pkg go/parser, const Trace Mode
pkg go/parser, func ParseDir(*token.FileSet, string, func(os.FileInfo) bool, Mode) (map[string]*ast.Package, error)
pkg go/parser, func ParseExpr(string) (ast.Expr, error)
pkg go/parser, func ParseFile(*token.FileSet, string, interface{}, Mode) (*ast.File, error)
pkg go/parser, type Mode uint
pkg go/printer, const RawFormat Mode
pkg go/printer, const SourcePos Mode
pkg go/printer, const TabIndent Mode