[whatwg] WebWorkers and images

Jorge jorge at jorgechamorro.com
Fri Jan 14 03:04:03 PST 2011

On 14/01/2011, at 09:32, Simon Pieters wrote:
> On Thu, 13 Jan 2011 22:15:09 +0100, Boris Zbarsky <bzbarsky at mit.edu> wrote:
>>> Do current browsers implement the structured clones already ?
>> Firefox 4 does, for postMessage to workers (but not yet to other windows; known bug).  I'm not sure about others.
> Opera since 10.60 supports structured clone for workers and cross-document messaging (but not for storage).
>>> I think so too for objects composed only of data properties, but what about methods ? getters ? setters ? and prototypes ?
>> "Maybe".  It'd certainly take more work, and might start depending on exactly how your VM is structured.  Restricting to objects with null prototype and no non-data properties has the slight problem that imagedata doesn't have a null prototype.
> Structured clone currently doesn't support Functions.

Good. And if I understand it correctly (*), it does make a shallow copy, ignoring the prototype chain, doesn't it ?


Simon, what are your feelings about this proposed mechanism to pass-by-reference and make-unreachable ?
Do you think it's feasible, too ?

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