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comparison org.eclipse.text/src/org/eclipse/text/edits/TextEditCopier.d @ 12:bc29606a740c

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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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11:43904fec5dca 12:bc29606a740c
1 /*******************************************************************************
2 * Copyright (c) 2000, 2006 IBM Corporation and others.
3 * All rights reserved. This program and the accompanying materials
4 * are made available under the terms of the Eclipse Public License v1.0
5 * which accompanies this distribution, and is available at
6 * http://www.eclipse.org/legal/epl-v10.html
7 *
8 * Contributors:
9 * IBM Corporation - initial API and implementation
10 * Port to the D programming language:
11 * Frank Benoit <benoit@tionex.de>
12 *******************************************************************************/
13 module org.eclipse.text.edits.TextEditCopier;
14
15 import org.eclipse.text.edits.MultiTextEdit; // packageimport
16 import org.eclipse.text.edits.CopySourceEdit; // packageimport
17 import org.eclipse.text.edits.MoveSourceEdit; // packageimport
18 import org.eclipse.text.edits.CopyingRangeMarker; // packageimport
19 import org.eclipse.text.edits.ReplaceEdit; // packageimport
20 import org.eclipse.text.edits.EditDocument; // packageimport
21 import org.eclipse.text.edits.UndoCollector; // packageimport
22 import org.eclipse.text.edits.DeleteEdit; // packageimport
23 import org.eclipse.text.edits.MoveTargetEdit; // packageimport
24 import org.eclipse.text.edits.CopyTargetEdit; // packageimport
25 import org.eclipse.text.edits.ISourceModifier; // packageimport
26 import org.eclipse.text.edits.TextEditMessages; // packageimport
27 import org.eclipse.text.edits.TextEditProcessor; // packageimport
28 import org.eclipse.text.edits.MalformedTreeException; // packageimport
29 import org.eclipse.text.edits.TreeIterationInfo; // packageimport
30 import org.eclipse.text.edits.TextEditVisitor; // packageimport
31 import org.eclipse.text.edits.TextEditGroup; // packageimport
32 import org.eclipse.text.edits.TextEdit; // packageimport
33 import org.eclipse.text.edits.RangeMarker; // packageimport
34 import org.eclipse.text.edits.UndoEdit; // packageimport
35 import org.eclipse.text.edits.InsertEdit; // packageimport
36
37
38 import java.lang.all;
39 import java.util.List;
40 import java.util.ArrayList;
41 import java.util.Iterator;
42 import java.util.Map;
43 import java.util.HashMap;
44 import java.util.Set;
45
46
47
48
49
50
51 import org.eclipse.core.runtime.Assert;
52
53
54 /**
55 * Copies a tree of text edits. A text edit copier keeps a map
56 * between original and new text edits. It can be used to map
57 * a copy back to its original edit.
58 *
59 * @since 3.0
60 */
61 public final class TextEditCopier {
62
63 private TextEdit fEdit;
64 private Map fCopies;
65
66 /**
67 * Constructs a new <code>TextEditCopier</code> for the
68 * given edit. The actual copy is done by calling <code>
69 * perform</code>.
70 *
71 * @param edit the edit to copy
72 *
73 * @see #perform()
74 */
75 public this(TextEdit edit) {
76 // super();
77 Assert.isNotNull(edit);
78 fEdit= edit;
79 fCopies= new HashMap();
80 }
81
82 /**
83 * Performs the actual copying.
84 *
85 * @return the copy
86 */
87 public TextEdit perform() {
88 TextEdit result= doCopy(fEdit);
89 if (result !is null) {
90 for (Iterator iter= fCopies.keySet().iterator(); iter.hasNext();) {
91 TextEdit edit= cast(TextEdit)iter.next();
92 edit.postProcessCopy_package(this);
93 }
94 }
95 return result;
96 }
97
98 /**
99 * Returns the copy for the original text edit.
100 *
101 * @param original the original for which the copy
102 * is requested
103 * @return the copy of the original edit or <code>null</code>
104 * if the original isn't managed by this copier
105 */
106 public TextEdit getCopy(TextEdit original) {
107 Assert.isNotNull(original);
108 return cast(TextEdit)fCopies.get(original);
109 }
110
111 //---- helper methods --------------------------------------------
112
113 private TextEdit doCopy(TextEdit edit) {
114 TextEdit result= edit.doCopy_package();
115 List children= edit.internalGetChildren();
116 if (children !is null) {
117 List newChildren= new ArrayList(children.size());
118 for (Iterator iter= children.iterator(); iter.hasNext();) {
119 TextEdit childCopy= doCopy(cast(TextEdit)iter.next());
120 childCopy.internalSetParent(result);
121 newChildren.add(childCopy);
122 }
123 result.internalSetChildren(newChildren);
124 }
125 addCopy(edit, result);
126 return result;
127 }
128
129 private void addCopy(TextEdit original, TextEdit copy) {
130 fCopies.put(original, copy);
131 }
132 }