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Posted to notifications@groovy.apache.org by "Eric Milles (Jira)" <ji...@apache.org> on 2020/10/12 14:23:00 UTC

[jira] [Commented] (GROOVY-9779) Inconsistency with callable properties in static context

    [ https://issues.apache.org/jira/browse/GROOVY-9779?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17212406#comment-17212406 ] 

Eric Milles commented on GROOVY-9779:
-------------------------------------

{{MetaClassImpl#invokeStaticMethod}} does this at the end:
{code:java}
        if (prop != null) {
            MetaClass propMC = registry.getMetaClass(prop.getClass());
            return propMC.invokeMethod(prop, CLOSURE_CALL_METHOD, arguments);
        }

        return invokeStaticMissingMethod(sender, methodName, arguments);
    }
{code}

This is where a non-closure property is tried as a callable.  {{invokeMethod}} ends with [{{invokePropertyOrMissing}}|https://github.com/apache/groovy/blob/master/src/main/java/groovy/lang/MetaClassImpl.java#L1315] which does not try the property as callable unless it is a closure or a script binding variable.

> Inconsistency with callable properties in static context
> --------------------------------------------------------
>
>                 Key: GROOVY-9779
>                 URL: https://issues.apache.org/jira/browse/GROOVY-9779
>             Project: Groovy
>          Issue Type: Bug
>    Affects Versions: 3.0.6
>            Reporter: Daniil Ovchinnikov
>            Priority: Major
>
> {code:title=playground.groovy}
> class C {
>     def call() {
>         42
>     }
> }
> class Container {
>     static final staticC   = new C()
>     def          instanceC = new C()
> }
> assert Container.staticC() == 42 // works fine
> def container = new Container()
> assert container.staticC() == 42 // MissingMethodException
> assert container.instanceC() == 42 // MissingMethodException
> {code}
> I'd expect the invocations to fail or to work in both static and instance contexts.



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