break while; break for; break foreach

[Andrei Alexandrescu]

On 5/13/21 12:55 PM, Steven Schveighoffer wrote:
> I've had a few occasions where I have to label a loop that contains a 
> switch statement (or vice versa), and then write `break label;` in order 
> to break out of the outer construct.
> 
> Wouldn't it be nice to just have this implicit, and allow `break 
> keyword;` where keyword is one of `for`, `while`, `foreach` and even 
> `switch`?
> 
> The labeling thing has drawbacks as well -- you can only have one label 
> of a given name in a function, making it hard when you have compile-time 
> loops that generate the same code with the same label (I've had to deal 
> with this by enclosing each branch in it's own immediately-called lambda).
> 
> Does this make sense as a language feature? I believe it doesn't break 
> (no pun intended) any code since you currently can't have a keyword in 
> that position.
> 
> Could also allow `continue keyword` though that can be dicey, since 
> continue doesn't work for `switch`, and you would have to have 2 
> different loops to make it reasonable. But for consistency, you could 
> have it.
> 
> -Steve

break static foreach would be really really nice