Mercurial > hg > truffle
annotate truffle/com.oracle.truffle.api/src/com/oracle/truffle/api/debug/Debugger.java @ 22548:6b76a24fffbd default tip
Use all variables: a, b, u,v and x, y
author | Jaroslav Tulach <jaroslav.tulach@oracle.com> |
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date | Thu, 14 Jan 2016 14:20:57 +0100 |
parents | be8a3334434d |
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rev | line source |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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1 /* |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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2 * Copyright (c) 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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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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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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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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6 * under the terms of the GNU General Public License version 2 only, as |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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7 * published by the Free Software Foundation. Oracle designates this |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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8 * particular file as subject to the "Classpath" exception as provided |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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9 * by Oracle in the LICENSE file that accompanied this code. |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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10 * |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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14 * version 2 for more details (a copy is included in the LICENSE file that |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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15 * accompanied this code). |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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16 * |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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17 * You should have received a copy of the GNU General Public License version |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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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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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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22 * or visit www.oracle.com if you need additional information or have any |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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23 * questions. |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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24 */ |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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25 package com.oracle.truffle.api.debug; |
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26 |
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27 import java.io.Closeable; |
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28 import java.io.IOException; |
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29 import java.io.PrintStream; |
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30 import java.util.ArrayList; |
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31 import java.util.Collection; |
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32 import java.util.Collections; |
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33 import java.util.List; |
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34 |
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35 import com.oracle.truffle.api.CompilerDirectives.TruffleBoundary; |
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36 import com.oracle.truffle.api.Truffle; |
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37 import com.oracle.truffle.api.TruffleLanguage; |
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38 import com.oracle.truffle.api.frame.FrameInstance; |
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39 import com.oracle.truffle.api.frame.FrameInstanceVisitor; |
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40 import com.oracle.truffle.api.frame.MaterializedFrame; |
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41 import com.oracle.truffle.api.frame.VirtualFrame; |
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42 import com.oracle.truffle.api.frame.FrameInstance.FrameAccess; |
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43 import com.oracle.truffle.api.impl.Accessor; |
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44 import com.oracle.truffle.api.instrument.Instrumenter; |
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45 import com.oracle.truffle.api.instrument.KillException; |
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46 import com.oracle.truffle.api.instrument.Probe; |
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47 import com.oracle.truffle.api.instrument.StandardAfterInstrumentListener; |
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48 import com.oracle.truffle.api.instrument.StandardBeforeInstrumentListener; |
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49 import com.oracle.truffle.api.instrument.StandardSyntaxTag; |
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50 import com.oracle.truffle.api.instrument.SyntaxTag; |
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51 import com.oracle.truffle.api.instrument.TagInstrument; |
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52 import com.oracle.truffle.api.nodes.Node; |
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53 import com.oracle.truffle.api.source.LineLocation; |
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54 import com.oracle.truffle.api.source.Source; |
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55 import com.oracle.truffle.api.source.SourceSection; |
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56 |
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57 /** |
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58 * Represents debugging related state of a {@link com.oracle.truffle.api.vm.PolyglotEngine}. |
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59 * Instance of this class is delivered via {@link SuspendedEvent#getDebugger()} and |
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60 * {@link ExecutionEvent#getDebugger()} events, once {@link com.oracle.truffle.api.debug debugging |
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61 * is turned on}. |
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62 */ |
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63 @SuppressWarnings("javadoc") |
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64 public final class Debugger { |
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65 |
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66 private static final boolean TRACE = false; |
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67 private static final String TRACE_PREFIX = "Debugger: "; |
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68 |
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69 private static final PrintStream OUT = System.out; |
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70 |
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71 private static final SyntaxTag STEPPING_TAG = StandardSyntaxTag.STATEMENT; |
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72 private static final SyntaxTag CALL_TAG = StandardSyntaxTag.CALL; |
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73 |
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74 private static void trace(String format, Object... args) { |
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75 if (TRACE) { |
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76 OUT.println(TRACE_PREFIX + String.format(format, args)); |
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77 } |
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78 } |
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79 |
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80 private final Instrumenter instrumenter; |
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81 private final Object vm; |
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82 private Source lastSource; |
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83 |
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84 interface BreakpointCallback { |
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85 |
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86 /** |
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87 * Passes control to the debugger with execution suspended. |
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88 */ |
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89 void haltedAt(Node astNode, MaterializedFrame mFrame, String haltReason); |
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90 } |
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91 |
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92 interface WarningLog { |
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93 |
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94 /** |
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95 * Logs a warning that is kept until the start of the next execution. |
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96 */ |
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97 void addWarning(String warning); |
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98 } |
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99 |
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100 private final BreakpointCallback breakpointCallback; |
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101 private final WarningLog warningLog; |
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102 |
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103 /** |
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104 * Implementation of line-oriented breakpoints. |
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105 */ |
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106 private final LineBreakpointFactory lineBreaks; |
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107 |
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108 /** |
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109 * Implementation of tag-oriented breakpoints. |
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110 */ |
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111 private final TagBreakpointFactory tagBreaks; |
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112 |
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113 /** |
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114 * Head of the stack of executions. |
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115 */ |
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116 private DebugExecutionContext debugContext; |
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117 |
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118 Debugger(Object vm, Instrumenter instrumenter) { |
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119 this.vm = vm; |
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120 this.instrumenter = instrumenter; |
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121 Source.setFileCaching(true); |
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122 |
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123 // Initialize execution context stack |
