add method eth_getAccountInfo

[gzliudan]

Proposed changes

Add method eth_getAccountInfo which returns below properties for an account:

• address
• balance
• code hash
  • for contract: Keccak256(code)
  • for exist EOA: Keccak256(nil) = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470
  • for inexistent account: 0x0000000000000000000000000000000000000000000000000000000000000000
• code size
• nonce
• storage hash

Test

1. system contract

request

 curl -s -X POST -H "Content-Type: application/json" ${RPC} -d '{
  "jsonrpc": "2.0",
  "id": 8001,
  "method": "eth_getAccountInfo",
  "params": [
    "0x0000000000000000000000000000000000000088",
    "latest"
  ]
}' | jq

response

{
  "jsonrpc": "2.0",
  "id": 8001,
  "result": {
    "address": "0x0000000000000000000000000000000000000088",
    "balance": "0x1fc3842bd1f071c00000",
    "codeHash": "0x43e5b04f4015a9345835af4980fea519f1a1f499cbfddd624696cca4dcd43657",
    "codeSize": 14452,
    "nonce": 0,
    "storageHash": "0x69fc7cb82b5837876debf26719e7057afa53678154477a9a8376f371caef86b8"
  }
}

2. exist EOA

0xD4CE02705041F04135f1949Bc835c1Fe0885513c is my test account which is exist on chain when I test.

request

curl -s -X POST -H "Content-Type: application/json" ${RPC} -d '{
  "jsonrpc": "2.0",
  "id": 8002,
  "method": "eth_getAccountInfo",
  "params": [
    "0xD4CE02705041F04135f1949Bc835c1Fe0885513c",
    "latest"
  ]
}' | jq

response

{
  "jsonrpc": "2.0",
  "id": 8002,
  "result": {
    "address": "0xd4ce02705041f04135f1949bc835c1fe0885513c",
    "balance": "0x200000000000000000000000000000000000000000000000000000000000000",
    "codeHash": "0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470",
    "codeSize": 0,
    "nonce": 0,
    "storageHash": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421"
  }
}

3. inexistent account

*request

curl -s -X POST -H "Content-Type: application/json" ${RPC} -d '{
  "jsonrpc": "2.0",
  "id": 8003,
  "method": "eth_getAccountInfo",
  "params": [
    "0xf756fdbb39E5491AFE9FDab2B69E48e408e84888",
    "latest"
  ]
}' | jq

response

{
  "jsonrpc": "2.0",
  "id": 8003,
  "result": {
    "address": "0xf756fdbb39e5491afe9fdab2b69e48e408e84888",
    "balance": "0x0",
    "codeHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
    "codeSize": 0,
    "nonce": 0,
    "storageHash": "0x0000000000000000000000000000000000000000000000000000000000000000"
  }
}

Types of changes

What types of changes does your code introduce to XDC network?
Put an ✅ in the boxes that apply

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Update (if none of the other choices apply)
• Regular KTLO or any of the maintaince work. e.g code style
• CICD Improvement

Impacted Components

Which part of the codebase this PR will touch base on,

Put an ✅ in the boxes that apply

• Consensus
• Account
• Network
• Geth
• Smart Contract
• External components
• Not sure (Please specify below)

Checklist

Put an ✅ in the boxes once you have confirmed below actions (or provide reasons on not doing so) that

• This PR has sufficient test coverage (unit/integration test) OR I have provided reason in the PR description for not having test coverage
• Provide an end-to-end test plan in the PR description on how to manually test it on the devnet/testnet.
• Tested the backwards compatibility.
• Tested with XDC nodes running this version co-exist with those running the previous version.
• Relevant documentation has been updated as part of this PR
• N/A