aboutsummaryrefslogtreecommitdiffstats
path: root/ethchain/state_transition.go
diff options
context:
space:
mode:
Diffstat (limited to 'ethchain/state_transition.go')
-rw-r--r--ethchain/state_transition.go95
1 files changed, 63 insertions, 32 deletions
diff --git a/ethchain/state_transition.go b/ethchain/state_transition.go
index 8ed528c9f..a03a3a94a 100644
--- a/ethchain/state_transition.go
+++ b/ethchain/state_transition.go
@@ -2,6 +2,10 @@ package ethchain
import (
"fmt"
+ "github.com/ethereum/eth-go/ethstate"
+ "github.com/ethereum/eth-go/ethtrie"
+ "github.com/ethereum/eth-go/ethutil"
+ "github.com/ethereum/eth-go/ethvm"
"math/big"
)
@@ -27,17 +31,17 @@ type StateTransition struct {
gas, gasPrice *big.Int
value *big.Int
data []byte
- state *State
+ state *ethstate.State
block *Block
- cb, rec, sen *StateObject
+ cb, rec, sen *ethstate.StateObject
}
-func NewStateTransition(coinbase *StateObject, tx *Transaction, state *State, block *Block) *StateTransition {
+func NewStateTransition(coinbase *ethstate.StateObject, tx *Transaction, state *ethstate.State, block *Block) *StateTransition {
return &StateTransition{coinbase.Address(), tx.Recipient, tx, new(big.Int), new(big.Int).Set(tx.GasPrice), tx.Value, tx.Data, state, block, coinbase, nil, nil}
}
-func (self *StateTransition) Coinbase() *StateObject {
+func (self *StateTransition) Coinbase() *ethstate.StateObject {
if self.cb != nil {
return self.cb
}
@@ -45,7 +49,7 @@ func (self *StateTransition) Coinbase() *StateObject {
self.cb = self.state.GetOrNewStateObject(self.coinbase)
return self.cb
}
-func (self *StateTransition) Sender() *StateObject {
+func (self *StateTransition) Sender() *ethstate.StateObject {
if self.sen != nil {
return self.sen
}
@@ -54,7 +58,7 @@ func (self *StateTransition) Sender() *StateObject {
return self.sen
}
-func (self *StateTransition) Receiver() *StateObject {
+func (self *StateTransition) Receiver() *ethstate.StateObject {
if self.tx != nil && self.tx.CreatesContract() {
return nil
}
@@ -67,7 +71,7 @@ func (self *StateTransition) Receiver() *StateObject {
return self.rec
}
-func (self *StateTransition) MakeStateObject(state *State, tx *Transaction) *StateObject {
+func (self *StateTransition) MakeStateObject(state *ethstate.State, tx *Transaction) *ethstate.StateObject {
contract := MakeContract(tx, state)
return contract
@@ -154,7 +158,7 @@ func (self *StateTransition) TransitionState() (err error) {
var (
tx = self.tx
sender = self.Sender()
- receiver *StateObject
+ receiver *ethstate.StateObject
)
defer self.RefundGas()
@@ -163,13 +167,13 @@ func (self *StateTransition) TransitionState() (err error) {
sender.Nonce += 1
// Transaction gas
- if err = self.UseGas(GasTx); err != nil {
+ if err = self.UseGas(ethvm.GasTx); err != nil {
return
}
// Pay data gas
dataPrice := big.NewInt(int64(len(self.data)))
- dataPrice.Mul(dataPrice, GasData)
+ dataPrice.Mul(dataPrice, ethvm.GasData)
if err = self.UseGas(dataPrice); err != nil {
return
}
@@ -178,7 +182,7 @@ func (self *StateTransition) TransitionState() (err error) {
return fmt.Errorf("Insufficient funds to transfer value. Req %v, has %v", self.value, sender.Amount)
}
- var snapshot *State
+ var snapshot *ethstate.State
// If the receiver is nil it's a contract (\0*32).
if tx.CreatesContract() {
// Subtract the (irreversible) amount from the senders account
@@ -220,10 +224,10 @@ func (self *StateTransition) TransitionState() (err error) {
return fmt.Errorf("Error during init execution %v", err)
}
- receiver.script = code
+ receiver.Code = code
} else {
- if len(receiver.Script()) > 0 {
- _, err = self.Eval(receiver.Script(), receiver, "code")
+ if len(receiver.Code) > 0 {
+ _, err = self.Eval(receiver.Code, receiver, "code")
if err != nil {
self.state.Set(snapshot)
@@ -235,7 +239,7 @@ func (self *StateTransition) TransitionState() (err error) {
return
}
-func (self *StateTransition) transferValue(sender, receiver *StateObject) error {
+func (self *StateTransition) transferValue(sender, receiver *ethstate.StateObject) error {
if sender.Amount.Cmp(self.value) < 0 {
return fmt.Errorf("Insufficient funds to transfer value. Req %v, has %v", self.value, sender.Amount)
}
@@ -248,34 +252,61 @@ func (self *StateTransition) transferValue(sender, receiver *StateObject) error
return nil
}
-func (self *StateTransition) Eval(script []byte, context *StateObject, typ string) (ret []byte, err error) {
+func (self *StateTransition) Eval(script []byte, context *ethstate.StateObject, typ string) (ret []byte, err error) {
var (
- block = self.block
- initiator = self.Sender()
- state = self.state
+ transactor = self.Sender()
+ state = self.state
+ env = NewEnv(state, self.tx, self.block)
+ callerClosure = ethvm.NewClosure(transactor, context, script, self.gas, self.gasPrice)
)
- closure := NewClosure(initiator, context, script, state, self.gas, self.gasPrice)
- vm := NewVm(state, nil, RuntimeVars{
- Origin: initiator.Address(),
- Block: block,
- BlockNumber: block.Number,
- PrevHash: block.PrevHash,
- Coinbase: block.Coinbase,
- Time: block.Time,
- Diff: block.Difficulty,
- Value: self.value,
- })
+ vm := ethvm.New(env)
vm.Verbose = true
vm.Fn = typ
- ret, err = Call(vm, closure, self.data)
+ ret, _, err = callerClosure.Call(vm, self.tx.Data)
+
+ /*
+ closure := NewClosure(initiator, context, script, state, self.gas, self.gasPrice)
+ vm := NewVm(state, nil, RuntimeVars{
+ Origin: initiator.Address(),
+ Block: block,
+ BlockNumber: block.Number,
+ PrevHash: block.PrevHash,
+ Coinbase: block.Coinbase,
+ Time: block.Time,
+ Diff: block.Difficulty,
+ Value: self.value,
+ })
+ vm.Verbose = true
+ vm.Fn = typ
+
+ ret, err = Call(vm, closure, self.data)
+ */
return
}
-func Call(vm *Vm, closure *Closure, data []byte) (ret []byte, err error) {
+/*
+func Call(vm *eth.Vm, closure *Closure, data []byte) (ret []byte, err error) {
ret, _, err = closure.Call(vm, data)
return
}
+*/
+
+// Converts an transaction in to a state object
+func MakeContract(tx *Transaction, state *ethstate.State) *ethstate.StateObject {
+ // Create contract if there's no recipient
+ if tx.IsContract() {
+ addr := tx.CreationAddress()
+
+ contract := state.NewStateObject(addr)
+ contract.InitCode = tx.Data
+ contract.State = ethstate.NewState(ethtrie.NewTrie(ethutil.Config.Db, ""))
+
+ return contract
+ }
+
+ return nil
+}
generated by cgit (git 2.34.1) at 2024-11-15 13:05:47 +0800