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core, core/state, trie: EIP158, reprice & skip empty account write

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This commit implements EIP158 part 1, 2, 3 & 4

1. If an account is empty it's no longer written to the trie. An empty
  account is defined as (balance=0, nonce=0, storage=0, code=0).
2. Delete an empty account if it's touched
3. An empty account is redefined as either non-existent or empty.
4. Zero value calls and zero value suicides no longer consume the 25k
  reation costs.

params: moved core/config to params

Signed-off-by: Jeffrey Wilcke <jeffrey@ethereum.org>
This commit is contained in:
Jeffrey Wilcke
2016-10-20 13:36:29 +02:00
parent 932d973e36
commit 445feaeef5
74 changed files with 729 additions and 573 deletions
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51
tests/util.go
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@ -148,27 +148,8 @@ type VmTest struct {
PostStateRoot string
}
type RuleSet struct {
HomesteadBlock *big.Int
DAOForkBlock *big.Int
DAOForkSupport bool
HomesteadGasRepriceBlock *big.Int
}
func (r RuleSet) IsHomestead(n *big.Int) bool {
return n.Cmp(r.HomesteadBlock) >= 0
}
func (r RuleSet) GasTable(num *big.Int) params.GasTable {
if r.HomesteadGasRepriceBlock == nil || num == nil || num.Cmp(r.HomesteadGasRepriceBlock) < 0 {
return params.GasTableHomestead
}
return params.GasTableHomesteadGasRepriceFork
}
type Env struct {
ruleSet RuleSet
chainConfig *params.ChainConfig
depth int
state *state.StateDB
skipTransfer bool
@ -189,16 +170,16 @@ type Env struct {
evm *vm.EVM
}
func NewEnv(ruleSet RuleSet, state *state.StateDB) *Env {
func NewEnv(chainConfig *params.ChainConfig, state *state.StateDB) *Env {
env := &Env{
ruleSet: ruleSet,
state: state,
chainConfig: chainConfig,
state: state,
}
return env
}
func NewEnvFromMap(ruleSet RuleSet, state *state.StateDB, envValues map[string]string, exeValues map[string]string) *Env {
env := NewEnv(ruleSet, state)
func NewEnvFromMap(chainConfig *params.ChainConfig, state *state.StateDB, envValues map[string]string, exeValues map[string]string) *Env {
env := NewEnv(chainConfig, state)
env.origin = common.HexToAddress(exeValues["caller"])
env.parent = common.HexToHash(envValues["previousHash"])
@ -217,16 +198,16 @@ func NewEnvFromMap(ruleSet RuleSet, state *state.StateDB, envValues map[string]s
return env
}
func (self *Env) RuleSet() vm.RuleSet { return self.ruleSet }
func (self *Env) Vm() vm.Vm { return self.evm }
func (self *Env) Origin() common.Address { return self.origin }
func (self *Env) BlockNumber() *big.Int { return self.number }
func (self *Env) Coinbase() common.Address { return self.coinbase }
func (self *Env) Time() *big.Int { return self.time }
func (self *Env) Difficulty() *big.Int { return self.difficulty }
func (self *Env) Db() vm.Database { return self.state }
func (self *Env) GasLimit() *big.Int { return self.gasLimit }
func (self *Env) VmType() vm.Type { return vm.StdVmTy }
func (self *Env) ChainConfig() *params.ChainConfig { return self.chainConfig }
func (self *Env) Vm() vm.Vm { return self.evm }
func (self *Env) Origin() common.Address { return self.origin }
func (self *Env) BlockNumber() *big.Int { return self.number }
func (self *Env) Coinbase() common.Address { return self.coinbase }
func (self *Env) Time() *big.Int { return self.time }
func (self *Env) Difficulty() *big.Int { return self.difficulty }
func (self *Env) Db() vm.Database { return self.state }
func (self *Env) GasLimit() *big.Int { return self.gasLimit }
func (self *Env) VmType() vm.Type { return vm.StdVmTy }
func (self *Env) GetHash(n uint64) common.Hash {
return common.BytesToHash(crypto.Keccak256([]byte(big.NewInt(int64(n)).String())))
}