Good name for f.byLine.map!(x => x.idup)?

[Nick Treleaven]

On 16/03/2014 18:03, Adam D. Ruppe wrote:
> If byLine returned a scope item, then it wouldn't be allowed to escape
> and throw a nice compile error pointing people in the right
> direction.... scope rox so much i want it so badly. (i guess here the
> mutability pretty much tells the story too tho)

It would certainly help when using foreach. I think there are cases 
without foreach which would still be allowed to access previous range 
fronts though, as they could still be in scope.