| // Copyright 2021 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| description: Parsing observes the `Await` production parameter when present |
| info: | |
| Syntax |
| RelationalExpression[In, Yield, Await]: |
| [...] |
| [+In]PrivateIdentifier in ShiftExpression[?Yield, ?Await] |
| |
| [...] |
| |
| 1. Let privateIdentifier be the StringValue of PrivateIdentifier. |
| 2. Let rref be the result of evaluating ShiftExpression. |
| 3. Let rval be ? GetValue(rref). |
| 4. If Type(rval) is not Object, throw a TypeError exception. |
| esid: sec-relational-operators-runtime-semantics-evaluation |
| features: [class-fields-private, class-fields-private-in] |
| flags: [async] |
| ---*/ |
| |
| class C { |
| #field; |
| |
| static async isNameIn(value) { |
| return #field in await(value); |
| } |
| } |
| |
| C.isNameIn(new C()) |
| .then(function(result) { |
| assert.sameValue(result, true); |
| |
| return C.isNameIn({}); |
| }) |
| .then(function(result) { |
| assert.sameValue(result, false); |
| }).then($DONE, $DONE); |