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Check storage_key for validity (#2316)

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* Intro `ChildStorageKey` for checked child keys

* Get rid of Into in Externalities trait

* Use Cow in ChildStorageKey

* Fix tests for state-machine.

* Clean

* child_storage_root always return a value

* Don't return Option from Ext::child_storage_root

* Return 42 in child_storage_root

* Return CHILD_STORAGE_KEY_PREFIX from trie id gen

* Bump spec and impl version.

* Require `:default:` in `is_child_trie_key_valid`

* Add `default:` prefix.

* Introduce `into_owned` for `ChildStorageKey`.

* Add documentation.

* Fix state-machine tests

* Remove outdated TODO

I check out with Emeric and he is ok with that

* child_storage_root is infailable

* Nit

* Move assert after check.

* Apply suggestions from @DemiMarie-parity

Co-Authored-By: pepyakin <s.pepyakin@gmail.com>

* Formatting nit in core/executor/src/wasm_executor.rs

Co-Authored-By: DemiMarie-parity <48690212+DemiMarie-parity@users.noreply.github.com>

* Formatting nits from @thiolliere
This commit is contained in:
Sergei Pepyakin
2019-04-23 18:14:45 +02:00
committed by GitHub
parent 648dcc2728
commit 517746bd62
12 changed files with 286 additions and 123 deletions
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substrate/srml/contract/src/tests.rs
+7 -1
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@@ -123,7 +123,13 @@ static KEY_COUNTER: AtomicUsize = AtomicUsize::new(0);
pub struct DummyTrieIdGenerator;
impl TrieIdGenerator<u64> for DummyTrieIdGenerator {
fn trie_id(account_id: &u64) -> TrieId {
let mut res = KEY_COUNTER.fetch_add(1, Ordering::Relaxed).to_le_bytes().to_vec();
use substrate_primitives::storage::well_known_keys;
// TODO: see https://github.com/paritytech/substrate/issues/2325
let mut res = vec![];
res.extend_from_slice(well_known_keys::CHILD_STORAGE_KEY_PREFIX);
res.extend_from_slice(b"default:");
res.extend_from_slice(&KEY_COUNTER.fetch_add(1, Ordering::Relaxed).to_le_bytes());
res.extend_from_slice(&account_id.to_le_bytes());
res
}