1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
<?php
namespace GraphQL\Utils;
/**
* Similar to PHP array, but allows any type of data to act as key (including arrays, objects, scalars)
*
* Note: unfortunately when storing array as key - access and modification is O(N)
* (yet this should be really rare case and should be avoided when possible)
*
* Class MixedStore
* @package GraphQL\Utils
*/
class MixedStore implements \ArrayAccess
{
/**
* @var array
*/
private $standardStore;
/**
* @var array
*/
private $floatStore;
/**
* @var \SplObjectStorage
*/
private $objectStore;
/**
* @var array
*/
private $arrayKeys;
/**
* @var array
*/
private $arrayValues;
/**
* @var array
*/
private $lastArrayKey;
/**
* @var mixed
*/
private $lastArrayValue;
/**
* @var mixed
*/
private $nullValue;
/**
* @var bool
*/
private $nullValueIsSet;
/**
* @var mixed
*/
private $trueValue;
/**
* @var bool
*/
private $trueValueIsSet;
/**
* @var mixed
*/
private $falseValue;
/**
* @var bool
*/
private $falseValueIsSet;
/**
* MixedStore constructor.
*/
public function __construct()
{
$this->standardStore = [];
$this->floatStore = [];
$this->objectStore = new \SplObjectStorage();
$this->arrayKeys = [];
$this->arrayValues = [];
$this->nullValueIsSet = false;
$this->trueValueIsSet = false;
$this->falseValueIsSet = false;
}
/**
* Whether a offset exists
* @link http://php.net/manual/en/arrayaccess.offsetexists.php
* @param mixed $offset <p>
* An offset to check for.
* </p>
* @return boolean true on success or false on failure.
* </p>
* <p>
* The return value will be casted to boolean if non-boolean was returned.
* @since 5.0.0
*/
public function offsetExists($offset)
{
if (false === $offset) {
return $this->falseValueIsSet;
}
if (true === $offset) {
return $this->trueValueIsSet;
}
if (is_int($offset) || is_string($offset)) {
return array_key_exists($offset, $this->standardStore);
}
if (is_float($offset)) {
return array_key_exists((string) $offset, $this->floatStore);
}
if (is_object($offset)) {
return $this->objectStore->offsetExists($offset);
}
if (is_array($offset)) {
foreach ($this->arrayKeys as $index => $entry) {
if ($entry === $offset) {
$this->lastArrayKey = $offset;
$this->lastArrayValue = $this->arrayValues[$index];
return true;
}
}
}
if (null === $offset) {
return $this->nullValueIsSet;
}
return false;
}
/**
* Offset to retrieve
* @link http://php.net/manual/en/arrayaccess.offsetget.php
* @param mixed $offset <p>
* The offset to retrieve.
* </p>
* @return mixed Can return all value types.
* @since 5.0.0
*/
public function offsetGet($offset)
{
if (true === $offset) {
return $this->trueValue;
}
if (false === $offset) {
return $this->falseValue;
}
if (is_int($offset) || is_string($offset)) {
return $this->standardStore[$offset];
}
if (is_float($offset)) {
return $this->floatStore[(string)$offset];
}
if (is_object($offset)) {
return $this->objectStore->offsetGet($offset);
}
if (is_array($offset)) {
// offsetGet is often called directly after offsetExists, so optimize to avoid second loop:
if ($this->lastArrayKey === $offset) {
return $this->lastArrayValue;
}
foreach ($this->arrayKeys as $index => $entry) {
if ($entry === $offset) {
return $this->arrayValues[$index];
}
}
}
if (null === $offset) {
return $this->nullValue;
}
return null;
}
/**
* Offset to set
* @link http://php.net/manual/en/arrayaccess.offsetset.php
* @param mixed $offset <p>
* The offset to assign the value to.
* </p>
* @param mixed $value <p>
* The value to set.
* </p>
* @return void
* @since 5.0.0
*/
public function offsetSet($offset, $value)
{
if (false === $offset) {
$this->falseValue = $value;
$this->falseValueIsSet = true;
} else if (true === $offset) {
$this->trueValue = $value;
$this->trueValueIsSet = true;
} else if (is_int($offset) || is_string($offset)) {
$this->standardStore[$offset] = $value;
} else if (is_float($offset)) {
$this->floatStore[(string)$offset] = $value;
} else if (is_object($offset)) {
$this->objectStore[$offset] = $value;
} else if (is_array($offset)) {
$this->arrayKeys[] = $offset;
$this->arrayValues[] = $value;
} else if (null === $offset) {
$this->nullValue = $value;
$this->nullValueIsSet = true;
} else {
throw new \InvalidArgumentException("Unexpected offset type: " . Utils::printSafe($offset));
}
}
/**
* Offset to unset
* @link http://php.net/manual/en/arrayaccess.offsetunset.php
* @param mixed $offset <p>
* The offset to unset.
* </p>
* @return void
* @since 5.0.0
*/
public function offsetUnset($offset)
{
if (true === $offset) {
$this->trueValue = null;
$this->trueValueIsSet = false;
} else if (false === $offset) {
$this->falseValue = null;
$this->falseValueIsSet = false;
} else if (is_int($offset) || is_string($offset)) {
unset($this->standardStore[$offset]);
} else if (is_float($offset)) {
unset($this->floatStore[(string)$offset]);
} else if (is_object($offset)) {
$this->objectStore->offsetUnset($offset);
} else if (is_array($offset)) {
$index = array_search($offset, $this->arrayKeys, true);
if (false !== $index) {
array_splice($this->arrayKeys, $index, 1);
array_splice($this->arrayValues, $index, 1);
}
} else if (null === $offset) {
$this->nullValue = null;
$this->nullValueIsSet = false;
}
}
}