DrJava Test Coverage (drjava-20120304-r5456)

Clover coverage report - DrJava Test Coverage (drjava-20120304-r5456)

Coverage timestamp: Sun Mar 4 2012 03:13:23 CST

FRAMES NO FRAMES

file stats:	LOC:	116		Methods:	2
	NCLOC:	49		Classes:	1

Source file

Conditionals

Statements

Methods

TOTAL

QuestionCurrLineStartsWithSkipComments.java

88.9%

100%

96%

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36
37		package edu.rice.cs.drjava.model.definitions.indent;
38
39		import edu.rice.cs.drjava.model.AbstractDJDocument;
40		import edu.rice.cs.drjava.model.definitions.reducedmodel.*;
41
42		import static edu.rice.cs.drjava.model.definitions.reducedmodel.ReducedModelStates.*;
43
44		/** Determines whether the current line in the document starts with a specific character sequence, skipping over any
45		* comments and leading whitespace on that line. The character sequence is passed to the constructor of the class as
46		* a String argument.
47		* @version $Id: QuestionCurrLineStartsWithSkipComments.java 5175 2010-01-20 08:46:32Z mgricken $
48		*/
49		public class QuestionCurrLineStartsWithSkipComments extends IndentRuleQuestion {
50		/** The String to be matched. This String may not contain whitespace characters or comment-delimiting characters. */
51		private String _prefix;
52
53		/** @param yesRule The decision subtree for the case that this rule applies in the current context.
54		* @param noRule The decision subtree for the case that this rule does not apply in the current context.
55		*/
56	2949	public QuestionCurrLineStartsWithSkipComments(String prefix, IndentRule yesRule, IndentRule noRule) {
57	2948	super(yesRule, noRule);
58	2949	_prefix = prefix;
59		}
60
61		/** Determines whether or not the current line in the document starts with the character sequence specified by the
62		* String field _prefix, skipping over any comments and leading whitespace on that line. Will not match prefixes
63		* that begin with "//" or "/*" or whitespace. Will not match empty string unless line has some uncommented nonWS
64		* text. Assumes that write lock and reduced lock are already held.
65		* @param doc The AbstractDJDocument containing the current line.
66		* @return True iff the current line in the document starts with the
67		* character sequence specified by the String field _prefix.
68		*/
69	211	boolean applyRule(AbstractDJDocument doc, Indenter.IndentReason reason) {
70		// Find the first non-whitespace character on the current line.
71
72	211	int origPos = doc.getCurrentLocation();
73	211	int startPos = doc._getLineFirstCharPos(origPos);
74	211	int endPos = doc._getLineEndPos(origPos);
75	211	int lineLength = endPos - startPos;
76
77	211	char prevChar = '\0';
78	211	String text = doc._getText(startPos, lineLength);
79		// System.err.println("line is: '" + text + "'");
80
81	211	doc.setCurrentLocation(startPos);
82	211	try {
83	211	for (int i = 0; i < lineLength; i++, doc.move(1)) {
84
85	644	ReducedModelState state = doc.getStateAtCurrent();
86
87	644	if (state.equals(INSIDE_BLOCK_COMMENT)) { // Handle case: .../
88	394	assert prevChar == '\0';
89	394	continue;
90		}
91	250	char currentChar = text.charAt(i);
92		// System.err.println("Iteration " + i + ": ch = " + currentChar + " prevCh = " + prevChar);
93
94	250	if (currentChar == '/') {
95	6	if (prevChar == '/') return false; // opened a LINE_COMMENT
96	21	if (prevChar == '\0') {
97	21	prevChar = currentChar;
98	21	continue; // leading char in line is '/'
99		}
100		}
101	223	else if (currentChar == '*' && prevChar == '/') { // opened a BLOCK_COMMENT, subsequent chars will be inside
102	13	prevChar = '\0';
103	13	continue;
104		}
105	210	else if (currentChar == ' ' \|\| currentChar == '\t') {
106	47	if (prevChar == '\0') {
107	45	continue; // consume opening whitespace
108		}
109		}
110	165	return text.startsWith(_prefix, i); // special cases have already been eliminated
111		}
112		}
113	211	finally { doc.setCurrentLocation(origPos); }
114	40	return false;
115		}
116		}