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diff --git a/src/mscorlib/src/System/AttributeUsageAttribute.cs b/src/mscorlib/src/System/AttributeUsageAttribute.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.
+
+/*============================================================
+**
+**
+**
+** Purpose: The class denotes how to specify the usage of an attribute
+**
+**
+===========================================================*/
+namespace System {
+
+ using System.Reflection;
+ /* By default, attributes are inherited and multiple attributes are not allowed */
+[Serializable]
+ [AttributeUsage(AttributeTargets.Class, Inherited = true)]
+[System.Runtime.InteropServices.ComVisible(true)]
+ public sealed class AttributeUsageAttribute : Attribute
+ {
+ internal AttributeTargets m_attributeTarget = AttributeTargets.All; // Defaults to all
+ internal bool m_allowMultiple = false; // Defaults to false
+ internal bool m_inherited = true; // Defaults to true
+
+ internal static AttributeUsageAttribute Default = new AttributeUsageAttribute(AttributeTargets.All);
+
+ //Constructors
+ public AttributeUsageAttribute(AttributeTargets validOn) {
+ m_attributeTarget = validOn;
+ }
+ internal AttributeUsageAttribute(AttributeTargets validOn, bool allowMultiple, bool inherited) {
+ m_attributeTarget = validOn;
+ m_allowMultiple = allowMultiple;
+ m_inherited = inherited;
+ }
+
+
+ //Properties
+ public AttributeTargets ValidOn
+ {
+ get{ return m_attributeTarget; }
+ }
+
+ public bool AllowMultiple
+ {
+ get { return m_allowMultiple; }
+ set { m_allowMultiple = value; }
+ }
+
+ public bool Inherited
+ {
+ get { return m_inherited; }
+ set { m_inherited = value; }
+ }
+ }
+}