error-handling

Custom errors in Solidity define structured revert parameters without storing string messages in bytecode. They convey execution failure context across contract modules more efficiently than require statements, reducing gas costs and simplifying off-chain decoding.

Document custom errors using NatSpec guidelines to make error semantics clear for developers and tooling. This standardizes revert patterns across contract modules, ensuring structured error propagation is verifiable during design and auditing.

Yes, try-catch usage in Solidity integrates with custom errors to enforce consistent error semantics across upgradeable contract modules. This structured error propagation ensures safer upgradeability and clearer debugging across decentralized applications.

The best way to structure Solidity error hierarchies is to define a centralized set of custom errors with structured parameters. This enforces consistent error propagation across modules, improving debuggability and gas efficiency during contract deployment.

Avoid string messages in Solidity require statements when optimizing for gas efficiency and off-chain debuggability. Replacing them with standardized custom errors creates cheaper, more expressive error surfaces by eliminating expensive string storage from bytecode.