[jira] [Closed] (GROOVY-10057) MissingMethodException for pointer/reference from Class instance to Class method

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

     [ https://issues.apache.org/jira/browse/GROOVY-10057?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Paul King closed GROOVY-10057.
------------------------------

> MissingMethodException for pointer/reference from Class instance to Class method
> --------------------------------------------------------------------------------
>
>                 Key: GROOVY-10057
>                 URL: https://issues.apache.org/jira/browse/GROOVY-10057
>             Project: Groovy
>          Issue Type: Bug
>    Affects Versions: 4.0.0-alpha-3
>            Reporter: Eric Milles
>            Assignee: Eric Milles
>            Priority: Major
>             Fix For: 4.0.0-beta-1
>
>
> Consider the following:
> {code:groovy}
> Class c = Integer
> Predicate p
> p = c::isInstance
> assert p.test(null) == false
> assert p.test('xx') == false
> assert p.test(1234) == true
> p = c.&isInstance
> assert p.test(null) == false
> assert p.test('xx') == false
> assert p.test(1234) == true
> p = o -> c.isInstance(o)
> assert p.test(null) == false
> assert p.test('xx') == false
> assert p.test(1234) == true
> p = { c.isInstance(it) }
> assert p.test(null) == false
> assert p.test('xx') == false
> assert p.test(1234) == true
> {code}
> The reference and pointer groups fail while the lambda and closure groups succeed.  This is excerpted from GROOVY-10053 testing without SC.



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