// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// This benchmark is based on the six-speed benchmark build output.
// Copyright 2014 Kevin Decker <https://github.com/kpdecker/six-speed/>

'use strict';

new BenchmarkSuite('Babel', [1000], [
  new Benchmark('Babel', false, false, 0, Babel),
]);

var _createClass = function() {
  function defineProperties(target, props) {
    for (var i = 0; i < props.length; i++) {
      var descriptor = props[i];
      descriptor.enumerable = descriptor.enumerable || false;
      descriptor.configurable = true;
      if ('value' in descriptor) descriptor.writable = true;
      Object.defineProperty(target, descriptor.key, descriptor);
    }
  }
  return function(Constructor, protoProps, staticProps) {
    if (protoProps) defineProperties(Constructor.prototype, protoProps);
    if (staticProps) defineProperties(Constructor, staticProps);
    return Constructor;
  };
}();

function _classCallCheck(instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError('Cannot call a class as a function');
  }
}

var C = function() {
  function C() {
    _classCallCheck(this, C);

    this.foo = 'bar';
  }

  _createClass(C, [{key: 'bar', value: function bar() {}}]);

  return C;
}();

function Babel() {
  return new C();
}
