DIP69 - Implement scope for escape proof references

[Shammah Chancellor via Digitalmars-d]

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