// Copyright (C) 2017 Valerie Young. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- description: Cannot access private field before the entry was added to [[PrivateFieldValues]] esid: sec-getvalue info: | GetValue ( V ) ... 5. If IsPropertyReference(V), then ... b. If IsPrivateReference(V), then i. Let env be the running execution context's PrivateNameEnvironment. ii. Let field be ? ResolveBinding(GetReferencedName(V), env). iii. Assert: field is a Private Name. iv. Return ? PrivateFieldGet(field, base). PrivateFieldGet (P, O ) 1. Assert: P is a Private Name value. 2. If O is not an object, throw a TypeError exception. 3. Let entry be PrivateFieldFind(P, O). 4. If entry is empty, throw a TypeError exception. PrivateFieldFind (P, O) 1. Assert: P is a Private Name value. 2. Assert: O is an object with a [[PrivateFieldValues]] internal slot. 3. For each element entry in O.[[PrivateFieldValues]], a. If entry.[[PrivateName]] is P, return entry. 4. Return empty. features: [class, class-fields-private, class-fields-public] ---*/ class C { y = this.#x; #x; } assert.throws(TypeError, function() { new C(); }) reportCompare(0, 0);