tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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function-redeclaration-block.js (863B)

      1 // Copyright (C) 2019 Adrian Heine. All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 /*---
      4 description: In non-strict mode, duplicate LexicallyDeclaredNames in a block are allowed if they are bound by FunctionDeclarations
      5 esid: sec-block-duplicates-allowed-static-semantics
      6 es6id: B.3.3.4
      7 flags: [noStrict]
      8 info: |
      9    B.3.3.4 Changes to Block Static Semantics: Early Errors
     10 
     11    For web browser compatibility, that rule is modified with the addition of the **highlighted** text:
     12 
     13    Block: {StatementList}
     14 
     15    It is a Syntax Error if the LexicallyDeclaredNames of StatementList contains any duplicate entries, **unless the source code matching this production is not strict mode code and the duplicate entries are only bound by FunctionDeclarations**.
     16 ---*/
     17 
     18 { function a() {} function a() {} }
     19 
     20 reportCompare(0, 0);