emulator

package
v0.3.0 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Sep 9, 2022 License: Apache-2.0, BSD-2-Clause Imports: 21 Imported by: 1

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func Init 

func Init(store kv.KVStore, chainID uint16, blockKeepAmount int32, gasLimit, timestamp uint64, alloc core.GenesisAlloc, getBalance BalanceFunc)

Init initializes the EVM state with the provided genesis allocation parameters

Types

type BalanceFunc 

type BalanceFunc func(addr common.Address) *big.Int

type BlockchainDB 

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

BlockchainDB contains logic for storing a fake blockchain (more like a list of blocks), intended for satisfying EVM tools that depend on the concept of a block.

func NewBlockchainDB 

func NewBlockchainDB(store kv.KVStore) *BlockchainDB

func (*BlockchainDB) AddTransaction 

func (bc *BlockchainDB) AddTransaction(tx *types.Transaction, receipt *types.Receipt)

func (*BlockchainDB) GetBlockByHash 

func (bc *BlockchainDB) GetBlockByHash(hash common.Hash) *types.Block

func (*BlockchainDB) GetBlockByNumber 

func (bc *BlockchainDB) GetBlockByNumber(blockNumber uint64) *types.Block

func (*BlockchainDB) GetBlockHashByBlockNumber 

func (bc *BlockchainDB) GetBlockHashByBlockNumber(blockNumber uint64) common.Hash

func (*BlockchainDB) GetBlockIndexByTxHash 

func (bc *BlockchainDB) GetBlockIndexByTxHash(txHash common.Hash) uint32

func (*BlockchainDB) GetBlockNumberByBlockHash 

func (bc *BlockchainDB) GetBlockNumberByBlockHash(hash common.Hash) (uint64, bool)

func (*BlockchainDB) GetBlockNumberByTxHash 

func (bc *BlockchainDB) GetBlockNumberByTxHash(txHash common.Hash) (uint64, bool)

func (*BlockchainDB) GetChainID 

func (bc *BlockchainDB) GetChainID() uint16

func (*BlockchainDB) GetCurrentBlock 

func (bc *BlockchainDB) GetCurrentBlock() *types.Block

func (*BlockchainDB) GetGasLimit 

func (bc *BlockchainDB) GetGasLimit() uint64

func (*BlockchainDB) GetHeaderByBlockNumber 

func (bc *BlockchainDB) GetHeaderByBlockNumber(blockNumber uint64) *types.Header

func (*BlockchainDB) GetHeaderByHash 

func (bc *BlockchainDB) GetHeaderByHash(hash common.Hash) *types.Header

func (*BlockchainDB) GetLatestPendingReceipt 

func (bc *BlockchainDB) GetLatestPendingReceipt() *types.Receipt

func (*BlockchainDB) GetNumber 

func (bc *BlockchainDB) GetNumber() uint64

func (*BlockchainDB) GetPendingBlockNumber 

func (bc *BlockchainDB) GetPendingBlockNumber() uint64

func (*BlockchainDB) GetPendingHeader 

func (bc *BlockchainDB) GetPendingHeader() *types.Header

func (*BlockchainDB) GetReceiptByBlockNumberAndIndex 

func (bc *BlockchainDB) GetReceiptByBlockNumberAndIndex(blockNumber uint64, i uint32) *types.Receipt

func (*BlockchainDB) GetReceiptByTxHash 

func (bc *BlockchainDB) GetReceiptByTxHash(txHash common.Hash) *types.Receipt

func (*BlockchainDB) GetReceiptsByBlockNumber 

func (bc *BlockchainDB) GetReceiptsByBlockNumber(blockNumber uint64) []*types.Receipt

func (*BlockchainDB) GetTimestampByBlockNumber 

func (bc *BlockchainDB) GetTimestampByBlockNumber(blockNumber uint64) uint64

func (*BlockchainDB) GetTransactionByBlockNumberAndIndex 

func (bc *BlockchainDB) GetTransactionByBlockNumberAndIndex(blockNumber uint64, i uint32) *types.Transaction

func (*BlockchainDB) GetTransactionByHash 

func (bc *BlockchainDB) GetTransactionByHash(txHash common.Hash) *types.Transaction

func (*BlockchainDB) GetTransactionsByBlockNumber 

func (bc *BlockchainDB) GetTransactionsByBlockNumber(blockNumber uint64) []*types.Transaction

func (*BlockchainDB) Init 

func (bc *BlockchainDB) Init(chainID uint16, keepAmount int32, gasLimit, timestamp uint64)

func (*BlockchainDB) Initialized 

func (bc *BlockchainDB) Initialized() bool

func (*BlockchainDB) MintBlock 

func (bc *BlockchainDB) MintBlock(timestamp uint64)

func (*BlockchainDB) SetChainID 

func (bc *BlockchainDB) SetChainID(chainID uint16)

func (*BlockchainDB) SetGasLimit 

func (bc *BlockchainDB) SetGasLimit(gas uint64)

func (*BlockchainDB) SetKeepAmount 

func (bc *BlockchainDB) SetKeepAmount(keepAmount int32)

type BufferedStateDB 

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

BufferedStateDB is a wrapper for StateDB that writes all mutations into an in-memory buffer, leaving the original state unmodified until the mutations are applied manually with Commit().

