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converted vm

This commit is contained in:
obscuren 2015-03-16 18:42:18 +01:00
parent bfcd2cf132
commit 91b0b14845
6 changed files with 75 additions and 58 deletions
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45
common/types.go
View File

@ -1,8 +1,16 @@
package common
import "fmt"
import "math/big"
type Hash [32]byte
const (
hashLength = 32
addressLength = 20
)
type (
Hash [hashLength]byte
Address [addressLength]byte
)
var (
zeroHash Hash
@ -15,25 +23,19 @@ func BytesToHash(b []byte) Hash {
return h
}
func StringToHash(s string) Hash { return BytesToHash([]byte(s)) }
func BytesToAddress(b []byte) Address {
var a Address
a.SetBytes(b)
return a
}
func StringToAddress(s string) Address { return BytesToAddress([]byte(s)) }
func BigToHash(b *big.Int) Hash { return BytesToHash(b.Bytes()) }
// Don't use the default 'String' method in case we want to overwrite
// Get the string representation of the underlying hash
func (h Hash) Str() string {
return string(h[:])
}
func (h Hash) Str() string { return string(h[:]) }
func (h Hash) Bytes() []byte { return h[:] }
func (h Hash) Big() *big.Int { return Bytes2Big(h[:]) }
// Sets the hash to the value of b. If b is larger than len(h) it will panic
func (h *Hash) SetBytes(b []byte) {
if len(b) > len(h) {
panic(fmt.Sprintf("unable to set bytes. too big = %d", len(b)))
b = b[len(b)-hashLength:]
}
// reverse loop
@ -52,17 +54,24 @@ func (h *Hash) Set(other Hash) {
}
}
type Address [20]byte
/////////// Address
func BytesToAddress(b []byte) Address {
var a Address
a.SetBytes(b)
return a
}
func StringToAddress(s string) Address { return BytesToAddress([]byte(s)) }
func BigToAddress(b *big.Int) Address { return BytesToAddress(b.Bytes()) }
// Get the string representation of the underlying address
func (a Address) Str() string {
return string(a[:])
}
func (a Address) Str() string { return string(a[:]) }
func (a Address) Bytes() []byte { return a[:] }
func (a Address) Big() *big.Int { return Bytes2Big(a[:]) }
// Sets the address to the value of b. If b is larger than len(a) it will panic
func (a *Address) SetBytes(b []byte) {
if len(b) > len(a) {
panic(fmt.Sprintf("unable to set bytes. too big = %d", len(b)))
b = b[len(b)-addressLength:]
}
// reverse loop

5
core/types/block_test.go
View File

@ -1,13 +1,13 @@
package types
import (
"fmt"
"math/big"
"testing"
"github.com/ethereum/go-ethereum/common"
)
// XXX Tests doesn't really do anything. This tests exists while working on the fixed size conversions
func TestConversion(t *testing.T) {
var (
parent common.Hash
@ -15,6 +15,5 @@ func TestConversion(t *testing.T) {
hash common.Hash
)
block := NewBlock(parent, coinbase, hash, big.NewInt(0), 0, "")
fmt.Println(block)
NewBlock(parent, coinbase, hash, big.NewInt(0), 0, "")
}

14
state/log.go
View File

@ -9,7 +9,7 @@ import (
type Log interface {
common.RlpEncodable
Address() []byte
Address() common.Address
Topics() [][]byte
Data() []byte
@ -17,17 +17,17 @@ type Log interface {
}
type StateLog struct {
address []byte
address common.Address
topics [][]byte
data []byte
number uint64
}
func NewLog(address []byte, topics [][]byte, data []byte, number uint64) *StateLog {
func NewLog(address common.Address, topics [][]byte, data []byte, number uint64) *StateLog {
return &StateLog{address, topics, data, number}
}
func (self *StateLog) Address() []byte {
func (self *StateLog) Address() common.Address {
return self.address
}
@ -43,7 +43,12 @@ func (self *StateLog) Number() uint64 {
return self.number
}
/*
func NewLogFromValue(decoder *common.Value) *StateLog {
var extlog struct {
}
log := &StateLog{
address: decoder.Get(0).Bytes(),
data: decoder.Get(2).Bytes(),
@ -56,6 +61,7 @@ func NewLogFromValue(decoder *common.Value) *StateLog {
return log
}
*/
func (self *StateLog) RlpData() interface{} {
return []interface{}{self.address, common.ByteSliceToInterface(self.topics), self.data}

