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annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/instrument/StandardTag.java @ 15605:bb9473723904
Truffle/Instrumentation:
- Merge instrumentation support into the general execution context; remove separate Instrumentation interface and implementation
- Generalize the ?tagging? mechanism for extensibility: the enum PhylumTag is now an interface, and the standard tags moved to the new enum StandardTag
- A new ?trap? mechanism interrupts program execution at any probed node holding a specified PhylumTag; this replaces some other special-purpose code.
- Refine several interface by factoring out callback methods and simplifying collaboration among key implementation classes.
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
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date | Mon, 12 May 2014 20:17:25 -0700 |
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1 /* |
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2 * Copyright (c) 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. |
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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.instrument; |
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26 |
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27 /** |
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28 * A somewhat language-agnostic set of phylum categories, suitable for conventional imperative |
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29 * languages, and is being developed incrementally. |
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30 * <p> |
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31 * The need for alternative sets of tags is likely to arise, perhaps for other families of languages |
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32 * (for example for mostly expression-oriented languages) or even for specific languages. |
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33 * <p> |
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34 * <strong>Disclaimer:</strong> experimental interface under development. |
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35 * |
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36 * @see Probe |
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37 * @see Wrapper |
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38 */ |
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39 public enum StandardTag implements PhylumTag { |
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40 |
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41 /** |
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42 * Marker for a variable assignment. |
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43 */ |
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44 ASSIGNMENT("assignment", "a variable assignment"), |
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45 |
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46 /** |
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47 * Marker for a call site. |
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48 */ |
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49 CALL("call", "a method/procedure call site"), |
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50 |
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51 /** |
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52 * Marker for a location where a guest language exception is about to be thrown. |
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53 */ |
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54 THROW("throw", "creator of an exception"), |
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55 |
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56 /** |
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57 * Marker for a location where ordinary "stepping" should halt. |
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58 */ |
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59 STATEMENT("statement", "basic unit of the language, suitable for \"stepping\" in a debugger"); |
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60 |
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61 private final String name; |
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62 private final String description; |
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63 |
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64 private StandardTag(String name, String description) { |
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65 this.name = name; |
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66 this.description = description; |
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67 } |
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68 |
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69 public String getName() { |
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70 return name; |
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71 } |
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72 |
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73 public String getDescription() { |
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74 return description; |
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75 } |
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76 |
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77 } |