func NewBufferedStateDB 

func NewBufferedStateDB(base *StateDB) *BufferedStateDB

func (*BufferedStateDB) Commit 

func (b *BufferedStateDB) Commit()

func (*BufferedStateDB) StateDB 

func (b *BufferedStateDB) StateDB() *StateDB

type EVMEmulator 

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

func NewEVMEmulator 

func NewEVMEmulator(store kv.KVStore, timestamp uint64, magicContract vm.ISCContract, getBalance BalanceFunc) *EVMEmulator

func (*EVMEmulator) BlockchainDB 

func (e *EVMEmulator) BlockchainDB() *BlockchainDB

func (*EVMEmulator) CallContract 

func (e *EVMEmulator) CallContract(call ethereum.CallMsg, gasBurnEnable func(bool)) (*core.ExecutionResult, error)

CallContract executes a contract call, without committing changes to the state

func (*EVMEmulator) ChainContext 

func (e *EVMEmulator) ChainContext() core.ChainContext

func (*EVMEmulator) FilterLogs 

func (e *EVMEmulator) FilterLogs(query *ethereum.FilterQuery) []*types.Log

FilterLogs executes a log filter operation, blocking during execution and returning all the results in one batch.

func (*EVMEmulator) GasLimit 

func (e *EVMEmulator) GasLimit() uint64

func (*EVMEmulator) MintBlock 

func (e *EVMEmulator) MintBlock()

func (*EVMEmulator) SendTransaction 

func (e *EVMEmulator) SendTransaction(tx *types.Transaction, gasBurnEnable func(bool)) (*types.Receipt, *core.ExecutionResult, error)

func (*EVMEmulator) Signer 

func (e *EVMEmulator) Signer() types.Signer

func (*EVMEmulator) StateDB 

func (e *EVMEmulator) StateDB() *StateDB

type StateDB 

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

StateDB implements vm.StateDB with a kv.KVStore as backend. The Ethereum account balance is tied to the L1 balance, and immutable from EVM. (Instead, funds are supposed to be manipulated via the ISC sandbox).

func NewStateDB 

func NewStateDB(store kv.KVStore, getBalance BalanceFunc) *StateDB

func (*StateDB) AddAddressToAccessList 

func (s *StateDB) AddAddressToAccessList(addr common.Address)

AddAddressToAccessList adds the given address to the access list. This operation is safe to perform even if the feature/fork is not active yet

func (*StateDB) AddBalance 

func (s *StateDB) AddBalance(addr common.Address, amount *big.Int)

func (*StateDB) AddLog 

func (s *StateDB) AddLog(log *types.Log)

func (*StateDB) AddPreimage 

func (s *StateDB) AddPreimage(common.Hash, []byte)

func (*StateDB) AddRefund 

func (s *StateDB) AddRefund(n uint64)

func (*StateDB) AddSlotToAccessList 

func (s *StateDB) AddSlotToAccessList(addr common.Address, slot common.Hash)

AddSlotToAccessList adds the given (address,slot) to the access list. This operation is safe to perform even if the feature/fork is not active yet

func (*StateDB) AddressInAccessList 

func (s *StateDB) AddressInAccessList(addr common.Address) bool

func (*StateDB) Buffered 

func (s *StateDB) Buffered() *BufferedStateDB

func (*StateDB) CreateAccount 

func (s *StateDB) CreateAccount(addr common.Address)

func (*StateDB) Empty 

func (s *StateDB) Empty(addr common.Address) bool

Empty returns whether the given account is empty. Empty is defined according to EIP161 (balance = nonce = code = 0).

func (*StateDB) Exist 

func (s *StateDB) Exist(addr common.Address) bool

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

func (*StateDB) ForEachStorage 

func (s *StateDB) ForEachStorage(common.Address, func(common.Hash, common.Hash) bool) error

func (*StateDB) GetBalance 

func (s *StateDB) GetBalance(addr common.Address) *big.Int

func (*StateDB) GetCode 

func (s *StateDB) GetCode(addr common.Address) []byte

func (*StateDB) GetCodeHash 

func (s *StateDB) GetCodeHash(addr common.Address) common.Hash

func (*StateDB) GetCodeSize 

func (s *StateDB) GetCodeSize(addr common.Address) int

func (*StateDB) GetCommittedState 

func (s *StateDB) GetCommittedState(addr common.Address, key common.Hash) common.Hash

func (*StateDB) GetLogs 

func (s *StateDB) GetLogs(hash common.Hash) []*types.Log

func (*StateDB) GetNonce 

func (s *StateDB) GetNonce(addr common.Address) uint64

func (*StateDB) GetRefund 

func (s *StateDB) GetRefund() uint64

func (*StateDB) GetState 

func (s *StateDB) GetState(addr common.Address, key common.Hash) common.Hash

func (*StateDB) HasSuicided 

func (s *StateDB) HasSuicided(common.Address) bool

func (*StateDB) PrepareAccessList 

func (s *StateDB) PrepareAccessList(sender common.Address, dest *common.Address, precompiles []common.Address, txAccesses types.AccessList)

func (*StateDB) RevertToSnapshot 

func (s *StateDB) RevertToSnapshot(int)

func (*StateDB) SetCode 

func (s *StateDB) SetCode(addr common.Address, code []byte)

func (*StateDB) SetNonce 

func (s *StateDB) SetNonce(addr common.Address, n uint64)

func (*StateDB) SetState 

func (s *StateDB) SetState(addr common.Address, key, value common.Hash)

func (*StateDB) SlotInAccessList 

func (s *StateDB) SlotInAccessList(addr common.Address, slot common.Hash) (addressOk, slotOk bool)

func (*StateDB) Snapshot 

func (s *StateDB) Snapshot() int

func (*StateDB) SubBalance 

func (s *StateDB) SubBalance(addr common.Address, amount *big.Int)

func (*StateDB) SubRefund 

func (s *StateDB) SubRefund(n uint64)

func (*StateDB) Suicide 

func (s *StateDB) Suicide(addr common.Address) bool

Source Files

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