evmimpl

Documentation

Overview

Package evmimpl contains the implementation of the `evm` core contract.

The `evm` core contract is responsible for executing and storing:

• The github.com/iotaledger/wasp/packages/vm/core/evm/emulator.EVMEmulator.
• The ISC magic contract (see iscmagic.go).

See:

• The SetInitialState function, which initializes EVM on a newly created ISC chain.
• The evm.FuncSendTransaction entry point, which executes an Ethereum transaction.
• The evm.FuncCallContract entry point, which executes a view call.

Index

• Variables
• func MintBlock(evmPartition kv.KVStore, chainInfo *isc.ChainInfo, blockTimestamp time.Time)
• func Nonce(evmPartition kv.KVStoreReader, addr common.Address) uint64
• func SetInitialState(evmPartition kv.KVStore, evmChainID uint16)
• type StateAccess
  • func NewStateAccess(store kv.KVStoreReader) *StateAccess
  • func (sa *StateAccess) Nonce(addr common.Address) uint64

Variables

var (
	ErrPayingUnpayableMethod = coreerrors.Register("attempt to pay unpayable method %v")
)

var Processor = evm.Contract.Processor(nil,
	evm.FuncSendTransaction.WithHandler(restricted(applyTransaction)),
	evm.FuncCallContract.WithHandler(restricted(callContract)),

	evm.FuncRegisterERC20NativeToken.WithHandler(registerERC20NativeToken),
	evm.FuncRegisterERC20NativeTokenOnRemoteChain.WithHandler(restricted(registerERC20NativeTokenOnRemoteChain)),
	evm.FuncRegisterERC20ExternalNativeToken.WithHandler(registerERC20ExternalNativeToken),
	evm.FuncRegisterERC721NFTCollection.WithHandler(restricted(registerERC721NFTCollection)),

	evm.FuncNewL1Deposit.WithHandler(newL1Deposit),

	evm.FuncGetERC20ExternalNativeTokenAddress.WithHandler(viewERC20ExternalNativeTokenAddress),
	evm.FuncGetChainID.WithHandler(getChainID),
)

Functions

func MintBlock

func MintBlock(evmPartition kv.KVStore, chainInfo *isc.ChainInfo, blockTimestamp time.Time)

MintBlock "mints" the Ethereum block after all requests in the ISC block have been processed. IMPORTANT: Must only be called from the ISC VM

func Nonce

func Nonce(evmPartition kv.KVStoreReader, addr common.Address) uint64

func SetInitialState

func SetInitialState(evmPartition kv.KVStore, evmChainID uint16)

SetInitialState initializes the evm core contract and the Ethereum genesis block on a newly created ISC chain.

Types

type StateAccess

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

func NewStateAccess

func NewStateAccess(store kv.KVStoreReader) *StateAccess

func (*StateAccess) Nonce

func (sa *StateAccess) Nonce(addr common.Address) uint64