1 files changed, 21 insertions, 0 deletions
diff --git a/src/mscorlib/shared/System/Runtime/CompilerServices/IsByRefLikeAttribute.cs b/src/mscorlib/shared/System/Runtime/CompilerServices/IsByRefLikeAttribute.cs
new file mode 100644
index 0000000000..90e49d2a42
--- /dev/null
+++ b/src/mscorlib/shared/System/Runtime/CompilerServices/IsByRefLikeAttribute.cs
@@ -0,0 +1,21 @@
+// 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.ComponentModel;
+
+namespace System.Runtime.CompilerServices
+{
+    /// <summary>
+    /// Reserved to be used by the compiler for tracking metadata.
+    /// This attribute should not be used by developers in source code.
+    /// </summary>
+    [EditorBrowsable(EditorBrowsableState.Never)]
+    [AttributeUsage(AttributeTargets.Struct)]
+    public sealed class IsByRefLikeAttribute : Attribute
+    {
+        public IsByRefLikeAttribute()
+        {
+        }
+    }
+}