Submission Details
Severity:
Using `require` instead of custom errors, leads to gas inefficiency.
Description
All of the error handling in the KittyConnect contract is done using the require function. Since Solidity v0.8.4, custom reverts were presented, which are more gas efficient than using require.
Impact
Leads to spending more gas than necessary.
Tools Used
Manual Review
Recommendations
Read about custom errors in this solidity blog, and rewrite them with the new syntax.
Rewards breakdown
nSLOC
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