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nimbus-eth2/beacon_chain/spec/forks.nim

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# beacon_chain
# Copyright (c) 2021-2023 Status Research & Development GmbH
# Licensed and distributed under either of
# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
# at your option. This file may not be copied, modified, or distributed except according to those terms.
{.push raises: [].}
import
std/macros,
stew/assign2,
stew/results,
chronicles,
../extras,
"."/[
block_id, eth2_merkleization, eth2_ssz_serialization,
forks_light_client, presets],
./datatypes/[phase0, altair, bellatrix, capella, deneb],
./mev/bellatrix_mev, ./mev/capella_mev, ./mev/deneb_mev
export
extras, block_id, phase0, altair, bellatrix, capella, deneb,
eth2_merkleization, eth2_ssz_serialization, forks_light_client,
presets, capella_mev, deneb_mev
# This file contains helpers for dealing with forks - we have two ways we can
# deal with forks:
# * generics - this means using the static typing and differentiating forks
# at compile time - this is preferred in fork-specific code where the fork
# is known up-front, for example spec functions.
# * variants - this means using a variant object and determining the fork at
# runtime - this carries the obvious risk and complexity of dealing with
# runtime checking, but is of course needed for external data that may be
# of any fork kind.
#
# For generics, we define `Forky*` type classes that cover "similar" objects
# across forks - for variants, they're called `Forked*` instead.
# See withXxx and `init` for convenient ways of moving between these two worlds.
# A clever programmer would use templates, macros and dark magic to create all
# these types and converters :)
type
ConsensusFork* {.pure.} = enum
Phase0,
Altair,
Bellatrix,
Capella,
Deneb
ForkyBeaconState* =
phase0.BeaconState |
altair.BeaconState |
bellatrix.BeaconState |
capella.BeaconState |
deneb.BeaconState
ForkyHashedBeaconState* =
phase0.HashedBeaconState |
altair.HashedBeaconState |
bellatrix.HashedBeaconState |
capella.HashedBeaconState |
deneb.HashedBeaconState
ForkedHashedBeaconState* = object
case kind*: ConsensusFork
of ConsensusFork.Phase0: phase0Data*: phase0.HashedBeaconState
of ConsensusFork.Altair: altairData*: altair.HashedBeaconState
of ConsensusFork.Bellatrix: bellatrixData*: bellatrix.HashedBeaconState
of ConsensusFork.Capella: capellaData*: capella.HashedBeaconState
of ConsensusFork.Deneb: denebData*: deneb.HashedBeaconState
ForkyExecutionPayload* =
bellatrix.ExecutionPayload |
capella.ExecutionPayload |
deneb.ExecutionPayload
ForkyExecutionPayloadHeader* =
bellatrix.ExecutionPayloadHeader |
capella.ExecutionPayloadHeader |
deneb.ExecutionPayloadHeader
ForkyBeaconBlockBody* =
phase0.BeaconBlockBody |
altair.BeaconBlockBody |
bellatrix.BeaconBlockBody |
capella.BeaconBlockBody |
deneb.BeaconBlockBody
ForkySigVerifiedBeaconBlockBody* =
phase0.SigVerifiedBeaconBlockBody |
altair.SigVerifiedBeaconBlockBody |
bellatrix.SigVerifiedBeaconBlockBody |
capella.SigVerifiedBeaconBlockBody |
deneb.SigVerifiedBeaconBlockBody
ForkyTrustedBeaconBlockBody* =
phase0.TrustedBeaconBlockBody |
altair.TrustedBeaconBlockBody |
bellatrix.TrustedBeaconBlockBody |
capella.TrustedBeaconBlockBody |
deneb.TrustedBeaconBlockBody
SomeForkyBeaconBlockBody* =
ForkyBeaconBlockBody |
ForkySigVerifiedBeaconBlockBody |
ForkyTrustedBeaconBlockBody
ForkyBeaconBlock* =
phase0.BeaconBlock |
altair.BeaconBlock |
bellatrix.BeaconBlock |
capella.BeaconBlock |
deneb.BeaconBlock
ForkySigVerifiedBeaconBlock* =
phase0.SigVerifiedBeaconBlock |
altair.SigVerifiedBeaconBlock |
bellatrix.SigVerifiedBeaconBlock |
capella.SigVerifiedBeaconBlock |
deneb.SigVerifiedBeaconBlock
ForkyTrustedBeaconBlock* =
phase0.TrustedBeaconBlock |
altair.TrustedBeaconBlock |
bellatrix.TrustedBeaconBlock |
capella.TrustedBeaconBlock |
deneb.TrustedBeaconBlock
SomeForkyBeaconBlock* =
ForkyBeaconBlock |
ForkySigVerifiedBeaconBlock |
ForkyTrustedBeaconBlock
ForkyExecutionPayloadForSigning* =
bellatrix.ExecutionPayloadForSigning |
capella.ExecutionPayloadForSigning |
deneb.ExecutionPayloadForSigning
ForkedBeaconBlock* = object
case kind*: ConsensusFork
of ConsensusFork.Phase0: phase0Data*: phase0.BeaconBlock
of ConsensusFork.Altair: altairData*: altair.BeaconBlock
of ConsensusFork.Bellatrix: bellatrixData*: bellatrix.BeaconBlock
of ConsensusFork.Capella: capellaData*: capella.BeaconBlock
of ConsensusFork.Deneb: denebData*: deneb.BeaconBlock
Web3SignerForkedBeaconBlock* = object
kind*: ConsensusFork
