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Refactor away from opaque hashes (#5226)

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* System.BlockHash

* Fix hash

* Introduce K/V iteration in all _concat maps

Also move across:
- System.Account (blake2_128_concat)
- Balances.Locks (twox_64_concat)
- ElectionsPhragmen.VotesOf (twox_64_concat)
- ElectionsPhragmen.StakeOf (twox_64_concat)
- Identity.IdentityOf (twox_64_concat)
- Identity.SubsOf (twox_64_concat)
- Society.Payouts (twox_64_concat)
- Session.NextKeys (twox_64_concat)
- Identity.SuperOf (blake2_128_concat)
- Session.KeyOwner (blake2_128_concat)
- Society.SuspendedCandidates (twox_64_concat)
- Society.SuspendedMembers (twox_64_concat)
- Society.Vouching (twox_64_concat)
- Society.Strikes (twox_64_concat)
- System.EventTopics
- Balances.Account

* Build fixes

* Ensure migration happens in correct order

* Staking.*

* Vesting.* Offences.*

* Democracy.*

* Babe.* Collective.*

* Grandpa.*

* Assets.* Benchmark.* Contracts.* Elections.* Asset.* Nicks.*

Also introduce real account list

* ImOnline.*

* Treasury.*

* Recovery.*

* Final bits.

* Docs

* Fix one test

* Fix test

* All passing except the UI tests

* Remove linked_map part 1

* Remove linked_map

* Some iterator utils for double maps.

* Remove old migrations

* Introduce tombstone for LinkedMap type

* Migration for genesis hash

* Fix build

* Fix hash

* Rename Map is_linked -> unused, keeping backwards compat (#5256)

* Update frame/balances/src/lib.rs

Co-Authored-By: Shawn Tabrizi <shawntabrizi@gmail.com>

* Update frame/elections/src/lib.rs

Co-Authored-By: Shawn Tabrizi <shawntabrizi@gmail.com>

* Remove old migration code.

* Update frame/system/src/lib.rs

Co-Authored-By: Shawn Tabrizi <shawntabrizi@gmail.com>

* Update bin/node/runtime/src/lib.rs

Co-Authored-By: Shawn Tabrizi <shawntabrizi@gmail.com>

* Fix hash

* fix session migration

* Fix watning

Co-authored-by: Jaco Greeff <jacogr@gmail.com>
Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>
Co-authored-by: Robert Habermeier <rphmeier@gmail.com>
This commit is contained in:
Gavin Wood
2020-03-16 23:19:53 +01:00
committed by GitHub
parent 846a9ce8c6
commit af9083f53b
94 changed files with 1111 additions and 2020 deletions
Download Patch File Download Diff File Expand all files Collapse all files
substrate/frame/support/src/hash.rs
+31
View File
@@ -28,6 +28,7 @@ pub trait Hashable: Sized {
fn twox_128(&self) -> [u8; 16];
fn twox_256(&self) -> [u8; 32];
fn twox_64_concat(&self) -> Vec<u8>;
fn identity(&self) -> Vec<u8>;
}
impl<T: Codec> Hashable for T {
@@ -49,6 +50,7 @@ impl<T: Codec> Hashable for T {
fn twox_64_concat(&self) -> Vec<u8> {
self.using_encoded(Twox64Concat::hash)
}
fn identity(&self) -> Vec<u8> { self.encode() }
}
/// Hasher to use to hash keys to insert to storage.
@@ -57,6 +59,25 @@ pub trait StorageHasher: 'static {
fn hash(x: &[u8]) -> Self::Output;
}
/// Hasher to use to hash keys to insert to storage.
pub trait ReversibleStorageHasher: StorageHasher {
fn reverse(x: &[u8]) -> &[u8];
}
/// Store the key directly.
pub struct Identity;
impl StorageHasher for Identity {
type Output = Vec<u8>;
fn hash(x: &[u8]) -> Vec<u8> {
x.to_vec()
}
}
impl ReversibleStorageHasher for Identity {
fn reverse(x: &[u8]) -> &[u8] {
x
}
}
/// Hash storage keys with `concat(twox64(key), key)`
pub struct Twox64Concat;
impl StorageHasher for Twox64Concat {
@@ -69,6 +90,11 @@ impl StorageHasher for Twox64Concat {
.collect::<Vec<_>>()
}
}
impl ReversibleStorageHasher for Twox64Concat {
fn reverse(x: &[u8]) -> &[u8] {
&x[8..]
}
}
/// Hash storage keys with `concat(blake2_128(key), key)`
pub struct Blake2_128Concat;
@@ -82,6 +108,11 @@ impl StorageHasher for Blake2_128Concat {
.collect::<Vec<_>>()
}
}
impl ReversibleStorageHasher for Blake2_128Concat {
fn reverse(x: &[u8]) -> &[u8] {
&x[16..]
}
}
/// Hash storage keys with blake2 128
pub struct Blake2_128;