Re: [sonar-dev] Re: About Java 7 support
Oliver Burn <[email protected]> Thu, 15 Sep 2011 22:16:40 +1000
| Newsgroups | gmane.comp.java.audit.checkstyle.user,gmane.comp.java.sonar.devel |
|---|---|
| Message-ID | <CAHZftdW=NaSf0TKbmaQh5-RMaAwNa7G5yv9c059GxgQfPBcNBg@mail.gmail.com> |
--===============7286628609609706166== Content-Type: multipart/alternative; boundary=000e0cd56c5c58a4a604acf9d9a4 --000e0cd56c5c58a4a604acf9d9a4 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Hi Freddy, Prior to the release I have been testing against Java 7 code base and I found an error. I have re-opened https://sourceforge.net/tracker/index.php?func=3Ddetail&aid=3D3403265&group= _id=3D29721&atid=3D397080with the details. It would be great if Dinesh has a look at it. Thanks, Oliver On Wed, Sep 7, 2011 at 22:50, Oliver Burn <[email protected]> wrote: > Hopefully in the next month. > > I'd like to test it out first for bit. > > On Wed, Sep 7, 2011 at 18:14, Freddy Mallet <[email protected]>wrot= e: > >> Thanks Oliver ! >> >> Just in case, do you have any idea when the release of Checkstyle 5.5 >> might occur ? >> >> ---------------------------------------- >> Freddy Mallet >> www.SonarSource.org >> www.SonarSource.com >> ---------------------------------------- >> >> >> On Tue, Sep 6, 2011 at 1:37 PM, Oliver Burn <[email protected]>wrote= : >> >>> The patch has been applied to Checkstyle. >>> >>> Thanks! >>> >>> On Tue, Sep 6, 2011 at 18:15, Dinesh Bolkensteyn < >>> [email protected]> wrote: >>> >>>> There is already a proposed patch for the EOF issue from Lukas Platins= ky >>>> @ >>>> https://sourceforge.net/tracker/?func=3Ddetail&aid=3D3393810&group_id= =3D29721&atid=3D397080 >>>> (which I did not try) >>>> >>>> Indeed the support for "enum" as an identifier (Java 4) is still an op= en >>>> issue. >>>> >>>> -- >>>> Dinesh Bolkensteyn >>>> Tweeting? http://twitter.com/DBolkensteyn >>>> >>>> >>>> www.SonarSource.org >>>> www.SonarSource.com >>>> >>>> >>>> >>>> On Mon, Sep 5, 2011 at 10:49 PM, Freddy Mallet < >>>> [email protected]> wrote: >>>> >>>>> Hi Evgeny, >>>>> >>>>> In fact Dinesh already tried to fix the java grammar to handle this u= se >>>>> case but that's a bit tricky so we decided to postpone this investiga= tion. >>>>> >>>>> Freddy >>>>> >>>>> ---------------------------------------- >>>>> Freddy Mallet >>>>> www.SonarSource.org >>>>> www.SonarSource.com >>>>> ---------------------------------------- >>>>> >>>>> >>>>> On Mon, Sep 5, 2011 at 10:30 PM, Evgeny Mandrikov <[email protected]= m >>>>> > wrote: >>>>> >>>>>> Dinesh FYI another interesting open issue is about analysis of Java >>>>>> 1.4 code, where enum can be used as an identifier : >>>>>> http://jira.codehaus.org/browse/SONAR-1653 >>>>>> >>>>>> >>>>>> On Mon, Sep 5, 2011 at 19:56, Evgeny Mandrikov <[email protected]>= wrote: >>>>>> >>>>>>> Hi all, >>>>>>> >>>>>>> FYI: I tested this patch by applying it locally on Checkstyle >>>>>>> 5.5-SNAPSHOT and using this version in Sonar. >>>>>>> And it works like a charm for simple project, which uses all langua= ge >>>>>>> features of Java 7 ( >>>>>>> https://github.com/Godin/sonar-experiments/tree/master/java7-langua= ge-features >>>>>>> ). >>>>>>> Congratulations Dinesh! >>>>>>> >>>>>>> However Dinesh, could you please also take a look on another parsin= g >>>>>>> issue, which is still present in 5.5-SNAPSHOT : >>>>>>> http://sourceforge.net/tracker/?func=3Ddetail&atid=3D397078&aid=3D1= 667137&group_id=3D29721 >>>>>>> Currently in Sonar we have a workaround - we simply ignore this >>>>>>> error, but IMO would be better to fix it, if you can ;) >>>>>>> >>>>>>> On Fri, Sep 2, 2011 at 17:42, Dinesh Bolkensteyn < >>>>>>> [email protected]> wrote: >>>>>>> >>>>>>>> Dear Olivier, >>>>>>>> >>>>>>>> The patch is provided here: >>>>>>>> https://sourceforge.net/tracker/?func=3Ddetail&aid=3D3403265&group= _id=3D29721&atid=3D397080 >>>>>>>> >>>>>>>> Note that, because SourceForge does not preserve spaces in the >>>>>>>> comment, the AST part is messed up, which is why I post the commen= t >>>>>>>> hereunder again. >>>>>>>> >>>>>>>> *** Original comment attached to the patch *** >>>>>>>> >>>>>>>> This patch adds the support for Java 7 to Checkstyle's ANTLR >>>>>>>> grammar. >>>>>>>> It comes with 1 unit test for each new Java 7 language feature. >>>>>>>> >>>>>>>> This patch should be backwards-compatible: AST for files which do >>>>>>>> not use Java 7 features should be left unchanged. >>>>>>>> >>>>>>>> Impact by Java 7 language feature: >>>>>>>> >>>>>>>> 1) String in switch: None, the grammar already supported this. >>>>>>>> >>>>>>>> 2) Simplified variable arguments: None, the grammar should not be >>>>>>>> impacted by this feature. >>>>>>>> >>>>>>>> 3) Binary integer literals and underscores in numerical literals: >>>>>>>> The tokens value in the AST will be identical as the one written i= n the >>>>>>>> source code. >>>>>>>> >>>>>>>> 4) Diamond Generics: In presence of a diamond, the AST looks like= : >>>>>>>> >>>>>>>> +--TYPE_ARGUMENTS >>>>>>>> | >>>>>>>> +--GENERIC_START >>>>>>>> +--GENERIC_END >>>>>>>> >>>>>>>> 5) try-with-resources: In presence of a try-with-resources, the A= ST >>>>>>>> looks like: >>>>>>>> >>>>>>>> +--try >>>>>>>> | >>>>>>>> +--LPAREN (new node containing the "resource") >>>>>>>> | >>>>>>>> +--MODIFIERS >>>>>>>> +--TYPE >>>>>>>> | >>>>>>>> ... >>>>>>>> +--IDENT >>>>>>>> +--ASSIGN >>>>>>>> +--EXPR >>>>>>>> | >>>>>>>> ... >>>>>>>> +--RPAREN >>>>>>>> +--SLIST (list of statements of the try block, just like a >>>>>>>> try/catch) >>>>>>>> | >>>>>>>> ... >>>>>>>> +--LITERAL_CATCH (optionnally, if there was a catch, just like= a >>>>>>>> try/catch) >>>>>>>> +=85 (unchanged, just like a try/catch) >>>>>>>> >>>>>>>> 6) Multi-catch and more precise rethrow: In presence of a >>>>>>>> multi-catch, the AST looks like: >>>>>>>> >>>>>>>> +--try >>>>>>>> | >>>>>>>> +--SLIST (list of statements of the try block) >>>>>>>> | >>>>>>>> ... >>>>>>>> +--LITERAL_CATCH >>>>>>>> | >>>>>>>> +--LPAREN >>>>>>>> +--PARAMETER_DEF >>>>>>>> | >>>>>>>> +--MODIFIERS >>>>>>>> +--TYPE >>>>>>>> | >>>>>>>> +--IDENT (containing the first exception to catch, >>>>>>>> or a DOT node if it is a fully qualified type) >>>>>>>> +--IDENT (containing the second exception to catch= , >>>>>>>> or a DOT node if it is a fully qualified type) >>>>>>>> +--... >>>>>>>> +--IDENT (name of the exception variable) >>>>>>>> +--RPAREN >>>>>>>> +--SLIST (list of statements of the catch block) >>>>>>>> | >>>>>>>> ... >>>>>>>> >>>>>>>> Kind regards, >>>>>>>> Dinesh Bolkensteyn >>>>>>>> >>>>>>>> >>>>>>>> On Tue, Aug 16, 2011 at 10:07 AM, Freddy Mallet < >>>>>>>> [email protected]> wrote: >>>>>>>> >>>>>>>>> Thanks for your answer Oliver ! So we'll start with the first bab= y >>>>>>>>> step to patch the current Antlr grammar. We should get back to yo= u during >>>>>>>>> the upcoming weeks. >>>>>>>>> >>>>>>>>> Kind regards, >>>>>>>>> Freddy >>>>>>>>> ---------------------------------------- >>>>>>>>> Freddy Mallet >>>>>>>>> www.SonarSource.org >>>>>>>>> www.SonarSource.com >>>>>>>>> ---------------------------------------- >>>>>>>>> >>>>>>>>> >>>>>>>>> On Tue, Aug 16, 2011 at 4:34 AM, Oliver Burn < >>>>>>>>> [email protected]> wrote: >>>>>>>>> >>>>>>>>>> Hi Freddy, >>>>>>>>>> >>>>>>>>>> Thanks for your kind offer. >>>>>>>>>> >>>>>>>>>> My preference for a new grammar is motivated by the following >>>>>>>>>> thoughts: >>>>>>>>>> >>>>>>>>>> - Upgrade from ANTLRv2 to ANTLRv3 - there a numerous benefits >>>>>>>>>> to not being left behind, including newer features and the aw= esome >>>>>>>>>> ANTLRworks >>>>>>>>>> - The existing grammar has evolved along with the language - = a >>>>>>>>>> fresh implementation maybe cleaner >>>>>>>>>> - Hoping to find a ANTLR grammar out there that somebody is >>>>>>>>>> maintaining. Bare in mind that when Java 8 comes out, where w= ill be a series >>>>>>>>>> of changes to the grammar required. >>>>>>>>>> >>>>>>>>>> That all said, it would be easier to patch the existing grammar.= I >>>>>>>>>> would happily take a patch that does that. :-) >>>>>>>>>> >>>>>>>>>> Regards, >>>>>>>>>> Oliver >>>>>>>>>> >>>>>>>>>> On Tue, Aug 16, 2011 at 01:57, Freddy Mallet < >>>>>>>>>> [email protected]> wrote: >>>>>>>>>> >>>>>>>>>>> Hi Oliver, >>>>>>>>>>> >>>>>>>>>>> We would be happy to contribute to the support of java 7 [1]. >>>>>>>>>>> Upgrading the current Antlr grammar should not be too complex (= even if not >>>>>>>>>>> simple) in order to support new java language enhancements : >>>>>>>>>>> >>>>>>>>>>> - Strings in switch statements >>>>>>>>>>> - try-with-resources statements >>>>>>>>>>> - improved type inference for generic instance creation >>>>>>>>>>> ("diamond") >>>>>>>>>>> - better integral literals >>>>>>>>>>> - and improved exception handling (multi-catch) >>>>>>>>>>> >>>>>>>>>>> In ticket 3328367 [1], you mention the option to fully rewrite >>>>>>>>>>> the Antlr grammar instead of simply updating the existing one. = In few words, >>>>>>>>>>> could you explain what would be the advantages of this solution= and why you >>>>>>>>>>> seem to prefer this second solution ? >>>>>>>>>>> >>>>>>>>>>> Thanks >>>>>>>>>>> Freddy >>>>>>>>>>> >>>>>>>>>>> [1] - >>>>>>>>>>> http://sourceforge.net/tracker/?func=3Ddetail&aid=3D3328367&gro= up_id=3D29721&atid=3D397078you seem to be >>>>>>>>>>> ---------------------------------------- >>>>>>>>>>> Freddy Mallet >>>>>>>>>>> www.SonarSource.org >>>>>>>>>>> www.SonarSource.com >>>>>>>>>>> ---------------------------------------- >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> ---------------------------------------------------------------= --------------- >>>>>>>>>>> uberSVN's rich system and user administration capabilities and >>>>>>>>>>> model >>>>>>>>>>> configuration take the hassle out of deploying and managing >>>>>>>>>>> Subversion and >>>>>>>>>>> the tools developers use with it. Learn more about uberSVN and >>>>>>>>>>> get a free >>>>>>>>>>> download at: http://p.sf.net/sfu/wandisco-dev2dev >>>>>>>>>>> >>>>>>>>>>> _______________________________________________ >>>>>>>>>>> Checkstyle-user mailing list >>>>>>>>>>> [email protected] >>>>>>>>>>> https://lists.sourceforge.net/lists/listinfo/checkstyle-user >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> ----------------------------------------------------------------= -------------- >>>>>>>>>> uberSVN's rich system and user administration