data*: BeaconBlockHeader
ForkedBlindedBeaconBlock* = object
case kind*: ConsensusFork
of ConsensusFork.Phase0: phase0Data*: phase0.BeaconBlock
of ConsensusFork.Altair: altairData*: altair.BeaconBlock
of ConsensusFork.Bellatrix: bellatrixData*: bellatrix_mev.BlindedBeaconBlock
of ConsensusFork.Capella: capellaData*: capella_mev.BlindedBeaconBlock
of ConsensusFork.Deneb: denebData*: capella_mev.BlindedBeaconBlock
ForkedTrustedBeaconBlock* = object
case kind*: ConsensusFork
of ConsensusFork.Phase0: phase0Data*: phase0.TrustedBeaconBlock
of ConsensusFork.Altair: altairData*: altair.TrustedBeaconBlock
of ConsensusFork.Bellatrix: bellatrixData*: bellatrix.TrustedBeaconBlock
of ConsensusFork.Capella: capellaData*: capella.TrustedBeaconBlock
of ConsensusFork.Deneb: denebData*: deneb.TrustedBeaconBlock
ForkySignedBeaconBlock* =
phase0.SignedBeaconBlock |
altair.SignedBeaconBlock |
bellatrix.SignedBeaconBlock |
capella.SignedBeaconBlock |
deneb.SignedBeaconBlock
ForkedSignedBeaconBlock* = object
case kind*: ConsensusFork
of ConsensusFork.Phase0: phase0Data*: phase0.SignedBeaconBlock
of ConsensusFork.Altair: altairData*: altair.SignedBeaconBlock
of ConsensusFork.Bellatrix: bellatrixData*: bellatrix.SignedBeaconBlock
of ConsensusFork.Capella: capellaData*: capella.SignedBeaconBlock
of ConsensusFork.Deneb: denebData*: deneb.SignedBeaconBlock
ForkySignedBlindedBeaconBlock* =
phase0.SignedBeaconBlock |
altair.SignedBeaconBlock |
capella_mev.SignedBlindedBeaconBlock
ForkedSignedBlindedBeaconBlock* = object
case kind*: ConsensusFork
of ConsensusFork.Phase0: phase0Data*: phase0.SignedBeaconBlock
of ConsensusFork.Altair: altairData*: altair.SignedBeaconBlock
of ConsensusFork.Bellatrix: bellatrixData*: bellatrix_mev.SignedBlindedBeaconBlock
of ConsensusFork.Capella: capellaData*: capella_mev.SignedBlindedBeaconBlock
of ConsensusFork.Deneb: denebData*: capella_mev.SignedBlindedBeaconBlock
ForkySigVerifiedSignedBeaconBlock* =
phase0.SigVerifiedSignedBeaconBlock |
altair.SigVerifiedSignedBeaconBlock |
bellatrix.SigVerifiedSignedBeaconBlock |
capella.SigVerifiedSignedBeaconBlock |
deneb.SigVerifiedSignedBeaconBlock
ForkyMsgTrustedSignedBeaconBlock* =
phase0.MsgTrustedSignedBeaconBlock |
altair.MsgTrustedSignedBeaconBlock |
bellatrix.MsgTrustedSignedBeaconBlock |
capella.MsgTrustedSignedBeaconBlock |
deneb.MsgTrustedSignedBeaconBlock
ForkyTrustedSignedBeaconBlock* =
phase0.TrustedSignedBeaconBlock |
altair.TrustedSignedBeaconBlock |
bellatrix.TrustedSignedBeaconBlock |
capella.TrustedSignedBeaconBlock |
deneb.TrustedSignedBeaconBlock
ForkedMsgTrustedSignedBeaconBlock* = object
case kind*: ConsensusFork
of ConsensusFork.Phase0: phase0Data*: phase0.MsgTrustedSignedBeaconBlock
of ConsensusFork.Altair: altairData*: altair.MsgTrustedSignedBeaconBlock
of ConsensusFork.Bellatrix: bellatrixData*: bellatrix.MsgTrustedSignedBeaconBlock
of ConsensusFork.Capella: capellaData*: capella.MsgTrustedSignedBeaconBlock
of ConsensusFork.Deneb: denebData*: deneb.MsgTrustedSignedBeaconBlock
ForkedTrustedSignedBeaconBlock* = object
case kind*: ConsensusFork
of ConsensusFork.Phase0: phase0Data*: phase0.TrustedSignedBeaconBlock
of ConsensusFork.Altair: altairData*: altair.TrustedSignedBeaconBlock
of ConsensusFork.Bellatrix: bellatrixData*: bellatrix.TrustedSignedBeaconBlock
of ConsensusFork.Capella: capellaData*: capella.TrustedSignedBeaconBlock
of ConsensusFork.Deneb: denebData*: deneb.TrustedSignedBeaconBlock
SomeForkySignedBeaconBlock* =
ForkySignedBeaconBlock |
ForkySigVerifiedSignedBeaconBlock |
ForkyMsgTrustedSignedBeaconBlock |
ForkyTrustedSignedBeaconBlock
EpochInfoFork* {.pure.} = enum
Phase0
Altair
ForkedEpochInfo* = object
case kind*: EpochInfoFork
of EpochInfoFork.Phase0: phase0Data*: phase0.EpochInfo
of EpochInfoFork.Altair: altairData*: altair.EpochInfo
ForkyEpochInfo* = phase0.EpochInfo | altair.EpochInfo
ForkDigests* = object
phase0*: ForkDigest
altair*: ForkDigest
bellatrix*: ForkDigest
capella*: ForkDigest
deneb*: ForkDigest
macro getSymbolFromForkModule(fork: static ConsensusFork,
symbolName: static string): untyped =
let moduleName = case fork
of ConsensusFork.Phase0: "phase0"
of ConsensusFork.Altair: "altair"
of ConsensusFork.Bellatrix: "bellatrix"
of ConsensusFork.Capella: "capella"
of ConsensusFork.Deneb: "deneb"
newDotExpr(ident moduleName, ident symbolName)
template BeaconStateType*(fork: static ConsensusFork): auto =
getSymbolFromForkModule(fork, "BeaconState")
template BeaconBlockType*(fork: static ConsensusFork): auto =
getSymbolFromForkModule(fork, "BeaconBlock")
