tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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redeclaration-of-catch-warning.js (983B)

      1 // |reftest| skip-if(!xulRuntime.shell)
      2 //
      3 // Any copyright is dedicated to the Public Domain.
      4 // http://creativecommons.org/licenses/publicdomain/
      5 
      6 //-----------------------------------------------------------------------------
      7 var BUGNUMBER = 622646;
      8 var summary = "Shadowing an exception identifier in a catch block with a " +
      9              "|const| or |let| declaration should throw an error";
     10 
     11 print(BUGNUMBER + ": " + summary);
     12 
     13 /**************
     14 * BEGIN TEST *
     15 **************/
     16 
     17 function assertRedeclarationErrorThrown(expression)
     18 {
     19  "use strict";
     20 
     21  try
     22  {
     23    evaluate(expression);
     24    throw new Error("Redeclaration error wasn't thrown");
     25  }
     26  catch(e)
     27  {
     28    assertEq(e.message.indexOf("catch") > 0, true,
     29             "wrong error, got " + e.message);
     30  }
     31 }
     32 
     33 assertRedeclarationErrorThrown("try {} catch(e) { const e = undefined; }");
     34 assertRedeclarationErrorThrown("try {} catch(e) { let e; }");
     35 
     36 if (typeof reportCompare === "function")
     37  reportCompare(true, true);