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Truffle: extensions to the DebugManager interface in the Instrumentation Framework
author Michael Van De Vanter <michael.van.de.vanter@oracle.com>
date Tue, 07 Jan 2014 18:28:40 -0800
parents 69d2e4baa215
children fbf448929260
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1 /*
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2 * Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation. Oracle designates this
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8 * particular file as subject to the "Classpath" exception as provided
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9 * by Oracle in the LICENSE file that accompanied this code.
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10 *
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11 * This code is distributed in the hope that it will be useful, but WITHOUT
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 * version 2 for more details (a copy is included in the LICENSE file that
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15 * accompanied this code).
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16 *
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17 * You should have received a copy of the GNU General Public License version
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18 * 2 along with this work; if not, write to the Free Software Foundation,
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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20 *
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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22 * or visit www.oracle.com if you need additional information or have any
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23 * questions.
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24 */
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25 package com.oracle.truffle.api;
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26
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27 import com.oracle.truffle.api.frame.*;
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28 import com.oracle.truffle.api.nodes.*;
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29 import com.oracle.truffle.api.nodes.instrument.*;
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30 import com.oracle.truffle.api.source.*;
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31
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32 /**
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33 * Language-agnostic access to AST-based debugging support.
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34 * <p>
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35 * <strong>Disclaimer:</strong> this interface is under development and will change.
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36 */
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37 public interface DebugManager {
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38
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39 /**
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40 * Gets a list of current breakpoints.
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41 */
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42 LineBreakpoint[] getBreakpoints();
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43
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44 /**
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45 * Sets a breakpoint at a line-based location.
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46 */
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47 LineBreakpoint setBreakpoint(SourceLineLocation lineLocation);
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48
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49 /**
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50 * Sets a breakpoint at a line-based location with a boolean expression in the guest language to
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51 * serve as a break condition.
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52 */
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53 LineBreakpoint setConditionalBreakpoint(SourceLineLocation lineLocation, String condition);
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54
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55 /**
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56 * Sets a breakpoint at a line-based location that will remove itself when hit.
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57 */
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58 LineBreakpoint setOneShotBreakpoint(SourceLineLocation lineLocation);
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59
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60 /**
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61 * Is there a line-based breakpoint set at a location?
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62 */
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63 boolean hasBreakpoint(SourceLineLocation lineLocation);
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64
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65 /**
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66 * Removes a breakpoint at a line-based location.
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67 */
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68 void removeBreakpoint(SourceLineLocation lineLocation);
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69
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70 /**
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71 * Notification from Truffle execution that execution should halt in a debugging context.
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72 */
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73 /**
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74 * Receives notification of a suspended execution context; execution resumes when this method
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75 * returns.
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Michael Van De Vanter <michael.van.de.vanter@oracle.com>
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76 *
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parents: 13455
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77 * @param astNode a guest language AST node that represents the current execution site, assumed
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78 * not to be any kind of {@link InstrumentationNode},
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79 * @param frame execution frame at the site where execution suspended
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80 */
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81 void haltedAt(Node astNode, MaterializedFrame frame);
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82
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83 /**
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84 * Description of a line-based breakpoint.
69d2e4baa215 Truffle: new infrastructure related to instrumentation, and in particular debugging: support for managing Source objects; framework for generalized "instrumentation proxy nodes" (to be inserted into ASTs with no runtime cost when inactive), and "probes" (which can be attached to proxy nodes to receive event notification); a rudimentary interface and abstract implementation for a "debug manager" (mostly a placeholder at this point); and the beginning of a language-agnostic ExecutionContext interface.
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85 */
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86 interface LineBreakpoint {
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87
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88 SourceLineLocation getSourceLineLocation();
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89
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90 String getDebugStatus();
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91 }
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92
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93 }