tor-browser

The Tor Browser
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params-duplicate.js (888B)

      1 // |reftest| error:SyntaxError
      2 // Copyright 2019 Mike Pennisi. All rights reserved.
      3 // This code is governed by the BSD license found in the LICENSE file.
      4 
      5 /*---
      6 esid: sec-arrow-function-definitions
      7 description: Formal parameters may not contain duplicates
      8 info: |
      9  # 14.2 Arrow Function Definitions
     10 
     11  When the production
     12 
     13    ArrowParameters:CoverParenthesizedExpressionAndArrowParameterList
     14 
     15  is recognized the following grammar is used to refine the interpretation
     16  of CoverParenthesizedExpressionAndArrowParameterList:
     17 
     18    ArrowFormalParameters[Yield, Await]:
     19      (UniqueFormalParameters[?Yield, ?Await])
     20 
     21  # 14.1.2 Static Semantics: Early Errors
     22 
     23  UniqueFormalParameters:FormalParameters
     24 
     25  - It is a Syntax Error if BoundNames of FormalParameters contains any
     26    duplicate elements.
     27 negative:
     28  phase: parse
     29  type: SyntaxError
     30 ---*/
     31 
     32 $DONOTEVALUATE();
     33 
     34 0, (a, a) => { };