types

package
v1.0.0 Latest Latest
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 Go to latest Published: Mar 26, 2021 License: Apache-2.0 Imports: 29 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	EventTypeEthermint  = TypeMsgEthermint
	EventTypeEthereumTx = TypeMsgEthereumTx

	AttributeKeyContractAddress = "contract"
	AttributeKeyRecipient       = "recipient"
	AttributeValueCategory      = ModuleName
)

Evm module events

View Source 
const (
	// ModuleName string name of module
	ModuleName = "evm"

	// StoreKey key for ethereum storage data, account code (StateDB) or block
	// related data for Web3.
	// The EVM module should use a prefix store.
	StoreKey = ModuleName

	// RouterKey uses module name for routing
	RouterKey = ModuleName
)
View Source 
const (
	// TypeMsgEthereumTx defines the type string of an Ethereum tranasction
	TypeMsgEthereumTx = "ethereum"
	// TypeMsgEthermint defines the type string of Lsbchain message
	TypeMsgEthermint = "lsbchain"
)

message type and route constants

View Source 
const (
	QueryBalance         = "balance"
	QueryBlockNumber     = "blockNumber"
	QueryStorage         = "storage"
	QueryCode            = "code"
	QueryNonce           = "nonce"
	QueryHashToHeight    = "hashToHeight"
	QueryTransactionLogs = "transactionLogs"
	QueryBloom           = "bloom"
	QueryLogs            = "logs"
	QueryAccount         = "account"
)

Supported endpoints

View Source 
const (
	// DefaultParamspace for params keeper
	DefaultParamspace = ModuleName
)

Variables

View Source 
var (
	// ErrInvalidState returns an error resulting from an invalid Storage State.
	ErrInvalidState = sdkerrors.Register(ModuleName, 2, "invalid storage state")

	// ErrChainConfigNotFound returns an error if the chain config cannot be found on the store.
	ErrChainConfigNotFound = sdkerrors.Register(ModuleName, 3, "chain configuration not found")

	// ErrInvalidChainConfig returns an error resulting from an invalid ChainConfig.
	ErrInvalidChainConfig = sdkerrors.Register(ModuleName, 4, "invalid chain configuration")

	// ErrCreateDisabled returns an error if the EnableCreate parameter is false.
	ErrCreateDisabled = sdkerrors.Register(ModuleName, 5, "EVM Create operation is disabled")

	// ErrCallDisabled returns an error if the EnableCall parameter is false.
	ErrCallDisabled = sdkerrors.Register(ModuleName, 6, "EVM Call operation is disabled")
)
View Source 
var (
	KeyPrefixBlockHash   = []byte{0x01}
	KeyPrefixBloom       = []byte{0x02}
	KeyPrefixLogs        = []byte{0x03}
	KeyPrefixCode        = []byte{0x04}
	KeyPrefixStorage     = []byte{0x05}
	KeyPrefixChainConfig = []byte{0x06}
	KeyPrefixHeightHash  = []byte{0x07}
)

KVStore key prefixes

View Source 
var (
	ParamStoreKeyEVMDenom     = []byte("EVMDenom")
	ParamStoreKeyEnableCreate = []byte("EnableCreate")
	ParamStoreKeyEnableCall   = []byte("EnableCall")
	ParamStoreKeyExtraEIPs    = []byte("EnableExtraEIPs")
)

Parameter keys

View Source 
var ModuleCdc = codec.New()

ModuleCdc defines the evm module's codec

Functions

func AddressStoragePrefix 

func AddressStoragePrefix(address ethcmn.Address) []byte

AddressStoragePrefix returns a prefix to iterate over a given account storage.

func BloomKey 

func BloomKey(height int64) []byte

BloomKey defines the store key for a block Bloom

func CopyCommitStateDB 

func CopyCommitStateDB(from, to *CommitStateDB)

func EncodeResultData 

func EncodeResultData(data ResultData) ([]byte, error)

EncodeResultData takes all of the necessary data from the EVM execution and returns the data as a byte slice encoded with amino

func GenerateEthAddress 

func GenerateEthAddress() ethcmn.Address

GenerateEthAddress generates an Ethereum address.

func GetHashFn 

func GetHashFn(ctx sdk.Context, csdb *CommitStateDB) vm.GetHashFunc

GetHashFn implements vm.GetHashFunc for Ethermint. It handles 3 cases:

  1. The requested height matches the current height (and thus same epoch number)
  2. The requested height is from an previous height from the same chain epoch
  3. The requested height is from a height greater than the latest one

func HeightHashKey 

func HeightHashKey(height uint64) []byte

HeightHashKey returns the key for the given chain epoch and height. The key will be composed in the following order: 

key = prefix + bytes(height)

This ordering facilitates the iteration by height for the EVM GetHashFn queries.

func MarshalLogs 

func MarshalLogs(logs []*ethtypes.Log) ([]byte, error)

