Liquid Staking

Summary

This report identifies an unused variable in the StakingPool smart contract, specifically poolIndex, which is defined but not utilized in any functions. This oversight can lead to increased deployment costs and may indicate potential deficiencies in code management and clarity. Addressing this issue by removing unused variables is recommended to enhance the contract's efficiency and maintainability. A thorough review of the codebase may also uncover additional areas for improvement.

Vulnerability Details

The StakingPool contract contains an unused variable, which can lead to unnecessary gas costs and may indicate potential issues in the contract's logic and maintainability.

Details

• Unused Variable: poolIndex

• **Code Snippet:** https://github.com/Cyfrin/2024-09-stakelink/blob/main/contracts/core/StakingPool.sol#L38

Impact

• Gas Costs: The presence of unused variables increases the deployment cost of the contract, resulting in higher gas fees for users.

• Code Clarity: Unused variables can confuse developers, suggesting incomplete or careless code, which may lead to misunderstandings during audits or further development.

Tools Used

Recommendations

• Remove Unused Variables: To improve code quality and reduce gas costs, it is recommended to remove any unused variables from the contract.

• Code Review: Conduct a comprehensive review of the contract to identify and address other similar issues.