// Copyright (C) 2019 Caio Lima. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- description: Public class field initialization calls [[DefineOwnProperty]] and can be observed by Proxies esid: sec-define-field info: | DefineField(receiver, fieldRecord) ... 8. If fieldName is a Private Name, a. Perform ? PrivateFieldAdd(fieldName, receiver, initValue). 9. Else, a. Assert: IsPropertyKey(fieldName) is true. b. Perform ? CreateDataPropertyOrThrow(receiver, fieldName, initValue). 10. Return. features: [class, class-fields-public] ---*/ function ProxyBase() { return new Proxy(this, { defineProperty: function (target, key, descriptor) { throw new Test262Error(); } }); } class Base extends ProxyBase { f = "Test262"; } assert.throws(Test262Error, () => { new Base(); }); reportCompare(0, 0);