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contracts: Add test to verify unique trie ids (#10914)

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* Add test to verify unique trie ids

* Rename trie_seed to nonce

* Rename AccountCounter -> Nonce

* fmt
This commit is contained in:
Alexander Theißen
2022-03-10 12:28:00 +01:00
committed by GitHub
parent 18aef02e87
commit bef9b79d7b
6 changed files with 162 additions and 56 deletions
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substrate/frame/contracts/src/storage.rs
+3 -4
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@@ -290,10 +290,9 @@ where
weight_limit.saturating_sub(weight_per_key.saturating_mul(remaining_key_budget as Weight))
}
/// This generator uses inner counter for account id and applies the hash over `AccountId +
/// accountid_counter`.
pub fn generate_trie_id(account_id: &AccountIdOf<T>, seed: u64) -> TrieId {
let buf: Vec<_> = account_id.as_ref().iter().chain(&seed.to_le_bytes()).cloned().collect();
/// Generates a unique trie id by returning `hash(account_id ++ nonce)`.
pub fn generate_trie_id(account_id: &AccountIdOf<T>, nonce: u64) -> TrieId {
let buf: Vec<_> = account_id.as_ref().iter().chain(&nonce.to_le_bytes()).cloned().collect();
T::Hashing::hash(&buf).as_ref().into()
}