Submission Details
Severity:
Mutable Reference to External Contract (Missed `immutable` Keyword), more gas cost per access
Summary
The EggHuntGame::eggNFT and EggHuntGame::eggVault variables are assigned once in the constructor and never updated afterward. These references are ideal candidates for the immutable keyword.
Vulnerability Details
Proof of Code:
EggstravaganzaNFT public eggNFT;
EggVault public eggVault;
Impact
Slightly higher gas cost per access and reduced clarity for readers and auditors.
Tools Used
Foundry
Slither
Recommendations
Mark EggHuntGame::eggNFT and EggHuntGame::eggVault variables as immutable.
- EggstravaganzaNFT public eggNFT;
- EggVault public eggVault;
+ EggstravaganzaNFT public immutable eggNFT;
+ EggVault public immutable eggVault;
Updates
Lead Judging Commences
m3dython about 2 months ago
Submission Judgement Published Reason: Non-acceptable severity
Assigned finding tags:
Gas optimization
Strategy to save gas and minimize transaction costs
Rewards breakdown
nSLOC
129This contest has a flat reward structure with the following payouts:
100 EXP
20 EXP
2 EXP
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