Struct MaterializationTracker 

pub struct MaterializationTracker<K>
where
    K: Ord + Clone,
{ /* private fields */ }

Multi-arrangement tracker keyed by arrangement name.

Implementations

impl<K> MaterializationTracker<K>

where K: Ord + Clone,

pub const fn new() -> Self

Creates an empty multi-arrangement tracker.

pub fn register( &mut self, name: impl Into<String>, ) -> Result<(), ArrangementAlreadyTracked>

Registers a fresh arrangement, returning an error if name is taken.

pub fn arrangement_mut( &mut self, name: &str, ) -> Option<&mut MaterializedKeys<K>>

Returns a mutable view of an arrangement’s tracker.

pub fn arrangement(&self, name: &str) -> Option<&MaterializedKeys<K>>

Returns an immutable view of an arrangement’s tracker.

pub fn len(&self) -> usize

Returns the number of arrangements being tracked.

pub fn is_empty(&self) -> bool

Returns true when no arrangements are tracked.

pub fn forget_arrangement(&mut self, name: &str) -> Option<MaterializedKeys<K>>

Drops name from the tracker.

Trait Implementations

impl<K> Clone for MaterializationTracker<K>

where K: Ord + Clone + Clone,

fn clone(&self) -> MaterializationTracker<K>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<K> Debug for MaterializationTracker<K>

where K: Ord + Clone + Debug,

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

Formats the value using the given formatter.

impl<K> Default for MaterializationTracker<K>

where K: Ord + Clone + Default,

fn default() -> MaterializationTracker<K>

Returns the “default value” for a type.