| // This file was procedurally generated from the following sources: | |
| // - src/subclass-builtins/WeakSet.case | |
| // - src/subclass-builtins/default/expression.template | |
| /*--- | |
| description: new SubWeakSet() instanceof WeakSet (Subclass instanceof Heritage) | |
| features: [WeakSet] | |
| flags: [generated] | |
| ---*/ | |
| const Subclass = class extends WeakSet {} | |
| const sub = new Subclass(); | |
| assert(sub instanceof Subclass); | |
| assert(sub instanceof WeakSet); |