| // 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-generator-function-definitions |
| es6id: 14.4 |
| description: > |
| YieldExpression operand may not include the `in` keyword in contexts where it |
| is disallowed |
| info: | |
| Syntax |
| |
| yield [no LineTerminator here] * AssignmentExpression[?In, +Yield] |
| negative: |
| phase: parse |
| type: SyntaxError |
| features: [generators] |
| ---*/ |
| |
| $DONOTEVALUATE(); |
| |
| function* g() { |
| for (yield * '' in {}; ; ) ; |
| } |