Document expressions

doc/type-system.tex

@@ -124,35 +124,3 @@ begin
   e := E.one
 end.
 \end{lstlisting}
-
-\chapter{Type operations}
-
-\chapter{Cast}
-
-\begin{grammar}
-<cast> = `cast' `(' <expression> `:\@' <type> `)'.
-\end{grammar}
-
-The type of an object can be reinterpreted with a cast expression: \\
-\verb|cast(object: Type)|.
-
-\chapter{Traits}
-
-\begin{grammar}
-<trait-identifier> = `#' <identifier>.
-
-<trait> = <trait-identifier> `(' [<types>] `)'.
-\end{grammar}
-
-Traits allow to query some information about the types, like their size or
-field offset or alignment. Calling a trait looks like a procedure call but
-traits names start with a \verb|#| and their arguments are type expressions and
-not value expressions.
-
-Supported compiler traits:
-
-\begin{itemize}
-	\item \verb|#size(T)| queries type size.
-	\item \verb|#align(T)| queries type alignment.
-	\item \verb|#offset(T, F)| queries the offset of the field \verb|F| in the record \verb|T|.
-\end{itemize}