Why would they? You can put single object in *infinite* amount of WeakSets and it won't prevent it's garbage collection.
On 9 Feb 2018 4:11 pm, "Michael Luder-Rosefield" <[email protected]> wrote: > Possibly a silly question, but... > > What happens re garbage collection if you have two WeakSets referencing > the same object? Do they each block that object's removal? > > On Fri, 9 Feb 2018 at 15:05 Michał Wadas <[email protected]> wrote: > >> English isn't my native language, so I probably made a mistake. >> >> I was asked to add WeakSet.prototype.union(iterable) creating new >> WeakSet instance including data from both iterable and original WeakSet. >> >> >> >> On 9 Feb 2018 4:01 pm, "David Bruant" <[email protected]> wrote: >> >>> Hi, >>> >>> My understanding is that cloning a WeakSet into a Set would remove all >>> its properties related to security and garbage collection. >>> >>> The properties related to security and garbage collection of WeakSet are >>> based on the fact that its elements are not enumerable by someone who would >>> only be holding a reference to the WeakSet. If you want to "clone" a >>> WeakSet into a Set it means you have an expectation that the set of >>> elements are deterministically enumerable. >>> >>> WeakSets and Sets, despite there close name and API, are used in >>> different circumstances. >>> >>> David >>> >>> >>> 2018-02-09 9:53 GMT-05:00 Michał Wadas <[email protected]>: >>> >>>> Hi. >>>> >>>> I was asked to include a way to clone WeakSet in Set builtins proposal. >>>> Is there any consensus on security of such operation? >>>> >>>> Michał Wadas >>>> >>>> _______________________________________________ >>>> es-discuss mailing list >>>> [email protected] >>>> https://mail.mozilla.org/listinfo/es-discuss >>>> >>>> >>> _______________________________________________ >> es-discuss mailing list >> [email protected] >> https://mail.mozilla.org/listinfo/es-discuss >> >
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