1 files changed, 130 insertions, 0 deletions
diff --git a/mcs/class/System/System.ComponentModel/AttributeCollection.cs b/mcs/class/System/System.ComponentModel/AttributeCollection.cs
new file mode 100644
index 00000000000..fb8c7937d2a
--- /dev/null
+++ b/mcs/class/System/System.ComponentModel/AttributeCollection.cs
@@ -0,0 +1,130 @@
+//
+// System.ComponentModel.AttributeCollection.cs
+//
+// Authors:
+// 	Rodrigo Moya (rodrigo@ximian.com)
+// 	Gonzalo Paniagua Javier (gonzalo@ximian.com)
+//
+// (C) 2002 Ximian, Inc. (http://www.ximian.com)
+//
+
+using System;
+using System.Collections;
+using System.Reflection;
+
+namespace System.ComponentModel
+{
+	public class AttributeCollection : ICollection, IEnumerable
+	{
+		private ArrayList attrList = new ArrayList ();
+		public static readonly AttributeCollection Empty = new AttributeCollection (null);
+		
+		public AttributeCollection (Attribute[] attributes)
+		{
+			if (attributes != null)
+				for (int i = 0; i < attributes.Length; i++)
+					attrList.Add (attributes[i]);
+		}
+
+		public bool Contains (Attribute attr)
+		{
+			return attrList.Contains (attr);
+		}
+
+		public bool Contains (Attribute [] attributes)
+		{
+			if (attributes == null)
+				return true;
+
+			foreach (Attribute attr in attributes)
+				if (!Contains (attr))
+					return false;
+
+			return true;
+		}
+
+		public void CopyTo (Array array, int index)
+		{
+			attrList.CopyTo (array, index);
+		}
+
+		public IEnumerator GetEnumerator ()
+		{
+			return attrList.GetEnumerator ();
+		}
+
+		public bool Matches (Attribute attr)
+		{
+			foreach (Attribute a in attrList)
+				if (a.Match (attr))
+					return true;
+			return false;
+		}
+
+		public bool Matches (Attribute [] attributes)
+		{
+			foreach (Attribute a in attributes)
+				if (!(Matches (a)))
+					return false;
+			return true;
+		}
+
+		protected Attribute GetDefaultAttribute (Type attributeType)
+		{
+			Attribute attr;
+			BindingFlags bf = BindingFlags.Public | BindingFlags.Static;
+
+			FieldInfo def = attributeType.GetField ("Default", bf);
+			if (def == null) {
+				attr = Activator.CreateInstance (attributeType) as Attribute;
+				if (attr != null && !attr.IsDefaultAttribute ())
+					attr = null;
+			} else {
+				attr = (Attribute) def.GetValue (null);
+			}
+
+			return attr;
+		}
+
+		public bool IsSynchronized {
+			get {
+				return attrList.IsSynchronized;
+			}
+		}
+
+		public object SyncRoot {
+			get {
+				return attrList.SyncRoot;
+			}
+		}
+		
+		public int Count {
+			get {
+				return attrList.Count;
+			}
+		}
+
+		public virtual Attribute this[Type type] {
+			get {
+				Attribute attr = null;
+				foreach (Attribute a in attrList) {
+					if (a.GetType () == type){
+						attr = a;
+						break;
+					}
+				}
+
+				if (attr == null)
+					attr = GetDefaultAttribute (type);
+
+				return attr;
+			}
+		}
+
+		public virtual Attribute this[int index] {
+			get {
+				return (Attribute) attrList [index];
+			}
+		}
+	}
+}