Deconstruct added to IndexedItem

Author: andrewvk

CodeJam.Main.Tests/Collections/Enumerable/EnumerableExtensionTests.With.cs

@@ -18,8 +18,8 @@ public void IndexTest()
 			for (var n = 1; n < 10; n++)
 			{
 				var list = Enumerable.Range(0, n).WithIndex().ToArray();
-				foreach (var value in list)
-					Assert.AreEqual(value.Item, value.Index, "#Index");
+				foreach (var (index, item) in list)
+					Assert.AreEqual(item, index, "#Index");
 
 				Assert.IsTrue(list[0].IsFirst, "#IsFirst");
 				Assert.IsTrue(list.Last().IsLast, "#IsLast");

CodeJam.Main/Collections/Enumerable/IndexedItem.cs

@@ -59,6 +59,36 @@ public IndexedItem(T item, int index, bool isFirst, bool isLast) : this()
 			IsLast = isLast;
 		}
 
+		/// <summary>
+		/// Deconstructs instance.
+		/// </summary>
+		public void Deconstruct(out int index, out T item)
+		{
+			index = Index;
+			item = Item;
+		}
+
+		/// <summary>
+		/// Deconstructs instance.
+		/// </summary>
+		public void Deconstruct(out int index, out T item, out bool isFirst)
+		{
+			index = Index;
+			item = Item;
+			isFirst = IsFirst;
+		}
+
+		/// <summary>
+		/// Deconstructs instance.
+		/// </summary>
+		public void Deconstruct(out int index, out T item, out bool isFirst, out bool isLast)
+		{
+			index = Index;
+			item = Item;
+			isFirst = IsFirst;
+			isLast = IsLast;
+		}
+
 		#region Equality members
 		/// <summary>Indicates whether the current object is equal to another object of the same type.</summary>
 		/// <returns>