s.nlsemi = true
		s.tok = _Rbrack

	case '}':
		s.nextch()
		s.nlsemi = true
		s.tok = _Rbrace

	case ':':
		s.nextch()
		if s.ch == '=' {
			s.nextch()
			s.tok = _Define
			break
		}
		s.tok = _Colon

	case '.':
		s.nextch()
		if isDecimal(s.ch) {
			s.number(true)
			break
		}
		if s.ch == '.' {
			s.nextch()
			if s.ch == '.' {
				s.nextch()

// segment.
func (s *source) rewind() {
	// ok to verify precondition - rewind is rarely called
	if s.b < 0 {
		panic("no active segment")
	}
	s.col -= uint(s.r - s.b)
	s.r = s.b
	s.nextch()
}

func (s *source) nextch() {
redo:
	s.col += uint(s.chw)
	if s.ch == '\n' {
		s.line++
		s.col = 0
	}

	// fast common case: at least one ASCII character
	if s.ch = rune(s.buf[s.r]); s.ch < sentinel {

	if fetcher != nil {
		p, src, err = fetcher.Fetch(source, duration, timeout)
		if err != nil {
			return
		}
	}
	if err != nil || p == nil {
		// Fetch the profile over HTTP or from a file.
		p, src, err = fetch(source, duration, timeout, ui, tr)
		if err != nil {
			return
		}
	}

	if err = p.CheckValid(); err != nil {

	"istio.io/istio/pkg/slices"
)

func FetchOne[T any](ctx HandlerContext, c Collection[T], opts ...FetchOption) *T {
	res := Fetch[T](ctx, c, opts...)
	switch len(res) {
	case 0:
		return nil
	case 1:
		return &res[0]
	default:
		panic("FetchOne found for more than 1 item")
	}
}

func Fetch[T any](ctx HandlerContext, cc Collection[T], opts ...FetchOption) []T {
	h := ctx.(registerDependency)
	c := cc.(internalCollection[T])

	// so that pass 2 won't stomp on an fd it needs later.
	if pipe < nextfd {
		_, _, err1 = RawSyscall(SYS_FCNTL, uintptr(pipe), F_DUP2FD_CLOEXEC, uintptr(nextfd))
		if err1 != 0 {
			goto childerror
		}
		pipe = nextfd
		nextfd++
	}
	for i = 0; i < len(fd); i++ {
		if fd[i] >= 0 && fd[i] < i {
			if nextfd == pipe { // don't stomp on pipe
				nextfd++
			}

		pipe = nextfd
		nextfd++
	}
	for i = 0; i < len(fd); i++ {
		if fd[i] >= 0 && fd[i] < i {
			if nextfd == pipe { // don't stomp on pipe
				nextfd++
			}
			switch runtime.GOOS {
			case "illumos", "solaris":
				_, err1 = fcntl1(uintptr(fd[i]), _F_DUP2FD_CLOEXEC, uintptr(nextfd))
			default:
				_, err1 = dup2child(uintptr(fd[i]), uintptr(nextfd))
				if err1 != 0 {
					goto childerror
				}

			if err1 != 0 {
				goto childerror
			}
			_, _, err1 = RawSyscall(SYS_FCNTL, uintptr(nextfd), F_SETFD, FD_CLOEXEC)
		}
		if err1 != 0 {
			goto childerror
		}
		pipe = nextfd
		nextfd++
	}
	for i = 0; i < len(fd); i++ {
		if fd[i] >= 0 && fd[i] < i {
			if nextfd == pipe { // don't stomp on pipe
				nextfd++
			}
			if runtime.GOOS == "netbsd" || (runtime.GOOS == "openbsd" && runtime.GOARCH == "mips64") {

	}
}

static void
matchprint(regmatch_t* match, int nmatch, int nsub, char* ans, unsigned long test)
{
	int	i;

	for (; nmatch > nsub + 1; nmatch--)
		if ((match[nmatch-1].rm_so != -1 || match[nmatch-1].rm_eo != -1) && (!(test & TEST_IGNORE_POSITION) || match[nmatch-1].rm_so >= 0 && match[nmatch-1].rm_eo >= 0))
			break;
	for (i = 0; i < nmatch; i++)
	{
		printf("(");
		matchoffprint(match[i].rm_so);

			// Zip may have partially written to f before failing.
			// (Perhaps the server crashed while sending the file?)
			// Since we allow fallback on error in some cases, we need to fix up the
			// file to be empty again for the next attempt.
			if _, err := f.Seek(0, io.SeekStart); err != nil {
				unrecoverableErr = err
				return err
			}
			if err := f.Truncate(0); err != nil {
				unrecoverableErr = err
				return err
			}
		}

public class DefaultBuildOperationIdFactory implements BuildOperationIdFactory {
    public static final long ROOT_BUILD_OPERATION_ID_VALUE = 1L;

    private final AtomicLong nextId = new AtomicLong(ROOT_BUILD_OPERATION_ID_VALUE);

    @Override
    public long nextId() {
        return nextId.getAndIncrement();
    }