Struct encoder

handshake.go:345–349

encoder provides helper methods for easy de-/encoding of binary data. If an error occurs, it calls check, which is expected to panic if its non-nil. If buf is non-nil, the encoder won't write to rw directly, but append to buf. That way, nested messages can be buffered before writing them out, to det

// append to buf. That way, nested messages can be buffered before writing them
// out, to determine their length.
type encoder struct {
	rw    io.ReadWriter
	buf   []byte
	check func(error)
}

func (e *encoder) write(b []byte) {
	if e.buf != nil {