DIP60: @nogc attribute

[via Digitalmars-d]

On Tuesday, 22 April 2014 at 13:11:55 UTC, Steven Schveighoffer 
wrote:
> Single threaded ARC can go a long way in D.

Not without changing language semantics/mechanisms?

>We statically know  whether data is shared or not.

I don't understand how you can know this when you allow foreign 
function invocation.

Even thread local globals can leak into another thread by 
mistake, unnoticed? Meaning random crashes that are hard to debug?