DrJava Test Coverage (drjava-20120422-r5456)

Clover coverage report - DrJava Test Coverage (drjava-20120422-r5456)

Coverage timestamp: Sun Apr 22 2012 03:13:25 CDT

FRAMES NO FRAMES

file stats:	LOC:	116		Methods:	10
	NCLOC:	37		Classes:	1

Source file

Conditionals

Statements

Methods

TOTAL

BrowserDocumentRegion.java

50%

66.7%

50%

59.4%

1		/*BEGIN_COPYRIGHT_BLOCK
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36
37		package edu.rice.cs.drjava.model;
38
39		import javax.swing.text.Position;
40		import javax.swing.tree.DefaultMutableTreeNode;
41		import java.io.File;
42
43		/** Class for document regions that totally ordered by allocation chronology. They do not conform to the invariants
44		* required for OrderedDocumentRegions.
45		* Warning: this class defines compareTo which implicitly defines a coarser equality relation than equals
46		* @version $Id: BrowserDocumentRegion.java 5425 2011-02-03 06:46:51Z rcartwright $
47		*/
48		public class BrowserDocumentRegion implements IDocumentRegion, Comparable<BrowserDocumentRegion> {
49		private static volatile int _indexCounter = 0; // sequence number counter for browser regions
50		private final int _index; // unique sequence number for this region
51		protected final OpenDefinitionsDocument _doc; // document for this region
52		protected final File _file; // file for this region
53		protected Position _startPosition; // start position for this region
54		protected Position _endPosition; // final position for this region
55		protected volatile DefaultMutableTreeNode _treeNode;
56
57		/** Create a new simple document region with a bona fide document.
58		* @param doc document that contains this region
59		* @param file file that contains the region
60		* @param sp start position of the region
61		* @param ep end position of the region
62		*/
63	28	public BrowserDocumentRegion(OpenDefinitionsDocument doc, Position sp, Position ep) {
64	28	assert doc != null;
65	28	_index = _indexCounter++; // sequence number records allocation order
66	28	_doc = doc;
67	28	_file = doc.getRawFile(); // don't check the validity of _file here
68	28	_startPosition = sp;
69	28	_endPosition = ep;
70	28	_treeNode = null;
71		}
72
73		/* Relying on default equals operation. */
74
75		/** This hash function is consistent with equals. */
76	21	public int hashCode() { return _index; }
77
78		/** This relation is coarset than equals. */
79	0	public int compareTo(BrowserDocumentRegion r) { return _index - r._index; }
80
81	0	public int getIndex() { return _index; }
82
83		/** @return the document. */
84	56	public OpenDefinitionsDocument getDocument() { return _doc; }
85
86		/** @return the file. */
87	0	public File getFile() { return _file; }
88
89		/** @return the start offset */
90	14	public int getStartOffset() { return _startPosition.getOffset(); }
91
92		/** @return the end offset */
93	0	public int getEndOffset() { return _endPosition.getOffset(); }
94
95		/* The following are commented out because a Position object includes a reference to the corresponding object,
96		* preventing it from being garbage-collected. We cannot retain any Position objects for documents that have
97		* been kicked out the document cache assuming we want such documents to be garbage-collected (which is the
98		* primary motivation for creating the document cache).
99		*/
100
101		// /** @return the start position */
102		// public Position getStartPosition() { return _startPosition; }
103
104		// /** @return the end offset */
105		// public Position getEndPosition() { return _endPosition; }
106
107	7	public void update(BrowserDocumentRegion other) {
108	0	if (other.getDocument() != _doc) throw new IllegalArgumentException("Regions must have the same document.");
109	7	_startPosition = other._startPosition;
110	7	_endPosition = other._endPosition;
111		}
112
113	0	public String toString() {
114	0	return _doc.toString() + "[" + getStartOffset() + "]";
115		}
116		}