\chapter Built-in Exceptions

The \Q interpreter supplies its own built-in exceptions, as well as
recognizing user-defined exceptions. (See \l throw.)

\PRELIMINARY

The list of built-in exceptions is listed here:
\list
\omit
    \i \Func ImportFailedException -- raised by \l{import}. The import
    failed because the imported file contains a syntax error.
    \i \Func ImportNotFoundException -- raised by \l{import}. No matching
    file could be found to import.
\endomit
\i \Func ConstAssignException -- raised if an attempt is made to
assign to a constant.
\endlist
