On 12/28/2010 07:32 PM, Mark Roos wrote:
Thanks Remi, the extra comments really helped
You also mentioned
>
> There is another way to do something similar,
> you can call invokedynamic, use the bootstrap arguments to send
> the primitive values composing the object value and when the
> BSM is called returns a ConstantCallSite with as target a method handle
> created by MethodHandles.constant().
At first glance this seems like adding a lot of overhead ( a method
send ) as
a replacement for a simple ldc bytecode. Are you thinking that
hotspot will be
efficient in optimizing this?
We, the JSR292 EG, think that most of the VMs will be able to optimize this.
I like it theoretically, as I don't have to mess with the class
loader, but will
the overhead be acceptable?
In fact for hotspot, this kind of constant can be even more optimized
than a static final field containing a non-primitive values which is not
a real constant
(it can be modified by reflection).
happy new year
mark roos
Rémi
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