1 | /******************************************************************************* |
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2 | * Copyright (c) 2005 IBM Corporation and others. |
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3 | * All rights reserved. This program and the accompanying materials |
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4 | * are made available under the terms of the Eclipse Public License v1.0 |
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5 | * which accompanies this distribution, and is available at |
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6 | * http://www.eclipse.org/legal/epl-v10.html |
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7 | * |
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8 | * Contributors: |
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9 | * IBM Corporation - initial API and implementation |
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10 | * Bjorn Freeman-Benson - initial API and implementation |
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11 | *******************************************************************************/ |
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12 | package org.modelica.mdt.breakpoint; |
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13 | |
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14 | import org.eclipse.core.resources.IResource; |
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15 | import org.eclipse.core.runtime.CoreException; |
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16 | import org.eclipse.debug.core.DebugPlugin; |
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17 | import org.eclipse.debug.core.model.IBreakpoint; |
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18 | import org.eclipse.debug.core.model.ILineBreakpoint; |
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19 | import org.eclipse.debug.ui.actions.IToggleBreakpointsTargetExtension; |
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20 | import org.eclipse.jface.text.BadLocationException; |
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21 | import org.eclipse.jface.text.IDocument; |
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22 | import org.eclipse.jface.text.IRegion; |
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23 | import org.eclipse.jface.text.ITextSelection; |
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24 | import org.eclipse.jface.viewers.ISelection; |
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25 | import org.eclipse.ui.IWorkbenchPart; |
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26 | import org.eclipse.ui.texteditor.IDocumentProvider; |
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27 | import org.eclipse.ui.texteditor.ITextEditor; |
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28 | import org.modelica.mdt.debug.core.MDTDebugCorePlugin; |
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29 | import org.modelica.mdt.debug.core.breakpoints.MDTLineBreakpoint; |
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30 | import org.modelica.mdt.debug.core.breakpoints.MDTWatchpoint; |
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31 | |
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32 | /** |
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33 | * Adapter to create breakpoints in MDT files. |
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34 | */ |
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35 | public class MDTBreakpointAdapter implements IToggleBreakpointsTargetExtension { |
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36 | /* (non-Javadoc) |
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37 | * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTarget#toggleLineBreakpoints(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection) |
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38 | */ |
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39 | public void toggleLineBreakpoints(IWorkbenchPart part, ISelection selection) throws CoreException { |
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40 | ITextEditor textEditor = getEditor(part); |
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41 | if (textEditor != null) { |
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42 | IResource resource = (IResource) textEditor.getEditorInput().getAdapter(IResource.class); |
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43 | ITextSelection textSelection = (ITextSelection) selection; |
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44 | int lineNumber = textSelection.getStartLine(); |
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45 | IBreakpoint[] breakpoints = DebugPlugin.getDefault().getBreakpointManager().getBreakpoints(MDTDebugCorePlugin.ID_MDT_DEBUG_MODEL); |
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46 | for (int i = 0; i < breakpoints.length; i++) { |
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47 | IBreakpoint breakpoint = breakpoints[i]; |
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48 | if (breakpoint instanceof ILineBreakpoint && resource.equals(breakpoint.getMarker().getResource())) { |
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49 | if (((ILineBreakpoint)breakpoint).getLineNumber() == (lineNumber + 1)) { |
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50 | // remove |
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51 | breakpoint.delete(); |
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52 | return; |
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53 | } |
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54 | } |
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55 | } |
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56 | // create line breakpoint (doc line numbers start at 0) |
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57 | MDTLineBreakpoint lineBreakpoint = new MDTLineBreakpoint(resource, lineNumber + 1); |
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58 | DebugPlugin.getDefault().getBreakpointManager().addBreakpoint(lineBreakpoint); |
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59 | } |
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60 | } |
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61 | /* (non-Javadoc) |
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62 | * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTarget#canToggleLineBreakpoints(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection) |
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63 | */ |
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64 | public boolean canToggleLineBreakpoints(IWorkbenchPart part, ISelection selection) { |
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65 | return getEditor(part) != null; |
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66 | } |
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67 | |
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68 | /** |
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69 | * Returns the editor being used to edit a MDT file, associated with the |
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70 | * given part, or <code>null</code> if none. |
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71 | * |
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72 | * @param part workbench part |
