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Automatically merged updates to draft EIP(s) 1702 (#2149)

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Hi, I'm a bot! This change was automatically merged because:

 - It only modifies existing Draft or Last Call EIP(s)
 - The PR was approved or written by at least one author of each modified EIP
 - The build is passing
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Wei Tang 2019-06-25 18:04:38 +02:00 committed by EIP Automerge Bot
parent 0e76bca4f6
commit b362bb36de
1 changed files with 8 additions and 4 deletions
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EIPS/eip-1702.md
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@ -43,8 +43,12 @@ might still be a good idea.
Re-define account state stored in the world state trie to have 5 Re-define account state stored in the world state trie to have 5
items: `nonce`, `balance`, `storageRoot`, `codeHash`, and items: `nonce`, `balance`, `storageRoot`, `codeHash`, and
`version`. The newly added field `version` is a 256-bit integer. When `version`. The newly added field `version` is a 256-bit **scalar**. We
`version` is zero, the account is RLP-encoded with the first 4 use the definition of "scalar" from Yellow Paper. Note that this is
the same type as `nonce` and `balance`, and it is equivalent to a RLP
variable-sized byte array with no leading zero, of maximum length 32.
When `version` is zero, the account is RLP-encoded with the first 4
items. When `version` is not zero, the account is RLP-encoded with 5 items. When `version` is not zero, the account is RLP-encoded with 5
items. items.
@ -114,7 +118,7 @@ parsing strategy when additional fields are added.
* Check the RLP list length, if it is 4, then set account version to * Check the RLP list length, if it is 4, then set account version to
`0`, and do not parse any additional fields. `0`, and do not parse any additional fields.
* If the RLP list length more than 4, set the account version to the * If the RLP list length more than 4, set the account version to the
integer at position `4` (counting from `0`). scalar at position `4` (counting from `0`).
* Check version specification for the number of additional fields * Check version specification for the number of additional fields
defined `N`, if the RLP list length is not equal to `5 + N`, defined `N`, if the RLP list length is not equal to `5 + N`,
return parse error. return parse error.
@ -148,7 +152,7 @@ Account versioning is usually applied directly to a hard fork meta
EIP. EIPs in the hard fork are grouped by the virtual machine type, EIP. EIPs in the hard fork are grouped by the virtual machine type,
for example, EVM and eWASM. For each of them, we define: for example, EVM and eWASM. For each of them, we define:
* **Version**: a non-zero integer less than `2^256` that uniquely * **Version**: a non-zero scalar less than `2^256` that uniquely
identifies this version. Note that it does not need to be identifies this version. Note that it does not need to be
sequential. sequential.
* **Parent version**: the base that all new features derived * **Parent version**: the base that all new features derived