go/src/bytes/reader.go

type Reader …

// Len returns the number of bytes of the unread portion of the
// slice.
func (r *Reader) Len() int { … }

// Size returns the original length of the underlying byte slice.
// Size is the number of bytes available for reading via [Reader.ReadAt].
// The result is unaffected by any method calls except [Reader.Reset].
func (r *Reader) Size() int64 { … }

// Read implements the [io.Reader] interface.
func (r *Reader) Read(b []byte) (n int, err error) { … }

// ReadAt implements the [io.ReaderAt] interface.
func (r *Reader) ReadAt(b []byte, off int64) (n int, err error) { … }

// ReadByte implements the [io.ByteReader] interface.
func (r *Reader) ReadByte() (byte, error) { … }

// UnreadByte complements [Reader.ReadByte] in implementing the [io.ByteScanner] interface.
func (r *Reader) UnreadByte() error { … }

// ReadRune implements the [io.RuneReader] interface.
func (r *Reader) ReadRune() (ch rune, size int, err error) { … }

// UnreadRune complements [Reader.ReadRune] in implementing the [io.RuneScanner] interface.
func (r *Reader) UnreadRune() error { … }

// Seek implements the [io.Seeker] interface.
func (r *Reader) Seek(offset int64, whence int) (int64, error) { … }

// WriteTo implements the [io.WriterTo] interface.
func (r *Reader) WriteTo(w io.Writer) (n int64, err error) { … }

// Reset resets the [Reader] to be reading from b.
func (r *Reader) Reset(b []byte) { … }

// NewReader returns a new [Reader] reading from b.
func NewReader(b []byte) *Reader { … }