types

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Published: Sep 10, 2023 License: GPL-3.0 Imports: 21 Imported by: 0

Documentation

Overview

Package types contains data types related to Ethereum consensus.

Index

Constants

View Source
const (
	// BloomByteLength represents the number of bytes used in a header log bloom.
	BloomByteLength = 256

	// BloomBitLength represents the number of bits used in a header log bloom.
	BloomBitLength = 8 * BloomByteLength
)
View Source
const (
	// ReceiptStatusFailed is the status code of a transaction if execution failed.
	ReceiptStatusFailed = uint64(0)

	// ReceiptStatusSuccessful is the status code of a transaction if execution succeeded.
	ReceiptStatusSuccessful = uint64(1)
)
View Source
const (
	LegacyTxType = iota
	AccessListTxType
	DynamicFeeTxType
)

Transaction types.

Variables

View Source
var (
	EmptyRootHash  = common.HexToHash("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")
	EmptyUncleHash = rlpHash([]*Header(nil))
)
View Source
var (
	ErrInvalidSig           = errors.New("invalid transaction v, r, s values")
	ErrUnexpectedProtection = errors.New("transaction type does not supported EIP-155 protected signatures")
	ErrInvalidTxType        = errors.New("transaction type not valid in this context")
	ErrTxTypeNotSupported   = errors.New("transaction type not supported")
	ErrGasFeeCapTooLow      = errors.New("fee cap less than base fee")
)
View Source
var ErrInvalidChainId = errors.New("invalid chain id for signer")

Functions

func Bloom9

func Bloom9(data []byte) []byte

Bloom9 returns the bloom filter for the given data

func BloomLookup

func BloomLookup(bin Bloom, topic bytesBacked) bool

BloomLookup is a convenience-method to check presence in the bloom filter

func CalcUncleHash

func CalcUncleHash(uncles []*Header) common.Hash

func ConvertLegacyStoredReceipts

func ConvertLegacyStoredReceipts(raw []byte) ([]byte, error)

ConvertLegacyStoredReceipts takes the RLP encoding of an array of legacy stored receipts and returns a fresh RLP-encoded stored receipt.

func DeriveSha

func DeriveSha(list DerivableList, hasher TrieHasher) common.Hash

DeriveSha creates the tree hashes of transactions and receipts in a block header.

func HashDifference

func HashDifference(a, b []common.Hash) []common.Hash

HashDifference returns a new set which is the difference between a and b.

func HeaderParentHashFromRLP

func HeaderParentHashFromRLP(header []byte) common.Hash

HeaderParentHashFromRLP returns the parentHash of an RLP-encoded header. If 'header' is invalid, the zero hash is returned.

func IsLegacyStoredReceipts

func IsLegacyStoredReceipts(raw []byte) (bool, error)

IsLegacyStoredReceipts tries to parse the RLP-encoded blob first as an array of v3 stored receipt, then v4 stored receipt and returns true if successful.

func LogsBloom

func LogsBloom(logs []*Log) []byte

LogsBloom returns the bloom bytes for the given logs

func Sender

func Sender(signer Signer, tx *Transaction) (common.Address, error)

Sender returns the address derived from the signature (V, R, S) using secp256k1 elliptic curve and an error if it failed deriving or upon an incorrect signature.

Sender may cache the address, allowing it to be used regardless of signing method. The cache is invalidated if the cached signer does not match the signer used in the current call.

Types

type AccessList

type AccessList []AccessTuple

AccessList is an EIP-2930 access list.

func (AccessList) StorageKeys

func (al AccessList) StorageKeys() int

StorageKeys returns the total number of storage keys in the access list.

type AccessListTx

type AccessListTx struct {
	ChainID    *big.Int        // destination chain ID
	Nonce      uint64          // nonce of sender account
	GasPrice   *big.Int        // wei per gas
	Gas        uint64          // gas limit
	To         *common.Address `rlp:"nil"` // nil means contract creation
	Value      *big.Int        // wei amount
	Data       []byte          // contract invocation input data
	AccessList AccessList      // EIP-2930 access list
	V, R, S    *big.Int        // signature values
}

AccessListTx is the data of EIP-2930 access list transactions.

type AccessTuple

type AccessTuple struct {
	Address     common.Address `json:"address"        gencodec:"required"`
	StorageKeys []common.Hash  `json:"storageKeys"    gencodec:"required"`
}

AccessTuple is the element type of an access list.

func (AccessTuple) MarshalJSON

func (a AccessTuple) MarshalJSON() ([]byte, error)

MarshalJSON marshals as JSON.

func (*AccessTuple) UnmarshalJSON

func (a *AccessTuple) UnmarshalJSON(input []byte) error

UnmarshalJSON unmarshals from JSON.

type Block

type Block struct {

	// These fields are used by package eth to track
	// inter-peer block relay.
	ReceivedAt   time.Time
	ReceivedFrom interface{}
	// contains filtered or unexported fields
}

Block represents an entire block in the Ethereum blockchain.

func NewBlock

func NewBlock(header *Header, txs []*Transaction, uncles []*Header, receipts []*Receipt, hasher TrieHasher) *Block

NewBlock creates a new block. The input data is copied, changes to header and to the field values will not affect the block.

