Omniscia Nexera Protocol Audit
VerifierManager Code Style Findings
VerifierManager Code Style Findings
VMR-01C: Inexistent Event Indexing
| Type | Severity | Location |
|---|---|---|
| Language Specific |  | VerifierManager.sol:L26, L27 |
Description:
The FragmentPending, and FragmentResolved events of the VerifierManager contract do not contain any indexed arguments.
Example:
26event FragmentPending(uint256 id);27event FragmentResolved(uint256 id, bool accept);Recommendation:
We advise them to be introduced, particularly in relation to the id to ensure off-chain processes can optimally filter these events.
Alleviation (fb50b5c39665f7df086b2de1fdbf93ba2d836bf9):
The indexed keyword has been properly introduced to the id values as advised, optimizing their off-chain usability.
VMR-02C: Loop Iterator Optimization
| Type | Severity | Location |
|---|---|---|
| Gas Optimization | | VerifierManager.sol:L89 |
Description:
The linked for loop increments / decrements the iterator "safely" due to Solidity's built-in safe arithmetics (post-0.8.X).
Example:
89for (uint256 i; i < tags.length; i++) {Recommendation:
We advise the increment / decrement operation to be performed in an unchecked code block as the last statement within the for loop to optimize its execution cost.
Alleviation (fb50b5c39665f7df086b2de1fdbf93ba2d836bf9):
The referenced loop iterator's increment statement has been relocated at the end of the for loop's body and has been unwrapped in an unchecked code block, optimizing its gas cost.