GAS OPTIMSATION

• Your task is to edit and optimise the Gas.sol contract.
• You cannot edit the tests &
• All the tests must pass.
• You can change the functionality of the contract as long as the tests pass.
• Try to get the gas usage as low as possible.

To run tests & gas report with verbatim trace

Run: forge test --gas-report -vvvv

To run tests & gas report

Run: forge test --gas-report

To run a specific test

RUN:forge test --match-test {TESTNAME} -vvvv EG: forge test --match-test test_onlyOwner -vvvv

• after changing the order : Deployment Cost: 2431979 | Deployment Size :11987

• erase getPaymentHistory() fuction because by default we already have the public array variable declared as a getter.

• erase senderOfTx to write msg.sender directly.

• erase the modifier onlyAdminOrOwner because we already ahve the contract already inherit of the ownable contract

• change the checkIfWhiteListed moidifier

• change the order of the struct element