MarshalLogs encodes an array of logs using amino

func ParamKeyTable 

func ParamKeyTable() params.KeyTable

ParamKeyTable returns the parameter key table.

func RegisterCodec 

func RegisterCodec(cdc *codec.Codec)

RegisterCodec registers all the necessary types and interfaces for the evm module

func TxDecoder 

func TxDecoder(cdc *codec.Codec) sdk.TxDecoder

TxDecoder returns an sdk.TxDecoder that can decode both auth.StdTx and MsgEthereumTx transactions.

func UnmarshalLogs 

func UnmarshalLogs(in []byte) ([]*ethtypes.Log, error)

UnmarshalLogs decodes an amino-encoded byte array into an array of logs

func ValidateLog 

func ValidateLog(log *ethtypes.Log) error

ValidateLog performs a basic validation of an ethereum Log fields.

func ValidateSigner 

func ValidateSigner(signBytes, sig []byte, signer ethcmn.Address) error

ValidateSigner attempts to validate a signer for a given slice of bytes over which a signature and signer is given. An error is returned if address derived from the signature and bytes signed does not match the given signer.

Types

type AccountKeeper 

type AccountKeeper interface {
	NewAccountWithAddress(ctx sdk.Context, addr sdk.AccAddress) authexported.Account
	GetAllAccounts(ctx sdk.Context) (accounts []authexported.Account)
	IterateAccounts(ctx sdk.Context, cb func(account authexported.Account) bool)
	GetAccount(ctx sdk.Context, addr sdk.AccAddress) authexported.Account
	SetAccount(ctx sdk.Context, account authexported.Account)
	RemoveAccount(ctx sdk.Context, account authexported.Account)
}

AccountKeeper defines the expected account keeper interface

type ChainConfig 

type ChainConfig struct {
	HomesteadBlock sdk.Int `json:"homestead_block" yaml:"homestead_block"` // Homestead switch block (< 0 no fork, 0 = already homestead)

	DAOForkBlock   sdk.Int `json:"dao_fork_block" yaml:"dao_fork_block"`     // TheDAO hard-fork switch block (< 0 no fork)
	DAOForkSupport bool    `json:"dao_fork_support" yaml:"dao_fork_support"` // Whether the nodes supports or opposes the DAO hard-fork

	// EIP150 implements the Gas price changes (https://github.com/ethereum/EIPs/issues/150)
	EIP150Block sdk.Int `json:"eip150_block" yaml:"eip150_block"` // EIP150 HF block (< 0 no fork)
	EIP150Hash  string  `json:"eip150_hash" yaml:"eip150_hash"`   // EIP150 HF hash (needed for header only clients as only gas pricing changed)

	EIP155Block sdk.Int `json:"eip155_block" yaml:"eip155_block"` // EIP155 HF block
	EIP158Block sdk.Int `json:"eip158_block" yaml:"eip158_block"` // EIP158 HF block

	ByzantiumBlock      sdk.Int `json:"byzantium_block" yaml:"byzantium_block"`           // Byzantium switch block (< 0 no fork, 0 = already on byzantium)
	ConstantinopleBlock sdk.Int `json:"constantinople_block" yaml:"constantinople_block"` // Constantinople switch block (< 0 no fork, 0 = already activated)
	PetersburgBlock     sdk.Int `json:"petersburg_block" yaml:"petersburg_block"`         // Petersburg switch block (< 0 same as Constantinople)
	IstanbulBlock       sdk.Int `json:"istanbul_block" yaml:"istanbul_block"`             // Istanbul switch block (< 0 no fork, 0 = already on istanbul)
	MuirGlacierBlock    sdk.Int `json:"muir_glacier_block" yaml:"muir_glacier_block"`     // Eip-2384 (bomb delay) switch block (< 0 no fork, 0 = already activated)

	YoloV2Block sdk.Int `json:"yoloV2_block" yaml:"yoloV2_block"` // YOLO v1: https://github.com/ethereum/EIPs/pull/2657 (Ephemeral testnet)
	EWASMBlock  sdk.Int `json:"ewasm_block" yaml:"ewasm_block"`   // EWASM switch block (< 0 no fork, 0 = already activated)
}

ChainConfig defines the Ethereum ChainConfig parameters using sdk.Int values instead of big.Int.

NOTE 1: Since empty/uninitialized Ints (i.e with a nil big.Int value) are parsed to zero, we need to manually specify that negative Int values will be considered as nil. See getBlockValue for reference.

