// Flags, and returns a regular expression parse tree. The syntax is
// described in the top-level comment.
func Parse(s string, flags Flags) (*Regexp, error) {
	return parse(s, flags)
}

func parse(s string, flags Flags) (_ *Regexp, err error) {
	defer func() {
		switch r := recover(); r {
		default:
			panic(r)
		case nil:
			// ok
		case ErrLarge: // too big

//go:linkname _cgo_runtime_cgocall runtime.cgocall
func _cgo_runtime_cgocall(unsafe.Pointer, uintptr) int32

//go:linkname _cgoCheckPointer runtime.cgoCheckPointer
//go:noescape
func _cgoCheckPointer(interface{}, interface{})

//go:linkname _cgoCheckResult runtime.cgoCheckResult
//go:noescape
func _cgoCheckResult(interface{})
`

const gccgoGoProlog = `
func _cgoCheckPointer(interface{}, interface{})

	default:
		return fmt.Errorf("unsupported type: %v", typ)
	}
}

var translationMap = map[config.GroupVersionKind]func(r runtime.Object) config.Config{
	gvk.AuthorizationPolicy: func(r runtime.Object) config.Config {
		obj := r.(*apiistioioapisecurityv1beta1.AuthorizationPolicy)
		return config.Config{
			Meta: config.Meta{
				GroupVersionKind:  gvk.AuthorizationPolicy,

	// different line (all whitespace preceding the FUNC is emitted only when the
	// FUNC is emitted).
	startCol := p.out.Column - len("func ")
	if d.Recv != nil {
		p.parameters(d.Recv, funcParam) // method: print receiver
		p.print(blank)
	}
	p.expr(d.Name)
	p.signature(d.Type)
	p.funcBody(p.distanceFrom(d.Pos(), startCol), vtab, d.Body)
}

func (p *printer) decl(decl ast.Decl) {

func bucketShift(b uint8) uintptr {
	// Masking the shift amount allows overflow checks to be elided.
	return uintptr(1) << (b & (goarch.PtrSize*8 - 1))
}

// bucketMask returns 1<<b - 1, optimized for code generation.
func bucketMask(b uint8) uintptr {
	return bucketShift(b) - 1
}

// tophash calculates the tophash value for hash.
func tophash(hash uintptr) uint8 {

// another following <template-args>.  In that case, we reset the
// parse and just return the <template-param>.
func (st *state) demangleCastTemplateArgs(tp AST, addSubst bool) AST {
	save := st.copy()

	var args []AST
	failed := false
	func() {
		defer func() {
			if r := recover(); r != nil {
				if _, ok := r.(demangleErr); ok {
					failed = true
				} else {
					panic(r)

	// If JoinPath is nil, Import uses filepath.Join.
	JoinPath func(elem ...string) string

	// SplitPathList splits the path list into a slice of individual paths.
	// If SplitPathList is nil, Import uses filepath.SplitList.
	SplitPathList func(list string) []string

	// IsAbsPath reports whether path is an absolute path.
	// If IsAbsPath is nil, Import uses filepath.IsAbs.
	IsAbsPath func(path string) bool

	"istio.io/istio/pkg/util/sets"
)

func TestBuildHTTPRoutes(t *testing.T) {
	serviceRegistry := map[host.Name]*model.Service{
		"*.example.org": {
			Hostname:       "*.example.org",
			DefaultAddress: "1.1.1.1",
			Ports: model.PortList{
				&model.Port{
					Name:     "default",
					Port:     8080,
					Protocol: protocol.HTTP,
				},
			},
		},
	}

	node := func(cg *core.ConfigGenTest) *model.Proxy {

		},
	}
	for i := range tests {
		testFn(&tests[i], t)
	}
}

func TestSortControllerRevisions(t *testing.T) {
	type testcase struct {
		name      string
		revisions []*apps.ControllerRevision
		want      []string
	}
	testFn := func(test *testcase, t *testing.T) {
		t.Run(test.name, func(t *testing.T) {
			SortControllerRevisions(test.revisions)
			for i := range test.revisions {

		if set[testName] {
			return true
		}
	}
	return false
}

func (t test) goFileName() string {
	return filepath.Join(t.dir, t.goFile)
}

func (t test) goDirName() string {
	return filepath.Join(t.dir, strings.Replace(t.goFile, ".go", ".dir", -1))
}

// goDirFiles returns .go files in dir.
func goDirFiles(dir string) (filter []fs.DirEntry, _ error) {
	files, err := os.ReadDir(dir)