The values of TxHash, UncleHash, ReceiptHash and Bloom in header are ignored and set to values derived from the given txs, uncles and receipts.

func NewBlockWithHeader

func NewBlockWithHeader(header *Header) *Block

NewBlockWithHeader creates a block with the given header data. The header data is copied, changes to header and to the field values will not affect the block.

func (*Block) BaseFee

func (b *Block) BaseFee() *big.Int

func (*Block) Bloom

func (b *Block) Bloom() Bloom

func (*Block) Body

func (b *Block) Body() *Body

Body returns the non-header content of the block.

func (*Block) Coinbase

func (b *Block) Coinbase() common.Address

func (*Block) DecodeRLP

func (b *Block) DecodeRLP(s *rlp.Stream) error

DecodeRLP decodes the Ethereum

func (*Block) Difficulty

func (b *Block) Difficulty() *big.Int

func (*Block) EncodeRLP

func (b *Block) EncodeRLP(w io.Writer) error

EncodeRLP serializes b into the Ethereum RLP block format.

func (*Block) Extra

func (b *Block) Extra() []byte

func (*Block) GasLimit

func (b *Block) GasLimit() uint64

func (*Block) GasUsed

func (b *Block) GasUsed() uint64

func (*Block) Hash

func (b *Block) Hash() common.Hash

Hash returns the keccak256 hash of b's header. The hash is computed on the first call and cached thereafter.

func (*Block) Header

func (b *Block) Header() *Header

func (*Block) MixDigest

func (b *Block) MixDigest() common.Hash

func (*Block) Nonce

func (b *Block) Nonce() uint64

func (*Block) Number

func (b *Block) Number() *big.Int

func (*Block) NumberU64

func (b *Block) NumberU64() uint64

func (*Block) ParentHash

func (b *Block) ParentHash() common.Hash

func (*Block) ReceiptHash

func (b *Block) ReceiptHash() common.Hash

func (*Block) Root

func (b *Block) Root() common.Hash

func (*Block) SanityCheck

func (b *Block) SanityCheck() error

SanityCheck can be used to prevent that unbounded fields are stuffed with junk data to add processing overhead

func (*Block) Size

func (b *Block) Size() common.StorageSize

Size returns the true RLP encoded storage size of the block, either by encoding and returning it, or returning a previously cached value.

func (*Block) Time

func (b *Block) Time() uint64

func (*Block) Transaction

func (b *Block) Transaction(hash common.Hash) *Transaction

func (*Block) Transactions

func (b *Block) Transactions() Transactions

func (*Block) TxHash

func (b *Block) TxHash() common.Hash

func (*Block) UncleHash

func (b *Block) UncleHash() common.Hash

func (*Block) Uncles

func (b *Block) Uncles() []*Header

func (*Block) WithBody

func (b *Block) WithBody(transactions []*Transaction, uncles []*Header) *Block

WithBody returns a new block with the given transaction and uncle contents.

func (*Block) WithSeal

func (b *Block) WithSeal(header *Header) *Block

WithSeal returns a new block with the data from b but the header replaced with the sealed one.

type BlockNonce

type BlockNonce [8]byte

A BlockNonce is a 64-bit hash which proves (combined with the mix-hash) that a sufficient amount of computation has been carried out on a block.

func EncodeNonce

func EncodeNonce(i uint64) BlockNonce

EncodeNonce converts the given integer to a block nonce.

func (BlockNonce) MarshalText

func (n BlockNonce) MarshalText() ([]byte, error)

MarshalText encodes n as a hex string with 0x prefix.

func (BlockNonce) Uint64

func (n BlockNonce) Uint64() uint64

Uint64 returns the integer value of a block nonce.

func (*BlockNonce) UnmarshalText

func (n *BlockNonce) UnmarshalText(input []byte) error

UnmarshalText implements encoding.TextUnmarshaler.

type Blocks

type Blocks []*Block

type Bloom

type Bloom [BloomByteLength]byte

Bloom represents a 2048 bit bloom filter.

func BytesToBloom

func BytesToBloom(b []byte) Bloom

BytesToBloom converts a byte slice to a bloom filter. It panics if b is not of suitable size.

func CreateBloom

func CreateBloom(receipts Receipts) Bloom

CreateBloom creates a bloom filter out of the give Receipts (+Logs)

func (*Bloom) Add

func (b *Bloom) Add(d []byte)

