Clover coverage report - DrJava Test Coverage (drjava-20120304-r5456)
Coverage timestamp: Sun Mar 4 2012 03:13:23 CST
file stats: LOC: 94   Methods: 2
NCLOC: 18   Classes: 1
 
 Source file Conditionals Statements Methods TOTAL
QuestionPrevLineStartsComment.java 50% 90% 100% 85.7%
coverage coverage
 1    /*BEGIN_COPYRIGHT_BLOCK
 2    *
 3    * Copyright (c) 2001-2010, JavaPLT group at Rice University (drjava@rice.edu)
 4    * All rights reserved.
 5    *
 6    * Redistribution and use in source and binary forms, with or without
 7    * modification, are permitted provided that the following conditions are met:
 8    * * Redistributions of source code must retain the above copyright
 9    * notice, this list of conditions and the following disclaimer.
 10    * * Redistributions in binary form must reproduce the above copyright
 11    * notice, this list of conditions and the following disclaimer in the
 12    * documentation and/or other materials provided with the distribution.
 13    * * Neither the names of DrJava, the JavaPLT group, Rice University, nor the
 14    * names of its contributors may be used to endorse or promote products
 15    * derived from this software without specific prior written permission.
 16    *
 17    * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 18    * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 19    * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 20    * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 21    * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 22    * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 23    * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 24    * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 25    * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 26    * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 27    * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 28    *
 29    * This software is Open Source Initiative approved Open Source Software.
 30    * Open Source Initative Approved is a trademark of the Open Source Initiative.
 31    *
 32    * This file is part of DrJava. Download the current version of this project
 33    * from http://www.drjava.org/ or http://sourceforge.net/projects/drjava/
 34    *
 35    * END_COPYRIGHT_BLOCK*/
 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    /** Given the start of the current line is inside a block comment, asks
 43    * whether the comment begins on the "previous line," ignoring white space.
 44    *
 45    * @version $Id: QuestionPrevLineStartsComment.java 5175 2010-01-20 08:46:32Z mgricken $
 46    */
 47    class QuestionPrevLineStartsComment extends IndentRuleQuestion {
 48   
 49  1474 QuestionPrevLineStartsComment(IndentRule yesRule, IndentRule noRule) {
 50  1474 super(yesRule, noRule);
 51    }
 52   
 53    /** Determines if the previous line in the document starts a block comment. Assumes that read lock and reduced lock
 54    * are already held.
 55    * We know that the current line is in a block comment. Therefore, if the
 56    * start of the previous line is not inside of a block comment, then the
 57    * previous line must have started the comment.
 58    * <p>
 59    * There is an exception to this; however, it is handled adequately. Consider
 60    * the case when the previous line contains the following code:
 61    * <code>*&#47; bar(); &#47;*</code>
 62    * <p>
 63    * Our approach will say that since the beginning of the previous line is
 64    * inside of a comment, the previous line did not start the comment. This
 65    * is acceptable because we think of the previous line as a continuation
 66    * of a larger commented out region.
 67    * @param doc AbstractDJDocument containing the line to be indented.
 68    * @return true if this node's rule holds.
 69    */
 70  24 boolean applyRule(AbstractDJDocument doc, Indenter.IndentReason reason) {
 71   
 72  24 int cursor;
 73   
 74    // Move back to start of current line
 75  24 cursor = doc._getLineStartPos(doc.getCurrentLocation());
 76   
 77    /* If the start of the current line is the start of the document, there was no previous line and so this line must
 78    * have started the comment. */
 79  0 if (cursor == 0) return false;
 80   
 81    // Move the cursor to the previous line
 82  24 cursor = cursor - 1;
 83   
 84    // Move it to the start of the previous line
 85  24 cursor = doc._getLineStartPos(cursor);
 86   
 87    // Return if the start of the previous line is in a comment.
 88    // BraceReduction reduced = doc.getReduced();
 89  24 doc.resetReducedModelLocation();
 90  24 ReducedModelState state = doc.stateAtRelLocation(cursor - doc.getCurrentLocation());
 91  24 return ! state.equals(ReducedModelStates.INSIDE_BLOCK_COMMENT);
 92    }
 93    }
 94