Struct MetaCache 

pub struct MetaCache {
    pub files_snapshot: Vec<(String, u64)>,
    pub tag_counts: HashMap<String, u32>,
}

Cached tag counts across all .mps files for mps tags --all.

The snapshot records (filename, size_bytes) for every .mps file at the time the cache was built. Before using the cache the caller should check MetaCache::is_valid against the current file list; if any file was added, removed, or changed in size the cache is stale.

Fields

files_snapshot: Vec<(String, u64)>

Sorted list of (filename, file_size_bytes) at cache-build time.

tag_counts: HashMap<String, u32>

Tag name → total occurrence count across all cached files.

Implementations

impl MetaCache

pub fn is_valid(&self, current_files: &[(String, u64)]) -> bool

Return true when current_files (sorted list of (filename, size)) matches the stored snapshot exactly, meaning no file was added, removed, or changed.

pub fn build_snapshot(files: &Path) -> Vec<(String, u64)>

Build a snapshot from the current .mps file list.

Trait Implementations

impl Clone for MetaCache

fn clone(&self) -> MetaCache

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MetaCache

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for MetaCache

fn default() -> MetaCache

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for MetaCache

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for MetaCache

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.