Compatibility between vm.dumpState() and anvil --load-state

[penandlim]

Hello everyone.

I tried creating a new JSON file containing only the accounts key using the data from vm.dumpState(). Then, I converted all nonces from hex strings to decimal values. Afterward, I used that JSON for anvil --load-state, and it appeared to load the states correctly so far.

Is this approach, taking the state dumped via vm.dumpState() and repurposing it for Anvil, expected to work?

For context: JSON created by vm.dumpState() looks like this

{
  "0x034bbd44cbc42ba4e967705ed6226d1ea429a03e": {
    "nonce": "0x1",
    "balance": "0x0",
    "code": "0x6080604052600436101561001157f80fd5b5f3560...",
    "storage": {}
  },
  "0x03c68933f7a3f76875c0bc670a58e69294cdfd01": {
    "nonce": "0x1",
    "balance": "0x0",
    "code": "0x608060405234801561001057600080fd5b50600436...",
    "storage": {
      "0x0000000000000000000000000000000000000000000000000000000000000000": "0x0000000000000000000000000000000000000000000000000000000000000000",
      "0x0000000000000000000000000000000000000000000000000000000000000001": "0x0000000000000000000000000000000000000000000000000000000000000000"
    }
  },
  "0x0ad8a994e690c7c09c54e264eccc6ca98a26b211": {
    "nonce": "0x1",
    "balance": "0x0",
    "code": "0x...",
    "storage": {}
  }
}

while json by anvil --dump-state looks like this

{
  "block": {
    // block details
  },
  "accounts": {
    "0x14dc79964da2c08b23698b3d3cc7ca32193d9955": {
      "nonce": 0,
      "balance": "0x21e19e0c9bab240000",
      "code": "0x0",
      "storage": {}
    },
    "0x15d34aaf54267db7d7c367839aaf71a00a2c6a65": {
      // ... similar data structure ...
    },
    // ... additional addresses ...
  },
  "best_block_number": "0x0",
  "blocks": [
    // ... block list ...
  ],
  "transactions": [],
  "historical_states": null
}