On 2014-12-04 09:24:13 +0000, Walter Bright said:
http://wiki.dlang.org/DIP69
Despite its length, this is a fairly simple proposal. It adds the
missing semantics for the 'scope' storage class in order to make it
possible to pass a reference to a function without it being possible
for it to escape.
This, among other things, makes a ref counting type practical. It also
makes it more practical to use other storage allocation schemes than
garbage collection.
It does not make scope into a type constructor, nor a general
type-annotation system.
It does not provide an ownership system, though it would complement one.
I like the basics of the proposal and I think it's the right direction.
HOWEVER, I strongly believe that function arguments should be scoped
by default and `impure` when they take reference which they will keep.
-Shammah