Struct QueryCache 

pub struct QueryCache { /* private fields */ }

Caches parsed queries by their EDN form. Cloning shares the cache.

Implementations

impl QueryCache

pub fn new() -> Self

Creates an empty cache.

pub fn parse(&self, form: &Edn) -> Result<Arc<Query>, QueryError>

Parses a query, reusing the cached parse for a previously seen form.

Errors

Returns QueryError when the form fails to parse; failures are not cached.

pub fn len(&self) -> usize

Number of cached parses.

Panics

Never; the lock is recovered if poisoned.

pub fn is_empty(&self) -> bool

Whether the cache is empty.

Trait Implementations

impl Clone for QueryCache

fn clone(&self) -> QueryCache

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QueryCache

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

Formats the value using the given formatter.

impl Default for QueryCache

fn default() -> QueryCache

Returns the “default value” for a type.