/rareskills_week_01

Primary LanguageSolidity

Rareskills Week 01 Assignment

ERC777

Observations

  • If multiple tokens have the same interface hash "ERC777TokensRecipient" a malicious user can set the interface
  • ERC777 is not part of OZ codebase starting v5.x
  • if account is a contract, it must implement the {IERC777Recipient} interface.
    • if using send or operatorSend and transferFrom don't require it
    • backward compatibility since transfer
  • deploying ERC777 in a testnet env requires ERC1820 also being deployed
    • best is to vm.fork
  • owner of ERC777 can decide to circumvent receiving hook for minting

Questions

  • Do operator face any restrictions on how to use the tokens?
  • Update existing ERC20 with ERC777, is that possible?
    • yes, ERC777 is backwards compatible
  • vs code complains about my inheritdoc natspec comment

Open Challenges

ERC-1363

Observations

Foundry with Soldeer Template

# to install the dependencies listed in foundry.toml
forge soldeer update
# build
forge build
# test
forge test

# remove dependencies
forge soldeer uninstall DEPENDENCY
# install dependencies
forge soldeer install @openzeppelin-contracts~5.0.2