state

package
v0.1.3 Latest Latest
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 Go to latest Published: Jan 16, 2024 License: GPL-3.0 Imports: 32 Imported by: 0

Documentation

Overview

Package state provides a caching layer atop the Ethereum state trie.

Index

Constants

View Source 
const (
	//FirstContractIncarnation - first incarnation for contract accounts. After 1 it increases by 1.
	FirstContractIncarnation = 1
	//NonContractIncarnation incarnation for non contracts
	NonContractIncarnation = 0
)

Variables

View Source 
var SystemAddress = types.HexToAddress("0xfffffffffffffffffffffffffffffffffffffffe")

SystemAddress - sender address for internal state updates.

Functions

func EncodeBeforeState 

func EncodeBeforeState(w io.Writer, list Items, codeHash HashCodes)

func FindByHistory 

func FindByHistory(tx kv.Tx, indexC kv.Cursor, changesC kv.CursorDupSort, storage bool, key []byte, timestamp uint64) ([]byte, error)

func GetAsOf 

func GetAsOf(tx kv.Tx, indexC kv.Cursor, changesC kv.CursorDupSort, storage bool, key []byte, timestamp uint64) ([]byte, error)

func WalkAsOfAccounts 

func WalkAsOfAccounts(tx kv.Tx, startAddress types.Address, timestamp uint64, walker func(k []byte, v []byte) (bool, error)) error

func WalkAsOfStorage 

func WalkAsOfStorage(tx kv.Tx, address types.Address, incarnation uint16, startLocation types.Hash, timestamp uint64, walker func(k1, k2, v []byte) (bool, error)) error

startKey is the concatenation of address and incarnation (BigEndian 8 byte)

Types

type BalanceIncrease 

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

BalanceIncrease represents the increase of balance of an account that did not require reading the account first

type ChangeSetWriter 

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

ChangeSetWriter is a mock StateWriter that accumulates changes in-memory into ChangeSets.

func NewChangeSetWriter 

func NewChangeSetWriter() *ChangeSetWriter

func NewChangeSetWriterPlain 

func NewChangeSetWriterPlain(db kv.RwTx, blockNumber uint64) *ChangeSetWriter

func (*ChangeSetWriter) CreateContract 

func (w *ChangeSetWriter) CreateContract(address types.Address) error

func (*ChangeSetWriter) DeleteAccount 

func (w *ChangeSetWriter) DeleteAccount(address types.Address, original *account.StateAccount) error

func (*ChangeSetWriter) GetAccountChanges 

func (w *ChangeSetWriter) GetAccountChanges() (*changeset.ChangeSet, error)

func (*ChangeSetWriter) GetStorageChanges 

func (w *ChangeSetWriter) GetStorageChanges() (*changeset.ChangeSet, error)

func (*ChangeSetWriter) PrintChangedAccounts 

func (w *ChangeSetWriter) PrintChangedAccounts()

func (*ChangeSetWriter) UpdateAccountCode 

func (w *ChangeSetWriter) UpdateAccountCode(address types.Address, incarnation uint16, codeHash types.Hash, code []byte) error

func (*ChangeSetWriter) UpdateAccountData 

func (w *ChangeSetWriter) UpdateAccountData(address types.Address, original, account *account.StateAccount) error

func (*ChangeSetWriter) WriteAccountStorage 

func (w *ChangeSetWriter) WriteAccountStorage(address types.Address, incarnation uint16, key *types.Hash, original, value *uint256.Int) error

func (*ChangeSetWriter) WriteChangeSets 

func (w *ChangeSetWriter) WriteChangeSets() error

func (*ChangeSetWriter) WriteHistory 

func (w *ChangeSetWriter) WriteHistory() error

type Code 

type Code []byte

func (Code) String 

func (c Code) String() string

type Entire 

type Entire struct {
	Header       *block.Header    `json:"header"`
	Uncles       []*types2.Header `json:"uncles"`
	Transactions [][]byte         `json:"transactions"`
	Snap         *Snapshot        `json:"snap"`
	Proof        types.Hash       `json:"proof"`
	Senders      []types.Address  `json:"senders"`
}

func (Entire) Clone 

func (e Entire) Clone() Entire

type EntireCode 

type EntireCode struct {
	CoinBase types.Address   `json:"coinBase"`
	Entire   Entire          `json:"entire"`
	Codes    []*HashCode     `json:"codes"`
	Headers  []*block.Header `json:"headers"`
	Rewards  []*block.Reward `json:"rewards"`
}

