state

package module
v0.0.0-...-98baaec Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Apr 15, 2022 License: MPL-2.0 Imports: 13 Imported by: 0

Documentation

Index

Constants

View Source 
const (

	// Per transaction not creating a contract
	TxGas uint64 = 21000

	// Per transaction that creates a contract
	TxGasContractCreation uint64 = 53000
)
View Source 
const HashLength = 32

Variables

View Source 
var (
	EmptyCodeHash = bytesToHash(ethgo.Keccak256(nil))

	// EmptyRootHash is the root when there are no transactions
	EmptyRootHash = StringToHash("0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")
)

Functions

func StringToHash 

func StringToHash(str string) evmc.Hash

func TransactionGasCost 

func TransactionGasCost(msg *Message, isHomestead, isIstanbul bool) (uint64, error)

Types

type Account 

type Account struct {
	Nonce    uint64
	Balance  *big.Int
	Root     evmc.Hash
	CodeHash []byte
	Code     []byte
}

Account is an object we can retrieve from the state

func (*Account) Copy 

func (a *Account) Copy() *Account

type Cheatcode 

type Cheatcode interface {
	CanRun(addr evmc.Address) bool
	Run(addr evmc.Address, input []byte)
}

type Config 

type Config struct {
	GetHash    GetHashByNumber
	Ctx        TxContext
	Rev        evmc.Revision
	State      Snapshot
	Cheatcodes []Cheatcode
}

func DefaultConfig 

func DefaultConfig() *Config

type ConfigOption 

type ConfigOption func(*Config)

func WithCheatcode 

func WithCheatcode(cheat Cheatcode) ConfigOption

func WithContext 

func WithContext(ctx TxContext) ConfigOption

func WithGetHash 

func WithGetHash(hash GetHashByNumber) ConfigOption

func WithRevision 

func WithRevision(rev evmc.Revision) ConfigOption

func WithState 

func WithState(state Snapshot) ConfigOption

type Contract 

type Contract struct {
	Type        evmc.CallKind
	CodeAddress evmc.Address
	Address     evmc.Address
	Caller      evmc.Address
	Depth       int
	Value       *big.Int
	Input       []byte
	Gas         uint64
	Static      bool
	Salt        evmc.Hash
}

Contract is the instance being called

func NewContract 

func NewContract(typ evmc.CallKind, depth int, from evmc.Address, to evmc.Address, value *big.Int, gas uint64, input []byte) *Contract

func NewContractCall 

func NewContractCall(depth int, from evmc.Address, to evmc.Address, value *big.Int, gas uint64, input []byte) *Contract

func NewContractCreation 

func NewContractCreation(depth int, from evmc.Address, to evmc.Address, value *big.Int, gas uint64, code []byte) *Contract

type EmptyState 

type EmptyState struct {
}

func (*EmptyState) GetAccount 

func (e *EmptyState) GetAccount(addr evmc.Address) (*Account, error)

func (*EmptyState) GetStorage 

func (e *EmptyState) GetStorage(addr evmc.Address, root evmc.Hash, key evmc.Hash) evmc.Hash

type GetHashByNumber 

type GetHashByNumber = func(i uint64) evmc.Hash

getHashByNumber returns the hash function of a block number

type Log 

type Log struct {
	Address evmc.Address
	Topics  []evmc.Hash
	Data    []byte
}

type Message 

type Message struct {
	Nonce    uint64
	GasPrice *big.Int
	Gas      uint64
	To       *evmc.Address
	Value    *big.Int
	Input    []byte
	From     evmc.Address
}

func (*Message) IsContractCreation 

func (t *Message) IsContractCreation() bool

type Object 

type Object struct {
	Address   evmc.Address
	CodeHash  evmc.Hash
	Balance   *big.Int
	Root      evmc.Hash
	Nonce     uint64
	Deleted   bool
	DirtyCode bool
	Code      []byte
	Storage   []*StorageObject
}

