[Question]: Can you generate an accurate solidity contract from bytecode if you already have the ABI?

[0xfuje]

Version

0.4.5

Please check the following

• This is not a duplicate question
• I have checked the wiki beforehand

Operating System

Linux

Ask your question here

Can you generate a more accurate solidity contract if you already have the ABI (and the bytecode)? My problem is I want to decompile a few contracts, I already have the ABI (+bytecode) for them, but don't have access to the contracts. Maybe this could be a potential new feature if not implemented, perhaps by adding an --abi flag with an abi input to the heimdall compile command.

Thank you for your time and for the awesome tool!

[Jon-Becker]

Hey! Thanks for opening this!

Would heimdall only use the provided abi to resolve signatures (i.e. skipping lookups)?

I suppose it would be more accurate this way and wouldn't have to inherit argument types from bytecode, which would improve overall decompilation.

Very interesting! I'll take a crack at it this weekend.

[Jon-Becker]

Just to follow up here, will likely include in 0.5.0 or 0.5.1, (next 1 or 2 builds)