Omniscia Tangible Audit
MarketplaceV2 Static Analysis Findings
MarketplaceV2 Static Analysis Findings
MV2-01S: Illegible Numeric Value Representations
Type | Severity | Location |
---|---|---|
Code Style | MarketplaceV2.sol:L35, L514 |
Description:
The linked representations of numeric literals are sub-optimally represented decreasing the legibility of the codebase.
Example:
35uint256 public constant DEFAULT_SELL_FEE = 250;
Recommendation:
To properly illustrate each value's purpose, we advise the following guidelines to be followed.
For values meant to depict fractions with a base of 1e18
, we advise fractions to be utilized directly (i.e. 1e17
becomes 0.1e18
) as they are supported.
For values meant to represent a percentage base, we advise each value to utilize the underscore (_
) separator to discern the percentage decimal (i.e. 10000
becomes 100_00
, 300
becomes 3_00
and so on).
Finally, for large numeric values we simply advise the underscore character to be utilized again to represent them (i.e. 1000000
becomes 1_000_000
).
Alleviation (2ad448279d9e8e4b6edd94bcd2eb22129b6f7357):
The underscore separator has solely been introduced to the first referenced instance, rendering this exhibit partially alleviated.
MV2-02S: Literal Equality of bool
Variable
Type | Severity | Location |
---|---|---|
Gas Optimization | MarketplaceV2.sol:L539 |
Description:
The linked bool
comparison is performed between a variable and a bool
literal.
Example:
539if (initialSaleCompleted[nft][tokenId] == false) {
Recommendation:
We advise the bool
variable to be utilized directly either in its negated (!
) or original form.
Alleviation (2ad448279d9e8e4b6edd94bcd2eb22129b6f7357):
The redundant comparison with false
has been replaced by a direct utilization of the variable in its negated form.