template BeaconBlockBodyType*(fork: static ConsensusFork): auto =
getSymbolFromForkModule(fork, "BeaconBlockBody")
template SignedBeaconBlock*(kind: static ConsensusFork): auto =
when kind == ConsensusFork.Deneb:
typedesc[deneb.SignedBeaconBlock]
elif kind == ConsensusFork.Capella:
typedesc[capella.SignedBeaconBlock]
elif kind == ConsensusFork.Bellatrix:
typedesc[bellatrix.SignedBeaconBlock]
elif kind == ConsensusFork.Altair:
typedesc[altair.SignedBeaconBlock]
elif kind == ConsensusFork.Phase0:
typedesc[phase0.SignedBeaconBlock]
else:
static: raiseAssert "Unreachable"
template ExecutionPayloadForSigning*(kind: static ConsensusFork): auto =
when kind == ConsensusFork.Deneb:
typedesc[deneb.ExecutionPayloadForSigning]
elif kind == ConsensusFork.Capella:
typedesc[capella.ExecutionPayloadForSigning]
elif kind == ConsensusFork.Bellatrix:
typedesc[bellatrix.ExecutionPayloadForSigning]
else:
static: raiseAssert "Unreachable"
template withConsensusFork*(
x: ConsensusFork, body: untyped): untyped =
case x
of ConsensusFork.Deneb:
const consensusFork {.inject, used.} = ConsensusFork.Deneb
body
of ConsensusFork.Capella:
const consensusFork {.inject, used.} = ConsensusFork.Capella
body
of ConsensusFork.Bellatrix:
const consensusFork {.inject, used.} = ConsensusFork.Bellatrix
body
of ConsensusFork.Altair:
const consensusFork {.inject, used.} = ConsensusFork.Altair
body
of ConsensusFork.Phase0:
const consensusFork {.inject, used.} = ConsensusFork.Phase0
body
# TODO when https://github.com/nim-lang/Nim/issues/21086 fixed, use return type
# `ref T`
func new*(T: type ForkedHashedBeaconState, data: phase0.BeaconState):
ref ForkedHashedBeaconState =
(ref T)(kind: ConsensusFork.Phase0, phase0Data: phase0.HashedBeaconState(
data: data, root: hash_tree_root(data)))
func new*(T: type ForkedHashedBeaconState, data: altair.BeaconState):
ref ForkedHashedBeaconState =
(ref T)(kind: ConsensusFork.Altair, altairData: altair.HashedBeaconState(
data: data, root: hash_tree_root(data)))
func new*(T: type ForkedHashedBeaconState, data: bellatrix.BeaconState):
ref ForkedHashedBeaconState =
(ref T)(kind: ConsensusFork.Bellatrix, bellatrixData: bellatrix.HashedBeaconState(
data: data, root: hash_tree_root(data)))
func new*(T: type ForkedHashedBeaconState, data: capella.BeaconState):
ref ForkedHashedBeaconState =
(ref T)(kind: ConsensusFork.Capella, capellaData: capella.HashedBeaconState(
data: data, root: hash_tree_root(data)))
func new*(T: type ForkedHashedBeaconState, data: deneb.BeaconState):
ref ForkedHashedBeaconState =
(ref T)(kind: ConsensusFork.Deneb, denebData: deneb.HashedBeaconState(
data: data, root: hash_tree_root(data)))
template init*(T: type ForkedBeaconBlock, blck: phase0.BeaconBlock): T =
T(kind: ConsensusFork.Phase0, phase0Data: blck)
template init*(T: type ForkedBeaconBlock, blck: altair.BeaconBlock): T =
T(kind: ConsensusFork.Altair, altairData: blck)
template init*(T: type ForkedBeaconBlock, blck: bellatrix.BeaconBlock): T =
T(kind: ConsensusFork.Bellatrix, bellatrixData: blck)
template init*(T: type ForkedBeaconBlock, blck: capella.BeaconBlock): T =
T(kind: ConsensusFork.Capella, capellaData: blck)
template init*(T: type ForkedBeaconBlock, blck: deneb.BeaconBlock): T =
T(kind: ConsensusFork.Deneb, denebData: blck)
template init*(T: type ForkedTrustedBeaconBlock, blck: phase0.TrustedBeaconBlock): T =
T(kind: ConsensusFork.Phase0, phase0Data: blck)
template init*(T: type ForkedTrustedBeaconBlock, blck: altair.TrustedBeaconBlock): T =
T(kind: ConsensusFork.Altair, altairData: blck)
template init*(T: type ForkedTrustedBeaconBlock, blck: bellatrix.TrustedBeaconBlock): T =
T(kind: ConsensusFork.Bellatrix, bellatrixData: blck)
template init*(T: type ForkedTrustedBeaconBlock, blck: capella.TrustedBeaconBlock): T =
T(kind: ConsensusFork.Capella, capellaData: blck)
template init*(T: type ForkedSignedBeaconBlock, blck: phase0.SignedBeaconBlock): T =
T(kind: ConsensusFork.Phase0, phase0Data: blck)
template init*(T: type ForkedSignedBeaconBlock, blck: altair.SignedBeaconBlock): T =
T(kind: ConsensusFork.Altair, altairData: blck)
template init*(T: type ForkedSignedBeaconBlock, blck: bellatrix.SignedBeaconBlock): T =
T(kind: ConsensusFork.Bellatrix, bellatrixData: blck)
template init*(T: type ForkedSignedBeaconBlock, blck: capella.SignedBeaconBlock): T =
T(kind: ConsensusFork.Capella, capellaData: blck)
template init*(T: type ForkedSignedBeaconBlock, blck: deneb.SignedBeaconBlock): T =
T(kind: ConsensusFork.Deneb, denebData: blck)
func init*(T: type ForkedSignedBeaconBlock, forked: ForkedBeaconBlock,
