Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/mscorlib/system/attributeusageattribute.cs

@@ -0,0 +1,59 @@
+// ==++==
+// 
+//   Copyright (c) Microsoft Corporation.  All rights reserved.
+// 
+// ==--==
+/*============================================================
+**
+** Class:  AttributeUsageAttribute
+**
+**
+** 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; }
+        }
+    }
+}