/interpreter/tags/at_build150307/src/edu/vub/at/exceptions/XTypeMismatch.java

 1/**
 2 * AmbientTalk/2 Project
 3 * XTypeMismatch.java created on Jul 13, 2006 at 9:43:54 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.exceptions;
29
30import edu.vub.at.eval.Evaluator;
31import edu.vub.at.objects.ATObject;
32import edu.vub.at.objects.ATStripe;
33import edu.vub.at.objects.coercion.NativeStripes;
34
35/**
36 * XTypeMismatch instances are thrown when a value conversion failed.
37 * 
38 * @author smostinc
39 * @author tvcutsem
40 */
41public class XTypeMismatch extends InterpreterException {
42
43	private static final long serialVersionUID = -3135452124227872807L;
44	
45	private final ATObject failedObject_;
46    private final Class expectedType_;
47
48	public XTypeMismatch(Class expectedType, ATObject failedObject) {
49		expectedType_ = expectedType;
50		failedObject_ = failedObject;
51	}
52
53	public ATObject getFailedObject() {
54		return failedObject_;
55	}
56	
57	public Class getExpectedType() {
58		return expectedType_;
59	}
60	
61	public String getMessage() {
62		String obj = Evaluator.toString(failedObject_);
63		return "Type mismatch: expected " + Evaluator.valueNameOf(expectedType_)
64		           + ", given " + obj + " (type: " + Evaluator.valueNameOf(failedObject_.getClass())+ ")";
65	}
66	
67	public ATStripe getStripeType() {
68		return NativeStripes._TYPEMISMATCH_;
69	}
70
71}