Struct MediaVirtualRowProvider 

pub struct MediaVirtualRowProvider { /* private fields */ }

IM.7 — the virtual-row provider that turns cached media blocks into rows.

Reads only the cache the pump above fills; collect never blocks and never touches WASM, per the provider contract. version is the paint generation, so a landed produce invalidates the worker’s fingerprint and the rows are rebuilt without a keystroke.

Implementations

impl MediaVirtualRowProvider

pub fn new( id: ProviderId, buffer_id: BufferId, cache: PerBufferCache<WasmMediaCache>, generation: Arc<AtomicU64>, width_cols: usize, ) -> Self

Trait Implementations

impl Debug for MediaVirtualRowProvider

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

Formats the value using the given formatter.

impl VirtualRowProvider for MediaVirtualRowProvider

fn id(&self) -> ProviderId

A stable id for this provider. Used by the worker to deduplicate registration + route mutation notifications.

fn version(&self) -> u64

Monotonic version counter — the provider bumps it whenever the rows Self::collect would emit have changed. The worker uses the combined fingerprint of all providers’ versions to short-circuit on the cache-hit path without paying for the (potentially expensive) collect calls.

fn collect(&self) -> Vec<VirtualRow>

Emit the current set of virtual rows for the associated document.