implement transaction tracer
This commit is contained in:
andri lim
parent
0729c070bf
commit
1ff02f433b
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@ -0,0 +1,40 @@
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import eth_trie/db, ranges
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type
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CaptureFlags* {.pure.} = enum
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PersistPut
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PersistDel
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DB = TrieDatabaseRef
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BytesRange = Range[byte]
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CaptureDB* = ref object of RootObj
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srcDb: DB
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dstDb: DB
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flags: set[CaptureFlags]
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proc get*(db: CaptureDB, key: openArray[byte]): seq[byte] =
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result = db.dstDb.get(key)
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if result.len != 0: return
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result = db.srcDb.get(key)
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db.dstDb.put(key, result)
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proc put*(db: CaptureDB, key, value: openArray[byte]) =
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db.dstDb.put(key, value)
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if CaptureFlags.PersistPut in db.flags:
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db.srcDb.put(key, value)
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proc contains*(db: CaptureDB, key: openArray[byte]): bool =
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result = db.srcDb.contains(key)
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assert(db.dstDb.contains(key) == result)
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proc del*(db: CaptureDB, key: openArray[byte]) =
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db.dstDb.del(key)
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if CaptureFlags.PersistDel in db.flags:
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db.srcDb.del(key)
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proc newCaptureDB*(srcDb, dstDb: DB, flags: set[CaptureFlags] = {}): CaptureDB =
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result.new()
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result.srcDb = srcDb
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result.dstDb = dstDb
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result.flags = flags
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@ -1,8 +1,6 @@
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import ../db/[db_chain, state_db], eth_common, chronicles, ../vm_state, ../vm_types, ../transaction, ranges,
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../vm/[computation, interpreter_dispatch, message], ../constants, stint, nimcrypto,
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../vm_state_transactions,
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eth_trie/db, eth_trie, rlp,
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sugar
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../vm_state_transactions, sugar, ../utils, eth_trie/db
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type
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Chain* = ref object of AbstractChainDB
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@ -32,7 +30,7 @@ method getSuccessorHeader*(c: Chain, h: BlockHeader, output: var BlockHeader): b
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method getBlockBody*(c: Chain, blockHash: KeccakHash): BlockBodyRef =
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result = nil
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proc processTransaction(db: var AccountStateDB, t: Transaction, sender: EthAddress, head: BlockHeader, chainDB: BaseChainDB): UInt256 =
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proc processTransaction*(db: var AccountStateDB, t: Transaction, sender: EthAddress, vmState: BaseVMState): UInt256 =
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## Process the transaction, write the results to db.
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## Returns amount of ETH to be rewarded to miner
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echo "Sender: ", sender
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@ -70,8 +68,7 @@ proc processTransaction(db: var AccountStateDB, t: Transaction, sender: EthAddre
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else:
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if t.isContractCreation:
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# TODO: re-derive sender in callee for cleaner interface, perhaps
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var vmState = newBaseVMState(head, chainDB)
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return applyCreateTransaction(db, t, head, vmState, sender)
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return applyCreateTransaction(db, t, vmState, sender)
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else:
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let code = db.getCode(t.to)
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@ -99,12 +96,6 @@ proc processTransaction(db: var AccountStateDB, t: Transaction, sender: EthAddre
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return gasUsed.u256 * t.gasPrice.u256
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proc calcTxRoot(transactions: openarray[Transaction]): Hash256 =
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var tr = initHexaryTrie(newMemoryDB())
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for i, t in transactions:
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tr.put(rlp.encode(i).toRange, rlp.encode(t).toRange)
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return tr.rootHash
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method persistBlocks*(c: Chain, headers: openarray[BlockHeader], bodies: openarray[BlockBody]) =
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# Run the VM here
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assert(headers.len == bodies.len)
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@ -135,7 +126,7 @@ method persistBlocks*(c: Chain, headers: openarray[BlockHeader], bodies: openarr
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for t in bodies[i].transactions:
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var sender: EthAddress
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if t.getSender(sender):
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gasReward += processTransaction(stateDb, t, sender, head, c.db)
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gasReward += processTransaction(stateDb, t, sender, vmState)
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else:
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assert(false, "Could not get sender")
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@ -11,7 +11,7 @@ import
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strutils, hexstrings, eth_p2p, options,
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../db/[db_chain, state_db, storage_types],
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json_rpc/rpcserver, json, macros, rpc_utils,
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eth_common
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eth_common, ../tracer, ../vm_state, ../vm_types
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type
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TraceTxOptions = object
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@ -19,10 +19,13 @@ type
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disableMemory: Option[bool]
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disableStack: Option[bool]
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proc setupDebugRpc*(chain: BaseChainDB, rpcsrv: RpcServer) =
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proc isTrue(x: Option[bool]): bool =
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result = x.isSome and x.get() == true
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proc setupDebugRpc*(chainDB: BaseChainDB, rpcsrv: RpcServer) =
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proc getBlockBody(hash: Hash256): BlockBody =
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if not chain.getBlockBody(hash, result):
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if not chainDB.getBlockBody(hash, result):
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raise newException(ValueError, "Error when retrieving block body")
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rpcsrv.rpc("debug_traceTransaction") do(data: HexDataStr, options: Option[TraceTxOptions]) -> JsonNode:
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@ -39,7 +42,18 @@ proc setupDebugRpc*(chain: BaseChainDB, rpcsrv: RpcServer) =
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## * disableStack: BOOL. Setting this to true will disable stack capture (default = false).
