Removes unnecessary blank impl for Backend (#8897)

* Removes unnecessary blank impl for Backend

This commit removes a from my perspective unneccessary implementation
for &T which implement Backend.

The current implementation exists (again from my perspective) solely
to satisfy a methods &mut self parameters (i.e. allows to satisfy
this for an & reference via using &mut &Backend).

As all implementors use a RefCell with borrow_mut() where actually
calling the mentioned &mut self method and then forwad to the
{} implementation of either TrieBackend or ProvingBackend, the
current &mut self seems to be not needed.

* Fixed tests client
This commit is contained in:
Frederik Schulz
2021-05-25 21:50:12 +02:00
committed by GitHub
parent ec409615a3
commit ad76ac798e
10 changed files with 12 additions and 92 deletions
@@ -220,7 +220,7 @@ where
Box::new(sp_state_machine::ExecutionError::UnableToGenerateProof) as Box<dyn sp_state_machine::Error>
)?;
let state_runtime_code = sp_state_machine::backend::BackendRuntimeCode::new(&trie_state);
let state_runtime_code = sp_state_machine::backend::BackendRuntimeCode::new(trie_state);
// It is important to extract the runtime code here before we create the proof
// recorder.
let runtime_code = state_runtime_code.runtime_code()