diff options
Diffstat (limited to 'src/mscorlib/src/System/Empty.cs')
-rw-r--r-- | src/mscorlib/src/System/Empty.cs | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/src/mscorlib/src/System/Empty.cs b/src/mscorlib/src/System/Empty.cs new file mode 100644 index 0000000000..f7e7486014 --- /dev/null +++ b/src/mscorlib/src/System/Empty.cs @@ -0,0 +1,37 @@ +// 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); + } + } +} |