corlib and JIT updates

src/DNA/corlib/System.Collections.Generic/Comparer.cs

@@ -24,7 +24,7 @@
 using System.Collections;
 
 namespace System.Collections.Generic {
-	public abstract class Comparer<T> : IComparer<T>,IComparer {
+	public abstract class Comparer<T> : IComparer<T>, IComparer {
 
 		private sealed class DefaultComparer : Comparer<T> {
 
@@ -45,7 +45,6 @@ public override int Compare(T x, T y) {
 				}
 				throw new ArgumentException("Does not implement IComparable");
 			}
-
 		}
 
 		private sealed class DefaultComparerValueType : Comparer<T> {
@@ -61,7 +60,21 @@ public override int Compare(T x, T y) {
 				}
 				throw new ArgumentException("Does not implement IComparable");
 			}
+		}
+
+		private sealed class ComparisonComparer : Comparer<T> {
+			private readonly Comparison<T> comparison;
+			public ComparisonComparer(Comparison<T> comparison) {
+				this.comparison = comparison;
+			}
+			public override int Compare(T x, T y) {
+				return comparison(x, y);
+			}
+		}
 
+		public static Comparer<T> Create(Comparison<T> comparison) {
+			if (comparison == null) throw new ArgumentNullException("comparison");
+			return new ComparisonComparer(comparison);
 		}
 
 		static Comparer() {

src/DNA/corlib/System.Collections.Generic/IReadOnlyCollection.cs

@@ -0,0 +1,33 @@
+//
+// IReadOnlyCollection.cs
+//
+// Authors:
+//	Marek Safar  <marek.safar@gmail.com>
+//
+// Copyright (C) 2012 Xamarin, Inc (http://www.xamarin.com)
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+namespace System.Collections.Generic {
+    public interface IReadOnlyCollection<T> : IEnumerable<T> {
+        int Count { get; }
+    }
+}

src/DNA/corlib/System.Collections.Generic/List.cs

@@ -27,7 +27,7 @@ namespace System_.Collections.Generic {
 #else
 namespace System.Collections.Generic {
 #endif
-	public class List<T> : IList<T>, ICollection<T>, IEnumerable<T>, IList, ICollection, IEnumerable {
+	public class List<T> : IList<T>, ICollection<T>, IEnumerable<T>, IList, ICollection, IEnumerable, IReadOnlyCollection<T> {
 
 		public struct Enumerator : IEnumerator<T>, IDisposable {
 
@@ -95,6 +95,10 @@ public List(IEnumerable<T> collection) {
 			}
 		}
 
+		public void TrimExcess() {
+			// does nothing
+		}
+
 		private void EnsureSpace(int space) {
 			if (this.size + space > this.items.Length) {
 				Array.Resize<T>(ref this.items, Math.Max(this.items.Length << 1, 4));
@@ -128,6 +132,19 @@ public void Add(T item) {
 			this.items[this.size++] = item;
 		}
 
+		public void AddRange(IEnumerable<T> collection) {
+			ICollection<T> iCol = collection as ICollection<T>;
+			if (iCol != null) {
+				this.EnsureSpace(iCol.Count);
+				iCol.CopyTo(this.items, this.size);
+				this.size += iCol.Count;
+			} else {
+				foreach (T t in collection) {
+					Add (t);
+				}
+			}
+		}
+
 		public int Count {
 			get {
 				return this.size;
@@ -158,6 +175,16 @@ public T this[int index] {
 			}
 		}
 
+		public List<T> FindAll(Predicate<T> match) {
+			List<T> results = new List<T>();
+			for (int i = 0; i < this.size; i++) {
+				if (match(this.items[i])) {
+					results.Add(this.items[i]);
+				}
+			}
+			return results;
+		}
+
 		public Enumerator GetEnumerator() {
 			return new Enumerator(this);
 		}
@@ -184,6 +211,22 @@ public void InsertRange(int index, IEnumerable<T> collection) {
 			}
 		}
 
+		// public void Sort() {
+		// 	Array.Sort(this.items, 0, this.size);
+		// }
+
+		public void Sort(Comparison<T> comparison) {
+			Array.Sort(this.items, 0, this.size, comparison);
+		}
+
+		public void Sort(IComparer<T> comparer) {
+			Array.Sort(this.items, 0, this.size, comparer);
+		}
+
+		public void Sort(int index, int count, IComparer<T> comparer) {
+			Array.Sort(this.items, index, count, comparer);
+		}
+
 		public T[] ToArray() {
 			T[] array = new T[this.size];
 			Array.Copy(this.items, array, this.size);