mirror of https://github.com/tc39/test262.git
42 lines
1.0 KiB
JavaScript
42 lines
1.0 KiB
JavaScript
// Copyright (C) 2017 Valerie Young. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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description: Successfully access private field
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esid: sec-getvalue
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info: |
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GetValue ( V )
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...
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5. If IsPropertyReference(V), then
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...
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b. If IsPrivateReference(V), then
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i. Let env be the running execution context's PrivateNameEnvironment.
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ii. Let field be ? ResolveBinding(GetReferencedName(V), env).
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iii. Assert: field is a Private Name.
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iv. Return ? PrivateFieldGet(field, base).
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PrivateFieldGet (P, O )
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1. Assert: P is a Private Name value.
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2. If O is not an object, throw a TypeError exception.
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3. Let entry be PrivateFieldFind(P, O).
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4. If entry is empty, throw a TypeError exception.
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5. Return entry.[[PrivateFieldValue]].
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features: [class, class-fields-private]
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---*/
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class A {
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#x = 'Avalue';
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x() {
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return this.#x;
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}
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}
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class B extends A {
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#x = 'Bvalue';
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}
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var b = new B();
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assert.sameValue(b.x(), 'Avalue')
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