type GetOneFun 

type GetOneFun func(table string, key []byte) ([]byte, error)

type HashCode 

type HashCode struct {
	Hash types.Hash `json:"hash"`
	Code []byte     `json:"code"`
}

type HashCodes 

type HashCodes []*HashCode

func (HashCodes) Len 

func (s HashCodes) Len() int

func (HashCodes) Less 

func (s HashCodes) Less(i, j int) bool

func (HashCodes) Swap 

func (s HashCodes) Swap(i, j int)

type HistoryStateReader 

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

func NewStateHistoryReader 

func NewStateHistoryReader(tx kv.Tx, db kv.Getter, blockNr uint64) *HistoryStateReader

func (*HistoryStateReader) GetOne 

func (dbr *HistoryStateReader) GetOne(bucket string, key []byte) ([]byte, error)

func (*HistoryStateReader) ReadAccountCode 

func (r *HistoryStateReader) ReadAccountCode(address types.Address, incarnation uint16, codeHash types.Hash) ([]byte, error)

func (*HistoryStateReader) ReadAccountCodeSize 

func (r *HistoryStateReader) ReadAccountCodeSize(address types.Address, incarnation uint16, codeHash types.Hash) (int, error)

func (*HistoryStateReader) ReadAccountData 

func (r *HistoryStateReader) ReadAccountData(address types.Address) (*account.StateAccount, error)

func (*HistoryStateReader) ReadAccountIncarnation 

func (r *HistoryStateReader) ReadAccountIncarnation(address types.Address) (uint16, error)

func (*HistoryStateReader) ReadAccountStorage 

func (r *HistoryStateReader) ReadAccountStorage(address types.Address, incarnation uint16, key *types.Hash) ([]byte, error)

func (*HistoryStateReader) Rollback 

func (dbr *HistoryStateReader) Rollback()

func (*HistoryStateReader) SetBlockNumber 

func (dbr *HistoryStateReader) SetBlockNumber(blockNr uint64)

type IntraBlockState 

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

IntraBlockState is responsible for caching and managing state changes that occur during block's execution. NOT THREAD SAFE!

func New 

func New(stateReader StateReader) *IntraBlockState

Create a new state from a given trie

func (*IntraBlockState) AddAddressToAccessList 

func (sdb *IntraBlockState) AddAddressToAccessList(addr types.Address)

AddAddressToAccessList adds the given address to the access list

func (*IntraBlockState) AddBalance 

func (sdb *IntraBlockState) AddBalance(addr types.Address, amount *uint256.Int)

AddBalance adds amount to the account associated with addr. DESCRIBED: docs/programmers_guide/guide.md#address---identifier-of-an-account

func (*IntraBlockState) AddLog 

func (sdb *IntraBlockState) AddLog(log2 *block.Log)

func (*IntraBlockState) AddRefund 

func (sdb *IntraBlockState) AddRefund(gas uint64)

AddRefund adds gas to the refund counter

func (*IntraBlockState) AddSlotToAccessList 

func (sdb *IntraBlockState) AddSlotToAccessList(addr types.Address, slot types.Hash)

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

func (*IntraBlockState) AddressInAccessList 

func (sdb *IntraBlockState) AddressInAccessList(addr types.Address) bool

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

func (*IntraBlockState) BalanceIncreaseSet 

func (sdb *IntraBlockState) BalanceIncreaseSet() map[types.Address]uint256.Int

func (*IntraBlockState) BeforeStateRoot 

func (sdb *IntraBlockState) BeforeStateRoot() (hash types.Hash)

BeforeStateRoot calculate used state hash

it should be invoked after all txs exec

func (*IntraBlockState) BeginWriteCodes 

func (sdb *IntraBlockState) BeginWriteCodes()

func (*IntraBlockState) BeginWriteSnapshot 

func (sdb *IntraBlockState) BeginWriteSnapshot()

func (*IntraBlockState) CodeHashes 

func (sdb *IntraBlockState) CodeHashes() map[types.Hash][]byte

func (*IntraBlockState) CommitBlock 

func (sdb *IntraBlockState) CommitBlock(chainRules *params.Rules, stateWriter StateWriter) error

CommitBlock finalizes the state by removing the self destructed objects and clears the journal as well as the refunds.

func (*IntraBlockState) CreateAccount 

func (sdb *IntraBlockState) CreateAccount(addr types.Address, contractCreation bool)

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 AMT doesn't disappear.

