\begin{psyntax}{Structured Types}{typestructured}
\synt{structured\ type} 
\(
\synt{array\ type} \\
\synt{record\ type} \\
\synt{class\ type} \\
\synt{class\ reference\ type}\\
\synt{set\ type}\\
\synt{file\ type}
\)
\end{psyntax}