The WellUpgradeable contract fails to meet the EIP-1822 standard, potentially causing issues with upgradeability and compatibility with proxy contracts. It is explicitly mentioned in the ReadMe that src/WellUpgradeable.sol should adhere to EIP-1822.
Issue 1: Absence of updateCodeAddress Functionality:
According to the EIP-1822 standard:
WellUpgradeable.sol, which serves as a logic contract, lacks the updateCodeAddress function, which is necessary to store the Logic Contracts address at the specified storage position.
Issue 2: Incorrect proxiableUUID Implementation:
EIP-1822 mandates that the proxiableUUID function should return a specific bytes32 value derived from keccak256("PROXIABLE"). However, WellUpgradeable returns _IMPLEMENTATION_SLOT instead.
Here is the correct implementation as per the EIP-1822 Standard:
Here is the incorrect implementation in WellUpgradeable:
Issue 3: Deviation from Constructor Pattern:
EIP-1822 recommends a flexible constructor pattern for initializing the logic contract. WellUpgradeable does not follow this pattern.
Standard excerpt:
But in WellUpgradeable:
