// Copyright 2018 The LevelDB-Go and Pebble Authors. All rights reserved. Use // of this source code is governed by a BSD-style license that can be found in // the LICENSE file. package pebble import ( "context" "github.com/cockroachdb/pebble/internal/base" "github.com/cockroachdb/pebble/internal/keyspan" ) type errorIter struct { err error } // errorIter implements the base.InternalIterator interface. var _ internalIterator = (*errorIter)(nil) func (c *errorIter) SeekGE(key []byte, flags base.SeekGEFlags) (*InternalKey, base.LazyValue) { return nil, base.LazyValue{} } func (c *errorIter) SeekPrefixGE( prefix, key []byte, flags base.SeekGEFlags, ) (*base.InternalKey, base.LazyValue) { return nil, base.LazyValue{} } func (c *errorIter) SeekLT(key []byte, flags base.SeekLTFlags) (*InternalKey, base.LazyValue) { return nil, base.LazyValue{} } func (c *errorIter) First() (*InternalKey, base.LazyValue) { return nil, base.LazyValue{} } func (c *errorIter) Last() (*InternalKey, base.LazyValue) { return nil, base.LazyValue{} } func (c *errorIter) Next() (*InternalKey, base.LazyValue) { return nil, base.LazyValue{} } func (c *errorIter) Prev() (*InternalKey, base.LazyValue) { return nil, base.LazyValue{} } func (c *errorIter) NextPrefix([]byte) (*InternalKey, base.LazyValue) { return nil, base.LazyValue{} } func (c *errorIter) Error() error { return c.err } func (c *errorIter) Close() error { return c.err } func (c *errorIter) String() string { return "error" } func (c *errorIter) SetBounds(lower, upper []byte) {} func (c *errorIter) SetContext(_ context.Context) {} type errorKeyspanIter struct { err error } // errorKeyspanIter implements the keyspan.FragmentIterator interface. var _ keyspan.FragmentIterator = (*errorKeyspanIter)(nil) func (*errorKeyspanIter) SeekGE(key []byte) *keyspan.Span { return nil } func (*errorKeyspanIter) SeekLT(key []byte) *keyspan.Span { return nil } func (*errorKeyspanIter) First() *keyspan.Span { return nil } func (*errorKeyspanIter) Last() *keyspan.Span { return nil } func (*errorKeyspanIter) Next() *keyspan.Span { return nil } func (*errorKeyspanIter) Prev() *keyspan.Span { return nil } func (i *errorKeyspanIter) Error() error { return i.err } func (i *errorKeyspanIter) Close() error { return i.err } func (*errorKeyspanIter) String() string { return "error" }