// for such regions to a new unique-id. This is required because walk() walks
  // the attached regions first before visiting the op, so there is no
  // opportunity during the walk to seed region arguments. Also note that walk
  // eventually also visits the Op on which the walk() is called, so make sure
  // we do not overwrite the function argument mapping here.
  func_op.walk([&](Operation* op) {
    if (op == func_op) return;

		if err := walk(filename, fi, walkFn); err != nil {
			if !fi.IsDir() || err != filepath.SkipDir {
				return err
			}
		}
	}
	return nil
}

// Walk walks the file tree rooted at root, calling walkFn for each file or
// directory in the tree, including root.
func Walk(root string, walkFn filepath.WalkFunc) error {
	Trace("Walk", root)
	info, err := Lstat(root)
	if err != nil {

	if as.X != nil && as.Y != nil {
		return convas(as, init)
	}
	return as
}

// walkAssignDotType walks an OAS2DOTTYPE node.
func walkAssignDotType(n *ir.AssignListStmt, init *ir.Nodes) ir.Node {
	walkExprListSafe(n.Lhs, init)
	n.Rhs[0] = walkExpr(n.Rhs[0], init)
	return n
}

// walkAssignFunc walks an OAS2FUNC node.
func walkAssignFunc(init *ir.Nodes, n *ir.AssignListStmt) ir.Node {
	init.Append(ir.TakeInit(n)...)

stderr '404 Not Found'

# get should walk down the proxy list past 404 and 410 responses.
env GOPROXY=$proxy/404,$proxy/410,$proxy
go get rsc.io/quote@v1.1.0

# get should not walk past other 4xx errors if proxies are separated with ','.
env GOPROXY=$proxy/403,$proxy
! go get rsc.io/quote@v1.2.0
stderr 'reading.*/403/rsc.io/.*: 403 Forbidden'

# get should not walk past non-4xx errors if proxies are separated with ','.

	}

	return tmpDir, nil
}

func ExampleWalk() {
	tmpDir, err := prepareTestDirTree("dir/to/walk/skip")
	if err != nil {
		fmt.Printf("unable to create test dir tree: %v\n", err)
		return
	}
	defer os.RemoveAll(tmpDir)
	os.Chdir(tmpDir)

	subDirToSkip := "skip"

	fmt.Println("On Unix:")
	err = filepath.Walk(".", func(path string, info fs.FileInfo, err error) error {
		if err != nil {

	r := ir.NewBlockStmt(base.Pos, nil)
	r.List = calls
	return walkStmt(typecheck.Stmt(r))
}

// walkRecoverFP walks an ORECOVERFP node.
func walkRecoverFP(nn *ir.CallExpr, init *ir.Nodes) ir.Node {
	return mkcall("gorecover", nn.Type(), init, walkExpr(nn.Args[0], init))
}

// walkUnsafeData walks an OUNSAFESLICEDATA or OUNSAFESTRINGDATA expression.
func walkUnsafeData(n *ir.UnaryExpr, init *ir.Nodes) ir.Node {

	script, err := os.ReadFile("testdata/script/chdir.txt")
	if err != nil {
		t.Fatal(err)
	}

	var walk func(string, *base.Command)
	walk = func(name string, cmd *base.Command) {
		if len(cmd.Commands) > 0 {
			for _, sub := range cmd.Commands {
				walk(name+" "+sub.Name(), sub)
			}
			return
		}
		if !cmd.Runnable() {
			return
		}
		if cmd.CustomFlags {

import java.lang.annotation.Annotation;

/**
 * A generalized type metadata walker for traversing annotated types and instances using their {@link TypeMetadata}.
 *
 * During the walk we first visit the root (the type or instance passed to {@link #walk(Object, TypeMetadataVisitor)},
 * and then the properties are visited in depth-first order.
 * Nested properties are marked with a nested annotation and are inspected for child properties that can be

    def "type walker should correctly visit empty type"() {
        given:
        def visitor = new TestStaticMetadataVisitor()

        when:
        TypeMetadataWalker.typeWalker(typeMetadataStore, TestNested.class).walk(TypeToken.of(MyEmptyTask), visitor)

        then:
        visitor.all == ["null::MyEmptyTask"]
    }

    def "instance walker should correctly visit instance with null values"() {
        given:

	var files []*ast.File
	for _, f := range fs {
		files = append(files, f)
	}
	return files
}

type collector struct {
	dirs  []string
	regex *regexp.Regexp
}

// handlePath walks the filesystem recursively, collecting directories,
// ignoring some unneeded directories (hidden/vendored) that are handled
// specially later.
func (c *collector) handlePath(path string, info os.FileInfo, err error) error {