65536

I don't live in the Netherlands but I just wanted to say that it's a very inspiring project and also that it is a great thing of you to do that you are giving it away to someone else.

Upvoted and hoping it finds a good home :)

Speaking of which, coming from Rust (well, when I say it like that it sounds like Rust is the only language I ever used which is of course not true. I think Rust as a first language would be highly unusual still), I enjoyed being able to say

Rust code:

    let foo = if x <= 0
    {
        0
    }
    else if something_else > 50
    {
        9000
    }
    else
    {
        42
    };

And I miss this in Swift.

The ternary operator is fine on its own but I’m not a huge fan of nested ternary operators. With a bit of whitespace it's somewhat readable still but still not as comfortable and easy to read correctly.

Swift code:

    let foo = x <= 0 ?                0 :
             (somethingElse > 50 ? 9000 :
                                     42 )

One way of writing something that is more similar to the way I'd write it in Rust would be to make a closure and then run it.

Swift code:

    let foo =
    { () -> Int in
        if x <= 0
        {
            return 0
        }
        else if somethingElse > 50
        {
            return 9000
        }
        else
        {
            return 42
        }
    }()

But it's a bit annoying still, both to read and to write. Also, even in the current version of Swift (Swift 5), the compiler cannot infer the return type of the closure on its own even though all of the branches return an Int, so I'd have to explicitly annotate that as I have done in the code above.

I guess for a lot of people they would just make foo mutable and write the code as

Swift code:

    var foo = 42
    
    if x <= 0
    {
        foo = 0
    }
    else if somethingElse > 50
    {
        foo = 9000
    }

I concede that this is probably the most readable out of all of the three Swift code samples in my comment. But the point is that I didn't want foo to be mutable. I wanted to assign a value to it based on some simple logic and have it be immutable.