1
|
|
|
<?php |
2
|
|
|
/** |
3
|
|
|
* Base daft objects. |
4
|
|
|
* |
5
|
|
|
* @author SignpostMarv |
6
|
|
|
*/ |
7
|
|
|
declare(strict_types=1); |
8
|
|
|
|
9
|
|
|
namespace SignpostMarv\DaftObject; |
10
|
|
|
|
11
|
|
|
use TypeError; |
12
|
|
|
|
13
|
|
|
/** |
14
|
|
|
* Base daft object. |
15
|
|
|
*/ |
16
|
|
|
abstract class AbstractDaftObject implements DaftObject |
17
|
|
|
{ |
18
|
|
|
/** |
19
|
|
|
* List of properties that can be defined on an implementation. |
20
|
|
|
* |
21
|
|
|
* @var string[] |
22
|
|
|
*/ |
23
|
|
|
const PROPERTIES = []; |
24
|
|
|
|
25
|
|
|
/** |
26
|
|
|
* List of nullable properties that can be defined on an implementation. |
27
|
|
|
* |
28
|
|
|
* @var string[] |
29
|
|
|
*/ |
30
|
|
|
const NULLABLE_PROPERTIES = []; |
31
|
|
|
|
32
|
|
|
/** |
33
|
|
|
* Index of checked types. |
34
|
|
|
* |
35
|
|
|
* @see self::CheckTypeDefinesOwnIdProperties() |
36
|
|
|
* |
37
|
|
|
* @var bool[] |
38
|
|
|
*/ |
39
|
|
|
private static $checkedTypes = []; |
40
|
|
|
|
41
|
|
|
/** |
42
|
|
|
* Does some sanity checking. |
43
|
|
|
* |
44
|
|
|
* @see DefinesOwnIdPropertiesInterface |
45
|
|
|
* @see self::CheckTypeDefinesOwnIdProperties() |
46
|
|
|
* |
47
|
|
|
* @throws TypeError if static::class was previously determined to be incorrectly implemented |
48
|
|
|
*/ |
49
|
40 |
|
public function __construct() |
50
|
|
|
{ |
51
|
|
|
if ( |
52
|
40 |
|
($this instanceof DefinesOwnIdPropertiesInterface) && |
53
|
32 |
|
false === self::CheckTypeDefinesOwnIdProperties($this) |
54
|
|
|
) { |
55
|
1 |
|
throw new IncorrectlyImplementedTypeError( |
56
|
1 |
|
get_class($this) . // phpunit coverage does not pick up static::class here |
57
|
1 |
|
' already determined to be incorrectly implemented' |
58
|
|
|
); |
59
|
|
|
} |
60
|
37 |
|
} |
61
|
|
|
|
62
|
|
|
/** |
63
|
|
|
* Maps param $property to the getter method. |
64
|
|
|
* |
65
|
|
|
* @param string $property the property being retrieved |
66
|
|
|
* |
67
|
|
|
* @throws UndefinedPropertyException if a property is undefined |
68
|
|
|
* |
69
|
|
|
* @return mixed |
70
|
|
|
*/ |
71
|
26 |
View Code Duplication |
public function __get(string $property) |
72
|
|
|
{ |
73
|
26 |
|
$expectedMethod = 'Get' . ucfirst($property); |
74
|
26 |
|
if (true !== method_exists($this, $expectedMethod)) { |
75
|
1 |
|
throw new UndefinedPropertyException(static::class, $property); |
76
|
|
|
} |
77
|
|
|
|
78
|
25 |
|
return $this->$expectedMethod(); |
79
|
|
|
} |
80
|
|
|
|
81
|
|
|
/** |
82
|
|
|
* Maps param $property to the getter method. |
83
|
|
|
* |
84
|
|
|
* @param string $property the property being retrieved |
85
|
|
|
* @param mixed $v |
86
|
|
|
* |
87
|
|
|
* @throws UndefinedPropertyException if a property is undefined |
88
|
|
|
* |
89
|
|
|
* @return mixed |
90
|
|
|
*/ |
91
|
13 |
View Code Duplication |
public function __set(string $property, $v) |
92
|
|
|
{ |
93
|
13 |
|
$expectedMethod = 'Set' . ucfirst($property); |
94
|
|
|
if ( |
95
|
13 |
|
true !== method_exists($this, $expectedMethod) |
96
|
|
|
) { |
97
|
1 |
|
throw new PropertyNotWriteableException(static::class, $property); |
98
|
|
|
} |
99
|
|
|
|
100
|
12 |
|
return $this->$expectedMethod($v); |
101
|
|
|
} |
102
|
|
|
|
103
|
|
|
/** |
104
|
|
|
* required to support unset($foo->bar). |
105
|
|
|
* |
106
|
|
|
* @param string $property the property being unset |
107
|
|
|
* |
108
|
|
|
* @see static::NudgePropertyValue() |
109
|
|
|
*/ |
110
|
8 |
|
public function __unset(string $property) : void |
111
|
|
|
{ |
112
|
8 |
|
$this->NudgePropertyValue($property, null); |
113
|
6 |
|
} |
114
|
|
|
|
115
|
|
|
/** |
116
|
|
|
* List of properties that can be defined on an implementation. |
