Trait FrameMap 

pub trait FrameMap {
    type ExistingEntry<'a>: FrameMapOccupiedEntry
       where Self: 'a;
    type VacantEntry<'a>: FrameMapVacantEntry
       where Self: 'a;

    // Required methods
    fn with_capacity(capacity: usize) -> Self;
    fn entry(
        &mut self,
        frame_id: FrameId,
    ) -> FrameMapEntry<Self::ExistingEntry<'_>, Self::VacantEntry<'_>>;
    fn len(&self) -> usize;
    fn retain(&mut self, f: impl FnMut(&FrameId, &mut FrameBuilder) -> bool);

    // Provided method
    fn is_empty(&self) -> bool { ... }
}

An abstraction of a Hash Map, suitable for reassembling frames.

Required Associated Types

type ExistingEntry<'a>: FrameMapOccupiedEntry where Self: 'a

type VacantEntry<'a>: FrameMapVacantEntry where Self: 'a

Required Methods

fn with_capacity(capacity: usize) -> Self

Creates a new map with the given capacity.

fn entry( &mut self, frame_id: FrameId, ) -> FrameMapEntry<Self::ExistingEntry<'_>, Self::VacantEntry<'_>>

Returns the FrameMapEntry API for a vacant or existing entry.

fn len(&self) -> usize

Number of elements in the map.

fn retain(&mut self, f: impl FnMut(&FrameId, &mut FrameBuilder) -> bool)

Removes all elements from the map, for which the given predicate evaluates to false.

Provided Methods

fn is_empty(&self) -> bool

Indicates whether the map is empty.

Defaults to check if the FrameMap::len is 0.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl FrameMap for FrameDashMap

type ExistingEntry<'a> = OccupiedEntry<'a, u32, FrameBuilder>

type VacantEntry<'a> = VacantEntry<'a, u32, FrameBuilder>

impl FrameMap for FrameHashMap

Available on crate feature hashbrown only.

type ExistingEntry<'a> = OccupiedEntry<'a, u32, FrameBuilder>

type VacantEntry<'a> = VacantEntry<'a, u32, FrameBuilder>