Merge pull request #32 from blukat29/setcode

kip-228: SetCodeTx updates CodeInfo as well

KIPs/kip-228.md

@@ -44,10 +44,15 @@ Its consensus type prefix (that affects `block.transactionRoot`) is `ENVELOPED_S
 
 #### Behavior
 
-The transaction’s behavior follows that of EIP-7702 except for the following:
-
-- For each authorization tuple `[chain_id, address, nonce, y_parity, r, s]`, fetch the AccountKey field of the recovered authority account.
-- Verify that the AccountKey is of type `AccountKeyTypeLegacy`. If verification fails, immediately stop processing the tuple and continue to the next tuple in the list.
+The transaction’s behavior follows that of [EIP-7702](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-7702.md) except for the following:
+
+For each authorization tuple `[chain_id, address, nonce, y_parity, r, s]`,
+- After recovering the authority,
+  - Fetch the AccountKey field of the recovered authority account.
+  - Verify that the AccountKey is of type `AccountKeyTypeLegacy`. If verification fails, immediately stop processing the tuple and continue to the next tuple in the list.
+- When setting the code of the authority,
+  - Also set its codeInfo to `0x11 (VmVersion1 & EVM)`
+  - As a special case, if address is `0x0000000000000000000000000000000000000000`, reset the authority account's codeInfo to `0x00`.
 
 #### Delegation Designation