NOTE 2: This type is not a configurable Param since the SDK does not allow for validation against a previous stored parameter values or the current block height (retrieved from context). If you want to update the config values, use an software upgrade procedure.

func DefaultChainConfig 

func DefaultChainConfig() ChainConfig

DefaultChainConfig returns default evm parameters. Th

func (ChainConfig) EthereumConfig 

func (cc ChainConfig) EthereumConfig(chainID *big.Int) *params.ChainConfig

EthereumConfig returns an Ethereum ChainConfig for EVM state transitions. All the negative or nil values are converted to nil

func (ChainConfig) IsHomestead 

func (cc ChainConfig) IsHomestead() bool

IsHomestead returns whether the Homestead version is enabled.

func (ChainConfig) IsIstanbul 

func (cc ChainConfig) IsIstanbul() bool

IsIstanbul returns whether the Istanbul version is enabled.

func (ChainConfig) String 

func (cc ChainConfig) String() string

String implements the fmt.Stringer interface

func (ChainConfig) Validate 

func (cc ChainConfig) Validate() error

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.

type CommitStateDB 

type CommitStateDB struct {
	// contains filtered or unexported fields
}

CommitStateDB implements the Geth state.StateDB interface. Instead of using a trie and database for querying and persistence, the Keeper uses KVStores and an AccountKeeper to facilitate state transitions.

TODO: This implementation is subject to change in regards to its statefull manner. In otherwords, how this relates to the keeper in this module.

func NewCommitStateDB 

func NewCommitStateDB(
	ctx sdk.Context, storeKey sdk.StoreKey, paramSpace params.Subspace, ak AccountKeeper,
) *CommitStateDB

NewCommitStateDB returns a reference to a newly initialized CommitStateDB which implements Geth's state.StateDB interface.

CONTRACT: Stores used for state must be cache-wrapped as the ordering of the key/value space matters in determining the merkle root.

func (*CommitStateDB) AddAddressToAccessList 

func (csdb *CommitStateDB) AddAddressToAccessList(addr ethcmn.Address)

AddAddressToAccessList adds the given address to the access list

func (*CommitStateDB) AddBalance 

func (csdb *CommitStateDB) AddBalance(addr ethcmn.Address, amount *big.Int)

AddBalance adds amount to the account associated with addr.

func (*CommitStateDB) AddLog 

func (csdb *CommitStateDB) AddLog(log *ethtypes.Log)

AddLog adds a new log to the state and sets the log metadata from the state.

func (*CommitStateDB) AddPreimage 

func (csdb *CommitStateDB) AddPreimage(hash ethcmn.Hash, preimage []byte)

AddPreimage records a SHA3 preimage seen by the VM.

func (*CommitStateDB) AddRefund 

func (csdb *CommitStateDB) AddRefund(gas uint64)

AddRefund adds gas to the refund counter.

func (*CommitStateDB) AddSlotToAccessList 

func (csdb *CommitStateDB) AddSlotToAccessList(addr ethcmn.Address, slot ethcmn.Hash)

AddSlotToAccessList adds the given (address, slot)-tuple to the access list

func (*CommitStateDB) AddressInAccessList 

func (csdb *CommitStateDB) AddressInAccessList(addr ethcmn.Address) bool

AddressInAccessList returns true if the given address is in the access list.

func (*CommitStateDB) AllLogs 

func (csdb *CommitStateDB) AllLogs() []*ethtypes.Log

AllLogs returns all the current logs in the state.

func (*CommitStateDB) BlockHash 

func (csdb *CommitStateDB) BlockHash() ethcmn.Hash

BlockHash returns the current block hash set by Prepare.

func (*CommitStateDB) ClearStateObjects 

func (csdb *CommitStateDB) ClearStateObjects()

ClearStateObjects clears cache of state objects to handle account changes outside of the EVM

func (*CommitStateDB) Commit 

func (csdb *CommitStateDB) Commit(deleteEmptyObjects bool) (ethcmn.Hash, error)

Commit writes the state to the appropriate KVStores. For each state object in the cache, it will either be removed, or have it's code set and/or it's state (storage) updated. In addition, the state object (account) itself will be written. Finally, the root hash (version) will be returned.

func (*CommitStateDB) Copy 

func (csdb *CommitStateDB) Copy() *CommitStateDB

Copy creates a deep, independent copy of the state.

NOTE: Snapshots of the copied state cannot be applied to the copy.

func (*CommitStateDB) CreateAccount 

func (csdb *CommitStateDB) CreateAccount(addr ethcmn.Address)

CreateAccount explicitly creates a state object. If a state object with the address already exists the balance is carried over to the new account.