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124 debugContext = new DebugExecutionContext(null, null, 0); |
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125 debugContext.setStrategy(0, new Continue()); |
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126 debugContext.contextTrace("START EXEC DEFAULT"); |
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127 |
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128 breakpointCallback = new BreakpointCallback() { |
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129 |
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130 @TruffleBoundary |
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131 public void haltedAt(Node astNode, MaterializedFrame mFrame, String haltReason) { |
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132 debugContext.halt(astNode, mFrame, true, haltReason); |
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133 } |
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134 }; |
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135 |
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136 warningLog = new WarningLog() { |
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137 |
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138 public void addWarning(String warning) { |
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139 assert debugContext != null; |
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140 debugContext.logWarning(warning); |
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141 } |
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142 }; |
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143 |
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144 this.lineBreaks = new LineBreakpointFactory(this, breakpointCallback, warningLog); |
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145 this.tagBreaks = new TagBreakpointFactory(this, breakpointCallback, warningLog); |
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146 } |
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147 |
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148 /** |
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149 * Sets a breakpoint to halt at a source line. |
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150 * |
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151 * @param ignoreCount number of hits to ignore before halting |
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152 * @param lineLocation where to set the breakpoint (source, line number) |
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153 * @param oneShot breakpoint disposes itself after fist hit, if {@code true} |
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154 * @return a new breakpoint, initially enabled |
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155 * @throws IOException if the breakpoint can not be set. |
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156 */ |
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157 @TruffleBoundary |
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158 public Breakpoint setLineBreakpoint(int ignoreCount, LineLocation lineLocation, boolean oneShot) throws IOException { |
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159 return lineBreaks.create(ignoreCount, lineLocation, oneShot); |
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160 } |
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161 |
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162 /** |
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163 * Sets a breakpoint to halt at any node holding a specified {@link SyntaxTag}. |
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164 * |
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165 * @param ignoreCount number of hits to ignore before halting |
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166 * @param oneShot if {@code true} breakpoint removes it self after a hit |
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167 * @return a new breakpoint, initially enabled |
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168 * @throws IOException if the breakpoint already set |
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169 */ |
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170 @TruffleBoundary |
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171 public Breakpoint setTagBreakpoint(int ignoreCount, SyntaxTag tag, boolean oneShot) throws IOException { |
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172 return tagBreaks.create(ignoreCount, tag, oneShot); |
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173 } |
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174 |
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175 /** |
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176 * Gets all existing breakpoints, whatever their status, in natural sorted order. Modification |
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177 * save. |
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178 */ |
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179 @TruffleBoundary |
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180 public Collection<Breakpoint> getBreakpoints() { |
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181 final Collection<Breakpoint> result = new ArrayList<>(); |
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182 result.addAll(lineBreaks.getAll()); |
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183 result.addAll(tagBreaks.getAll()); |
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184 return result; |
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185 } |
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186 |
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187 /** |
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188 * Prepare to execute in Continue mode when guest language program execution resumes. In this |
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189 * mode: |
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190 * <ul> |
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191 * <li>Execution will continue until either: |
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192 * <ol> |
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193 * <li>execution arrives at a node to which an enabled breakpoint is attached, |
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194 * <strong>or:</strong></li> |
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195 * <li>execution completes.</li> |
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196 * </ol> |
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197 * </ul> |
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198 */ |
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199 @TruffleBoundary |
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200 void prepareContinue(int depth) { |
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201 debugContext.setStrategy(depth, new Continue()); |
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202 } |
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203 |
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204 /** |
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205 * Prepare to execute in StepInto mode when guest language program execution resumes. In this |
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206 * mode: |
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207 * <ul> |
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208 * <li>User breakpoints are disabled.</li> |
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209 * <li>Execution will continue until either: |
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210 * <ol> |
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211 * <li>execution arrives at a node with the tag {@linkplain StandardSyntaxTag#STATEMENT |
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212 * STATMENT}, <strong>or:</strong></li> |
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213 * <li>execution completes.</li> |
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214 * </ol> |
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215 * <li>StepInto mode persists only through one resumption (i.e. {@code stepIntoCount} steps), |
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216 * and reverts by default to Continue mode.</li> |
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217 * </ul> |
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218 * |
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219 * @param stepCount the number of times to perform StepInto before halting |
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220 * @throws IllegalArgumentException if the specified number is {@code <= 0} |
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221 */ |
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222 @TruffleBoundary |
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223 void prepareStepInto(int stepCount) { |
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224 if (stepCount <= 0) { |
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225 throw new IllegalArgumentException(); |
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226 } |
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227 debugContext.setStrategy(new StepInto(stepCount)); |
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228 } |
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229 |
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230 /** |
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231 * Prepare to execute in StepOut mode when guest language program execution resumes. In this |
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232 * mode: |
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233 * <ul> |
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234 * <li>User breakpoints are enabled.</li> |
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235 * <li>Execution will continue until either: |
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236 * <ol> |
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237 * <li>execution arrives at the nearest enclosing call site on the stack, <strong>or</strong></li> |
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238 * <li>execution completes.</li> |
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239 * </ol> |
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240 * <li>StepOut mode persists only through one resumption, and reverts by default to Continue |
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241 * mode.</li> |
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242 * </ul> |
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243 */ |
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244 @TruffleBoundary |
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245 void prepareStepOut() { |
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246 debugContext.setStrategy(new StepOut()); |
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247 } |
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248 |
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249 /** |
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250 * Prepare to execute in StepOver mode when guest language program execution resumes. In this |
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251 * mode: |
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252 * <ul> |
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253 * <li>Execution will continue until either: |
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254 * <ol> |
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255 * <li>execution arrives at a node with the tag {@linkplain StandardSyntaxTag#STATEMENT |
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256 * STATEMENT} when not nested in one or more function/method calls, <strong>or:</strong></li> |