8
vm/context.go
View File

@ -9,7 +9,7 @@ import (
type ContextRef interface {
ReturnGas(*big.Int, *big.Int)
Address() []byte
Address() common.Address
SetCode([]byte)
}
@ -18,7 +18,7 @@ type Context struct {
self ContextRef
Code []byte
CodeAddr []byte
CodeAddr common.Address
value, Gas, UsedGas, Price *big.Int
@ -100,7 +100,7 @@ func (c *Context) ReturnGas(gas, price *big.Int) {
/*
* Set / Get
*/
func (c *Context) Address() []byte {
func (c *Context) Address() common.Address {
return c.self.Address()
}
@ -108,7 +108,7 @@ func (self *Context) SetCode(code []byte) {
self.Code = code
}
func (self *Context) SetCallCode(addr, code []byte) {
func (self *Context) SetCallCode(addr common.Address, code []byte) {
self.Code = code
self.CodeAddr = addr
}

12
vm/environment.go
View File

@ -12,7 +12,7 @@ import (
type Environment interface {
State() *state.StateDB
Origin() []byte
Origin() common.Address
BlockNumber() *big.Int
GetHash(n uint64) []byte
Coinbase() []byte
@ -27,9 +27,9 @@ type Environment interface {
Depth() int
SetDepth(i int)
Call(me ContextRef, addr, data []byte, gas, price, value *big.Int) ([]byte, error)
CallCode(me ContextRef, addr, data []byte, gas, price, value *big.Int) ([]byte, error)
Create(me ContextRef, addr, data []byte, gas, price, value *big.Int) ([]byte, error, ContextRef)
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 {
@ -53,13 +53,13 @@ func Transfer(from, to Account, amount *big.Int) error {
}
type Log struct {
address []byte
address common.Address
topics [][]byte
data []byte
log uint64
}
func (self *Log) Address() []byte {
func (self *Log) Address() common.Address {
return self.address
}

