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/interpreter/tags/at_build150307/src/edu/vub/at/objects/natives/NATException.java

http://ambienttalk.googlecode.com/
Java | 78 lines | 34 code | 9 blank | 35 comment | 2 complexity | 0fe7bdc631d8dc3cdf3423e06bf9305f MD5 | raw file
 1/**
 2 * AmbientTalk/2 Project
 3 * NATException.java created on Oct 13, 2006 at 1:46:47 PM
 4 * (c) Programming Technology Lab, 2006 - 2007
 5 * Authors: Tom Van Cutsem & Stijn Mostinckx
 6 * 
 7 * Permission is hereby granted, free of charge, to any person
 8 * obtaining a copy of this software and associated documentation
 9 * files (the "Software"), to deal in the Software without
10 * restriction, including without limitation the rights to use,
11 * copy, modify, merge, publish, distribute, sublicense, and/or
12 * sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following
14 * conditions:
15 *
16 * The above copyright notice and this permission notice shall be
17 * included in all copies or substantial portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
20 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
21 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
22 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
23 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
24 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
25 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
26 * OTHER DEALINGS IN THE SOFTWARE.
27 */
28package edu.vub.at.objects.natives;
29
30import edu.vub.at.exceptions.InterpreterException;
31import edu.vub.at.exceptions.XTypeMismatch;
32import edu.vub.at.objects.ATBoolean;
33import edu.vub.at.objects.ATObject;
34import edu.vub.at.objects.ATTable;
35import edu.vub.at.objects.mirrors.Reflection;
36
37/**
38 * Instances of the class NATException provide a AmbientTalk representation for the 
39 * default instances of all InterpreterExceptions. They allow catching exceptions 
40 * thrown by the interpreter in AmbientTalk, as well as raising them for within
41 * custom code. 
42 *
43 * @author smostinc
44 */
45public class NATException extends NATByCopy {
46	
47	private final InterpreterException wrappedException_;
48	
49	public NATException(InterpreterException wrappedException) {
50		wrappedException_ = wrappedException;
51	}
52
53	public NATException asNativeException() throws XTypeMismatch {
54		return this;
55	}
56	
57	public InterpreterException getWrappedException() {
58		return wrappedException_;
59	}
60	
61    public ATObject meta_newInstance(ATTable initargs) throws InterpreterException {
62        return Reflection.upExceptionCreation(wrappedException_, initargs);
63    }
64
65	public ATBoolean meta_isRelatedTo(ATObject object) throws InterpreterException {
66		if(object instanceof NATException) {
67			return NATBoolean.atValue(
68					wrappedException_.getClass().isAssignableFrom(
69					object.asNativeException().wrappedException_.getClass())); 
70		} else {
71			return NATBoolean._FALSE_;
72		}
73	}
74	
75    public ATTable meta_getStripes() throws InterpreterException {
76    	return NATTable.of(wrappedException_.getStripeType());
77    }
78}