comment := f.Comments[0].List[0]
	pos := comment.Pos()
	if fset.PositionFor(pos, false /* absolute position */).Offset != 1 {
		t.Error("expected offset 1") // error in test
	}

	testComment(t, f, len(src), &ast.Comment{Slash: pos, Text: "//-style comment"})
	testComment(t, f, len(src), &ast.Comment{Slash: pos, Text: "/*-style comment */"})
	testComment(t, f, len(src), &ast.Comment{Slash: pos, Text: "/*-style \n comment */"})

	for _, group := range f.Comments {
		// A //go:build or a //go:debug comment is ignored after the package declaration
		// (but adjoining it is OK, in contrast to +build comments).
		if group.Pos() >= f.Package {
			check.inHeader = false
		}

		// Check each line of a //-comment.
		for _, c := range group.List {
			check.comment(c.Slash, c.Text)
		}
	}
}

	if ipsetErr, ok := err.(nl.IPSetError); ok && ipsetErr == nl.IPSET_ERR_EXIST {
		return nil
	}

	return err
}

func (m *realDeps) destroySet(name string) error {
	err := netlink.IpsetDestroy(name)
	return err
}

func (m *realDeps) addIP(name string, ip netip.Addr, ipProto uint8, comment string, replace bool) error {

		comment, _, ok = bytes.Cut(data[2:], starSlash)
		if !ok {
			// malformed comment
			return "", 0
		}
		if bytes.Contains(comment, newline) {
			return "", 0
		}
	}
	comment = bytes.TrimSpace(comment)

	// split comment into `import`, `"pkg"`
	word, arg := parseWord(comment)
	if string(word) != "import" {
		return "", 0
	}

	for _, group := range info.parsed.Comments {
		if group.Pos() >= info.parsed.Package {
			break
		}
		for _, c := range group.List {
			if strings.HasPrefix(c.Text, "//go:") {
				info.directives = append(info.directives, Directive{c.Text, info.fset.Position(c.Slash)})
			}
		}
	}

	// If the file imports "embed",
	// we have to look for //go:embed comments
	// in the remainder of the file.

		// get per-file instructions
		expectErrors := false
		filename := filepath.Join(path, f.Name())
		goVersion := ""
		if comment := firstComment(filename); comment != "" {
			if strings.Contains(comment, "-goexperiment") {
				continue // ignore this file
			}
			fields := strings.Fields(comment)
			switch fields[0] {
			case "skip", "compiledir":
				continue // ignore this file
			case "errorcheck":

The `initial` and `next` subdirectories of this directory are for release notes.

## For developers

Release notes should be added to `next` by editing existing files or creating
new files. **Do not add RELNOTE=yes comments in CLs.** Instead, add a file to
the CL (or ask the author to do so).

At the end of the development cycle, the files will be merged by being
concatenated in sorted order by pathname. Files in the directory matching the

		{"\t\n\t", []string{}, []string{}, []string{}, false},
		{"#comment\n", []string{}, []string{}, []string{}, false},
		{" #comment\n", []string{}, []string{}, []string{}, false},
		{"#comment\n#comment", []string{}, []string{}, []string{}, false},
		{"#comment\nnameserver", []string{}, []string{}, []string{}, true},                           // nameserver empty

//nolint:unused // U1000 see comment above, we know it's unused normally.
func (fakeTestDeps) StartCPUProfile(io.Writer) error {
	return nil
}

//nolint:unused // U1000 see comment above, we know it's unused normally.
func (fakeTestDeps) StopCPUProfile() {}

//nolint:unused // U1000 see comment above, we know it's unused normally.
func (fakeTestDeps) StartTestLog(io.Writer) {}

A package statement is said to have an "import comment" if it is immediately
followed (before the next newline) by a comment of one of these two forms:

	package math // import "path"
	package math /* import "path" */

The go command will refuse to install a package with an import comment
unless it is being referred to by that import path. In this way, import comments