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package entrydb
import (
"io"
)
type MemEntryStore[T EntryType, E Entry[T]] struct {
entries []E
}
func (s *MemEntryStore[T, E]) Size() int64 {
return int64(len(s.entries))
}
func (s *MemEntryStore[T, E]) LastEntryIdx() EntryIdx {
return EntryIdx(s.Size() - 1)
}
func (s *MemEntryStore[T, E]) Read(idx EntryIdx) (E, error) {
if idx < EntryIdx(len(s.entries)) {
return s.entries[idx], nil
}
var out E
return out, io.EOF
}
func (s *MemEntryStore[T, E]) Append(entries ...E) error {
s.entries = append(s.entries, entries...)
return nil
}
func (s *MemEntryStore[T, E]) Truncate(idx EntryIdx) error {
s.entries = s.entries[:min(s.Size()-1, int64(idx+1))]
return nil
}
func (s *MemEntryStore[T, E]) Close() error {
return nil
}