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| Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
| QuestionHasCharPrecedingOpenBrace.java | 100% | 100% | 100% | 100% |
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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 | import javax.swing.text.BadLocationException; | |
| 42 | ||
| 43 | /** Determines whether or not the line enclosing brace is '{' and is immediately preceded by the given _prefix. | |
| 44 | * If _prefix is '=', we are looking for "= {". This questions corresponds to rule 22 in our decision tree. | |
| 45 | * @version $Id: QuestionHasCharPrecedingOpenBrace.java 5175 2010-01-20 08:46:32Z mgricken $ | |
| 46 | */ | |
| 47 | public class QuestionHasCharPrecedingOpenBrace extends IndentRuleQuestion { | |
| 48 | private char[] _prefix; | |
| 49 | ||
| 50 | /** @param yesRule The decision subtree for the case that this rule applies in the current context. | |
| 51 | * @param noRule The decision subtree for the case that this rule does not apply in the current context. | |
| 52 | */ | |
| 53 | 1477 | public QuestionHasCharPrecedingOpenBrace(char[] prefix, IndentRule yesRule, IndentRule noRule) { |
| 54 | 1476 | super(yesRule, noRule); |
| 55 | 1477 | _prefix = prefix; |
| 56 | } | |
| 57 | ||
| 58 | /** Applies the rule described in class documentation. Only runs in the event thread. | |
| 59 | * @param doc The AbstractDJDocument containing the current line. | |
| 60 | * @return true iff the last block/expression-list opened before the start of the current line begins with '{'. | |
| 61 | */ | |
| 62 | 94 | boolean applyRule(AbstractDJDocument doc, Indenter.IndentReason reason) { |
| 63 | ||
| 64 | 94 | int origin = doc.getCurrentLocation(); |
| 65 | 94 | int lineStart = doc._getLineStartPos(origin); |
| 66 | ||
| 67 | // Get brace for start of line | |
| 68 | 94 | BraceInfo info = doc._getLineEnclosingBrace(); |
| 69 | ||
| 70 | 94 | int dist = info.distance(); |
| 71 | ||
| 72 | 94 | if (! info.braceType().equals(BraceInfo.OPEN_CURLY) || dist < 0) { // dist < 0 means no such brace exists |
| 73 | 12 | return false; |
| 74 | } | |
| 75 | 82 | int bracePos = lineStart - dist; |
| 76 | ||
| 77 | // Get position of previous non-WS char (not in comments) | |
| 78 | 82 | try { |
| 79 | 82 | int loc = doc._findPrevNonWSCharPos(bracePos); |
| 80 | 82 | char ch = doc.getText(loc,1).charAt(0); |
| 81 | 24 | for (char pch: _prefix) if (ch == pch) return true; |
| 82 | } | |
| 83 | catch (BadLocationException e) { } | |
| 84 | 58 | return false; |
| 85 | } | |
| 86 | } |
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