blockRoot: Eth2Digest, signature: ValidatorSig): T =
case forked.kind
of ConsensusFork.Phase0:
T(kind: ConsensusFork.Phase0,
phase0Data: phase0.SignedBeaconBlock(message: forked.phase0Data,
root: blockRoot,
signature: signature))
of ConsensusFork.Altair:
T(kind: ConsensusFork.Altair,
altairData: altair.SignedBeaconBlock(message: forked.altairData,
root: blockRoot,
signature: signature))
of ConsensusFork.Bellatrix:
T(kind: ConsensusFork.Bellatrix,
bellatrixData: bellatrix.SignedBeaconBlock(message: forked.bellatrixData,
root: blockRoot,
signature: signature))
of ConsensusFork.Capella:
T(kind: ConsensusFork.Capella,
capellaData: capella.SignedBeaconBlock(message: forked.capellaData,
root: blockRoot,
signature: signature))
of ConsensusFork.Deneb:
T(kind: ConsensusFork.Deneb,
denebData: deneb.SignedBeaconBlock(message: forked.denebData,
root: blockRoot,
signature: signature))
func init*(T: type ForkedSignedBlindedBeaconBlock,
forked: ForkedBlindedBeaconBlock, blockRoot: Eth2Digest,
signature: ValidatorSig): T =
case forked.kind
of ConsensusFork.Phase0:
T(kind: ConsensusFork.Phase0,
phase0Data: phase0.SignedBeaconBlock(message: forked.phase0Data,
root: blockRoot,
signature: signature))
of ConsensusFork.Altair:
T(kind: ConsensusFork.Altair,
altairData: altair.SignedBeaconBlock(message: forked.altairData,
root: blockRoot,
signature: signature))
of ConsensusFork.Bellatrix:
T(kind: ConsensusFork.Bellatrix,
bellatrixData: default(bellatrix_mev.SignedBlindedBeaconBlock))
of ConsensusFork.Capella:
T(kind: ConsensusFork.Capella,
capellaData: capella_mev.SignedBlindedBeaconBlock(message: forked.capellaData,
signature: signature))
of ConsensusFork.Deneb:
T(kind: ConsensusFork.Deneb,
denebData: capella_mev.SignedBlindedBeaconBlock(message: forked.denebData,
signature: signature))
template init*(T: type ForkedMsgTrustedSignedBeaconBlock, blck: phase0.MsgTrustedSignedBeaconBlock): T =
T(kind: ConsensusFork.Phase0, phase0Data: blck)
template init*(T: type ForkedMsgTrustedSignedBeaconBlock, blck: altair.MsgTrustedSignedBeaconBlock): T =
T(kind: ConsensusFork.Altair, altairData: blck)
template init*(T: type ForkedMsgTrustedSignedBeaconBlock, blck: bellatrix.MsgTrustedSignedBeaconBlock): T =
T(kind: ConsensusFork.Bellatrix, bellatrixData: blck)
template init*(T: type ForkedMsgTrustedSignedBeaconBlock, blck: capella.MsgTrustedSignedBeaconBlock): T =
T(kind: ConsensusFork.Capella, capellaData: blck)
template init*(T: type ForkedMsgTrustedSignedBeaconBlock, blck: deneb.MsgTrustedSignedBeaconBlock): T =
T(kind: ConsensusFork.Deneb, denebData: blck)
template init*(T: type ForkedTrustedSignedBeaconBlock, blck: phase0.TrustedSignedBeaconBlock): T =
T(kind: ConsensusFork.Phase0, phase0Data: blck)
template init*(T: type ForkedTrustedSignedBeaconBlock, blck: altair.TrustedSignedBeaconBlock): T =
T(kind: ConsensusFork.Altair, altairData: blck)
template init*(T: type ForkedTrustedSignedBeaconBlock, blck: bellatrix.TrustedSignedBeaconBlock): T =
T(kind: ConsensusFork.Bellatrix, bellatrixData: blck)
template init*(T: type ForkedTrustedSignedBeaconBlock, blck: capella.TrustedSignedBeaconBlock): T =
T(kind: ConsensusFork.Capella, capellaData: blck)
template init*(T: type ForkedTrustedSignedBeaconBlock, blck: deneb.TrustedSignedBeaconBlock): T =
T(kind: ConsensusFork.Deneb, denebData: blck)
template toString*(kind: ConsensusFork): string =
case kind
of ConsensusFork.Phase0:
"phase0"
of ConsensusFork.Altair:
"altair"
of ConsensusFork.Bellatrix:
"bellatrix"
of ConsensusFork.Capella:
"capella"
of ConsensusFork.Deneb:
"deneb"
template toFork*[T:
phase0.BeaconState |
phase0.HashedBeaconState |
phase0.BeaconBlock |
phase0.SignedBeaconBlock |
phase0.TrustedBeaconBlock |
phase0.BeaconBlockBody |
phase0.SigVerifiedBeaconBlockBody |
phase0.TrustedBeaconBlockBody |
phase0.SigVerifiedSignedBeaconBlock |
phase0.MsgTrustedSignedBeaconBlock |
phase0.TrustedSignedBeaconBlock](
t: type T): ConsensusFork =
ConsensusFork.Phase0
template toFork*[T:
altair.BeaconState |
altair.HashedBeaconState |
altair.BeaconBlock |
altair.SignedBeaconBlock |
altair.TrustedBeaconBlock |
altair.BeaconBlockBody |
altair.SigVerifiedBeaconBlockBody |
altair.TrustedBeaconBlockBody |
altair.SigVerifiedSignedBeaconBlock |
altair.MsgTrustedSignedBeaconBlock |
altair.TrustedSignedBeaconBlock](
t: type T): ConsensusFork =
ConsensusFork.Altair
template toFork*[T:
bellatrix.BeaconState |
bellatrix.HashedBeaconState |
bellatrix.ExecutionPayload |
bellatrix.ExecutionPayloadForSigning |
bellatrix.ExecutionPayloadHeader |
bellatrix.BeaconBlock |
