refactor: kill MapWrapper

modules/@angular/core/test/testing_internal_spec.ts

@@ -8,8 +8,6 @@
 
 import {SpyObject} from '@angular/core/testing/testing_internal';
 
-import {MapWrapper} from '../../platform-browser/src/facade/collection';
-
 class TestObj {
   prop: any;
   constructor(prop: any) { this.prop = prop; }
@@ -25,9 +23,9 @@ export function main() {
   describe('testing', () => {
     describe('equality', () => {
       it('should structurally compare objects', () => {
-        var expected = new TestObj(new TestObj({'one': [1, 2]}));
-        var actual = new TestObj(new TestObj({'one': [1, 2]}));
-        var falseActual = new TestObj(new TestObj({'one': [1, 3]}));
+        const expected = new TestObj(new TestObj({'one': [1, 2]}));
+        const actual = new TestObj(new TestObj({'one': [1, 2]}));
+        const falseActual = new TestObj(new TestObj({'one': [1, 3]}));
 
         expect(actual).toEqual(expected);
         expect(falseActual).not.toEqual(expected);
@@ -36,7 +34,8 @@ export function main() {
 
     describe('toEqual for Maps', () => {
       it('should detect equality for same reference', () => {
-        var m1 = MapWrapper.createFromStringMap({'a': 1});
+        const m1: Map<string, number> = new Map();
+        m1.set('a', 1);
         expect(m1).toEqual(m1);
       });
 
@@ -49,15 +48,18 @@ export function main() {
       });
 
       it('should detect missing entries', () => {
-        expect(MapWrapper.createFromStringMap({
-          'a': 1
-        })).not.toEqual(MapWrapper.createFromStringMap({}));
+        const m1: Map<string, number> = new Map();
+        m1.set('a', 1);
+        const m2: Map<string, number> = new Map();
+        expect(m1).not.toEqual(m2);
       });
 
       it('should detect different values', () => {
-        expect(MapWrapper.createFromStringMap({
-          'a': 1
-        })).not.toEqual(MapWrapper.createFromStringMap({'a': 2}));
+        const m1: Map<string, number> = new Map();
+        m1.set('a', 1);
+        const m2: Map<string, number> = new Map();
+        m2.set('a', 2);
+        expect(m1).not.toEqual(m2);
       });
 
       it('should detect additional entries', () => {

modules/@angular/facade/src/collection.ts

@@ -8,16 +8,6 @@
 
 import {getSymbolIterator, isJsObject, isPresent} from './lang';
 
-export class MapWrapper {
-  static createFromStringMap<T>(stringMap: {[key: string]: T}): Map<string, T> {
-    const result = new Map<string, T>();
-    for (let prop in stringMap) {
-      result.set(prop, stringMap[prop]);
-    }
-    return result;
-  }
-}
-
 /**
  * Wraps Javascript Objects
  */