enhanced type-inference

[Joe Bowbeer]

Update:

The NetBeans editor has caught-up with the graph-inference compiler, and my
simple samples now display error-free, in NetBeans jdk8lambda #1665 (with
jdk8 binary dist. b79).

bitbucket.org/joebowbeer/anagrams
bitbucket.org/joebowbeer/stringcompare
bitbucket.org/joebowbeer/wordchainkata

My prior nits have all been resolved as well.

--Joe


On Wed, Jan 30, 2013 at 3:23 PM, Joe Bowbeer <joe.bowbeer at gmail.com> wrote:

> Thanks!
>
> I picked up these changes when I installed binary snapshot b75.
>
> I updated my samples(*) accordingly and now the following static imports
> are working without addition type annotation:
>
>   Collectors.toList
>   ConcurrentCollectors.groupBy
>   Character.compare
>
> Nits:
>
> 1. orElse(null) is still a nuisance.  Will this be resolved?
>
> 2. ConcurrentCollectors.groupBy vs. Collectors.groupingBy (should be
> groupBy?)
>
>
> http://download.java.net/lambda/b75/docs/api/java/util/stream/ConcurrentCollectors.html#groupBy(java.util.function.Function)
>
> http://download.java.net/lambda/b75/docs/api/java/util/stream/Collectors.html#groupingBy(java.util.function.Function)
>
> 3. NetBeans jdk8lambda build #1612 is not as smart as the new compiler and
> flags the graph-inference lines as errors.
>
> http://bertram2.netbeans.org:8080/job/jdk8lambda/
>
>
> (*) Sample projects:
>
> bitbucket.org/joebowbeer/anagrams
> bitbucket.org/joebowbeer/stringcompare
> bitbucket.org/joebowbeer/wordchainkata
>
>
> --Joe
>
>
>
> On Fri, Jan 25, 2013 at 10:11 AM, Brian Goetz <brian.goetz at oracle.com>wrote:
>
>> More info on new type inference.
>>
>>
>> -------- Original Message --------
>> Subject: enhanced type-inference
>> Date: Fri, 25 Jan 2013 17:49:07 +0000
>> From: Maurizio Cimadamore <maurizio.cimadamore at oracle.**com<maurizio.cimadamore at oracle.com>
>> >
>> Organization: Oracle
>> To: lambda-dev <lambda-dev at openjdk.java.net>
>>
>> Dear lambdackers,
>> I've just pushed a patch that enables a more general inference support
>> for nested generic method calls/stuck expressions. This scheme has been
>> available for a while in lambda-repo (when using the hidden flag
>> -XDuseGraphInference), but we have now decided it's time to flip the
>> switch and make it the default when using JDK 8. In the past few weeks
>> I've been hunting down as many bugs in the new inference scheme as
>> possible, in order to provide a smooth transition from the old world to
>> the new one. I hope the transition is indeed smooth - but, given the
>> nature of the change, I also expect bugs to pop up here and there, so
>> please, keep throwing the kitchen sink at javac and report your
>> experience back to us; without your valuable feedback and dedication we
>> would never have gotten thus far.
>>
>> Example of things that now work:
>>
>>      Stream<Integer> si = ...
>>      List<Integer> l1 = si.into(new ArrayList<>()); //not really - too
>> late for that ;-)
>>      List<Integer> l2 = si.collect(toList());
>>      List<Integer> l3 = si.collect(toCollection(**ArrayList::new));
>>
>> Thanks
>> Maurizio
>>
>>
>>
>>
>>
>
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