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257 * <li>execution arrives at a node to which a breakpoint is attached and when nested in one or |
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258 * more function/method calls, <strong>or:</strong></li> |
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259 * <li>execution completes.</li> |
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260 * </ol> |
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261 * <li>StepOver mode persists only through one resumption (i.e. {@code stepOverCount} steps), |
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262 * and reverts by default to Continue mode.</li> |
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263 * </ul> |
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264 * |
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265 * @param stepCount the number of times to perform StepInto before halting |
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266 * @throws IllegalArgumentException if the specified number is {@code <= 0} |
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267 */ |
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268 @TruffleBoundary |
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269 void prepareStepOver(int stepCount) { |
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270 if (stepCount <= 0) { |
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271 throw new IllegalArgumentException(); |
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272 } |
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273 debugContext.setStrategy(new StepOver(stepCount)); |
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274 } |
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275 |
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276 Instrumenter getInstrumenter() { |
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277 return instrumenter; |
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278 } |
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279 |
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280 /** |
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281 * A mode of user navigation from a current code location to another, e.g "step in" vs. |
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282 * "step over". |
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283 */ |
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284 private abstract class StepStrategy { |
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285 |
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286 private DebugExecutionContext context; |
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287 protected final String strategyName; |
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288 |
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289 protected StepStrategy() { |
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290 this.strategyName = getClass().getSimpleName(); |
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291 } |
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292 |
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293 final String getName() { |
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294 return strategyName; |
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295 } |
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296 |
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297 /** |
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298 * Reconfigure the debugger so that when execution continues the program will halt at the |
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299 * location specified by this strategy. |
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300 */ |
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301 final void enable(DebugExecutionContext c, int stackDepth) { |
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302 this.context = c; |
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303 setStrategy(stackDepth); |
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304 } |
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305 |
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306 /** |
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307 * Return the debugger to the default navigation mode. |
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308 */ |
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309 final void disable() { |
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310 unsetStrategy(); |
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311 } |
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312 |
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313 @TruffleBoundary |
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314 final void halt(Node astNode, MaterializedFrame mFrame, boolean before) { |
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315 context.halt(astNode, mFrame, before, this.getClass().getSimpleName()); |
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316 } |
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317 |
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318 @TruffleBoundary |
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319 final void replaceStrategy(StepStrategy newStrategy) { |
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320 context.setStrategy(newStrategy); |
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321 } |
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322 |
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323 @TruffleBoundary |
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324 protected final void strategyTrace(String action, String format, Object... args) { |
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325 if (TRACE) { |
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326 context.contextTrace("%s (%s) %s", action, strategyName, String.format(format, args)); |
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327 } |
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328 } |
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329 |
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330 @TruffleBoundary |
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331 protected final void suspendUserBreakpoints() { |
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332 lineBreaks.setActive(false); |
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333 tagBreaks.setActive(false); |
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334 } |
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335 |
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336 @SuppressWarnings("unused") |
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337 protected final void restoreUserBreakpoints() { |
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338 lineBreaks.setActive(true); |
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339 tagBreaks.setActive(true); |
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340 } |
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341 |
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342 /** |
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343 * Reconfigure the debugger so that when execution continues, it will do so using this mode |
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344 * of navigation. |
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345 */ |
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346 protected abstract void setStrategy(int stackDepth); |
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347 |
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348 /** |
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349 * Return to the debugger to the default mode of navigation. |
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350 */ |
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351 protected abstract void unsetStrategy(); |
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352 } |
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353 |
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354 /** |
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355 * Strategy: the null stepping strategy. |
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356 * <ul> |
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357 * <li>User breakpoints are enabled.</li> |
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358 * <li>Execution continues until either: |
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359 * <ol> |
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360 * <li>execution arrives at a node with attached user breakpoint, <strong>or:</strong></li> |
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361 * <li>execution completes.</li> |
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362 * </ol> |
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363 * </ul> |
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364 */ |
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365 private final class Continue extends StepStrategy { |
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366 |
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367 @Override |
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368 protected void setStrategy(int stackDepth) { |
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369 } |
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370 |
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371 @Override |
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372 protected void unsetStrategy() { |
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373 } |
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374 } |
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375 |
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376 /** |
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377 * Strategy: per-statement stepping. |
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378 * <ul> |
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379 * <li>User breakpoints are enabled.</li> |
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380 * <li>Execution continues until either: |
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381 * <ol> |
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382 * <li>execution <em>arrives</em> at a STATEMENT node, <strong>or:</strong></li> |
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383 * <li>execution <em>returns</em> to a CALL node and the call stack is smaller then when |
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384 * execution started, <strong>or:</strong></li> |
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385 * <li>execution completes.</li> |
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386 * </ol> |
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387 * </ul> |
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388 * |
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389 * @see Debugger#prepareStepInto(int) |
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390 */ |
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391 private final class StepInto extends StepStrategy { |
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392 private TagInstrument beforeTagInstrument; |
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393 private TagInstrument afterTagInstrument; |
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394 private int unfinishedStepCount; |
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395 |
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396 StepInto(int stepCount) { |
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397 super(); |
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398 this.unfinishedStepCount = stepCount; |
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399 } |
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400 |