Add adds d to the filter. Future calls of Test(d) will return true.

func (Bloom) Big

func (b Bloom) Big() *big.Int

Big converts b to a big integer. Note: Converting a bloom filter to a big.Int and then calling GetBytes does not return the same bytes, since big.Int will trim leading zeroes

func (Bloom) Bytes

func (b Bloom) Bytes() []byte

Bytes returns the backing byte slice of the bloom

func (Bloom) MarshalText

func (b Bloom) MarshalText() ([]byte, error)

MarshalText encodes b as a hex string with 0x prefix.

func (*Bloom) SetBytes

func (b *Bloom) SetBytes(d []byte)

SetBytes sets the content of b to the given bytes. It panics if d is not of suitable size.

func (Bloom) Test

func (b Bloom) Test(topic []byte) bool

Test checks if the given topic is present in the bloom filter

func (*Bloom) UnmarshalText

func (b *Bloom) UnmarshalText(input []byte) error

UnmarshalText b as a hex string with 0x prefix.

type Body

type Body struct {
	Transactions []*Transaction
	Uncles       []*Header
}

Body is a simple (mutable, non-safe) data container for storing and moving a block's data contents (transactions and uncles) together.

type DerivableList

type DerivableList interface {
	Len() int
	EncodeIndex(int, *bytes.Buffer)
}

DerivableList is the input to DeriveSha. It is implemented by the 'Transactions' and 'Receipts' types. This is internal, do not use these methods.

type DynamicFeeTx

type DynamicFeeTx struct {
	ChainID    *big.Int
	Nonce      uint64
	GasTipCap  *big.Int // a.k.a. maxPriorityFeePerGas
	GasFeeCap  *big.Int // a.k.a. maxFeePerGas
	Gas        uint64
	To         *common.Address `rlp:"nil"` // nil means contract creation
	Value      *big.Int
	Data       []byte
	AccessList AccessList

	// Signature values
	V *big.Int `json:"v" gencodec:"required"`
	R *big.Int `json:"r" gencodec:"required"`
	S *big.Int `json:"s" gencodec:"required"`
}

type EIP155Signer

type EIP155Signer struct {
	// contains filtered or unexported fields
}

EIP155Signer implements Signer using the EIP-155 rules. This accepts transactions which are replay-protected as well as unprotected homestead transactions.

func NewEIP155Signer

func NewEIP155Signer(chainId *big.Int) EIP155Signer

func (EIP155Signer) ChainID

func (s EIP155Signer) ChainID() *big.Int

func (EIP155Signer) Equal

func (s EIP155Signer) Equal(s2 Signer) bool

func (EIP155Signer) Hash

func (s EIP155Signer) Hash(tx *Transaction) common.Hash

Hash returns the hash to be signed by the sender. It does not uniquely identify the transaction.

func (EIP155Signer) Sender

func (s EIP155Signer) Sender(tx *Transaction) (common.Address, error)

func (EIP155Signer) SignatureValues

func (s EIP155Signer) SignatureValues(tx *Transaction, sig []byte) (R, S, V *big.Int, err error)

SignatureValues returns signature values. This signature needs to be in the [R || S || V] format where V is 0 or 1.

type FrontierSigner

type FrontierSigner struct{}

func (FrontierSigner) ChainID

func (s FrontierSigner) ChainID() *big.Int

func (FrontierSigner) Equal

func (s FrontierSigner) Equal(s2 Signer) bool

func (FrontierSigner) Hash

func (fs FrontierSigner) Hash(tx *Transaction) common.Hash

Hash returns the hash to be signed by the sender. It does not uniquely identify the transaction.

func (FrontierSigner) Sender

func (fs FrontierSigner) Sender(tx *Transaction) (common.Address, error)

func (FrontierSigner) SignatureValues

func (fs FrontierSigner) SignatureValues(tx *Transaction, sig []byte) (r, s, v *big.Int, err error)

SignatureValues returns signature values. This signature needs to be in the [R || S || V] format where V is 0 or 1.

type Header struct {
	ParentHash  common.Hash    `json:"parentHash"       gencodec:"required"`
	UncleHash   common.Hash    `json:"sha3Uncles"       gencodec:"required"`
	Coinbase    common.Address `json:"miner"`
	Root        common.Hash    `json:"stateRoot"        gencodec:"required"`
	TxHash      common.Hash    `json:"transactionsRoot" gencodec:"required"`
	ReceiptHash common.Hash    `json:"receiptsRoot"     gencodec:"required"`
	Bloom       Bloom          `json:"logsBloom"        gencodec:"required"`
	Difficulty  *big.Int       `json:"difficulty"       gencodec:"required"`
	Number      *big.Int       `json:"number"           gencodec:"required"`
	GasLimit    uint64         `json:"gasLimit"         gencodec:"required"`
	GasUsed     uint64         `json:"gasUsed"          gencodec:"required"`
	Time        uint64         `json:"timestamp"        gencodec:"required"`
	Extra       []byte         `json:"extraData"        gencodec:"required"`
	MixDigest   common.Hash    `json:"mixHash"`
	Nonce       BlockNonce     `json:"nonce"`

