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 RegisterERC721NFTCollectionByNFTId(store kv.KVStore, nft *isc.NFT)
• func SetInitialState(evmPartition kv.KVStore, evmChainID uint16, createBaseTokenMagicWrap bool)
• 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 RegisterERC721NFTCollectionByNFTId

func RegisterERC721NFTCollectionByNFTId(store kv.KVStore, nft *isc.NFT)

func SetInitialState

func SetInitialState(evmPartition kv.KVStore, evmChainID uint16, createBaseTokenMagicWrap bool)

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