Struct FileCache 

pub struct FileCache<T> { /* private fields */ }

Parsed results per file, valid while the file’s Sig is unchanged.

Implementations

impl<T> FileCache<T>

pub fn get_or_parse( &self, path: &Path, sig: Sig, parse: impl FnOnce() -> T, ) -> Arc<T>

The cached result for path if its signature still matches sig, otherwise run parse and remember the result.

pub fn prune(&self, keep: &HashSet<PathBuf>)

Forget files that no longer exist / are no longer in scope.

pub fn prune_under(&self, root: &Path, keep: &HashSet<PathBuf>)

Forget cached files below root that are not in keep (deleted or out of scope), leaving every other root’s entries alone.

pub fn stats(&self) -> (usize, usize)

(hits, misses) since creation — what tests (and --bench) look at.

pub fn len(&self) -> usize

Number of cached files.

pub fn is_empty(&self) -> bool

Trait Implementations

impl<T> Default for FileCache<T>

fn default() -> Self

Returns the “default value” for a type.