/interpreter/tags/at2dist170907/src/edu/vub/at/objects/natives/NATException.java
Java | 99 lines | 50 code | 14 blank | 35 comment | 2 complexity | b6042a41861d75a03d0e0f6bd9017464 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 java.io.ByteArrayOutputStream; 31import java.io.PrintStream; 32 33import edu.vub.at.exceptions.InterpreterException; 34import edu.vub.at.objects.ATBoolean; 35import edu.vub.at.objects.ATObject; 36import edu.vub.at.objects.ATTable; 37import edu.vub.at.objects.coercion.NativeTypeTags; 38import edu.vub.at.objects.mirrors.Reflection; 39 40/** 41 * Instances of the class NATException provide a AmbientTalk representation for the 42 * default instances of all InterpreterExceptions. They allow catching exceptions 43 * thrown by the interpreter in AmbientTalk, as well as raising them for within 44 * custom code. 45 * 46 * @author smostinc 47 */ 48public class NATException extends NATByCopy { 49 50 private final InterpreterException wrappedException_; 51 52 public NATException(InterpreterException wrappedException) { 53 wrappedException_ = wrappedException; 54 } 55 56 public InterpreterException getWrappedException() { 57 return wrappedException_; 58 } 59 60 public NATText base_message() throws InterpreterException { 61 return NATText.atValue(wrappedException_.getMessage()); 62 } 63 64 public NATText base_stackTrace() throws InterpreterException { 65 ByteArrayOutputStream out = new ByteArrayOutputStream(); 66 wrappedException_.printAmbientTalkStackTrace(new PrintStream(out)); 67 return NATText.atValue(out.toString()); 68 } 69 70 public NativeATObject base_stackTrace__opeql_(NATText newTrace) throws InterpreterException { 71 return OBJNil._INSTANCE_; 72 } 73 74 public ATObject meta_newInstance(ATTable initargs) throws InterpreterException { 75 return Reflection.upExceptionCreation(wrappedException_, initargs); 76 } 77 78 public ATBoolean meta_isRelatedTo(ATObject object) throws InterpreterException { 79 if(object instanceof NATException) { 80 return NATBoolean.atValue( 81 wrappedException_.getClass().isAssignableFrom( 82 ((NATException)object).wrappedException_.getClass())); 83 } else { 84 return NATBoolean._FALSE_; 85 } 86 } 87 88 public ATTable meta_typeTags() throws InterpreterException { 89 return NATTable.of(wrappedException_.getType(), NativeTypeTags._ISOLATE_); 90 } 91 92 public NATText meta_print() throws InterpreterException { 93 return NATText.atValue("<exception:" + wrappedException_.getType() + ": " + wrappedException_.getMessage() + ">"); 94 } 95 96 public ATObject meta_clone() throws InterpreterException { 97 return this; 98 } 99}