capabilities and >>>>>>>>>> model >>>>>>>>>> configuration take the hassle out of deploying and managing >>>>>>>>>> Subversion and >>>>>>>>>> the tools developers use with it. Learn more about uberSVN and g= et >>>>>>>>>> a free >>>>>>>>>> download at: http://p.sf.net/sfu/wandisco-dev2dev >>>>>>>>>> >>>>>>>>>> _______________________________________________ >>>>>>>>>> Checkstyle-user mailing list >>>>>>>>>> [email protected] >>>>>>>>>> https://lists.sourceforge.net/lists/listinfo/checkstyle-user >>>>>>>>>> >>>>>>>>>> >>>>>>>>> >>>>>>>> >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> Best regards, >>>>>>> Evgeny Mandrikov aka Godin <http://godin.net.ru> >>>>>>> http://twitter.com/_godin_ >>>>>>> >>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> Best regards, >>>>>> Evgeny Mandrikov aka Godin <http://godin.net.ru> >>>>>> http://twitter.com/_godin_ >>>>>> >>>>> >>>>> >>>> >>>> >>>> ----------------------------------------------------------------------= -------- >>>> Special Offer -- Download ArcSight Logger for FREE! >>>> Finally, a world-class log management solution at an even better >>>> price-free! And you'll get a free "Love Thy Logs" t-shirt when you >>>> download Logger. Secure your free ArcSight Logger TODAY! >>>> http://p.sf.net/sfu/arcsisghtdev2dev >>>> >>>> _______________________________________________ >>>> Checkstyle-user mailing list >>>> [email protected] >>>> https://lists.sourceforge.net/lists/listinfo/checkstyle-user >>>> >>>> >>> >>> >>> -----------------------------------------------------------------------= ------- >>> Special Offer -- Download ArcSight Logger for FREE! >>> Finally, a world-class log management solution at an even better >>> price-free! And you'll get a free "Love Thy Logs" t-shirt when you >>> download Logger. Secure your free ArcSight Logger TODAY! >>> http://p.sf.net/sfu/arcsisghtdev2dev >>> _______________________________________________ >>> Checkstyle-user mailing list >>> [email protected] >>> https://lists.sourceforge.net/lists/listinfo/checkstyle-user >>> >>> >> >> >> ------------------------------------------------------------------------= ------ >> Using storage to extend the benefits of virtualization and iSCSI >> Virtualization increases hardware utilization and delivers a new level o= f >> agility. Learn what those decisions are and how to modernize your storag= e >> and backup environments for virtualization. >> http://www.accelacomm.com/jaw/sfnl/114/51434361/ >> _______________________________________________ >> Checkstyle-user mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/checkstyle-user >> >> > --000e0cd56c5c58a4a604acf9d9a4 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Hi Freddy,<br><br>Prior to the release I have been testing against Java 7 c= ode base and I found an error. I have re-opened <a href=3D"https://sourcefo= rge.net/tracker/index.php?func=3Ddetail&aid=3D3403265&group_id=3D29= 721&atid=3D397080">https://sourceforge.net/tracker/index.php?func=3Ddet= ail&aid=3D3403265&group_id=3D29721&atid=3D397080</a> with the d= etails.<br> <br>It would be great if Dinesh has a look at it.<br><br>Thanks,<br>Oliver<= br><br><div class=3D"gmail_quote">On Wed, Sep 7, 2011 at 22:50, Oliver Burn= <span dir=3D"ltr"><<a href=3D"mailto:[email protected]">oliver@pupp= ycrawl.com</a>></span> wrote:<br> <blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p= x #ccc solid;padding-left:1ex;">Hopefully in the next month.