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Changed prev_hash to block_hash, state transition now uses vm env

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* PREVHASH => BLOCKHASH( N )
* State transition object uses VMEnv as it's query interface
* Updated vm.Enviroment has GetHash( n ) for BLOCKHASH instruction
* Added GetHash to xeth, core, utils & test environments
This commit is contained in:
obscuren
2015-01-03 17:18:43 +01:00
parent 16f417f5af
commit ca1b2a1a91
13 changed files with 91 additions and 57 deletions
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41
core/state_transition.go
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@ -4,7 +4,6 @@ import (
"fmt"
"math/big"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethutil"
"github.com/ethereum/go-ethereum/state"
@ -28,18 +27,17 @@ import (
* 6) Derive new state root
*/
type StateTransition struct {
coinbase, receiver []byte
msg Message
gas, gasPrice *big.Int
initialGas *big.Int
value *big.Int
data []byte
state *state.StateDB
block *types.Block
coinbase []byte
msg Message
gas, gasPrice *big.Int
initialGas *big.Int
value *big.Int
data []byte
state *state.StateDB
cb, rec, sen *state.StateObject
Env vm.Environment
env vm.Environment
}
type Message interface {
@ -69,16 +67,19 @@ func MessageGasValue(msg Message) *big.Int {
return new(big.Int).Mul(msg.Gas(), msg.GasPrice())
}
func NewStateTransition(coinbase *state.StateObject, msg Message, state *state.StateDB, block *types.Block) *StateTransition {
return &StateTransition{coinbase.Address(), msg.To(), msg, new(big.Int), new(big.Int).Set(msg.GasPrice()), new(big.Int), msg.Value(), msg.Data(), state, block, coinbase, nil, nil, nil}
}
func (self *StateTransition) VmEnv() vm.Environment {
if self.Env == nil {
self.Env = NewEnv(self.state, self.msg, self.block)
func NewStateTransition(env vm.Environment, msg Message, coinbase *state.StateObject) *StateTransition {
return &StateTransition{
coinbase: coinbase.Address(),
env: env,
msg: msg,
gas: new(big.Int),
gasPrice: new(big.Int).Set(msg.GasPrice()),
initialGas: new(big.Int),
value: msg.Value(),
data: msg.Data(),
state: env.State(),
cb: coinbase,
}
return self.Env
}
func (self *StateTransition) Coinbase() *state.StateObject {
@ -183,7 +184,7 @@ func (self *StateTransition) TransitionState() (ret []byte, err error) {
return
}
vmenv := self.VmEnv()
vmenv := self.env
var ref vm.ContextRef
if MessageCreatesContract(msg) {
contract := MakeContract(msg, self.state)