	// BaseFee was added by EIP-1559 and is ignored in legacy headers.
	BaseFee *big.Int `json:"baseFeePerGas" rlp:"optional"`
}

Header represents a block header in the Ethereum blockchain.

func CopyHeader

func CopyHeader(h *Header) *Header

CopyHeader creates a deep copy of a block header to prevent side effects from modifying a header variable.

func (*Header) EmptyBody

func (h *Header) EmptyBody() bool

EmptyBody returns true if there is no additional 'body' to complete the header that is: no transactions and no uncles.

func (*Header) EmptyReceipts

func (h *Header) EmptyReceipts() bool

EmptyReceipts returns true if there are no receipts for this header/block.

func (*Header) EncodeRLP

func (obj *Header) EncodeRLP(_w io.Writer) error

func (*Header) Hash

func (h *Header) Hash() common.Hash

Hash returns the block hash of the header, which is simply the keccak256 hash of its RLP encoding.

func (Header) MarshalJSON

func (h Header) MarshalJSON() ([]byte, error)

MarshalJSON marshals as JSON.

func (*Header) SanityCheck

func (h *Header) SanityCheck() error

SanityCheck checks a few basic things -- these checks are way beyond what any 'sane' production values should hold, and can mainly be used to prevent that the unbounded fields are stuffed with junk data to add processing overhead

func (*Header) Size

func (h *Header) Size() common.StorageSize

Size returns the approximate memory used by all internal contents. It is used to approximate and limit the memory consumption of various caches.

func (*Header) UnmarshalJSON

func (h *Header) UnmarshalJSON(input []byte) error

UnmarshalJSON unmarshals from JSON.

type HomesteadSigner

type HomesteadSigner struct{ FrontierSigner }

HomesteadTransaction implements TransactionInterface using the homestead rules.

func (HomesteadSigner) ChainID

func (s HomesteadSigner) ChainID() *big.Int

func (HomesteadSigner) Equal

func (s HomesteadSigner) Equal(s2 Signer) bool

func (HomesteadSigner) Sender

func (hs HomesteadSigner) Sender(tx *Transaction) (common.Address, error)

func (HomesteadSigner) SignatureValues

func (hs HomesteadSigner) SignatureValues(tx *Transaction, sig []byte) (r, s, v *big.Int, err error)

SignatureValues returns signature values. This signature needs to be in the [R || S || V] format where V is 0 or 1.

type LegacyTx

type LegacyTx struct {
	Nonce    uint64          // nonce of sender account
	GasPrice *big.Int        // wei per gas
	Gas      uint64          // gas limit
	To       *common.Address `rlp:"nil"` // nil means contract creation
	Value    *big.Int        // wei amount
	Data     []byte          // contract invocation input data
	V, R, S  *big.Int        // signature values
}

LegacyTx is the transaction data of regular Ethereum transactions.

type Log

type Log struct {
	// Consensus fields:
	// address of the contract that generated the event
	Address common.Address `json:"address" gencodec:"required"`
	// list of topics provided by the contract.
	Topics []common.Hash `json:"topics" gencodec:"required"`
	// supplied by the contract, usually ABI-encoded
	Data []byte `json:"data" gencodec:"required"`

	// Derived fields. These fields are filled in by the node
	// but not secured by consensus.
	// block in which the transaction was included
	BlockNumber uint64 `json:"blockNumber"`
	// hash of the transaction
	TxHash common.Hash `json:"transactionHash" gencodec:"required"`
	// index of the transaction in the block
	TxIndex uint `json:"transactionIndex"`
	// hash of the block in which the transaction was included
	BlockHash common.Hash `json:"blockHash"`
	// index of the log in the block
	Index uint `json:"logIndex"`

	// The Removed field is true if this log was reverted due to a chain reorganisation.
	// You must pay attention to this field if you receive logs through a filter query.
	Removed bool `json:"removed"`
}

Log represents a contract log event. These events are generated by the LOG opcode and stored/indexed by the node.

func (*Log) DecodeRLP

func (l *Log) DecodeRLP(s *rlp.Stream) error

DecodeRLP implements rlp.Decoder.

func (*Log) EncodeRLP

func (l *Log) EncodeRLP(w io.Writer) error

EncodeRLP implements rlp.Encoder.

func (Log) MarshalJSON

func (l Log) MarshalJSON() ([]byte, error)

MarshalJSON marshals as JSON.

func (*Log) UnmarshalJSON

func (l *Log) UnmarshalJSON(input []byte) error

UnmarshalJSON unmarshals from JSON.

type LogForStorage

type LogForStorage Log

LogForStorage is a wrapper around a Log that handles backward compatibility with prior storage formats.

func (*LogForStorage) DecodeRLP

func (l *LogForStorage) DecodeRLP(s *rlp.Stream) error

DecodeRLP implements rlp.Decoder.

