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 <jeffrey@ethereum.org>
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@ -29,11 +29,6 @@ import (
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"github.com/ethereum/go-ethereum/params"
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)
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type ruleSet struct{}
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func (self *ruleSet) IsHomestead(*big.Int) bool { return true }
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func (*ruleSet) GasTable(*big.Int) params.GasTable { return params.GasTableHomesteadGasRepriceFork }
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type Env struct {
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gasLimit *big.Int
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depth int
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@ -46,7 +41,9 @@ func NewEnv(config *vm.Config) *Env {
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return env
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}
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func (self *Env) RuleSet() vm.RuleSet { return &ruleSet{} }
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func (self *Env) ChainConfig() *params.ChainConfig {
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return params.TestChainConfig
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}
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func (self *Env) Vm() vm.Vm { return self.evm }
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func (self *Env) Origin() common.Address { return common.Address{} }
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func (self *Env) BlockNumber() *big.Int { return big.NewInt(0) }
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