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// |reftest| error:SyntaxError
// 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 cannot be used within the FormalParameters of a generator
function
info: |
GeneratorMethod[Yield]:
* PropertyName[?Yield] ( StrictFormalParameters[Yield] ) { GeneratorBody }
YieldExpression cannot be used within the FormalParameters of a generator
function because any expressions that are part of FormalParameters are
evaluated before the resulting generator object is in a resumable state.
features: [generators, default-parameters]
negative:
phase: parse
type: SyntaxError
---*/
$DONOTEVALUATE();
class C {
*g(x = yield) {}
}