On Apr 11, 2011, at 12:47 PM, Brendan Eich wrote:
>>
>
> Then the only downside is the pd allocation. Any way to avoid that?
>
> /be
Use a GC that supports cheap allocation/recovery of short-lived objects :-)
It's probably premature optimization to worry about that one pd allocation
without knowing more about the actual use case. I suspect that in many cases,
the caller would actually want to get the pd back and so it would probably be
best to return: {object: obj, desc: pd}. Of course that has yet another
ephemeral object allocation. But really, if you over worry about such
allocations you end up doing FORTRAN-like coding.
Maybe it's time to work on some JavaScript ephemeral GC benchmarks...
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