1
|
|
|
<?php |
2
|
|
|
/** |
3
|
|
|
* PHP Units of Measure Library |
4
|
|
|
* |
5
|
|
|
* @link https://github.com/hiqdev/php-units |
6
|
|
|
* @package php-units |
7
|
|
|
* @license BSD-3-Clause |
8
|
|
|
* @copyright Copyright (c) 2017, HiQDev (http://hiqdev.com/) |
9
|
|
|
*/ |
10
|
|
|
|
11
|
|
|
namespace hiqdev\php\units; |
12
|
|
|
|
13
|
|
|
/** |
14
|
|
|
* Quantity with Unit. |
15
|
|
|
* |
16
|
|
|
* @author Andrii Vasyliev <[email protected]> |
17
|
|
|
*/ |
18
|
|
|
abstract class AbstractQuantity implements QuantityInterface |
19
|
|
|
{ |
20
|
|
|
/** |
21
|
|
|
* @var UnitInterface |
22
|
|
|
*/ |
23
|
|
|
private $unit; |
24
|
|
|
|
25
|
|
|
/** |
26
|
|
|
* @var float|int|string |
27
|
|
|
*/ |
28
|
|
|
private $quantity; |
29
|
|
|
|
30
|
|
|
/** |
31
|
|
|
* @var UnitInterface $unit |
32
|
|
|
* @var float|int|string $quantity |
33
|
|
|
*/ |
34
|
6 |
|
private function __construct(UnitInterface $unit, $quantity) |
35
|
|
|
{ |
36
|
6 |
|
$this->unit = $unit; |
37
|
6 |
|
$this->quantity = $quantity; |
38
|
6 |
|
} |
39
|
|
|
|
40
|
|
|
/** |
41
|
|
|
* Creates quantity with same unit. |
42
|
|
|
* Optimized to return this if same quantity. |
43
|
|
|
* @var float|int|string $quantity |
44
|
|
|
*/ |
45
|
3 |
|
final protected function create($quantity) |
46
|
|
|
{ |
47
|
3 |
|
return $this->quantity === $quantity ? $this : new static($this->unit, $quantity); |
48
|
|
|
} |
49
|
|
|
|
50
|
|
|
/** |
51
|
|
|
* {@inheritdoc} |
52
|
|
|
*/ |
53
|
2 |
|
private function getCalculator() |
54
|
|
|
{ |
55
|
2 |
|
return $this->unit->getCalculator(); |
56
|
|
|
} |
57
|
|
|
|
58
|
|
|
/** |
59
|
|
|
* {@inheritdoc} |
60
|
|
|
*/ |
61
|
2 |
|
final public function getQuantity() |
62
|
|
|
{ |
63
|
2 |
|
return $this->quantity; |
64
|
|
|
} |
65
|
|
|
|
66
|
|
|
/** |
67
|
|
|
* {@inheritdoc} |
68
|
|
|
*/ |
69
|
1 |
|
final public function getUnit() |
70
|
|
|
{ |
71
|
1 |
|
return $this->unit; |
72
|
|
|
} |
73
|
|
|
|
74
|
|
|
/** |
75
|
|
|
* {@inheritdoc} |
76
|
|
|
*/ |
77
|
2 |
|
final public function compare(QuantityInterface $other) |
78
|
|
|
{ |
79
|
2 |
|
$arg = $other->convert($this->unit); |
80
|
|
|
|
81
|
2 |
|
return $this->getCalculator()->compare($this->quantity, $arg->quantity); |
|
|
|
|
82
|
|
|
} |
83
|
|
|
|
84
|
|
|
/** |
85
|
|
|
* {@inheritdoc} |
86
|
|
|
*/ |
87
|
1 |
|
final public function equals(QuantityInterface $other) |
88
|
|
|
{ |
89
|
1 |
|
return $this->compare($other) === 0; |
90
|
|
|
} |
91
|
|
|
|
92
|
|
|
/** |
93
|
|
|
* {@inheritdoc} |
94
|
|
|
*/ |
95
|
1 |
|
final public function isConvertible(UnitInterface $unit) |
96
|
|
|
{ |
97
|
1 |
|
return $this->unit->isConvertible($unit); |
|
|
|
|
98
|
|
|
} |
99
|
|
|
|
100
|
|
|
/** |
101
|
|
|
* {@inheritdoc} |
102
|
|
|
*/ |
103
|
3 |
|
final public function convert(UnitInterface $unit) |
104
|
|
|
{ |
105
|
3 |
|
$res = $this->unit->convert($unit, $this->quantity); |
106
|
|
|
|
107
|
3 |
|
return $this->create($res); |
108
|
|
|
} |
109
|
|
|
|
110
|
|
|
/** |
111
|
|
|
* {@inheritdoc} |
112
|
|
|
*/ |
113
|
|
View Code Duplication |
final public function add(QuantityInterface $addend) |
|
|
|
|
