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Posted to notifications@groovy.apache.org by "Paul King (JIRA)" <ji...@apache.org> on 2019/01/16 12:08:01 UTC

[jira] [Closed] (GROOVY-8892) Trait instance init blocks are called only when there are fields defined in same Trait

     [ https://issues.apache.org/jira/browse/GROOVY-8892?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Paul King closed GROOVY-8892.
-----------------------------

> Trait instance init blocks are called only when there are fields defined in same Trait
> --------------------------------------------------------------------------------------
>
>                 Key: GROOVY-8892
>                 URL: https://issues.apache.org/jira/browse/GROOVY-8892
>             Project: Groovy
>          Issue Type: Bug
>          Components: Compiler, groovy-runtime
>    Affects Versions: 2.5.5
>            Reporter: Anton Pryamostanov
>            Assignee: Paul King
>            Priority: Major
>             Fix For: 3.0.0-alpha-4, 2.5.5
>
>
> With ref. to GROOVY-8880, it seems Instance Init Blocks in Traits are appended/called only when there are fields defined in the same trait. 
> Example:
> {code}
> trait TraitOne {
>     {
>         System.out.println("Does not work")
>     }
> }
> trait TraitTwo {
>     Integer instanceCounter //immutable, non-shareable
>     {
>         System.out.println("Works")
>         instanceCounter = 1
>     }
> }
> class ClassWithTrait implements TraitOne, TraitTwo {
> }
> new ClassWithTrait().instanceCounter
> {code}
> Output:
> {code}
> Works
> {code}
> Expected output (order may differ):
> {code}
> Works
> Does not work
> {code}



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