annotate truffle/com.oracle.truffle.api/src/com/oracle/truffle/api/instrument/InstrumentationNode.java @ 22157:dc83cc1f94f2

Using fully qualified imports
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Wed, 16 Sep 2015 11:33:22 +0200
parents 9c8c0937da41
children c896a8e70777
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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
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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 import com.oracle.truffle.api.frame.VirtualFrame;
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28 import com.oracle.truffle.api.nodes.Node;
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29
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30 /**
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31 * A marker interface for Truffle {@linkplain Node nodes} that internally implement the
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32 * <em>Instrumentation Framework</em>. Such nodes should not be part of any Guest Language execution
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33 * semantics, and should in general not be visible to ordinary Instrumentation clients.
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34 */
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35 public interface InstrumentationNode {
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36
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37 /**
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38 * A short description of the particular role played by the node, intended to support debugging.
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39 */
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40 String instrumentationInfo();
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41
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42 /**
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43 * Events that propagate through the {@linkplain InstrumentationNode implementation nodes} of
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44 * the Instrumentation Framework, not visible in this form to Instrumentation clients.
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45 */
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46 interface TruffleEvents {
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47
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48 /**
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49 * An AST node's execute method is about to be called.
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50 */
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51 void enter(Node node, VirtualFrame vFrame);
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52
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53 /**
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54 * An AST Node's {@code void}-valued execute method has just returned.
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55 */
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56 void returnVoid(Node node, VirtualFrame vFrame);
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57
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58 /**
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59 * An AST Node's execute method has just returned a value (boxed if primitive).
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60 */
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61 void returnValue(Node node, VirtualFrame vFrame, Object result);
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62
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63 /**
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64 * An AST Node's execute method has just thrown an exception.
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65 */
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66 void returnExceptional(Node node, VirtualFrame vFrame, Exception exception);
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67 }
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68 }