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Introduce prefixed storage with enumeration (#4185)

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* Introduce storage_next allowing iteration.  (without childtries)

* Implement prefixed storage

* impl cache in client_storage_cache (needs test)

* switch overlay change to btreemap

* Revert "impl cache in client_storage_cache"

This reverts commit c91a4848916eba87184b3dc4722cea81aec9339d.

the storage cache cannot be used this way

* Revert "Implement prefixed storage"

This reverts commit 4931088126a427082d7310ed7e83b8eea966bc20.

* Impl StoragePrefixedMap for all map storages

* remove comment

* Move all overlays to BTreeMap

* btreemap iteration improvment

* impl for child tries

* impl tests for childs

* fix

* remove cache comment

* Fix grumble
This commit is contained in:
thiolliere
2019-12-09 20:55:11 +01:00
committed by Bastian Köcher
parent fb1eb9d9e4
commit e5b6935c2a
25 changed files with 711 additions and 58 deletions
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substrate/primitives/state-machine/src/testing.rs
+2 -2
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@@ -16,7 +16,7 @@
//! Test implementation for Externalities.
use std::{collections::HashMap, any::{Any, TypeId}};
use std::{collections::{HashMap, BTreeMap}, any::{Any, TypeId}};
use hash_db::Hasher;
use crate::{
backend::{InMemory, Backend}, OverlayedChanges,
@@ -35,7 +35,7 @@ use primitives::{
use codec::Encode;
use externalities::{Extensions, Extension};
type StorageTuple = (HashMap<Vec<u8>, Vec<u8>>, HashMap<Vec<u8>, HashMap<Vec<u8>, Vec<u8>>>);
type StorageTuple = (BTreeMap<Vec<u8>, Vec<u8>>, HashMap<Vec<u8>, BTreeMap<Vec<u8>, Vec<u8>>>);
/// Simple HashMap-based Externalities impl.
pub struct TestExternalities<H: Hasher<Out=H256>=Blake2Hasher, N: ChangesTrieBlockNumber=u64> {