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let
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txHash = strToHash(data.string)
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txDetails = chain.getTransactionKey(txHash)
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blockHeader = chain.getBlockHeader(txDetails.blockNumber)
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blockHash = chain.getBlockHash(txDetails.blockNumber)
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txDetails = chainDB.getTransactionKey(txHash)
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blockHeader = chainDB.getBlockHeader(txDetails.blockNumber)
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blockHash = chainDB.getBlockHash(txDetails.blockNumber)
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blockBody = getBlockBody(blockHash)
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var
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flags: set[TracerFlags]
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if options.isSome:
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let opts = options.get
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if opts.disableStorage.isTrue: flags.incl TracerFlags.DisableStorage
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if opts.disableMemory.isTrue: flags.incl TracerFlags.DisableMemory
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if opts.disableStack.isTrue: flags.incl TracerFlags.DisableStack
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traceTransaction(chainDB, blockHeader, blockBody, txDetails.index, flags)
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@ -0,0 +1,24 @@
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import
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db/[db_chain, state_db], eth_common, utils, json,
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constants, vm_state, vm_types, transaction, p2p/chain
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proc traceTransaction*(db: BaseChainDB, header: BlockHeader,
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body: BlockBody, txIndex: int, tracerFlags: set[TracerFlags]): JsonNode =
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let head = db.getCanonicalHead()
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assert(head.blockNumber == header.blockNumber - 1)
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var stateDb = newAccountStateDB(db.db, head.stateRoot, db.pruneTrie)
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assert(body.transactions.calcTxRoot == header.txRoot)
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if header.txRoot == BLANK_ROOT_HASH: return
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let vmState = newBaseVMState(head, db, tracerFlags + {EnableTracing})
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assert(body.transactions.len != 0)
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for idx, tx in body.transactions:
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var sender: EthAddress
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if tx.getSender(sender):
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discard processTransaction(stateDb, tx, sender, vmState)
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if idx == txIndex: break
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else:
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assert(false, "Could not get sender")
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vmState.getTracingResult()
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@ -0,0 +1,13 @@
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import eth_trie/db, eth_trie, rlp, eth_common
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proc calcRootHash[T](items: openArray[T]): Hash256 =
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var tr = initHexaryTrie(newMemoryDB())
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for i, t in items:
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tr.put(rlp.encode(i).toRange, rlp.encode(t).toRange)
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return tr.rootHash
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template calcTxRoot*(transactions: openArray[Transaction]): Hash256 =
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calcRootHash(transactions)
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template calcReceiptRoot*(receipts: openArray[Receipt]): Hash256 =
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calcRootHash(receipts)
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@ -11,7 +11,8 @@ import
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../constants, ../errors, ../validation, ../vm_state, ../vm_types,
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./interpreter/[opcode_values, gas_meter, gas_costs, vm_forks],
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./code_stream, ./memory, ./message, ./stack, ../db/[state_db, db_chain],
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../utils/header, byteutils, ranges, eth_keys, precompiles
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../utils/header, byteutils, ranges, eth_keys, precompiles,
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transaction_tracer
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logScope:
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topics = "vm computation"
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@ -122,7 +123,7 @@ proc applyMessage(computation: var BaseComputation, opCode: static[Op]) =
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computation.gasMeter.returnGas(computation.msg.gas)
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push: 0
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return
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newBalance = senderBalance - computation.msg.value
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computation.vmState.mutateStateDb:
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db.setBalance(computation.msg.sender, newBalance)
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@ -208,10 +209,10 @@ proc generateChildComputation*(fork: Fork, computation: BaseComputation, childMs
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computation.vmState,
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computation.vmState.blockHeader.blockNumber,
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childMsg)
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# Copy the fork op code executor proc (assumes child computation is in the same fork)
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childComp.opCodeExec = computation.opCodeExec
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if childMsg.isCreate:
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fork.applyCreateMessage(childComp, opCode)
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else:
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@ -284,3 +285,12 @@ proc getGasRemaining*(c: BaseComputation): GasInt =
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result = 0
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else:
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result = c.gasMeter.gasRemaining
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template tracingEnabled*(c: BaseComputation): bool =
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c.vmState.tracingEnabled
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template traceOpCodeStarted*(c: BaseComputation, op: string) =
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traceOpCodeStarted(c.vmState.tracer, c, op)
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proc traceOpCodeEnded*(c: BaseComputation) =
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c.vmState.tracer.traceOpCodeEnded(c)
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@ -11,7 +11,7 @@ import
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./interpreter/[opcode_values, opcodes_impl, vm_forks, gas_costs, gas_meter, utils/macros_gen_opcodes],
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./code_stream,
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../vm_types, ../errors, precompiles,
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./stack, ./computation, ./transaction_tracer, terminal # Those are only needed for logging
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./stack, ./computation, terminal # Those are only needed for logging
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func invalidInstruction*(computation: var BaseComputation) {.inline.} =
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raise newException(ValueError, "Invalid instruction, received an opcode not implemented in the current fork.")
