Data commit

Task/Exceptions/Fantom/exceptions.fantom

@@ -0,0 +1,23 @@
+// Create a new error class by subclassing sys::Err
+const class SpecialErr : Err
+{
+  // you must provide some message about the error
+  // to the parent class, for reporting
+  new make () : super ("special error") {}
+}
+
+class Main
+{
+  static Void fn ()
+  {
+    throw SpecialErr ()
+  }
+
+  public static Void main ()
+  {
+    try
+      fn()
+    catch (SpecialErr e)
+      echo ("Caught " + e)
+  }
+}