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chain_config.go
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chain_config.go
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package support
import (
"math/big"
"strings"
"github.com/artela-network/artela/x/evm/types"
sdkmath "cosmossdk.io/math"
errorsmod "cosmossdk.io/errors"
cosmos "github.com/cosmos/cosmos-sdk/types"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/params"
)
// EthereumConfig returns an Ethereum ChainConfig for EVM states transitions.
// All the negative or nil values are converted to nil
func (cc ChainConfig) EthereumConfig(chainID *big.Int) *params.ChainConfig {
return ¶ms.ChainConfig{
ChainID: chainID,
HomesteadBlock: getBlockValue(cc.HomesteadBlock),
DAOForkBlock: getBlockValue(cc.DAOForkBlock),
DAOForkSupport: cc.DAOForkSupport,
EIP150Block: getBlockValue(cc.EIP150Block),
// EIP150Hash: common.HexToHash(cc.EIP150Hash),
EIP155Block: getBlockValue(cc.EIP155Block),
EIP158Block: getBlockValue(cc.EIP158Block),
ByzantiumBlock: getBlockValue(cc.ByzantiumBlock),
ConstantinopleBlock: getBlockValue(cc.ConstantinopleBlock),
PetersburgBlock: getBlockValue(cc.PetersburgBlock),
IstanbulBlock: getBlockValue(cc.IstanbulBlock),
MuirGlacierBlock: getBlockValue(cc.MuirGlacierBlock),
BerlinBlock: getBlockValue(cc.BerlinBlock),
LondonBlock: getBlockValue(cc.LondonBlock),
ArrowGlacierBlock: getBlockValue(cc.ArrowGlacierBlock),
GrayGlacierBlock: getBlockValue(cc.GrayGlacierBlock),
MergeNetsplitBlock: getBlockValue(cc.MergeNetsplitBlock),
// ShanghaiBlock: getBlockValue(cc.ShanghaiBlock),
// CancunBlock: getBlockValue(cc.CancunBlock),
TerminalTotalDifficulty: nil,
Ethash: nil,
Clique: nil,
}
}
// DefaultChainConfig returns default evm parameters.
func DefaultChainConfig() ChainConfig {
homesteadBlock := cosmos.ZeroInt()
daoForkBlock := cosmos.ZeroInt()
eip150Block := cosmos.ZeroInt()
eip155Block := cosmos.ZeroInt()
eip158Block := cosmos.ZeroInt()
byzantiumBlock := cosmos.ZeroInt()
constantinopleBlock := cosmos.ZeroInt()
petersburgBlock := cosmos.ZeroInt()
istanbulBlock := cosmos.ZeroInt()
muirGlacierBlock := cosmos.ZeroInt()
berlinBlock := cosmos.ZeroInt()
londonBlock := cosmos.ZeroInt()
arrowGlacierBlock := cosmos.ZeroInt()
grayGlacierBlock := cosmos.ZeroInt()
mergeNetsplitBlock := cosmos.ZeroInt()
shanghaiBlock := cosmos.ZeroInt()
cancunBlock := cosmos.ZeroInt()
return ChainConfig{
HomesteadBlock: &homesteadBlock,
DAOForkBlock: &daoForkBlock,
DAOForkSupport: true,
EIP150Block: &eip150Block,
EIP150Hash: common.Hash{}.String(),
EIP155Block: &eip155Block,
EIP158Block: &eip158Block,
ByzantiumBlock: &byzantiumBlock,
ConstantinopleBlock: &constantinopleBlock,
PetersburgBlock: &petersburgBlock,
IstanbulBlock: &istanbulBlock,
MuirGlacierBlock: &muirGlacierBlock,
BerlinBlock: &berlinBlock,
LondonBlock: &londonBlock,
ArrowGlacierBlock: &arrowGlacierBlock,
GrayGlacierBlock: &grayGlacierBlock,
MergeNetsplitBlock: &mergeNetsplitBlock,
ShanghaiBlock: &shanghaiBlock,
CancunBlock: &cancunBlock,
}
}
// Validate performs a basic validation of the ChainConfig params. The function will return an error
// if any of the block values is uninitialized (i.e nil) or if the EIP150Hash is an invalid hash.
func (cc ChainConfig) Validate() error {
if err := validateBlock(cc.HomesteadBlock); err != nil {
return errorsmod.Wrap(err, "homesteadBlock")
}
if err := validateBlock(cc.DAOForkBlock); err != nil {
return errorsmod.Wrap(err, "daoForkBlock")
}
if err := validateBlock(cc.EIP150Block); err != nil {
return errorsmod.Wrap(err, "eip150Block")
}
if err := validateHash(cc.EIP150Hash); err != nil {
return err
}
if err := validateBlock(cc.EIP155Block); err != nil {
return errorsmod.Wrap(err, "eip155Block")
}
if err := validateBlock(cc.EIP158Block); err != nil {
return errorsmod.Wrap(err, "eip158Block")
}
if err := validateBlock(cc.ByzantiumBlock); err != nil {
return errorsmod.Wrap(err, "byzantiumBlock")
}
if err := validateBlock(cc.ConstantinopleBlock); err != nil {
return errorsmod.Wrap(err, "constantinopleBlock")
}
if err := validateBlock(cc.PetersburgBlock); err != nil {
return errorsmod.Wrap(err, "petersburgBlock")
}
if err := validateBlock(cc.IstanbulBlock); err != nil {
return errorsmod.Wrap(err, "istanbulBlock")
}
if err := validateBlock(cc.MuirGlacierBlock); err != nil {
return errorsmod.Wrap(err, "muirGlacierBlock")
}
if err := validateBlock(cc.BerlinBlock); err != nil {
return errorsmod.Wrap(err, "berlinBlock")
}
if err := validateBlock(cc.LondonBlock); err != nil {
return errorsmod.Wrap(err, "londonBlock")
}
if err := validateBlock(cc.ArrowGlacierBlock); err != nil {
return errorsmod.Wrap(err, "arrowGlacierBlock")
}
if err := validateBlock(cc.GrayGlacierBlock); err != nil {
return errorsmod.Wrap(err, "GrayGlacierBlock")
}
if err := validateBlock(cc.MergeNetsplitBlock); err != nil {
return errorsmod.Wrap(err, "MergeNetsplitBlock")
}
if err := validateBlock(cc.ShanghaiBlock); err != nil {
return errorsmod.Wrap(err, "ShanghaiBlock")
}
if err := validateBlock(cc.CancunBlock); err != nil {
return errorsmod.Wrap(err, "CancunBlock")
}
// NOTE: chain ID is not needed to check config order
if err := cc.EthereumConfig(nil).CheckConfigForkOrder(); err != nil {
return errorsmod.Wrap(err, "invalid config fork order")
}
return nil
}
func getBlockValue(block *sdkmath.Int) *big.Int {
if block == nil || block.IsNegative() {
return nil
}
return block.BigInt()
}
func validateHash(hex string) error {
if hex != "" && strings.TrimSpace(hex) == "" {
return errorsmod.Wrap(types.ErrInvalidChainConfig, "hash cannot be blank")
}
return nil
}
func validateBlock(block *sdkmath.Int) error {
// nil value means that the fork has not yet been applied
if block == nil {
return nil
}
if block.IsNegative() {
return errorsmod.Wrapf(
types.ErrInvalidChainConfig, "block value cannot be negative: %s", block,
)
}
return nil
}