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Less slices (#9176)

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* Less slices

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
This commit is contained in:
Squirrel
2021-06-23 13:33:48 +01:00
committed by GitHub
parent 7b50bbb9bf
commit 07449840bd
11 changed files with 41 additions and 46 deletions
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substrate/primitives/state-machine/src/changes_trie/prune.rs
+3 -3
View File
@@ -66,9 +66,9 @@ pub fn prune<H: Hasher, Number: BlockNumber, F: FnMut(H::Out)>(
);
let child_prefix = ChildIndex::key_neutral_prefix(block.clone());
let mut children_roots = Vec::new();
trie_storage.for_key_values_with_prefix(&child_prefix, |key, value| {
if let Ok(InputKey::ChildIndex::<Number>(_trie_key)) = Decode::decode(&mut &key[..]) {
if let Ok(value) = <Vec<u8>>::decode(&mut &value[..]) {
trie_storage.for_key_values_with_prefix(&child_prefix, |mut key, mut value| {
if let Ok(InputKey::ChildIndex::<Number>(_trie_key)) = Decode::decode(&mut key) {
if let Ok(value) = <Vec<u8>>::decode(&mut value) {
let mut trie_root = <H as Hasher>::Out::default();
trie_root.as_mut().copy_from_slice(&value[..]);
children_roots.push(trie_root);