Mercurial > hg > truffle
comparison graal/com.oracle.max.cri/src/com/sun/cri/ci/CiExceptionHandler.java @ 3733:e233f5660da4
Added Java files from Maxine project.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Sat, 17 Dec 2011 19:59:18 +0100 |
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3732:3e2e8b8abdaf | 3733:e233f5660da4 |
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1 /* | |
2 * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved. | |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
20 * or visit www.oracle.com if you need additional information or have any | |
21 * questions. | |
22 */ | |
23 package com.sun.cri.ci; | |
24 | |
25 import com.sun.cri.ri.*; | |
26 | |
27 /** | |
28 * An implementation of the {@link RiExceptionHandler} interface. | |
29 */ | |
30 public class CiExceptionHandler implements RiExceptionHandler { | |
31 | |
32 public static final CiExceptionHandler[] NONE = {}; | |
33 | |
34 public final int startBCI; | |
35 public final int endBCI; | |
36 public final int handlerBCI; | |
37 public final int catchTypeCPI; | |
38 public final RiType catchType; | |
39 | |
40 /** | |
41 * Creates a new exception handler with the specified ranges. | |
42 * @param startBCI the start index of the protected range | |
43 * @param endBCI the end index of the protected range | |
44 * @param catchBCI the index of the handler | |
45 * @param catchTypeCPI the index of the throwable class in the constant pool | |
46 * @param catchType the type caught by this exception handler | |
47 */ | |
48 public CiExceptionHandler(int startBCI, int endBCI, int catchBCI, int catchTypeCPI, RiType catchType) { | |
49 this.startBCI = startBCI; | |
50 this.endBCI = endBCI; | |
51 this.handlerBCI = catchBCI; | |
52 this.catchTypeCPI = catchTypeCPI; | |
53 this.catchType = catchType; | |
54 } | |
55 | |
56 public int startBCI() { | |
57 return startBCI; | |
58 } | |
59 | |
60 public int endBCI() { | |
61 return endBCI; | |
62 } | |
63 | |
64 public int handlerBCI() { | |
65 return handlerBCI; | |
66 } | |
67 | |
68 public int catchTypeCPI() { | |
69 return catchTypeCPI; | |
70 } | |
71 | |
72 public boolean isCatchAll() { | |
73 return catchTypeCPI == 0; | |
74 } | |
75 | |
76 public RiType catchType() { | |
77 return catchType; | |
78 } | |
79 | |
80 @Override | |
81 public String toString() { | |
82 return new StringBuilder(20). | |
83 append('['). | |
84 append(startBCI). | |
85 append(" - "). | |
86 append(endBCI). | |
87 append(") -> "). | |
88 append(handlerBCI). | |
89 append(" type="). | |
90 append(catchType == null ? "*any*" : catchType.name()). | |
91 toString(); | |
92 } | |
93 } |