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core: deduplicate and simplify processNEP17Transfer a bit

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Just refactoring, no functional changes.
This commit is contained in:
Roman Khimov 2021-08-11 22:36:26 +03:00
parent 50ee1a1f91
commit 3e60771175
1 changed files with 21 additions and 33 deletions
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54
pkg/core/blockchain.go
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@ -1066,46 +1066,34 @@ func (bc *Blockchain) processNEP17Transfer(cache *dao.Cached, h util.Uint256, b
Tx: h,
}
if !fromAddr.Equals(util.Uint160{}) {
balances, err := cache.GetNEP17TransferInfo(fromAddr)
if err != nil {
return
}
balances.LastUpdated[id] = b.Index
transfer.Amount = *new(big.Int).Sub(&transfer.Amount, amount)
balances.NewBatch, err = cache.AppendNEP17Transfer(fromAddr,
balances.NextTransferBatch, balances.NewBatch, transfer)
if err != nil {
return
}
if balances.NewBatch {
balances.NextTransferBatch++
}
if err := cache.PutNEP17TransferInfo(fromAddr, balances); err != nil {
_ = transfer.Amount.Neg(amount) // We already have the Int.
if appendNEP17Transfer(cache, fromAddr, transfer) != nil {
return
}
}
if !toAddr.Equals(util.Uint160{}) {
balances, err := cache.GetNEP17TransferInfo(toAddr)
if err != nil {
return
}
balances.LastUpdated[id] = b.Index
transfer.Amount = *amount
balances.NewBatch, err = cache.AppendNEP17Transfer(toAddr,
balances.NextTransferBatch, balances.NewBatch, transfer)
if err != nil {
return
}
if balances.NewBatch {
balances.NextTransferBatch++
}
if err := cache.PutNEP17TransferInfo(toAddr, balances); err != nil {
return
}
_ = transfer.Amount.Set(amount) // We already have the Int.
_ = appendNEP17Transfer(cache, toAddr, transfer) // Nothing useful we can do.
}
}
func appendNEP17Transfer(cache *dao.Cached, addr util.Uint160, transfer *state.NEP17Transfer) error {
balances, err := cache.GetNEP17TransferInfo(addr)
if err != nil {
return err
}
balances.LastUpdated[transfer.Asset] = transfer.Block
balances.NewBatch, err = cache.AppendNEP17Transfer(addr,
balances.NextTransferBatch, balances.NewBatch, transfer)
if err != nil {
return err
}
if balances.NewBatch {
balances.NextTransferBatch++
}
return cache.PutNEP17TransferInfo(addr, balances)
}
// ForEachNEP17Transfer executes f for each nep17 transfer in log.
func (bc *Blockchain) ForEachNEP17Transfer(acc util.Uint160, f func(*state.NEP17Transfer) (bool, error)) error {
balances, err := bc.dao.GetNEP17TransferInfo(acc)