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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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4
core/vm/instructions.go
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@@ -515,7 +515,7 @@ func opCreate(instr instruction, pc *uint64, env Environment, contract *Contract
input = memory.Get(offset.Int64(), size.Int64())
gas = new(big.Int).Set(contract.Gas)
)
if env.RuleSet().GasTable(env.BlockNumber()).CreateBySuicide != nil {
if env.ChainConfig().IsEIP150(env.BlockNumber()) {
gas.Div(gas, n64)
gas = gas.Sub(contract.Gas, gas)
}
@@ -526,7 +526,7 @@ func opCreate(instr instruction, pc *uint64, env Environment, contract *Contract
// homestead we must check for CodeStoreOutOfGasError (homestead only
// rule) and treat as an error, if the ruleset is frontier we must
// ignore this error and pretend the operation was successful.
if env.RuleSet().IsHomestead(env.BlockNumber()) && suberr == CodeStoreOutOfGasError {
if env.ChainConfig().IsHomestead(env.BlockNumber()) && suberr == CodeStoreOutOfGasError {
stack.push(new(big.Int))
} else if suberr != nil && suberr != CodeStoreOutOfGasError {
stack.push(new(big.Int))