[jira] [Updated] (GROOVY-7789) ClosureParams type inference compilation error when wrapping closure with object

["Eric Milles (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/GROOVY-7789?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eric Milles updated GROOVY-7789:
--------------------------------
    Fix Version/s: 4.0.7

> ClosureParams type inference compilation error when wrapping closure with object
> --------------------------------------------------------------------------------
>
>                 Key: GROOVY-7789
>                 URL: https://issues.apache.org/jira/browse/GROOVY-7789
>             Project: Groovy
>          Issue Type: Bug
>          Components: Static compilation
>    Affects Versions: 2.4.6, 2.5.15, 4.0.0-beta-1, 3.0.9
>            Reporter: Krzysztof Białek
>            Assignee: Eric Milles
>            Priority: Major
>             Fix For: 4.0.7
>
>
> The following code does not compile:
> {code}
> import groovy.transform.*
> import groovy.transform.stc.*
> @CompileStatic
> class Test {
>     class A<IN> {
>         Closure c
>         A(@ClosureParams(value = FromString, options = 'IN') Closure c) {
>             this.c = c
>         }
>         void call(IN param) {
>             c.call(param)
>         }
>     }
>     def <IN> A wrap(@ClosureParams(value = FromString, options = 'IN') Closure c) {
>         new A<IN>(c)
>     }
>     def test() {
>         (wrap { i -> i.size() }).call([])
>     }
> }
> {code}
> Compilation error:
> {code}
> org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
> /tmp/groovy-2.4.6/test.groovy: 25: [Static type checking] - Cannot find matching method java.lang.Object#size(). Please check if the declared type is right and if the method exists.
>  @ line 24, column 22.
>            (wrap { i -> i.size() }).call([])
> {code}
> I'd expect 'i' being infered as java.util.List
> Explicit this.<List>wrap does not help neither



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