1 /* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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3 * The contents of this file are subject to the Netscape Public
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4 * License Version 1.1 (the "License"); you may not use this file
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5 * except in compliance with the License. You may obtain a copy of
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6 * the License at http://www.mozilla.org/NPL/
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8 * Software distributed under the License is distributed on an "AS
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9 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
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10 * implied. See the License for the specific language governing
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11 * rights and limitations under the License.
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13 * The Original Code is Rhino code, released
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16 * The Initial Developer of the Original Code is Netscape
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17 * Communications Corporation. Portions created by Netscape are
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18 * Copyright (C) 1997-2000 Netscape Communications Corporation. All
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24 * Alternatively, the contents of this file may be used under the
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25 * terms of the GNU Public License (the "GPL"), in which case the
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26 * provisions of the GPL are applicable instead of those above.
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27 * If you wish to allow use of your version of this file only
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28 * under the terms of the GPL and not to allow others to use your
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29 * version of this file under the NPL, indicate your decision by
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30 * deleting the provisions above and replace them with the notice
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31 * and other provisions required by the GPL. If you do not delete
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32 * the provisions above, a recipient may use your version of this
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33 * file under either the NPL or the GPL.
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38 package org.mozilla.javascript;
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40 import org.mozilla.javascript.debug.*;
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42 public class DebuggableEngineImpl implements DebuggableEngine {
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44 public DebuggableEngineImpl(Context cx) {
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49 * Set whether the engine should break when it encounters
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52 * The engine will call the attached debugger's handleBreakpointHit
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53 * method on the next line it executes if isLineStep is true.
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54 * May be used from another thread to interrupt execution.
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56 * @param isLineStep if true, break next line
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58 public void setBreakNextLine(boolean isLineStep) {
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59 cx.inLineStepMode = isLineStep;
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63 * Return the value of the breakNextLine flag.
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64 * @return true if the engine will break on execution of the
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67 public boolean getBreakNextLine() {
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68 return cx.inLineStepMode;
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72 * Set the associated debugger.
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73 * @param debugger the debugger to be used on callbacks from
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76 public void setDebugger(Debugger debugger) {
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77 cx.debugger = debugger;
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81 * Return the current debugger.
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82 * @return the debugger, or null if none is attached.
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84 public Debugger getDebugger() {
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89 * Return the number of frames in current execution.
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90 * @return the count of current frames
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92 public int getFrameCount() {
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93 return cx.frameStack == null ? 0 : cx.frameStack.size();
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97 * Return a frame from the current execution.
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98 * Frames are numbered starting from 0 for the innermost
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100 * @param frameNumber the number of the frame in the range
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102 * @return the relevant DebugFrame, or null if frameNumber is out
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103 * of range or the engine isn't currently saving
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106 public DebugFrame getFrame(int frameNumber) {
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107 return (DebugFrame) cx.frameStack.elementAt(cx.frameStack.size() - frameNumber - 1);
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110 private Context cx;
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