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Implement change trie for child trie. (#3122)

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* Initial implementation, some redundancy is awkward and there is
some useless computation (but there is a pending pr for that).
Next are tests.

* Minimal tests and fix extend child.

* implement iterator for change child trie.

* prune child trie.

* Fix pruning test.

* bump spec version.

* Avoid empty child trie (could also be checked before)

* tabs.

* Fix child digest overriding each others.

* Restore doc deleted on merge.

* Check correct child value on extrinsics build.

* Revert runtime version update.
This commit is contained in:
cheme
2019-09-02 11:10:42 +02:00
committed by Svyatoslav Nikolsky
parent 06658e0c3c
commit e3d0c60a31
23 changed files with 670 additions and 138 deletions
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substrate/core/network/src/chain.rs
+4 -2
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@@ -64,6 +64,7 @@ pub trait Client<Block: BlockT>: Send + Sync {
last: Block::Hash,
min: Block::Hash,
max: Block::Hash,
storage_key: Option<&StorageKey>,
key: &StorageKey
) -> Result<ChangesProof<Block::Header>, Error>;
@@ -136,9 +137,10 @@ impl<B, E, Block, RA> Client<Block> for SubstrateClient<B, E, Block, RA> where
last: Block::Hash,
min: Block::Hash,
max: Block::Hash,
key: &StorageKey
storage_key: Option<&StorageKey>,
key: &StorageKey,
) -> Result<ChangesProof<Block::Header>, Error> {
(self as &SubstrateClient<B, E, Block, RA>).key_changes_proof(first, last, min, max, key)
(self as &SubstrateClient<B, E, Block, RA>).key_changes_proof(first, last, min, max, storage_key, key)
}
fn is_descendent_of(&self, base: &Block::Hash, block: &Block::Hash) -> Result<bool, Error> {