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Refactored variable setup to ensure sensible defaults

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coffeepots 2018-11-23 18:24:42 +00:00
parent a20a18f8e8
commit a279915175
1 changed files with 18 additions and 8 deletions
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26
nimbus/rpc/p2p.nim
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@ -249,7 +249,6 @@ proc setupEthRpc*(node: EthereumNode, chain: BaseChainDB, rpcsrv: RpcServer) =
gasLimit, gasPrice: GasInt): BaseComputation =
let
# Handle optional defaults.
# Note in eth_call (but not eth_estimateGas), the `to` field is required.
message = newMessage(
gas = gasLimit,
gasPrice = gasPrice,
@ -272,19 +271,30 @@ proc setupEthRpc*(node: EthereumNode, chain: BaseChainDB, rpcsrv: RpcServer) =
let header = headerFromTag(chain, quantityTag)
var
vmState = newBaseVMState(header, chain)
gasLimit =
if call.gas.isSome: call.gas.get
else: 0.GasInt
gasPrice =
if call.gasPrice.isSome: call.gasPrice.get
else: 0.GasInt
# Set defaults for gas limit and price if required
if gaslimit == 0.GasInt:
gasLimit = (int64.high div 2).GasInt # Note this is `uint64.high div 2` in Geth
if gasPrice == 0.GasInt:
gasPrice = 1e9.GasInt # Geth's default gas price
var
sender = if call.source.isSome: call.source.get.toAddress else: ZERO_ADDRESS
# destination is a required parameter for call. In geth if it's zero they use the first wallet address,
# Note that destination is a required parameter for call.
# In geth if it's zero they use the first wallet address,
# if no wallets, remains as ZERO_ADDRESS
# TODO: Update to use wallets
# TODO: Wallets
destination = if call.to.isSome: call.to.get.toAddress else: ZERO_ADDRESS
pendingBlock = vmState.chaindb.getCanonicalHead() # TODO: Needs to fetch from a pending block, not head
gasLimit = if call.gas.isSome: call.gas.get else: pendingBlock.gasLimit
gGasPrice = 1.GasInt
gasPrice = if call.gasPrice.isSome: call.gasPrice.get else: gGasPrice
data = if call.data.isSome: call.data.get.string.fromHex else: @[]
value = if call.value.isSome: call.value.get else: 0.u256
comp = setupComputation(vmState, header.blockNumber, value, data, sender, destination, gasLimit, gasPrice)
discard comp.execComputation
result = ("0x" & nimcrypto.toHex(comp.output)).HexDataStr