uplift: add database package from evm repositories

vms/evm/database/wrapped_database.go

@@ -0,0 +1,79 @@
+// Copyright (C) 2019-2025, Ava Labs, Inc. All rights reserved.
+// See the file LICENSE for licensing terms.
+
+package database
+
+import (
+	"errors"
+
+	"github.com/ava-labs/libevm/ethdb"
+
+	avalanchegodb "github.com/ava-labs/avalanchego/database"
+)
+
+var (
+	errSnapshotNotSupported = errors.New("snapshot is not supported")
+	errStatNotSupported     = errors.New("stat is not supported")
+
+	_ ethdb.Batch         = (*ethBatchWrapper)(nil)
+	_ ethdb.KeyValueStore = (*database)(nil)
+)
+
+type database struct {
+	db avalanchegodb.Database
+}
+
+func New(db avalanchegodb.Database) ethdb.KeyValueStore { return database{db} }
+
+func (database) Stat(string) (string, error) { return "", errStatNotSupported }
+
+func (db database) NewBatch() ethdb.Batch { return ethBatchWrapper{batch: db.db.NewBatch()} }
+
+func (db database) Has(key []byte) (bool, error) { return db.db.Has(key) }
+
+func (db database) Get(key []byte) ([]byte, error) { return db.db.Get(key) }
+
+func (db database) Put(key, value []byte) error { return db.db.Put(key, value) }
+
+func (db database) Delete(key []byte) error { return db.db.Delete(key) }
+
+func (db database) Compact(start, limit []byte) error { return db.db.Compact(start, limit) }
+
+func (db database) Close() error { return db.db.Close() }
+
+func (db database) NewBatchWithSize(int) ethdb.Batch { return db.NewBatch() }
+
+func (database) NewSnapshot() (ethdb.Snapshot, error) {
+	return nil, errSnapshotNotSupported
+}
+
+func (db database) NewIterator(prefix []byte, start []byte) ethdb.Iterator {
+	newStart := make([]byte, len(prefix)+len(start))
+	copy(newStart, prefix)
+	copy(newStart[len(prefix):], start)
+	start = newStart
+
+	return db.db.NewIteratorWithStartAndPrefix(start, prefix)
+}
+
+func (db database) NewIteratorWithStart(start []byte) ethdb.Iterator {
+	return db.db.NewIteratorWithStart(start)
+}
+
+type ethBatchWrapper struct {
+	batch avalanchegodb.Batch
+}
+
+func (e ethBatchWrapper) Put(key, value []byte) error { return e.batch.Put(key, value) }
+
+func (e ethBatchWrapper) Delete(key []byte) error { return e.batch.Delete(key) }
+
+func (e ethBatchWrapper) ValueSize() int { return e.batch.Size() }
+
+func (e ethBatchWrapper) Write() error { return e.batch.Write() }
+
+func (e ethBatchWrapper) Reset() { e.batch.Reset() }
+
+func (e ethBatchWrapper) Replay(w ethdb.KeyValueWriter) error { return e.batch.Replay(w) }
+
+func (e ethBatchWrapper) Inner() avalanchegodb.Batch { return e.batch.Inner() }