Note some redundant fields(e.g. block number, tx hash etc) will be assembled later.

func (*LogForStorage) EncodeRLP

func (l *LogForStorage) EncodeRLP(w io.Writer) error

EncodeRLP implements rlp.Encoder.

type Message

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

Message is a fully derived transaction and implements core.Message

NOTE: In a future PR this will be removed.

func NewMessage

func NewMessage(from common.Address, to *common.Address, nonce uint64, amount *big.Int, gasLimit uint64, gasPrice, gasFeeCap, gasTipCap *big.Int, data []byte, accessList AccessList, isFake bool) Message

func (Message) AccessList

func (m Message) AccessList() AccessList

func (Message) Data

func (m Message) Data() []byte

func (Message) From

func (m Message) From() common.Address

func (Message) Gas

func (m Message) Gas() uint64

func (Message) GasFeeCap

func (m Message) GasFeeCap() *big.Int

func (Message) GasPrice

func (m Message) GasPrice() *big.Int

func (Message) GasTipCap

func (m Message) GasTipCap() *big.Int

func (Message) IsFake

func (m Message) IsFake() bool

func (Message) Nonce

func (m Message) Nonce() uint64

func (Message) To

func (m Message) To() *common.Address

func (Message) Value

func (m Message) Value() *big.Int

type Receipt

type Receipt struct {
	// Consensus fields: These fields are defined by the Yellow Paper
	Type              uint8  `json:"type,omitempty"`
	PostState         []byte `json:"root"`
	Status            uint64 `json:"status"`
	CumulativeGasUsed uint64 `json:"cumulativeGasUsed" gencodec:"required"`
	Bloom             Bloom  `json:"logsBloom"         gencodec:"required"`
	Logs              []*Log `json:"logs"              gencodec:"required"`

	// Implementation fields: These fields are added by geth when processing a transaction.
	// They are stored in the chain database.
	TxHash          common.Hash    `json:"transactionHash" gencodec:"required"`
	ContractAddress common.Address `json:"contractAddress"`
	GasUsed         uint64         `json:"gasUsed" gencodec:"required"`

	// Inclusion information: These fields provide information about the inclusion of the
	// transaction corresponding to this receipt.
	BlockHash        common.Hash `json:"blockHash,omitempty"`
	BlockNumber      *big.Int    `json:"blockNumber,omitempty"`
	TransactionIndex uint        `json:"transactionIndex"`
}

Receipt represents the results of a transaction.

func NewReceipt

func NewReceipt(root []byte, failed bool, cumulativeGasUsed uint64) *Receipt

NewReceipt creates a barebone transaction receipt, copying the init fields. Deprecated: create receipts using a struct literal instead.

func (*Receipt) DecodeRLP

func (r *Receipt) DecodeRLP(s *rlp.Stream) error

DecodeRLP implements rlp.Decoder, and loads the consensus fields of a receipt from an RLP stream.

func (*Receipt) EncodeRLP

func (r *Receipt) EncodeRLP(w io.Writer) error

EncodeRLP implements rlp.Encoder, and flattens the consensus fields of a receipt into an RLP stream. If no post state is present, byzantium fork is assumed.

func (*Receipt) MarshalBinary

func (r *Receipt) MarshalBinary() ([]byte, error)

MarshalBinary returns the consensus encoding of the receipt.

func (Receipt) MarshalJSON

func (r Receipt) MarshalJSON() ([]byte, error)

MarshalJSON marshals as JSON.

func (*Receipt) Size

func (r *Receipt) Size() common.StorageSize

Size returns the approximate memory used by all internal contents. It is used to approximate and limit the memory consumption of various caches.

func (*Receipt) UnmarshalBinary

func (r *Receipt) UnmarshalBinary(b []byte) error

UnmarshalBinary decodes the consensus encoding of receipts. It supports legacy RLP receipts and EIP-2718 typed receipts.

func (*Receipt) UnmarshalJSON

func (r *Receipt) UnmarshalJSON(input []byte) error

UnmarshalJSON unmarshals from JSON.

type ReceiptForStorage

type ReceiptForStorage Receipt

ReceiptForStorage is a wrapper around a Receipt with RLP serialization that omits the Bloom field and deserialization that re-computes it.