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@ -192,19 +192,19 @@ proc opTableToCaseStmt(opTable: array[Op, NimNode], computation: NimNode): NimNo
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if BaseGasCosts[op].kind == GckFixed:
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quote do:
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if `computation`.tracingEnabled:
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`computation`.tracer.traceOpCodeStarted(`computation`, $`asOp`)
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`computation`.traceOpCodeStarted($`asOp`)
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`computation`.gasMeter.consumeGas(`computation`.gasCosts[`asOp`].cost, reason = $`asOp`)
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`opImpl`(`computation`)
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if `computation`.tracingEnabled:
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`computation`.tracer.traceOpCodeEnded(`computation`)
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`computation`.traceOpCodeEnded()
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`instr` = `computation`.code.next()
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else:
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quote do:
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if `computation`.tracingEnabled:
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`computation`.tracer.traceOpCodeStarted(`computation`, $`asOp`)
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`computation`.traceOpCodeStarted($`asOp`)
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`opImpl`(`computation`)
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if `computation`.tracingEnabled:
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`computation`.tracer.traceOpCodeEnded(`computation`)
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`computation`.traceOpCodeEnded()
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when `asOp` in {Return, Revert, SelfDestruct}:
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break
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else:
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@ -3,38 +3,45 @@ import
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eth_common, stint, byteutils,
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../vm_types, memory, stack
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proc initTrace(t: var TransactionTracer) =
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t.trace = newJObject()
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t.trace["structLogs"] = newJArray()
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proc initTracer*(tracer: var TransactionTracer, flags: set[TracerFlags] = {}) =
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tracer.trace = newJObject()
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tracer.trace["structLogs"] = newJArray()
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tracer.flags = flags
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proc traceOpCodeStarted*(t: var TransactionTracer, c: BaseComputation, op: string) =
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if unlikely t.trace.isNil:
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t.initTrace()
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proc traceOpCodeStarted*(tracer: var TransactionTracer, c: BaseComputation, op: string) =
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if unlikely tracer.trace.isNil:
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tracer.initTracer()
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let j = newJObject()
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t.trace["structLogs"].add(j)
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tracer.trace["structLogs"].add(j)
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j["op"] = %op.toUpperAscii
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j["pc"] = %(c.code.pc - 1)
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j["depth"] = %1 # stub
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j["gas"] = %c.gasMeter.gasRemaining
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t.gasRemaining = c.gasMeter.gasRemaining
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tracer.gasRemaining = c.gasMeter.gasRemaining
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# log stack
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let st = newJArray()
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for v in c.stack.values:
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st.add(%v.dumpHex())
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j["stack"] = st
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if TracerFlags.DisableStack notin tracer.flags:
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let st = newJArray()
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for v in c.stack.values:
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st.add(%v.dumpHex())
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j["stack"] = st
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# log memory
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let mem = newJArray()
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const chunkLen = 32
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let numChunks = c.memory.len div chunkLen
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for i in 0 ..< numChunks:
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mem.add(%c.memory.bytes.toOpenArray(i * chunkLen, (i + 1) * chunkLen - 1).toHex())
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j["memory"] = mem
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if TracerFlags.DisableMemory notin tracer.flags:
