various programs with unmatching curlies and parens do not cause SyntaxError to be thrown #5

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1. ArtskydJ commented on Jan 27, 2016

   

   ArtskydJ

   on Jan 27, 2016

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   Technically, node does allow some weird syntax:

   C:\Users\Michael\Github\JS_Source>cat unmatching.js
   }, function (){
   
   C:\Users\Michael\Github\JS_Source>node unmatching.js
   

   Although the specific case you mentioned does throw an error for another reason.

   Edit in case it's unclear, I do feel like this is an issue, even though node acts funny.
2. m1el commented on Jul 6, 2018

   

   m1el

   on Jul 6, 2018

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   There's also invalid result when providing a crafted program:

   let syntaxError = require('syntax-error');
   let err = syntaxError('}); function undefined() { return 42; }; ({');
   console.log(err(), err.toString());

   42 'function undefined() { return 42; }'

   As far as I know, on its own it doesn't allow arbitrary code execution, but I might be missing something.