bellatrix.SignedBeaconBlock |
bellatrix.TrustedBeaconBlock |
bellatrix.BeaconBlockBody |
bellatrix.SigVerifiedBeaconBlockBody |
bellatrix.TrustedBeaconBlockBody |
bellatrix.SigVerifiedSignedBeaconBlock |
bellatrix.MsgTrustedSignedBeaconBlock |
bellatrix.TrustedSignedBeaconBlock](
t: type T): ConsensusFork =
ConsensusFork.Bellatrix
template toFork*[T:
capella.BeaconState |
capella.HashedBeaconState |
capella.ExecutionPayload |
capella.ExecutionPayloadForSigning |
capella.ExecutionPayloadHeader |
capella.BeaconBlock |
capella.SignedBeaconBlock |
capella.TrustedBeaconBlock |
capella.BeaconBlockBody |
capella.SigVerifiedBeaconBlockBody |
capella.TrustedBeaconBlockBody |
capella.SigVerifiedSignedBeaconBlock |
capella.MsgTrustedSignedBeaconBlock |
capella.TrustedSignedBeaconBlock](
t: type T): ConsensusFork =
ConsensusFork.Capella
template toFork*[T:
deneb.BeaconState |
deneb.HashedBeaconState |
deneb.ExecutionPayload |
deneb.ExecutionPayloadForSigning |
deneb.ExecutionPayloadHeader |
deneb.BeaconBlock |
deneb.SignedBeaconBlock |
deneb.TrustedBeaconBlock |
deneb.BeaconBlockBody |
deneb.SigVerifiedBeaconBlockBody |
deneb.TrustedBeaconBlockBody |
deneb.SigVerifiedSignedBeaconBlock |
deneb.MsgTrustedSignedBeaconBlock |
deneb.TrustedSignedBeaconBlock](
t: type T): ConsensusFork =
ConsensusFork.Deneb
template init*(T: type ForkedEpochInfo, info: phase0.EpochInfo): T =
T(kind: EpochInfoFork.Phase0, phase0Data: info)
template init*(T: type ForkedEpochInfo, info: altair.EpochInfo): T =
T(kind: EpochInfoFork.Altair, altairData: info)
template withState*(x: ForkedHashedBeaconState, body: untyped): untyped =
case x.kind
of ConsensusFork.Deneb:
const consensusFork {.inject, used.} = ConsensusFork.Deneb
template forkyState: untyped {.inject, used.} = x.denebData
body
of ConsensusFork.Capella:
const consensusFork {.inject, used.} = ConsensusFork.Capella
template forkyState: untyped {.inject, used.} = x.capellaData
body
of ConsensusFork.Bellatrix:
const consensusFork {.inject, used.} = ConsensusFork.Bellatrix
template forkyState: untyped {.inject, used.} = x.bellatrixData
body
of ConsensusFork.Altair:
const consensusFork {.inject, used.} = ConsensusFork.Altair
template forkyState: untyped {.inject, used.} = x.altairData
body
of ConsensusFork.Phase0:
const consensusFork {.inject, used.} = ConsensusFork.Phase0
template forkyState: untyped {.inject, used.} = x.phase0Data
body
template forky(
x: ForkedHashedBeaconState, kind: static ConsensusFork): untyped =
when kind == ConsensusFork.Deneb:
x.denebData
elif kind == ConsensusFork.Capella:
x.capellaData
elif kind == ConsensusFork.Bellatrix:
x.bellatrixData
elif kind == ConsensusFork.Altair:
x.altairData
elif kind == ConsensusFork.Phase0:
x.phase0Data
else:
static: raiseAssert "Unreachable"
template withEpochInfo*(x: ForkedEpochInfo, body: untyped): untyped =
case x.kind
of EpochInfoFork.Phase0:
const infoFork {.inject.} = EpochInfoFork.Phase0
template info: untyped {.inject.} = x.phase0Data
body
of EpochInfoFork.Altair:
const infoFork {.inject.} = EpochInfoFork.Altair
template info: untyped {.inject.} = x.altairData
body
template withEpochInfo*(
state: phase0.BeaconState, x: var ForkedEpochInfo, body: untyped): untyped =
if x.kind != EpochInfoFork.Phase0:
# Rare, should never happen even, so efficiency a non-issue
x = ForkedEpochInfo(kind: EpochInfoFork.Phase0)
template info: untyped {.inject.} = x.phase0Data
body
template withEpochInfo*(
state: altair.BeaconState | bellatrix.BeaconState | capella.BeaconState |
deneb.BeaconState,
x: var ForkedEpochInfo, body: untyped): untyped =
if x.kind != EpochInfoFork.Altair:
# Rare, so efficiency not critical
x = ForkedEpochInfo(kind: EpochInfoFork.Altair)
template info: untyped {.inject.} = x.altairData
body
{.push warning[ProveField]:off.}
func assign*(tgt: var ForkedHashedBeaconState, src: ForkedHashedBeaconState) =
if tgt.kind == src.kind:
withState(tgt):
template forkyTgt: untyped = forkyState
template forkySrc: untyped = src.forky(consensusFork)
assign(forkyTgt, forkySrc)
else:
# Ensure case object and discriminator get updated simultaneously, even
# with nimOldCaseObjects. This is infrequent.
tgt = src
{.pop.}
template getStateField*(x: ForkedHashedBeaconState, y: untyped): untyped =
# The use of `unsafeAddr` avoids excessive copying in certain situations, e.g.,
# ```
# for index, validator in getStateField(stateData.data, validators):
# ```
# Without `unsafeAddr`, the `validators` list would be copied to a temporary variable.
(block:
withState(x): unsafeAddr forkyState.data.y)[]
