EIP-2535 Diamonds Implementation

This is a simple example implementation for EIP-2535 Diamonds. To learn about other implementations go here: https://github.com/mudgen/diamond

The standard loupe functions have been gas-optimized in this implementation and can be called in on-chain transactions. However keep in mind that a diamond can have any number of functions and facets so it is still possible to get out-of-gas errors when calling loupe functions. Except for the facetAddress loupe function which has a fixed gas cost.

The contracts/facets/LaunchPadProjectFacet.sol file shows an launchpad contract with Diamond implementation.

The contracts/libraries/LibLaunchPadProjectStorage.sol file shows how to implement Diamond Storage.

Calling Diamond Functions

In order to call a function that exists in a diamond you need to use the ABI information of the facet that has the function.

Useful Links

1. EIP-2535 Diamonds
2. diamond-3-hardhat
3. Introduction to EIP-2535 Diamonds
4. Solidity Storage Layout For Proxy Contracts and Diamonds
5. New Storage Layout For Proxy Contracts and Diamonds
6. Diamond Setter
7. Upgradeable smart contracts using the EIP-2535 Diamonds
8. buidler-deploy supports diamonds

Author

This implementation was written by Jenson.

Contact:

• https://twitter.com/NonFungibleJC
• nonfungiblejc@gmail.com

License

MIT license. See the license file. Anyone can use or modify this software for their purposes.