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perf: avoid one vec alloc (#20717)

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Co-authored-by: weixie.cui <weixie.cui@okg.com>
This commit is contained in:
cui
2026-01-05 20:40:03 +08:00
committed by GitHub
parent 9ca5cffaee
commit 5265079654
1 changed files with 8 additions and 5 deletions
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13
crates/chain-state/src/memory_overlay.rs
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@@ -49,11 +49,14 @@ impl<'a, N: NodePrimitives> MemoryOverlayStateProviderRef<'a, N> {
/// Return lazy-loaded trie state aggregated from in-memory blocks.
fn trie_input(&self) -> &TrieInput {
self.trie_input.get_or_init(|| {
let bundles: Vec<_> =
self.in_memory.iter().rev().map(|block| block.trie_data()).collect();
TrieInput::from_blocks_sorted(
bundles.iter().map(|data| (data.hashed_state.as_ref(), data.trie_updates.as_ref())),
)
let mut input = TrieInput::default();
// Iterate from oldest to newest
for block in self.in_memory.iter().rev() {
let data = block.trie_data();
input.nodes.extend_from_sorted(&data.trie_updates);
input.state.extend_from_sorted(&data.hashed_state);
}
input
})
}