neoneo-go/pkg/core/native/util.go

62 lines
1.5 KiB
Go
Raw Normal View History

2020-10-01 15:17:09 +00:00
package native
import (
"encoding/hex"
"fmt"
"math/big"
2020-11-27 10:55:48 +00:00
2020-10-01 15:17:09 +00:00
"github.com/nspcc-dev/neo-go/pkg/core/dao"
"github.com/nspcc-dev/neo-go/pkg/core/storage"
"github.com/nspcc-dev/neo-go/pkg/encoding/bigint"
"github.com/nspcc-dev/neo-go/pkg/util"
2021-01-22 12:12:09 +00:00
"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
2020-10-01 15:17:09 +00:00
)
var intOne = big.NewInt(1)
var intTwo = big.NewInt(2)
func getConvertibleFromDAO(id int32, d *dao.Simple, key []byte, conv stackitem.Convertible) error {
2020-10-01 15:17:09 +00:00
si := d.GetStorageItem(id, key)
if si == nil {
return storage.ErrKeyNotFound
}
return stackitem.DeserializeConvertible(si, conv)
2020-10-01 15:17:09 +00:00
}
2020-11-19 10:00:46 +00:00
func putConvertibleToDAO(id int32, d *dao.Simple, key []byte, conv stackitem.Convertible) error {
data, err := stackitem.SerializeConvertible(conv)
if err != nil {
return err
2020-11-19 10:00:46 +00:00
}
d.PutStorageItem(id, key, data)
return nil
2020-11-19 10:00:46 +00:00
}
2020-11-27 10:55:48 +00:00
func setIntWithKey(id int32, dao *dao.Simple, key []byte, value int64) {
dao.PutStorageItem(id, key, bigint.ToBytes(big.NewInt(value)))
}
func getIntWithKey(id int32, dao *dao.Simple, key []byte) int64 {
si := dao.GetStorageItem(id, key)
if si == nil {
panic(fmt.Errorf("item with id = %d and key = %s is not initialized", id, hex.EncodeToString(key)))
}
return bigint.FromBytes(si).Int64()
}
// makeUint160Key creates a key from account script hash.
func makeUint160Key(prefix byte, h util.Uint160) []byte {
k := make([]byte, util.Uint160Size+1)
k[0] = prefix
copy(k[1:], h.BytesBE())
return k
}
2021-01-22 12:12:09 +00:00
func toString(item stackitem.Item) string {
s, err := stackitem.ToString(item)
if err != nil {
panic(err)
}
return s
}