| // Copyright (C) 2016 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| desc: > |
| It is a Syntax Error if BoundNames of FormalParameters contains any duplicate |
| elements. |
| template: syntax |
| negative: |
| phase: parse |
| type: SyntaxError |
| info: | |
| 14.1.2 Static Semantics: Early Errors |
| |
| StrictFormalParameters : FormalParameters |
| |
| - It is a Syntax Error if BoundNames of FormalParameters contains any |
| duplicate elements. |
| |
| FormalParameters : FormalParameterList |
| |
| - It is a Syntax Error if IsSimpleParameterList of FormalParameterList is |
| false and BoundNames of FormalParameterList contains any duplicate |
| elements. |
| features: [default-parameters] |
| ---*/ |
| |
| //- setup |
| $DONOTEVALUATE(); |
| //- params |
| x = 0, x |