117
|
|
|
* |
118
|
|
|
* @return string[] |
119
|
|
|
*/ |
120
|
6 |
|
final public static function DaftObjectProperties() : array |
121
|
|
|
{ |
122
|
6 |
|
return static::PROPERTIES; |
123
|
|
|
} |
124
|
|
|
|
125
|
|
|
/** |
126
|
|
|
* List of nullable properties that can be defined on an implementation. |
127
|
|
|
* |
128
|
|
|
* @return string[] |
129
|
|
|
*/ |
130
|
9 |
|
final public static function DaftObjectNullableProperties() : array |
131
|
|
|
{ |
132
|
9 |
|
return static::NULLABLE_PROPERTIES; |
133
|
|
|
} |
134
|
|
|
|
135
|
|
|
/** |
136
|
|
|
* Nudge the state of a given property, marking it as dirty. |
137
|
|
|
* |
138
|
|
|
* @param string $property property being nudged |
139
|
|
|
* @param mixed $value value to nudge property with |
140
|
|
|
* |
141
|
|
|
* @throws UndefinedPropertyException if $property is not in static::DaftObjectProperties() |
142
|
|
|
* @throws PropertyNotNullableException if $property is not in static::DaftObjectNullableProperties() |
143
|
|
|
*/ |
144
|
|
|
abstract protected function NudgePropertyValue( |
145
|
|
|
string $property, |
146
|
|
|
$value |
147
|
|
|
) : void; |
148
|
|
|
|
149
|
|
|
/** |
150
|
|
|
* Checks if a type correctly defines it's own id. |
151
|
|
|
* |
152
|
|
|
* @param DaftObject $object |
153
|
|
|
* |
154
|
|
|
* @throws TypeError if $object::DaftObjectIdProperties() does not contain at least one property |
155
|
|
|
* @throws TypeError if $object::DaftObjectIdProperties() is not string[] |
156
|
|
|
* @throws UndefinedPropertyException if an id property is not in $object::DaftObjectIdProperties() |
157
|
|
|
*/ |
158
|
33 |
|
final protected static function CheckTypeDefinesOwnIdProperties( |
159
|
|
|
DaftObject $object |
160
|
|
|
) : bool { |
161
|
33 |
|
static $checkedTypes = []; |
162
|
|
|
|
163
|
33 |
|
if (false === isset($checkedTypes[get_class($object)])) { |
164
|
8 |
|
$checkedTypes[get_class($object)] = false; |
165
|
|
|
|
166
|
8 |
|
if (false === ($object instanceof DefinesOwnIdPropertiesInterface)) { |
167
|
1 |
|
throw new IncorrectlyImplementedTypeError( |
168
|
1 |
|
get_class($object) . |
169
|
|
|
' does not implement ' . |
170
|
1 |
|
DefinesOwnIdPropertiesInterface::class |
171
|
|
|
); |
172
|
|
|
} |
173
|
|
|
|
174
|
|
|
/** |
175
|
|
|
* @var DefinesOwnIdPropertiesInterface $object |
176
|
|
|
*/ |
177
|
7 |
|
$object = $object; |
|
|
|
|
178
|
|
|
|
179
|
7 |
|
$properties = $object::DaftObjectIdProperties(); |
180
|
|
|
|
181
|
7 |
|
if (count($properties) < 1) { |
182
|
1 |
|
throw new IncorrectlyImplementedTypeError( |
183
|
1 |
|
get_class($object) . |
184
|
|
|
'::DaftObjectIdProperties() must return at least one' . |
185
|
1 |
|
' property' |
186
|
|
|
); |
187
|
|
|
} |
188
|
|
|
|
189
|
6 |
|
foreach ($properties as $property) { |
190
|
6 |
|
if (false === is_string($property)) { |
191
|
1 |
|
throw new IncorrectlyImplementedTypeError( |
192
|
1 |
|
get_class($object) . |
193
|
1 |
|
'::DaftObjectIdProperties() does not return string[]' |
194
|
|
|
); |
195
|
|
|
} elseif ( |
196
|
5 |
|
false === in_array( |
197
|
5 |
|
$property, |
198
|
5 |
|
$object::DaftObjectProperties(), |
199
|
5 |
|
true |
200
|
|
|
) |
201
|
|
|
) { |
202
|
|
|
throw new UndefinedPropertyException( |
203
|
|
|
get_class($object), |
204
|
|
|
$property |
205
|
|
|
); |
206
|
|
|
} |
207
|
|
|
} |
208
|
|
|
|
209
|
5 |
|
$checkedTypes[get_class($object)] = true; |
210
|
|
|
} |
211
|
|
|
|
212
|
30 |
|
return $checkedTypes[get_class($object)]; |
213
|
|
|
} |
214
|
|
|
} |
215
|
|
|
|
This checks looks for cases where a variable has been assigned to itself.
This assignement can be removed without consequences.