Struct ValueOverlayReducer 

pub struct ValueOverlayReducer<T>(/* private fields */);

Marker reducer type for ValueOverlay<T>.

This reducer carries no state; it exists only to bind a concrete type parameter T to the CommReducer implementation below. Reduction is purely functional and uses right-wins merge semantics defined in rle::merge_value_runs.

Implementations

impl<T> ValueOverlayReducer<T>

pub fn new() -> ValueOverlayReducer<T>

Create a reducer for sparse ValueOverlay<T> updates.

Trait Implementations

impl<T> CommReducer for ValueOverlayReducer<T>

where T: Eq + Clone + Named,

Reducer for sparse overlay updates.

Combines two ValueOverlay<T> updates using right-wins semantics: overlapping runs from right overwrite those in left. The merged runs are then normalized and validated via ValueOverlay::try_from_runs.

Used by the corresponding Accumulator to perform distributed reduction of incremental mesh updates.

type Update = ValueOverlay<T>

The type of updates to be reduced.

fn reduce( &self, left: <ValueOverlayReducer<T> as CommReducer>::Update, right: <ValueOverlayReducer<T> as CommReducer>::Update, ) -> Result<<ValueOverlayReducer<T> as CommReducer>::Update, Error>

Reduce 2 updates into a single update.

impl<T> Named for ValueOverlayReducer<T>

where T: Named,

fn typename() -> &'static str

The globally unique type name for the type. This should typically be the fully qualified Rust name of the type.

fn typehash() -> u64

A globally unique hash for this type. TODO: actually enforce perfect hashing

fn typeid() -> TypeId

The TypeId for this type. TypeIds are unique only within a binary, and should not be used for global identification.

fn port() -> u64

A globally unique numeric identifier for this type.

fn arm(&self) -> Option<&'static str>

If the named type is an enum, this returns the name of the arm of the value self.

unsafe fn arm_unchecked(self_: *const ()) -> Option<&'static str>

An unsafe version of ‘arm’, accepting a pointer to the value, for use in type-erased settings.