Struct QueryCache 

pub struct QueryCache { /* private fields */ }

Salsa-style query cache with automatic invalidation

Implementations

impl QueryCache

pub fn new(max_entries: usize) -> Self

Create a new query cache with the given max entries limit

pub fn with_limits(max_entries: usize, max_bytes: usize) -> Self

Create a cache with explicit entry and byte limits

pub fn with_defaults() -> Self

Create a cache with default settings

pub fn get<T: DeserializeOwned>(&self, key: &QueryKey) -> Option<T>

Get a cached value if it exists and is valid

Returns None if:

• The key doesn’t exist in cache
• Deserialization fails

pub fn insert<T: Serialize>( &self, key: QueryKey, value: &T, input_hashes: Vec<u64>, )

Insert a value into the cache

The input_hashes are used for invalidation - when any of these inputs change, this entry will be invalidated.

pub fn invalidate_by_input(&self, input_hash: u64) -> usize

Invalidate all cache entries that depend on the given input

Returns the number of entries invalidated.

pub fn invalidate(&self, key: &QueryKey) -> bool

Invalidate a cache entry by key

Returns true if an entry was removed.

pub fn stats(&self) -> SalsaCacheStats

Get cache statistics

pub fn len(&self) -> usize

Get current number of entries

pub fn is_empty(&self) -> bool

Check if cache is empty

pub fn revision(&self) -> u64

Get current revision number

pub fn clear(&self)

Clear all cache entries

pub fn total_bytes(&self) -> usize

Total estimated bytes currently used by cached entries

pub fn save_to_file(&self, path: &Path) -> DaemonResult<()>

Save cache to a file with atomic write and checksum validation

TIGER-P2-01: Uses write-to-temp + rename pattern for atomic writes.

pub fn load_from_file(path: &Path) -> DaemonResult<Self>

Load cache from a file with checksum validation

Trait Implementations

impl Default for QueryCache

fn default() -> Self

Returns the “default value” for a type.