Revm Framework

Creating new variant of Revm is done by using a framework that is provided by the project. The framework is a set of traits that can be overridden to create a new logic that is needed. Overriding those traits can add new precompile or omit/change some logic of the EVM.

The main traits that are used for creating a new variant are:

Steps to implement a new variant:

1. Include Revm
2. Add main Evm type MyEvm and give it a Context, Precompile, Instructions and optionally Inspector.
3. Implement EvmTr for MyEvm.
4. Create a empty MyEvmHandler type and implementHandler for it. Override any logic that you want.
5. Now you can use MyEvmHandler to run your own MyEvm instance. Other steps are more for agronomics and easier usage.
6. Create a MyContextBuilder trait that will build your context with default types you want to use.
7. Create a MyEvmBuilder trait that will build your Evm with default instructions and precompiles.
8. Implement ExecuteEvm, ExecuteCommitEvm to have same interface as any other variant of EVM.