comparison graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/instrument/InstrumentationProxyNode.java @ 13455:69d2e4baa215

Truffle: new infrastructure related to instrumentation, and in particular debugging: support for managing Source objects; framework for generalized "instrumentation proxy nodes" (to be inserted into ASTs with no runtime cost when inactive), and "probes" (which can be attached to proxy nodes to receive event notification); a rudimentary interface and abstract implementation for a "debug manager" (mostly a placeholder at this point); and the beginning of a language-agnostic ExecutionContext interface.
author Michael Van De Vanter <michael.van.de.vanter@oracle.com>
date Tue, 17 Dec 2013 20:22:45 -0800
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children b88852aea6f3
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13306:dfb780080923 13455:69d2e4baa215
1 /*
2 * Copyright (c) 2013, 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.nodes.instrument;
26
27 import com.oracle.truffle.api.nodes.instrument.InstrumentationProbeNode.ProbeChain;
28
29 /**
30 * Interface implemented by language-specific Truffle <strong>proxy nodes</strong>: nodes that do
31 * not participate in the language's execution semantics, but which are inserted into an AST so that
32 * tools (e.g. tracers, analyzers, debuggers) can be notified of AST interpretation events and
33 * possibly intervene.
34 * <p>
35 * Language-specific proxy nodes call notification methods on an attached {@linkplain ProbeChain
36 * probe chain} which passes along {@linkplain InstrumentationProbeEvents events} to any
37 * {@linkplain InstrumentationProbeNode probes} that might have been attached.
38 */
39 public interface InstrumentationProxyNode extends InstrumentationNode {
40
41 /**
42 * Gets the chain of probes to which events at this node are delegated. Note that a chain of
43 * probes may be used by more than one proxy.
44 */
45 ProbeChain getProbeChain();
46
47 }