<br><br>I'd= like to test it out first for bit.<br><br><div class=3D"gmail_quote">On We= d, Sep 7, 2011 at 18:14, Freddy Mallet <span dir=3D"ltr"><<a href=3D"mai= lto:[email protected]" target=3D"_blank">[email protected]</a>&= gt;</span> wrote:<br> <blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p= x #ccc solid;padding-left:1ex">Thanks Oliver !<div><br></div><div>Just in c= ase, do you have=A0any idea when the release of Checkstyle 5.5 might occur = ?</div> <div><div><br clear=3D"all">----------------------------------------<br>Fre= ddy Mallet<br><a href=3D"http://www.SonarSource.org" target=3D"_blank">www.= SonarSource.org</a><br> <a href=3D"http://www.SonarSource.com" target=3D"_blank">www.SonarSource.co= m</a><br>----------------------------------------<br> <br><br></div><div><div></div><div><div class=3D"gmail_quote">On Tue, Sep 6= , 2011 at 1:37 PM, Oliver Burn <span dir=3D"ltr"><<a href=3D"mailto:oliv= [email protected]" target=3D"_blank">[email protected]</a>></span> w= rote:<br> <blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p= x #ccc solid;padding-left:1ex"> The patch has been applied to Checkstyle.<br><br>Thanks!<br><br><div class= =3D"gmail_quote"><div><div></div><div>On Tue, Sep 6, 2011 at 18:15, Dinesh = Bolkensteyn <span dir=3D"ltr"><<a href=3D"mailto:dinesh.bolkensteyn@sona= rsource.com" target=3D"_blank">[email protected]</a>></= span> wrote:<br> </div></div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;bo= rder-left:1px #ccc solid;padding-left:1ex"><div><div></div><div>There is al= ready a proposed patch for the EOF issue from Lukas Platinsky @ <a href=3D"= https://sourceforge.net/tracker/?func=3Ddetail&aid=3D3393810&group_= id=3D29721&atid=3D397080" target=3D"_blank">https://sourceforge.net/tra= cker/?func=3Ddetail&aid=3D3393810&group_id=3D29721&atid=3D39708= 0</a><br> (which I did not try)<br><br>Indeed the support for "enum" as an = identifier (Java 4) is still an open issue.<br clear=3D"all"><font color=3D= "#888888"><span style=3D"font-family:arial,sans-serif;font-size:13px;border= -collapse:collapse"><br> --<br>Dinesh Bolkensteyn<br></span>Tweeting? <a href=3D"http://twitter.com/= DBolkensteyn" target=3D"_blank">http://twitter.com/DBolkensteyn</a></font><= div><span style=3D"font-family:arial, sans-serif;font-size:13px;border-coll= apse:collapse"></span><br> <span style=3D"font-family:arial,sans-serif;font-size:13px;border-collapse:= collapse"><br><a href=3D"http://www.SonarSource.org" target=3D"_blank">www.= SonarSource.org</a><br><a href=3D"http://www.SonarSource.com" target=3D"_bl= ank">www.SonarSource.com</a></span><br> <br> <br><br></div><div><div></div><div><div class=3D"gmail_quote">On Mon, Sep 5= , 2011 at 10:49 PM, Freddy Mallet <span dir=3D"ltr"><<a href=3D"mailto:f= [email protected]" target=3D"_blank">[email protected]= om</a>></span> wrote:<br> <blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p= x #ccc solid;padding-left:1ex"> Hi Evgeny,<div><br></div><div>In fact Dinesh already tried to fix the java = grammar to handle this use case but that's a bit tricky so we decided t= o postpone this investigation.