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401 @Override |
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402 protected void setStrategy(final int stackDepth) { |
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403 |
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404 beforeTagInstrument = instrumenter.attach(STEPPING_TAG, new StandardBeforeInstrumentListener() { |
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405 @TruffleBoundary |
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406 @Override |
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407 public void onEnter(Probe probe, Node node, VirtualFrame vFrame) { |
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408 // HALT: just before statement |
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409 --unfinishedStepCount; |
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410 strategyTrace("HALT BEFORE", "unfinished steps=%d", unfinishedStepCount); |
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411 // Should run in fast path |
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412 if (unfinishedStepCount <= 0) { |
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413 halt(node, vFrame.materialize(), true); |
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414 } |
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415 strategyTrace("RESUME BEFORE", ""); |
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416 } |
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417 }, "Debugger StepInto"); |
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418 |
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419 afterTagInstrument = instrumenter.attach(CALL_TAG, new StandardAfterInstrumentListener() { |
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420 |
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421 public void onReturnVoid(Probe probe, Node node, VirtualFrame vFrame) { |
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422 doHalt(node, vFrame.materialize()); |
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423 } |
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424 |
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425 public void onReturnValue(Probe probe, Node node, VirtualFrame vFrame, Object result) { |
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426 doHalt(node, vFrame.materialize()); |
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427 } |
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428 |
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429 public void onReturnExceptional(Probe probe, Node node, VirtualFrame vFrame, Throwable exception) { |
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430 doHalt(node, vFrame.materialize()); |
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431 } |
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432 |
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433 @TruffleBoundary |
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434 private void doHalt(Node node, MaterializedFrame mFrame) { |
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435 --unfinishedStepCount; |
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436 strategyTrace(null, "HALT AFTER unfinished steps=%d", unfinishedStepCount); |
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437 if (currentStackDepth() < stackDepth) { |
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438 // HALT: just "stepped out" |
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439 if (unfinishedStepCount <= 0) { |
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440 halt(node, mFrame, false); |
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441 } |
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442 } |
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443 strategyTrace("RESUME AFTER", ""); |
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444 } |
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445 }, "Debugger StepInto"); |
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446 } |
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447 |
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448 @Override |
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449 protected void unsetStrategy() { |
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450 beforeTagInstrument.dispose(); |
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451 afterTagInstrument.dispose(); |
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452 } |
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453 } |
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454 |
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455 /** |
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456 * Strategy: execution to nearest enclosing call site. |
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457 * <ul> |
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458 * <li>User breakpoints are enabled.</li> |
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459 * <li>Execution continues until either: |
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460 * <ol> |
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461 * <li>execution arrives at a node with attached user breakpoint, <strong>or:</strong></li> |
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462 * <li>execution <em>returns</em> to a CALL node and the call stack is smaller than when |
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463 * execution started, <strong>or:</strong></li> |
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464 * <li>execution completes.</li> |
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465 * </ol> |
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466 * </ul> |
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467 * |
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468 * @see Debugger#prepareStepOut() |
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469 */ |
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470 private final class StepOut extends StepStrategy { |
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471 |
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472 private TagInstrument afterTagInstrument; |
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473 |
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474 @Override |
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475 protected void setStrategy(final int stackDepth) { |
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476 |
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477 afterTagInstrument = instrumenter.attach(CALL_TAG, new StandardAfterInstrumentListener() { |
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478 |
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479 public void onReturnVoid(Probe probe, Node node, VirtualFrame vFrame) { |
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480 doHalt(node, vFrame.materialize()); |
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481 } |
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482 |
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483 public void onReturnValue(Probe probe, Node node, VirtualFrame vFrame, Object result) { |
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484 doHalt(node, vFrame.materialize()); |
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485 } |
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486 |
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487 public void onReturnExceptional(Probe probe, Node node, VirtualFrame vFrame, Throwable exception) { |
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488 doHalt(node, vFrame.materialize()); |
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489 } |
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490 |
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491 @TruffleBoundary |
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492 private void doHalt(Node node, MaterializedFrame mFrame) { |
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493 // HALT: |
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494 final int currentStackDepth = currentStackDepth(); |
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495 strategyTrace("HALT AFTER", "stackDepth: start=%d current=%d", stackDepth, currentStackDepth); |
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496 if (currentStackDepth < stackDepth) { |
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497 halt(node, mFrame, false); |
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498 } |
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499 strategyTrace("RESUME AFTER", ""); |
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500 } |
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501 }, "Debugger StepOut"); |
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502 } |
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503 |
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504 @Override |
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505 protected void unsetStrategy() { |
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506 afterTagInstrument.dispose(); |
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507 } |
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508 } |
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509 |
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510 /** |
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511 * Strategy: per-statement stepping, so long as not nested in method calls (i.e. at original |
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512 * stack depth). |
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513 * <ul> |
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514 * <li>User breakpoints are enabled.</li> |
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515 * <li>Execution continues until either: |
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516 * <ol> |
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517 * <li>execution arrives at a STATEMENT node with stack depth no more than when started |
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518 * <strong>or:</strong></li> |
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519 * <li>the program completes.</li> |
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520 * </ol> |
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521 * </ul> |
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522 */ |
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523 private final class StepOver extends StepStrategy { |
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524 private TagInstrument beforeTagInstrument; |
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525 private TagInstrument afterTagInstrument; |
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526 private int unfinishedStepCount; |
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527 |
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528 StepOver(int stepCount) { |
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529 this.unfinishedStepCount = stepCount; |
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530 } |
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531 |
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532 @Override |
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533 protected void setStrategy(final int stackDepth) { |
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534 beforeTagInstrument = instrumenter.attach(STEPPING_TAG, new StandardBeforeInstrumentListener() { |
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535 |
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536 @TruffleBoundary |
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537 @Override |
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538 public void onEnter(Probe probe, Node node, VirtualFrame vFrame) { |