114
|
|
|
{ |
115
|
|
|
$arg = $addend->convert($this->unit); |
116
|
|
|
$res = $this->getCalculator()->add($this->quantity, $arg); |
|
|
|
|
117
|
|
|
|
118
|
|
|
return $this->create($res); |
119
|
|
|
} |
120
|
|
|
|
121
|
|
|
/** |
122
|
|
|
* {@inheritdoc} |
123
|
|
|
*/ |
124
|
|
View Code Duplication |
final public function subtract(QuantityInterface $subtrahend) |
|
|
|
|
125
|
|
|
{ |
126
|
|
|
$arg = $subtrahend->convert($this->unit); |
127
|
|
|
$res = $this->getCalculator()->subtract($this->quantity, $arg); |
|
|
|
|
128
|
|
|
|
129
|
|
|
return $this->create($res); |
130
|
|
|
} |
131
|
|
|
|
132
|
|
|
/** |
133
|
|
|
* {@inheritdoc} |
134
|
|
|
*/ |
135
|
|
|
final public function multiply($multiplier) |
136
|
|
|
{ |
137
|
|
|
$res = $this->getCalculator()->multiply($this->quantity, $multiplier); |
138
|
|
|
|
139
|
|
|
return $this->create($res); |
140
|
|
|
} |
141
|
|
|
|
142
|
|
|
/** |
143
|
|
|
* {@inheritdoc} |
144
|
|
|
*/ |
145
|
|
|
final public function divide($divisor) |
146
|
|
|
{ |
147
|
|
|
$res = $this->getCalculator()->divide($this->quantity, $divisor); |
148
|
|
|
|
149
|
|
|
return $this->create($res); |
150
|
|
|
} |
151
|
|
|
|
152
|
|
|
/** |
153
|
|
|
* {@inheritdoc} |
154
|
|
|
*/ |
155
|
|
|
final public function ceil() |
156
|
|
|
{ |
157
|
|
|
$res = $this->getCalculator()->ceil($this->quantity); |
158
|
|
|
|
159
|
|
|
return $this->create($res); |
160
|
|
|
} |
161
|
|
|
|
162
|
|
|
/** |
163
|
|
|
* {@inheritdoc} |
164
|
|
|
*/ |
165
|
|
|
final public function floor() |
166
|
|
|
{ |
167
|
|
|
$res = $this->getCalculator()->floor($this->quantity); |
168
|
|
|
|
169
|
|
|
return $this->create($res); |
170
|
|
|
} |
171
|
|
|
|
172
|
|
|
/** |
173
|
|
|
* {@inheritdoc} |
174
|
|
|
*/ |
175
|
|
|
final public function round($roundingMode) |
176
|
|
|
{ |
177
|
|
|
$res = $this->getCalculator()->round($this->quantity, $roundingMode); |
178
|
|
|
|
179
|
|
|
return $this->create($res); |
180
|
|
|
} |
181
|
|
|
|
182
|
|
|
/** |
183
|
|
|
* {@inheritdoc} |
184
|
|
|
*/ |
185
|
|
|
final public function absolute() |
186
|
|
|
{ |
187
|
|
|
$res = $this->getCalculator()->absolute($this->quantity); |
188
|
|
|
|
189
|
|
|
return $this->create($res); |
190
|
|
|
} |
191
|
|
|
|
192
|
6 |
|
final public static function __callStatic($unit, $args) |
193
|
|
|
{ |
194
|
6 |
|
return new static(static::findUnit($unit), $args[0]); |
195
|
|
|
} |
196
|
|
|
|
197
|
|
|
/** |
198
|
|
|
* Returns unit for given unit name. |
199
|
|
|
* The only function to change in child classes. |
200
|
|
|
* XXX Should be defined as abstract but `abstract static` is not supported in PHP5. |
201
|
|
|
* @param string $name |
|
|
|
|
202
|
|
|
* @return UnitInterface |
203
|
|
|
* @throws InvalidConfigException |
204
|
|
|
*/ |
205
|
|
|
protected static function findUnit($unit) |
206
|
|
|
{ |
207
|
|
|
throw new InvalidConfigException('getUnit method must be redefined'); |
208
|
|
|
} |
209
|
|
|
} |
210
|
|
|
|
If you access a property on an interface, you most likely code against a concrete implementation of the interface.
Available Fixes
Adding an additional type check:
Changing the type hint: