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annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/nodes/instrument/InstrumentationProxyNode.java @ 13565:b88852aea6f3

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Truffle: extend Instrumentation Framework for proxies/probes to include phylum marking, low level stepping mode, and bug fixes.
author Michael Van De Vanter <michael.van.de.vanter@oracle.com>
date Tue, 07 Jan 2014 18:26:11 -0800
parents 69d2e4baa215
children
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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.
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1 /*
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2 * Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation. Oracle designates this
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8 * particular file as subject to the "Classpath" exception as provided
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9 * by Oracle in the LICENSE file that accompanied this code.
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.
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10 *
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11 * This code is distributed in the hope that it will be useful, but WITHOUT
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 * version 2 for more details (a copy is included in the LICENSE file that
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15 * accompanied this code).
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16 *
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17 * You should have received a copy of the GNU General Public License version
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18 * 2 along with this work; if not, write to the Free Software Foundation,
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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20 *
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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22 * or visit www.oracle.com if you need additional information or have any
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23 * questions.
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24 */
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25 package com.oracle.truffle.api.nodes.instrument;
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26
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27 import com.oracle.truffle.api.nodes.*;
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28 import com.oracle.truffle.api.nodes.instrument.InstrumentationProbeNode.ProbeChain;
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29
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30 /**
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31 * Interface implemented by language-specific Truffle <strong>proxy nodes</strong>: nodes that do
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32 * not participate in the language's execution semantics, but which are inserted into an AST so that
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33 * tools (e.g. tracers, analyzers, debuggers) can be notified of AST interpretation events and
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34 * possibly intervene.
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35 * <p>
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36 * Language-specific proxy nodes call notification methods on an attached {@linkplain ProbeChain
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37 * probe chain} which passes along {@linkplain InstrumentationProbeEvents events} to any
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38 * {@linkplain InstrumentationProbeNode probes} that might have been attached.
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39 */
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40 public interface InstrumentationProxyNode extends InstrumentationNode, PhylumMarked {
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41
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42 /**
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43 * Gets the non-instrumentation node being proxied.
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44 */
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45 Node getChild();
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46
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47 /**
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48 * Gets the chain of probes to which events at this node are delegated. Note that a chain of
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49 * probes may be used by more than one proxy.
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50 */
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51 ProbeChain getProbeChain();
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52
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53 }