func (p ErrorList) Err() error {
	if len(p) == 0 {
		return nil
	}
	return p
}

// PrintError is a utility function that prints a list of errors to w,
// one error per line, if the err parameter is an [ErrorList]. Otherwise
// it prints the err string.
func PrintError(w io.Writer, err error) {
	if list, ok := err.(ErrorList); ok {
		for _, e := range list {
			fmt.Fprintf(w, "%s\n", e)
		}

	valStr := fmt.Sprint(val)
	if len(r.FindString(valStr)) != len(valStr) {
		errs = util.AppendErr(errs, fmt.Errorf("invalid value %s: %v", path, val))
		printError(errs.ToError())
	}
	return errs
}

// validateStringList returns a validator function that works on a string list, using the supplied ValidatorFunc vf on
// each element.

	var gofmtBuf strings.Builder
	if err := format.Node(&gofmtBuf, fset, n); err != nil {
		return "<" + err.Error() + ">"
	}
	return gofmtBuf.String()
}

func report(err error) {
	scanner.PrintError(os.Stderr, err)
	exitCode = 2
}

func walkDir(path string) {
	filepath.WalkDir(path, visitFile)
}

func visitFile(path string, f fs.DirEntry, err error) error {
	if err == nil && isGoFile(f) {

`

func usage() {
	fmt.Fprintln(os.Stderr, usageString)
	flag.PrintDefaults()
	os.Exit(2)
}

func report(err error) {
	if *panicOnError {
		panic(err)
	}
	scanner.PrintError(os.Stderr, err)
	if list, ok := err.(scanner.ErrorList); ok {
		errorCount += len(list)
		return
	}
	errorCount++
}

// parse may be called concurrently.

		t.Errorf("found %d raw errors, expected 9", len(list))
		PrintError(os.Stderr, list)
	}

	list.Sort()
	if len(list) != 9 {
		t.Errorf("found %d sorted errors, expected 9", len(list))
		PrintError(os.Stderr, list)
	}

	list.RemoveMultiples()
	if len(list) != 4 {
		t.Errorf("found %d one-per-line errors, expected 4", len(list))
		PrintError(os.Stderr, list)
	}
}

type errorCollector struct {

// changing its exit code to a nonzero value.
func (r *reporter) Report(err error) {
	if err == nil {
		panic("Report with nil error")
	}
	st := r.getState()
	scanner.PrintError(st.err, err)
	st.exitCode = 2
}

func (r *reporter) ExitCode() int {
	return r.getState().exitCode
}

// If info == nil, we are formatting stdin instead of a file.

		{"(ErrorList).Swap", Method, 0},
		{"Error", Type, 0},
		{"Error.Msg", Field, 0},
		{"Error.Pos", Field, 0},
		{"ErrorHandler", Type, 0},
		{"ErrorList", Type, 0},
		{"Mode", Type, 0},
		{"PrintError", Func, 0},
		{"ScanComments", Const, 0},
		{"Scanner", Type, 0},
		{"Scanner.ErrorCount", Field, 0},
	},
	"go/token": {
		{"(*File).AddLine", Method, 0},
		{"(*File).AddLineColumnInfo", Method, 11},

return fields;};function LogReader(dispatchTable){this.dispatchTable_=dispatchTable;this.lineNum_=0;this.csvParser_=new CsvParser();}

pkg go/printer, type Config struct, Mode Mode
pkg go/printer, type Config struct, Tabwidth int
pkg go/printer, type Mode uint
pkg go/scanner, const ScanComments Mode
pkg go/scanner, func PrintError(io.Writer, error)
pkg go/scanner, method (*ErrorList) Add(token.Position, string)
pkg go/scanner, method (*ErrorList) RemoveMultiples()
pkg go/scanner, method (*ErrorList) Reset()