func (*IntraBlockState) Empty 

func (sdb *IntraBlockState) Empty(addr types.Address) bool

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

func (*IntraBlockState) Error 

func (sdb *IntraBlockState) Error() error

func (*IntraBlockState) Exist 

func (sdb *IntraBlockState) Exist(addr types.Address) bool

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

func (*IntraBlockState) FinalizeTx 

func (sdb *IntraBlockState) FinalizeTx(chainRules *params.Rules, stateWriter StateWriter) error

FinalizeTx should be called after every transaction.

func (*IntraBlockState) GenerateRootHash 

func (s *IntraBlockState) GenerateRootHash() types.Hash

GenerateRootHash calculate root hash

func (*IntraBlockState) GetBalance 

func (sdb *IntraBlockState) GetBalance(addr types.Address) *uint256.Int

GetBalance retrieves the balance from the given address or 0 if object not found DESCRIBED: docs/programmers_guide/guide.md#address---identifier-of-an-account

func (*IntraBlockState) GetCode 

func (sdb *IntraBlockState) GetCode(addr types.Address) []byte

DESCRIBED: docs/programmers_guide/guide.md#address---identifier-of-an-account

func (*IntraBlockState) GetCodeHash 

func (sdb *IntraBlockState) GetCodeHash(addr types.Address) types.Hash

DESCRIBED: docs/programmers_guide/guide.md#address---identifier-of-an-account

func (*IntraBlockState) GetCodeSize 

func (sdb *IntraBlockState) GetCodeSize(addr types.Address) int

DESCRIBED: docs/programmers_guide/guide.md#address---identifier-of-an-account

func (*IntraBlockState) GetCommittedState 

func (sdb *IntraBlockState) GetCommittedState(addr types.Address, key *types.Hash, value *uint256.Int)

GetCommittedState retrieves a value from the given account's committed storage trie. DESCRIBED: docs/programmers_guide/guide.md#address---identifier-of-an-account

func (*IntraBlockState) GetIncarnation 

func (sdb *IntraBlockState) GetIncarnation(addr types.Address) uint16

func (*IntraBlockState) GetLogs 

func (sdb *IntraBlockState) GetLogs(hash types.Hash) []*block.Log

func (*IntraBlockState) GetNonce 

func (sdb *IntraBlockState) GetNonce(addr types.Address) uint64

DESCRIBED: docs/programmers_guide/guide.md#address---identifier-of-an-account

func (*IntraBlockState) GetOrNewStateObject 

func (sdb *IntraBlockState) GetOrNewStateObject(addr types.Address) *stateObject

Retrieve a state object or create a new state object if nil.

func (*IntraBlockState) GetRefund 

func (sdb *IntraBlockState) GetRefund() uint64

GetRefund returns the current value of the refund counter.

func (*IntraBlockState) GetState 

func (sdb *IntraBlockState) GetState(addr types.Address, key *types.Hash, value *uint256.Int)

GetState retrieves a value from the given account's storage trie. DESCRIBED: docs/programmers_guide/guide.md#address---identifier-of-an-account

func (*IntraBlockState) GetStateReader 

func (sdb *IntraBlockState) GetStateReader() StateReader

func (*IntraBlockState) HasSelfdestructed 

func (sdb *IntraBlockState) HasSelfdestructed(addr types.Address) bool

func (*IntraBlockState) HasSuicided 

func (sdb *IntraBlockState) HasSuicided(addr types.Address) bool

func (*IntraBlockState) IntermediateRoot 

func (s *IntraBlockState) IntermediateRoot() types.Hash

IntermediateRoot root

func (*IntraBlockState) Logs 

func (sdb *IntraBlockState) Logs() []*block.Log

func (*IntraBlockState) MakeWriteSet 

func (sdb *IntraBlockState) MakeWriteSet(chainRules *params.Rules, stateWriter StateWriter) error

func (*IntraBlockState) Prepare 

func (sdb *IntraBlockState) Prepare(thash, bhash types.Hash, ti int)

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

func (*IntraBlockState) PrepareAccessList 

func (sdb *IntraBlockState) PrepareAccessList(sender types.Address, dst *types.Address, precompiles []types.Address, list transaction.AccessList)

PrepareAccessList handles the preparatory steps for executing a state transition with regards to both EIP-2929 and EIP-2930:

- Add sender to access list (2929) - Add destination to access list (2929) - Add precompiles to access list (2929) - Add the contents of the optional tx access list (2930)

This method should only be called if Yolov3/Berlin/2929+2930 is applicable at the current number.