func (*ReceiptForStorage) DecodeRLP

func (r *ReceiptForStorage) DecodeRLP(s *rlp.Stream) error

DecodeRLP implements rlp.Decoder, and loads both consensus and implementation fields of a receipt from an RLP stream.

func (*ReceiptForStorage) EncodeRLP

func (r *ReceiptForStorage) EncodeRLP(_w io.Writer) error

EncodeRLP implements rlp.Encoder, and flattens all content fields of a receipt into an RLP stream.

type Receipts

type Receipts []*Receipt

Receipts implements DerivableList for receipts.

func (Receipts) DeriveFields

func (rs Receipts) DeriveFields(config *params.ChainConfig, hash common.Hash, number uint64, txs Transactions) error

DeriveFields fills the receipts with their computed fields based on consensus data and contextual infos like containing block and transactions.

func (Receipts) EncodeIndex

func (rs Receipts) EncodeIndex(i int, w *bytes.Buffer)

EncodeIndex encodes the i'th receipt to w.

func (Receipts) Len

func (rs Receipts) Len() int

Len returns the number of receipts in this list.

type Signer

type Signer interface {
	// Sender returns the sender address of the transaction.
	Sender(tx *Transaction) (common.Address, error)

	// SignatureValues returns the raw R, S, V values corresponding to the
	// given signature.
	SignatureValues(tx *Transaction, sig []byte) (r, s, v *big.Int, err error)
	ChainID() *big.Int

	// Hash returns 'signature hash', i.e. the transaction hash that is signed by the
	// private key. This hash does not uniquely identify the transaction.
	Hash(tx *Transaction) common.Hash

	// Equal returns true if the given signer is the same as the receiver.
	Equal(Signer) bool
}

Signer encapsulates transaction signature handling. The name of this type is slightly misleading because Signers don't actually sign, they're just for validating and processing of signatures.

Note that this interface is not a stable API and may change at any time to accommodate new protocol rules.

func LatestSigner

func LatestSigner(config *params.ChainConfig) Signer

LatestSigner returns the 'most permissive' Signer available for the given chain configuration. Specifically, this enables support of EIP-155 replay protection and EIP-2930 access list transactions when their respective forks are scheduled to occur at any block number in the chain config.

Use this in transaction-handling code where the current block number is unknown. If you have the current block number available, use MakeSigner instead.

func LatestSignerForChainID

func LatestSignerForChainID(chainID *big.Int) Signer

LatestSignerForChainID returns the 'most permissive' Signer available. Specifically, this enables support for EIP-155 replay protection and all implemented EIP-2718 transaction types if chainID is non-nil.

Use this in transaction-handling code where the current block number and fork configuration are unknown. If you have a ChainConfig, use LatestSigner instead. If you have a ChainConfig and know the current block number, use MakeSigner instead.

func MakeSigner

func MakeSigner(config *params.ChainConfig, blockNumber *big.Int) Signer

MakeSigner returns a Signer based on the given chain config and block number.

func NewEIP2930Signer

func NewEIP2930Signer(chainId *big.Int) Signer

NewEIP2930Signer returns a signer that accepts EIP-2930 access list transactions, EIP-155 replay protected transactions, and legacy Homestead transactions.

func NewLondonSigner

func NewLondonSigner(chainId *big.Int) Signer

NewLondonSigner returns a signer that accepts - EIP-1559 dynamic fee transactions - EIP-2930 access list transactions, - EIP-155 replay protected transactions, and - legacy Homestead transactions.

type StateAccount

type StateAccount struct {
	Nonce    uint64
	Balance  *big.Int
	Root     common.Hash // merkle root of the storage trie
	CodeHash []byte
}

StateAccount is the Ethereum consensus representation of accounts. These objects are stored in the main account trie.

func (*StateAccount) EncodeRLP

func (obj *StateAccount) EncodeRLP(_w io.Writer) error

type Transaction

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

Transaction is an Ethereum transaction.

func MustSignNewTx

func MustSignNewTx(prv *ecdsa.PrivateKey, s Signer, txdata TxData) *Transaction

MustSignNewTx creates a transaction and signs it. This panics if the transaction cannot be signed.

func NewContractCreation

func NewContractCreation(nonce uint64, amount *big.Int, gasLimit uint64, gasPrice *big.Int, data []byte) *Transaction

NewContractCreation creates an unsigned legacy transaction. Deprecated: use NewTx instead.

func NewTransaction

func NewTransaction(nonce uint64, to common.Address, amount *big.Int, gasLimit uint64, gasPrice *big.Int, data []byte) *Transaction

NewTransaction creates an unsigned legacy transaction. Deprecated: use NewTx instead.

func NewTx

func NewTx(inner TxData) *Transaction

NewTx creates a new transaction.

