On Friday, 1 February 2013 at 19:10:26 UTC, Rainer Schuetze wrote:
On 01.02.2013 09:06, Dmitry Olshansky wrote:
01-Feb-2013 00:32, Rainer Schuetze пишет:
- how do you reference count immutable containers? You'll
have to cast
the payload to mutable and assume it is not in read-only
memory.
Containers of immutables can have ref-count easily.
And I'd say fully immutable containers are rare case and can
rely on GC.
Do you want different implementations of the containers
depending on the mutable/immutable/shared modifier? Would that
be possible?
You can only do that on the qualifier of the *parameters*, not
the container itself.
This is not possible because an S "is a" const(S). If the
implementation of an S was different from a const(S), then you'd
violate that. At best, a const(S) is an S with restricted
possibilities, bot not *different* possibilities.