func (*IntraBlockState) PrepareReadableSnapshot 

func (sdb *IntraBlockState) PrepareReadableSnapshot(data []byte) error

func (*IntraBlockState) Print 

func (sdb *IntraBlockState) Print()

func (*IntraBlockState) Reset 

func (sdb *IntraBlockState) Reset()

Reset clears out all ephemeral state objects from the state db, but keeps the underlying state trie to avoid reloading data for the next operations.

func (*IntraBlockState) RevertToSnapshot 

func (sdb *IntraBlockState) RevertToSnapshot(revid int)

RevertToSnapshot reverts all state changes made since the given revision.

func (*IntraBlockState) Selfdestruct 

func (sdb *IntraBlockState) Selfdestruct(addr types.Address) bool

Selfdestruct marks the given account as suicided. This 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 (*IntraBlockState) SetBalance 

func (sdb *IntraBlockState) SetBalance(addr types.Address, amount *uint256.Int)

DESCRIBED: docs/programmers_guide/guide.md#address---identifier-of-an-account

func (*IntraBlockState) SetCode 

func (sdb *IntraBlockState) SetCode(addr types.Address, code []byte)

DESCRIBED: docs/programmers_guide/guide.md#code-hash DESCRIBED: docs/programmers_guide/guide.md#address---identifier-of-an-account

func (*IntraBlockState) SetGetOneFun 

func (s *IntraBlockState) SetGetOneFun(f1 GetOneFun)

func (*IntraBlockState) SetHeight 

func (sdb *IntraBlockState) SetHeight(height uint64)

func (*IntraBlockState) SetIncarnation 

func (sdb *IntraBlockState) SetIncarnation(addr types.Address, incarnation uint16)

SetIncarnation sets incarnation for account if account exists

func (*IntraBlockState) SetNonce 

func (sdb *IntraBlockState) SetNonce(addr types.Address, nonce uint64)

DESCRIBED: docs/programmers_guide/guide.md#address---identifier-of-an-account

func (*IntraBlockState) SetOutHash 

func (sdb *IntraBlockState) SetOutHash(hash types.Hash)

func (*IntraBlockState) SetSnapshot 

func (sdb *IntraBlockState) SetSnapshot(snap *Snapshot)

func (*IntraBlockState) SetState 

func (sdb *IntraBlockState) SetState(addr types.Address, key *types.Hash, value uint256.Int)

DESCRIBED: docs/programmers_guide/guide.md#address---identifier-of-an-account

func (*IntraBlockState) SetStateReader 

func (sdb *IntraBlockState) SetStateReader(reader StateReader)

func (*IntraBlockState) SetStorage 

func (sdb *IntraBlockState) SetStorage(addr types.Address, storage Storage)

SetStorage replaces the entire storage for the specified account with given storage. This function should only be used for debugging.

func (*IntraBlockState) SetTrace 

func (sdb *IntraBlockState) SetTrace(trace bool)

func (*IntraBlockState) SetTracer 

func (sdb *IntraBlockState) SetTracer(tracer StateTracer)

func (*IntraBlockState) SlotInAccessList 

func (sdb *IntraBlockState) SlotInAccessList(addr types.Address, slot types.Hash) (addressPresent bool, slotPresent bool)

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

func (*IntraBlockState) Snap 

func (sdb *IntraBlockState) Snap() *Snapshot

func (*IntraBlockState) Snapshot 

func (sdb *IntraBlockState) Snapshot() int

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

func (*IntraBlockState) SoftFinalise 

func (sdb *IntraBlockState) SoftFinalise()

func (*IntraBlockState) SubBalance 

func (sdb *IntraBlockState) SubBalance(addr types.Address, amount *uint256.Int)

SubBalance subtracts amount from the account associated with addr. DESCRIBED: docs/programmers_guide/guide.md#address---identifier-of-an-account

func (*IntraBlockState) SubRefund 

func (sdb *IntraBlockState) SubRefund(gas uint64)

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

func (*IntraBlockState) Suicide 

func (sdb *IntraBlockState) Suicide(addr types.Address) bool

Suicide marks the given account as suicided. This 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 (*IntraBlockState) TxIndex 

func (sdb *IntraBlockState) TxIndex() int

TxIndex returns the current transaction index set by Prepare.

