PPI::Document
  PPI::Statement::Compound
    PPI::Structure::Block  	{ ... }
      PPI::Statement
        PPI::Structure::List  	( ... )
          PPI::Statement::Expression
            PPI::Token::Number  	'0'
        PPI::Token::Whitespace  	' '
        PPI::Token::Operator  	'||'
        PPI::Token::Whitespace  	' '
        PPI::Structure::List  	( ... )
          PPI::Statement::Expression
            PPI::Token::Number  	'1'
        PPI::Token::Structure  	';'
  PPI::Token::Whitespace  	'\n'