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539 final int currentStackDepth = currentStackDepth(); |
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540 if (currentStackDepth <= stackDepth) { |
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541 // HALT: stack depth unchanged or smaller; treat like StepInto |
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542 --unfinishedStepCount; |
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543 if (TRACE) { |
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544 strategyTrace("HALT BEFORE", "unfinished steps=%d stackDepth start=%d current=%d", unfinishedStepCount, stackDepth, currentStackDepth); |
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545 } |
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546 // Test should run in fast path |
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547 if (unfinishedStepCount <= 0) { |
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548 halt(node, vFrame.materialize(), true); |
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549 } |
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550 } else { |
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551 // CONTINUE: Stack depth increased; don't count as a step |
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552 strategyTrace("STEP INTO", "unfinished steps=%d stackDepth start=%d current=%d", unfinishedStepCount, stackDepth, currentStackDepth); |
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553 // Stop treating like StepInto, start treating like StepOut |
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554 replaceStrategy(new StepOverNested(unfinishedStepCount, stackDepth)); |
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555 } |
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556 strategyTrace("RESUME BEFORE", ""); |
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557 } |
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558 }, "Debugger StepOver"); |
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559 |
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560 afterTagInstrument = instrumenter.attach(CALL_TAG, new StandardAfterInstrumentListener() { |
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561 |
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562 public void onReturnVoid(Probe probe, Node node, VirtualFrame vFrame) { |
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563 doHalt(node, vFrame.materialize()); |
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564 } |
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565 |
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566 public void onReturnValue(Probe probe, Node node, VirtualFrame vFrame, Object result) { |
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567 doHalt(node, vFrame.materialize()); |
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568 } |
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569 |
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570 public void onReturnExceptional(Probe probe, Node node, VirtualFrame vFrame, Throwable exception) { |
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571 doHalt(node, vFrame.materialize()); |
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572 } |
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573 |
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574 @TruffleBoundary |
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575 private void doHalt(Node node, MaterializedFrame mFrame) { |
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576 final int currentStackDepth = currentStackDepth(); |
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577 if (currentStackDepth < stackDepth) { |
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578 // HALT: just "stepped out" |
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579 --unfinishedStepCount; |
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580 strategyTrace("HALT AFTER", "unfinished steps=%d stackDepth: start=%d current=%d", unfinishedStepCount, stackDepth, currentStackDepth); |
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581 // Should run in fast path |
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582 if (unfinishedStepCount <= 0) { |
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583 halt(node, mFrame, false); |
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584 } |
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585 strategyTrace("RESUME AFTER", ""); |
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586 } |
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587 } |
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588 }, "Debugger StepOver"); |
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589 } |
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590 |
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591 @Override |
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592 protected void unsetStrategy() { |
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593 beforeTagInstrument.dispose(); |
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594 afterTagInstrument.dispose(); |
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595 } |
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596 } |
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597 |
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598 /** |
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599 * Strategy: per-statement stepping, not into method calls, in effect while at increased stack |
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600 * depth |
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601 * <ul> |
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602 * <li>User breakpoints are enabled.</li> |
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603 * <li>Execution continues until either: |
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604 * <ol> |
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605 * <li>execution arrives at a STATEMENT node with stack depth no more than when started |
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606 * <strong>or:</strong></li> |
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607 * <li>the program completes <strong>or:</strong></li> |
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608 * </ol> |
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609 * </ul> |
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610 */ |
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611 private final class StepOverNested extends StepStrategy { |
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612 private TagInstrument beforeTagInstrument; |
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613 private int unfinishedStepCount; |
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614 private final int startStackDepth; |
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615 |
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616 StepOverNested(int stepCount, int startStackDepth) { |
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617 this.unfinishedStepCount = stepCount; |
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618 this.startStackDepth = startStackDepth; |
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619 } |
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620 |
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621 @Override |
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622 protected void setStrategy(final int stackDepth) { |
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623 beforeTagInstrument = instrumenter.attach(STEPPING_TAG, new StandardBeforeInstrumentListener() { |
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624 @TruffleBoundary |
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625 @Override |
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626 public void onEnter(Probe probe, Node node, VirtualFrame vFrame) { |
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627 final int currentStackDepth = currentStackDepth(); |
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628 if (currentStackDepth <= startStackDepth) { |
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629 // At original step depth (or smaller) after being nested |
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630 --unfinishedStepCount; |
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631 strategyTrace("HALT AFTER", "unfinished steps=%d stackDepth start=%d current=%d", unfinishedStepCount, stackDepth, currentStackDepth); |
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632 if (unfinishedStepCount <= 0) { |
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633 halt(node, vFrame.materialize(), false); |
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634 } |
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635 // TODO (mlvdv) fixme for multiple steps |
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636 strategyTrace("RESUME BEFORE", ""); |
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637 } |
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638 } |
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639 }, "Debuger StepOverNested"); |
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640 } |
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641 |
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642 @Override |
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643 protected void unsetStrategy() { |
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644 beforeTagInstrument.dispose(); |
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645 } |
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646 } |
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647 |
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648 /** |
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649 * Information and debugging state for a single Truffle execution (which make take place over |
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650 * one or more suspended executions). This holds interaction state, for example what is |
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651 * executing (e.g. some {@link Source}), what the execution mode is ("stepping" or |
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652 * "continuing"). When not running, this holds a cache of the Truffle stack for this particular |
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653 * execution, effectively hiding the Truffle stack for any currently suspended executions (down |
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654 * the stack). |
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655 */ |
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656 private final class DebugExecutionContext { |
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657 |
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658 // Previous halted context in stack |
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659 private final DebugExecutionContext predecessor; |
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660 |
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661 // The current execution level; first is 0. |
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662 private final int level; // Number of contexts suspended below |
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663 private final Source source; |
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664 private final int contextStackBase; // Where the stack for this execution starts |
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665 private final List<String> warnings = new ArrayList<>(); |
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666 |
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667 private boolean running; |
