| // Copyright (C) 2016 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| esid: sec-delete-operator-runtime-semantics-evaluation |
| es6id: 12.5.4.2 |
| description: SuperReferences may not be deleted |
| info: | |
| [...] |
| 5.If IsPropertyReference(ref) is true, then |
| a. If IsSuperReference(ref) is true, throw a ReferenceError exception. |
| features: [class] |
| ---*/ |
| |
| var caught; |
| |
| class C extends Object { |
| constructor() { |
| try { |
| delete super.x; |
| } catch (err) { |
| caught = err; |
| } |
| } |
| } |
| |
| // When the "construct" invocation completes and the "this" value is |
| // uninitialized, the specification dictates that a ReferenceError must be |
| // thrown. That behavior is tested elsewhere, so the error is ignored (if it is |
| // produced at all). |
| try { |
| new C(); |
| } catch (_) {} |
| |
| assert.sameValue(typeof caught, 'object'); |
| assert.sameValue(caught.constructor, ReferenceError); |