func (*IntraBlockState) WrittenSnapshot 

func (sdb *IntraBlockState) WrittenSnapshot(hash types.Hash) []byte

type Item 

type Item struct {
	Key   []byte `json:"key"`
	Value []byte `json:"value"`
}

type Items 

type Items []*Item

func (Items) Len 

func (s Items) Len() int

func (Items) Less 

func (s Items) Less(i, j int) bool

func (Items) Swap 

func (s Items) Swap(i, j int)

type NoopWriter 

type NoopWriter struct {
}

func NewNoopWriter 

func NewNoopWriter() *NoopWriter

func (*NoopWriter) CreateContract 

func (nw *NoopWriter) CreateContract(address types.Address) error

func (*NoopWriter) DeleteAccount 

func (nw *NoopWriter) DeleteAccount(address types.Address, original *account.StateAccount) error

func (*NoopWriter) UpdateAccountCode 

func (nw *NoopWriter) UpdateAccountCode(address types.Address, incarnation uint16, codeHash types.Hash, code []byte) error

func (*NoopWriter) UpdateAccountData 

func (nw *NoopWriter) UpdateAccountData(address types.Address, original, account *account.StateAccount) error

func (*NoopWriter) WriteAccountStorage 

func (nw *NoopWriter) WriteAccountStorage(address types.Address, incarnation uint16, key *types.Hash, original, value *uint256.Int) error

func (*NoopWriter) WriteChangeSets 

func (nw *NoopWriter) WriteChangeSets() error

func (*NoopWriter) WriteHistory 

func (nw *NoopWriter) WriteHistory() error

type PlainState 

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

State at the beginning of blockNr

func NewPlainState 

func NewPlainState(tx kv.Tx, blockNr uint64) *PlainState

func (*PlainState) CreateContract 

func (s *PlainState) CreateContract(address types.Address) error

func (*PlainState) DeleteAccount 

func (s *PlainState) DeleteAccount(address types.Address, original *account.StateAccount) error

func (*PlainState) ForEachStorage 

func (s *PlainState) ForEachStorage(addr types.Address, startLocation types.Hash, cb func(key, seckey types.Hash, value uint256.Int) bool, maxResults int) error

func (*PlainState) GetBlockNr 

func (s *PlainState) GetBlockNr() uint64

func (*PlainState) ReadAccountCode 

func (s *PlainState) ReadAccountCode(address types.Address, incarnation uint16, codeHash types.Hash) ([]byte, error)

func (*PlainState) ReadAccountCodeSize 

func (s *PlainState) ReadAccountCodeSize(address types.Address, incarnation uint16, codeHash types.Hash) (int, error)

func (*PlainState) ReadAccountData 

func (s *PlainState) ReadAccountData(address types.Address) (*account.StateAccount, error)

func (*PlainState) ReadAccountIncarnation 

func (s *PlainState) ReadAccountIncarnation(address types.Address) (uint16, error)

func (*PlainState) ReadAccountStorage 

func (s *PlainState) ReadAccountStorage(address types.Address, incarnation uint16, key *types.Hash) ([]byte, error)

func (*PlainState) SetBlockNr 

func (s *PlainState) SetBlockNr(blockNr uint64)

func (*PlainState) SetTrace 

func (s *PlainState) SetTrace(trace bool)

func (*PlainState) UpdateAccountCode 

func (s *PlainState) UpdateAccountCode(address types.Address, incarnation uint16, codeHash types.Hash, code []byte) error

func (*PlainState) UpdateAccountData 

func (s *PlainState) UpdateAccountData(address types.Address, original, account *account.StateAccount) error

func (*PlainState) WriteAccountStorage 

func (s *PlainState) WriteAccountStorage(address types.Address, incarnation uint16, key *types.Hash, original, value *uint256.Int) error

type PlainStateReader 

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

PlainStateReader reads data from so called "plain state". Data in the plain state is stored using un-hashed account/storage items as opposed to the "normal" state that uses hashes of merkle paths to store items.

func NewPlainStateReader 

func NewPlainStateReader(db kv.Getter) *PlainStateReader

func (*PlainStateReader) ReadAccountCode 

func (r *PlainStateReader) ReadAccountCode(address types.Address, incarnation uint16, codeHash types.Hash) ([]byte, error)

func (*PlainStateReader) ReadAccountCodeSize 

func (r *PlainStateReader) ReadAccountCodeSize(address types.Address, incarnation uint16, codeHash types.Hash) (int, error)

func (*PlainStateReader) ReadAccountData 

func (r *PlainStateReader) ReadAccountData(address types.Address) (*account.StateAccount, error)

func (*PlainStateReader) ReadAccountIncarnation 

func (r *PlainStateReader) ReadAccountIncarnation(address types.Address) (uint16, error)

