mirror of
https://github.com/jerryscript-project/jerryscript.git
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d1860d0e34
This patch is the second milestone of the implementation of this new language element. Supported: - Single class inheritance - Functionality of 'super' keyword - Implicit constructor in class heritage - Specific behaviour while extending with the built-in 'Array' or '%TypedArray%' object - Abstract subclasses (Mix-ins) JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu
117 lines
2.5 KiB
JavaScript
117 lines
2.5 KiB
JavaScript
/* Copyright JS Foundation and other contributors, http://js.foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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class Animal {
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constructor (name) {
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this.name = name;
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}
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hello () {
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return "Hello I am " + this.name;
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}
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static speak () {
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return "Animals roar.";
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}
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static explain () {
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return "I can walk,";
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}
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whoAmI () {
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return "I am an Animal.";
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}
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breath () {
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return "I am breathing.";
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}
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get myName () {
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return this.name;
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}
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set rename (name) {
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this.name = name;
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}
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}
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class Dog extends Animal {
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constructor (name, barks) {
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super (name);
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this.barks = barks;
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}
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hello () {
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return super.hello () + " and I can " + (this.barks ? "bark" : "not bark");
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}
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whoAmI () {
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return "I am a Dog.";
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}
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static speak () {
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return "Dogs bark.";
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}
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static explain () {
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return super.explain () + " jump,";
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}
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bark () {
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return this.barks ? "Woof" : "----";
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}
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}
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class Doge extends Dog {
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constructor (name, barks, awesomeness) {
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super (name, barks);
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this.awesomeness = awesomeness;
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}
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hello () {
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return super.hello () + " and I'm " + (this.awesomeness > 9000 ? "super awesome" : "awesome") + ".";
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}
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whoAmI ( ) {
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return "I am a Doge.";
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}
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static speak () {
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return "Doges wow.";
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}
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static explain () {
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return super.explain () + " dance.";
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}
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}
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var doge = new Doge ("doggoe", true, 10000);
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assert (doge.name === "doggoe");
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doge.rename = "doggo";
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assert (doge.myName === "doggo");
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assert (doge.barks === true);
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assert (doge.awesomeness === 10000);
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assert (doge.hello () === "Hello I am doggo and I can bark and I'm super awesome.");
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assert (doge.whoAmI () === "I am a Doge.");
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assert (doge.breath () === "I am breathing.");
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assert (doge.bark () === "Woof");
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assert (Doge.speak () === "Doges wow.");
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assert (Doge.explain () === "I can walk, jump, dance.");
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assert (doge instanceof Animal);
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assert (doge instanceof Dog);
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assert (doge instanceof Doge);
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assert (Dog.prototype.constructor === Dog)
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assert (Doge.prototype.constructor === Doge)
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