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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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7
light/lightchain_test.go
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@@ -28,6 +28,7 @@ import (
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/pow"
"github.com/hashicorp/golang-lru"
"golang.org/x/net/context"
@@ -41,7 +42,7 @@ var (
// makeHeaderChain creates a deterministic chain of headers rooted at parent.
func makeHeaderChain(parent *types.Header, n int, db ethdb.Database, seed int) []*types.Header {
blocks, _ := core.GenerateChain(nil, types.NewBlockWithHeader(parent), db, n, func(i int, b *core.BlockGen) {
blocks, _ := core.GenerateChain(params.TestChainConfig, types.NewBlockWithHeader(parent), db, n, func(i int, b *core.BlockGen) {
b.SetCoinbase(common.Address{0: byte(seed), 19: byte(i)})
})
headers := make([]*types.Header, len(blocks))
@@ -51,8 +52,8 @@ func makeHeaderChain(parent *types.Header, n int, db ethdb.Database, seed int) [
return headers
}
func testChainConfig() *core.ChainConfig {
return &core.ChainConfig{HomesteadBlock: big.NewInt(0)}
func testChainConfig() *params.ChainConfig {
return &params.ChainConfig{HomesteadBlock: big.NewInt(0)}
}
// newCanonical creates a chain database, and injects a deterministic canonical