import  /* ERROR "8:9" */  // indented with blanks
`
	m := CommentMap(strings.NewReader(src), regexp.MustCompile("^ ERROR "))
	found := 0 // number of errors found
	for line, errlist := range m {
		for _, err := range errlist {
			if err.Pos.Line() != line {
				t.Errorf("%v: got map line %d; want %d", err, err.Pos.Line(), line)
				continue
			}
			// err.Pos.Line() == line

	"github.com/google/pprof/internal/report"
)

// stackView generates the flamegraph view.
func (ui *webInterface) stackView(w http.ResponseWriter, req *http.Request) {
	// Get all data in a report.
	rpt, errList := ui.makeReport(w, req, []string{"svg"}, func(cfg *config) {
		cfg.CallTree = true
		cfg.Trim = false
		cfg.Granularity = "filefunctions"
	})
	if rpt == nil {
		return // error already reported
	}

			Source: api.EventSource{Component: "test"},
			Type:   api.EventTypeNormal,
		}
	}
	eventA := makeEvent("eventA")
	eventB := makeEvent("eventB")
	errList := Strategy.ValidateUpdate(context.Background(), eventA, eventB)
	if len(errList) == 0 {
		t.Errorf("ValidateUpdate should fail on name change")
	}

        import  /* ERROR "8:9" */  // indented with blanks
`
	m := commentMap([]byte(src), regexp.MustCompile("^ ERROR "))
	found := 0 // number of errors found
	for line, errlist := range m {
		for _, err := range errlist {
			if err.line != line {
				t.Errorf("%v: got map line %d; want %d", err, err.line, line)
				continue
			}
			// err.line == line

			got := strings.TrimSpace(err.text[len(" ERROR "):])

// It will check if any of the element of input error list is nil, to avoid
// nil pointer panic when call Error().
func NewAggregate(errlist []error) Aggregate {
	if len(errlist) == 0 {
		return nil
	}
	// In case of input error list contains nil
	var errs []error
	for _, e := range errlist {
		if e != nil {
			errs = append(errs, e)
		}
	}
	if len(errs) == 0 {
		return nil
	}
	return aggregate(errs)
}

John Howard <******@****.***> 1714485406 -0700

	{&os.SyscallError{Err: fs.ErrExist}, true, false},
	{nil, false, false},
}

func TestIsExist(t *testing.T) {
	for _, tt := range isExistTests {
		if is := os.IsExist(tt.err); is != tt.is {
			t.Errorf("os.IsExist(%T %v) = %v, want %v", tt.err, tt.err, is, tt.is)
		}
		if is := errors.Is(tt.err, fs.ErrExist); is != tt.is {
			t.Errorf("errors.Is(%T %v, fs.ErrExist) = %v, want %v", tt.err, tt.err, is, tt.is)
		}

	}
	for _, o := range strings.Split(s, ",") {
		res = append(res, lex.Tokenize(o))
	}
	return res
}

func TestErroneous(t *testing.T) {

	type errtest struct {
		pseudo   string
		operands string
		expected string
	}

	nonRuntimeTests := []errtest{
		{"TEXT", "", "expect two or three operands for TEXT"},
		{"TEXT", "%", "expect two or three operands for TEXT"},

// matches the second. It reports whether it finds a match. It should be
// used in preference to simple equality checks:
//
//	if errors.Is(err, fs.ErrExist)
//
// is preferable to
//
//	if err == fs.ErrExist
//
// because the former will succeed if err wraps [io/fs.ErrExist].
//
// [As] examines the tree of its first argument looking for an error that can be

// that a file or directory already exists. It is satisfied by [ErrExist] as
// well as some syscall errors.
//
// This function predates [errors.Is]. It only supports errors returned by
// the os package. New code should use errors.Is(err, fs.ErrExist).
func IsExist(err error) bool {
	return underlyingErrorIs(err, ErrExist)
}

// IsNotExist returns a boolean indicating whether the error is known to