| // Copyright (C) 2020 Rick Waldron. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| esid: sec-object.seal |
| description: > |
| Object.seal AggregateError |
| info: | |
| If Type(O) is not Object, return O. |
| Let status be ? SetIntegrityLevel(O, sealed). |
| |
| SetIntegrityLevel ( O, level ) |
| |
| Assert: Type(O) is Object. |
| Assert: level is either sealed or frozen. |
| Let status be ? O.[[PreventExtensions]](). |
| If status is false, return false. |
| Let keys be ? O.[[OwnPropertyKeys]](). |
| If level is sealed, then |
| For each element k of keys, do |
| Perform ? DefinePropertyOrThrow(O, k, PropertyDescriptor { [[Configurable]]: false }). |
| Else, |
| Assert: level is frozen. |
| For each element k of keys, do |
| Let currentDesc be ? O.[[GetOwnProperty]](k). |
| If currentDesc is not undefined, then |
| If IsAccessorDescriptor(currentDesc) is true, then |
| Let desc be the PropertyDescriptor { [[Configurable]]: false }. |
| Else, |
| Let desc be the PropertyDescriptor { [[Configurable]]: false, [[Writable]]: false }. |
| Perform ? DefinePropertyOrThrow(O, k, desc). |
| Return true. |
| |
| features: [AggregateError] |
| ---*/ |
| |
| Object.seal(new AggregateError([])); |
