// |reftest| async // 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);