Abigen fails with complex type as argument

[infiloop2]

System information

Geth version: v1.10.16
OS & Version: OSX
Commit hash: -

Expected behaviour

abigen produces a go wrapper

Actual behaviour

abigen errors out

Steps to reproduce the behaviour

Save this as Example.sol

// SPDX-License-Identifier: MIT

pragma solidity 0.8.6;

library Example {
  enum Field {
    F1
  }

  function example(Field x) public view {}
}

Run:

solc-select use 0.8.6
./abigen --pkg example --sol Example.sol

Backtrace

Fatal: Failed to generate ABI binding: unsupported arg type: Example.Field

[infiloop2]

Interestingly this works if I change 'library' to 'contract'

[rjl493456442]

I have opened an issue in solidity repo. Looks like Solidity compiler doesn't generate the expected abi for library. Let's see how it's responded there. ethereum/solidity#12867

[holiman]

This is stale, abigen no longer supports sol, instead it expects the solc-artefacts as input, and leaves it to the user to invoke solc.