feat(change_detection): add benchmarks

modules/benchmarks/pubspec.yaml

@@ -8,3 +8,5 @@ dependencies:
     path: ../di
   core:
     path: ../core
+  change_detection:
+    path: ../change_detection

modules/benchmarks/src/change_detection/benchmark.dart

@@ -0,0 +1,11 @@
+library benchmark;
+
+import './change_detection_benchmark.dart' as cdb;
+import 'dart:js' as js;
+
+main () {
+  js.context['benchmarkSteps'].add(new js.JsObject.jsify({
+      "name": "Change Detection",
+      "fn": new js.JsFunction.withThis((_) => cdb.run())
+  }));
+}

modules/benchmarks/src/change_detection/benchmark.es5

@@ -0,0 +1,3 @@
+System.import('benchmarks/change_detection/change_detection_benchmark').then(function (bm) {
+  window.benchmarkSteps.push({name: 'ChangeDetection', fn: bm.run});
+}, console.log.bind(console));

modules/benchmarks/src/change_detection/bp.conf.es5

@@ -0,0 +1,11 @@
+module.exports = function(config) {
+  config.set({
+    scripts: [
+      {src: '/js/traceur-runtime.js'},
+      {src: '/js/es6-module-loader-sans-promises.src.js'},
+      {src: '/js/extension-register.js'},
+      {src: 'register_system.js'},
+      {src: 'benchmark.js'}
+    ]
+  });
+};

modules/benchmarks/src/change_detection/change_detection_benchmark.js

@@ -0,0 +1,60 @@
+import {ListWrapper, MapWrapper} from 'facade/collection';
+import {Parser} from 'change_detection/parser/parser';
+import {Lexer} from 'change_detection/parser/lexer';
+import {reflector} from 'reflection/reflection';
+
+import {
+  ChangeDetector,
+  ProtoRecordRange,
+  WatchGroupDispatcher,
+} from 'change_detection/change_detector';
+
+
+var ITERATIONS = 100000;
+
+export function run () {
+  reflector.registerGetters({
+    'a': function(obj){return obj.a},
+    'b': function(obj){return obj.b},
+    'c': function(obj){return obj.c}
+  });
+
+  reflector.registerSetters({
+    'a': function(obj, v){return obj.a = v},
+    'b': function(obj, v){return obj.b = v},
+    'c': function(obj, v){return obj.c = v}
+  });
+
+  var parser = new Parser(new Lexer());
+  var astWithSource = parser.parseBinding('a + b * c');
+
+  var prr = new ProtoRecordRange();
+  prr.addRecordsFromAST(astWithSource.ast, 'memo', false);
+
+  var dispatcher = new DummyDispatcher();
+  var rr = prr.instantiate(dispatcher, MapWrapper.create());
+  rr.setContext(new Component());
+
+  var cd = new ChangeDetector(rr);
+  for (var i = 0; i < ITERATIONS; ++i) {
+    cd.detectChanges();
+  }
+}
+
+
+class DummyDispatcher extends WatchGroupDispatcher {
+  onRecordChange(record, context) {
+  }
+}
+
+class Component {
+  a:number;
+  b:number;
+  c:number;
+
+  constructor() {
+    this.a = 1;
+    this.b = 2;
+    this.c = 3;
+  }
+}

modules/benchmarks/src/change_detection/register_system.es5

@@ -0,0 +1,10 @@
+System.paths = {
+  'core/*': '/js/core/lib/*.js',
+  'change_detection/*': '/js/change_detection/lib/*.js',
+  'facade/*': '/js/facade/lib/*.js',
+  'di/*': '/js/di/lib/*.js',
+  'rtts_assert/*': '/js/rtts_assert/lib/*.js',
+  'test_lib/*': '/js/test_lib/lib/*.js',
+  'benchmarks/*': '/js/benchmarks/lib/*.js'
+};
+register(System);