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Fetching changes proof from remote nodes (#769)

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* changes_trie

* changs_trie: continue

* changes_trie: adding tests

* fixed TODO

* removed obsolete ExtrinsicChanges

* encodable ChangesTrieConfiguration

* removed polkadot fle

* fixed grumbles

* ext_storage_changes_root returns u32

* moved changes trie root to digest

* removed commented code

* read storage values from native code

* fixed grumbles

* fixed grumbles

* missing comma

* key changes proof generation + query

* fix grumbles

* check that changes trie config is not changed by block.finalize()

* fixed changes trie config check
This commit is contained in:
Svyatoslav Nikolsky
2018-09-29 11:47:29 +03:00
committed by Gav Wood
parent fdfd4672c1
commit c54350661d
20 changed files with 753 additions and 107 deletions
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substrate/core/network/src/chain.rs
+20 -1
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@@ -18,7 +18,7 @@
use client::{self, Client as SubstrateClient, ImportResult, ClientInfo, BlockStatus, BlockOrigin, CallExecutor};
use client::error::Error;
use runtime_primitives::traits::{Block as BlockT, Header as HeaderT};
use runtime_primitives::traits::{Block as BlockT, Header as HeaderT, NumberFor};
use runtime_primitives::generic::BlockId;
use runtime_primitives::bft::Justification;
use primitives::{Blake2Hasher};
@@ -61,6 +61,15 @@ pub trait Client<Block: BlockT>: Send + Sync {
/// Get method execution proof.
fn execution_proof(&self, block: &Block::Hash, method: &str, data: &[u8]) -> Result<(Vec<u8>, Vec<Vec<u8>>), Error>;
/// Get key changes proof.
fn key_changes_proof(
&self,
first: Block::Hash,
last: Block::Hash,
max: Block::Hash,
key: &[u8]
) -> Result<(NumberFor<Block>, Vec<Vec<u8>>), Error>;
}
impl<B, E, Block> Client<Block> for SubstrateClient<B, E, Block> where
@@ -116,4 +125,14 @@ impl<B, E, Block> Client<Block> for SubstrateClient<B, E, Block> where
fn execution_proof(&self, block: &Block::Hash, method: &str, data: &[u8]) -> Result<(Vec<u8>, Vec<Vec<u8>>), Error> {
(self as &SubstrateClient<B, E, Block>).execution_proof(&BlockId::Hash(block.clone()), method, data)
}
fn key_changes_proof(
&self,
first: Block::Hash,
last: Block::Hash,
max: Block::Hash,
key: &[u8]
) -> Result<(NumberFor<Block>, Vec<Vec<u8>>), Error> {
(self as &SubstrateClient<B, E, Block>).key_changes_proof(first, last, max, key)
}
}