Incompatible with Typechain

[ItsNickBarry]

I am getting this error when using this plugin in combination with @hardhat/typechain:

Error: EEXIST: file already exists, mkdir '/home/nickbarry/workspace/abdk-math-utils/contracts-exposed/Contract.sol'

It's fixed by setting a different prefix in the exposed config, such as x or _.

This may be a typechain issue (in fact, the stack trace points to typechain files), but I couldn't reproduce with typechain alone by adding the $ character to contract names. Need to better understand the context before reporting to them.

[ItsNickBarry]

It seems like the $ prefix works if compilation has already been run and the most recent compilation used a different prefix.

1. hardhat clean
2. compile with $ prefix => error
3. compile with _ prefix => okay
4. compile with $ prefix => okay
5. compile with $ prefix => error
6. compile with _ prefix => okay
7. compile with $ prefix => okay

[frangio]

I wasn't able to reproduce this. Could you submit a repository with reproduction?

[ItsNickBarry]

Could be an OS issue? Using Ubuntu 20.04. Node 16.13.1.

---

Can reproduce in this repository: https://github.com/ItsNickBarry/hardhat-waffle-template

Add this contract:

contract Test {
    function fnExternal() external pure returns (uint256) {
        return fnInternal();
    }

    function fnInternal() internal pure returns (uint256) {
        return 12;
    }
}

Install with yarn: yarn add --dev hardhat-exposed

Add import to HH config.

[frangio]

Thanks. It's not the prefix. There's something else going wrong. I'll open an issue and see if the TypeChain team can identify the problem.

dethcrypto/TypeChain#691

[ndavd]

Any updates on this?

[frangio]

These plugins still don't work together. hardhat-exposed seems to do something that is unexpected for Typechain and causes it to fail. I don't understand Typechain internals in order to suggest a fix.

[ItsNickBarry]

Closing because Typechain is deprecated.

[ItsNickBarry]

I found the problem and opened a PR: dethcrypto/TypeChain#908. It won't be merged because Typechain is deprecated.

I think the linked issue above is unrelated.