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annotate truffle/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/instrument/SLStandardASTProber.java @ 22219:1c0f490984d5

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Merge with f47b601edbc626dcfe8b3636933b4834c89f7779
author Michael Van De Vanter <michael.van.de.vanter@oracle.com>
date Wed, 16 Sep 2015 15:36:22 -0700
parents dc83cc1f94f2 3aad794eec0e
children ffb52d4126bb
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1 /*
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2 * Copyright (c) 2012, 2015, 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 * The Universal Permissive License (UPL), Version 1.0
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6 *
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7 * Subject to the condition set forth below, permission is hereby granted to any
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8 * person obtaining a copy of this software, associated documentation and/or
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9 * data (collectively the "Software"), free of charge and under any and all
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10 * copyright rights in the Software, and any and all patent rights owned or
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11 * freely licensable by each licensor hereunder covering either (i) the
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12 * unmodified Software as contributed to or provided by such licensor, or (ii)
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13 * the Larger Works (as defined below), to deal in both
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14 *
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15 * (a) the Software, and
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16 *
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17 * (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
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18 * one is included with the Software each a "Larger Work" to which the Software
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19 * is contributed by such licensors),
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20 *
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21 * without restriction, including without limitation the rights to copy, create
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22 * derivative works of, display, perform, and distribute the Software and make,
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23 * use, sell, offer for sale, import, export, have made, and have sold the
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24 * Software and the Larger Work(s), and to sublicense the foregoing rights on
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25 * either these or other terms.
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26 *
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27 * This license is subject to the following condition:
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28 *
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29 * The above copyright notice and either this complete permission notice or at a
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30 * minimum a reference to the UPL must be included in all copies or substantial
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31 * portions of the Software.
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32 *
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33 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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34 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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35 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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36 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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37 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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38 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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39 * SOFTWARE.
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40 */
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41 package com.oracle.truffle.sl.nodes.instrument;
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42
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43 import static com.oracle.truffle.api.instrument.StandardSyntaxTag.ASSIGNMENT;
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44 import static com.oracle.truffle.api.instrument.StandardSyntaxTag.START_LOOP;
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45 import static com.oracle.truffle.api.instrument.StandardSyntaxTag.STATEMENT;
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46
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47 import com.oracle.truffle.api.instrument.ASTProber;
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48 import com.oracle.truffle.api.instrument.InstrumentationNode;
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49 import com.oracle.truffle.api.instrument.Instrumenter;
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50 import com.oracle.truffle.api.instrument.Probe;
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51 import com.oracle.truffle.api.nodes.Node;
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52 import com.oracle.truffle.api.nodes.NodeVisitor;
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53 import com.oracle.truffle.sl.nodes.SLExpressionNode;
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54 import com.oracle.truffle.sl.nodes.SLStatementNode;
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55 import com.oracle.truffle.sl.nodes.controlflow.SLWhileNode;
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56 import com.oracle.truffle.sl.nodes.local.SLWriteLocalVariableNode;
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57
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58 /**
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59 * A visitor which traverses a completely parsed Simple AST (presumed not yet executed) and enables
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60 * instrumentation at a few standard kinds of nodes.
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61 */
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62 public class SLStandardASTProber implements ASTProber {
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63
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64 public void probeAST(final Instrumenter instrumenter, Node startNode) {
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65 startNode.accept(new NodeVisitor() {
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66
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67 /**
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68 * Instruments and tags all relevant {@link SLStatementNode}s and
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69 * {@link SLExpressionNode}s. Currently, only SLStatementNodes that are not
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70 * SLExpressionNodes are tagged as statements.
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71 */
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72 public boolean visit(Node node) {
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73
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74 if (!(node instanceof InstrumentationNode) && node instanceof SLStatementNode && node.getParent() != null && node.getSourceSection() != null) {
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75 // All SL nodes are instrumentable, but treat expressions specially
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76
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77 if (node instanceof SLExpressionNode) {
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78 SLExpressionNode expressionNode = (SLExpressionNode) node;
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79 final Probe probe = instrumenter.probe(expressionNode);
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80 if (node instanceof SLWriteLocalVariableNode) {
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81 probe.tagAs(STATEMENT, null);
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82 probe.tagAs(ASSIGNMENT, null);
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83 }
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84 } else {
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85 SLStatementNode statementNode = (SLStatementNode) node;
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86 final Probe probe = instrumenter.probe(statementNode);
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87 probe.tagAs(STATEMENT, null);
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88 if (node instanceof SLWhileNode) {
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89 probe.tagAs(START_LOOP, null);
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90 }
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91 }
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92 }
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93 return true;
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94 }
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95 });
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96 }
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97 }