Comment #10 on issue 2779 by [email protected]: Frozenness ignored by
optimized ++/--
http://code.google.com/p/v8/issues/detail?id=2779
One more remark. If the property name is not a literal, then the bug does
not occur. So, it does *not* occur in the following:
var o = {x: 5};
function f(o) { var p = 'x'; o[p]++; }
Object.freeze(o);
for (var i = 0; i < 10000; i++) { f(o); }
o.x;
but it *does* occur if the function body reads o.x++ or o['x']++.
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