pezkuwichain/pezkuwi-subxt
1
0
Fork 0
mirror of https://github.com/pezkuwichain/pezkuwi-subxt.git synced 2026-06-12 07:41:08 +00:00
Code Issues Packages Projects Releases Wiki Activity

Removed From<H256> bound (#790)

Browse Source
This commit is contained in:
Arkadiy Paronyan
2018-09-23 20:45:06 +02:00
committed by Robert Habermeier
parent f71200ee3c
commit da991efd5f
5 changed files with 24 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files
substrate/core/client/src/cht.rs
+11 -10
View File
@@ -65,16 +65,15 @@ pub fn compute_root<Header, Hasher, I>(
cht_size: u64,
cht_num: Header::Number,
hashes: I,
) -> Option<Header::Hash>
) -> Option<Hasher::Out>
where
Header: HeaderT,
Header::Hash: From<Hasher::Out>,
Hasher: hashdb::Hasher,
Hasher::Out: Ord + Encodable,
I: IntoIterator<Item=Option<Header::Hash>>,
{
build_pairs::<Header, I>(cht_size, cht_num, hashes)
.map(|pairs| triehash::trie_root::<Hasher, _, _, _>(pairs).into())
.map(|pairs| triehash::trie_root::<Hasher, _, _, _>(pairs))
}
/// Build CHT-based header proof.
@@ -113,17 +112,19 @@ pub fn check_proof<Header, Hasher, Codec>(
) -> ClientResult<()>
where
Header: HeaderT,
Header::Hash: From<H256>,
Header::Hash: AsRef<[u8]>,
Hasher: hashdb::Hasher,
Hasher::Out: Ord + Encodable + HeapSizeOf + From<Header::Hash>,
Hasher::Out: Ord + Encodable + HeapSizeOf,
Codec: NodeCodec<Hasher>,
{
let mut root: Hasher::Out = Default::default();
root.as_mut().copy_from_slice(local_root.as_ref());
let local_cht_key = encode_cht_key(local_number);
let local_cht_value = read_proof_check::<Hasher, Codec>(local_root.into(), remote_proof,
let local_cht_value = read_proof_check::<Hasher, Codec>(root, remote_proof,
&local_cht_key).map_err(|e| ClientError::from(e))?;
let local_cht_value = local_cht_value.ok_or_else(|| ClientErrorKind::InvalidHeaderProof)?;
let local_hash: Header::Hash = decode_cht_value(&local_cht_value).ok_or_else(|| ClientErrorKind::InvalidHeaderProof)?;
match local_hash == remote_hash {
let local_hash = decode_cht_value(&local_cht_value).ok_or_else(|| ClientErrorKind::InvalidHeaderProof)?;
match &local_hash[..] == remote_hash.as_ref() {
true => Ok(()),
false => Err(ClientErrorKind::InvalidHeaderProof.into()),
}
@@ -203,9 +204,9 @@ fn encode_cht_value<Hash: AsRef<[u8]>>(hash: Hash) -> Vec<u8> {
}
/// Convert CHT value into block header hash.
pub fn decode_cht_value<Hash: From<H256>>(value: &[u8]) -> Option<Hash> {
pub fn decode_cht_value(value: &[u8]) -> Option<H256> {
match value.len() {
32 => Some(H256::from_slice(&value[0..32]).into()),
32 => Some(H256::from_slice(&value[0..32])),
_ => None,
}