Contract viewer [old - ignore]

[hananbeer]

This is my first commit for code review.

The goal is to add a Contract Viewer tab with better functionalities than etherscan, ideally independent of etherscan and open source.

See demo video here: https://x.com/high_byte/status/1743294802022609172?s=20

Things I've added:

• ui components live in /components/ContractViewer.ts. I use shadcn components which live in the /@ folder, mui-tree-viewer element, and monaco editor. I think most of the CR should focus here since I'm no react developer.

• api endpoint in /pages/api/getContract.ts to fetch etherscan contract information

• utilities to flatten solidity source code (with small caveat of not yet supporting named imports) in /util/flatten.ts

• utilities to parse etherscan info in /util/EtherscanApi.ts and /util/EtherscanParser.ts (in the end we want to support sourcify too)

• reworked the solidity compiler web worker - supports selecting compiler version & generally just nicer smaller code.

• I don't use solc's ast for output, at least not yet. for that I use @solidity-parser/parser package. (that one was really annoying since it wasn't working in the browser.. fixed that)

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Name	Status	Preview	Comments	Updated (UTC)
evm-codes	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Feb 2, 2024 8:54pm

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[hananbeer]

I see you have added code for handling the various Etherscan response formats (nice!) in util/EtherscanParser.ts, but I still have issues viewing contracts that are not in the single source file format

example of contracts that fails to be loaded:

• 0x000000000022d473030f116ddee9f6b43ac78ba3 (standard solc json response)
• 0xfd1539ee9ccad1ab5d9b4877097cfd8221815b47 (multifile json response)

btw - I tried to debug this error myself, but when I try to run a preview (yarn install and then yarn dev) of this branch locally I get a error saying there are "5 Unhandled Runtime Error" (works fine on master). Do you see these errors also ?

thanks that's a good catch. some contracts have remappings and etherscan sources are pre-remapping, so I committed a fix to remap sources when looking for them.

[charisra]

Superseded by https://github.com/smlxl/evm.codes/pull/318