Use IWrappedNativeToken.deposit() can save some gas

[code423n4]

Handle

WatchPug

Vulnerability details

To wrap native token, using IWrappedNativeToken.deposit() is more gas efficient than .call{value: msg.value}().

https://github.com/code-423n4/2021-12-amun/blob/cf890dedf2e43ec787e8e5df65726316fda134a1/contracts/basket/contracts/singleJoinExit/EthSingleTokenJoin.sol#L26-L26

address(INTERMEDIATE_TOKEN).call{value: msg.value}("");

https://github.com/code-423n4/2021-12-amun/blob/cf890dedf2e43ec787e8e5df65726316fda134a1/contracts/basket/contracts/singleJoinExit/EthSingleTokenJoinV2.sol#L26-L26

address(INTERMEDIATE_TOKEN).call{value: msg.value}("");

Recommendation

Change to:

IWrappedNativeToken(address(INTERMEDIATE_TOKEN)).deposit{ value: msg.value }();