Trying to handle restriction for components of various specialized cl…

…asses.

Closes modelica#2235

chapters/classes.tex

@@ -817,9 +817,7 @@ \section{Specialized Classes}\doublelabel{specialized-classes}
 of a record may not have prefixes \lstinline!input!, \lstinline!output!,
 \lstinline!inner!, \lstinline!outer!, \lstinline!stream,!
 or \lstinline!flow!. Enhanced with implicitly available record constructor function,
-see \autoref{record-constructor-functions}. Additionally, record components can be used as
-component references in expressions and in the left hand side of
-assignments, subject to normal type compatibility rules. The components
+see \autoref{record-constructor-functions}. The components
 directly declared in a record may only be of specialized class record
 and type.\\ \hline
 \lstinline!type! & May only be predefined types, enumerations, array of
@@ -877,6 +875,12 @@ \section{Specialized Classes}\doublelabel{specialized-classes}
 \end{lstlisting}
 {]}\\ \hline
 \end{longtable}
+Additionally only components of specialized classes \lstinline!record!, \lstinline!type!, \lstinline!operator record!, and
+connector classes based on any of those can be used as component references in normal expressions and in the left hand
+side of assignments, subject to normal type compatibility rules.
+Additionally components of connectors may be arguments of connect-statements,
+and any component can be used as argument to the \lstinline!ndims! and \lstinline!size!-functions, or for accessing
+elements of that component (possibly in combination with array indexing).
 
 {[}\emph{Example for ''operator'': }
 \begin{lstlisting}[language=modelica]