CreateAccount is called during the EVM CREATE operation. The situation might arise that a contract does the following:

  1. sends funds to sha(account ++ (nonce + 1))
  2. tx_create(sha(account ++ nonce)) (note that this gets the address of 1)

Carrying over the balance ensures that Ether doesn't disappear.

func (*CommitStateDB) Database 

func (csdb *CommitStateDB) Database() ethstate.Database

Database retrieves the low level database supporting the lower level trie ops. It is not used in Ethermint, so it returns nil.

func (*CommitStateDB) DeleteLogs 

func (csdb *CommitStateDB) DeleteLogs(hash ethcmn.Hash)

DeleteLogs removes the logs from the KVStore. It is used during journal.Revert.

func (*CommitStateDB) Empty 

func (csdb *CommitStateDB) Empty(addr ethcmn.Address) bool

Empty returns whether the state object is either non-existent or empty according to the EIP161 specification (balance = nonce = code = 0).

func (*CommitStateDB) Error 

func (csdb *CommitStateDB) Error() error

Error returns the first non-nil error the StateDB encountered.

func (*CommitStateDB) Exist 

func (csdb *CommitStateDB) Exist(addr ethcmn.Address) bool

Exist reports whether the given account address exists in the state. Notably, this also returns true for suicided accounts.

func (*CommitStateDB) Finalise 

func (csdb *CommitStateDB) Finalise(deleteEmptyObjects bool) error

Finalise finalizes the state objects (accounts) state by setting their state, removing the csdb destructed objects and clearing the journal as well as the refunds.

func (*CommitStateDB) ForEachStorage 

func (csdb *CommitStateDB) ForEachStorage(addr ethcmn.Address, cb func(key, value ethcmn.Hash) (stop bool)) error

ForEachStorage iterates over each storage items, all invoke the provided callback on each key, value pair.

func (*CommitStateDB) GetBalance 

func (csdb *CommitStateDB) GetBalance(addr ethcmn.Address) *big.Int

GetBalance retrieves the balance from the given address or 0 if object not found.

func (*CommitStateDB) GetCode 

func (csdb *CommitStateDB) GetCode(addr ethcmn.Address) []byte

GetCode returns the code for a given account.

func (*CommitStateDB) GetCodeHash 

func (csdb *CommitStateDB) GetCodeHash(addr ethcmn.Address) ethcmn.Hash

GetCodeHash returns the code hash for a given account.

func (*CommitStateDB) GetCodeSize 

func (csdb *CommitStateDB) GetCodeSize(addr ethcmn.Address) int

GetCodeSize returns the code size for a given account.

func (*CommitStateDB) GetCommittedState 

func (csdb *CommitStateDB) GetCommittedState(addr ethcmn.Address, hash ethcmn.Hash) ethcmn.Hash

GetCommittedState retrieves a value from the given account's committed storage.

func (*CommitStateDB) GetHeightHash 

func (csdb *CommitStateDB) GetHeightHash(height uint64) ethcmn.Hash

GetHeightHash returns the block header hash associated with a given block height and chain epoch number.

func (*CommitStateDB) GetLogs 

func (csdb *CommitStateDB) GetLogs(hash ethcmn.Hash) ([]*ethtypes.Log, error)

GetLogs returns the current logs for a given transaction hash from the KVStore.

func (*CommitStateDB) GetNonce 

func (csdb *CommitStateDB) GetNonce(addr ethcmn.Address) uint64

GetNonce returns the nonce (sequence number) for a given account.

func (*CommitStateDB) GetOrNewStateObject 

func (csdb *CommitStateDB) GetOrNewStateObject(addr ethcmn.Address) StateObject

GetOrNewStateObject retrieves a state object or create a new state object if nil.

func (*CommitStateDB) GetParams 

func (csdb *CommitStateDB) GetParams() (params Params)

GetParams returns the total set of evm parameters.

func (*CommitStateDB) GetRefund 

func (csdb *CommitStateDB) GetRefund() uint64

GetRefund returns the current value of the refund counter.

func (*CommitStateDB) GetState 

func (csdb *CommitStateDB) GetState(addr ethcmn.Address, hash ethcmn.Hash) ethcmn.Hash

GetState retrieves a value from the given account's storage store.

func (*CommitStateDB) HasSuicided 

func (csdb *CommitStateDB) HasSuicided(addr ethcmn.Address) bool

HasSuicided returns if the given account for the specified address has been killed.

func (*CommitStateDB) IntermediateRoot 

func (csdb *CommitStateDB) IntermediateRoot(deleteEmptyObjects bool) (ethcmn.Hash, error)

IntermediateRoot returns the current root hash of the state. It is called in between transactions to get the root hash that goes into transaction receipts.

NOTE: The SDK has not concept or method of getting any intermediate merkle root as commitment of the merkle-ized tree doesn't happen until the BaseApps' EndBlocker.

func (*CommitStateDB) Preimages 

func (csdb *CommitStateDB) Preimages() map[ethcmn.Hash][]byte

Preimages returns a list of SHA3 preimages that have been submitted.

func (*CommitStateDB) Prepare 

func (csdb *CommitStateDB) Prepare(thash ethcmn.Hash, txi int)

Prepare sets the current transaction hash and index and block hash which is used when the EVM emits new state logs.

func (*CommitStateDB) RawDump 

func (csdb *CommitStateDB) RawDump() ethstate.Dump

RawDump returns a raw state dump.

