public object transform(TxtLocation loc, SpecialForm m, object source)
{
try {
return m.m(source);
} catch (Exception e) {
throw new InterpreterException(loc, "exception occured in special form: " + m.m.Method.Name, e);
}
}
public void AddMacro(Symbol sym, SpecialForm.Macro m)
{
definitions.Add(sym, new SpecialForm(m));
}