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feat: prealloc vec (#21391)

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cui
2026-01-24 19:30:34 +08:00
committed by GitHub
parent 0aa922c4e8
commit 7feb56d5f6
1 changed files with 4 additions and 2 deletions
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6
crates/evm/evm/src/execute.rs
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@@ -75,9 +75,11 @@ pub trait Executor<DB: Database>: Sized {
where
I: IntoIterator<Item = &'a RecoveredBlock<<Self::Primitives as NodePrimitives>::Block>>,
{
let mut results = Vec::new();
let blocks_iter = blocks.into_iter();
let capacity = blocks_iter.size_hint().0;
let mut results = Vec::with_capacity(capacity);
let mut first_block = None;
for block in blocks {
for block in blocks_iter {
if first_block.is_none() {
first_block = Some(block.header().number());
}