49
vm/vm.go
View File

@ -4,8 +4,8 @@ import (
"fmt"
"math/big"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/state"
)
@ -44,7 +44,7 @@ func (self *Vm) Run(context *Context, callData []byte) (ret []byte, err error) {
price = context.Price
)
self.Printf("(%d) (%x) %x (code=%d) gas: %v (d) %x", self.env.Depth(), caller.Address()[:4], context.Address(), len(code), context.Gas, callData).Endl()
self.Printf("(%d) (%x) %x (code=%d) gas: %v (d) %x", self.env.Depth(), caller.Address().Bytes()[:4], context.Address(), len(code), context.Gas, callData).Endl()
if self.Recoverable {
// Recover from any require exception
@ -62,7 +62,7 @@ func (self *Vm) Run(context *Context, callData []byte) (ret []byte, err error) {
}()
}
if p := Precompiled[string(context.CodeAddr)]; p != nil {
if p := Precompiled[context.CodeAddr.Str()]; p != nil {
return self.RunPrecompiled(p, callData, context)
}
@ -394,11 +394,11 @@ func (self *Vm) Run(context *Context, callData []byte) (ret []byte, err error) {
self.Printf(" => (%v) %x", size, data)
// 0x30 range
case ADDRESS:
stack.push(common.BigD(context.Address()))
stack.push(common.Bytes2Big(context.Address().Bytes()))
self.Printf(" => %x", context.Address())
case BALANCE:
addr := stack.pop().Bytes()
addr := common.BigToAddress(stack.pop())
balance := statedb.GetBalance(addr)
stack.push(balance)
@ -407,12 +407,12 @@ func (self *Vm) Run(context *Context, callData []byte) (ret []byte, err error) {
case ORIGIN:
origin := self.env.Origin()
stack.push(common.BigD(origin))
stack.push(origin.Big())
self.Printf(" => %x", origin)
case CALLER:
caller := context.caller.Address()
stack.push(common.BigD(caller))
stack.push(common.Bytes2Big(caller.Bytes()))
self.Printf(" => %x", caller)
case CALLVALUE:
@ -464,7 +464,7 @@ func (self *Vm) Run(context *Context, callData []byte) (ret []byte, err error) {
case CODESIZE, EXTCODESIZE:
var code []byte
if op == EXTCODESIZE {
addr := stack.pop().Bytes()
addr := common.BigToAddress(stack.pop())
code = statedb.GetCode(addr)
} else {
@ -478,7 +478,8 @@ func (self *Vm) Run(context *Context, callData []byte) (ret []byte, err error) {
case CODECOPY, EXTCODECOPY:
var code []byte
if op == EXTCODECOPY {
code = statedb.GetCode(stack.pop().Bytes())
addr := common.BigToAddress(stack.pop())
code = statedb.GetCode(addr)
} else {
code = context.Code
}
@ -593,16 +594,18 @@ func (self *Vm) Run(context *Context, callData []byte) (ret []byte, err error) {
self.Printf(" => [%v] 0x%x", off, val)
case SLOAD:
loc := stack.pop()
val := common.BigD(statedb.GetState(context.Address(), loc.Bytes()))
loc := common.BigToHash(stack.pop())
val := common.Bytes2Big(statedb.GetState(context.Address(), loc))
stack.push(val)
self.Printf(" {0x%x : 0x%x}", loc.Bytes(), val.Bytes())
self.Printf(" {0x%x : 0x%x}", loc, val.Bytes())
case SSTORE:
loc, val := stack.pop(), stack.pop()
statedb.SetState(context.Address(), loc.Bytes(), val)
loc := common.BigToHash(stack.pop())
val := stack.pop()
self.Printf(" {0x%x : 0x%x}", loc.Bytes(), val.Bytes())
statedb.SetState(context.Address(), loc, val)
self.Printf(" {0x%x : 0x%x}", loc, val.Bytes())
case JUMP:
jump(pc, stack.pop())
@ -635,12 +638,12 @@ func (self *Vm) Run(context *Context, callData []byte) (ret []byte, err error) {
offset, size = stack.pop(), stack.pop()
input = mem.Get(offset.Int64(), size.Int64())
gas = new(big.Int).Set(context.Gas)
addr []byte
addr common.Address
)
self.Endl()
context.UseGas(context.Gas)
ret, suberr, ref := self.env.Create(context, nil, input, gas, price, value)
ret, suberr, ref := self.env.Create(context, input, gas, price, value)
if suberr != nil {
stack.push(common.BigFalse)
@ -655,7 +658,7 @@ func (self *Vm) Run(context *Context, callData []byte) (ret []byte, err error) {
}
addr = ref.Address()
stack.push(common.BigD(addr))
stack.push(addr.Big())
}
@ -669,7 +672,7 @@ func (self *Vm) Run(context *Context, callData []byte) (ret []byte, err error) {
// pop return size and offset
retOffset, retSize := stack.pop(), stack.pop()
address := common.Address(addr.Bytes())
address := common.BigToAddress(addr)
self.Printf(" => %x", address).Endl()
// Get the arguments from the memory
@ -707,10 +710,10 @@ func (self *Vm) Run(context *Context, callData []byte) (ret []byte, err error) {
return context.Return(ret), nil
case SUICIDE:
receiver := statedb.GetOrNewStateObject(stack.pop().Bytes())
receiver := statedb.GetOrNewStateObject(common.BigToAddress(stack.pop()))
balance := statedb.GetBalance(context.Address())
self.Printf(" => (%x) %v", receiver.Address()[:4], balance)
self.Printf(" => (%x) %v", receiver.Address().Bytes()[:4], balance)
receiver.AddBalance(balance)
@ -770,7 +773,7 @@ func (self *Vm) calculateGasAndSize(context *Context, caller ContextRef, op OpCo
var g *big.Int
y, x := stack.data[stack.len()-2], stack.data[stack.len()-1]
val := statedb.GetState(context.Address(), x.Bytes())
val := statedb.GetState(context.Address(), common.BigToHash(x))
if len(val) == 0 && len(y.Bytes()) > 0 {
// 0 => non 0
g = GasStorageAdd
@ -822,7 +825,7 @@ func (self *Vm) calculateGasAndSize(context *Context, caller ContextRef, op OpCo
gas.Add(gas, stack.data[stack.len()-1])
if op == CALL {
if self.env.State().GetStateObject(stack.data[stack.len()-2].Bytes()) == nil {
if self.env.State().GetStateObject(common.BigToAddress(stack.data[stack.len()-2])) == nil {
gas.Add(gas, GasCallNewAccount)
}
}