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js/src/jit-test/tests/collections/Set-iterator-remove-5.js@6474c204b198

js/src/jit-test/tests/collections/Set-iterator-remove-5.js

Wed, 31 Dec 2014 06:09:35 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Wed, 31 Dec 2014 06:09:35 +0100

changeset 0

6474c204b198

permissions

-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 // Removing a Set entry already visited by an iterator does not cause any

 // entries to be skipped.

 var str = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';

 var set = Set(str);

 var log = '';

 var i = 0;

 for (var x of set) {

     log += x;

     if (i++ % 5 === 0) {

         // Delete all entries preceding this one.

         for (let y of set) {

             if (y === x)

                 break;

             set.delete(y);

         }

     }

 }

 assertEq(log, str);

 assertEq(set.size, 1);  // Elements 0 to 24 are removed, leaving only 25 (Z).

 assertEq(set.has('Z'), true);