Miden VM Tracing

[frisitano]

In some cases a client will need granular detail of the state of the VM as it progresses through transaction execution. For example, a blockchain indexer which wants to provide rich insights relating to the transactions execution or alternatively for a user that needs to do some debugging. The Miden VM should expose an interface where a client can subscribe to this granular information. In turn the Miden Node can then expose an RPC interface where clients can request for a trace to be produced for the execution of a transaction.

Resources:
Geth Docs - https://geth.ethereum.org/docs/developers/evm-tracing/built-in-tracers
EF Talk - https://www.youtube.com/watch?v=b8RdmGsilfU&ab_channel=EthereumFoundation
Implementation Example - https://github.com/rust-blockchain/evm/blob/master/src/tracing.rs

[bobbinth]

I think we already have something like this exposed via execute_iter() function. Or were you thinking of something else?

[frisitano]

Yes this is what I was looking for. I must have missed it.

[bobbinth]

No worries! There are also thoughts in #580 on how this can be improved.