func getStateRoot*(x: ForkedHashedBeaconState): Eth2Digest =
withState(x): forkyState.root
{.push warning[ProveField]:off.} # https://github.com/nim-lang/Nim/issues/22060
func setStateRoot*(x: var ForkedHashedBeaconState, root: Eth2Digest) =
withState(x): forkyState.root = root
{.pop.}
func consensusForkAtEpoch*(cfg: RuntimeConfig, epoch: Epoch): ConsensusFork =
## Return the current fork for the given epoch.
static:
doAssert high(ConsensusFork) == ConsensusFork.Deneb
doAssert ConsensusFork.Deneb > ConsensusFork.Capella
doAssert ConsensusFork.Capella > ConsensusFork.Bellatrix
doAssert ConsensusFork.Bellatrix > ConsensusFork.Altair
doAssert ConsensusFork.Altair > ConsensusFork.Phase0
doAssert GENESIS_EPOCH == 0
if epoch >= cfg.DENEB_FORK_EPOCH: ConsensusFork.Deneb
elif epoch >= cfg.CAPELLA_FORK_EPOCH: ConsensusFork.Capella
elif epoch >= cfg.BELLATRIX_FORK_EPOCH: ConsensusFork.Bellatrix
elif epoch >= cfg.ALTAIR_FORK_EPOCH: ConsensusFork.Altair
else: ConsensusFork.Phase0
func consensusForkForDigest*(
forkDigests: ForkDigests, forkDigest: ForkDigest): Opt[ConsensusFork] =
static: doAssert high(ConsensusFork) == ConsensusFork.Deneb
if forkDigest == forkDigests.deneb:
ok ConsensusFork.Deneb
elif forkDigest == forkDigests.capella:
ok ConsensusFork.Capella
elif forkDigest == forkDigests.bellatrix:
ok ConsensusFork.Bellatrix
elif forkDigest == forkDigests.altair:
ok ConsensusFork.Altair
elif forkDigest == forkDigests.phase0:
ok ConsensusFork.Phase0
else:
err()
func atConsensusFork*(
forkDigests: ForkDigests, consensusFork: ConsensusFork): ForkDigest =
case consensusFork
of ConsensusFork.Deneb:
forkDigests.deneb
of ConsensusFork.Capella:
forkDigests.capella
of ConsensusFork.Bellatrix:
forkDigests.bellatrix
of ConsensusFork.Altair:
forkDigests.altair
of ConsensusFork.Phase0:
forkDigests.phase0
template atEpoch*(
forkDigests: ForkDigests, epoch: Epoch, cfg: RuntimeConfig): ForkDigest =
forkDigests.atConsensusFork(cfg.consensusForkAtEpoch(epoch))
template asSigned*(
x: ForkedMsgTrustedSignedBeaconBlock |
ForkedTrustedSignedBeaconBlock
): ForkedSignedBeaconBlock =
isomorphicCast[ForkedSignedBeaconBlock](x)
template asSigned*(
x: ref ForkedMsgTrustedSignedBeaconBlock |
ref ForkedTrustedSignedBeaconBlock
): ref ForkedSignedBeaconBlock =
isomorphicCast[ref ForkedSignedBeaconBlock](x)
template asMsgTrusted*(
x: ForkedSignedBeaconBlock |
ForkedTrustedSignedBeaconBlock
): ForkedMsgTrustedSignedBeaconBlock =
isomorphicCast[ForkedMsgTrustedSignedBeaconBlock](x)
template asMsgTrusted*(
x: ref ForkedSignedBeaconBlock |
ref ForkedTrustedSignedBeaconBlock
): ref ForkedMsgTrustedSignedBeaconBlock =
isomorphicCast[ref ForkedMsgTrustedSignedBeaconBlock](x)
template asTrusted*(
x: ForkedSignedBeaconBlock |
ForkedMsgTrustedSignedBeaconBlock
): ForkedTrustedSignedBeaconBlock =
isomorphicCast[ForkedTrustedSignedBeaconBlock](x)
template asTrusted*(
x: ref ForkedSignedBeaconBlock |
ref ForkedMsgTrustedSignedBeaconBlock
): ref ForkedTrustedSignedBeaconBlock =
isomorphicCast[ref ForkedTrustedSignedBeaconBlock](x)
template withBlck*(
x: ForkedBeaconBlock |
ForkedSignedBeaconBlock | ForkedMsgTrustedSignedBeaconBlock |
ForkedTrustedSignedBeaconBlock | ForkedBlindedBeaconBlock |
ForkedSignedBlindedBeaconBlock,
body: untyped): untyped =
case x.kind
of ConsensusFork.Phase0:
const consensusFork {.inject, used.} = ConsensusFork.Phase0
template blck: untyped {.inject.} = x.phase0Data
body
of ConsensusFork.Altair:
const consensusFork {.inject, used.} = ConsensusFork.Altair
template blck: untyped {.inject.} = x.altairData
body
of ConsensusFork.Bellatrix:
const consensusFork {.inject, used.} = ConsensusFork.Bellatrix
template blck: untyped {.inject.} = x.bellatrixData
body
of ConsensusFork.Capella:
const consensusFork {.inject, used.} = ConsensusFork.Capella
template blck: untyped {.inject.} = x.capellaData
body
of ConsensusFork.Deneb:
const consensusFork {.inject, used.} = ConsensusFork.Deneb
template blck: untyped {.inject.} = x.denebData
body
func proposer_index*(x: ForkedBeaconBlock): uint64 =
withBlck(x): blck.proposer_index
func hash_tree_root*(x: ForkedBeaconBlock): Eth2Digest =
withBlck(x): hash_tree_root(blck)
func hash_tree_root*(x: Web3SignerForkedBeaconBlock): Eth2Digest =
hash_tree_root(x.data)
template getForkedBlockField*(
x: ForkedSignedBeaconBlock |
ForkedMsgTrustedSignedBeaconBlock |
ForkedTrustedSignedBeaconBlock,
y: untyped): untyped =
# unsafeAddr avoids a copy of the field in some cases
(case x.kind
of ConsensusFork.Phase0: unsafeAddr x.phase0Data.message.y
of ConsensusFork.Altair: unsafeAddr x.altairData.message.y
of ConsensusFork.Bellatrix: unsafeAddr x.bellatrixData.message.y
of ConsensusFork.Capella: unsafeAddr x.capellaData.message.y
of ConsensusFork.Deneb: unsafeAddr x.denebData.message.y)[]
template signature*(x: ForkedSignedBeaconBlock |
ForkedMsgTrustedSignedBeaconBlock |
ForkedSignedBlindedBeaconBlock): ValidatorSig =
withBlck(x): blck.signature
template signature*(x: ForkedTrustedSignedBeaconBlock): TrustedSig =
withBlck(x): blck.signature
template root*(x: ForkedSignedBeaconBlock |
ForkedMsgTrustedSignedBeaconBlock |
ForkedTrustedSignedBeaconBlock): Eth2Digest =
withBlck(x): blck.root
template slot*(x: ForkedSignedBeaconBlock |
