| // Copyright (C) 2021 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 |
| description: The restriction on the base of a super property must not be enforced before the delete expression is evaluated. |
| info: | |
| # 13.3.7.3 MakeSuperPropertyReference ( actualThis, propertyKey, strict ) |
| |
| 1. Let env be GetThisEnvironment(). |
| 2. Assert: env.HasSuperBinding() is true. |
| 3. Let baseValue be ? env.GetSuperBase(). |
| 4. Let bv be ? RequireObjectCoercible(baseValue). |
| |
| # 13.5.1.2 Runtime Semantics: Evaluation |
| UnaryExpression : delete UnaryExpression |
| |
| 1. Let ref be the result of evaluating UnaryExpression. |
| 2. ReturnIfAbrupt(ref). |
| [...] |
| 5. If IsPropertyReference(ref) is true, then |
| a. Assert: ! IsPrivateReference(ref) is false. |
| b. If IsSuperReference(ref) is true, throw a ReferenceError exception. |
| features: [class] |
| ---*/ |
| |
| class C { |
| static m() { |
| delete super.x; |
| } |
| } |
| |
| Object.setPrototypeOf(C, null); |
| |
| assert.throws(ReferenceError, () => { |
| C.m(); |
| }); |
