Nothing's definitive at all for Groovy 2.5 or 3.0. It's up for discussion here on the list :-)
On Wed, Oct 19, 2016 at 2:33 AM, daniel_sun <[email protected]> wrote: > Thanks :) > Guillaume, is there a road map to show us the plan of Groovy3? e.g. when > to release the first beta version and what feature should be included? > > Cheers, > Daniel.Sun > > > > 在 "Guillaume Laforge [via Groovy]" <ml-node+[hidden email] > <http:///user/SendEmail.jtp?type=node&node=5736188&i=0>>，2016年10月19日 > 上午7:47写道： > > Thanks for the explanations! > (and great achievement!) > > On Wed, Oct 19, 2016 at 1:43 AM, daniel_sun <[hidden email]> wrote: > >> To be exact, lambda expression of Groovy enhances the syntax of Java >> lambda expression, e.g. lambda expression of Java is not callable. >> >> Cheers, >> Daniel.Sun >> >> >> >> 在 "Remi Forax [via Groovy]" <ml-node+[hidden email]>，2016年10月19日 >> 上午4:36写道： >> >> I would say Groovy Closure with the Java syntax. >> >> Rémi >> >> On October 18, 2016 8:21:34 PM GMT+02:00, Guillaume Laforge <[hidden >> email]> wrote: >>> >>> Is it actually Groovy closures? or "real" Java lambdas? >>> >>> On Tue, Oct 18, 2016 at 7:42 PM, Jochen Theodorou <[hidden email]> >>> wrote: >>> >>>> >>>> hah, I knew you can do it ;) >>>> >>>> On 18.10.2016 18:34, daniel_sun wrote: >>>> >>>>> Jochen, lambda expression is fully supported now :) >>>>> >>>>> https://github.com/danielsun1106/groovy-parser/commit/ >>>>> c380e4230ecef350855b9f56a220411635a7ff87 >>>>> >>>>> https://github.com/danielsun1106/groovy-parser/blob/master/src/test/ >>>>> resources/core/Lambda_01x.groovy >>>>> >>>>> >>>>> Cheers, >>>>> Daniel.Sun >>>>> >>>>> >>>>> >>>>> 在 "Jochen Theodorou [via Groovy]" <ml-node+[hidden email] >>>>> </user/SendEmail.jtp?type=node&node=5736176&i=0>>，2016年10月18日 00:37 >>>>> >>>>> 写道： >>>>> >>>>> >>>>> >>>>> On 17.10.2016 17:40, daniel_sun wrote: >>>>> > Hi all, >>>>> > >>>>> > Lambda expression for Groovy has been completed with a >>>>> little >>>>> > limitation, which is due to the existing closure whose parameter >>>>> list can be >>>>> > ambiguous to lambda expression, e.g. {a -> a} which can be >>>>> parsed >>>>> as a >>>>> > lambda expression in a block, but we expect it a closure. >>>>> >>>>> I think that limitation is ok >>>>> >>>>> > In order to >>>>> > resolve the ambiguities, the parentheses for parameters is a >>>>> must, e.g. >>>>> > *Java8* allows parentheses-less parameter for lambda when the >>>>> parameter is >>>>> > single and without type: e -> e, but *Groovy* only allows >>>>> parameter with >>>>> > parentheses: (e) -> e. >>>>> > >>>>> > *Here are some examples for lambda expression for >>>>> Groovy:* >>>>> > assert 9 == [1, 2, 3].stream().map((e) -> e + 1).reduce(0, (r, >>>>> e) >>>>> -> r + e) >>>>> >>>>> which means you cannot write >>>>> > assert 9 == [1, 2, 3].stream().map(e -> e + 1).reduce(0, (r, e) >>>>> -> r + e) >>>>> >>>>> which I find not so ok. Here again it would be no problem if it is >>>>> recognized as Closure if that is more easy to accomplish. >>>>> >>>>> bye Jochen >>>>> >>>>> >>>>> ------------------------------------------------------------ >>>>> ------------ >>>>> If you reply to this email, your message will be added to the >>>>> discussion below: >>>>> http://groovy.329449.n5.nabble.com/Lambda-expression-for-Groovy-3- >>>>> tp5736169p5736171.html >>>>> >>>>> To unsubscribe from Lambda expression for Groovy 3, click here. >>>>> NAML >>>>> <http://groovy.329449.n5.nabble.com/template/ >>>>> NamlServlet.jtp?macro=macro_viewer&id=instant_html% >>>>> 21nabble%3Aemail.naml&base=nabble.naml.namespaces. >>>>> BasicNamespace-nabble.view.web.template.NabbleNamespace- >>>>> nabble.view.web.template.NodeNamespace&breadcrumbs= >>>>> notify_subscribers%21nabble%3Aemail.naml-instant_emails% >>>>> 21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml> >>>>> >>>>> >>>>> >>>>> ------------------------------------------------------------ >>>>> ------------ >>>>> View this message in context: Re: Lambda expression for Groovy 3 >>>>> <http://groovy.329449.n5.nabble.com/Lambda-expression-for-Groovy-3- >>>>> tp5736169p5736176.html> >>>>> Sent from the Groovy Dev mailing list archive >>>>> <http://groovy.329449.n5.nabble.com/Groovy-Dev-f372993.html> at >>>>> Nabble.com. >>>>> >>>> >>>> >>> >>> >>> -- >>> Guillaume Laforge >>> Apache Groovy committer & PMC Vice-President >>> Developer Advocate @ Google Cloud Platform >>> >>> Blog: http://glaforge.appspot.com/ >>> Social: @glaforge <http://twitter.com/glaforge> / Google+ >>> <https://plus.google.com/u/0/114130972232398734985/posts> >>> >> >> -- >> Sent from my Android device with K-9 Mail. Please excuse my brevity. >> >> ------------------------------ >> If you reply to this email, your message will be added to the discussion >> below: >> http://groovy.329449.n5.nabble.com/Lambda-expression-for-Groovy-3- >> tp5736169p5736179.html >> To unsubscribe from Lambda expression for Groovy 3, click here. >> NAML >> <http://groovy.329449.n5.nabble.com/template/NamlServlet.jtp?macro=macro_viewer&id=instant_html%21nabble%3Aemail.naml&base=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.NodeNamespace&breadcrumbs=notify_subscribers%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml> >> >> >> ------------------------------ >> View this message in context: Re: Lambda expression for Groovy 3 >> <http://groovy.329449.n5.nabble.com/Lambda-expression-for-Groovy-3-tp5736169p5736184.html> >> Sent from the Groovy Dev mailing list archive >> <http://groovy.329449.n5.nabble.com/Groovy-Dev-f372993.html> at >> Nabble.com. >> > > > > -- > Guillaume Laforge > Apache Groovy committer & PMC Vice-President > Developer Advocate @ Google Cloud Platform > > Blog: http://glaforge.appspot.com/ > Social: @glaforge <http://twitter.com/glaforge> / Google+ > <https://plus.google.com/u/0/114130972232398734985/posts> > > > ------------------------------ > If you reply to this email, your message will be added to the discussion > below: > http://groovy.329449.n5.nabble.com/Lambda-expression-for-Groovy-3- > tp5736169p5736185.html > To unsubscribe from Lambda expression for Groovy 3, click here. > NAML > <http://groovy.329449.n5.nabble.com/template/NamlServlet.jtp?macro=macro_viewer&id=instant_html%21nabble%3Aemail.naml&base=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.NodeNamespace&breadcrumbs=notify_subscribers%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml> > > > ------------------------------ > View this message in context: Re: Lambda expression for Groovy 3 > <http://groovy.329449.n5.nabble.com/Lambda-expression-for-Groovy-3-tp5736169p5736188.html> > Sent from the Groovy Dev mailing list archive > <http://groovy.329449.n5.nabble.com/Groovy-Dev-f372993.html> at > Nabble.com. > -- Guillaume Laforge Apache Groovy committer & PMC Vice-President Developer Advocate @ Google Cloud Platform Blog: http://glaforge.appspot.com/ Social: @glaforge <http://twitter.com/glaforge> / Google+ <https://plus.google.com/u/0/114130972232398734985/posts>
