[jira] [Created] (GROOVY-9948) Cannot infer the right type in the presence of diamond operator

["Thodoris Sotiropoulos (Jira)" <ji...@apache.org>]

Thodoris Sotiropoulos created GROOVY-9948:
---------------------------------------------

             Summary: Cannot infer the right type in the presence of diamond operator
                 Key: GROOVY-9948
                 URL: https://issues.apache.org/jira/browse/GROOVY-9948
             Project: Groovy
          Issue Type: Bug
          Components: Static Type Checker
    Affects Versions: 3.0.7
            Reporter: Thodoris Sotiropoulos


Given the following program
{code:java}
class Foo<T> {
    T f;
    Foo (T f) {
      this.f = f;
    }
}

class Main  {
  public static void main(String[] args) {
      Foo<Integer> x = new Foo<>(1);
      assert x.f > 10 == true; // does not compile
      m(x);
  }  public static void m(Foo<Integer> x) {
      assert x.f > 10 == true; // compiles fine
  }
}
{code}
the type checker reports:
{code:java}
org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
Test.groovy: 11: [Static type checking] - Cannot find matching method java.lang.Object#compareTo(int). Please check if the declared type is correct and if the method exists.
 @ line 11, column 14.
         assert x.f > 10 == true;
                ^1 error

{code}
h3. Expected behaviour

I would expected that the program above compiles successfully.



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