133 lines
4.0 KiB
Nim
133 lines
4.0 KiB
Nim
# Nimbus
|
|
# Copyright (c) 2018 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
|
|
../constants,
|
|
../db/accounts_cache,
|
|
./interpreter/op_codes,
|
|
./state,
|
|
./transaction_tracer,
|
|
./types,
|
|
chronicles,
|
|
eth/[common, keys],
|
|
options,
|
|
sets
|
|
|
|
logScope:
|
|
topics = "vm compu helper"
|
|
|
|
when defined(chronicles_log_level):
|
|
import stew/byteutils
|
|
|
|
template accountExists*(c: Computation, address: EthAddress): bool =
|
|
if c.fork >= FkSpurious:
|
|
not c.vmState.readOnlyStateDB.isDeadAccount(address)
|
|
else:
|
|
c.vmState.readOnlyStateDB.accountExists(address)
|
|
|
|
proc addLogEntry*(c: Computation, log: Log) {.inline.} =
|
|
c.logEntries.add(log)
|
|
|
|
template fork*(c: Computation): untyped =
|
|
c.vmState.fork
|
|
|
|
template gasCosts*(c: Computation): untyped =
|
|
c.vmState.gasCosts
|
|
|
|
template getBalance*(c: Computation, address: EthAddress): Uint256 =
|
|
c.vmState.readOnlyStateDB.getBalance(address)
|
|
|
|
template getBlockHash*(c: Computation, blockNumber: Uint256): Hash256 =
|
|
c.vmState.getAncestorHash(blockNumber.vmWordToBlockNumber)
|
|
|
|
template getBlockNumber*(c: Computation): Uint256 =
|
|
c.vmState.blockNumber.blockNumberToVmWord
|
|
|
|
template getChainId*(c: Computation): uint =
|
|
c.vmState.chaindb.config.chainId.uint
|
|
|
|
template getCode*(c: Computation, address: EthAddress): seq[byte] =
|
|
c.vmState.readOnlyStateDB.getCode(address)
|
|
|
|
template getCodeHash*(c: Computation, address: EthAddress): Hash256 =
|
|
let
|
|
db = c.vmState.readOnlyStateDB
|
|
if not db.accountExists(address) or db.isEmptyAccount(address):
|
|
default(Hash256)
|
|
else:
|
|
db.getCodeHash(address)
|
|
|
|
template getCodeSize*(c: Computation, address: EthAddress): uint =
|
|
uint(c.vmState.readOnlyStateDB.getCodeSize(address))
|
|
|
|
template getCoinbase*(c: Computation): EthAddress =
|
|
c.vmState.coinbase
|
|
|
|
template getDifficulty*(c: Computation): DifficultyInt =
|
|
c.vmState.difficulty
|
|
|
|
template getGasLimit*(c: Computation): GasInt =
|
|
c.vmState.gasLimit
|
|
|
|
template getGasPrice*(c: Computation): GasInt =
|
|
c.vmState.txGasPrice
|
|
|
|
template getOrigin*(c: Computation): EthAddress =
|
|
c.vmState.txOrigin
|
|
|
|
template getStorage*(c: Computation, slot: Uint256): Uint256 =
|
|
c.vmState.readOnlyStateDB.getStorage(c.msg.contractAddress, slot)
|
|
|
|
template getTimestamp*(c: Computation): int64 =
|
|
c.vmState.timestamp.toUnix
|
|
|
|
proc prepareTracer*(c: Computation) {.inline.} =
|
|
c.vmState.tracer.prepare(c.msg.depth)
|
|
|
|
proc selfDestruct*(c: Computation, beneficiary: EthAddress) =
|
|
c.vmState.mutateStateDB:
|
|
let
|
|
localBalance = c.getBalance(c.msg.contractAddress)
|
|
beneficiaryBalance = c.getBalance(beneficiary)
|
|
|
|
# Transfer to beneficiary
|
|
db.setBalance(beneficiary, localBalance + beneficiaryBalance)
|
|
|
|
# Zero the balance of the address being deleted.
|
|
# This must come after sending to beneficiary in case the
|
|
# contract named itself as the beneficiary.
|
|
db.setBalance(c.msg.contractAddress, 0.u256)
|
|
|
|
trace "SELFDESTRUCT",
|
|
contractAddress = c.msg.contractAddress.toHex,
|
|
localBalance = localBalance.toString,
|
|
beneficiary = beneficiary.toHex
|
|
|
|
c.touchedAccounts.incl beneficiary
|
|
# Register the account to be deleted
|
|
c.suicides.incl(c.msg.contractAddress)
|
|
|
|
proc setError*(c: Computation, msg: string, burnsGas = false) {.inline.} =
|
|
c.error = Error(info: msg, burnsGas: burnsGas)
|
|
|
|
proc traceOpCodeStarted*(c: Computation, op: Op): int {.inline.} =
|
|
c.vmState.tracer.traceOpCodeStarted(c, op)
|
|
|
|
proc traceOpCodeEnded*(c: Computation, op: Op, lastIndex: int) {.inline.} =
|
|
c.vmState.tracer.traceOpCodeEnded(c, op, lastIndex)
|
|
|
|
proc tracingEnabled*(c: Computation): bool {.inline.} =
|
|
TracerFlags.EnableTracing in c.vmState.tracer.flags
|
|
|
|
|
|
# deprecated, related to nimvm/evmc implementation
|
|
proc execSelfDestruct*(c: Computation, address: EthAddress) {.deprecated.} =
|
|
c.selfDestruct(address)
|