DMD 0.148 - scope guard

[Dawid Ciężarkiewicz]

Cris wrote:
> Why do you need "case" at all?

Good point. Intention was to make it similar to switch (smth.) block.

void LongFunction()
{
    State save = UIElement.GetState();
    register (scope) {
        pass: UIElement.SetState(save); break;
        fail: UIElement.SetState(Failed(save));
    }
    ...lots of code...
}

This looks better. I think about "(scope)" part. It's redundant _but_ very
informative and leaves open doors for expanding.

Currently I like this syntax best. IMO it naturally fits, "register" keyword
is old (but rarely used) old C-keyword and it realy means: "register this
piece of code to be called when something with scope happens".