The referenced event declarations do not have any indexed argument or have less than three indexed arguments that are a primitive type.
Example:
event RevenueDeposited(uint256 amount);
Recommendation:
Apart from aiding off-chain integrators in consuming and filtering such events, primitive types that are set as indexedwill result in a gas optimization due to reduced memory costs. As such, we advise the indexed keyword to be introduced to up to three different primitive types in total optimizing the referenced event declarations.
RSE-01S: Suboptimal Event Declarations
Description:
The referenced
eventdeclarations do not have anyindexedargument or have less than threeindexedarguments that are a primitive type.Example:
Recommendation:
Apart from aiding off-chain integrators in consuming and filtering such events, primitive types that are set as
indexedwill result in a gas optimization due to reduced memory costs. As such, we advise theindexedkeyword to be introduced to up to three different primitive types in total optimizing the referencedeventdeclarations.