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annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/instrument/impl/LineLocationToProbeCollectionMap.java @ 17035:7b2e6171f455

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LineLocationToProbeCollectionMap: add forget method
author Gilles Duboscq <duboscq@ssw.jku.at>
date Wed, 03 Sep 2014 12:01:14 +0200
parents a1427e40deaf
children c88ab4f1f04a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (c) 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. 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.impl;
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26
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27 import java.io.*;
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28 import java.util.*;
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29
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30 import com.oracle.truffle.api.instrument.*;
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31 import com.oracle.truffle.api.source.*;
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32
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33 /**
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34 * A mapping from {@link LineLocation} (a line number in a specific piece of {@link Source} code) to
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35 * a collection of {@link Probe}s whose associated {@link SourceSection} starts on that line.
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36 */
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37 public class LineLocationToProbeCollectionMap implements ProbeListener {
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38
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39 private static final boolean TRACE = false;
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40 private static final PrintStream OUT = System.out;
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41
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42 /**
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43 * Map: Source line ==> probes associated with source sections starting on the line.
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44 */
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45 private final Map<LineLocation, Collection<Probe>> lineToProbesMap = new HashMap<>();
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46
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47 public LineLocationToProbeCollectionMap() {
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48 }
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49
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50 public void newProbeInserted(SourceSection source, Probe probe) {
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51 if (source != null && !(source instanceof NullSourceSection)) {
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52 final LineLocation lineLocation = source.getLineLocation();
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53 if (TRACE) {
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54 OUT.println("LineLocationToProbeCollectionMap: adding " + lineLocation + " Probe=" + probe);
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55 }
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56 this.addProbeToLine(lineLocation, probe);
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57 }
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58 }
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59
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60 public void probeTaggedAs(Probe probe, SyntaxTag tag) {
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61 // This map ignores tags
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62 }
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63
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64 /**
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65 * Returns the {@link Probe}, if any, associated with source that starts on a specified line; if
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66 * there are more than one, return the one with the first starting character location.
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67 */
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68 public Probe findLineProbe(LineLocation lineLocation) {
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69 Probe probe = null;
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70 final Collection<Probe> probes = getProbesAtLine(lineLocation);
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71 for (Probe probeOnLine : probes) {
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72 if (probe == null) {
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73 probe = probeOnLine;
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74 } else if (probeOnLine.getSourceLocation().getCharIndex() < probe.getSourceLocation().getCharIndex()) {
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75 probe = probeOnLine;
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76 }
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77 }
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78 return probe;
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79 }
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80
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81 /**
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82 * Records creation of a probe whose associated source starts on the given line.
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83 * <p>
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84 * If the line already exists in the internal {@link #lineToProbesMap}, this probe will be added
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85 * to the existing collection. If no line already exists in the internal map, then a new key is
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86 * added along with a new collection containing the probe.
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87 * <p>
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88 * This class requires that each added line/probe pair hasn't been previously added. However,
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89 * attaching the same probe to a new line location is allowed.
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90 *
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91 * @param line The {@link LineLocation} to attach the probe to.
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92 * @param probe The {@link Probe} to attach for that line location.
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93 */
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94 protected void addProbeToLine(LineLocation line, Probe probe) {
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95
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96 if (!lineToProbesMap.containsKey(line)) {
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97 // Key does not exist, add new probe list
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98 final ArrayList<Probe> newProbeList = new ArrayList<>(2);
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99 newProbeList.add(probe);
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100 lineToProbesMap.put(line, newProbeList);
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101 } else {
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102 // Probe list exists, add to existing
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103 final Collection<Probe> existingProbeList = lineToProbesMap.get(line);
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104 assert !existingProbeList.contains(probe);
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105 existingProbeList.add(probe);
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106 }
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107 }
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108
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109 /**
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110 *
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111 * Returns a collection of {@link Probe}s whose associated source begins at the given
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112 * {@link LineLocation}, an empty list if none.
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113 *
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114 * @param line The line to check.
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115 * @return A collection of probes at the given line.
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116 */
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117 public Collection<Probe> getProbesAtLine(LineLocation line) {
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118 Collection<Probe> probeList = lineToProbesMap.get(line);
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119
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120 if (probeList == null) {
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121 return Collections.emptyList();
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122 }
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123 return probeList;
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124 }
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125
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126 /**
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127 * Convenience method to get probes according to a int line number. Returns a collection of
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128 * {@link Probe}s at the given line number, an empty list if none.
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129 *
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130 * @param lineNumber The line number to check.
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131 * @return A collection of probes at the given line.
