New features wish list

[zemse]

• Include panic error msg string
• Allow specifying extra opcodes via cli
• Implement opcode parsing for common opcodes initially (like add, mul and few more)
• Check if rpc supports debug_tt before doing a mainnet fork
• Handle invalid opcode for old solidity contracts (ethereum/solidity#9824))
• Allow decoding events as well in the decode task
• Automatically detect network when input hash in trace task
• Add ability to export the generated trace as json
• Display storage diff
• Display trace for failed estimate gas.
• Precompiles
• Handle Incorrect return data length

[shahnami]

Hi @zemse, awesome extension!

Would be nice to have an -o (--output) flag to export the trace in JSON as well.
Also, perhaps a way to diff the storage (to track what changed, or have this as part of the output).

[tonisives]

Thanks for the great extension! One interesting idea would be to output a mermaid.js sequence diagram of some sort. (maybe reduce the function variables a bit so it's more readable).

It would give you a more visual overview of the components and stacktrace.

One other feature would be merging proxies and their implementation. Currently they basically print out duplicate traces.

[zemse]

Thanks! I'll check it out.

[HarryR]

Thanks for the useful extension, it's really helped me get on-top of storage access patterns to reduce unnecessary loads & stores. Although Solidity still adds some unnecessary ones in there for good measure 🤷

It would be really useful to know the source line numbers where SLOAD and SSTORE calls are being triggered from.

[zemse]

I agree, source lines would be useful. Though I wonder how to fit that in the console display since it already prints a lot of stuff which makes it overwhelming sometimes. Maybe behind a flag/config option. I've created an issue for this.

Closing this issue since these pending ones in this issue are in my backlog for a long time and I don't think I can do these anytime soon. But feel free to open a new issue about any feature that can be useful.