mirror of https://github.com/tc39/test262.git
25 lines
800 B
JavaScript
25 lines
800 B
JavaScript
// Copyright (C) 2016 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-generator-function-definitions
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es6id: 14.4
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description: >
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YieldExpression cannot be used within the FormalParameters of a generator
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function
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info: |
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GeneratorDeclaration[Yield, Default] :
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function * BindingIdentifier[?Yield] ( FormalParameters[Yield] ) { GeneratorBody }
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YieldExpression cannot be used within the FormalParameters of a generator
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function because any expressions that are part of FormalParameters are
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evaluated before the resulting generator object is in a resumable state.
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features: [generators, default-parameters]
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negative:
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phase: parse
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type: SyntaxError
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---*/
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$DONOTEVALUATE();
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function* g(x = yield) {}
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