func SignNewTx

func SignNewTx(prv *ecdsa.PrivateKey, s Signer, txdata TxData) (*Transaction, error)

SignNewTx creates a transaction and signs it.

func SignTx

func SignTx(tx *Transaction, s Signer, prv *ecdsa.PrivateKey) (*Transaction, error)

SignTx signs the transaction using the given signer and private key.

func (*Transaction) AccessList

func (tx *Transaction) AccessList() AccessList

AccessList returns the access list of the transaction.

func (*Transaction) AsMessage

func (tx *Transaction) AsMessage(s Signer, baseFee *big.Int) (Message, error)

AsMessage returns the transaction as a core.Message.

func (*Transaction) ChainId

func (tx *Transaction) ChainId() *big.Int

ChainId returns the EIP155 chain ID of the transaction. The return value will always be non-nil. For legacy transactions which are not replay-protected, the return value is zero.

func (*Transaction) Cost

func (tx *Transaction) Cost() *big.Int

Cost returns gas * gasPrice + value.

func (*Transaction) Data

func (tx *Transaction) Data() []byte

Data returns the input data of the transaction.

func (*Transaction) DecodeRLP

func (tx *Transaction) DecodeRLP(s *rlp.Stream) error

DecodeRLP implements rlp.Decoder

func (*Transaction) EffectiveGasTip

func (tx *Transaction) EffectiveGasTip(baseFee *big.Int) (*big.Int, error)

EffectiveGasTip returns the effective miner gasTipCap for the given base fee. Note: if the effective gasTipCap is negative, this method returns both error the actual negative value, _and_ ErrGasFeeCapTooLow

func (*Transaction) EffectiveGasTipCmp

func (tx *Transaction) EffectiveGasTipCmp(other *Transaction, baseFee *big.Int) int

EffectiveGasTipCmp compares the effective gasTipCap of two transactions assuming the given base fee.

func (*Transaction) EffectiveGasTipIntCmp

func (tx *Transaction) EffectiveGasTipIntCmp(other *big.Int, baseFee *big.Int) int

EffectiveGasTipIntCmp compares the effective gasTipCap of a transaction to the given gasTipCap.

func (*Transaction) EffectiveGasTipValue

func (tx *Transaction) EffectiveGasTipValue(baseFee *big.Int) *big.Int

EffectiveGasTipValue is identical to EffectiveGasTip, but does not return an error in case the effective gasTipCap is negative

func (*Transaction) EncodeRLP

func (tx *Transaction) EncodeRLP(w io.Writer) error

EncodeRLP implements rlp.Encoder

func (*Transaction) Gas

func (tx *Transaction) Gas() uint64

Gas returns the gas limit of the transaction.

func (*Transaction) GasFeeCap

func (tx *Transaction) GasFeeCap() *big.Int

GasFeeCap returns the fee cap per gas of the transaction.

func (*Transaction) GasFeeCapCmp

func (tx *Transaction) GasFeeCapCmp(other *Transaction) int

GasFeeCapCmp compares the fee cap of two transactions.

func (*Transaction) GasFeeCapIntCmp

func (tx *Transaction) GasFeeCapIntCmp(other *big.Int) int

GasFeeCapIntCmp compares the fee cap of the transaction against the given fee cap.

func (*Transaction) GasPrice

func (tx *Transaction) GasPrice() *big.Int

GasPrice returns the gas price of the transaction.

func (*Transaction) GasTipCap

func (tx *Transaction) GasTipCap() *big.Int

GasTipCap returns the gasTipCap per gas of the transaction.

func (*Transaction) GasTipCapCmp

func (tx *Transaction) GasTipCapCmp(other *Transaction) int

GasTipCapCmp compares the gasTipCap of two transactions.

func (*Transaction) GasTipCapIntCmp

func (tx *Transaction) GasTipCapIntCmp(other *big.Int) int

GasTipCapIntCmp compares the gasTipCap of the transaction against the given gasTipCap.

func (*Transaction) Hash

func (tx *Transaction) Hash() common.Hash

Hash returns the transaction hash.

func (*Transaction) MarshalBinary

func (tx *Transaction) MarshalBinary() ([]byte, error)

MarshalBinary returns the canonical encoding of the transaction. For legacy transactions, it returns the RLP encoding. For EIP-2718 typed transactions, it returns the type and payload.

func (*Transaction) MarshalJSON

func (t *Transaction) MarshalJSON() ([]byte, error)

MarshalJSON marshals as JSON with a hash.

func (*Transaction) Nonce

func (tx *Transaction) Nonce() uint64

Nonce returns the sender account nonce of the transaction.

func (*Transaction) Protected

func (tx *Transaction) Protected() bool

Protected says whether the transaction is replay-protected.

