ipld-eth-server/pkg/transformers/storage_diffs/shared/decoder.go
Rob Mulholand 867f92c431 (VDB-298) Consume Pit contract storage diffs
- Continuously parse storage diffs CSV data to read Pit contract state
- Convert ilks in database to raw bytes32 value for use in generating
  storage keys dynamically
- Persist storage diffs with block number and hash for validation
2019-02-06 10:31:46 -06:00

43 lines
1.2 KiB
Go

// VulcanizeDB
// Copyright © 2018 Vulcanize
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package shared
import (
"github.com/ethereum/go-ethereum/common"
"math/big"
)
func Decode(row StorageDiffRow, metadata StorageValueMetadata) (interface{}, error) {
switch metadata.Type {
case Uint256:
return decodeUint256(row.StorageValue.Bytes()), nil
case Address:
return decodeAddress(row.StorageValue.Bytes()), nil
default:
return nil, ErrTypeNotFound{}
}
}
func decodeUint256(raw []byte) string {
n := big.NewInt(0).SetBytes(raw)
return n.String()
}
func decodeAddress(raw []byte) string {
return common.BytesToAddress(raw).Hex()
}