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Remove BlockNumber <-> u64 conversions from light-client related code (#2666)

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* Remove As usage from CHT

* Remove As usage from CHT (continue)

* Restrict BN <-> int conversions in CT

* more BN <-> u64 conversions removed

* upd spec_version

* Apply suggestions from code review

Co-Authored-By: Gavin Wood <github@gavwood.com>

* Apply suggestions from code review

Co-Authored-By: Gavin Wood <github@gavwood.com>

* more grumbles

* fix last grumbles + compilation

* too long lines

* too long lines
This commit is contained in:
Svyatoslav Nikolsky
2019-05-28 16:07:16 +03:00
committed by Gavin Wood
parent 25b88f1a1f
commit 549d9e1da1
41 changed files with 1087 additions and 654 deletions
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substrate/core/client/src/backend.rs
+9 -3
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@@ -127,7 +127,7 @@ pub trait Backend<Block, H>: AuxStore + Send + Sync where
/// Associated state backend type.
type State: StateBackend<H>;
/// Changes trie storage.
type ChangesTrieStorage: PrunableStateChangesTrieStorage<H>;
type ChangesTrieStorage: PrunableStateChangesTrieStorage<Block, H>;
/// Begin a new block insertion transaction with given parent block id.
/// When constructing the genesis, this is called with all-zero hash.
@@ -177,9 +177,15 @@ pub trait Backend<Block, H>: AuxStore + Send + Sync where
}
/// Changes trie storage that supports pruning.
pub trait PrunableStateChangesTrieStorage<H: Hasher>: StateChangesTrieStorage<H> {
pub trait PrunableStateChangesTrieStorage<Block: BlockT, H: Hasher>:
StateChangesTrieStorage<H, NumberFor<Block>>
{
/// Get number block of oldest, non-pruned changes trie.
fn oldest_changes_trie_block(&self, config: &ChangesTrieConfiguration, best_finalized: u64) -> u64;
fn oldest_changes_trie_block(
&self,
config: &ChangesTrieConfiguration,
best_finalized: NumberFor<Block>,
) -> NumberFor<Block>;
}
/// Mark for all Backend implementations, that are making use of state data, stored locally.