From 445feaeef58bd89a113743dccf6fd5df55cde6fa Mon Sep 17 00:00:00 2001 From: Jeffrey Wilcke Date: Thu, 20 Oct 2016 13:36:29 +0200 Subject: core, core/state, trie: EIP158, reprice & skip empty account write 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 --- core/state_transition.go | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'core/state_transition.go') diff --git a/core/state_transition.go b/core/state_transition.go index 9e6b2f567..2b9d1c6d1 100644 --- a/core/state_transition.go +++ b/core/state_transition.go @@ -139,7 +139,7 @@ func (self *StateTransition) from() (vm.Account, error) { f common.Address err error ) - if self.env.RuleSet().IsHomestead(self.env.BlockNumber()) { + if self.env.ChainConfig().IsHomestead(self.env.BlockNumber()) { f, err = self.msg.From() } else { f, err = self.msg.FromFrontier() @@ -234,7 +234,7 @@ func (self *StateTransition) TransitionDb() (ret []byte, requiredGas, usedGas *b msg := self.msg sender, _ := self.from() // err checked in preCheck - homestead := self.env.RuleSet().IsHomestead(self.env.BlockNumber()) + homestead := self.env.ChainConfig().IsHomestead(self.env.BlockNumber()) contractCreation := MessageCreatesContract(msg) // Pay intrinsic gas if err = self.useGas(IntrinsicGas(self.data, contractCreation, homestead)); err != nil { -- cgit v1.2.3