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Remove footgun around session keys/handlers (#3949)

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* Remove footgun around session keys/handlers

- `OpaqueKeys` now has an associated type `KeyTypeIdProviders`. This can
be used in the runtime as input for `SessionHandler` from the session
trait.
- `impl_opaque_keys` now works with modules and extracts the `KeyTypeId`
from the module directly.
- Added some checks to the `session` storage initialization that checks
that the `SessionHandler` and `Keys` use the same number of keys and
that the order is equal.

* Update core/sr-primitives/src/traits.rs
This commit is contained in:
Bastian Köcher
2019-10-29 00:58:58 +01:00
committed by GitHub
parent 06433c9889
commit 057636fd1f
21 changed files with 150 additions and 100 deletions
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substrate/srml/session/src/historical.rs
+2 -4
View File
@@ -182,11 +182,9 @@ impl<T: Trait> ProvingTrie<T> {
// map each key to the owner index.
for key_id in T::Keys::key_ids() {
let key = keys.get_raw(key_id);
let key = keys.get_raw(*key_id);
let res = (key_id, key).using_encoded(|k|
i.using_encoded(|v|
trie.insert(k, v)
)
i.using_encoded(|v| trie.insert(k, v))
);
let _ = res.map_err(|_| "failed to insert into trie")?;