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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/client/api/src/call_executor.rs
+4 -4
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@@ -19,7 +19,7 @@
use std::{panic::UnwindSafe, result, cell::RefCell};
use codec::{Encode, Decode};
use sp_runtime::{
generic::BlockId, traits::{Block as BlockT, HasherFor},
generic::BlockId, traits::{Block as BlockT, HashFor},
};
use sp_state_machine::{
OverlayedChanges, ExecutionManager, ExecutionStrategy, StorageProof,
@@ -89,7 +89,7 @@ pub trait CallExecutor<B: BlockT> {
/// Execute a call to a contract on top of given state, gathering execution proof.
///
/// No changes are made.
fn prove_at_state<S: sp_state_machine::Backend<HasherFor<B>>>(
fn prove_at_state<S: sp_state_machine::Backend<HashFor<B>>>(
&self,
mut state: S,
overlay: &mut OverlayedChanges,
@@ -107,9 +107,9 @@ pub trait CallExecutor<B: BlockT> {
/// Execute a call to a contract on top of given trie state, gathering execution proof.
///
/// No changes are made.
fn prove_at_trie_state<S: sp_state_machine::TrieBackendStorage<HasherFor<B>>>(
fn prove_at_trie_state<S: sp_state_machine::TrieBackendStorage<HashFor<B>>>(
&self,
trie_state: &sp_state_machine::TrieBackend<S, HasherFor<B>>,
trie_state: &sp_state_machine::TrieBackend<S, HashFor<B>>,
overlay: &mut OverlayedChanges,
method: &str,
call_data: &[u8]