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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
54 lines
1.2 KiB
JavaScript
54 lines
1.2 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 A {
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constructor () {
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this.a = 5;
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}
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f () {
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return 10;
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}
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super () {
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this.super = 10;
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return 15;
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}
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}
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class B extends A {
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constructor () {
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super ();
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assert (super.f === A.prototype.f);
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super.f = 8;
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assert (this.f === 8);
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assert (super.f === A.prototype.f);
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assert (this.a === 5);
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super.a = 10;
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assert (this.a === 10);
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assert (super.super () === 15);
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assert (this.super === 10);
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super.super = 20;
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assert (this.super === 20);
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assert (super.super () === 15);
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}
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}
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var b = new B;
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assert (b.f === 8);
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assert (b.a === 10);
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