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
}

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
	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
}

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

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
}