func (*Transaction) RawSignatureValues

func (tx *Transaction) 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 (*Transaction) Size

func (tx *Transaction) Size() common.StorageSize

Size returns the true RLP encoded storage size of the transaction, either by encoding and returning it, or returning a previously cached value.

func (*Transaction) To

func (tx *Transaction) To() *common.Address

To returns the recipient address of the transaction. For contract-creation transactions, To returns nil.

func (*Transaction) Type

func (tx *Transaction) Type() uint8

Type returns the transaction type.

func (*Transaction) UnmarshalBinary

func (tx *Transaction) UnmarshalBinary(b []byte) error

UnmarshalBinary decodes the canonical encoding of transactions. It supports legacy RLP transactions and EIP2718 typed transactions.

func (*Transaction) UnmarshalJSON

func (t *Transaction) UnmarshalJSON(input []byte) error

UnmarshalJSON unmarshals from JSON.

func (*Transaction) Value

func (tx *Transaction) Value() *big.Int

Value returns the ether amount of the transaction.

func (*Transaction) WithSignature

func (tx *Transaction) WithSignature(signer Signer, sig []byte) (*Transaction, error)

WithSignature returns a new transaction with the given signature. This signature needs to be in the [R || S || V] format where V is 0 or 1.

type Transactions

type Transactions []*Transaction

Transactions implements DerivableList for transactions.

func TxDifference

func TxDifference(a, b Transactions) Transactions

TxDifference returns a new set which is the difference between a and b.

func (Transactions) EncodeIndex

func (s Transactions) EncodeIndex(i int, w *bytes.Buffer)

EncodeIndex encodes the i'th transaction to w. Note that this does not check for errors because we assume that *Transaction will only ever contain valid txs that were either constructed by decoding or via public API in this package.

func (Transactions) Len

func (s Transactions) Len() int

Len returns the length of s.

type TransactionsByPriceAndNonce

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

TransactionsByPriceAndNonce represents a set of transactions that can return transactions in a profit-maximizing sorted order, while supporting removing entire batches of transactions for non-executable accounts.

func NewTransactionsByPriceAndNonce

func NewTransactionsByPriceAndNonce(signer Signer, txs map[common.Address]Transactions, baseFee *big.Int) *TransactionsByPriceAndNonce

NewTransactionsByPriceAndNonce creates a transaction set that can retrieve price sorted transactions in a nonce-honouring way.

Note, the input map is reowned so the caller should not interact any more with if after providing it to the constructor.

func (*TransactionsByPriceAndNonce) Peek

Peek returns the next transaction by price.

func (*TransactionsByPriceAndNonce) Pop

func (t *TransactionsByPriceAndNonce) Pop()

Pop removes the best transaction, *not* replacing it with the next one from the same account. This should be used when a transaction cannot be executed and hence all subsequent ones should be discarded from the same account.

func (*TransactionsByPriceAndNonce) Shift

func (t *TransactionsByPriceAndNonce) Shift()

Shift replaces the current best head with the next one from the same account.

type TrieHasher

type TrieHasher interface {
	Reset()
	Update([]byte, []byte)
	Hash() common.Hash
}

TrieHasher is the tool used to calculate the hash of derivable list. This is internal, do not use.

type TxByNonce

type TxByNonce Transactions

TxByNonce implements the sort interface to allow sorting a list of transactions by their nonces. This is usually only useful for sorting transactions from a single account, otherwise a nonce comparison doesn't make much sense.

func (TxByNonce) Len

func (s TxByNonce) Len() int

func (TxByNonce) Less

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

func (TxByNonce) Swap

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

type TxByPriceAndTime

type TxByPriceAndTime []*TxWithMinerFee

TxByPriceAndTime implements both the sort and the heap interface, making it useful for all at once sorting as well as individually adding and removing elements.

func (TxByPriceAndTime) Len

func (s TxByPriceAndTime) Len() int

func (TxByPriceAndTime) Less

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

func (*TxByPriceAndTime) Pop

func (s *TxByPriceAndTime) Pop() interface{}

func (*TxByPriceAndTime) Push

func (s *TxByPriceAndTime) Push(x interface{})

func (TxByPriceAndTime) Swap

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

type TxData

type TxData interface {
	// contains filtered or unexported methods
}

TxData is the underlying data of a transaction.

This is implemented by DynamicFeeTx, LegacyTx and AccessListTx.

type TxWithMinerFee

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

TxWithMinerFee wraps a transaction with its gas price or effective miner gasTipCap

func NewTxWithMinerFee

func NewTxWithMinerFee(tx *Transaction, baseFee *big.Int) (*TxWithMinerFee, error)

NewTxWithMinerFee creates a wrapped transaction, calculating the effective miner gasTipCap if a base fee is provided. Returns error in case of a negative effective miner gasTipCap.

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