- return new Twig_Source(" foo bar\n twig source\n\n", 'foo.twig', false === $this->filename ? null : ($this->filename ?: 'bar.twig'));
+ return new Twig\Source(" foo bar\n twig source\n\n", 'foo.twig', false === $this->filename ? null : ($this->filename ?: 'bar.twig'));