ZeframLou / token-migrator

A simple contract for migrating from an old ERC20 token to a new ERC20 token.

TokenMigrator

A simple contract for migrating from an old ERC20 token to a new ERC20 token.

Also supports letting migrators get back their old tokens after a certain time (e.g. 99 years) for shady legal reasons.

The new ERC20 token MUST implement the IERC20Migrateable interface, specifically a migrate function following the interface function migrate(uint256 oldTokenAmount, address recipient) external returns (uint256 newTokenAmount). When called, the new ERC20 token must mint some amount of new tokens to recipient based on oldTokenAmount, and return the amount of new tokens minted as newTokenAmount. It does not need to make checks about whether old tokens have been locked. It MUST check that the caller is indeed the TokenMigrator contract.

Installation

To install with DappTools:

dapp install zeframlou/token-migrator

To install with Foundry:

forge install zeframlou/token-migrator

Local development

This project uses Foundry as the development framework.

Dependencies

make update

Compilation

make build

Testing

make test