gistfile1.txt

/*
I'm trying to define a method in a protocol that's generic,
then implement it in a class and allow the class to also have
a member that refers to that type.
*/

class AAA {
    let a: String
    init(a: String) {
        self.a = a
    }
}

protocol Foo {
    func foo<T: AAA>(things: [T])
}

class Bar<T: AAA>: Foo {
    var collected: [T] = []
    func foo<T: AAA>(things: [T]) {
        // If we make this class generic, we can't make the types match.
        collected.appendContentsOf(things)  // Cannot invoke… with an argument list of type '([T])'.
    }
}

var x: Foo!             // Can't make the protocol generic, else we can't use it here.