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668 |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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669 /** |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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670 * The stepping strategy currently configured in the debugger. |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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671 */ |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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672 private StepStrategy strategy; |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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673 |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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674 /** |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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675 * Where halted; null if running. |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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676 */ |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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677 private Node haltedNode; |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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678 |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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679 /** |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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680 * Where halted; null if running. |
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681 */ |
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682 private MaterializedFrame haltedFrame; |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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683 |
22476
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684 /** |
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685 * Subset of the Truffle stack corresponding to the current execution, not including the |
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686 * current frame. |
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687 */ |
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688 private List<FrameInstance> contextStack; |
22471
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Truffle/Language&Debugger: reimplement completely how the execution stack is gathered and communicated; change the signature of TruffelLanguage.evalInContext() to comply.
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689 |
22003
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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690 private DebugExecutionContext(Source executionSource, DebugExecutionContext previousContext) { |
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691 this(executionSource, previousContext, -1); |
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692 } |
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693 |
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694 private DebugExecutionContext(Source executionSource, DebugExecutionContext previousContext, int depth) { |
22003
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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695 this.source = executionSource; |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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696 this.predecessor = previousContext; |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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697 this.level = previousContext == null ? 0 : previousContext.level + 1; |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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698 |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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699 // "Base" is the number of stack frames for all nested (halted) executions. |
22275
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700 this.contextStackBase = depth == -1 ? currentStackDepth() : depth; |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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701 this.running = true; |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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702 contextTrace("NEW CONTEXT"); |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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703 } |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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704 |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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705 /** |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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706 * Sets up a strategy for the next resumption of execution. |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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707 * |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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708 * @param stepStrategy |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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709 */ |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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710 void setStrategy(StepStrategy stepStrategy) { |
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711 setStrategy(currentStackDepth(), stepStrategy); |
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712 } |
141fe31da7a2
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713 |
141fe31da7a2
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714 void setStrategy(int depth, StepStrategy stepStrategy) { |
22003
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715 if (this.strategy == null) { |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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716 this.strategy = stepStrategy; |
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717 this.strategy.enable(this, depth); |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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718 if (TRACE) { |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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719 contextTrace("SET MODE <none>-->" + stepStrategy.getName()); |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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720 } |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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721 } else { |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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722 strategy.disable(); |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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723 strategy = stepStrategy; |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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724 strategy.enable(this, currentStackDepth()); |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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725 contextTrace("SWITCH MODE %s-->%s", strategy.getName(), stepStrategy.getName()); |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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726 } |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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727 } |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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|
728 |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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729 void clearStrategy() { |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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730 if (strategy != null) { |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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731 final StepStrategy oldStrategy = strategy; |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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732 strategy.disable(); |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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|
733 strategy = null; |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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734 contextTrace("CLEAR MODE %s--><none>", oldStrategy.getName()); |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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735 } |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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736 } |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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|
737 |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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|
738 /** |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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739 * Handle a program halt, caused by a breakpoint, stepping strategy, or other cause. |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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|
740 * |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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|
741 * @param astNode the guest language node at which execution is halted |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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parents:
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|
742 * @param mFrame the current execution frame where execution is halted |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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parents:
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743 * @param before {@code true} if halted <em>before</em> the node, else <em>after</em>. |
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744 */ |
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745 @TruffleBoundary |
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746 void halt(Node astNode, MaterializedFrame mFrame, boolean before, String haltReason) { |
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747 assert running; |
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748 assert haltedNode == null; |
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749 assert haltedFrame == null; |
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750 |
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751 haltedNode = astNode; |
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752 haltedFrame = mFrame; |
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753 running = false; |
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754 |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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755 clearStrategy(); |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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756 |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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757 // Clean up, just in cased the one-shot breakpoints got confused |
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758 lineBreaks.disposeOneShots(); |
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759 |
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760 // Includes the "caller" frame (not iterated) |
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761 final int contextStackDepth = (currentStackDepth() - contextStackBase) + 1; |
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762 |
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763 final List<String> recentWarnings = new ArrayList<>(warnings); |
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764 warnings.clear(); |
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765 |
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766 final List<FrameInstance> frames = new ArrayList<>(); |
