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perf: move common_prefix_len out of loop (#5036)

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robinsdan
2023-10-16 18:15:49 +08:00
committed by GitHub
parent a60dbfdd56
commit cd67eace8c
1 changed files with 1 additions and 1 deletions
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2
crates/primitives/src/trie/hash_builder/mod.rs
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@@ -182,6 +182,7 @@ impl HashBuilder {
tracing::debug!(target: "trie::hash_builder", ?current, ?succeeding, "updating merkle tree");
let common_prefix_len = succeeding.common_prefix_length(&current);
let mut i = 0;
loop {
let span = tracing::span!(
@@ -197,7 +198,6 @@ impl HashBuilder {
let preceding_exists = !self.groups.is_empty();
let preceding_len: usize = self.groups.len().saturating_sub(1);
let common_prefix_len = succeeding.common_prefix_length(&current);
let len = std::cmp::max(preceding_len, common_prefix_len);
assert!(len < current.len());