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Support blake2_128Concat key hashing (#60)

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This commit is contained in:
Andrew Jones
2020-01-06 13:22:57 +00:00
committed by GitHub
parent 3aa3598114
commit 80663ec6e3
1 changed files with 8 additions and 0 deletions
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src/metadata.rs
+8
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@@ -237,6 +237,14 @@ impl<K: Encode, V: Decode + Clone> StorageMap<K, V> {
let encoded_key = key.encode();
let hash = match self.hasher {
StorageHasher::Blake2_128 => sp_core::blake2_128(&encoded_key).to_vec(),
StorageHasher::Blake2_128Concat => {
// copied from substrate Blake2_128Concat::hash since StorageHasher is not public
sp_core::blake2_128(&encoded_key)
.iter()
.chain(&encoded_key)
.cloned()
.collect::<Vec<_>>()
},
StorageHasher::Blake2_256 => sp_core::blake2_256(&encoded_key).to_vec(),
StorageHasher::Twox128 => sp_core::twox_128(&encoded_key).to_vec(),
StorageHasher::Twox256 => sp_core::twox_256(&encoded_key).to_vec(),