TODO: Implement if we need it, especially for the RPC API.

func (*CommitStateDB) Reset 

func (csdb *CommitStateDB) Reset(_ ethcmn.Hash) error

Reset clears out all ephemeral state objects from the state db, but keeps the underlying account mapper and store keys to avoid reloading data for the next operations.

func (*CommitStateDB) RevertToSnapshot 

func (csdb *CommitStateDB) RevertToSnapshot(revID int)

RevertToSnapshot reverts all state changes made since the given revision.

func (*CommitStateDB) SetBalance 

func (csdb *CommitStateDB) SetBalance(addr ethcmn.Address, amount *big.Int)

SetBalance sets the balance of an account.

func (*CommitStateDB) SetBlockHash 

func (csdb *CommitStateDB) SetBlockHash(hash ethcmn.Hash)

func (*CommitStateDB) SetCode 

func (csdb *CommitStateDB) SetCode(addr ethcmn.Address, code []byte)

SetCode sets the code for a given account.

func (*CommitStateDB) SetHeightHash 

func (csdb *CommitStateDB) SetHeightHash(height uint64, hash ethcmn.Hash)

SetHeightHash sets the block header hash associated with a given height.

func (*CommitStateDB) SetLogs 

func (csdb *CommitStateDB) SetLogs(hash ethcmn.Hash, logs []*ethtypes.Log) error

SetLogs sets the logs for a transaction in the KVStore.

func (*CommitStateDB) SetNonce 

func (csdb *CommitStateDB) SetNonce(addr ethcmn.Address, nonce uint64)

SetNonce sets the nonce (sequence number) of an account.

func (*CommitStateDB) SetParams 

func (csdb *CommitStateDB) SetParams(params Params)

SetParams sets the evm parameters to the param space.

func (*CommitStateDB) SetState 

func (csdb *CommitStateDB) SetState(addr ethcmn.Address, key, value ethcmn.Hash)

SetState sets the storage state with a key, value pair for an account.

func (*CommitStateDB) SlotInAccessList 

func (csdb *CommitStateDB) SlotInAccessList(addr ethcmn.Address, slot ethcmn.Hash) (bool, bool)

SlotInAccessList returns true if the given (address, slot)-tuple is in the access list.

func (*CommitStateDB) Snapshot 

func (csdb *CommitStateDB) Snapshot() int

Snapshot returns an identifier for the current revision of the state.

func (*CommitStateDB) StorageTrie 

func (csdb *CommitStateDB) StorageTrie(addr ethcmn.Address) ethstate.Trie

StorageTrie returns nil as the state in Ethermint does not use a direct storage trie.

func (*CommitStateDB) SubBalance 

func (csdb *CommitStateDB) SubBalance(addr ethcmn.Address, amount *big.Int)

SubBalance subtracts amount from the account associated with addr.

func (*CommitStateDB) SubRefund 

func (csdb *CommitStateDB) SubRefund(gas uint64)

SubRefund removes gas from the refund counter. It will panic if the refund counter goes below zero.

func (*CommitStateDB) Suicide 

func (csdb *CommitStateDB) Suicide(addr ethcmn.Address) bool

Suicide marks the given account as suicided and clears the account balance.

The account's state object is still available until the state is committed, getStateObject will return a non-nil account after Suicide.

func (*CommitStateDB) TxIndex 

func (csdb *CommitStateDB) TxIndex() int

TxIndex returns the current transaction index set by Prepare.

func (*CommitStateDB) UpdateAccounts 

func (csdb *CommitStateDB) UpdateAccounts()

UpdateAccounts updates the nonce and coin balances of accounts

func (*CommitStateDB) WithContext 

func (csdb *CommitStateDB) WithContext(ctx sdk.Context) *CommitStateDB

WithContext returns a Database with an updated SDK context

type ExecutionResult 

type ExecutionResult struct {
	Logs    []*ethtypes.Log
	Bloom   *big.Int
	Result  *sdk.Result
	GasInfo GasInfo
}

ExecutionResult represents what's returned from a transition

type GasInfo 

type GasInfo struct {
	GasLimit    uint64
	GasConsumed uint64
	GasRefunded uint64
}

GasInfo returns the gas limit, gas consumed and gas refunded from the EVM transition execution

type GenesisAccount 

type GenesisAccount struct {
	Address string  `json:"address"`
	Code    string  `json:"code,omitempty"`
	Storage Storage `json:"storage,omitempty"`
}

GenesisAccount defines an account to be initialized in the genesis state. Its main difference between with Geth's GenesisAccount is that it uses a custom storage type and that it doesn't contain the private key field. NOTE: balance is omitted as it is imported from the auth account balance.

func (GenesisAccount) Validate 

func (ga GenesisAccount) Validate() error

Validate performs a basic validation of a GenesisAccount fields.

