LazyOverlay

reth_chain_state

Struct LazyOverlay 

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pub struct LazyOverlay { /* private fields */ }
Expand description

Lazily computed trie overlay.

Captures the inputs needed to compute a [TrieInputSorted] and defers the actual computation until first access. This is conceptually similar to DeferredTrieData but for overlay computation.

§Fast Path vs Slow Path

  • Fast path: If the tip block’s cached anchored_trie_input is ready and its anchor_hash matches our expected anchor, we can reuse it directly (O(1)).
  • Slow path: Otherwise, we merge all ancestor blocks’ trie data into a new overlay.

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impl LazyOverlay

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pub fn new(anchor_hash: B256, blocks: Vec<DeferredTrieData>) -> Self

Create a new lazy overlay with the given anchor hash and block handles.

§Arguments
  • anchor_hash - The persisted ancestor hash this overlay is built on top of
  • blocks - Deferred trie data handles for in-memory blocks (newest to oldest)
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pub const fn anchor_hash(&self) -> B256

Returns the anchor hash this overlay is built on.

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pub const fn num_blocks(&self) -> usize

Returns the number of in-memory blocks this overlay covers.

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pub fn is_computed(&self) -> bool

Returns true if the overlay has already been computed.

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pub fn get(&self) -> &TrieInputSorted

Returns the computed trie input, computing it if necessary.

The first call triggers computation (which may block waiting for deferred data). Subsequent calls return the cached result immediately.

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pub fn as_overlay(&self) -> (Arc<TrieUpdatesSorted>, Arc<HashedPostStateSorted>)

Returns the overlay as (nodes, state) tuple for use with OverlayStateProviderFactory.

Trait Implementations§

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impl Clone for LazyOverlay

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fn clone(&self) -> LazyOverlay

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for LazyOverlay

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

Formats the value using the given formatter. Read more

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🔬This is a nightly-only experimental API. (clone_to_uninit #126799)
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Size: 64 bytes