test262/test/language/expressions/generators/param-dflt-yield.js

22 lines
734 B
JavaScript

// 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: |
GeneratorExpression :
function * BindingIdentifier[Yield]opt ( FormalParameters[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: [default-parameters]
negative: SyntaxError
---*/
0, function*(x = yield) {};