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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/testing.rs
+5 -5
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@@ -34,13 +34,12 @@ use sp_core::{
well_known_keys::{CHANGES_TRIE_CONFIG, CODE, HEAP_PAGES, is_child_storage_key},
Storage,
},
Blake2Hasher,
};
use codec::Encode;
use sp_externalities::{Extensions, Extension};
/// Simple HashMap-based Externalities impl.
pub struct TestExternalities<H: Hasher = Blake2Hasher, N: ChangesTrieBlockNumber = u64>
pub struct TestExternalities<H: Hasher, N: ChangesTrieBlockNumber = u64>
where
H::Out: codec::Codec,
{
@@ -198,11 +197,12 @@ impl<H, N> sp_externalities::ExtensionStore for TestExternalities<H, N> where
mod tests {
use super::*;
use sp_core::traits::Externalities;
use sp_runtime::traits::BlakeTwo256;
use hex_literal::hex;
#[test]
fn commit_should_work() {
let mut ext = TestExternalities::<Blake2Hasher, u64>::default();
let mut ext = TestExternalities::<BlakeTwo256, u64>::default();
let mut ext = ext.ext();
ext.set_storage(b"doe".to_vec(), b"reindeer".to_vec());
ext.set_storage(b"dog".to_vec(), b"puppy".to_vec());
@@ -213,7 +213,7 @@ mod tests {
#[test]
fn set_and_retrieve_code() {
let mut ext = TestExternalities::<Blake2Hasher, u64>::default();
let mut ext = TestExternalities::<BlakeTwo256, u64>::default();
let mut ext = ext.ext();
let code = vec![1, 2, 3];
@@ -225,6 +225,6 @@ mod tests {
#[test]
fn check_send() {
fn assert_send<T: Send>() {}
assert_send::<TestExternalities::<Blake2Hasher, u64>>();
assert_send::<TestExternalities::<BlakeTwo256, u64>>();
}
}