A call to fn made on our behalf (do.call(fn, args), sapply(x, fn)): it accesses the state as fn does, or reads all of it if fn is opaque.
fn
do.call(fn, args)
sapply(x, fn)
A call to
fnmade on our behalf (do.call(fn, args),sapply(x, fn)): it accesses the state asfndoes, or reads all of it iffnis opaque.