go/src/internal/zstd/window.go

type window …

// reset clears stored data and configures window size.
func (w *window) reset(size int) { … }

// len returns the number of stored bytes.
func (w *window) len() uint32 { … }

// save stores up to size last bytes from the buf.
func (w *window) save(buf []byte) { … }

// appendTo appends stored bytes between from and to indices to the buf.
// Index from must be less or equal to index to and to must be less or equal to w.len().
func (w *window) appendTo(buf []byte, from, to uint32) []byte { … }