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comparison graal/com.oracle.truffle.api/src/com/oracle/truffle/api/instrument/InstrumentListener.java @ 19826:a5b09092003a
Truffle/Instrumentation (part 2): For clients of Instrumentation, replace the TruffleEventListener interface with two: InstrumentListener, and ASTInstrumentListener. The former is simple, completely Truffle-safe (can't affect Truffle execution), and designed for simple tools. The latter is similar to the previous interface.
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
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date | Thu, 12 Mar 2015 18:04:30 -0700 |
parents | |
children | 37912559d662 |
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19825:907128d02b31 | 19826:a5b09092003a |
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1 /* | |
2 * Copyright (c) 2015, 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. Oracle designates this | |
8 * particular file as subject to the "Classpath" exception as provided | |
9 * by Oracle in the LICENSE file that accompanied this code. | |
10 * | |
11 * This code is distributed in the hope that it will be useful, but WITHOUT | |
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 * version 2 for more details (a copy is included in the LICENSE file that | |
15 * accompanied this code). | |
16 * | |
17 * You should have received a copy of the GNU General Public License version | |
18 * 2 along with this work; if not, write to the Free Software Foundation, | |
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
20 * | |
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
22 * or visit www.oracle.com if you need additional information or have any | |
23 * questions. | |
24 */ | |
25 package com.oracle.truffle.api.instrument; | |
26 | |
27 /** | |
28 * A listener of Truffle execution events that can collect information on behalf of an external | |
29 * tool. Contextual information about the source of the event, if not stored in the implementation | |
30 * of the listener, can be obtained via access to the {@link Probe} that generates the event. | |
31 */ | |
32 public interface InstrumentListener { | |
33 | |
34 /** | |
35 * Receive notification that an AST node's execute method is about to be called. | |
36 */ | |
37 void enter(Probe probe); | |
38 | |
39 /** | |
40 * Receive notification that an AST Node's {@code void}-valued execute method has just returned. | |
41 */ | |
42 void returnVoid(Probe probe); | |
43 | |
44 /** | |
45 * Receive notification that an AST Node's execute method has just returned a value (boxed if | |
46 * primitive). | |
47 */ | |
48 void returnValue(Probe probe, Object result); | |
49 | |
50 /** | |
51 * Receive notification that an AST Node's execute method has just thrown an exception. | |
52 */ | |
53 void returnExceptional(Probe probe, Exception exception); | |
54 } |