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let mem = newJArray()
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const chunkLen = 32
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let numChunks = c.memory.len div chunkLen
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for i in 0 ..< numChunks:
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mem.add(%c.memory.bytes.toOpenArray(i * chunkLen, (i + 1) * chunkLen - 1).toHex())
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j["memory"] = mem
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# TODO: log storage
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if TracerFlags.DisableStorage notin tracer.flags:
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let storage = newJArray()
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j["storage"] = storage
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proc traceOpCodeEnded*(t: var TransactionTracer, c: BaseComputation) =
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let j = t.trace["structLogs"].elems[^1]
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j["gasCost"] = %(t.gasRemaining - c.gasMeter.gasRemaining)
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proc traceOpCodeEnded*(tracer: var TransactionTracer, c: BaseComputation) =
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let j = tracer.trace["structLogs"].elems[^1]
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j["gasCost"] = %(tracer.gasRemaining - c.gasMeter.gasRemaining)
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@ -9,20 +9,7 @@ import
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macros, strformat, tables,
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eth_common, eth_trie/db,
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./constants, ./errors, ./transaction, ./db/[db_chain, state_db],
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./utils/header
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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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# receipts*:
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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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AccessLogs* = ref object
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reads*: Table[string, string]
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writes*: Table[string, string]
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./utils/header, json, vm_types, vm/transaction_tracer
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proc newAccessLogs*: AccessLogs =
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AccessLogs(reads: initTable[string, string](), writes: initTable[string, string]())
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@ -37,13 +24,15 @@ proc `$`*(vmState: BaseVMState): string =
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else:
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result = &"VMState {vmState.name}:\n header: {vmState.blockHeader}\n chaindb: {vmState.chaindb}"
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proc newBaseVMState*(header: BlockHeader, chainDB: BaseChainDB): BaseVMState =
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proc newBaseVMState*(header: BlockHeader, chainDB: BaseChainDB, tracerFlags: set[TracerFlags] = {}): BaseVMState =
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new result
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result.prevHeaders = @[]
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result.name = "BaseVM"
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result.accessLogs = newAccessLogs()
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result.blockHeader = header
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result.chaindb = chainDB
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result.tracer.initTracer(tracerFlags)
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result.tracingEnabled = TracerFlags.EnableTracing in tracerFlags
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method blockhash*(vmState: BaseVMState): Hash256 =
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vmState.blockHeader.hash
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@ -124,3 +113,6 @@ export DbTransaction, commit, rollback, dispose, safeDispose
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proc beginTransaction*(vmState: BaseVMState): DbTransaction =
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vmState.chaindb.db.beginTransaction()
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proc getTracingResult*(vmState: BaseVMState): JsonNode =
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assert(vmState.tracingEnabled)
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vmState.tracer.trace
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@ -33,7 +33,7 @@ proc validateTransaction*(vmState: BaseVMState, transaction: Transaction, sender
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transaction.accountNonce == readOnlyDB.getNonce(sender) and
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readOnlyDB.getBalance(sender) >= gas_cost
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proc setupComputation*(header: BlockHeader, vmState: var BaseVMState, transaction: Transaction, sender: EthAddress) : BaseComputation =
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proc setupComputation*(header: BlockHeader, vmState: BaseVMState, transaction: Transaction, sender: EthAddress) : BaseComputation =
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let message = newMessage(
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gas = transaction.gasLimit - transaction.payload.intrinsicGas,