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132 */
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133 public Collection<Probe> getProbesAtLineNumber(int lineNumber) {
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134
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents: 16881
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135 final Set<LineLocation> keySet = lineToProbesMap.keySet();
a1427e40deaf Truffle/Instrumentation: some Javadoc revistions; minor code cleanups; remove one redundant operation; add tracing to the LineLocation maps.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents: 16881
diff changeset
136 if (keySet.size() == 0) {
a1427e40deaf Truffle/Instrumentation: some Javadoc revistions; minor code cleanups; remove one redundant operation; add tracing to the LineLocation maps.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents: 16881
diff changeset
137 return Collections.emptyList();
a1427e40deaf Truffle/Instrumentation: some Javadoc revistions; minor code cleanups; remove one redundant operation; add tracing to the LineLocation maps.
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parents: 16881
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138 }
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parents: 16881
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139
a1427e40deaf Truffle/Instrumentation: some Javadoc revistions; minor code cleanups; remove one redundant operation; add tracing to the LineLocation maps.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents: 16881
diff changeset
140 ArrayList<Probe> probes = new ArrayList<>();
a1427e40deaf Truffle/Instrumentation: some Javadoc revistions; minor code cleanups; remove one redundant operation; add tracing to the LineLocation maps.
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents: 16881
diff changeset
141 for (LineLocation line : keySet) {
16880
7661cc464239 Truffle/Instrumentation: Added Instrumentable interface and LineLocationToSourceSections map
David Piorkowski <david.piorkowski@oracle.com>
parents: 16857
diff changeset
142 if (line.getLineNumber() == lineNumber)
7661cc464239 Truffle/Instrumentation: Added Instrumentable interface and LineLocationToSourceSections map
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parents: 16857
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143 probes.addAll(lineToProbesMap.get(line));
7661cc464239 Truffle/Instrumentation: Added Instrumentable interface and LineLocationToSourceSections map
David Piorkowski <david.piorkowski@oracle.com>
parents: 16857
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144 }
7661cc464239 Truffle/Instrumentation: Added Instrumentable interface and LineLocationToSourceSections map
David Piorkowski <david.piorkowski@oracle.com>
parents: 16857
diff changeset
145
7661cc464239 Truffle/Instrumentation: Added Instrumentable interface and LineLocationToSourceSections map
David Piorkowski <david.piorkowski@oracle.com>
parents: 16857
diff changeset
146 return probes;
7661cc464239 Truffle/Instrumentation: Added Instrumentable interface and LineLocationToSourceSections map
David Piorkowski <david.piorkowski@oracle.com>
parents: 16857
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147 }
17035
7b2e6171f455 LineLocationToProbeCollectionMap: add forget method
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 16961
diff changeset
148
7b2e6171f455 LineLocationToProbeCollectionMap: add forget method
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 16961
diff changeset
149 public void forget(Source source) {
7b2e6171f455 LineLocationToProbeCollectionMap: add forget method
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 16961
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150 final Set<LineLocation> mappedLines = lineToProbesMap.keySet();
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Gilles Duboscq <duboscq@ssw.jku.at>
parents: 16961
diff changeset
151 if (mappedLines.size() > 0) {
7b2e6171f455 LineLocationToProbeCollectionMap: add forget method
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 16961
diff changeset
152 List<LineLocation> forgetLines = new ArrayList<>();
7b2e6171f455 LineLocationToProbeCollectionMap: add forget method
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 16961
diff changeset
153 for (LineLocation line : mappedLines) {
7b2e6171f455 LineLocationToProbeCollectionMap: add forget method
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 16961
diff changeset
154 if (line.getSource().equals(source)) {
7b2e6171f455 LineLocationToProbeCollectionMap: add forget method
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 16961
diff changeset
155 forgetLines.add(line);
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Gilles Duboscq <duboscq@ssw.jku.at>
parents: 16961
diff changeset
156 }
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Gilles Duboscq <duboscq@ssw.jku.at>
parents: 16961
diff changeset
157 }
7b2e6171f455 LineLocationToProbeCollectionMap: add forget method
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 16961
diff changeset
158 for (LineLocation line : forgetLines) {
7b2e6171f455 LineLocationToProbeCollectionMap: add forget method
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 16961
diff changeset
159 lineToProbesMap.remove(line);
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Gilles Duboscq <duboscq@ssw.jku.at>
parents: 16961
diff changeset
160 }
7b2e6171f455 LineLocationToProbeCollectionMap: add forget method
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 16961
diff changeset
161 }
7b2e6171f455 LineLocationToProbeCollectionMap: add forget method
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 16961
diff changeset
162 }
16856
7833417c8172 Changes to Instrumentation
David Piorkowski <david.piorkowski@oracle.com>
parents:
diff changeset
163 }