nimbus-eth1/nimbus/core/withdrawals.nim

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# Nimbus
# Copyright (c) 2022 Status Research & Development GmbH
# Licensed under either of
# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
# http://www.apache.org/licenses/LICENSE-2.0)
# * MIT license ([LICENSE-MIT](LICENSE-MIT) or
# http://opensource.org/licenses/MIT)
# at your option. This file may not be copied, modified, or distributed except
# according to those terms.
import
stew/results,
2022-12-02 04:35:41 +00:00
../common/common
{.push raises: [].}
# https://eips.ethereum.org/EIPS/eip-4895
proc validateWithdrawals*(
com: CommonRef,
header: BlockHeader,
body: BlockBody
): Result[void, string]
{.gcsafe, raises: [].} =
if com.forkGTE(Shanghai):
if header.withdrawalsRoot.isNone:
return err("Post-Shanghai block header must have withdrawalsRoot")
elif body.withdrawals.isNone:
return err("Post-Shanghai block body must have withdrawals")
else:
try:
if body.withdrawals.get.calcWithdrawalsRoot != header.withdrawalsRoot.get:
return err("Mismatched withdrawalsRoot blockNumber =" & $header.blockNumber)
except RlpError as ex:
return err(ex.msg)
else:
if header.withdrawalsRoot.isSome:
return err("Pre-Shanghai block header must not have withdrawalsRoot")
elif body.withdrawals.isSome:
return err("Pre-Shanghai block body must not have withdrawals")
return ok()