Use Diamond Storage

[mudgen]

It would be useful if the ERC721A implementation was changed to use diamond storage.

Diamond storage is a contract storage technique that makes organizing and upgrading data in proxy contracts and diamonds possible.

If the ERC721A implementation used diamond storage then it could be used in diamonds and other proxy contracts without change.

[cliffhall]

This is true, and one of my biggest complaints about most of the 721 implementations, they cannot be used with a diamond if they use the common storage approach. Even OZ's upgradeable suite does this. :(

Why would anyone want to build their contract so it would be diamond compatible if it isn't intended specifically to be used that way? As what we do with Web3 evolves, upgradeability and larger contracts will be the norm, and currently diamond is the only upgradeable proxy standard that supports near infinite expansion of contract size.

[Vectorized]

OpenZeppelin/openzeppelin-contracts#2964

[mudgen]

OpenZeppelin/openzeppelin-contracts#2964

Yes, OpenZeppelin plans to adopt diamond storage, but we don't know when that will be:

From frangio: Yes, we want to adopt diamond storage for the next major release, but we don't have an estimated release date. It will most likely happen whenever Solidity 0.9 is released, and as far as we know there is no date for that either.