Compilation Errors with Some Smart Contracts

[fredfortier]

I'm getting this compilation error with some smart contracts. This error is familiar and probably related to rust-web3. I'm documenting it here to keep track of it. I decided to create a Solidity interface and use that abi instead of the main contract. This is how I got around rust-web3 abi issues in the past.

Smart Contracts:
Compiling your contracts...
===========================
> Artifacts written to /home/fredfortier/Code/Mixer/enigma-mixer/build/smart_contracts
> Compiled successfully using:
   - solc: 0.5.8+commit.23d335f2.Emscripten.clang

Compiling Secret Contract "mixer"...
   Compiling contract v0.1.0 (/home/fredfortier/Code/Mixer/enigma-mixer/secret_contracts/mixer)
error: custom attribute panicked
  --> src/lib.rs:26:1
   |
26 | #[eth_contract("Mixer.json")]
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = help: message: called `Result::unwrap()` on an `Err` value: TokenParseError { error: "unexpected token" }

error: aborting due to previous error

error: Could not compile `contract`.

To learn more, run the command again with --verbose.
Something went wrong compiling secret contract mixer, aborting.

[fredfortier]

After trying an elimination process, it seems like bytes32 is the culprit.

This compiles:

[
  {
    "constant": false,
    "inputs": [
      {
        "name": "dealId",
        "type": "uint32"
      },
      {
        "name": "recipients",
        "type": "address[]"
      }
    ],
    "name": "distribute",
    "outputs": [],
    "payable": false,
    "stateMutability": "nonpayable",
    "type": "function"
  }
]

This doesn't:

[
  {
    "constant": false,
    "inputs": [
      {
        "name": "dealId",
        "type": "bytes32"
      },
      {
        "name": "recipients",
        "type": "address[]"
      }
    ],
    "name": "distribute",
    "outputs": [],
    "payable": false,
    "stateMutability": "nonpayable",
    "type": "function"
  }
]

[levackt]

Seems not only bytes32 @fredfortier

I've just pushed a sample project with the same error affecting fixed length arrays, see https://github.com/levackt/discovery-fixed-length-array

Also see forum post forum post