[
https://issues.apache.org/jira/browse/GROOVY-7772?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15179783#comment-15179783
]
Jochen Theodorou commented on GROOVY-7772:
------------------------------------------
what do you mean by extracted to the outside for y? You mean as String or do
you mean as some kind of method object? Because the later we cannot really do.
As for a String... that is what the current MethodClosure does already, the
static method check is done inside MethodClosure then.
> Class.&instanceMethod had better to have same meaning of
> Class::instanceMethod of Java8
> ---------------------------------------------------------------------------------------
>
> Key: GROOVY-7772
> URL: https://issues.apache.org/jira/browse/GROOVY-7772
> Project: Groovy
> Issue Type: Improvement
> Components: groovy-runtime
> Affects Versions: 2.4.6
> Reporter: UEHARA Junji
> Assignee: Jochen Theodorou
> Priority: Minor
>
> Groovy's operator .& for method is similar functionality to Java8's method
> reference operator ::.
> ||No.||lhs||rhs||meaing of Groovy's .& (Closure) ||meaning of java8's ::
> (FunctionalInterface)||
> |1|instance|instanceMethod| { ..args -> instance.instanceMethod(args) | same
> as groovy |
> |2|Class|staticMethod| { ..args -> Class.staticMethod(args) | same as groovy |
> |3|instance|staticMethod| ERROR groovy.lang.MissingMethodException: | Error
> same as groovy (compile error) |
> |4|Class|instanceMethod|error| Function<RetType,Class,Args..>, where method
> instance method of Class which is declared as ```RetType
> instanceMethod(Args..) {...}```. In other words it is interpreted as a
> function which takes LHS Class as the first parameter which additionally
> inserted to the method.)|
> IMHO, i'd like to propose to change the No 4 pattern semantics of groovy
> same as Java 8 's. Because:
> * You can write:
> {code}
> ["a,b,c"].collect ( String.&toUpperCase )
> {code}
> instaed of
> {code}
> ["a,b,c"].collect { it.toUpperCase() }
> {code}
> * Can have correspond operator to java8's ::. which is understandablea and
> needed for Java programmers.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
