Be able to invoke a MethodHandle directly

[Rémi Forax]

Charles Oliver Nutter a écrit :
> � wrote:
>   
>> I know that invokedynamic spec should not be changed because
>> it will improve the backport speed, but is there a use case for that 
>> feature ?
>>     
>
> The obvious case I know of is simplifying the bootstrap logic; so rather 
> than having to create and install a MethodHandle AND invoke a method 
> directly yourself, you can just proceed to invoke the MethodHandle. In 
> the JRuby invokedynamic code this would be a bit simpler, since I could 
> just pass the incoming args straight through, rather than having to pull 
> them apart and call direct.
>   
Ok, i see.
In your invokedynamic linkage code, you get your method handle, call 
setTarget
on the call site and then call it directly to get the return value.
I see problem because the method handle invoke method is
specific (i.e use primtive, typed object, etc.) and you need to call it 
with an array
on objects, but I suppose this can be done using convert and collect 
adapters.
> - Charlie
>   
Ok, so i will implement direct calls in the backport.

Rémi