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native: drop accounts with zero balance

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They make no sense. Fixes preview2 testnet state problem:

file BlockStorage_100000/dump-block-70000.json: block 69935: state mismatch for key ffffffff1454a6cb279fbcedc66162ad4ad5d1d910202b92743e000000000000000000000005: Deleted vs Added
This commit is contained in:
Roman Khimov 2020-06-23 21:57:05 +03:00
parent a77357227a
commit fccad11716
3 changed files with 22 additions and 4 deletions
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4
pkg/core/native/native_gas.go
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@ -58,7 +58,11 @@ func (g *GAS) increaseBalance(_ *interop.Context, _ util.Uint160, si *state.Stor
return errors.New("insufficient funds") return errors.New("insufficient funds")
} }
acc.Balance.Add(&acc.Balance, amount) acc.Balance.Add(&acc.Balance, amount)
if acc.Balance.Sign() != 0 {
si.Value = acc.Bytes() si.Value = acc.Bytes()
} else {
si.Value = nil
}
return nil return nil
} }

4
pkg/core/native/native_neo.go
View file

@ -180,7 +180,11 @@ func (n *NEO) increaseBalance(ic *interop.Context, h util.Uint160, si *state.Sto
} }
} }
acc.Balance.Add(&acc.Balance, amount) acc.Balance.Add(&acc.Balance, amount)
if acc.Balance.Sign() != 0 {
si.Value = acc.Bytes() si.Value = acc.Bytes()
} else {
si.Value = nil
}
return nil return nil
} }

14
pkg/core/native/native_nep5.go
View file

@ -180,7 +180,12 @@ func (c *nep5TokenNative) transfer(ic *interop.Context, from, to util.Uint160, a
if err := c.incBalance(ic, from, siFrom, inc); err != nil { if err := c.incBalance(ic, from, siFrom, inc); err != nil {
return err return err
} }
if err := ic.DAO.PutStorageItem(c.ContractID, keyFrom, siFrom); err != nil { if siFrom.Value == nil {
err = ic.DAO.DeleteStorageItem(c.ContractID, keyFrom)
} else {
err = ic.DAO.PutStorageItem(c.ContractID, keyFrom, siFrom)
}
if err != nil {
return err return err
} }
@ -193,7 +198,12 @@ func (c *nep5TokenNative) transfer(ic *interop.Context, from, to util.Uint160, a
if err := c.incBalance(ic, to, siTo, amount); err != nil { if err := c.incBalance(ic, to, siTo, amount); err != nil {
return err return err
} }
if err := ic.DAO.PutStorageItem(c.ContractID, keyTo, siTo); err != nil { if siTo.Value == nil {
err = ic.DAO.DeleteStorageItem(c.ContractID, keyTo)
} else {
err = ic.DAO.PutStorageItem(c.ContractID, keyTo, siTo)
}
if err != nil {
return err return err
} }
} }