IOU Code Style Findings

IOU-01C: Variable Mutability Specifier (Immutable)

Type	Severity	Location
Gas Optimization		IOU.sol:L9

Description:

The linked variable is assigned to only once during the contract's constructor.

Example:

Copy
9uint8 private iouDecimals;
10
11constructor(
12    string memory _name,
13    string memory _symbol,
14    uint8 _decimals
15) ERC20(_name, _symbol) ERC20Permit(_name) {
16    iouDecimals = _decimals;
17}

Recommendation:

We advise it to be set as immutable greatly optimizing its read-access gas cost.

Alleviation:

The variable has been properly set as immutable optimizing the codebase.