</div><div><br></div><font color=3D"#888888">= <div> Freddy =A0</div></font><div><div> <br clear=3D"all">----------------------------------------<br>Freddy Mallet= <br><a href=3D"http://www.SonarSource.org" target=3D"_blank">www.SonarSourc= e.org</a><br><a href=3D"http://www.SonarSource.com" target=3D"_blank">www.S= onarSource.com</a><br> ----------------------------------------<br> <br><br></div><div><div></div><div><div class=3D"gmail_quote">On Mon, Sep 5= , 2011 at 10:30 PM, Evgeny Mandrikov <span dir=3D"ltr"><<a href=3D"mailt= o:[email protected]" target=3D"_blank">[email protected]</a>></span>= wrote:<br> <blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p= x #ccc solid;padding-left:1ex"> Dinesh FYI another interesting open issue is about analysis of Java 1.4 cod= e, where enum can be used as an identifier : <a href=3D"http://jira.codehau= s.org/browse/SONAR-1653" target=3D"_blank">http://jira.codehaus.org/browse/= SONAR-1653</a><div> <div></div><div><br> <br><div class=3D"gmail_quote">On Mon, Sep 5, 2011 at 19:56, Evgeny Mandrik= ov <span dir=3D"ltr"><<a href=3D"mailto:[email protected]" target=3D"_= blank">[email protected]</a>></span> wrote:<br><blockquote class=3D"gm= ail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-le= ft:1ex"> Hi all,<div><br></div><div>FYI: I tested this patch by applying it locally = on Checkstyle 5.5-SNAPSHOT and using this version in Sonar.</div><div>And i= t works like a charm for simple project, which uses all language features o= f Java 7 (=A0<a href=3D"https://github.com/Godin/sonar-experiments/tree/mas= ter/java7-language-features" target=3D"_blank">https://github.com/Godin/son= ar-experiments/tree/master/java7-language-features</a>=A0).</div> <div>Congratulations Dinesh!</div><div><br></div><div>However Dinesh, could= you please also take a look on another parsing issue, which is still prese= nt in 5.5-SNAPSHOT : <a href=3D"http://sourceforge.net/tracker/?func=3Ddeta= il&atid=3D397078&aid=3D1667137&group_id=3D29721" target=3D"_bla= nk">http://sourceforge.net/tracker/?func=3Ddetail&atid=3D397078&aid= =3D1667137&group_id=3D29721</a></div> <div>Currently in Sonar we have a workaround - we simply ignore this error,= =A0but IMO would be better to fix it, if you can ;)</div><div><div><div></d= iv><div><br><div class=3D"gmail_quote">On Fri, Sep 2, 2011 at 17:42, Dinesh= Bolkensteyn <span dir=3D"ltr"><<a href=3D"mailto:dinesh.bolkensteyn@son= arsource.com" target=3D"_blank">[email protected]</a>><= /span> wrote:<br> <blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p= x #ccc solid;padding-left:1ex">Dear Olivier,<br><br>The patch is provided h= ere: <a href=3D"https://sourceforge.net/tracker/?func=3Ddetail&aid=3D34= 03265&group_id=3D29721&atid=3D397080" target=3D"_blank">https://sou= rceforge.net/tracker/?func=3Ddetail&aid=3D3403265&group_id=3D29721&= amp;atid=3D397080</a><br> <br>Note that, because SourceForge does not preserve spaces in the comment,= the AST part is messed up, which is why I post the comment hereunder again= .<br><br>*** Original comment attached to the patch ***<br><br>This patch a= dds the support for Java 7 to Checkstyle's ANTLR grammar.<br> It comes with 1 unit test for each new Java 7 language feature.<br><br>This= patch should be backwards-compatible: AST for files which do not use Java = 7 features should be left unchanged.<br><br>Impact by Java 7 language featu= re:<br> <br>=A01) String in switch: None, the grammar already supported this.<br><b= r>=A02) Simplified variable arguments: None, the grammar should not be impa= cted by this feature.<br>=A0<br>=A03) Binary integer literals and underscor= es in numerical literals: The tokens value in the AST will be identical as = the one written in the source code.