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73 | * @return the editor being used to edit a MDT file, associated with the |
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74 | * given part, or <code>null</code> if none |
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75 | */ |
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76 | private ITextEditor getEditor(IWorkbenchPart part) { |
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77 | if (part instanceof ITextEditor) { |
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78 | ITextEditor editorPart = (ITextEditor) part; |
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79 | IResource resource = (IResource) editorPart.getEditorInput().getAdapter(IResource.class); |
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80 | if (resource != null) { |
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81 | String extension = resource.getFileExtension(); |
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82 | if (extension != null && extension.equals("mo")) { |
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83 | return editorPart; |
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84 | } |
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85 | } |
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86 | } |
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87 | return null; |
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88 | } |
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89 | |
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90 | /* (non-Javadoc) |
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91 | * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTarget#toggleMethodBreakpoints(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection) |
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92 | */ |
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93 | public void toggleMethodBreakpoints(IWorkbenchPart part, ISelection selection) throws CoreException { |
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94 | } |
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95 | /* (non-Javadoc) |
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96 | * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTarget#canToggleMethodBreakpoints(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection) |
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97 | */ |
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98 | public boolean canToggleMethodBreakpoints(IWorkbenchPart part, ISelection selection) { |
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99 | return false; |
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100 | } |
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101 | /* (non-Javadoc) |
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102 | * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTarget#toggleWatchpoints(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection) |
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103 | */ |
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104 | public void toggleWatchpoints(IWorkbenchPart part, ISelection selection) throws CoreException { |
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105 | String[] variableAndFunctionName = getVariableAndFunctionName(part, selection); |
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106 | if (variableAndFunctionName != null && part instanceof ITextEditor && selection instanceof ITextSelection) { |
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107 | ITextEditor editorPart = (ITextEditor)part; |
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108 | int lineNumber = ((ITextSelection)selection).getStartLine(); |
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109 | IResource resource = (IResource) editorPart.getEditorInput().getAdapter(IResource.class); |
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110 | String var = variableAndFunctionName[0]; |
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111 | String fcn = variableAndFunctionName[1]; |
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112 | // look for existing watchpoint to delete |
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113 | IBreakpoint[] breakpoints = DebugPlugin.getDefault().getBreakpointManager().getBreakpoints(MDTDebugCorePlugin.ID_MDT_DEBUG_MODEL); |
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114 | for (int i = 0; i < breakpoints.length; i++) { |
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115 | IBreakpoint breakpoint = breakpoints[i]; |
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116 | if (breakpoint instanceof MDTWatchpoint && resource.equals(breakpoint.getMarker().getResource())) { |
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117 | MDTWatchpoint watchpoint = (MDTWatchpoint)breakpoint; |
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118 | String otherVar = watchpoint.getVariableName(); |
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119 | String otherFcn = watchpoint.getFunctionName(); |
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120 | if (otherVar.equals(var) && otherFcn.equals(fcn)) { |
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121 | breakpoint.delete(); |
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122 | return; |
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123 | } |
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124 | } |
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125 | } |
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126 | // create watchpoint |
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127 | MDTWatchpoint watchpoint = new MDTWatchpoint(resource, lineNumber + 1, fcn, var, true, true); |
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128 | DebugPlugin.getDefault().getBreakpointManager().addBreakpoint(watchpoint); |
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129 | } |
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130 | } |
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131 | /* (non-Javadoc) |
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132 | * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTarget#canToggleWatchpoints(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection) |
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133 | */ |
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134 | public boolean canToggleWatchpoints(IWorkbenchPart part, ISelection selection) { |
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135 | return getVariableAndFunctionName(part, selection) != null; |
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136 | } |
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137 | |
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138 | /** |
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139 | * Returns the variable and function names at the current line, or <code>null</code> if none. |
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140 | * |
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141 | * @param part text editor |
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142 | * @param selection text selection |
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143 | * @return the variable and function names at the current line, or <code>null</code> if none. |
