nimbus-eth1/nimbus/evm/interpreter/op_handlers/oph_blockdata.nim

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# Nimbus
# Copyright (c) 2018-2023 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.
## EVM Opcode Handlers: Block Data
## ===============================
##
import
eth/common,
../../computation,
../../stack,
../../async/operations,
../utils/utils_numeric,
../op_codes,
./oph_defs
{.push raises: [CatchableError].} # basically the annotation type of a `Vm2OpFn`
when not defined(evmc_enabled):
import ../../state
# ------------------------------------------------------------------------------
# Private, op handlers implementation
# ------------------------------------------------------------------------------
const
blockhashOp: Vm2OpFn = proc (k: var Vm2Ctx) =
## 0x40, Get the hash of one of the 256 most recent complete blocks.
let cpt = k.cpt
let (blockNumber) = cpt.stack.popInt(1)
cpt.asyncChainTo(ifNecessaryGetBlockHeaderByNumber(cpt.vmState, blockNumber)):
cpt.stack.push:
cpt.getBlockHash(blockNumber)
coinBaseOp: Vm2OpFn = proc (k: var Vm2Ctx) =
## 0x41, Get the block's beneficiary address.
k.cpt.stack.push:
k.cpt.getCoinbase
timestampOp: Vm2OpFn = proc (k: var Vm2Ctx) =
## 0x42, Get the block's timestamp.
k.cpt.stack.push:
k.cpt.getTimestamp
blocknumberOp: Vm2OpFn = proc (k: var Vm2Ctx) =
## 0x43, Get the block's number.
k.cpt.stack.push:
k.cpt.getBlockNumber
difficultyOp: Vm2OpFn = proc (k: var Vm2Ctx) =
## 0x44, Get the block's difficulty
k.cpt.stack.push:
k.cpt.getDifficulty
gasLimitOp: Vm2OpFn = proc (k: var Vm2Ctx) =
## 0x45, Get the block's gas limit
k.cpt.stack.push:
k.cpt.getGasLimit
chainIdOp: Vm2OpFn = proc (k: var Vm2Ctx) =
## 0x46, Get current chains EIP-155 unique identifier.
k.cpt.stack.push:
k.cpt.getChainId
selfBalanceOp: Vm2OpFn = proc (k: var Vm2Ctx) =
## 0x47, Get current contract's balance.
let cpt = k.cpt
cpt.asyncChainTo(ifNecessaryGetAccount(cpt.vmState, cpt.msg.contractAddress)):
cpt.stack.push:
cpt.getBalance(cpt.msg.contractAddress)
baseFeeOp: Vm2OpFn = proc (k: var Vm2Ctx) =
## 0x48, Get the block's base fee.
k.cpt.stack.push:
k.cpt.getBaseFee
blobHashOp: Vm2OpFn = proc (k: var Vm2Ctx) =
## 0x49, Get current transaction's EIP-4844 versioned hash.
let index = k.cpt.stack.popInt().safeInt
let len = k.cpt.getVersionedHashesLen
if index < len:
k.cpt.stack.push:
k.cpt.getVersionedHash(index)
else:
k.cpt.stack.push:
0
blobBaseFeeOp: Vm2OpFn = proc (k: var Vm2Ctx) =
## 0x4a, Get the block's base fee.
k.cpt.stack.push:
k.cpt.getBlobBaseFee
# ------------------------------------------------------------------------------
# Public, op exec table entries
# ------------------------------------------------------------------------------
const
vm2OpExecBlockData*: seq[Vm2OpExec] = @[
(opCode: Blockhash, ## 0x40, Hash of some most recent complete block
forks: Vm2OpAllForks,
name: "blockhash",
info: "Get the hash of one of the 256 most recent complete blocks",
exec: (prep: vm2OpIgnore,
run: blockhashOp,
post: vm2OpIgnore)),
(opCode: Coinbase, ## 0x41, Beneficiary address
forks: Vm2OpAllForks,
name: "coinbase",
info: "Get the block's beneficiary address",
exec: (prep: vm2OpIgnore,
run: coinBaseOp,
post: vm2OpIgnore)),
(opCode: Timestamp, ## 0x42, Block timestamp.
forks: Vm2OpAllForks,
name: "timestamp",
info: "Get the block's timestamp",
exec: (prep: vm2OpIgnore,
run: timestampOp,
post: vm2OpIgnore)),
(opCode: Number, ## 0x43, Block number
forks: Vm2OpAllForks,
name: "blockNumber",
info: "Get the block's number",
exec: (prep: vm2OpIgnore,
run: blocknumberOp,
post: vm2OpIgnore)),
(opCode: Difficulty, ## 0x44, Block difficulty
forks: Vm2OpAllForks,
name: "difficulty",
info: "Get the block's difficulty",
exec: (prep: vm2OpIgnore,
run: difficultyOp,
post: vm2OpIgnore)),
(opCode: GasLimit, ## 0x45, Block gas limit
forks: Vm2OpAllForks,
name: "gasLimit",
info: "Get the block's gas limit",
exec: (prep: vm2OpIgnore,
run: gasLimitOp,
post: vm2OpIgnore)),
(opCode: ChainIdOp, ## 0x46, EIP-155 chain identifier
forks: Vm2OpIstanbulAndLater,
name: "chainId",
info: "Get current chains EIP-155 unique identifier",
exec: (prep: vm2OpIgnore,
run: chainIdOp,
post: vm2OpIgnore)),
(opCode: SelfBalance, ## 0x47, Contract balance.
forks: Vm2OpIstanbulAndLater,
name: "selfBalance",
info: "Get current contract's balance",
exec: (prep: vm2OpIgnore,
run: selfBalanceOp,
post: vm2OpIgnore)),
(opCode: BaseFee, ## 0x48, EIP-1559 Block base fee.
forks: Vm2OpLondonAndLater,
name: "baseFee",
info: "Get current block's EIP-1559 base fee",
exec: (prep: vm2OpIgnore,
run: baseFeeOp,
post: vm2OpIgnore)),
(opCode: BlobHash, ## 0x49, EIP-4844 Transaction versioned hash
forks: Vm2OpCancunAndLater,
name: "blobHash",
info: "Get current transaction's EIP-4844 versioned hash",
exec: (prep: vm2OpIgnore,
run: blobHashOp,
post: vm2OpIgnore)),
(opCode: BlobBaseFee, ## 0x4a, EIP-7516 Returns the current data-blob base-fee
forks: Vm2OpCancunAndLater,
name: "blobBaseFee",
info: "Returns the current data-blob base-fee",
exec: (prep: vm2OpIgnore,
run: blobBaseFeeOp,
post: vm2OpIgnore))]
# ------------------------------------------------------------------------------
# End
# ------------------------------------------------------------------------------