[jira] [Created] (GROOVY-10315) Unable to infer type variable of parameterized function that expects two parameters

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

Thodoris Sotiropoulos created GROOVY-10315:
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             Summary: Unable to infer type variable of parameterized function that expects two parameters
                 Key: GROOVY-10315
                 URL: https://issues.apache.org/jira/browse/GROOVY-10315
             Project: Groovy
          Issue Type: Bug
          Components: Static Type Checker
            Reporter: Thodoris Sotiropoulos


I have the following program

{code:java}
class A<T> {
  void m(T x) {}

  <T2> T m2() {
    return null;
  }
}

class Main {
  <T> void m1() {
    A<T> x = new A<T>();
    m3(m2(), x.m2()); // does not work
  }

  <T> T m2() {
    return null;
  }

  <T> void m3(T x, T y) {}

}
{code}

h3. Actual behavior

{code}
org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
test.groovy: 12: [Static type checking] - Cannot call <T> Main#m3(T, T) with arguments [#T, T]
 @ line 12, column 5.
       m3(m2(), x.m2()); // does not work
       ^

1 error
{code}

h3. Expected behaviour

Compile successfully.

Tested against master



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