runtime

type CallType int

type Contract struct {
	Code        []byte
	Type        CallType
	CodeAddress types.Address
	Address     types.Address
	Origin      types.Address
	Caller      types.Address
	Depth       int
	Value       *big.Int
	Input       []byte
	Gas         uint64
	Static      bool
}

type ExecutionResult struct {
	ReturnValue []byte        // Returned data from the runtime (function result or data supplied with revert opcode)
	GasLeft     uint64        // Total gas left as result of execution
	GasUsed     uint64        // Total gas used as result of execution
	Err         error         // Any error encountered during the execution, listed below
	Address     types.Address // Contract address
}

type Host interface {
	AccountExists(addr types.Address) bool
	GetStorage(addr types.Address, key types.Hash) types.Hash
	SetStorage(addr types.Address, key types.Hash, value types.Hash, config *chain.ForksInTime) StorageStatus
	SetState(addr types.Address, key types.Hash, value types.Hash)
	SetNonPayable(nonPayable bool)
	GetBalance(addr types.Address) *big.Int
	GetCodeSize(addr types.Address) int
	GetCodeHash(addr types.Address) types.Hash
	GetCode(addr types.Address) []byte
	Selfdestruct(addr types.Address, beneficiary types.Address)
	GetTxContext() TxContext
	GetBlockHash(number int64) types.Hash
	EmitLog(addr types.Address, topics []types.Hash, data []byte)
	Callx(*Contract, Host) *ExecutionResult
	Empty(addr types.Address) bool
	GetNonce(addr types.Address) uint64
	Transfer(from types.Address, to types.Address, amount *big.Int) error
	GetTracer() VMTracer
	GetRefund() uint64
}

type Runtime interface {
	Run(c *Contract, host Host, config *chain.ForksInTime) *ExecutionResult
	CanRun(c *Contract, host Host, config *chain.ForksInTime) bool
	Name() string
}

type StackOverflowError struct {
	StackLen int
	Limit    int
}

type StackUnderflowError struct {
	StackLen int
	Required int
}

type StorageStatus int

type TxContext struct {
	GasPrice     types.Hash
	Origin       types.Address
	Coinbase     types.Address
	Number       int64
	Timestamp    int64
	GasLimit     int64
	ChainID      int64
	Difficulty   types.Hash
	Tracer       tracer.Tracer
	NonPayable   bool
	BaseFee      *big.Int
	BurnContract types.Address
}

type VMTracer interface {
	CaptureState(
		memory []byte,
		stack []*big.Int,
		opCode int,
		contractAddress types.Address,
		sp int,
		host tracer.RuntimeHost,
		state tracer.VMState,
	)
	ExecuteState(
		contractAddress types.Address,
		ip uint64,
		opcode string,
		availableGas uint64,
		cost uint64,
		lastReturnData []byte,
		depth int,
		err error,
		host tracer.RuntimeHost,
	)
}