1 files changed, 33 insertions, 0 deletions
diff --git a/src/mscorlib/shared/System/Runtime/CompilerServices/ReferenceAssemblyAttribute.cs b/src/mscorlib/shared/System/Runtime/CompilerServices/ReferenceAssemblyAttribute.cs
new file mode 100644
index 0000000000..6e307e72af
--- /dev/null
+++ b/src/mscorlib/shared/System/Runtime/CompilerServices/ReferenceAssemblyAttribute.cs
@@ -0,0 +1,33 @@
+// 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.
+
+/*============================================================
+**
+** Attribute: ReferenceAssemblyAttribute
+**
+** Purpose: Identifies an assembly as being a "reference 
+**    assembly", meaning it contains public surface area but
+**    no usable implementation.  Reference assemblies 
+**    should be loadable for introspection, but not execution.
+**
+============================================================*/
+
+namespace System.Runtime.CompilerServices
+{
+    [Serializable]
+    [AttributeUsage(AttributeTargets.Assembly, AllowMultiple = false)]
+    public sealed class ReferenceAssemblyAttribute : Attribute
+    {
+        public ReferenceAssemblyAttribute()
+        {
+        }
+
+        public ReferenceAssemblyAttribute(String description)
+        {
+            Description = description;
+        }
+
+        public String Description { get; }
+    }
+}