Object is the serialization of the radix object (can be merged to StateObject?).

type Output 

type Output struct {
	Logs            []*Log
	Success         bool
	GasLeft         uint64
	ContractAddress evmc.Address
	ReturnValue     []byte
}

type Snapshot 

type Snapshot interface {
	GetStorage(addr evmc.Address, root evmc.Hash, key evmc.Hash) evmc.Hash
	GetAccount(addr evmc.Address) (*Account, error)
}

type StorageObject 

type StorageObject struct {
	Deleted bool
	Key     []byte
	Val     []byte
}

StorageObject is an entry in the storage

type Transition 

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

func NewTransition 

func NewTransition(opts ...ConfigOption) *Transition

NewExecutor creates a new executor

func (*Transition) AccessAccount 

func (t *Transition) AccessAccount(addr evmc.Address) evmc.AccessStatus

func (*Transition) AccessStorage 

func (t *Transition) AccessStorage(addr evmc.Address, key evmc.Hash) evmc.AccessStatus

func (*Transition) AccountExists 

func (t *Transition) AccountExists(addr evmc.Address) bool

func (*Transition) Apply 

func (t *Transition) Apply(msg *Message) *Output

func (*Transition) Call 

func (t *Transition) Call(kind evmc.CallKind,
	recipient evmc.Address, sender evmc.Address, value evmc.Hash, input []byte, gas int64, depth int,
	static bool, salt evmc.Hash, codeAddress evmc.Address) ([]byte, int64, evmc.Address, error)

func (*Transition) Callx 

func (t *Transition) Callx(c *Contract) ([]byte, int64, evmc.Address, error)

func (*Transition) Commit 

func (e *Transition) Commit() []*Object

func (*Transition) EmitLog 

func (t *Transition) EmitLog(addr evmc.Address, topics []evmc.Hash, data []byte)

func (*Transition) GetBalance 

func (t *Transition) GetBalance(addr evmc.Address) evmc.Hash

func (*Transition) GetBlockHash 

func (t *Transition) GetBlockHash(number int64) (res evmc.Hash)

func (*Transition) GetCode 

func (t *Transition) GetCode(addr evmc.Address) []byte

func (*Transition) GetCodeHash 

func (t *Transition) GetCodeHash(addr evmc.Address) (res evmc.Hash)

func (*Transition) GetCodeSize 

func (t *Transition) GetCodeSize(addr evmc.Address) int

func (*Transition) GetNonce 

func (t *Transition) GetNonce(addr evmc.Address) uint64

func (*Transition) GetStorage 

func (t *Transition) GetStorage(addr evmc.Address, key evmc.Hash) evmc.Hash

func (*Transition) GetTxContext 

func (t *Transition) GetTxContext() evmc.TxContext

func (*Transition) Selfdestruct 

func (t *Transition) Selfdestruct(addr evmc.Address, beneficiary evmc.Address)

func (*Transition) SetStorage 

func (t *Transition) SetStorage(addr evmc.Address, key evmc.Hash, value evmc.Hash) evmc.StorageStatus

func (*Transition) Txn 

func (t *Transition) Txn() *Txn

func (*Transition) Write 

func (t *Transition) Write(msg *Message) (*Output, error)

Write writes another transaction to the executor

type TxContext 

type TxContext struct {
	Hash       evmc.Hash
	GasPrice   evmc.Hash
	Origin     evmc.Address
	Coinbase   evmc.Address
	Number     int64
	Timestamp  int64
	GasLimit   int64
	ChainID    int64
	Difficulty evmc.Hash
}

TxContext is the context of the transaction

type Txn 

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

Txn is a reference of the state

func NewTxn 

func NewTxn(snapshot Snapshot) *Txn

func (*Txn) AccountExists 

func (txn *Txn) AccountExists(addr evmc.Address) bool

func (*Txn) AddBalance 

func (txn *Txn) AddBalance(addr evmc.Address, balance *big.Int)