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144 | * The array has two elements, the first is the variable name, the second is the function name. |
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145 | */ |
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146 | private String[] getVariableAndFunctionName(IWorkbenchPart part, ISelection selection) { |
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147 | ITextEditor editor = getEditor(part); |
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148 | if (editor != null && selection instanceof ITextSelection) { |
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149 | ITextSelection textSelection = (ITextSelection) selection; |
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150 | IDocumentProvider documentProvider = editor.getDocumentProvider(); |
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151 | try { |
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152 | documentProvider.connect(this); |
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153 | IDocument document = documentProvider.getDocument(editor.getEditorInput()); |
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154 | IRegion region = document.getLineInformationOfOffset(textSelection.getOffset()); |
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155 | String string = document.get(region.getOffset(), region.getLength()).trim(); |
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156 | if (string.startsWith("var ")) { |
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157 | String varName = string.substring(4).trim(); |
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158 | String fcnName = getFunctionName(document, varName, document.getLineOfOffset(textSelection.getOffset())); |
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159 | return new String[] {varName, fcnName}; |
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160 | } |
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161 | } catch (CoreException e) { |
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162 | } catch (BadLocationException e) { |
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163 | } finally { |
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164 | documentProvider.disconnect(this); |
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165 | } |
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166 | } |
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167 | return null; |
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168 | } |
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169 | |
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170 | /** |
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171 | * Returns the name of the function containing the given variable defined at the given |
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172 | * line number in the specified document. |
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173 | * |
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174 | * @param document MDT source file |
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175 | * @param varName variable name |
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176 | * @param line line numbner at which the variable is defined |
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177 | * @return name of function defining the variable |
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178 | */ |
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179 | private String getFunctionName(IDocument document, String varName, int line) { |
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180 | // This is a simple guess at the function name - look for the labels preceeding |
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181 | // the variable definition, and then see if there are any 'calls' to that |
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182 | // label. If none, assumet the variable is in the "_main_" function |
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183 | String source = document.get(); |
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184 | int lineIndex = line - 1; |
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185 | while (lineIndex >= 0) { |
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186 | try { |
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187 | IRegion information = document.getLineInformation(lineIndex); |
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188 | String lineText = document.get(information.getOffset(), information.getLength()); |
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189 | if (lineText.startsWith(":")) { |
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190 | String label = lineText.substring(1); |
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191 | if (source.indexOf("call " + label) >= 0) { |
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192 | return label; |
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193 | } |
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194 | } |
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195 | lineIndex--; |
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196 | } catch (BadLocationException e) { |
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197 | } |
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198 | } |
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199 | return "_main_"; |
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200 | } |
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201 | |
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202 | /* (non-Javadoc) |
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203 | * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTargetExtension#toggleBreakpoints(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection) |
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204 | */ |
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205 | public void toggleBreakpoints(IWorkbenchPart part, ISelection selection) throws CoreException { |
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206 | if (canToggleWatchpoints(part, selection)) { |
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207 | toggleWatchpoints(part, selection); |
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208 | } else { |
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209 | toggleLineBreakpoints(part, selection); |
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210 | } |
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211 | } |
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212 | |
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213 | /* (non-Javadoc) |
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214 | * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTargetExtension#canToggleBreakpoints(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection) |
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215 | */ |
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216 | public boolean canToggleBreakpoints(IWorkbenchPart part, ISelection selection) { |
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217 | return canToggleLineBreakpoints(part, selection) || canToggleWatchpoints(part, selection); |
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218 | } |
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219 | } |
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