ipld-eth-server/libraries/shared/storage/utils/keys_lookup.go
Rob Mulholand b8fec5e4e3 (VDB-929) Minimize storage key lookup bespoke code
- Extract shared namespace for looking up and hashing keys
- Require storage transformers only to implement a loader that
  associates known keys with metadata
- Move key loader/lookup utils to utils directory to avoid
  multiple "storage" packages in imports
2019-10-28 14:29:09 -05:00

38 lines
1.2 KiB
Go

// VulcanizeDB
// Copyright © 2019 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 utils
import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto"
)
func AddHashedKeys(currentMappings map[common.Hash]StorageValueMetadata) map[common.Hash]StorageValueMetadata {
copyOfCurrentMappings := make(map[common.Hash]StorageValueMetadata)
for k, v := range currentMappings {
copyOfCurrentMappings[k] = v
}
for k, v := range copyOfCurrentMappings {
currentMappings[hashKey(k)] = v
}
return currentMappings
}
func hashKey(key common.Hash) common.Hash {
return crypto.Keccak256Hash(key.Bytes())
}