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core/state/snapshot: implement storage iterator (#20971)

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* core/state/snapshot: implement storage iterator

* core/state/snapshot, tests: implement helper function

* core/state/snapshot: fix storage issue

If an account is deleted in the tx_1 but recreated in the tx_2,
the it can happen that in this diff layer, both destructedSet
and storageData records this account. In this case, the storage
iterator should be able to iterate the slots belong to new account
but disable further iteration in deeper layers(belong to old account)

* core/state/snapshot: address peter and martin's comment

* core/state: address comments

* core/state/snapshot: fix test
This commit is contained in:
gary rong
2020-04-29 17:53:08 +08:00
committed by GitHub
parent 1264c19f11
commit 26d271dfbb
13 changed files with 1096 additions and 204 deletions
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3
core/state/snapshot/difflayer_test.go
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@ -109,7 +109,8 @@ func TestMergeBasics(t *testing.T) {
if have, want := len(merged.storageList), i; have != want {
t.Errorf("[1] storageList wrong: have %v, want %v", have, want)
}
if have, want := len(merged.StorageList(aHash)), len(sMap); have != want {
list, _ := merged.StorageList(aHash)
if have, want := len(list), len(sMap); have != want {
t.Errorf("[2] StorageList() wrong: have %v, want %v", have, want)
}
if have, want := len(merged.storageList[aHash]), len(sMap); have != want {