Looks nice, then. `;)` Though, this may not be so easy to implement in other languages which don't provide direct access to memory addresses, affecting implementations such as Rhino which is written in Java.
Also worth noting that as this can't be implemented in pure ECMAScript, polyfilling is impossible. Though, the whole Weak* semantics are very hard to implement in pure ECMAScript anyway. On Wed, Oct 29, 2014 at 12:41 AM, Isiah Meadows <[email protected]> wrote: > Actually, the de-opts shouldn't exist, considering it's effective > equivalent in C++ would be pretty straightforward (and could be polyfilled > in Node literally via native code): > > ```cpp > Handle<JSWeakMap>* createClearedInstance() { > // ... > } > > // ... > > Handle<JSWeakMap>* wm->inst = createClearedInstance(); > ``` > On Oct 28, 2014 10:30 PM, "Fabrício Matté" <[email protected]> wrote: > >> > Not in pure ECMAScript being interpreted, but it can definitely be >> done in the implementation. >> >> Yeah I think so too, but if no where else in the specification uses this >> pattern, implementations would be required to implement new mechanisms and >> possibly have de-optimizations. >> >
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