* [registrar] Fix verification of generic parameters to accept unrelated generic types. Fixes#6687.
When we export generic classes to Objective-C, we verify that any generic
parameters are constrained so that we know how to handle them.
Example:
class MyObj<T> : NSObject where T: NSObject
{
[Export ("foo:")]
public void Foo (T obj);
}
in this case we verify that the parameter T is constrained to NSObject, so
that we can treat the argument like an NSObject.
The problem was when the function contained a generic type which was not
related to T:
class MyObj<T> : NSObject where T: NSObject
{
[Export ("foo:")]
public void Foo (Action<int> obj);
}
in which case the same logic would kick in and reject the Action<int> type
since it's not related to NSObject (no generic arguments could be found, and
the default response was 'not valid').
So I've changed the default response for generic types that are unrelated to
the generic parameter we're verifying to accept such types.
Fixes https://github.com/xamarin/xamarin-macios/issues/6687.
* No need to use a UIViewController as the super class, NSObject works just fine for this test.
Fixes the test build on macOS.
Rolf Bjarne Kvinge