See you at JVMLS

Rémi Forax forax at univ-mlv.fr
Tue Aug 18 22:19:41 UTC 2015


I should have mentioned that i have not found the time yet to see the presentation on valhalla so sorry if i say something stupid.

cheers,
Rémi 

Le 18 août 2015 23:59:53 CEST, "Rémi Forax" <forax at univ-mlv.fr> a écrit :
>It can not work because if the method in B is package visible it should
>in Foo$any or not depending if the code that use Foo$any is in the same
>package as B or not.
>
>regards,
>Rémi 
>
>Le 18 août 2015 23:53:21 CEST, Brian Goetz <brian.goetz at oracle.com> a
>écrit :
>>Yes, that has to work, though it doesn't currently.  On the list...
>>
>>On 8/18/2015 5:49 PM, Palo Marton wrote:
>>> Yes, that's a nice sidestep ;-)
>>> My question was meant in a general way, not only about results of
>>> instanceof/isAssignableFrom. What about methods of Bar? Will you
>>> recreate them in Foo$any? What about eg call to
>>> f.barMethod()?
>>> On ut, 18. aug 2015 at 23:39 Brian Goetz <brian.goetz at oracle.com
>>> <mailto:brian.goetz at oracle.com>> wrote:
>>>
>>>     I'll sidestep your clever question by pointing out that the left
>>operand
>>>     of an instanceof check is an expression, not a type.
>>>
>>>     If you have:
>>>
>>>           Foo<any> f = ...
>>>
>>>           if (f instanceof Bar) { ... }
>>>
>>>     this works just fine, because all instantiations of Foo<T> are
>>>     represented by classes whose supertype is Bar.  The harder
>>question is
>>>     the reflective one (Class.isAssignableFrom.)  But reflection is
>>still a
>>>     work in progress (as is the whole thing, of course.)
>>>
>>>     On 8/18/2015 5:30 PM, Palo Marton wrote:
>>>      > Thanks. I have just watched your talk on Valhalla. Just one
>>curious
>>>      > question on xxx$any interfaces: How do you handle this?
>>>      >
>>>      > class Foo<any T> extends Bar { }
>>>      >
>>>      > Foo$any instanceof Bar?
>>>      > On ut, 18. aug 2015 at 19:02 Brian Goetz
>><brian.goetz at oracle.com
>>>     <mailto:brian.goetz at oracle.com>
>>>      > <mailto:brian.goetz at oracle.com
>><mailto:brian.goetz at oracle.com>>>
>>>     wrote:
>>>      >
>>>      >     JVMLS talks up at:
>>>      > https://www.youtube.com/user/java
>>>      >
>>>      >
>>>      >     On 8/8/2015 12:05 PM, Brian Goetz wrote:
>>>      >      > I'll be doing a talk on the path from Model 1 to Model
>>2
>>>     (and a
>>>      >     glimpse
>>>      >      > of Model 3) at JVMLS next week.  Hope to see some of
>>you
>>>     there.
>>>      >     Videos
>>>      >      > should go up on the Java YouTube channel fairly
>quickly
>>>     after the
>>>      >      > conference.
>>>      >      >
>>>      >      > In the meantime ... I'll just note that we've had 50+
>>>     messages on the
>>>      >      > various "Model 2" threads and none of them started
>with
>>"I
>>>     tried
>>>      >     it out
>>>      >      > and..."
>>>      >      >
>>>      >      > So a reminder ... the most valuable input the
>community
>>>     can give
>>>      >     in this
>>>      >      > process is to provide *actual experience reports*. 
>>That's
>>>     the main
>>>      >      > reason we make the significant investment in making
>the
>>>     code and
>>>      >     design
>>>      >      > sketches available early -- so that people can
>actually
>>try it
>>>      >     out, and
>>>      >      > help us see the holes that we might have missed.
>>>      >      >
>>>      >      >
>>>      >
>>>      > --
>>>      > Pavol Marton
>>>
>>> --
>>> Pavol Marton



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