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core: make GetUnspentCoins interop return array, fix #978.
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commit
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1 changed files with 13 additions and 2 deletions
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@ -7,6 +7,7 @@ import (
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"math"
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"github.com/nspcc-dev/neo-go/pkg/core/state"
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"github.com/nspcc-dev/neo-go/pkg/core/storage"
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"github.com/nspcc-dev/neo-go/pkg/core/transaction"
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"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract"
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@ -177,10 +178,20 @@ func (ic *interopContext) txGetUnspentCoins(v *vm.VM) error {
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return errors.New("value is not a transaction")
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}
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ucs, err := ic.dao.GetUnspentCoinState(tx.Hash())
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if err != nil {
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if err == storage.ErrKeyNotFound {
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v.Estack().PushVal([]vm.StackItem{})
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return nil
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} else if err != nil {
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return errors.New("no unspent coin state found")
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}
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v.Estack().PushVal(vm.NewInteropItem(ucs))
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items := make([]vm.StackItem, 0, len(ucs.States))
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for i := range items {
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if ucs.States[i].State&state.CoinSpent == 0 {
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items = append(items, vm.NewInteropItem(&ucs.States[i].Output))
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}
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}
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v.Estack().PushVal(items)
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return nil
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}
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