138 lines
4.1 KiB
Nim
138 lines
4.1 KiB
Nim
# Nimbus
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# Copyright (c) 2018 Status Research & Development GmbH
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# Licensed under either of
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# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
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# * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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import
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tables, eth/common, options,
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./constants, json, sets,
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./vm/[memory, stack, code_stream],
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./vm/interpreter/[gas_costs, opcode_values, vm_forks], # TODO - will be hidden at a lower layer
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./db/[db_chain, state_db]
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type
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BaseVMState* = ref object of RootObj
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prevHeaders* : seq[BlockHeader]
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chaindb* : BaseChainDB
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accessLogs* : AccessLogs
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blockHeader* : BlockHeader
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name* : string
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tracingEnabled*: bool
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tracer* : TransactionTracer
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logEntries* : seq[Log]
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receipts* : seq[Receipt]
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accountDb* : AccountStateDB
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AccessLogs* = ref object
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reads*: Table[string, string]
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writes*: Table[string, string]
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TracerFlags* {.pure.} = enum
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EnableTracing
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DisableStorage
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DisableMemory
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DisableStack
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DisableState
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DisableStateDiff
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EnableAccount
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TransactionTracer* = object
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trace*: JsonNode
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gasRemaining*: GasInt
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flags*: set[TracerFlags]
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accounts*: HashSet[EthAddress]
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storageKeys*: seq[HashSet[Uint256]]
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OpcodeExecutor* = proc(computation: var BaseComputation)
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BaseComputation* = ref object of RootObj
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# The execution computation
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vmState*: BaseVMState
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msg*: Message
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memory*: Memory
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stack*: Stack
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gasMeter*: GasMeter
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code*: CodeStream
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children*: seq[BaseComputation]
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rawOutput*: seq[byte]
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returnData*: seq[byte]
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error*: Error
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shouldEraseReturnData*: bool
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accountsToDelete*: Table[EthAddress, EthAddress]
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opcodes*: Table[Op, proc(computation: var BaseComputation){.nimcall.}]
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gasCosts*: GasCosts # TODO - will be hidden at a lower layer
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opCodeExec*: OpcodeExecutor
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forkOverride*: Option[Fork]
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Error* = ref object
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info*: string
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burnsGas*: bool
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erasesReturnData*: bool
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Opcode* = ref object of RootObj
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# TODO can't use a stack-allocated object because
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# "BaseComputation is not a concrete type"
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# TODO: We can probably remove this.
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kind*: Op
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runLogic*: proc(computation: var BaseComputation)
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GasMeter* = object
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gasRefunded*: GasInt
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startGas*: GasInt
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gasRemaining*: GasInt
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CallKind* = enum
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evmcCall = 0, # CALL
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evmcDelegateCall = 1, # DELEGATECALL
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evmcCallCode = 2, # CALLCODE
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evmcCreate = 3, # CREATE
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evmcCreate2 = 4 # CREATE2
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MsgFlags* = enum
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emvcNoFlags = 0
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emvcStatic = 1
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Message* = ref object
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# A message for VM computation
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# https://github.com/ethereum/evmc/blob/master/include/evmc/evmc.h
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# depth = None
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# code = None
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# codeAddress = None
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# createAddress = None
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# logger = logging.getLogger("evm.vm.message.Message")
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destination*: EthAddress
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sender*: EthAddress
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value*: UInt256
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data*: seq[byte]
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# size_t input_size;
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codeHash*: UInt256
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create2Salt*: Uint256
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gas*: GasInt
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gasPrice*: GasInt
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depth*: int
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kind*: CallKind
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flags*: MsgFlags
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# Not in EVMC API
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# TODO: Done via callback function (v)table in EVMC
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code*: seq[byte]
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internalOrigin*: EthAddress
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internalCodeAddress*: EthAddress
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internalStorageAddress*: EthAddress
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MessageOptions* = ref object
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origin*: EthAddress
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depth*: int
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createAddress*: EthAddress
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codeAddress*: EthAddress
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flags*: MsgFlags
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