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.

michael@0 1 // Removing a Set entry already visited by an iterator does not cause any
michael@0 2 // entries to be skipped.
michael@0 3
michael@0 4 var str = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
michael@0 5 var set = Set(str);
michael@0 6
michael@0 7 var log = '';
michael@0 8 var i = 0;
michael@0 9 for (var x of set) {
michael@0 10 log += x;
michael@0 11 if (i++ % 5 === 0) {
michael@0 12 // Delete all entries preceding this one.
michael@0 13 for (let y of set) {
michael@0 14 if (y === x)
michael@0 15 break;
michael@0 16 set.delete(y);
michael@0 17 }
michael@0 18 }
michael@0 19 }
michael@0 20 assertEq(log, str);
michael@0 21 assertEq(set.size, 1); // Elements 0 to 24 are removed, leaving only 25 (Z).
michael@0 22 assertEq(set.has('Z'), true);

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