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Added dwt-addons in original directory structure of eclipse.org
author Frank Benoit <benoit@tionex.de>
date Sat, 14 Mar 2009 18:23:29 +0100
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children 5feec68b4556
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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2006 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 * Port to the D programming language:
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11 * Frank Benoit <benoit@tionex.de>
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12 *******************************************************************************/
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13 module org.eclipse.text.edits.CopyTargetEdit;
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15 import org.eclipse.text.edits.MultiTextEdit; // packageimport
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16 import org.eclipse.text.edits.CopySourceEdit; // packageimport
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17 import org.eclipse.text.edits.MoveSourceEdit; // packageimport
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18 import org.eclipse.text.edits.CopyingRangeMarker; // packageimport
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19 import org.eclipse.text.edits.ReplaceEdit; // packageimport
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20 import org.eclipse.text.edits.EditDocument; // packageimport
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21 import org.eclipse.text.edits.UndoCollector; // packageimport
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22 import org.eclipse.text.edits.DeleteEdit; // packageimport
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23 import org.eclipse.text.edits.MoveTargetEdit; // packageimport
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24 import org.eclipse.text.edits.TextEditCopier; // packageimport
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25 import org.eclipse.text.edits.ISourceModifier; // packageimport
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26 import org.eclipse.text.edits.TextEditMessages; // packageimport
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27 import org.eclipse.text.edits.TextEditProcessor; // packageimport
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28 import org.eclipse.text.edits.MalformedTreeException; // packageimport
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29 import org.eclipse.text.edits.TreeIterationInfo; // packageimport
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30 import org.eclipse.text.edits.TextEditVisitor; // packageimport
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31 import org.eclipse.text.edits.TextEditGroup; // packageimport
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32 import org.eclipse.text.edits.TextEdit; // packageimport
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33 import org.eclipse.text.edits.RangeMarker; // packageimport
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34 import org.eclipse.text.edits.UndoEdit; // packageimport
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35 import org.eclipse.text.edits.InsertEdit; // packageimport
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36
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37
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38 import java.lang.all;
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39 import java.util.List;
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40 import java.util.Set;
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41
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42
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43 import org.eclipse.core.runtime.Assert;
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44 import org.eclipse.jface.text.BadLocationException;
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45 import org.eclipse.jface.text.IDocument;
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46
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47 /**
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48 * A copy target edit denotes the target of a copy operation. Copy
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49 * target edits are only valid inside an edit tree if they have a
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50 * corresponding source edit. Furthermore a target edit can't
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51 * can't be a direct or indirect child of the associated source edit.
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52 * Violating one of two requirements will result in a <code>
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53 * MalformedTreeException</code> when executing the edit tree.
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54 * <p>
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55 * Copy target edits can't be used as a parent for other edits.
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56 * Trying to add an edit to a copy target edit results in a <code>
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57 * MalformedTreeException</code> as well.
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58 *
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59 * @see org.eclipse.text.edits.CopySourceEdit
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60 *
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61 * @since 3.0
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62 */
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63 public final class CopyTargetEdit : TextEdit {
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64
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65 private CopySourceEdit fSource;
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66
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67 /**
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68 * Constructs a new copy target edit
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69 *
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70 * @param offset the edit's offset
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71 */
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72 public this(int offset) {
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73 super(offset, 0);
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74 }
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75
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76 /**
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77 * Constructs an new copy target edit
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78 *
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79 * @param offset the edit's offset
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80 * @param source the corresponding source edit
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81 */
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82 public this(int offset, CopySourceEdit source) {
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83 this(offset);
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84 setSourceEdit(source);
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85 }
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86
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87 /*
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88 * Copy constructor
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89 */
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90 private this(CopyTargetEdit other) {
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91 super(other);
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92 }
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93
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94 /**
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95 * Returns the associated source edit or <code>null</code>
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96 * if no source edit is associated yet.
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97 *
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98 * @return the source edit or <code>null</code>
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99 */
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100 public CopySourceEdit getSourceEdit() {
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101 return fSource;
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102 }
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103
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104 /**
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105 * Sets the source edit.
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106 *
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107 * @param edit the source edit
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108 *
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109 * @exception MalformedTreeException is thrown if the target edit
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110 * is a direct or indirect child of the source edit
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111 */
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112 public void setSourceEdit(CopySourceEdit edit) {
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113 Assert.isNotNull(edit);
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114 if (fSource !is edit) {
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115 fSource= edit;
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116 fSource.setTargetEdit(this);
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117 TextEdit parent= getParent();
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118 while (parent !is null) {
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119 if (parent is fSource)
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120 throw new MalformedTreeException(parent, this, TextEditMessages.getString("CopyTargetEdit.wrong_parent")); //$NON-NLS-1$
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121 parent= parent.getParent();
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122 }
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123 }
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124 }
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125
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126 /*
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127 * @see TextEdit#doCopy
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128 */
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129 protected TextEdit doCopy() {
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130 return new CopyTargetEdit(this);
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131 }
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132
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133 /*
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134 * @see TextEdit#postProcessCopy
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135 */
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136 protected void postProcessCopy(TextEditCopier copier) {
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137 if (fSource !is null) {
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138 CopyTargetEdit target= cast(CopyTargetEdit)copier.getCopy(this);
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139 CopySourceEdit source= cast(CopySourceEdit)copier.getCopy(fSource);
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140 if (target !is null && source !is null)
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141 target.setSourceEdit(source);
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142 }
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143 }
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144
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145 /*
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146 * @see TextEdit#accept0
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147 */
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148 protected void accept0(TextEditVisitor visitor) {
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149 bool visitChildren= visitor.visit(this);
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150 if (visitChildren) {
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151 acceptChildren(visitor);
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152 }
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153 }
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154
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155 /*
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156 * @see TextEdit#traverseConsistencyCheck
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157 */
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158 int traverseConsistencyCheck(TextEditProcessor processor, IDocument document, List sourceEdits) {
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159 return super.traverseConsistencyCheck(processor, document, sourceEdits) + 1;
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160 }
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161
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162 /*
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163 * @see TextEdit#performConsistencyCheck
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164 */
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165 void performConsistencyCheck(TextEditProcessor processor, IDocument document) {
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166 if (fSource is null)
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167 throw new MalformedTreeException(getParent(), this, TextEditMessages.getString("CopyTargetEdit.no_source")); //$NON-NLS-1$
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168 if (fSource.getTargetEdit() !is this)
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169 throw new MalformedTreeException(getParent(), this, TextEditMessages.getString("CopyTargetEdit.different_target")); //$NON-NLS-1$
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170 }
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171
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172 /*
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173 * @see TextEdit#performDocumentUpdating
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174 */
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175 int performDocumentUpdating(IDocument document) {
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176 String source= fSource.getContent();
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177 document.replace(getOffset(), getLength(), source);
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178 fDelta= source.length() - getLength();
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179 fSource.clearContent();
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180 return fDelta;
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181 }
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182
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183 /*
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184 * @see TextEdit#deleteChildren
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185 */
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186 bool deleteChildren() {
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187 return false;
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188 }
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189 }