<br> <br>=A04) Diamond Generics: In presence of a diamond, the AST looks like:<b= r><br>+--TYPE_ARGUMENTS<br>=A0=A0=A0 |<br>=A0=A0=A0 +--GENERIC_START<br>=A0= =A0=A0 +--GENERIC_END<br><br>=A05) try-with-resources: In presence of a try= -with-resources, the AST looks like: <br> <br>+--try<br>=A0=A0=A0 |<br>=A0=A0=A0 +--LPAREN (new node containing the &= quot;resource")<br>=A0=A0=A0=A0=A0=A0=A0 |<br>=A0=A0=A0=A0=A0=A0=A0 +-= -MODIFIERS<br>=A0=A0=A0=A0=A0=A0=A0 +--TYPE<br>=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0 |<br>=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 ...<br>=A0=A0=A0=A0=A0=A0=A0 = +--IDENT<br>=A0=A0=A0=A0=A0=A0=A0 +--ASSIGN<br> =A0=A0=A0=A0=A0=A0=A0 +--EXPR<br> =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 |<br>=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 ..= .<br>=A0=A0=A0=A0=A0=A0=A0 +--RPAREN<br>=A0=A0=A0 +--SLIST (list of stateme= nts of the try block, just like a try/catch)<br>=A0=A0=A0=A0=A0=A0=A0 |<br>= =A0=A0=A0=A0=A0=A0=A0 ...<br>=A0=A0=A0 +--LITERAL_CATCH (optionnally, if th= ere was a catch, just like a try/catch)<br> =A0=A0=A0 +=85 (unchanged, just like a try/catch)<br><br>=A06) Multi-catch = and more precise rethrow: In presence of a multi-catch, the AST looks like:= <br>=A0<br>+--try<br>=A0=A0=A0 |<br>=A0=A0=A0 +--SLIST (list of statements = of the try block)<br> =A0=A0=A0=A0=A0=A0=A0 |<br>=A0=A0=A0=A0=A0=A0=A0 ...<br>=A0=A0=A0 +--LITERA= L_CATCH<br>=A0=A0=A0=A0=A0=A0=A0 |<br>=A0=A0=A0=A0=A0=A0=A0 +--LPAREN<br>= =A0=A0=A0=A0=A0=A0=A0 +--PARAMETER_DEF<br>=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= |<br>=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 +--MODIFIERS<br>=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0 +--TYPE<br>=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 |<= br>=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 +--IDENT (containing the f= irst exception to catch, or a DOT node if it is a fully qualified type)<br> =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 +--IDENT (containing the seco= nd exception to catch, or a DOT node if it is a fully qualified type)<br>= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 +--...<br>=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0 +--IDENT (name of the exception variable)<br>=A0=A0=A0=A0= =A0=A0=A0 +--RPAREN<br> =A0=A0=A0=A0=A0=A0=A0 +--SLIST (list of statements of the catch block)<br>= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 |<br>=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 ..= .<br><br>Kind regards,<br><font color=3D"#888888"> =A0Dinesh Bolkensteyn</font><div><div></div><div><br><br><div class=3D"gmai= l_quote">On Tue, Aug 16, 2011 at 10:07 AM, Freddy Mallet <span dir=3D"ltr">= <<a href=3D"mailto:[email protected]" target=3D"_blank">fred= [email protected]</a>></span> wrote:<br> <blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p= x #ccc solid;padding-left:1ex"><div>Thanks for your answer Oliver ! So we&#= 39;ll start with the first baby step to patch the current Antlr grammar. We= should get back to you during the upcoming weeks.=A0</div> <div><br></div><div>Kind regards,</div><div>Freddy<br clear=3D"all"> ----------------------------------------<br>Freddy Mallet<br><a href=3D"htt= p://www.SonarSource.org" target=3D"_blank">www.SonarSource.org</a><br><a hr= ef=3D"http://www.SonarSource.com" target=3D"_blank">www.SonarSource.com</a>= <br> ----------------------------------------<br> <br><br><div class=3D"gmail_quote">On Tue, Aug 16, 2011 at 4:34 AM, Oliver = Burn <span dir=3D"ltr"><<a href=3D"mailto:[email protected]" target= =3D"_blank">[email protected]</a>></span> wrote:<br><blockquote clas= s=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;pad= ding-left:1ex"> Hi Freddy,<br><br>Thanks for your kind offer.