ForkedMsgTrustedSignedBeaconBlock |
ForkedTrustedSignedBeaconBlock): Slot =
withBlck(x): blck.message.slot
template shortLog*(x: ForkedBeaconBlock | ForkedBlindedBeaconBlock): auto =
withBlck(x): shortLog(blck)
template shortLog*(x: ForkedSignedBeaconBlock |
ForkedMsgTrustedSignedBeaconBlock |
ForkedTrustedSignedBeaconBlock |
ForkedSignedBlindedBeaconBlock): auto =
withBlck(x): shortLog(blck)
chronicles.formatIt ForkedBeaconBlock: it.shortLog
chronicles.formatIt ForkedSignedBeaconBlock: it.shortLog
chronicles.formatIt ForkedMsgTrustedSignedBeaconBlock: it.shortLog
chronicles.formatIt ForkedTrustedSignedBeaconBlock: it.shortLog
template withStateAndBlck*(
s: ForkedHashedBeaconState,
b: ForkedBeaconBlock | ForkedSignedBeaconBlock |
ForkedMsgTrustedSignedBeaconBlock |
ForkedTrustedSignedBeaconBlock,
body: untyped): untyped =
case s.kind
of ConsensusFork.Deneb:
const consensusFork {.inject.} = ConsensusFork.Deneb
template forkyState: untyped {.inject.} = s.denebData
template blck: untyped {.inject.} = b.denebData
body
of ConsensusFork.Capella:
const consensusFork {.inject.} = ConsensusFork.Capella
template forkyState: untyped {.inject.} = s.capellaData
template blck: untyped {.inject.} = b.capellaData
body
of ConsensusFork.Bellatrix:
const consensusFork {.inject.} = ConsensusFork.Bellatrix
template forkyState: untyped {.inject.} = s.bellatrixData
template blck: untyped {.inject.} = b.bellatrixData
body
of ConsensusFork.Altair:
const consensusFork {.inject.} = ConsensusFork.Altair
template forkyState: untyped {.inject.} = s.altairData
template blck: untyped {.inject.} = b.altairData
body
of ConsensusFork.Phase0:
const consensusFork {.inject.} = ConsensusFork.Phase0
template forkyState: untyped {.inject.} = s.phase0Data
template blck: untyped {.inject.} = b.phase0Data
body
func toBeaconBlockHeader*(
blck: SomeForkyBeaconBlock |
capella_mev.BlindedBeaconBlock | deneb_mev.BlindedBeaconBlock):
BeaconBlockHeader =
## Reduce a given `BeaconBlock` to its `BeaconBlockHeader`.
BeaconBlockHeader(
slot: blck.slot,
proposer_index: blck.proposer_index,
parent_root: blck.parent_root,
state_root: blck.state_root,
body_root: blck.body.hash_tree_root())
template toBeaconBlockHeader*(
blck: SomeForkySignedBeaconBlock): BeaconBlockHeader =
## Reduce a given `SignedBeaconBlock` to its `BeaconBlockHeader`.
blck.message.toBeaconBlockHeader
template toBeaconBlockHeader*(
blckParam: ForkedMsgTrustedSignedBeaconBlock |
ForkedTrustedSignedBeaconBlock): BeaconBlockHeader =
## Reduce a given signed beacon block to its `BeaconBlockHeader`.
withBlck(blckParam): blck.toBeaconBlockHeader()
func genesisFork*(cfg: RuntimeConfig): Fork =
Fork(
previous_version: cfg.GENESIS_FORK_VERSION,
current_version: cfg.GENESIS_FORK_VERSION,
epoch: GENESIS_EPOCH)
func altairFork*(cfg: RuntimeConfig): Fork =
Fork(
previous_version: cfg.GENESIS_FORK_VERSION,
current_version: cfg.ALTAIR_FORK_VERSION,
epoch: cfg.ALTAIR_FORK_EPOCH)
func bellatrixFork*(cfg: RuntimeConfig): Fork =
Fork(
previous_version: cfg.ALTAIR_FORK_VERSION,
current_version: cfg.BELLATRIX_FORK_VERSION,
epoch: cfg.BELLATRIX_FORK_EPOCH)
func capellaFork*(cfg: RuntimeConfig): Fork =
Fork(
previous_version: cfg.BELLATRIX_FORK_VERSION,
current_version: cfg.CAPELLA_FORK_VERSION,
epoch: cfg.CAPELLA_FORK_EPOCH)
func denebFork*(cfg: RuntimeConfig): Fork =
Fork(
previous_version: cfg.CAPELLA_FORK_VERSION,
current_version: cfg.DENEB_FORK_VERSION,
epoch: cfg.DENEB_FORK_EPOCH)
func forkAtEpoch*(cfg: RuntimeConfig, epoch: Epoch): Fork =
case cfg.consensusForkAtEpoch(epoch)
of ConsensusFork.Deneb: cfg.denebFork
of ConsensusFork.Capella: cfg.capellaFork
of ConsensusFork.Bellatrix: cfg.bellatrixFork
of ConsensusFork.Altair: cfg.altairFork
of ConsensusFork.Phase0: cfg.genesisFork
func forkVersionAtEpoch*(cfg: RuntimeConfig, epoch: Epoch): Version =
case cfg.consensusForkAtEpoch(epoch)
of ConsensusFork.Deneb: cfg.DENEB_FORK_VERSION
of ConsensusFork.Capella: cfg.CAPELLA_FORK_VERSION
of ConsensusFork.Bellatrix: cfg.BELLATRIX_FORK_VERSION
of ConsensusFork.Altair: cfg.ALTAIR_FORK_VERSION
of ConsensusFork.Phase0: cfg.GENESIS_FORK_VERSION
func nextForkEpochAtEpoch*(cfg: RuntimeConfig, epoch: Epoch): Epoch =
static: doAssert high(ConsensusFork) == ConsensusFork.Deneb
case cfg.consensusForkAtEpoch(epoch)
of ConsensusFork.Deneb: FAR_FUTURE_EPOCH
of ConsensusFork.Capella: cfg.DENEB_FORK_EPOCH
of ConsensusFork.Bellatrix: cfg.CAPELLA_FORK_EPOCH
of ConsensusFork.Altair: cfg.BELLATRIX_FORK_EPOCH
of ConsensusFork.Phase0: cfg.ALTAIR_FORK_EPOCH
func forkVersion*(cfg: RuntimeConfig, consensusFork: ConsensusFork): Version =
case consensusFork
of ConsensusFork.Phase0: cfg.GENESIS_FORK_VERSION
of ConsensusFork.Altair: cfg.ALTAIR_FORK_VERSION
of ConsensusFork.Bellatrix: cfg.BELLATRIX_FORK_VERSION
of ConsensusFork.Capella: cfg.CAPELLA_FORK_VERSION
of ConsensusFork.Deneb: cfg.DENEB_FORK_VERSION
func lcDataForkAtConsensusFork*(
consensusFork: ConsensusFork): LightClientDataFork =
static: doAssert LightClientDataFork.high == LightClientDataFork.Deneb
if consensusFork >= ConsensusFork.Deneb:
LightClientDataFork.Deneb
elif consensusFork >= ConsensusFork.Capella:
LightClientDataFork.Capella
elif consensusFork >= ConsensusFork.Altair:
LightClientDataFork.Altair
else:
