jakemac53/index.dart Secret

## index.dart
library dart2jsbench;

import 'dart:js';
import 'package:benchmark_harness/benchmark_harness.dart';

class NewJsObjectBenchmark extends BenchmarkBase {
  final JsFunction constructor;
  final List args;
  NewJsObjectBenchmark(this.constructor, String name, [this.args])
      : super('NewJsObjectBenchmark:$name');

  run() {
    new JsObject(constructor, args);
  }
}

main() {
  new NewJsObjectBenchmark(context['MyObject'], 'NoArgs').report();
  new NewJsObjectBenchmark(context['MyObject'], 'Args', ['thing']).report();
}

## index.html
<html>
<head>
  <script>
    MyObject = function(arg) {};
    MyObject.prototype = {};
  </script>
  <script type="application/dart" src="index.dart">
  </script>
  <script src="packages/browser/dart.js"></script>
</head>
</html>

## pubspec.yaml
name: dart2js_bench
dependencies:
  benchmark_harness: any
	library dart2jsbench;

	import 'dart:js';
	import 'package:benchmark_harness/benchmark_harness.dart';

	class NewJsObjectBenchmark extends BenchmarkBase {
	final JsFunction constructor;
	final List args;
	NewJsObjectBenchmark(this.constructor, String name, [this.args])
	: super('NewJsObjectBenchmark:$name');

	run() {
	new JsObject(constructor, args);
	}
	}

	main() {
	new NewJsObjectBenchmark(context['MyObject'], 'NoArgs').report();
	new NewJsObjectBenchmark(context['MyObject'], 'Args', ['thing']).report();
	}
	<html>
	<head>
	<script>
	MyObject = function(arg) {};
	MyObject.prototype = {};
	</script>
	<script type="application/dart" src="index.dart">
	</script>
	<script src="packages/browser/dart.js"></script>
	</head>
	</html>