version name to its release date as days since the Unix epoch (absent when the date is unknown)
pool of unique dependency lists (shared across a package's versions)
version name to an index into PkgBlob.deps (absent when the version declares no dependencies)
Optionalnoncranthe subset of PkgBlob.versions that are not from CRAN (usually empty, so left undefined in memory)
version name to a delta-encoded ascending list of indices into PkgBlob.fns
A self-contained package. A
versions[ver]entry is a delta-encoded ascending list of indices into PkgBlob.fns (cumulative-sum to decode); its long runs of1just mean a version's functions sit in consecutive pool slots, which brotli collapses on disk. See PkgBlobTuple for the on-disk order.