/interpreter/tags/at2dist110511/src/edu/vub/at/exceptions/signals/Signal.java
http://ambienttalk.googlecode.com/ · Java · 45 lines · 3 code · 2 blank · 40 comment · 0 complexity · 6bfc80be04ad4abc055e87be78bdd454 MD5 · raw file
- /**
- * AmbientTalk/2 Project
- * Signal.java created on 31-okt-2006 at 12:29:13
- * (c) Programming Technology Lab, 2006 - 2007
- * Authors: Tom Van Cutsem & Stijn Mostinckx
- *
- * Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- */
- package edu.vub.at.exceptions.signals;
- /**
- * @author tvcutsem
- *
- * Signal is the abstract superclass of all AT/2 interpreter Signals.
- *
- * Signals are exceptions which *cannot* be caught at the AmbientTalk base-level.
- * They cannot even be caught at the meta-level, but are accessible to the implementation only.
- *
- * Signals pervade the AT/2 interpreter, which is why they are declared to be unchecked exceptions,
- * i.e. they subclass RuntimeException. This signifies that these exceptions should always be
- * caught by the lowest-level evaluation loops in the runtime, such that they cannot cause the
- * interpreter to crash unexpectedly.
- */
- public abstract class Signal extends RuntimeException {
- }