| // Copyright 2021 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| description: Value when private name describes a field |
| info: | |
| 7. Let privateName be ? GetValue(privateNameBinding). |
| 8. Assert: privateName is a Private Name. |
| 9. If privateName.[[Kind]] is "field", |
| a. If ! PrivateFieldFind(privateName, rval) is not empty, then return true. |
| [...] |
| 11. Return false. |
| esid: sec-relational-operators-runtime-semantics-evaluation |
| features: [class-fields-private, class-fields-private-in] |
| ---*/ |
| |
| class Class { |
| #field; |
| |
| static isNameIn(value) { |
| return #field in value; |
| } |
| } |
| |
| assert.sameValue(Class.isNameIn({}), false); |
| assert.sameValue(Class.isNameIn(new Class()), true); |
