On Thursday, 11 August 2016 at 22:03:02 UTC, Walter Bright wrote:
On 8/11/2016 6:38 AM, Sönke Ludwig wrote:
What would be nice to add is a behavior specification for
'scope' member
variables (lifetime considered equal or slightly shorter than
parent object
lifetime). For example the `RefCountedSlice.payload` and
`count` fields could be
annotated with 'scope' to let the compiler actually guarantee
that they won't be
accessible in a way that conflicts with their lifetime (i.e.
the 'scope' return
of 'opIndex' would actually be enforced).
That adds a fair amount of complication I haven't worked
through.
It can probably be done by lowering:
scope T* payload;
Is conceptually:
private T* payload_;
@property scope T* payload() scope {
return payload_;
}