Struct Dense Asset Registry &nbsp; Copy item path

impl DenseAssetRegistry

pub fn new() -> Self

A new, empty registry.

pub fn len(&self) -> usize

Number of currently-live (occupied) assets.

pub fn is_empty(&self) -> bool

Whether the registry has no live assets.

pub fn insert( &mut self, section: SectionKind, offset: u64, length: u64, digest_prefix: u64, ) -> Result<DenseAssetRef, QispError>

Insert (or return the existing handle for) a dense asset, minting a content-derived token and a fresh generation.

Returns QispError::BudgetExceeded if the registry is at MAX_ASSETS capacity and no slot is free. Inserting content that already has a live slot is idempotent and returns the existing handle.

Note: the plan sketches this as -> DenseAssetRef; it is returned as a Result here so the hard capacity bound can fail closed instead of panicking or allocating without bound (plan §6.2, §12 completeness bar).

pub fn resolve(&self, r: &DenseAssetRef) -> Result<&AssetRecord, QispError>

Resolve a handle to its validated record. Fails closed:

QispError::UnknownAsset — the token is not present, or any of the handle’s section/offset/length/digest fields were tampered so they no longer match the stored record.
QispError::StaleAsset — the token is present but the handle’s generation is older than the slot’s current generation (the slot was evicted and reused).

Never panics on a bad handle.

pub fn evict(&mut self, r: &DenseAssetRef) -> Result<(), QispError>

Evict a live asset, freeing its slot. The slot’s generation is retained so a later re-insert bumps past it, invalidating any outstanding handle.

Fails closed the same way as resolve: a forged or stale handle cannot evict a live asset.

Trait Implementations§

impl Debug for DenseAssetRegistry

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

Formats the value using the given formatter. Read more

impl Default for DenseAssetRegistry

fn default() -> DenseAssetRegistry

Returns the “default value” for a type. Read more

Auto Trait Implementations§

impl UnwindSafe for DenseAssetRegistry

Blanket Implementations§

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