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annotate truffle/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/instrument/SLStandardASTProber.java @ 21951:9c8c0937da41

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Moving all sources into truffle subdirectory
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Wed, 17 Jun 2015 10:58:08 +0200
parents graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/instrument/SLStandardASTProber.java@894f82515e38
children c07e64ecb528
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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.
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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.instrument;
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25 import static com.oracle.truffle.api.instrument.StandardSyntaxTag.*;
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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.sl.nodes.*;
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30 import com.oracle.truffle.sl.nodes.controlflow.*;
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31 import com.oracle.truffle.sl.nodes.local.*;
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33 /**
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34 * A visitor which traverses a completely parsed Simple AST (presumed not yet executed) and enables
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35 * instrumentation at a few standard kinds of nodes.
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36 */
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37 public class SLStandardASTProber implements NodeVisitor, ASTProber {
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39 /**
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40 * {@inheritDoc}
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41 * <p>
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42 * Instruments and tags all relevant {@link SLStatementNode}s and {@link SLExpressionNode}s.
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43 * Currently, only SLStatementNodes that are not SLExpressionNodes are tagged as statements.
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44 */
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45 public boolean visit(Node node) {
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46
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47 if (!(node instanceof InstrumentationNode) && node instanceof SLStatementNode && node.getParent() != null && node.getSourceSection() != null) {
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48 // All SL nodes are instrumentable, but treat expressions specially
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49
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50 if (node instanceof SLExpressionNode) {
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51 SLExpressionNode expressionNode = (SLExpressionNode) node;
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52 Probe probe = expressionNode.probe();
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53 if (node instanceof SLWriteLocalVariableNode) {
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54 probe.tagAs(STATEMENT, null);
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55 probe.tagAs(ASSIGNMENT, null);
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56 }
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57 } else {
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58 SLStatementNode statementNode = (SLStatementNode) node;
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59 Probe probe = statementNode.probe();
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60 probe.tagAs(STATEMENT, null);
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61 if (node instanceof SLWhileNode) {
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62 probe.tagAs(START_LOOP, null);
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63 }
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64 }
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65 }
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66 return true;
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67 }
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68
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69 public void probeAST(Node node) {
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70 node.accept(this);
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71 }
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72 }