pezkuwichain/pezkuwi-subxt
1
0
Fork 0
mirror of https://github.com/pezkuwichain/pezkuwi-subxt.git synced 2026-04-27 23:18:01 +00:00
Code Issues Packages Projects Releases Wiki Activity

chainHead: Add support for storage closest merkle descendant #14818 (#1153)

Browse Source 
This PR adds support for fetching the closest merkle value of some key.


Builds on top of
- https://github.com/paritytech/trie/pull/199

Migrates https://github.com/paritytech/substrate/pull/14818 to the
monorepo.
Closes: https://github.com/paritytech/substrate/issues/14550
Closes: https://github.com/paritytech/polkadot-sdk/issues/1506

// @paritytech/subxt-team

---------

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>
Co-authored-by: Sebastian Kunert <skunert49@gmail.com>
This commit is contained in:
Alexandru Vasile
2023-09-18 13:54:44 +03:00
committed by GitHub
parent 20052e1675
commit 5d346643ca
15 changed files with 449 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files
substrate/primitives/state-machine/src/backend.rs
+12 -2
View File
@@ -30,7 +30,7 @@ use sp_core::storage::{ChildInfo, StateVersion, TrackedStorageKey};
#[cfg(feature = "std")]
use sp_core::traits::RuntimeCode;
use sp_std::vec::Vec;
use sp_trie::PrefixedMemoryDB;
use sp_trie::{MerkleValue, PrefixedMemoryDB};
/// A struct containing arguments for iterating over the storage.
#[derive(Default)]
@@ -195,7 +195,17 @@ pub trait Backend<H: Hasher>: sp_std::fmt::Debug {
/// Get keyed storage value hash or None if there is nothing associated.
fn storage_hash(&self, key: &[u8]) -> Result<Option<H::Out>, Self::Error>;
/// Get keyed child storage or None if there is nothing associated.
/// Get the merkle value or None if there is nothing associated.
fn closest_merkle_value(&self, key: &[u8]) -> Result<Option<MerkleValue<H::Out>>, Self::Error>;
/// Get the child merkle value or None if there is nothing associated.
fn child_closest_merkle_value(
&self,
child_info: &ChildInfo,
key: &[u8],
) -> Result<Option<MerkleValue<H::Out>>, Self::Error>;
/// Get child keyed child storage or None if there is nothing associated.
fn child_storage(
&self,
child_info: &ChildInfo,