85 lines
1.7 KiB
Go
85 lines
1.7 KiB
Go
package vm
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"math/big"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/state"
|
|
)
|
|
|
|
type Environment interface {
|
|
State() *state.StateDB
|
|
|
|
Origin() common.Address
|
|
BlockNumber() *big.Int
|
|
GetHash(n uint64) []byte
|
|
Coinbase() []byte
|
|
Time() int64
|
|
Difficulty() *big.Int
|
|
GasLimit() *big.Int
|
|
Transfer(from, to Account, amount *big.Int) error
|
|
AddLog(state.Log)
|
|
|
|
VmType() Type
|
|
|
|
Depth() int
|
|
SetDepth(i int)
|
|
|
|
Call(me ContextRef, addr common.Address, data []byte, gas, price, value *big.Int) ([]byte, error)
|
|
CallCode(me ContextRef, addr common.Address, data []byte, gas, price, value *big.Int) ([]byte, error)
|
|
Create(me ContextRef, data []byte, gas, price, value *big.Int) ([]byte, error, ContextRef)
|
|
}
|
|
|
|
type Account interface {
|
|
SubBalance(amount *big.Int)
|
|
AddBalance(amount *big.Int)
|
|
Balance() *big.Int
|
|
Address() []byte
|
|
}
|
|
|
|
// generic transfer method
|
|
func Transfer(from, to Account, amount *big.Int) error {
|
|
//fmt.Printf(":::%x::: %v < %v\n", from.Address(), from.Balance(), amount)
|
|
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 common.Address
|
|
topics [][]byte
|
|
data []byte
|
|
log uint64
|
|
}
|
|
|
|
func (self *Log) Address() common.Address {
|
|
return self.address
|
|
}
|
|
|
|
func (self *Log) Topics() [][]byte {
|
|
return self.topics
|
|
}
|
|
|
|
func (self *Log) Data() []byte {
|
|
return self.data
|
|
}
|
|
|
|
func (self *Log) Number() uint64 {
|
|
return self.log
|
|
}
|
|
|
|
func (self *Log) RlpData() interface{} {
|
|
return []interface{}{self.address, common.ByteSliceToInterface(self.topics), self.data}
|
|
}
|
|
|
|
func (self *Log) String() string {
|
|
return fmt.Sprintf("[A=%x T=%x D=%x]", self.address, self.topics, self.data)
|
|
}
|