type GenesisState 

type GenesisState struct {
	Accounts    []GenesisAccount  `json:"accounts"`
	TxsLogs     []TransactionLogs `json:"txs_logs"`
	ChainConfig ChainConfig       `json:"chain_config"`
	Params      Params            `json:"params"`
}

GenesisState defines the evm module genesis state

func DefaultGenesisState 

func DefaultGenesisState() GenesisState

DefaultGenesisState sets default evm genesis state with empty accounts and default params and chain config values.

func (GenesisState) Validate 

func (gs GenesisState) Validate() error

Validate performs basic genesis state validation returning an error upon any failure.

type MsgEthereumTx 

type MsgEthereumTx struct {
	Data TxData
	// contains filtered or unexported fields
}

MsgEthereumTx encapsulates an Ethereum transaction as an SDK message.

func NewMsgEthereumTx 

func NewMsgEthereumTx(
	nonce uint64, to *ethcmn.Address, amount *big.Int,
	gasLimit uint64, gasPrice *big.Int, payload []byte,
) MsgEthereumTx

NewMsgEthereumTx returns a reference to a new Ethereum transaction message.

func NewMsgEthereumTxContract 

func NewMsgEthereumTxContract(
	nonce uint64, amount *big.Int, gasLimit uint64, gasPrice *big.Int, payload []byte,
) MsgEthereumTx

NewMsgEthereumTxContract returns a reference to a new Ethereum transaction message designated for contract creation.

func (*MsgEthereumTx) ChainID 

func (msg *MsgEthereumTx) ChainID() *big.Int

ChainID returns which chain id this transaction was signed for (if at all)

func (MsgEthereumTx) Cost 

func (msg MsgEthereumTx) Cost() *big.Int

Cost returns amount + gasprice * gaslimit.

func (*MsgEthereumTx) DecodeRLP 

func (msg *MsgEthereumTx) DecodeRLP(s *rlp.Stream) error

DecodeRLP implements the rlp.Decoder interface.

func (*MsgEthereumTx) EncodeRLP 

func (msg *MsgEthereumTx) EncodeRLP(w io.Writer) error

EncodeRLP implements the rlp.Encoder interface.

func (MsgEthereumTx) Fee 

func (msg MsgEthereumTx) Fee() *big.Int

Fee returns gasprice * gaslimit.

func (*MsgEthereumTx) From 

func (msg *MsgEthereumTx) From() sdk.AccAddress

From loads the ethereum sender address from the sigcache and returns an sdk.AccAddress from its bytes

func (MsgEthereumTx) GetGas 

func (msg MsgEthereumTx) GetGas() uint64

GetGas implements the GasTx interface. It returns the GasLimit of the transaction.

func (MsgEthereumTx) GetMsgs 

func (msg MsgEthereumTx) GetMsgs() []sdk.Msg

GetMsgs returns a single MsgEthereumTx as an sdk.Msg.

func (MsgEthereumTx) GetSignBytes 

func (msg MsgEthereumTx) GetSignBytes() []byte

GetSignBytes returns the Amino bytes of an Ethereum transaction message used for signing.

NOTE: This method cannot be used as a chain ID is needed to create valid bytes to sign over. Use 'RLPSignBytes' instead.

func (MsgEthereumTx) GetSigners 

func (msg MsgEthereumTx) GetSigners() []sdk.AccAddress

GetSigners returns the expected signers for an Ethereum transaction message. For such a message, there should exist only a single 'signer'.

NOTE: This method panics if 'VerifySig' hasn't been called first.

func (MsgEthereumTx) RLPSignBytes 

func (msg MsgEthereumTx) RLPSignBytes(chainID *big.Int) ethcmn.Hash

RLPSignBytes returns the RLP hash of an Ethereum transaction message with a given chainID used for signing.

func (MsgEthereumTx) RawSignatureValues 

func (msg MsgEthereumTx) RawSignatureValues() (v, r, s *big.Int)

RawSignatureValues returns the V, R, S signature values of the transaction. The return values should not be modified by the caller.

func (MsgEthereumTx) Route 

func (msg MsgEthereumTx) Route() string

Route returns the route value of an MsgEthereumTx.

func (*MsgEthereumTx) Sign 

func (msg *MsgEthereumTx) Sign(chainID *big.Int, priv *ecdsa.PrivateKey) error

Sign calculates a secp256k1 ECDSA signature and signs the transaction. It takes a private key and chainID to sign an Ethereum transaction according to EIP155 standard. It mutates the transaction as it populates the V, R, S fields of the Transaction's Signature.

func (MsgEthereumTx) String 

func (msg MsgEthereumTx) String() string

func (MsgEthereumTx) To 

func (msg MsgEthereumTx) To() *ethcmn.Address

To returns the recipient address of the transaction. It returns nil if the transaction is a contract creation.

func (MsgEthereumTx) Type 

func (msg MsgEthereumTx) Type() string

Type returns the type value of an MsgEthereumTx.

