flag.String("input", "", "") outputFile := flag.String("output", "", "") flag.Parse() fset := token.NewFileSet() f, err := parser.ParseFile(fset, *inputFile, nil, parser.SkipObjectResolution|parser.ParseComments) if err != nil { log.Fatal(err) } cmap := ast.NewCommentMap(fset, f, f.Comments) // Drop header comments. cmap[ast.Node(f)] = nil // Remove top-level consts used across the main and generated files. var newDecls []ast.Decl for _, decl := range f.Decls { switch d := decl.(type) { case *ast.GenDecl: if d.Tok...