markvanderloo / hashr Goto Github PK
View Code? Open in Web Editor NEWQuicly compute hash values for R objects
Quicly compute hash values for R objects
I am using hashr::hash
to write a version of purrr::map
which only computes on the unique elements in the list, but I only want to recurse one layer down and I don't know what the values one layer down will be. So I currently have to do the following:
nonrecursive_hash <- function(x) {
if(inherits(x, c("list", "character"))) hashr::hash(ix, recursive=FALSE)
else hashr::hash(x)
}
single_layer_hash <- function(x) {
purrr::map_int(x, nonrecursive_hash)
}
It would be great if hash.default
was able to take recursive=FALSE
. It could error if TRUE
was passed.
Already implemented. Just needs testing.
Complicated R objects are currently hashed by hashing the raw serialized vector. Since serialization is rate-determining it would be nice to bypass it.
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