新增fastList、注释完善

source/src/Utils/EqualityComparer.ts

@@ -0,0 +1,17 @@
+module es {
+    export class EqualityComparer<T> implements IEqualityComparer {
+        public static default<T>(){
+            return new EqualityComparer<T>();
+        }
+
+        protected constructor(){ }
+
+        public equals(x: T, y: T): boolean{
+            if (typeof x["equals"] == 'function'){
+                return x["equals"](y);
+            } else {
+                return x === y;
+            }
+        }
+    }
+}

source/src/Utils/IComparer.ts

@@ -0,0 +1,5 @@
+module es {
+    export interface IComparer<T>{
+        compare(x: T, y: T): number;
+    }
+}

source/src/Utils/IEqualityComparer.ts

@@ -0,0 +1,5 @@
+module es {
+    export interface IEqualityComparer {
+        equals(x: any, y: any): boolean;
+    }
+}

source/src/Utils/IEquatable.ts

@@ -0,0 +1,8 @@
+module es {
+    /**
+     * 实现该接口用于判定两个对象是否相等的快速接口
+     */
+    export interface IEquatable<T> {
+        equals(other: T): boolean;
+    }
+}

source/src/Utils/Pair.ts

@@ -2,7 +2,7 @@ module es {
     /**
      * 用于管理一对对象的简单DTO
      */
-    export class Pair<T> {
+    export class Pair<T> implements IEquatable<Pair<T>> {
         public first: T;
         public second: T;
 
@@ -15,7 +15,8 @@ module es {
             this.first = this.second = null;
         }
 
-        public equals(other: Pair<T>) {
+        public equals(other: Pair<T>): boolean {
+            // 这两种方法在功能上应该是等价的
             return this.first == other.first && this.second == other.second;
         }
     }