Snowman Merkle Airdrop

Description:

The Snowman::SM__NotAllowed is declared but it is never used in any revert statement or logic branch. This leads to dead code and missed opportunities for explicit error handling, reducing code clarity and potentially failure conditions.

Likelihood:

Low - While not exploitable by itself, this issue commonly arises during development and may be overlooked during audits.

Impact:

Low - The unused error may indicate that an important validation or revert condition was forgotten, which could lead to logical errors or unexpected behavior if the contract does not properly handle failure states.

Recommended Mitigation:

Remove unused error declarations to reduce dead code, or use them appropriately in require or revert statements to enforce smart contract invariants.