jdk8 developer preview b17

[Peter Levart]

Wau, thanks for the exhaustive report.

Peter

On Sunday, December 18, 2011 12:15:49 PM maurizio cimadamore wrote:
> On 18-Dec-11 11:55 AM, Peter Levart wrote:
> > I've just noticed there has been a jdk8 dev preview b17 release (as of
> > dec.> 
> > 15th) and that It contains traces of lambda/method ref. support. Is this:
> >    http://jdk8.java.net/download.html
> > 
> > more recent as far as lambda support is concerned than the "special"
> > lambda> 
> > build at:
> >    http://jdk8.java.net/lambda/
> > 
> > Regards, Peter
> 
> Hi Peter,
> as part of the effort of moving the code from the lambda repository to
> the JDK 8 repository, we already started moving some bits. So far we
> successfully moved the parser code into the JDK 8 repository - however,
> the parser extensions are disabled in the JDK 8 repository (they are
> only enabled for internal testing purposes). In other words, it's still
> business as usual -i.e. the most recent version of the lambda compiler
> is still the one in the lambda repository, with the lambda binary
> snapshot to follow closely. Anyone interested in experimenting with
> lambda should still use lambda binary snapshot/lambda repository, as
> there is no way to get lambda code compiled with the JDK 8 compiler.
> 
> The integration process will continue in backgorund as bits in the
> lambda repository will become relatively stable and mature. Next
> integration steps are:
> 
> *) Attribution:
> - Add functional interface utilities methods to c.s.t.j.Types.java
> - Add attribution support for lambda expression
> - Add attribution support for method references
> - Retrofit diamond/conditional expression to use target-typing
> - Add inference routine for wildcards in functional descriptors
> - Add support for effectively final inference
> 
> *) Code generation:
> - Add abstract desugaring support for lambda expression/method reference
> - Add basic translation support for lambda/method references based on
> inner classes
> - Add advanced translation support for lambda/method references based on 292
> 
> Each of the above steps will involve related cleanup/refactoring
> activities in both the JDK8 compiler and the lambda repo compiler; for
> instance, in order to have an easy-to-maintain parser implementation
> with lambda/method reference support, we added some form of lookahead
> support in the JDK8 parser [1]. Such changes aims at reducing the
> difference between the bits in the lambda repository and the bits in the
> JDK 8 repo, so that a smoother integration process is possible.
> 
> [1] - http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7096014
> 
> Maurizio