The topic of discussion in this article series has been the ways a smart contract developer can optimize the contract’s bytecode size & never hit the threshold of 24.576 kb.
So here is another crucial development pattern you can use to lower the bytecode size of your contract.
It's actually quite simple
Use Libraries in Smart Contracts
How does it HELP?
👉 Using libraries in Solidity can help in minimizing contract bytecode size by reducing code duplication across multiple contracts.
👉 When the same functionality is required in multiple contracts, the code for that functionality can be written in a separate library contract and then linked to the other contracts that require it.
👉 This reduces the amount of code that needs to be deployed to the blockchain, which can significantly reduce the cost of deploying and interacting with the contracts.
Some more reasons why using libraries in Solidity can help minimize contract bytecode size and enhance overall performance:
🟢 Code reusability: Libraries allow developers to write code once and reuse it in multiple contracts, rather than duplicating the same code across multiple contracts. This reduces the amount of code that needs to be deployed and stored on the blockchain.
🟢 Smaller contract size: Because the library code is stored in a separate contract, the size of the contract that uses the library is smaller. This can significantly reduce the cost of deploying and interacting with the contract.
🟢 Easier to maintain: Using libraries can make contracts easier to maintain, as changes can be made to the library code without affecting the contracts that use it. This can also help to reduce the risk of bugs and vulnerabilities in the contract code.
🟢 Improved security: Libraries can be audited separately from the contracts that use them, which can improve security by allowing for more focused security reviews. I
Moreover, by reducing code duplication and improving code reuse, libraries can help to reduce the risk of vulnerabilities in the contract code.
📝 𝐀𝐧 𝐚𝐝𝐝𝐢𝐭𝐢𝐨𝐧𝐚𝐥 ( 𝐈𝐦𝐩𝐞𝐫𝐚𝐭𝐢𝐯𝐞) 𝐍𝐎𝐓𝐄 𝐟𝐨𝐫 𝐃𝐞𝐯𝐬:
👉 While developing your smart contract, if one of the main reasons behind using Libraries is to optimize for the contract's bytecode size, then you should 𝐚𝐯𝐨𝐢𝐝 𝐝𝐞𝐜𝐥𝐚𝐫𝐢𝐧𝐠 𝐭𝐡𝐞 𝐋𝐢𝐛𝐫𝐚𝐫𝐲 𝐟𝐮𝐧𝐜𝐭𝐢𝐨𝐧𝐬 𝐰𝐢𝐭𝐡 𝐈𝐧𝐭𝐞𝐫𝐧𝐚𝐥 𝐕𝐢𝐬𝐢𝐛𝐢𝐥𝐢𝐭𝐲.
👉 Attaching internal visibility to library functions will eventually add those functions in the main contract during compilation, which won't really help us in bytecode size reduction.
👉 𝐂𝐨𝐧𝐬𝐢𝐝𝐞𝐫 𝐦𝐚𝐫𝐤𝐢𝐧𝐠 𝐥𝐢𝐛𝐫𝐚𝐫𝐲 𝐟𝐮𝐧𝐜𝐭𝐢𝐨𝐧𝐬 𝐚𝐬 𝐏𝐔𝐁𝐋𝐈𝐂 as that would help keep them in a separate library contract and also help with optimization.
Overall, using libraries in Solidity is a powerful tool for minimizing contract bytecode size and improving the efficiency and security of smart contract development.
Other parts of this series 👇
- Part 1 ➡️ Beware Solidity Devs, you might just hit your contract size limit
- Part 2 ➡️ Replace modifiers with private functions and reduce your contract's size
- Part 3 ➡️ Custom Errors in solidity are more useful than you think