class-definition-parent-proto-null.js

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// Copyright (C) 2016 Kevin Gibbons. All rights reserved.

// This code is governed by the BSD license found in the LICENSE file.

/*---

esid: sec-runtime-semantics-classdefinitionevaluation

description: A class which extends a constructor with null .prototype is a derived class.

---*/

var invoked = false;

var instance, savedArg;

function A(arg) {

  invoked = true;

  savedArg = arg;

  this.prop = 0;

A.prototype = null;

class C extends A {}

instance = new C(1);

assert.sameValue(invoked, true);

assert.sameValue(savedArg, 1);

assert.sameValue(instance.prop, 0);

reportCompare(0, 0);