<br><br>My preference for a ne= w grammar is motivated by the following thoughts:<br><ul><li>Upgrade from A= NTLRv2 to ANTLRv3 - there a numerous benefits to not being left behind, inc= luding newer features and the awesome ANTLRworks</li> <li>The existing grammar has evolved along with the language - a fresh impl= ementation maybe cleaner</li><li>Hoping to find a ANTLR grammar out there t= hat somebody is maintaining. Bare in mind that when Java 8 comes out, where= will be a series of changes to the grammar required.</li> </ul>That all said, it would be easier to patch the existing grammar. I wou= ld happily take a patch that does that. :-)<br><br>Regards,<br>Oliver<br><b= r><div class=3D"gmail_quote"><div><div></div><div>On Tue, Aug 16, 2011 at 0= 1:57, Freddy Mallet <span dir=3D"ltr"><<a href=3D"mailto:freddy.mallet@g= mail.com" target=3D"_blank">[email protected]</a>></span> wrote:<b= r> </div></div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;bo= rder-left:1px #ccc solid;padding-left:1ex"><div><div></div><div>Hi Oliver,<= div><br></div><div>We would be happy to contribute to the support of java 7= [1]. Upgrading the current Antlr grammar should not be too complex (even i= f not simple) in order to support new java language enhancements :=A0</div> <div><div><ul><li>Strings in switch statements</li><li>try-with-resources s= tatements</li><li>improved type inference for generic instance creation (&q= uot;diamond")</li><li>better integral literals</li><li>and improved ex= ception handling (multi-catch)</li> </ul></div></div><div>In ticket=A03328367 [1], you mention the option to fu= lly rewrite the Antlr grammar instead of simply updating the existing one. = In few words, could you explain what would be the advantages of this soluti= on and why you seem to prefer this second solution ?</div> <div><br></div><div>Thanks</div><div>Freddy</div><div><br></div><div>[1] - = <a href=3D"http://sourceforge.net/tracker/?func=3Ddetail&aid=3D3328367&= amp;group_id=3D29721&atid=3D397078" target=3D"_blank">http://sourceforg= e.net/tracker/?func=3Ddetail&aid=3D3328367&group_id=3D29721&ati= d=3D397078</a> you seem to be=A0<br clear=3D"all"> ----------------------------------------<br><font color=3D"#888888">Freddy = Mallet<br><a href=3D"http://www.SonarSource.org" target=3D"_blank">www.Sona= rSource.org</a><br><a href=3D"http://www.SonarSource.com" target=3D"_blank"= >www.SonarSource.com</a><br> ----------------------------------------<br> </font></div> <br></div></div>-----------------------------------------------------------= -------------------<br> uberSVN's rich system and user administration capabilities and model<br= > configuration take the hassle out of deploying and managing Subversion and<= br> the tools developers use with it. 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How do next-generation virtual desktops provide companies an easier-to-deploy, easier-to-manage and more affordable virtual desktop model.http://www.accelacomm.com/jaw/sfnl/114/51426474/ --===============7286628609609706166== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Checkstyle-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/checkstyle-user --===============7286628609609706166==--