// 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 `Yield` 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] ---*/ class C { #field; static *isNameIn() { return #field in (yield); } } let iter1 = C.isNameIn(); iter1.next(); assert.sameValue(iter1.next(new C()).value, true); let iter2 = C.isNameIn(); iter2.next(); assert.sameValue(iter2.next({}).value, false); reportCompare(0, 0);