func (MsgEthereumTx) ValidateBasic 

func (msg MsgEthereumTx) ValidateBasic() error

ValidateBasic implements the sdk.Msg interface. It performs basic validation checks of a Transaction. If returns an error if validation fails.

func (*MsgEthereumTx) VerifySig 

func (msg *MsgEthereumTx) VerifySig(chainID *big.Int) (ethcmn.Address, error)

VerifySig attempts to verify a Transaction's signature for a given chainID. A derived address is returned upon success or an error if recovery fails.

type MsgEthermint 

type MsgEthermint struct {
	AccountNonce uint64          `json:"nonce"`
	Price        sdk.Int         `json:"gasPrice"`
	GasLimit     uint64          `json:"gas"`
	Recipient    *sdk.AccAddress `json:"to" rlp:"nil"` // nil means contract creation
	Amount       sdk.Int         `json:"value"`
	Payload      []byte          `json:"input"`

	// From address (formerly derived from signature)
	From sdk.AccAddress `json:"from"`
}

MsgEthermint implements a cosmos equivalent structure for Ethereum transactions

func NewMsgEthermint 

func NewMsgEthermint(
	nonce uint64, to *sdk.AccAddress, amount sdk.Int,
	gasLimit uint64, gasPrice sdk.Int, payload []byte, from sdk.AccAddress,
) MsgEthermint

NewMsgEthermint returns a reference to a new Lsbchain transaction

func (MsgEthermint) GetSignBytes 

func (msg MsgEthermint) GetSignBytes() []byte

GetSignBytes encodes the message for signing

func (MsgEthermint) GetSigners 

func (msg MsgEthermint) GetSigners() []sdk.AccAddress

GetSigners defines whose signature is required

func (MsgEthermint) Route 

func (msg MsgEthermint) Route() string

Route should return the name of the module

func (MsgEthermint) String 

func (msg MsgEthermint) String() string

func (MsgEthermint) To 

func (msg MsgEthermint) To() *ethcmn.Address

To returns the recipient address of the transaction. It returns nil if the transaction is a contract creation.

func (MsgEthermint) Type 

func (msg MsgEthermint) Type() string

Type returns the action of the message

func (MsgEthermint) ValidateBasic 

func (msg MsgEthermint) ValidateBasic() error

ValidateBasic runs stateless checks on the message

type Params 

type Params struct {
	// EVMDenom defines the token denomination used for state transitions on the
	// EVM module.
	EvmDenom string `json:"evm_denom" yaml:"evm_denom"`
	// EnableCreate toggles state transitions that use the vm.Create function
	EnableCreate bool `json:"enable_create" yaml:"enable_create"`
	// EnableCall toggles state transitions that use the vm.Call function
	EnableCall bool `json:"enable_call" yaml:"enable_call"`
	// ExtraEIPs defines the additional EIPs for the vm.Config
	ExtraEIPs []int64 `json:"extra_eips" yaml:"extra_eips"`
}

Params defines the EVM module parameters

func DefaultParams 

func DefaultParams() Params

DefaultParams returns default evm parameters

func NewParams 

func NewParams(evmDenom string, enableCreate, enableCall bool, extraEIPs ...int64) Params

NewParams creates a new Params instance

func (*Params) ParamSetPairs 

func (p *Params) ParamSetPairs() params.ParamSetPairs

ParamSetPairs returns the parameter set pairs.

func (Params) String 

func (p Params) String() string

String implements the fmt.Stringer interface

func (Params) Validate 

func (p Params) Validate() error

Validate performs basic validation on evm parameters.

type QueryBloomFilter 

type QueryBloomFilter struct {
	Bloom ethtypes.Bloom `json:"bloom"`
}

QueryBloomFilter is response type for tx logs query

func (QueryBloomFilter) String 

func (q QueryBloomFilter) String() string

type QueryETHLogs 

type QueryETHLogs struct {
	Logs []*ethtypes.Log `json:"logs"`
}

QueryETHLogs is response type for tx logs query

func (QueryETHLogs) String 

func (q QueryETHLogs) String() string

type QueryResAccount 

type QueryResAccount struct {
	Balance  string `json:"balance"`
	CodeHash []byte `json:"codeHash"`
	Nonce    uint64 `json:"nonce"`
}

