On Sat, Oct 24, 2009 at 4:16 PM, kirk <kirk.pepperd...@gmail.com> wrote: [snip]
> The two things that I was not happy to see excluded were the multi-catch > and the Elvis operators... no one mentioned Elvis but I think it would > have been a very small yet very very useful addition to the language. > If you do an interview I'd be interested to know why Elvis got ditched. > The reasoning of the fate of Elvis in Project Coin was discussed in the announcement [1] of the Project Coin "final five (or so)": "While the Elvis operator and related operators are helpful in Groovy, differences between Groovy and Java, such as the presence of primitive types and interactions with boxing/unboxing render the operators less useful in Java <http://mail.openjdk.java.net/pipermail/coin-dev/2009-July/002089.html>. JDK 7 will support other ways to ease the pain of null-handling, such as the null checking enabled by JSR 308 <http://types.cs.washington.edu/jsr308/>." Additionally, as previous quoted in the Java Posse group [2], when Mark Mahieu prototyped and played with an Elvis implementation, his conclusion has not favorable [3]: "By the time I posted a link to a runnable prototype [of the Elvis operator] to the list, my own understanding was much, much clearer, and very different; after delving into the real detail I'd come to the conclusion that it's not a good enough fit (for Java) in the form proposed." -Joe [1] "Project Coin: The Final Five (Or So)," http://blogs.sun.com/darcy/entry/project_coin_final_five [2] http://groups.google.com/group/javaposse/browse_thread/thread/a29656e379fcad15/56c0fcaff911d1cd?lnk=gst&q=Ivory+tower+elvis+mark#56c0fcaff911d1cd [3] http://blogs.sun.com/darcy/entry/project_coin_final_five#comment-1252023525000 --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "The Java Posse" group. To post to this group, send email to javaposse@googlegroups.com To unsubscribe from this group, send email to javaposse+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/javaposse?hl=en -~----------~----~----~----~------~----~------~--~---