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767 // Map the Truffle stack for this execution, ignore nested executions |
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768 // Ignore frames for which no CallNode is available. |
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769 // The top/current/0 frame is not produced by the iterator; reported separately |
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770 Truffle.getRuntime().iterateFrames(new FrameInstanceVisitor<FrameInstance>() { |
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771 int stackIndex = 1; |
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772 |
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773 @Override |
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774 public FrameInstance visitFrame(FrameInstance frameInstance) { |
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775 if (stackIndex < contextStackDepth) { |
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776 final Node callNode = frameInstance.getCallNode(); |
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777 if (callNode != null) { |
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778 final SourceSection sourceSection = callNode.getEncapsulatingSourceSection(); |
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779 if (sourceSection != null && !sourceSection.getIdentifier().equals("<unknown>")) { |
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780 frames.add(frameInstance); |
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781 } else if (TRACE) { |
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782 if (callNode != null) { |
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783 contextTrace("HIDDEN frame added: " + callNode); |
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784 } else { |
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785 contextTrace("HIDDEN frame added"); |
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786 } |
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787 frames.add(frameInstance); |
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788 } |
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789 } else if (TRACE) { |
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790 if (callNode != null) { |
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791 contextTrace("HIDDEN frame added: " + callNode); |
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792 } else { |
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793 contextTrace("HIDDEN frame added"); |
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794 } |
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795 frames.add(frameInstance); |
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796 } |
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797 stackIndex++; |
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798 return null; |
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799 } |
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800 return frameInstance; |
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801 } |
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802 }); |
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803 contextStack = Collections.unmodifiableList(frames); |
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804 |
22003
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805 if (TRACE) { |
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806 final String reason = haltReason == null ? "" : haltReason + ""; |
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807 final String where = before ? "BEFORE" : "AFTER"; |
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808 contextTrace("HALT %s : (%s) stack base=%d", where, reason, contextStackBase); |
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809 contextTrace("CURRENT STACK:"); |
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810 // printStack(OUT); |
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811 } |
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812 |
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813 try { |
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814 // Pass control to the debug client with current execution suspended |
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815 ACCESSOR.dispatchEvent(vm, new SuspendedEvent(Debugger.this, haltedNode, haltedFrame, contextStack, recentWarnings)); |
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816 // Debug client finished normally, execution resumes |
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817 // Presume that the client has set a new strategy (or default to Continue) |
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818 running = true; |
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819 } catch (KillException e) { |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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820 contextTrace("KILL"); |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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821 throw e; |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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822 } finally { |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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823 haltedNode = null; |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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824 haltedFrame = null; |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
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|
825 } |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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826 |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
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827 } |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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|
828 |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
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829 void logWarning(String warning) { |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
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830 warnings.add(warning); |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
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831 } |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
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832 |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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833 /* |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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834 * private void printStack(PrintStream stream) { getFrames(); if (frames == null) { |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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835 * stream.println("<empty stack>"); } else { final Visualizer visualizer = |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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836 * provider.getVisualizer(); for (FrameDebugDescription frameDesc : frames) { final |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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837 * StringBuilder sb = new StringBuilder(" frame " + Integer.toString(frameDesc.index())); |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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838 * sb.append(":at " + visualizer.displaySourceLocation(frameDesc.node())); sb.append(":in '" |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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839 * + visualizer.displayMethodName(frameDesc.node()) + "'"); stream.println(sb.toString()); } |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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840 * } } |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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841 */ |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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842 |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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843 void contextTrace(String format, Object... args) { |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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844 if (TRACE) { |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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845 final String srcName = (source != null) ? source.getName() : "no source"; |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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846 Debugger.trace("<%d> %s (%s)", level, String.format(format, args), srcName); |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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847 } |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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848 } |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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849 } |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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850 |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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851 // TODO (mlvdv) wish there were fast-path access to stack depth |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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852 /** |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
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853 * Depth of current Truffle stack, including nested executions. Includes the top/current frame, |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
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854 * which the standard iterator does not count: {@code 0} if no executions. |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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855 */ |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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856 @TruffleBoundary |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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857 private static int currentStackDepth() { |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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858 final int[] count = {0}; |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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859 Truffle.getRuntime().iterateFrames(new FrameInstanceVisitor<Void>() { |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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860 @Override |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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861 public Void visitFrame(FrameInstance frameInstance) { |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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862 count[0] = count[0] + 1; |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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863 return null; |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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864 } |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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865 }); |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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866 return count[0] == 0 ? 0 : count[0] + 1; |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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867 |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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868 } |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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869 |
22275
141fe31da7a2
Avoiding check for current stack depth on the initialization of debugger. Only when debugger is suspended the real check is needed.
