My client needs to not glitch on me... :( On Oct 28, 2014 10:25 PM, "Isiah Meadows" <[email protected]> wrote:
> > On Oct 28, 2014 10:18 PM, "Fabrício Matté" <[email protected]> wrote: > > > > What I mean is, consider this code: > > > > ```js > > var wsRef = new WeakSet(); > > var wsRef2 = wsRef; > > wsRef.clear(); > > ``` > > > > As far as I can see, in the `wsRef.clear()` algorithm, the `this` value > has no relation with the `wsRef` identifier. Even if there was some > internal magic around changing the identifier's reference, there would > still be other references pointing to the old WeakSet object. So your > proposal seems to require replacing an object in the memory with another > while keeping the references intact, which (I believe) does not exist in > ECMAScript. > > > > I may be wrong though, let's other for someone with more experience than > me to have a say. `=]` > > > > Not in pure ECMAScript being interpreted, but it can definitely be done in > the implementation. > On Oct 28, 2014 10:18 PM, "Fabrício Matté" <[email protected]> wrote: > > > > What I mean is, consider this code: > > > > ```js > > var wsRef = new WeakSet(); > > var wsRef2 = wsRef; > > wsRef.clear(); > > ``` > > > > As far as I can see, in the `wsRef.clear()` algorithm, the `this` value > has no relation with the `wsRef` identifier. Even if there was some > internal magic around changing the identifier's reference, there would > still be other references pointing to the old WeakSet object. So your > proposal seems to require replacing an object in the memory with another > while keeping the references intact, which (I believe) does not exist in > ECMAScript. > > > > I may be wrong though, let's other for someone with more experience than > me to have a say. `=]` > > You can't in plain ECMAScript interpreted, but you definitely can in the > implementation backend. >
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