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annotate graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/SLStatementNode.java @ 16880:7661cc464239

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Truffle/Instrumentation: Added Instrumentable interface and LineLocationToSourceSections map SL: Updated implementation to use new Instrumentable interface
author David Piorkowski <david.piorkowski@oracle.com>
date Thu, 21 Aug 2014 13:28:22 -0700
parents 618d92152d3c
children b879421229db
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1 /*
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2 * Copyright (c) 2012, 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.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.truffle.sl.nodes;
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24
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25 import com.oracle.truffle.api.*;
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26 import com.oracle.truffle.api.frame.*;
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27 import com.oracle.truffle.api.instrument.*;
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28 import com.oracle.truffle.api.nodes.*;
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29 import com.oracle.truffle.api.source.*;
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30 import com.oracle.truffle.sl.nodes.instrument.*;
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31 import com.oracle.truffle.sl.runtime.*;
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32
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33 /**
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34 * The base class of all Truffle nodes for SL. All nodes (even expressions) can be used as
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35 * statements, i.e., without returning a value. The {@link VirtualFrame} provides access to the
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36 * local variables.
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37 */
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38 @NodeInfo(language = "Simple Language", description = "The abstract base node for all statements")
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39 public abstract class SLStatementNode extends Node implements Instrumentable {
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40
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41 public SLStatementNode(SourceSection src) {
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42 super(src);
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43 }
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44
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45 /**
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46 * Execute this node as as statement, where no return value is necessary.
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47 */
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48 public abstract void executeVoid(VirtualFrame frame);
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49
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50 public SLStatementNode getNonWrapperNode() {
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51 return this;
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52 }
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54 @Override
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55 public Probe probe(ExecutionContext context) {
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56 Node parent = getParent();
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57
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58 if (parent == null)
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59 throw new IllegalStateException("Cannot probe a node without a parent");
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61 if (parent instanceof SLStatementWrapper)
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62 return ((SLStatementWrapper) parent).getProbe();
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64 SLStatementWrapper wrapper = new SLStatementWrapper((SLContext) context, this);
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65 this.replace(wrapper);
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66 wrapper.insertChild();
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67 return wrapper.getProbe();
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68 }
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69 }