load_from_file

metrale_grammar::compiler::mask_snapshot

Function load_from_file 

Source 
pub fn load_from_file(
    cache: &RuleLevelCache,
    identity: SnapshotIdentity,
    path: &Path,
) -> Result<usize, SnapshotError>
Expand description

Load path into cache. Returns the number of entries imported — 0 when the file is absent, stale, or corrupt (a miss).

Entries already present in cache win: RuleLevelCache::add rejects a duplicate key, so loading never overwrites a mask this process computed itself.