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Reduce usage of Blake2Hasher (#5132)

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This reduces the usage of `Blake2Hasher` in the code base and replaces
it with `BlakeTwo256`. The most important change is the removal of the
custom extern function for `Blake2Hasher`. The runtime `Hash` trait is
now also simplified and directly requires that the implementing type
implements `Hashable`.
This commit is contained in:
Benjamin Kampmann
2020-03-05 08:51:03 +01:00
committed by GitHub
parent 406fa981bb
commit 5a33228ea9
64 changed files with 372 additions and 451 deletions
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substrate/primitives/state-machine/src/lib.rs
+9 -10
View File
@@ -727,9 +727,8 @@ mod tests {
use super::*;
use super::ext::Ext;
use super::changes_trie::Configuration as ChangesTrieConfig;
use sp_core::{
Blake2Hasher, map, traits::{Externalities, RuntimeCode}, storage::ChildStorageKey,
};
use sp_core::{map, traits::{Externalities, RuntimeCode}, storage::ChildStorageKey};
use sp_runtime::traits::BlakeTwo256;
#[derive(Clone)]
struct DummyCodeExecutor {
@@ -912,7 +911,7 @@ mod tests {
).unwrap();
// check proof locally
let local_result = execution_proof_check::<Blake2Hasher, u64, _>(
let local_result = execution_proof_check::<BlakeTwo256, u64, _>(
remote_root,
remote_proof,
&mut Default::default(),
@@ -935,7 +934,7 @@ mod tests {
b"abc".to_vec() => b"2".to_vec(),
b"bbb".to_vec() => b"3".to_vec()
];
let mut state = InMemoryBackend::<Blake2Hasher>::from(initial);
let mut state = InMemoryBackend::<BlakeTwo256>::from(initial);
let backend = state.as_trie_backend().unwrap();
let mut overlay = OverlayedChanges {
committed: map![
@@ -978,7 +977,7 @@ mod tests {
#[test]
fn set_child_storage_works() {
let mut state = InMemoryBackend::<Blake2Hasher>::default();
let mut state = InMemoryBackend::<BlakeTwo256>::default();
let backend = state.as_trie_backend().unwrap();
let mut overlay = OverlayedChanges::default();
let mut cache = StorageTransactionCache::default();
@@ -1025,12 +1024,12 @@ mod tests {
let remote_root = remote_backend.storage_root(::std::iter::empty()).0;
let remote_proof = prove_read(remote_backend, &[b"value2"]).unwrap();
// check proof locally
let local_result1 = read_proof_check::<Blake2Hasher, _>(
let local_result1 = read_proof_check::<BlakeTwo256, _>(
remote_root,
remote_proof.clone(),
&[b"value2"],
).unwrap();
let local_result2 = read_proof_check::<Blake2Hasher, _>(
let local_result2 = read_proof_check::<BlakeTwo256, _>(
remote_root,
remote_proof.clone(),
&[&[0xff]],
@@ -1050,13 +1049,13 @@ mod tests {
CHILD_INFO_1,
&[b"value3"],
).unwrap();
let local_result1 = read_child_proof_check::<Blake2Hasher, _>(
let local_result1 = read_child_proof_check::<BlakeTwo256, _>(
remote_root,
remote_proof.clone(),
b":child_storage:default:sub1",
&[b"value3"],
).unwrap();
let local_result2 = read_child_proof_check::<Blake2Hasher, _>(
let local_result2 = read_child_proof_check::<BlakeTwo256, _>(
remote_root,
remote_proof.clone(),
b":child_storage:default:sub1",