arwen

Documentation

Index

• Constants
• func AddHostContext(ctx VMContext) int
• func ConvertReturnValue(wasmValue wasmer.Value) *big.Int
• func LoadBytes(from *wasmer.Memory, offset int32, length int32) []byte
• func RemoveHostContext(idx int)
• func StoreBytes(to *wasmer.Memory, offset int32, data []byte) error
• type BigIntContext
  • func GetBigIntContext(pointer unsafe.Pointer) BigIntContext
• type CryptoContext
  • func GetCryptoContext(pointer unsafe.Pointer) CryptoContext
• type EthContext
  • func GetEthContext(pointer unsafe.Pointer) EthContext
• type HostContext
  • func GetErdContext(pointer unsafe.Pointer) HostContext
• type VMContext

Constants

const AddressLen = 32

const BalanceLen = 32

const HashLen = 32

Functions

func AddHostContext

func AddHostContext(ctx VMContext) int

func ConvertReturnValue

func ConvertReturnValue(wasmValue wasmer.Value) *big.Int

func LoadBytes

func LoadBytes(from *wasmer.Memory, offset int32, length int32) []byte

func RemoveHostContext

func RemoveHostContext(idx int)

func StoreBytes

func StoreBytes(to *wasmer.Memory, offset int32, data []byte) error

Types

type BigIntContext

type BigIntContext interface {
	GasSchedule() *config.GasCost
	UseGas(gas uint64)
	GasLeft() uint64
	Put(value int64) int32
	GetOne(id int32) *big.Int
	GetTwo(id1, id2 int32) (*big.Int, *big.Int)
	GetThree(id1, id2, id3 int32) (*big.Int, *big.Int, *big.Int)
	Arguments() []*big.Int
	GetStorage(addr []byte, key []byte) []byte
	SetStorage(addr []byte, key []byte, value []byte) int32
	GetVMInput() vmcommon.VMInput
	GetBalance(addr []byte) []byte
	GetSCAddress() []byte
	Finish(data []byte)
}

func GetBigIntContext

func GetBigIntContext(pointer unsafe.Pointer) BigIntContext

type CryptoContext

type CryptoContext interface {
	GasSchedule() *config.GasCost
	UseGas(gas uint64)
	CryptoHooks() vmcommon.CryptoHook
}

func GetCryptoContext

func GetCryptoContext(pointer unsafe.Pointer) CryptoContext

type EthContext

type EthContext interface {
	GasSchedule() *config.GasCost
	GetSCAddress() []byte
	CallData() []byte
	UseGas(gas uint64)
	GasLeft() uint64
	BlockGasLimit() uint64
	GetBalance(addr []byte) []byte
	BlockHash(nonce int64) []byte
	GetVMInput() vmcommon.VMInput
	Transfer(destination []byte, sender []byte, value *big.Int, input []byte, gas int64) (gasLeft int64, err error)
	GetStorage(addr []byte, key []byte) []byte
	SetStorage(addr []byte, key []byte, value []byte) int32
	GetCode(addr []byte) []byte
	GetCodeSize(addr []byte) int32
	SignalUserError()
	Finish(data []byte)
	WriteLog(addr []byte, topics [][]byte, data []byte)
	SelfDestruct(addr []byte, beneficiary []byte)
}

func GetEthContext

func GetEthContext(pointer unsafe.Pointer) EthContext

type HostContext

type HostContext interface {
	GasSchedule() *config.GasCost
	UseGas(gas uint64)
	GasLeft() uint64
	Function() string
	Arguments() []*big.Int
	GetStorage(addr []byte, key []byte) []byte
	SetStorage(addr []byte, key []byte, value []byte) int32
	GetBalance(addr []byte) []byte
	BlockHash(nonce int64) []byte
	GetVMInput() vmcommon.VMInput
	GetSCAddress() []byte
	WriteLog(addr []byte, topics [][]byte, data []byte)
	Transfer(destination []byte, sender []byte, value *big.Int, input []byte, gas int64) (gasLeft int64, err error)
	Finish(data []byte)
	BlockChainHook() vmcommon.BlockchainHook
	SignalUserError()
}

func GetErdContext

func GetErdContext(pointer unsafe.Pointer) HostContext

type VMContext

type VMContext interface {
	EthContext() EthContext
	CoreContext() HostContext
	BigInContext() BigIntContext
	CryptoContext() CryptoContext
}