tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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scope-catch-param-var-none.js (945B)

      1 // Copyright (C) 2016 the V8 project authors. All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 /*---
      4 esid: sec-runtime-semantics-catchclauseevaluation
      5 description: Retainment of existing variable environment for `catch` parameter
      6 flags: [noStrict]
      7 ---*/
      8 
      9 var x = 1;
     10 var probeBefore = function() { return x; };
     11 var probeTry, probeParam, probeBlock;
     12 
     13 try {
     14  var x = 2;
     15  probeTry = function() { return x; };
     16  throw [];
     17 } catch ([_ = (eval('var x = 3;'), probeParam = function() { return x; })]) {
     18  var x = 4;
     19  probeBlock = function() { return x; };
     20 }
     21 
     22 assert.sameValue(probeBefore(), 4, 'reference preceding statement');
     23 assert.sameValue(probeTry(), 4, 'reference from `try` block');
     24 assert.sameValue(probeParam(), 4, 'reference within CatchParameter');
     25 assert.sameValue(probeBlock(), 4, 'reference from `catch` block');
     26 assert.sameValue(x, 4, 'reference following statement');
     27 
     28 reportCompare(0, 0);