func (*PlainStateReader) ReadAccountStorage 

func (r *PlainStateReader) ReadAccountStorage(address types.Address, incarnation uint16, key *types.Hash) ([]byte, error)

type PlainStateWriter 

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

func NewPlainStateWriter 

func NewPlainStateWriter(db putDel, changeSetsDB kv.RwTx, blockNumber uint64) *PlainStateWriter

func NewPlainStateWriterNoHistory 

func NewPlainStateWriterNoHistory(db putDel) *PlainStateWriter

func (*PlainStateWriter) ChangeSetWriter 

func (w *PlainStateWriter) ChangeSetWriter() *ChangeSetWriter

func (*PlainStateWriter) CreateContract 

func (w *PlainStateWriter) CreateContract(address types.Address) error

func (*PlainStateWriter) DeleteAccount 

func (w *PlainStateWriter) DeleteAccount(address types.Address, original *account.StateAccount) error

func (*PlainStateWriter) UpdateAccountCode 

func (w *PlainStateWriter) UpdateAccountCode(address types.Address, incarnation uint16, codeHash types.Hash, code []byte) error

func (*PlainStateWriter) UpdateAccountData 

func (w *PlainStateWriter) UpdateAccountData(address types.Address, original, account *account.StateAccount) error

func (*PlainStateWriter) WriteAccountStorage 

func (w *PlainStateWriter) WriteAccountStorage(address types.Address, incarnation uint16, key *types.Hash, original, value *uint256.Int) error

func (*PlainStateWriter) WriteChangeSets 

func (w *PlainStateWriter) WriteChangeSets() error

func (*PlainStateWriter) WriteHistory 

func (w *PlainStateWriter) WriteHistory() error

type Snapshot 

type Snapshot struct {
	Items   Items      `json:"items"`
	OutHash types.Hash `json:"outHash"`
	// contains filtered or unexported fields
}

func NewReadableSnapshot 

func NewReadableSnapshot() *Snapshot

func NewWritableSnapshot 

func NewWritableSnapshot() *Snapshot

func ReadSnapshotData 

func ReadSnapshotData(data []byte) (*Snapshot, error)

func (*Snapshot) AddAccount 

func (s *Snapshot) AddAccount(address types.Address, account *account.StateAccount)

func (*Snapshot) AddStorage 

func (s *Snapshot) AddStorage(address types.Address, key *types.Hash, incarnation uint16, value []byte)

func (*Snapshot) CanWrite 

func (s *Snapshot) CanWrite() bool

func (*Snapshot) ReadAccountData 

func (s *Snapshot) ReadAccountData(address types.Address) (*account.StateAccount, error)

func (*Snapshot) ReadAccountStorage 

func (s *Snapshot) ReadAccountStorage(address types.Address, incarnation uint16, key *types.Hash) ([]byte, error)

func (*Snapshot) SetGetFun 

func (s *Snapshot) SetGetFun(f GetOneFun)

func (*Snapshot) SetHash 

func (s *Snapshot) SetHash(hash types.Hash)

type StateReader 

type StateReader interface {
	ReadAccountData(address types.Address) (*account.StateAccount, error)
	ReadAccountStorage(address types.Address, incarnation uint16, key *types.Hash) ([]byte, error)
	ReadAccountCode(address types.Address, incarnation uint16, codeHash types.Hash) ([]byte, error)
	ReadAccountCodeSize(address types.Address, incarnation uint16, codeHash types.Hash) (int, error)
	ReadAccountIncarnation(address types.Address) (uint16, error)
}

type StateTracer 

type StateTracer interface {
	CaptureAccountRead(account types.Address) error
	CaptureAccountWrite(account types.Address) error
}

type StateWriter 

type StateWriter interface {
	UpdateAccountData(address types.Address, original, account *account.StateAccount) error
	UpdateAccountCode(address types.Address, incarnation uint16, codeHash types.Hash, code []byte) error
	DeleteAccount(address types.Address, original *account.StateAccount) error
	WriteAccountStorage(address types.Address, incarnation uint16, key *types.Hash, original, value *uint256.Int) error
	CreateContract(address types.Address) error
}

type Storage 

type Storage map[types.Hash]uint256.Int

func (Storage) Copy 

func (s Storage) Copy() Storage

func (Storage) String 

func (s Storage) String() (str string)

type WriterWithChangeSets 

type WriterWithChangeSets interface {
	StateWriter
	WriteChangeSets() error
	WriteHistory() error
}

Source Files

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