1 files changed, 33 insertions, 0 deletions
diff --git a/src/mscorlib/shared/System/Resources/NeutralResourcesLanguageAttribute.cs b/src/mscorlib/shared/System/Resources/NeutralResourcesLanguageAttribute.cs
new file mode 100644
index 0000000000..495c5205b2
--- /dev/null
+++ b/src/mscorlib/shared/System/Resources/NeutralResourcesLanguageAttribute.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.
+
+namespace System.Resources
+{
+    [AttributeUsage(AttributeTargets.Assembly, AllowMultiple = false)]
+    public sealed class NeutralResourcesLanguageAttribute : Attribute
+    {
+        public NeutralResourcesLanguageAttribute(string cultureName)
+        {
+            if (cultureName == null)
+                throw new ArgumentNullException(nameof(cultureName));
+
+            CultureName = cultureName;
+            Location = UltimateResourceFallbackLocation.MainAssembly;
+        }
+
+        public NeutralResourcesLanguageAttribute(string cultureName, UltimateResourceFallbackLocation location)
+        {
+            if (cultureName == null)
+                throw new ArgumentNullException(nameof(cultureName));
+            if (!Enum.IsDefined(typeof(UltimateResourceFallbackLocation), location))
+                throw new ArgumentException(SR.Format(SR.Arg_InvalidNeutralResourcesLanguage_FallbackLoc, location));
+
+            CultureName = cultureName;
+            Location = location;
+        }
+
+        public string CultureName { get; }
+        public UltimateResourceFallbackLocation Location { get; }
+    }
+}