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| Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
| QuestionPrevLineStartsComment.java | 50% | 90% | 100% | 85.7% |
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| 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>*/ bar(); /*</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 |
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