[jira] [Assigned] (GROOVY-10698) Fail to infer the type argument when using nested diamond operator

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

     [ https://issues.apache.org/jira/browse/GROOVY-10698?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eric Milles reassigned GROOVY-10698:
------------------------------------

    Assignee: Eric Milles

> Fail to infer the type argument when using nested diamond operator
> ------------------------------------------------------------------
>
>                 Key: GROOVY-10698
>                 URL: https://issues.apache.org/jira/browse/GROOVY-10698
>             Project: Groovy
>          Issue Type: Bug
>          Components: Static Type Checker
>            Reporter: Thodoris Sotiropoulos
>            Assignee: Eric Milles
>            Priority: Major
>
> I have the following program
> {code}
> class A<T> {
>   A(T x, B<T> y) {}
> }
> class B<X> {}
> class Test {
>   void test() {
>     new A<>("fda", new B<>())
>   }
> }
> {code}
> h3. Actual behavior
> {code}
> org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
> test.groovy: 10: [Static type checking] - Cannot call A#<init>(java.lang.Object, B<java.lang.Object>) with arguments [java.lang.String, B<T>]
>  @ line 10, column 5.
>        new A<>("fda", new B<>())
>        ^
> 1 error
> {code}
> h3. Expected behavior
> Compile successfully.
> Tested against master (commit: 63bcab1bf13fb3811626fb1727c22e86528feb7f)
> **Notes:**
>    - this bug occurs when the type parameters of class A and B involve different names
>    - this bug is not triggered is groovy 4.0.2. It is introduced in groovy 4.0.3.



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