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annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/instrument/PhylumTag.java @ 15279:0c6d8a08e31b

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Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
author Michael Van De Vanter <michael.van.de.vanter@oracle.com>
date Sun, 20 Apr 2014 20:37:27 -0700
parents
children bb9473723904
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15279
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents:
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1 /*
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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4 *
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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5 * This code is free software; you can redistribute it and/or modify it
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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6 * under the terms of the GNU General Public License version 2 only, as
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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7 * published by the Free Software Foundation. Oracle designates this
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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8 * particular file as subject to the "Classpath" exception as provided
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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9 * by Oracle in the LICENSE file that accompanied this code.
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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10 *
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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11 * This code is distributed in the hope that it will be useful, but WITHOUT
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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14 * version 2 for more details (a copy is included in the LICENSE file that
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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15 * accompanied this code).
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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16 *
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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17 * You should have received a copy of the GNU General Public License version
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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18 * 2 along with this work; if not, write to the Free Software Foundation,
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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20 *
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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22 * or visit www.oracle.com if you need additional information or have any
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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23 * questions.
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
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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 * Program element "tags" that define user-visible behavior for debugging and other simple tools.
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
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29 * These categories (<em>phyla</em>) should correspond to program structures that are meaningful to
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
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30 * a guest language programmer.
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31 * <p>
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
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32 * An untagged Truffle node should be understood as an artifact of the guest language implementation
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
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33 * and should not be visible to the user of a guest language programming tool. Nodes may also have
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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34 * more than one tag, for example a variable assignment that is also a statement. Finally, the
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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35 * assignment of tags to nodes could depending on the use-case of whatever tool is using them.
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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36 * <p>
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
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37 * This is a somewhat language-agnostic set of phyla, suitable for conventional imperative
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
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38 * languages, and is being developed incrementally.
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
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39 * <p>
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40 * The need for alternative sets of tags is likely to arise, perhaps for other families of languages
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41 * (for example for mostly expression-oriented languages) or even for specific languages.
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42 * <p>
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43 * These are listed alphabetically so that listing from some collection classes will come out in
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44 * that order.
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45 * <p>
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46 * <strong>Disclaimer:</strong> experimental interface under development.
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47 */
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48 public enum PhylumTag {
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49
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50 /**
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51 * Marker for a variable assignment.
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52 */
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53 ASSIGNMENT,
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54
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55 /**
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56 * Marker for a call site.
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57 */
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58 CALL,
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59
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60 /**
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61 * Marker for a location where a guest language exception is about to be thrown.
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62 */
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63 THROW,
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64
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65 /**
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66 * Marker for a location where ordinary "stepping" should halt.
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67 */
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68 STATEMENT;
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69
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70 }