You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@daffodil.apache.org by "Steve Lawrence (Jira)" <ji...@apache.org> on 2020/06/22 16:37:00 UTC

[jira] [Comment Edited] (DAFFODIL-1673) code quality: use non-deprecated syntax for methods that don't return a value

    [ https://issues.apache.org/jira/browse/DAFFODIL-1673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17139539#comment-17139539 ] 

Steve Lawrence edited comment on DAFFODIL-1673 at 6/22/20, 4:36 PM:
--------------------------------------------------------------------

Fixed in commit c9ca5d6665d2d17fe637b13595a8b244584fd977


was (Author: slawrence):
Fixed in commit c5114f6fd7c5b4551632370b9465de1f2fe2012d

> code quality: use non-deprecated syntax for methods that don't return a value
> -----------------------------------------------------------------------------
>
>                 Key: DAFFODIL-1673
>                 URL: https://issues.apache.org/jira/browse/DAFFODIL-1673
>             Project: Daffodil
>          Issue Type: Improvement
>          Components: Clean Ups, Infrastructure
>            Reporter: Mike Beckerle
>            Priority: Major
>              Labels: beginner
>             Fix For: 3.0.0
>
>
> This syntax is officially deprecated.
> {code}def someFun(x: String) { .... } 
> {code}
> Instead one must write explicitly:
> {code}
> def someFun(x:String): Unit = { ... }
> {code}
> Meaning that the value of x.length is discarded and the function returns Unit (or () if you prefer) instead.
> I'd like to stress out that this is deprecated since Oct 29, 2013 (https://github.com/scala/scala/pull/3076/), but the warning only shows up if you compile with the -Xfuture flag.
> We should turn on the -Xfuture flag, and fix this and any other deprecations that come up.
> We may want to write a sed-script or other automation. I have generally preferred the now-deprecated style in my code, so there are many many cases.
> {code}
> scala -Xfuture -deprecation
> scala> def foo {}
> <console>:1: warning: Procedure syntax is deprecated. Convert procedure `foo` to method by adding `: Unit =`.
>        def foo {}
> foo: Unit
> {code}



--
This message was sent by Atlassian Jira
(v8.3.4#803005)