77 lines
1.5 KiB
Go
77 lines
1.5 KiB
Go
package vm
|
|
|
|
import (
|
|
"errors"
|
|
"math/big"
|
|
|
|
"github.com/ethereum/go-ethereum/ethutil"
|
|
"github.com/ethereum/go-ethereum/state"
|
|
)
|
|
|
|
type Environment interface {
|
|
State() *state.StateDB
|
|
|
|
Origin() []byte
|
|
BlockNumber() *big.Int
|
|
PrevHash() []byte
|
|
Coinbase() []byte
|
|
Time() int64
|
|
Difficulty() *big.Int
|
|
BlockHash() []byte
|
|
GasLimit() *big.Int
|
|
Transfer(from, to Account, amount *big.Int) error
|
|
AddLog(state.Log)
|
|
|
|
Depth() int
|
|
SetDepth(i int)
|
|
|
|
Call(me ClosureRef, addr, data []byte, gas, price, value *big.Int) ([]byte, error)
|
|
CallCode(me ClosureRef, addr, data []byte, gas, price, value *big.Int) ([]byte, error)
|
|
Create(me ClosureRef, addr, data []byte, gas, price, value *big.Int) ([]byte, error, ClosureRef)
|
|
}
|
|
|
|
type Object interface {
|
|
GetStorage(key *big.Int) *ethutil.Value
|
|
SetStorage(key *big.Int, value *ethutil.Value)
|
|
}
|
|
|
|
type Account interface {
|
|
SubBalance(amount *big.Int)
|
|
AddBalance(amount *big.Int)
|
|
Balance() *big.Int
|
|
}
|
|
|
|
// generic transfer method
|
|
func Transfer(from, to Account, amount *big.Int) error {
|
|
if from.Balance().Cmp(amount) < 0 {
|
|
return errors.New("Insufficient balance in account")
|
|
}
|
|
|
|
from.SubBalance(amount)
|
|
to.AddBalance(amount)
|
|
|
|
return nil
|
|
}
|
|
|
|
type Log struct {
|
|
address []byte
|
|
topics [][]byte
|
|
data []byte
|
|
}
|
|
|
|
func (self *Log) Address() []byte {
|
|
return self.address
|
|
}
|
|
|
|
func (self *Log) Topics() [][]byte {
|
|
return self.topics
|
|
}
|
|
|
|
func (self *Log) Data() []byte {
|
|
return self.data
|
|
}
|
|
|
|
func (self *Log) RlpData() interface{} {
|
|
return []interface{}{self.address, ethutil.ByteSliceToInterface(self.topics), self.data}
|
|
}
|