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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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8
core/state/statedb_test.go
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@ -51,7 +51,7 @@ func TestUpdateLeaks(t *testing.T) {
if i%3 == 0 {
state.SetCode(addr, []byte{i, i, i, i, i})
}
state.IntermediateRoot()
state.IntermediateRoot(false)
}
// Ensure that no data was leaked into the database
for _, key := range db.Keys() {
@ -86,7 +86,7 @@ func TestIntermediateLeaks(t *testing.T) {
modify(transState, common.Address{byte(i)}, i, 0)
}
// Write modifications to trie.
transState.IntermediateRoot()
transState.IntermediateRoot(false)
// Overwrite all the data with new values in the transient database.
for i := byte(0); i < 255; i++ {
@ -95,10 +95,10 @@ func TestIntermediateLeaks(t *testing.T) {
}
// Commit and cross check the databases.
if _, err := transState.Commit(); err != nil {
if _, err := transState.Commit(false); err != nil {
t.Fatalf("failed to commit transition state: %v", err)
}
if _, err := finalState.Commit(); err != nil {
if _, err := finalState.Commit(false); err != nil {
t.Fatalf("failed to commit final state: %v", err)
}
for _, key := range finalDb.Keys() {