QueryAccount is response type for querying Ethereum state objects

type QueryResBalance 

type QueryResBalance struct {
	Balance string `json:"balance"`
}

QueryResBalance is response type for balance query

func (QueryResBalance) String 

func (q QueryResBalance) String() string

type QueryResBlockNumber 

type QueryResBlockNumber struct {
	Number int64 `json:"blockNumber"`
}

QueryResBlockNumber is response type for block number query

func (QueryResBlockNumber) String 

func (q QueryResBlockNumber) String() string

type QueryResCode 

type QueryResCode struct {
	Code []byte
}

QueryResCode is response type for code query

func (QueryResCode) String 

func (q QueryResCode) String() string

type QueryResExportAccount 

type QueryResExportAccount = GenesisAccount

type QueryResNonce 

type QueryResNonce struct {
	Nonce uint64 `json:"nonce"`
}

QueryResNonce is response type for Nonce query

func (QueryResNonce) String 

func (q QueryResNonce) String() string

type QueryResStorage 

type QueryResStorage struct {
	Value []byte `json:"value"`
}

QueryResStorage is response type for storage query

func (QueryResStorage) String 

func (q QueryResStorage) String() string

type Recipient 

type Recipient struct {
	Address string
}

Recipient is a wrapper of the

type ResultData 

type ResultData struct {
	ContractAddress ethcmn.Address  `json:"contract_address"`
	Bloom           ethtypes.Bloom  `json:"bloom"`
	Logs            []*ethtypes.Log `json:"logs"`
	Ret             []byte          `json:"ret"`
	TxHash          ethcmn.Hash     `json:"tx_hash"`
}

ResultData represents the data returned in an sdk.Result

func DecodeResultData 

func DecodeResultData(in []byte) (ResultData, error)

DecodeResultData decodes an amino-encoded byte slice into ResultData

func (ResultData) String 

func (rd ResultData) String() string

String implements fmt.Stringer interface.

type State 

type State struct {
	Key   string `json:"key"`
	Value string `json:"value"`
}

State represents a single Storage key value pair item.

func NewState 

func NewState(key, value ethcmn.Hash) State

NewState creates a new State instance

func (State) Validate 

func (s State) Validate() error

Validate performs a basic validation of the State fields.

type StateObject 

type StateObject interface {
	GetCommittedState(db ethstate.Database, key ethcmn.Hash) ethcmn.Hash
	GetState(db ethstate.Database, key ethcmn.Hash) ethcmn.Hash
	SetState(db ethstate.Database, key, value ethcmn.Hash)

	Code(db ethstate.Database) []byte
	SetCode(codeHash ethcmn.Hash, code []byte)
	CodeHash() []byte

	AddBalance(amount *big.Int)
	SubBalance(amount *big.Int)
	SetBalance(amount *big.Int)

	Balance() *big.Int
	ReturnGas(gas *big.Int)
	Address() ethcmn.Address

	SetNonce(nonce uint64)
	Nonce() uint64
}

StateObject interface for interacting with state object

type StateTransition 

type StateTransition struct {
	// TxData fields
	AccountNonce uint64
	Price        *big.Int
	GasLimit     uint64
	Recipient    *common.Address
	Amount       *big.Int
	Payload      []byte

	ChainID  *big.Int
	Csdb     *CommitStateDB
	TxHash   *common.Hash
	Sender   common.Address
	Simulate bool // i.e CheckTx execution
}

StateTransition defines data to transitionDB in evm

func (StateTransition) TransitionDb 

func (st StateTransition) TransitionDb(ctx sdk.Context, config ChainConfig) (*ExecutionResult, error)

TransitionDb will transition the state by applying the current transaction and returning the evm execution result. NOTE: State transition checks are run during AnteHandler execution.

type Storage 

type Storage []State

Storage represents the account Storage map as a slice of single key value State pairs. This is to prevent non determinism at genesis initialization or export.

func (Storage) Copy 

func (s Storage) Copy() Storage

Copy returns a copy of storage.

func (Storage) String 

func (s Storage) String() string

String implements the stringer interface

func (Storage) Validate 

func (s Storage) Validate() error

Validate performs a basic validation of the Storage fields.

type TransactionLogs 

type TransactionLogs struct {
	Hash string          `json:"hash"`
	Logs []*ethtypes.Log `json:"logs"`
}

TransactionLogs define the logs generated from a transaction execution with a given hash. It it used for import/export data as transactions are not persisted on blockchain state after an upgrade.

func NewTransactionLogs 

func NewTransactionLogs(hash ethcmn.Hash, logs []*ethtypes.Log) TransactionLogs

NewTransactionLogs creates a new NewTransactionLogs instance.

func (TransactionLogs) Validate 

func (tx TransactionLogs) Validate() error

Validate performs a basic validation of a GenesisAccount fields.

type TxData 

type TxData struct {
	AccountNonce uint64     `json:"nonce"`
	Price        sdk.Int    `json:"gasPrice"`
	GasLimit     uint64     `json:"gas"`
	Recipient    *Recipient `json:"to" rlp:"nil"` // nil means contract creation
	Amount       sdk.Int    `json:"value"`
	Payload      []byte     `json:"input"`

	// signature values
	V []byte `json:"v"`
	R []byte `json:"r"`
	S []byte `json:"s"`

	// hash is only used when marshaling to JSON
	Hash string `json:"hash" rlp:"-"`
}

TxData implements the Ethereum transaction data structure. It is used solely as intended in Ethereum abiding by the protocol.

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