func (i scoreAdjustTyp) String() string {
	var b bytes.Buffer

	remain := uint64(i)
	seen := false

	for k, v := range _scoreAdjustTyp_value {
		x := _scoreAdjustTyp_name[_scoreAdjustTyp_index[k]:_scoreAdjustTyp_index[k+1]]
		if v == 0 {
			if i == 0 {
				b.WriteString(x)
				return b.String()
			}
			continue
		}
		if (v & remain) == v {
			remain &^= v

*/
package p

func f() {
	var x interface{}
	switch x.(type) { // should remain the same
	}
	switch (x.(type)) { // should become: switch x.(type) {
	}

	switch x.(type) { // should remain the same
	case int:
	}
	switch (x.(type)) { // should become: switch x.(type) {
	case int:
	}

	switch x.(type) { // should remain the same
	case []int:
	}

const maxCopyFileRangeRound = 1 << 30

// CopyFileRange copies at most remain bytes of data from src to dst, using
// the copy_file_range system call. dst and src must refer to regular files.
func CopyFileRange(dst, src *FD, remain int64) (written int64, handled bool, err error) {
	if !isKernelVersionGE53() {
		return 0, false, nil
	}

	for remain > 0 {
		max := remain
		if max > maxCopyFileRangeRound {
			max = maxCopyFileRangeRound
		}

		ctr:     bytes.Clone(iv),
		out:     make([]byte, 0, bufSize),
		outUsed: 0,
	}
}

func (x *ctr) refill() {
	remain := len(x.out) - x.outUsed
	copy(x.out, x.out[x.outUsed:])
	x.out = x.out[:cap(x.out)]
	bs := x.b.BlockSize()
	for remain <= len(x.out)-bs {
		x.b.Encrypt(x.out[remain:], x.ctr)
		remain += bs

		// Increment counter
		for i := len(x.ctr) - 1; i >= 0; i-- {
			x.ctr[i]++
			if x.ctr[i] != 0 {
				break

//
// If spliceFrom returns handled == false, it has performed no work.
func spliceFrom(c *netFD, r io.Reader) (written int64, err error, handled bool) {
	var remain int64 = 1<<63 - 1 // by default, copy until EOF
	lr, ok := r.(*io.LimitedReader)
	if ok {
		remain, r = lr.N, lr.R
		if remain <= 0 {
			return 0, nil, true
		}
	}

	var s *netFD
	switch v := r.(type) {
	case *TCPConn:
		s = v.fd
	case tcpConnWithoutWriteTo:

	srcfd  int
	remain int64

	written int64
	handled bool
	err     error

	original func(dst, src *poll.FD, remain int64) (int64, bool, error)
}

func (h *spliceFileHook) install() {
	h.original = *PollSpliceFile
	*PollSpliceFile = func(dst, src *poll.FD, remain int64) (int64, bool, error) {
		h.called = true
		h.dstfd = dst.Sysfd
		h.srcfd = src.Sysfd
		h.remain = remain

	if err != nil {
		return 0, false, err
	}
	defer putPipe(p)
	var inPipe, n int
	for err == nil && remain > 0 {
		max := maxSpliceSize
		if int64(max) > remain {
			max = int(remain)
		}
		inPipe, err = spliceDrain(p.wfd, src, max)
		// The operation is considered handled if splice returns no
		// error, or an error other than EINVAL. An EINVAL means the
		// kernel does not support splice for the socket type of src.

//
// lostcancel: check cancel func returned by context.WithCancel is called
//
// The cancellation function returned by context.WithCancel, WithTimeout,
// and WithDeadline must be called or the new context will remain live
// until its parent context is cancelled.
// (The background context is never cancelled.)

	if !deb.remainingKnown {
		return
	}
	if deb.remain < 0 {
		fmt.Fprintf(os.Stderr, "remaining byte count is negative! %d\n", deb.remain)
		return
	}
	data := make([]byte, deb.remain)
	n, _ := deb.r.peek(data)
	if n == 0 {
		os.Stderr.Write(empty)
		return
	}
	b := new(bytes.Buffer)
	fmt.Fprintf(b, "[%d]{\n", deb.remain)
	// Blanks until first byte
	lineLength := 0

}

type spliceHook struct {
	called bool
	dstfd  int
	srcfd  int
	remain int64

	written int64
	handled bool
	err     error

	original func(dst, src *poll.FD, remain int64) (int64, bool, error)
}

func (h *spliceHook) install() {
	h.original = pollSplice
	pollSplice = func(dst, src *poll.FD, remain int64) (int64, bool, error) {
		h.called = true
		h.dstfd = dst.Sysfd