[jira] [Commented] (GROOVY-8737) STC Method resolution fails if other methods with more parameters exist

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[jira] [Commented] (GROOVY-8737) STC Method resolution fails if other methods with more parameters exist

JIRA jira@apache.org

    [ https://issues.apache.org/jira/browse/GROOVY-8737?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16574727#comment-16574727 ]

Paul King commented on GROOVY-8737:
-----------------------------------

Well, both scenarios apply. With varargs, I can supply 0 parts for the second variant 0 names for the 3rd variant. In that scenario all three methods would match.

> STC Method resolution fails if other methods with more parameters exist
> -----------------------------------------------------------------------
>
>                 Key: GROOVY-8737
>                 URL: https://issues.apache.org/jira/browse/GROOVY-8737
>             Project: Groovy
>          Issue Type: Bug
>          Components: Static compilation
>    Affects Versions: 2.4.15, 3.0.0-alpha-3, 2.5.1
>         Environment: Ubuntu 18.04, Java 8u181
>            Reporter: Patric Bechtel
>            Priority: Major
>
> Given two classes as follows
> {code:java}
> @groovy.transform.CompileStatic
> class A {
>    public static String msg( String key, Object[] args ) { "key=$key, args=$args" }
>    public static String msg( String key, Object[] args, Object[] parts ) { "key=$key, args=$args, parts=$parts" }
>    public static String msg( String key, Object[] args, String[] names ) { "key=$key, args=$args, names=$names" }
> }
> {code}
> and
> {code:java}
> @groovy.transform.CompileStatic
> public class B {
>    public static void main( String[] args ) {
>       println A.msg( 'hello', [ 'world' ] as Object[] )
>    }
> }
> {code}
> will not compile with the error
> {noformat}
> B.groovy: 4: [Static type checking] - Reference to method is ambiguous. Cannot choose between [java.lang.String A#msg(java.lang.String, java.lang.Object[], java.lang.Object[]), java.lang.String A#msg(java.lang.String, java.lang.Object[], java.lang.String[])]
>  @ line 4, column 15.
>          println A.msg( 'hello', [ 'world' ] as Object[] )
> {noformat}
> Though there's a perfect match for the called method, it tries to choose one of the longer signatures.



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