritical] // auto-generated
+ public void GetObjectData(SerializationInfo info, StreamingContext context) {
+ if (info==null) {
+ throw new ArgumentNullException("info");
+ }
+ Contract.EndContractBlock();
+ UnitySerializationHolder.GetUnitySerializationInfo(info, UnitySerializationHolder.EmptyUnity, null, null);
+ }
+ }
+}