go-ethereum/libevm/stateconf
Arran Schlosberg 464de82910
feat: state-key transformation w/ override (#205)
## Why this should be merged

`ava-labs/coreth` has a partitioned state-address space, achieved by
setting or clearing a specific bit in the hash used to key the space.
This change allows such behaviour to be achieved with pure `libevm`
instead of the `StateDB` wrapping that `coreth` currently uses.

## How this works

Introduction of `state.StateDBHooks` interface, including a
`TransformStateKey()` method that allows for arbitrary change of state
key. If registered, this hook will be honoured by
`StateDB.{Get,GetCommitted,State}Key()` methods unless they receive a
`stateconf.SkipStateKeyTransformation` option.

## How this was tested

Unit test of `SetState() -> GetState() + GetCommittedState()` round trip
with and without options to skip.
2025-07-22 13:08:53 -04:00
..
conf.go feat: state-key transformation w/ override (#205) 2025-07-22 13:08:53 -04:00