Introducing Swift

Re:Introducing Swift by mantrax5 on Wednesday June 04, 2014 @01:54AM (#7844212)

Three things.

First of all, while you can't do this:

    case val:
    case val:
    case val:
        ...

You can do this in Swift, which does the same thing:

    case val, val, val:
        ...

Second, you can fall through in Swift, but you need to ask for it:

    case val:
        ...
        fallthrough
    case val:
        ...

So don't be sad.

And third... Seriously now, it's a "very powerful programming concept"? I bet 9 times out of 10 you use this very powerful programming concept in other languages, you did it by accident, not because you needed its pawa.

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Re:Introducing Swift by m_mueller on Wednesday June 04, 2014 @03:57AM (#7844477)

Thanks for the clarification on how to use it in Swift - like this it's indeed the perfect solution by enforcing it to be explicit. Having multiple cases rolled into one is also a very nice option. The snark wasn't really called for though. No, I don't 'use' it by accident, that would in most cases just become a bug. I use it when it makes code more concise rather than having nested ifs. Consider for example ACL rules where you set different privileges by default according to an access level.

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