AddBalance adds balance

func (*Txn) AddRefund 

func (txn *Txn) AddRefund(gas uint64)

Refund

func (*Txn) AddSealingReward 

func (txn *Txn) AddSealingReward(addr evmc.Address, balance *big.Int)

func (*Txn) CleanDeleteObjects 

func (txn *Txn) CleanDeleteObjects(deleteEmptyObjects bool)

func (*Txn) Commit 

func (txn *Txn) Commit() []*Object

func (*Txn) CreateAccount 

func (txn *Txn) CreateAccount(addr evmc.Address)

func (*Txn) EmitLog 

func (txn *Txn) EmitLog(addr evmc.Address, topics []evmc.Hash, data []byte)

func (*Txn) GetAccount 

func (txn *Txn) GetAccount(addr evmc.Address) (*Account, bool)

GetAccount returns an account

func (*Txn) GetBalance 

func (txn *Txn) GetBalance(addr evmc.Address) *big.Int

GetBalance returns the balance of an address

func (*Txn) GetCode 

func (txn *Txn) GetCode(addr evmc.Address) []byte

func (*Txn) GetCodeHash 

func (txn *Txn) GetCodeHash(addr evmc.Address) (res evmc.Hash)

func (*Txn) GetCodeSize 

func (txn *Txn) GetCodeSize(addr evmc.Address) int

func (*Txn) GetCommittedState 

func (txn *Txn) GetCommittedState(addr evmc.Address, key evmc.Hash) evmc.Hash

GetCommittedState returns the state of the address in the trie

func (*Txn) GetNonce 

func (txn *Txn) GetNonce(addr evmc.Address) uint64

GetNonce returns the nonce of an addr

func (*Txn) GetRefund 

func (txn *Txn) GetRefund() uint64

func (*Txn) GetState 

func (txn *Txn) GetState(addr evmc.Address, key evmc.Hash) evmc.Hash

GetState returns the state of the address at a given key

func (*Txn) HasSuicided 

func (txn *Txn) HasSuicided(addr evmc.Address) bool

HasSuicided returns true if the account suicided

func (*Txn) IncrNonce 

func (txn *Txn) IncrNonce(addr evmc.Address)

IncrNonce increases the nonce of the address

func (*Txn) Logs 

func (txn *Txn) Logs() []*Log

func (*Txn) RevertToSnapshot 

func (txn *Txn) RevertToSnapshot(id int)

RevertToSnapshot reverts to a given snapshot

func (*Txn) SetBalance 

func (txn *Txn) SetBalance(addr evmc.Address, balance *big.Int)

SetBalance sets the balance

func (*Txn) SetCode 

func (txn *Txn) SetCode(addr evmc.Address, code []byte)

SetCode sets the code for an address

func (*Txn) SetNonce 

func (txn *Txn) SetNonce(addr evmc.Address, nonce uint64)

SetNonce reduces the balance

func (*Txn) SetState 

func (txn *Txn) SetState(addr evmc.Address, key, value evmc.Hash)

SetState change the state of an address

func (*Txn) SetStorage 

func (txn *Txn) SetStorage(addr evmc.Address, key evmc.Hash, value evmc.Hash) (status evmc.StorageStatus)

func (*Txn) Snapshot 

func (txn *Txn) Snapshot() int

Snapshot takes a snapshot at this point in time

func (*Txn) SubBalance 

func (txn *Txn) SubBalance(addr evmc.Address, amount *big.Int) error

SubBalance reduces the balance at address addr by amount

func (*Txn) SubRefund 

func (txn *Txn) SubRefund(gas uint64)

func (*Txn) Suicide 

func (txn *Txn) Suicide(addr evmc.Address) bool

Suicide marks the given account as suicided

func (*Txn) TouchAccount 

func (txn *Txn) TouchAccount(addr evmc.Address)

Source Files

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Directories

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