| Clover coverage report - DrJava Test Coverage (drjava-20120422-r5456) |
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| Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
| Tokens.java | 50% | 82.4% | 80% | 79.4% |
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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.util.sexp; | |
| 38 | ||
| 39 | /** A common namespace for the token classes. */ | |
| 40 | public interface Tokens { | |
| 41 | ||
| 42 | /** These tokens are designed to be compared using the == operator with (, ), ", and \. Otherwise, the tokens may be | |
| 43 | * compared using the .equals() method. This class is concrete only for testing purposes. | |
| 44 | */ | |
| 45 | /* abstract */ class SExpToken { | |
| 46 | protected String _rep; | |
| 47 | ||
| 48 | /** @param rep The string representation of this token */ | |
| 49 | 580 | public SExpToken(String rep) { _rep = rep.intern(); } // intern() supports use of == for equality testing |
| 50 | ||
| 51 | /** @return the string representation of this token */ | |
| 52 | 437 | public String getText() { return _rep; } |
| 53 | ||
| 54 | 19 | public boolean equals(Object o) { |
| 55 | 19 | return (o != null && o.getClass() == getClass() && ((SExpToken)o)._rep == _rep); |
| 56 | } | |
| 57 | ||
| 58 | 0 | public int hashCode() { return _rep.hashCode(); } |
| 59 | ||
| 60 | 4 | public String toString() { return _rep; } |
| 61 | } | |
| 62 | ||
| 63 | ////////////// Symbol Tokens /////////////////// | |
| 64 | ||
| 65 | class LeftParenToken extends SExpToken { | |
| 66 | public static final LeftParenToken ONLY = new LeftParenToken(); | |
| 67 | 4 | private LeftParenToken() { super("("); } |
| 68 | } | |
| 69 | ||
| 70 | class RightParenToken extends SExpToken { | |
| 71 | public static final RightParenToken ONLY = new RightParenToken(); | |
| 72 | 4 | private RightParenToken() { super(")"); } |
| 73 | } | |
| 74 | ||
| 75 | class BackSlashToken extends SExpToken { | |
| 76 | public static final BackSlashToken ONLY = new BackSlashToken(); | |
| 77 | 1 | private BackSlashToken() { super("\\"); } |
| 78 | } | |
| 79 | ||
| 80 | ////////////// General Tokens ////////////////// | |
| 81 | ||
| 82 | /** Words include any text (including symbols) that is not a number, a backslash, or a quote character. */ | |
| 83 | 317 | class WordToken extends SExpToken { public WordToken(String word) { super(word); } } |
| 84 | ||
| 85 | /** This token is handled as a unit by the lexer. Any text between the pair of quotes is given | |
| 86 | * in this QuotedTextToken. | |
| 87 | */ | |
| 88 | class QuotedTextToken extends SExpToken { | |
| 89 | // private String _txt; | |
| 90 | 123 | public QuotedTextToken(String txt) { super(txt); } |
| 91 | 0 | public String getFullText() { return "\"" + _rep + "\""; } |
| 92 | } | |
| 93 | ||
| 94 | /** Words include any text (including symbols) that is not a number, a backslash, or a quote character. */ | |
| 95 | class BooleanToken extends SExpToken { | |
| 96 | public static final BooleanToken TRUE = new BooleanToken(true); | |
| 97 | public static final BooleanToken FALSE = new BooleanToken(false); | |
| 98 | ||
| 99 | private boolean _bool; | |
| 100 | 8 | private BooleanToken(boolean bool){ |
| 101 | 8 | super("" + bool); |
| 102 | 8 | _bool = bool; |
| 103 | } | |
| 104 | 0 | public boolean getValue() { return _bool; } |
| 105 | } | |
| 106 | ||
| 107 | /** Numbers are string s of only digits (0-9) | |
| 108 | */ | |
| 109 | class NumberToken extends SExpToken { | |
| 110 | private double _num; | |
| 111 | 117 | public NumberToken(double num){ |
| 112 | // If it is a whole number, don't include | |
| 113 | // the decimal in the string representation | |
| 114 | 117 | super((num % 1 == 0) ? "" + (int)num : "" + num); |
| 115 | 117 | _num = num; |
| 116 | } | |
| 117 | 114 | public double getValue() { return _num; } |
| 118 | } | |
| 119 | ||
| 120 | } |
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