LightClientDataFork.None
func getForkSchedule*(cfg: RuntimeConfig): array[5, Fork] =
## This procedure returns list of known and/or scheduled forks.
##
## This procedure is used by HTTP REST framework and validator client.
##
## NOTE: Update this procedure when new fork will be scheduled.
[cfg.genesisFork(), cfg.altairFork(), cfg.bellatrixFork(), cfg.capellaFork(),
cfg.denebFork()]
type
# The first few fields of a state, shared across all forks
BeaconStateHeader = object
genesis_time: uint64
genesis_validators_root: Eth2Digest
slot: Slot
func readSszForkedHashedBeaconState*(
consensusFork: ConsensusFork, data: openArray[byte]):
ForkedHashedBeaconState {.raises: [Defect, SszError].} =
# TODO https://github.com/nim-lang/Nim/issues/19357
result = ForkedHashedBeaconState(kind: consensusFork)
withState(result):
readSszBytes(data, forkyState.data)
forkyState.root = hash_tree_root(forkyState.data)
template readSszForkedHashedBeaconState*(
cfg: RuntimeConfig, slot: Slot, data: openArray[byte]):
ForkedHashedBeaconState =
cfg.consensusForkAtEpoch(slot.epoch()).readSszForkedHashedBeaconState(data)
func readSszForkedHashedBeaconState*(cfg: RuntimeConfig, data: openArray[byte]):
ForkedHashedBeaconState {.raises: [SerializationError].} =
## Read a state picking the right fork by first reading the slot from the byte
## source
if data.len() < sizeof(BeaconStateHeader):
raise (ref MalformedSszError)(msg: "Not enough data for BeaconState header")
let header = SSZ.decode(
data.toOpenArray(0, sizeof(BeaconStateHeader) - 1),
BeaconStateHeader)
# TODO https://github.com/nim-lang/Nim/issues/19357
result = readSszForkedHashedBeaconState(cfg, header.slot, data)
type
ForkedBeaconBlockHeader = object
message*: uint32 # message offset
signature*: ValidatorSig
slot: Slot # start of BeaconBlock
func readSszForkedSignedBeaconBlock*(
cfg: RuntimeConfig, data: openArray[byte]):
ForkedSignedBeaconBlock {.raises: [SerializationError].} =
## Helper to read a header from bytes when it's not certain what kind of block
## it is
if data.len() < sizeof(ForkedBeaconBlockHeader):
raise (ref MalformedSszError)(msg: "Not enough data for SignedBeaconBlock header")
let header = SSZ.decode(
data.toOpenArray(0, sizeof(ForkedBeaconBlockHeader) - 1),
ForkedBeaconBlockHeader)
# TODO https://github.com/nim-lang/Nim/issues/19357
result = ForkedSignedBeaconBlock(
kind: cfg.consensusForkAtEpoch(header.slot.epoch()))
withBlck(result):
readSszBytes(data, blck)
# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.1/specs/phase0/beacon-chain.md#compute_fork_data_root
func compute_fork_data_root*(current_version: Version,
genesis_validators_root: Eth2Digest): Eth2Digest =
## Return the 32-byte fork data root for the ``current_version`` and
## ``genesis_validators_root``.
## This is used primarily in signature domains to avoid collisions across
## forks/chains.
hash_tree_root(ForkData(
current_version: current_version,
genesis_validators_root: genesis_validators_root
))
# https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.1/specs/phase0/beacon-chain.md#compute_fork_digest
func compute_fork_digest*(current_version: Version,
genesis_validators_root: Eth2Digest): ForkDigest =
## Return the 4-byte fork digest for the ``current_version`` and
## ``genesis_validators_root``.
## This is a digest primarily used for domain separation on the p2p layer.
## 4-bytes suffices for practical separation of forks/chains.
array[4, byte](result)[0..3] =
compute_fork_data_root(
current_version, genesis_validators_root).data.toOpenArray(0, 3)
func init*(T: type ForkDigests,
cfg: RuntimeConfig,
genesis_validators_root: Eth2Digest): T =
static: doAssert high(ConsensusFork) == ConsensusFork.Deneb
T(
phase0:
compute_fork_digest(cfg.GENESIS_FORK_VERSION, genesis_validators_root),
altair:
compute_fork_digest(cfg.ALTAIR_FORK_VERSION, genesis_validators_root),
bellatrix:
compute_fork_digest(cfg.BELLATRIX_FORK_VERSION, genesis_validators_root),
capella:
compute_fork_digest(cfg.CAPELLA_FORK_VERSION, genesis_validators_root),
deneb:
compute_fork_digest(cfg.DENEB_FORK_VERSION, genesis_validators_root)
)
func toBlockId*(header: BeaconBlockHeader): BlockId =
BlockId(root: header.hash_tree_root(), slot: header.slot)
func toBlockId*(blck: SomeForkySignedBeaconBlock): BlockId =
BlockId(root: blck.root, slot: blck.message.slot)
func toBlockId*(blck: ForkedSignedBeaconBlock |
ForkedMsgTrustedSignedBeaconBlock |
ForkedTrustedSignedBeaconBlock): BlockId =
withBlck(blck): BlockId(root: blck.root, slot: blck.message.slot)
func historical_summaries*(state: ForkedHashedBeaconState):
HashList[HistoricalSummary, Limit HISTORICAL_ROOTS_LIMIT] =
withState(state):
when consensusFork >= ConsensusFork.Capella:
forkyState.data.historical_summaries
else:
HashList[HistoricalSummary, Limit HISTORICAL_ROOTS_LIMIT]()
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