I saved objects that were defined using several reference classes.
Later I modified the definition of reference classes a bit, creating new
functions and deleting old ones. The total number of functions did not
change. When I read them back I could only access some of the original
data.
I asked
Ross,
This is generally a hard problem in software systems. The only language I know
that explicitly addresses it is Erlang. Ultimately you need a system upgrade
process, which defines how to update the data in your system to match a new
version of the system. You could do this by writing a scr
On Fri, 2014-08-01 at 14:42 -0400, Brian Lee Yung Rowe wrote:
> Ross,
>
>
> This is generally a hard problem in software systems. The only
> language I know that explicitly addresses it is Erlang. Ultimately you
> need a system upgrade process, which defines how to update the data in
> your syste
Ross,
Ah I didn't think about Smalltalk. Doesn't surprise me that they supported
upgrades of this sort. That aside I think the question is whether it's
realistic for a language like R to support such a mechanism automatically.
Smalltalk and Erlang both have tight semantics that would be hard to
On Fri, 2014-08-01 at 16:06 -0400, Brian Lee Yung Rowe wrote:
> Ross,
>
>
> Ah I didn't think about Smalltalk. Doesn't surprise me that they
> supported upgrades of this sort. That aside I think the question is
> whether it's realistic for a language like R to support such a
> mechanism automatic
On Fri, Aug 1, 2014 at 4:47 PM, Ross Boylan wrote:
[...]
> First, I'd like to understand more about exactly what is saved to disk
> for reference and other classes, in particular how much meta-information
> they contain. And my mental model for reference class persistence is
> clearly wrong, beca
R6 objects are basically just environments, so they're probably pretty
simple to save and restore (I haven't tested it out, though).
-Winston
On Fri, Aug 1, 2014 at 4:00 PM, Gábor Csárdi wrote:
> On Fri, Aug 1, 2014 at 4:47 PM, Ross Boylan wrote:
> [...]
>> First, I'd like to understand more ab
