I'm not persuaded at this point that we want to support use of the
lazy loading infrastructure outside the core as we might want to
change it in the future. But the principle that promises are an
internal implementation detail that should be as invisible at possible
at the user level suggest that
OK, I switched to r-devel.
I'm caching the random seed by saving and lazy loading .Random.seed,
so I think it should always be valid (except that it becomes a promise
which is essentially an integer vector).
The complete process is as follows:
set.seed(1) # R generates .Random.seed now
tools:::
