mirror of https://github.com/poanetwork/gecko.git
67 lines
2.3 KiB
Go
67 lines
2.3 KiB
Go
// (c) 2019-2020, Ava Labs, Inc. All rights reserved.
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// See the file LICENSE for licensing terms.
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package evm
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import (
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"errors"
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"github.com/ava-labs/go-ethereum/ethdb"
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"github.com/ava-labs/gecko/database"
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)
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var (
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errOpNotSupported = errors.New("this operation is not supported")
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)
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// Database implements ethdb.Database
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type Database struct{ database.Database }
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// HasAncient returns an error as we don't have a backing chain freezer.
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func (db Database) HasAncient(kind string, number uint64) (bool, error) {
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return false, errOpNotSupported
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}
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// Ancient returns an error as we don't have a backing chain freezer.
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func (db Database) Ancient(kind string, number uint64) ([]byte, error) { return nil, errOpNotSupported }
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// Ancients returns an error as we don't have a backing chain freezer.
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func (db Database) Ancients() (uint64, error) { return 0, errOpNotSupported }
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// AncientSize returns an error as we don't have a backing chain freezer.
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func (db Database) AncientSize(kind string) (uint64, error) { return 0, errOpNotSupported }
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// AppendAncient returns an error as we don't have a backing chain freezer.
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func (db Database) AppendAncient(number uint64, hash, header, body, receipts, td []byte) error {
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return errOpNotSupported
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}
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// TruncateAncients returns an error as we don't have a backing chain freezer.
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func (db Database) TruncateAncients(items uint64) error { return errOpNotSupported }
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// Sync returns an error as we don't have a backing chain freezer.
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func (db Database) Sync() error { return errOpNotSupported }
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// NewBatch implements ethdb.Database
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func (db Database) NewBatch() ethdb.Batch { return Batch{db.Database.NewBatch()} }
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// NewIterator implements ethdb.Database
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func (db Database) NewIterator() ethdb.Iterator { return db.Database.NewIterator() }
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// NewIteratorWithPrefix implements ethdb.Database
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func (db Database) NewIteratorWithPrefix(prefix []byte) ethdb.Iterator {
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return db.NewIteratorWithPrefix(prefix)
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}
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// NewIteratorWithStart implements ethdb.Database
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func (db Database) NewIteratorWithStart(start []byte) ethdb.Iterator {
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return db.NewIteratorWithStart(start)
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}
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// Batch implements ethdb.Batch
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type Batch struct{ database.Batch }
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// Replay implements ethdb.Batch
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func (batch Batch) Replay(w ethdb.KeyValueWriter) error { return batch.Batch.Replay(w) }
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