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types.nim
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types.nim
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# Nimbus
# Copyright (c) 2018 Status Research & Development GmbH
# Licensed under either of
# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
# http:https://www.apache.org/licenses/LICENSE-2.0)
# * MIT license ([LICENSE-MIT](LICENSE-MIT) or
# http:https://opensource.org/licenses/MIT)
# at your option. This file may not be copied, modified, or distributed except
# according to those terms.
import
tables, eth/common,
options, json, sets,
./memory, ./stack, ./code_stream, ../forks,
./interpreter/[gas_costs, opcode_values],
# TODO - will be hidden at a lower layer
../db/[db_chain, accounts_cache]
when defined(evmc_enabled):
import
./evmc_api
# Select between small-stack recursion and no recursion. Both are good, fast,
# low resource using methods. Keep both here because true EVMC API requires
# the small-stack method, but Chronos `async` is better without recursion.
const vm_use_recursion* = defined(evmc_enabled)
type
VMFlag* = enum
ExecutionOK
GenerateWitness
ClearCache
BaseVMState* = ref object of RootObj
prevHeaders* : seq[BlockHeader]
chainDB* : BaseChainDB
parent* : BlockHeader
timestamp* : EthTime
gasLimit* : GasInt
fee* : Option[UInt256]
prevRandao* : Hash256
blockDifficulty*: UInt256
ttdReached* : bool
name* : string
flags* : set[VMFlag]
tracer* : TransactionTracer
logEntries* : seq[Log]
receipts* : seq[Receipt]
stateDB* : AccountsCache
cumulativeGasUsed*: GasInt
touchedAccounts*: HashSet[EthAddress]
selfDestructs* : HashSet[EthAddress]
txOrigin* : EthAddress
txGasPrice* : GasInt
gasCosts* : GasCosts
fork* : Fork
minerAddress* : EthAddress
TracerFlags* {.pure.} = enum
EnableTracing
DisableStorage
DisableMemory
DisableStack
DisableState
DisableStateDiff
EnableAccount
TransactionTracer* = object
trace*: JsonNode
flags*: set[TracerFlags]
accounts*: HashSet[EthAddress]
storageKeys*: seq[HashSet[UInt256]]
Computation* = ref object
# The execution computation
vmState*: BaseVMState
when defined(evmc_enabled):
host*: HostContext
msg*: Message
memory*: Memory
stack*: Stack
returnStack*: seq[int]
gasMeter*: GasMeter
code*: CodeStream
output*: seq[byte]
returnData*: seq[byte]
error*: Error
touchedAccounts*: HashSet[EthAddress]
selfDestructs*: HashSet[EthAddress]
logEntries*: seq[Log]
savePoint*: SavePoint
instr*: Op
opIndex*: int
when defined(evmc_enabled):
child*: ref nimbus_message
res*: nimbus_result
else:
parent*, child*: Computation
continuation*: proc() {.gcsafe.}
Error* = ref object
info*: string
burnsGas*: bool
GasMeter* = object
gasRefunded*: GasInt
gasRemaining*: GasInt
CallKind* = enum
evmcCall = 0, # CALL
evmcDelegateCall = 1, # DELEGATECALL
evmcCallCode = 2, # CALLCODE
evmcCreate = 3, # CREATE
evmcCreate2 = 4 # CREATE2
MsgFlags* = enum
emvcNoFlags = 0
emvcStatic = 1
Message* = ref object
kind*: CallKind
depth*: int
gas*: GasInt
sender*: EthAddress
contractAddress*: EthAddress
codeAddress*: EthAddress
value*: UInt256
data*: seq[byte]
flags*: MsgFlags