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EIP-4399 changes: random -> prevRandao

This commit is contained in:
jangko 2022-02-27 11:40:15 +07:00
parent 63add129b8
commit 622e6489d8
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2 changed files with 6 additions and 7 deletions
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7
eth/common/eth_types.nim
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@ -244,12 +244,11 @@ func baseFee*(h: BlockHeader | BlockHeaderRef): UInt256 =
template `baseFee=`*(h: BlockHeader | BlockHeaderRef, data: UInt256) =
h.fee = some(data)
# starting from EIP-4399, `mixHash`/`mixDigest` field will be alled `random`
# https://github.com/ethereum/EIPs/blob/bd156daf2afa38aa95bc2137d3121ff536e50645/EIPS/eip-4399.md
template random*(h: BlockHeader | BlockHeaderRef): Hash256 =
# starting from EIP-4399, `mixHash`/`mixDigest` field will be alled `prevRandao`
template prevRandao*(h: BlockHeader | BlockHeaderRef): Hash256 =
h.mixDigest
template `random=`*(h: BlockHeader | BlockHeaderRef, hash: Hash256) =
template `prevRandao=`*(h: BlockHeader | BlockHeaderRef, hash: Hash256) =
h.mixDigest = hash
func toBlockNonce*(n: uint64): BlockNonce =

6
tests/common/test_eth_types.nim
View File

@ -50,9 +50,9 @@ suite "BlockHashOrNumber":
Json.roundtripTest BlockHashOrNumber(isHash: false, number: 1209231231),
"\"1209231231\""
test "EIP-4399 random field":
test "EIP-4399 prevRandao field":
let hash = Hash256.fromHex "0x7a64245f7f95164f6176d90bd4903dbdd3e5433d555dd1385e81787f9672c588"
var blk: BlockHeader
blk.random = hash
let res = blk.random
blk.prevRandao = hash
let res = blk.prevRandao
check hash == res