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annotate truffle/com.oracle.truffle.api/src/com/oracle/truffle/api/instrument/SyntaxTag.java @ 21972:ff6f34159b8a

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Providing package-info for most of API packages. Feel free to provide your package-info.java for anything that has API in its name.
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Tue, 23 Jun 2015 12:44:41 +0200
parents 9c8c0937da41
children 1348cc2e084e
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1 /*
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2 * Copyright (c) 2014, 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 * 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
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
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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
0c6d8a08e31b Truffle: Major cleanup and extension of the Truffle Instrumentation framework in com.oracle.truffle.api
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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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27 /**
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28 * Program element "tags", presumed to be singletons (best implemented as enums) that define
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29 * user-visible behavior for debugging and other simple tools. These categories should correspond to
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30 * program structures, for example "statement" and "assignment", that are meaningful
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31 * ("human-sensible") to guest language programmers.
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32 * <p>
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33 * An untagged Truffle node should be understood as an artifact of the guest language implementation
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34 * and should not be visible to guest language programmers. Nodes may also have more than one tag,
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35 * for example a variable assignment that is also a statement. Finally, the assignment of tags to
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36 * nodes could depending on the use-case of whatever tool is using them.
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37 *
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38 * @see Probe
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39 * @see StandardSyntaxTag
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40 */
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41 public interface SyntaxTag {
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43 /**
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44 * Human-friendly name of guest language program elements belonging to the category, e.g.
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45 * "statement".
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46 */
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47 String name();
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49 /**
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50 * Criteria and example uses for the tag.
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51 */
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52 String getDescription();
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54 }