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Fix compact proof decoding unaccessed last child trie. (#9715)

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* fix no child proof attached but root included.

* small stress test for proof of child tries.

* rust fmt
This commit is contained in:
cheme
2021-09-07 18:21:42 +02:00
committed by GitHub
parent 16144e7404
commit 0a8b3ddedc
3 changed files with 105 additions and 1 deletions
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substrate/primitives/trie/src/trie_codec.rs
+2 -1
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@@ -161,8 +161,9 @@ where
}
let mut previous_extracted_child_trie = None;
let mut nodes_iter = nodes_iter.peekable();
for child_root in child_tries.into_iter() {
if previous_extracted_child_trie.is_none() {
if previous_extracted_child_trie.is_none() && nodes_iter.peek().is_some() {
let (top_root, _) =
trie_db::decode_compact_from_iter::<L, _, _, _>(db, &mut nodes_iter)?;
previous_extracted_child_trie = Some(top_root);