defer

defer.swift

func a(x: X) -> A {
    defer {
        print("Exiting the function")
    }
    
    if x == something() {
        return A(x); // Console prints: "Exiting the function"
    }
    
    // Do more stuff
    
    if x == other() {
        return A(x); // Console prints: "Exiting the function"
    }
    
    return A(x); // Console prints: "Exiting the function"
}