Error Handling in version 6 #4558

quiet-node · 2024-01-22T18:56:22Z

quiet-node
Jan 22, 2024

Hello, my team recently migrated from v5 to v6, and I have a question about error handling in version 6.

Below is my Solidity contract:

contract Panic {
    function verifyPanicError0x01() external pure {
        assert(false);
    }
}

And here is the corresponding unit test in JavaScript:

it("Should verify panic error 0x01", async () => {
    try {
        await contract.verifyPanicError0x01();
    } catch (error) {
        console.log(error);
    }
});

In version 5, the console.log(error) would print out detailed information like:

Error: call revert exception; VM Exception while processing transaction: reverted with panic code 1 [ See: https://links.ethers.org/v5-errors-CALL_EXCEPTION ] (method="verifyPanicError0x01()", data="0x4e487b710000000000000000000000000000000000000000000000000000000000000001", errorArgs=[{"type":"BigNumber","hex":"0x01"}], errorName="Panic", errorSignature="Panic(uint256)", reason=null, code=CALL_EXCEPTION, version=abi/5.7.0)
    at Logger.makeError (/Users/user/Development/hashgraph/hedera-smart-contracts/node_modules/@ethersproject/logger/src.ts/index.ts:269:28)
    at Logger.throwError (/Users/user/Development/hashgraph/hedera-smart-contracts/node_modules/@ethersproject/logger/src.ts/index.ts:281:20)
    at Interface.decodeFunctionResult (/Users/user/Development/hashgraph/hedera-smart-contracts/node_modules/@ethersproject/abi/src.ts/interface.ts:427:23)
    at Contract.<anonymous> (/Users/user/Development/hashgraph/hedera-smart-contracts/node_modules/@ethersproject/contracts/src.ts/index.ts:400:44)
    at step (/Users/user/Development/hashgraph/hedera-smart-contracts/node_modules/@ethersproject/contracts/lib/index.js:48:23)
    at Object.next (/Users/user/Development/hashgraph/hedera-smart-contracts/node_modules/@ethersproject/contracts/lib/index.js:29:53)
    at fulfilled (/Users/user/Development/hashgraph/hedera-smart-contracts/node_modules/@ethersproject/contracts/lib/index.js:20:58)
    at processTicksAndRejections (node:internal/process/task_queues:95:5) {
  reason: null,
  code: 'CALL_EXCEPTION',
  method: 'verifyPanicError0x01()',
  data: '0x4e487b710000000000000000000000000000000000000000000000000000000000000001',
  errorArgs: [ BigNumber { value: "1" } ],
  errorName: 'Panic',
  errorSignature: 'Panic(uint256)',
  address: '0x2265146b6125C8640f2A05DBdb8213775cf4FaeA',
  args: [],
  transaction: {
    data: '0x874df313',
    to: '0x2265146b6125C8640f2A05DBdb8213775cf4FaeA',
    from: '0x05FbA803Be258049A27B820088bab1cAD2058871',
    gasLimit: BigNumber { value: "9021272" }
  }
}

In version 6, the error object looks like:

ProviderError: [Request ID: 3610607b-101f-4eb3-876c-2e0747d74e77] execution reverted: CONTRACT_REVERT_EXECUTED
    at HttpProvider.request (/Users/user/Development/hashgraph/hedera-smart-contracts/node_modules/hardhat/src/internal/core/providers/http.ts:88:21)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at staticCallResult (/Users/user/Development/hashgraph/hedera-smart-contracts/node_modules/ethers/src.ts/contract/contract.ts:337:22)
    at staticCall (/Users/user/Development/hashgraph/hedera-smart-contracts/node_modules/ethers/src.ts/contract/contract.ts:303:24)
    at Proxy.verifyPanicError0x01 (/Users/user/Development/hashgraph/hedera-smart-contracts/node_modules/ethers/src.ts/contract/contract.ts:351:41)
    at Context.<anonymous> (/Users/user/Development/hashgraph/hedera-smart-contracts/test/solidity/errors/panicErrors.js:36:7)

There is less detailed information in version 6. My question is: Is it possible to make the error object in version 6 as informative as it was in version 5?

ricmoo · 2024-01-22T19:04:18Z

ricmoo
Jan 22, 2024
Maintainer

The v6 object should definitely have more information. The error looks super strange. The string “ProviderError” and “Request ID” are not coming from ethers.

It looks like Hardhat is wrapping up the errors in some intermediate level? Is there a way to get the original error out of Hardhat?

2 replies

ricmoo Jan 22, 2024
Maintainer

Is that using the hardhat provider maybe? Is it possible to try with an Ethers provider?

quiet-node Jan 22, 2024
Author

you were right I just tried to create a new project with ethersv6 and no hardhat, and the returned error object does include all the necessary information. Hmm not sure why and where Hardhat wraps the object up.

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Error Handling in version 6 #4558

quiet-node Jan 22, 2024

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