Instance pattern vs functional interface

[Remi Forax]

As usual, when introducing a new feature, the complexity arise with the interactions with the other already existing features.
We have instance patterns, we have functional interface,
does those things can be mixed ?

Is an interface with one abstract pattern a functional interface ?
  interface Matcher {
    pattern [String] is(String s);
  }
  
Can i declare a lambda with bindings ?
Matcher upperCase = [String] (String s) -> ...

as an equivalent of
Matcher upperCase = new Matcher() {
  pattern [String] match(String s) {
    ...
  }
};
  
So i can pattern match on it ?
Object o = ...
if (o instanceof upperCase.is(String value)) { ... }  
  
regards,
Rémi