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22270
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870 void executionStarted(int depth, Source source) { |
22003
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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871 Source execSource = source; |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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872 if (execSource == null) { |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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873 execSource = lastSource; |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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874 } else { |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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875 lastSource = execSource; |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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876 } |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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877 // Push a new execution context onto stack |
22275
141fe31da7a2
Avoiding check for current stack depth on the initialization of debugger. Only when debugger is suspended the real check is needed.
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878 debugContext = new DebugExecutionContext(execSource, debugContext, depth); |
141fe31da7a2
Avoiding check for current stack depth on the initialization of debugger. Only when debugger is suspended the real check is needed.
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879 prepareContinue(depth); |
22003
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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880 debugContext.contextTrace("START EXEC "); |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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881 ACCESSOR.dispatchEvent(vm, new ExecutionEvent(this)); |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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|
882 } |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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883 |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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884 void executionEnded() { |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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885 lineBreaks.disposeOneShots(); |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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886 tagBreaks.disposeOneShots(); |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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|
887 debugContext.clearStrategy(); |
5bc7f7b867ab
Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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888 debugContext.contextTrace("END EXEC "); |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
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|
889 // Pop the stack of execution contexts. |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
Jaroslav Tulach <jaroslav.tulach@oracle.com>
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890 debugContext = debugContext.predecessor; |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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891 } |
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892 |
22486
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893 /** |
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894 * Evaluates a snippet of code in a halted execution context. |
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895 * |
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896 * @param ev |
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897 * @param code |
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898 * @param frameInstance |
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899 * @return |
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900 * @throws IOException |
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901 */ |
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902 Object evalInContext(SuspendedEvent ev, String code, FrameInstance frameInstance) throws IOException { |
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903 if (frameInstance == null) { |
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904 return ACCESSOR.evalInContext(vm, ev, code, debugContext.haltedNode, debugContext.haltedFrame); |
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905 } else { |
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906 return ACCESSOR.evalInContext(vm, ev, code, frameInstance.getCallNode(), frameInstance.getFrame(FrameAccess.MATERIALIZE, true).materialize()); |
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907 } |
22206
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908 } |
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909 |
22066
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Clearly separating the TruffleLanguage definition from context used during its execution. TruffleLanguage now has to have public static field INSTANCE and override createContext method.
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910 @SuppressWarnings("rawtypes") |
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911 static final class AccessorDebug extends Accessor { |
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912 |
22003
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913 @Override |
22275
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914 protected Closeable executionStart(Object vm, int currentDepth, final Debugger debugger, Source s) { |
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915 debugger.executionStarted(currentDepth, s); |
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916 return new Closeable() { |
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917 @Override |
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918 public void close() throws IOException { |
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919 debugger.executionEnded(); |
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920 } |
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921 }; |
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922 } |
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923 |
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924 @Override |
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925 protected Debugger createDebugger(Object vm, Instrumenter instrumenter) { |
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926 return new Debugger(vm, instrumenter); |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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927 } |
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Making debugger always on for each TruffleVM execution. Introducing EventConsumer to process such debugger events. Requesting each RootNode to be associated with a TruffleLanguage, so debugger can find out proper context for each Node where executions gets suspended.
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928 |
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929 @Override |
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930 protected Class<? extends TruffleLanguage> findLanguage(Probe probe) { |
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931 return super.findLanguage(probe); |
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932 } |
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933 |
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934 @Override |
22128
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935 protected void dispatchEvent(Object vm, Object event) { |
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936 super.dispatchEvent(vm, event); |
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937 } |
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938 |
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939 @Override |
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940 protected Object evalInContext(Object vm, SuspendedEvent ev, String code, Node node, MaterializedFrame frame) throws IOException { |
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941 return super.evalInContext(vm, ev, code, node, frame); |
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942 } |
22003
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943 } |
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944 |
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945 // registers into Accessor.DEBUG |
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946 static final AccessorDebug ACCESSOR = new AccessorDebug(); |
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947 } |