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fix(geth_state_diffs): use pre value as to_value when post is absent #251

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fix(geth_state_diffs): use pre value as to_value when post is absent #251

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6 changes: 4 additions & 2 deletions crates/freeze/src/multi_datasets/geth_state_diffs.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -179,7 +179,8 @@ fn add_codes(
let blank = Bytes::new();
let (from_value, to_value) = match (pre, post) {
(Some(pre), Some(post)) => (pre, post),
(Some(pre), None) => (pre, &blank),
// geth only records post if the value changed; no post means code is unchanged
(Some(pre), None) => (pre, pre),
(None, Some(post)) => (&blank, post),
(None, None) => (&blank, &blank),
};
Expand Down Expand Up @@ -256,7 +257,8 @@ where
{
match (pre, post) {
(Some(pre), Some(post)) => (pre, post),
(Some(pre), None) => (pre, new),
// geth only records post if the value changed; no post means value is unchanged
(Some(pre), None) => (pre, pre),
(None, Some(post)) => (new, post),
(None, None) => (new, new),
}
Expand Down