| Clover coverage report - PLT Utilities Test Coverage (plt-20120304-r5436) |
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| Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
| Wrapper.java | 50% | 88.2% | 100% | 84.2% |
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| 1 | /*BEGIN_COPYRIGHT_BLOCK* | |
| 2 | ||
| 3 | PLT Utilities BSD License | |
| 4 | ||
| 5 | Copyright (c) 2007-2010 JavaPLT group at Rice University | |
| 6 | All rights reserved. | |
| 7 | ||
| 8 | Developed by: Java Programming Languages Team | |
| 9 | Rice University | |
| 10 | http://www.cs.rice.edu/~javaplt/ | |
| 11 | ||
| 12 | Redistribution and use in source and binary forms, with or without modification, are permitted | |
| 13 | provided that the following conditions are met: | |
| 14 | ||
| 15 | - Redistributions of source code must retain the above copyright notice, this list of conditions | |
| 16 | and the following disclaimer. | |
| 17 | - Redistributions in binary form must reproduce the above copyright notice, this list of | |
| 18 | conditions and the following disclaimer in the documentation and/or other materials provided | |
| 19 | with the distribution. | |
| 20 | - Neither the name of the JavaPLT group, Rice University, nor the names of the library's | |
| 21 | contributors may be used to endorse or promote products derived from this software without | |
| 22 | specific prior written permission. | |
| 23 | ||
| 24 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR | |
| 25 | IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND | |
| 26 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS AND | |
| 27 | CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 28 | DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 29 | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER | |
| 30 | IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT | |
| 31 | OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 32 | ||
| 33 | *END_COPYRIGHT_BLOCK*/ | |
| 34 | ||
| 35 | package edu.rice.cs.plt.tuple; | |
| 36 | ||
| 37 | import java.io.Serializable; | |
| 38 | ||
| 39 | import edu.rice.cs.plt.lambda.Thunk; | |
| 40 | import edu.rice.cs.plt.lambda.Lambda; | |
| 41 | ||
| 42 | /** | |
| 43 | * An arbitrary 1-tuple; overrides {@link #toString()}, {@link #equals(Object)}, | |
| 44 | * and {@link #hashCode()}. | |
| 45 | */ | |
| 46 | public class Wrapper<T> extends Option<T> implements Thunk<T> { | |
| 47 | ||
| 48 | protected final T _value; | |
| 49 | ||
| 50 | 1476 | public Wrapper(T value) { _value = value; } |
| 51 | ||
| 52 | 12 | public T value() { return _value; } |
| 53 | ||
| 54 | 900 | public T unwrap() { return _value; } |
| 55 | ||
| 56 | 1 | public T unwrap(T forNone) { return _value; } |
| 57 | ||
| 58 | 1 | public <Ret> Ret apply(OptionVisitor<? super T, ? extends Ret> visitor) { |
| 59 | 1 | return visitor.forSome(_value); |
| 60 | } | |
| 61 | ||
| 62 | 1085 | public boolean isSome() { return true; } |
| 63 | ||
| 64 | 6 | public String toString() { return "(" + _value + ")"; } |
| 65 | ||
| 66 | /** | |
| 67 | * @return {@code true} iff {@code this} is of the same class as {@code o}, and the | |
| 68 | * wrapped values are equal (according to {@code equals}) | |
| 69 | */ | |
| 70 | 3 | public boolean equals(Object o) { |
| 71 | 0 | if (this == o) { return true; } |
| 72 | 0 | else if (o == null || !getClass().equals(o.getClass())) { return false; } |
| 73 | else { | |
| 74 | 3 | Wrapper<?> cast = (Wrapper<?>) o; |
| 75 | 3 | return _value == null ? cast._value == null : _value.equals(cast._value); |
| 76 | } | |
| 77 | } | |
| 78 | ||
| 79 | 3 | protected int generateHashCode() { |
| 80 | 3 | return (_value == null ? 0 : _value.hashCode()) ^ getClass().hashCode(); |
| 81 | } | |
| 82 | ||
| 83 | /** Call the constructor (allows {@code T} to be inferred) */ | |
| 84 | 2 | public static <T> Wrapper<T> make(T value) { return new Wrapper<T>(value); } |
| 85 | ||
| 86 | /** Produce a lambda that invokes the constructor */ | |
| 87 | 1 | @SuppressWarnings("unchecked") public static <T> Lambda<T, Wrapper<T>> factory() { |
| 88 | 1 | return (Factory<T>) Factory.INSTANCE; |
| 89 | } | |
| 90 | ||
| 91 | private static final class Factory<T> implements Lambda<T, Wrapper<T>>, Serializable { | |
| 92 | public static final Factory<Object> INSTANCE = new Factory<Object>(); | |
| 93 | 1 | private Factory() {} |
| 94 | 1 | public Wrapper<T> value(T val) { return new Wrapper<T>(val); } |
| 95 | } | |
| 96 | ||
| 97 | } |
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