[jira] [Closed] (GROOVY-9661) Since Groovy 3 ArrayExpression#sizeExpression can suddenly return null

["Paul King (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/GROOVY-9661?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Paul King closed GROOVY-9661.
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> Since Groovy 3 ArrayExpression#sizeExpression can suddenly return null
> ----------------------------------------------------------------------
>
>                 Key: GROOVY-9661
>                 URL: https://issues.apache.org/jira/browse/GROOVY-9661
>             Project: Groovy
>          Issue Type: Bug
>    Affects Versions: 3.0.5
>            Reporter: Björn Kautler
>            Assignee: Paul King
>            Priority: Major
>             Fix For: 4.0.0-alpha-1, 3.0.6
>
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> Before Groovy 3, {{ArrayExpression#sizeExpression}} never was {{null}}, because you could only write {{new Object[0][1]}}, but {{new Object[] \{ 1, 2 }}} was not valid syntax.
> Now with Groovy 3 both syntaxes are valid.
>  In the former case you get for {{expressions}} an empty list and for {{sizeExpression}} a list with the two size expressions.
>  In the latter case you get for {{expressions}} a list with the two member expressions and for {{sizeExpression}} you get {{null}}.
> This is somewhat unexpected and inconsistent.
>  Some code (Spock currently does unless [https://github.com/spockframework/spock/pull/1203/files] gets merged) might assume {{sizeExpression}} is always non-{{null}} as it always was.
> I asked Paul and he said this should probably be fixed on Groovy side to also provide an empty list here, so here is the according issue. :)



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