Jes Cok <******@****.***> 1695442540 +0000

	query   string
	current string
	allow   string
	vers    string
	err     string
}{
	{path: queryRepo, query: "<v0.0.0", vers: "v0.0.0-pre1"},
	{path: queryRepo, query: "<v0.0.0-pre1", err: `no matching versions for query "<v0.0.0-pre1"`},
	{path: queryRepo, query: "<=v0.0.0", vers: "v0.0.0"},
	{path: queryRepo, query: ">v0.0.0", vers: "v0.0.1"},
	{path: queryRepo, query: ">=v0.0.0", vers: "v0.0.0"},

		if b.err != nil {
			return nil, b.err
		}
		for n == 0 {
			n, u.is64 = b.unitLength()
		}
		dataOff := b.off
		vers := b.uint16()
		if vers < 2 || vers > 5 {
			b.error("unsupported DWARF version " + strconv.Itoa(int(vers)))
			break
		}
		u.vers = int(vers)
		if vers >= 5 {
			u.utype = b.uint8()
			u.asize = int(b.uint8())
		}
		var abbrevOff uint64
		if u.is64 {
			abbrevOff = b.uint64()

					hash = findHash(m)
				}
				if strings.HasPrefix(hash, vers) || strings.HasPrefix(vers, hash) {
					best = m.Version
				}
			}
		}
		if best != "" {
			vers = best
		}
	}

	a, err := readArchive(path, vers)
	if err != nil {
		if testing.Verbose() {
			fmt.Fprintf(os.Stderr, "go proxy: no archive %s %s: %v\n", path, vers, err)
		}
		if errors.Is(err, fs.ErrNotExist) {

// The caller is assumed to have checked that ModIsValid(path, vers) is true.
func ModIsPrefix(path, vers string) bool {
	if IsToolchain(path) {
		if path == "toolchain" {
			return IsLang(FromToolchain(vers))
		}
		return IsLang(vers)
	}
	// Semver
	dots := 0
	for i := 0; i < len(vers); i++ {
		switch vers[i] {
		case '-', '+':
			return false
		case '.':
			dots++
			if dots >= 2 {
				return false

			b.error("type unit length overflow")
			return b.err
		}
		hdroff := b.off
		vers := int(b.uint16())
		if vers != 4 {
			b.error("unsupported DWARF version " + strconv.Itoa(vers))
			return b.err
		}
		var ao uint64
		if !dwarf64 {
			ao = uint64(b.uint32())
		} else {
			ao = b.uint64()
		}
		atable, err := d.parseAbbrev(ao, vers)
		if err != nil {
			return err
		}
		asize := b.uint8()
		sig := b.uint64()

		buf = xlMetaV2TrimData(buf)

		vers = append(vers, metaCacheEntry{
			name:     "a",
			metadata: buf,
		})
	}

	// Shuffle...
	for i := 0; i < 100; i++ {
		rng := rand.New(rand.NewSource(int64(i)))
		rng.Shuffle(len(vers), func(i, j int) {
			vers[i], vers[j] = vers[j], vers[i]
		})
		var entries []chan metaCacheEntry
		for _, v := range vers {
			v.cached = nil

			exitCode = 1
			continue
		}
		path, vers, dir := f[0], f[1], f[2]
		mod, err := os.ReadFile(filepath.Join(gopath, "pkg/mod/cache/download", path, "@v", vers+".mod"))
		if err != nil {
			log.Printf("%s: %v", arg, err)
			exitCode = 1
			continue
		}
		info, err := os.ReadFile(filepath.Join(gopath, "pkg/mod/cache/download", path, "@v", vers+".info"))
		if err != nil {
			log.Printf("%s: %v", arg, err)

			needFullGraph = true
			if !HasModRoot() {
				base.Fatalf("go: cannot match %q: %v", arg, ErrNoModRoot)
			}
			continue
		}
		if path, vers, found := strings.Cut(arg, "@"); found {
			if vers == "upgrade" || vers == "patch" {
				if _, ok := rs.rootSelected(path); !ok || rs.pruning == unpruned {
					needFullGraph = true
					if !HasModRoot() {

			if need {
				r.Mod.Version = vers
				f.Syntax.updateLine(r.Syntax, "require", AutoQuote(path), vers)
				need = false
			} else {
				r.Syntax.markRemoved()
				*r = Require{}
			}
		}
	}

	if need {
		f.AddNewRequire(path, vers, false)
	}
	return nil
}

// AddNewRequire adds a new require line for path at version vers at the end of