// thus, removing these methods early will not lead
		// to the false removal of possible conflicts
		return token.IsExported(d.Name.Name)
	}
	return false
}

// fileExports removes unexported declarations from src in place.
func (r *reader) fileExports(src *ast.File) {
	j := 0
	for _, d := range src.Decls {
		if r.filterDecl(d) {
			src.Decls[j] = d
			j++
		}
	}
	src.Decls = src.Decls[0:j]

	return IsExported(name)
}

// FileExports trims the AST for a Go source file in place such that
// only exported nodes remain: all top-level identifiers which are not exported
// and their associated information (such as type, initial value, or function
// body) are removed. Non-exported fields and methods of exported types are
// stripped. The [File.Comments] list is not changed.
//
// FileExports reports whether there are exported declarations.

	f, err := parser.ParseFile(fset, "", src, parser.ParseComments)
	if err != nil {
		return nil, fmt.Errorf("parse: %s\n%s", err, src)
	}

	// filter exports if necessary
	if mode&export != 0 {
		ast.FileExports(f) // ignore result
		f.Comments = nil   // don't print comments that are not in AST
	}

	// determine printer configuration
	cfg := Config{Tabwidth: tabwidth}
	if mode&rawFormat != 0 {
		cfg.Mode |= RawFormat

	checkFieldComments(t, f, "T.f5", "", "// f5 line comment")
	checkFieldComments(t, f, "T.f6", "", "/* f6 line comment */")
	checkFieldComments(t, f, "T.f7", "", "/*f7a*//*f7b*///f7c")

	ast.FileExports(f)
	checkFieldComments(t, f, "T.F1", "/* F1 lead comment *///", "/* F1 */// line comment")
	checkFieldComments(t, f, "T.F2", "// F2 lead// comment", "// F2 line comment")
	if getField(f, "T.f3") != nil {

		r.filenames[i] = filename
		i++
	}
	slices.Sort(r.filenames)

	// process files in sorted order
	for _, filename := range r.filenames {
		f := pkg.Files[filename]
		if mode&AllDecls == 0 {
			r.fileExports(f)
		}
		r.readFile(f)
	}

	for name, path := range r.importByName {
		if path == "" {
			delete(r.importByName, name)
		}
	}

		{"File.GoVersion", Field, 21},
		{"File.Imports", Field, 0},
		{"File.Name", Field, 0},
		{"File.Package", Field, 0},
		{"File.Scope", Field, 0},
		{"File.Unresolved", Field, 0},
		{"FileExports", Func, 0},
		{"Filter", Type, 0},
		{"FilterDecl", Func, 0},
		{"FilterFile", Func, 0},
		{"FilterFuncDuplicates", Const, 0},
		{"FilterImportDuplicates", Const, 0},
		{"FilterPackage", Func, 0},

pkg go/ast, const Lbl ObjKind
pkg go/ast, const Pkg ObjKind
pkg go/ast, const RECV ChanDir
pkg go/ast, const SEND ChanDir
pkg go/ast, const Typ ObjKind
pkg go/ast, const Var ObjKind
pkg go/ast, func FileExports(*File) bool
pkg go/ast, func FilterDecl(Decl, Filter) bool
pkg go/ast, func FilterFile(*File, Filter) bool
pkg go/ast, func FilterPackage(*Package, Filter) bool