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import java.lang.reflect.*;
abstract aspect GiveMeFoo<T> {
declare parents : C implements I<T>;
}
public aspect DeclareParentsWithTypeVars extends GiveMeFoo<String> {
public static void main(String[] args) {
C c = new C();
if (! (c instanceof I)) throw new RuntimeException("C should implement I");
Type[] superinterfaces = C.class.getGenericInterfaces();
if (! (superinterfaces[0] instanceof ParameterizedType)) throw new RuntimeException("Expected to get parameterized interface but found " + superinterfaces[0]);
ParameterizedType pt = (ParameterizedType) superinterfaces[0];
Type[] typeArguments = pt.getActualTypeArguments();
if (typeArguments[0] != String.class) throw new RuntimeException("Expecting String parameter but found " + typeArguments[0]);
}
}
class C {
// public Object identity(Object o) { return o; }
public String identity(String aString) {
return aString;
}
}
interface I<E> {
E identity(E anE);
}
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