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gasPrice = transaction.gasPrice,
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@ -59,7 +59,7 @@ proc execComputation*(computation: var BaseComputation): bool =
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except ValueError:
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result = false
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proc applyCreateTransaction*(db: var AccountStateDB, t: Transaction, head: BlockHeader, vmState: var BaseVMState, sender: EthAddress, useHomestead: bool = false): UInt256 =
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proc applyCreateTransaction*(db: var AccountStateDB, t: Transaction, vmState: BaseVMState, sender: EthAddress, useHomestead: bool = false): UInt256 =
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doAssert t.isContractCreation
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# TODO: clean up params
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echo "Contract creation"
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@ -71,7 +71,7 @@ proc applyCreateTransaction*(db: var AccountStateDB, t: Transaction, head: Block
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let msg = newMessage(t.gasLimit - gasUsed, t.gasPrice, t.to, sender, t.value, @[], t.payload,
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options = newMessageOptions(origin = sender,
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createAddress = contractAddress))
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var c = newBaseComputation(vmState, head.blockNumber, msg)
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var c = newBaseComputation(vmState, vmState.blockNumber, msg)
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if execComputation(c):
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db.addBalance(contractAddress, t.value)
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@ -111,7 +111,7 @@ proc applyCreateTransaction*(db: var AccountStateDB, t: Transaction, head: Block
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echo "isError: ", c.isError
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return t.gasLimit.u256 * t.gasPrice.u256
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method executeTransaction(vmState: var BaseVMState, transaction: Transaction): (BaseComputation, BlockHeader) {.base.}=
|
||||
method executeTransaction(vmState: BaseVMState, transaction: Transaction): (BaseComputation, BlockHeader) {.base.}=
|
||||
# Execute the transaction in the vm
|
||||
# TODO: introduced here: https://github.com/ethereum/py-evm/commit/21c57f2d56ab91bb62723c3f9ebe291d0b132dde
|
||||
# Refactored/Removed here: https://github.com/ethereum/py-evm/commit/cc991bf
|
||||
|
|
@ -119,7 +119,7 @@ method executeTransaction(vmState: var BaseVMState, transaction: Transaction): (
|
|||
raise newException(ValueError, "Must be implemented by subclasses")
|
||||
|
||||
|
||||
method addTransaction*(vmState: var BaseVMState, transaction: Transaction, computation: BaseComputation, b: Block): (Block, Table[string, string]) =
|
||||
method addTransaction*(vmState: BaseVMState, transaction: Transaction, computation: BaseComputation, b: Block): (Block, Table[string, string]) =
|
||||
# Add a transaction to the given block and
|
||||
# return `trieData` to store the transaction data in chaindb in VM layer
|
||||
# Update the bloomFilter, transaction trie and receipt trie roots, bloom_filter,
|
||||
|
|
@ -149,7 +149,7 @@ method addTransaction*(vmState: var BaseVMState, transaction: Transaction, compu
|
|||
result = (b, initTable[string, string]())
|
||||
|
||||
method applyTransaction*(
|
||||
vmState: var BaseVMState,
|
||||
vmState: BaseVMState,
|
||||
transaction: Transaction,
|
||||
b: Block,
|
||||
isStateless: bool): (BaseComputation, Block, Table[string, string]) =
|
||||
|
|
|
|||
|
|
@ -6,14 +6,38 @@
|
|||
# at your option. This file may not be copied, modified, or distributed except according to those terms.
|
||||
|
||||
import
|
||||
tables, json,
|
||||
eth_common,
|
||||
./constants, ./vm_state,
|
||||
tables, eth_common,
|
||||
./constants, json,
|
||||
./vm/[memory, stack, code_stream],
|
||||
./vm/interpreter/[gas_costs, opcode_values] # TODO - will be hidden at a lower layer
|
||||
|
||||
./vm/interpreter/[gas_costs, opcode_values], # TODO - will be hidden at a lower layer
|
||||
./db/db_chain
|
||||
|
||||
type
|
||||
BaseVMState* = ref object of RootObj
|
||||
prevHeaders* : seq[BlockHeader]
|
||||
# receipts*:
|
||||
chaindb* : BaseChainDB
|
||||
accessLogs* : AccessLogs
|
||||
blockHeader* : BlockHeader
|
||||
name* : string
|
||||
tracingEnabled*: bool
|
||||
tracer* : TransactionTracer
|
||||
|
||||
AccessLogs* = ref object
|
||||
reads*: Table[string, string]
|
||||
writes*: Table[string, string]
|
||||
|
||||
TracerFlags* {.pure.} = enum
|
||||
EnableTracing
|
||||
DisableStorage
|
||||
DisableMemory
|
||||
DisableStack
|
||||
|
||||
TransactionTracer* = object
|
||||
trace*: JsonNode
|
||||
gasRemaining*: GasInt
|
||||
flags*: set[TracerFlags]
|
||||
|
||||
OpcodeExecutor* = proc(computation: var BaseComputation)
|
||||
|
||||
BaseComputation* = ref object of RootObj
|
||||
|
|
@ -34,8 +58,6 @@ type
|
|||
opcodes*: Table[Op, proc(computation: var BaseComputation){.nimcall.}]
|
||||
gasCosts*: GasCosts # TODO - will be hidden at a lower layer
|
||||
opCodeExec*: OpcodeExecutor
|
||||
tracingEnabled*: bool
|
||||
tracer*: TransactionTracer
|
||||
|
||||
Error* = ref object
|
||||
info*: string
|
||||
|
|
@ -106,8 +128,3 @@ type
|
|||
createAddress*: EthAddress
|
||||
codeAddress*: EthAddress
|
||||
flags*: MsgFlags
|
||||
|
||||
TransactionTracer* = object
|
||||
trace*: JsonNode
|
||||
gasRemaining*: GasInt
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue