v8/test/mjsunit/regress/regress-merge-descriptors.js

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// Copyright 2013 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
var extend = function (d, b) {
function __() { this.constructor = d; }
__.prototype = b.prototype;
d.prototype = new __();
};
var Car = (function (Super) {
var Car = function () {
var self = this;
Super.call(self);
Object.defineProperties(self, {
"make": {
enumerable: true,
configurable: true,
get: function () {
return "Ford";
}
}
});
self.copy = function () {
throw new Error("Meant to be overriden");
};
return self;
};
extend(Car, Super);
return Car;
}(Object));
var SuperCar = ((function (Super) {
var SuperCar = function (make) {
var self = this;
Super.call(self);
Object.defineProperties(self, {
"make": {
enumerable: true,
configurable: true,
get: function () {
return make;
}
}
});
// Convert self.copy from CONSTANT to FIELD.
self.copy = function () { };
return self;
};
extend(SuperCar, Super);
return SuperCar;
})(Car));
assertEquals("Ford", new Car().make);
assertEquals("Bugatti", new SuperCar("Bugatti").make);
assertEquals("Lambo", new SuperCar("Lambo").make);
assertEquals("Shelby", new SuperCar("Shelby").make);