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Posted to notifications@groovy.apache.org by "Thodoris Sotiropoulos (Jira)" <ji...@apache.org> on 2022/05/20 10:48:00 UTC

[jira] [Created] (GROOVY-10632) Unable to infer type parameter of recursive method

Thodoris Sotiropoulos created GROOVY-10632:
----------------------------------------------

             Summary: Unable to infer type parameter of recursive method
                 Key: GROOVY-10632
                 URL: https://issues.apache.org/jira/browse/GROOVY-10632
             Project: Groovy
          Issue Type: Bug
          Components: Static Type Checker
            Reporter: Thodoris Sotiropoulos


I have the following program

{code}
class A<T> {}

class B<T extends A<String>> {
  B(T x) {}
}

class Test {
  <T extends A<String>> T test() {
    new B<T>(test());
    return null;
  }

}
{code}

h3. Actual behavior

{code}
org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
test.groovy: 9: [Static type checking] - Cannot call B#<init>(T) with arguments [A<T>]
 @ line 9, column 5.
       new B<T>(test());
       ^

1 error
{code}

h3. Expected behavior

Compile successfully

Tested against master (commit: a976ecdee1f17f7fafc55767de2d857c44d44697)



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