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annotate graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/instrument/SLStatementWrapperNode.java @ 18485:e3c95cbbb50c

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Truffle Instrumentation: major API revision, based around the Probe and Instrument classes; add Instrumentable API for language implementors, with most details automated; reimplemented to handle AST splitting automatically; more JUnit tests.
author Michael Van De Vanter <michael.van.de.vanter@oracle.com>
date Sun, 23 Nov 2014 16:07:23 -0800
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children d1c1cd2530d7
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18485
e3c95cbbb50c Truffle Instrumentation: major API revision, based around the Probe and Instrument classes; add Instrumentable API for language implementors, with most details automated; reimplemented to handle AST splitting automatically; more JUnit tests.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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1 /*
e3c95cbbb50c Truffle Instrumentation: major API revision, based around the Probe and Instrument classes; add Instrumentable API for language implementors, with most details automated; reimplemented to handle AST splitting automatically; more JUnit tests.
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2 * Copyright (c) 2012, 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 *
e3c95cbbb50c Truffle Instrumentation: major API revision, based around the Probe and Instrument classes; add Instrumentable API for language implementors, with most details automated; reimplemented to handle AST splitting automatically; more JUnit tests.
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5 * This code is free software; you can redistribute it and/or modify it
e3c95cbbb50c Truffle Instrumentation: major API revision, based around the Probe and Instrument classes; add Instrumentable API for language implementors, with most details automated; reimplemented to handle AST splitting automatically; more JUnit tests.
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6 * under the terms of the GNU General Public License version 2 only, as
e3c95cbbb50c Truffle Instrumentation: major API revision, based around the Probe and Instrument classes; add Instrumentable API for language implementors, with most details automated; reimplemented to handle AST splitting automatically; more JUnit tests.
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
e3c95cbbb50c Truffle Instrumentation: major API revision, based around the Probe and Instrument classes; add Instrumentable API for language implementors, with most details automated; reimplemented to handle AST splitting automatically; more JUnit tests.
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
e3c95cbbb50c Truffle Instrumentation: major API revision, based around the Probe and Instrument classes; add Instrumentable API for language implementors, with most details automated; reimplemented to handle AST splitting automatically; more JUnit tests.
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
e3c95cbbb50c Truffle Instrumentation: major API revision, based around the Probe and Instrument classes; add Instrumentable API for language implementors, with most details automated; reimplemented to handle AST splitting automatically; more JUnit tests.
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12 * version 2 for more details (a copy is included in the LICENSE file that
e3c95cbbb50c Truffle Instrumentation: major API revision, based around the Probe and Instrument classes; add Instrumentable API for language implementors, with most details automated; reimplemented to handle AST splitting automatically; more JUnit tests.
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13 * accompanied this code).
e3c95cbbb50c Truffle Instrumentation: major API revision, based around the Probe and Instrument classes; add Instrumentable API for language implementors, with most details automated; reimplemented to handle AST splitting automatically; more JUnit tests.
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14 *
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15 * You should have received a copy of the GNU General Public License version
e3c95cbbb50c Truffle Instrumentation: major API revision, based around the Probe and Instrument classes; add Instrumentable API for language implementors, with most details automated; reimplemented to handle AST splitting automatically; more JUnit tests.
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16 * 2 along with this work; if not, write to the Free Software Foundation,
e3c95cbbb50c Truffle Instrumentation: major API revision, based around the Probe and Instrument classes; add Instrumentable API for language implementors, with most details automated; reimplemented to handle AST splitting automatically; more JUnit tests.
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
e3c95cbbb50c Truffle Instrumentation: major API revision, based around the Probe and Instrument classes; add Instrumentable API for language implementors, with most details automated; reimplemented to handle AST splitting automatically; more JUnit tests.
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20 * or visit www.oracle.com if you need additional information or have any
e3c95cbbb50c Truffle Instrumentation: major API revision, based around the Probe and Instrument classes; add Instrumentable API for language implementors, with most details automated; reimplemented to handle AST splitting automatically; more JUnit tests.
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21 * questions.
e3c95cbbb50c Truffle Instrumentation: major API revision, based around the Probe and Instrument classes; add Instrumentable API for language implementors, with most details automated; reimplemented to handle AST splitting automatically; more JUnit tests.
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22 */
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23 package com.oracle.truffle.sl.nodes.instrument;
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24
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25 import com.oracle.truffle.api.frame.*;
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26 import com.oracle.truffle.api.instrument.*;
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27 import com.oracle.truffle.api.instrument.ProbeNode.WrapperNode;
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28 import com.oracle.truffle.api.nodes.*;
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29 import com.oracle.truffle.sl.nodes.*;
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30
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31 /**
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32 * A Truffle node that can be inserted into a Simple AST (assumed not to have executed yet) to
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33 * enable "instrumentation" of a {@link SLStatementNode}. Tools wishing to interact with AST
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34 * execution may attach {@link Instrument}s to the {@link Probe} uniquely associated with the
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35 * wrapper, and to which this wrapper routes execution events.
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36 */
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37 @NodeInfo(cost = NodeCost.NONE)
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38 public final class SLStatementWrapperNode extends SLStatementNode implements WrapperNode {
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39
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40 @Child private SLStatementNode child;
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41 @Child private ProbeNode probeNode;
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42
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43 public SLStatementWrapperNode(SLStatementNode child) {
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44 super(child.getSourceSection());
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45 assert !(child instanceof SLStatementWrapperNode);
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46 this.child = child;
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47 }
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48
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49 public String instrumentationInfo() {
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50 return "Wrapper node for SL Statements";
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51 }
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52
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53 @Override
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54 public SLStatementNode getNonWrapperNode() {
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55 return child;
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56 }
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57
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58 public void insertProbe(ProbeNode newProbeNode) {
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59 this.probeNode = newProbeNode;
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60 }
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61
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62 public Probe getProbe() {
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63 try {
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64 return probeNode.getProbe();
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65 } catch (IllegalStateException e) {
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66 throw new IllegalStateException("A lite-Probed wrapper has no explicit Probe");
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67 }
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68 }
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69
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70 @Override
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71 public Node getChild() {
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72 return child;
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73 }
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74
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75 @Override
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76 public void executeVoid(VirtualFrame frame) {
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77 probeNode.enter(child, frame);
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78
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79 try {
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80 child.executeVoid(frame);
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81 probeNode.returnVoid(child, frame);
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82 } catch (KillException e) {
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83 throw (e);
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84 } catch (Exception e) {
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85 probeNode.returnExceptional(child, frame, e);
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86 throw (e);
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87 }
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88 }
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89
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90 @Override
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91 public Probe probe() {
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92 throw new IllegalStateException("Cannot call probe() on a wrapper.");
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93 }
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94
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95 @Override
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96 public void probeLite(TruffleEventReceiver eventReceiver) {
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97 throw new IllegalStateException("Cannot call probeLite() on a wrapper.");
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98 }
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99 }