aboutsummaryrefslogtreecommitdiffstats
path: root/vendor/ramsey/collection/src/AbstractCollection.php
blob: 2facf0e8917a8336429c8b52335fe0f55c43fb2d (plain) (blame)
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
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
<?php

/**
 * This file is part of the ramsey/collection library
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 *
 * @copyright Copyright (c) Ben Ramsey <ben@benramsey.com>
 * @license http://opensource.org/licenses/MIT MIT
 */

declare(strict_types=1);

namespace Ramsey\Collection;

use Closure;
use Ramsey\Collection\Exception\CollectionMismatchException;
use Ramsey\Collection\Exception\InvalidArgumentException;
use Ramsey\Collection\Exception\InvalidSortOrderException;
use Ramsey\Collection\Exception\OutOfBoundsException;
use Ramsey\Collection\Tool\TypeTrait;
use Ramsey\Collection\Tool\ValueExtractorTrait;
use Ramsey\Collection\Tool\ValueToStringTrait;

use function array_filter;
use function array_map;
use function array_merge;
use function array_search;
use function array_udiff;
use function array_uintersect;
use function current;
use function end;
use function in_array;
use function reset;
use function sprintf;
use function unserialize;
use function usort;

/**
 * This class provides a basic implementation of `CollectionInterface`, to
 * minimize the effort required to implement this interface
 *
 * @template T
 * @template-extends AbstractArray<T>
 * @template-implements CollectionInterface<T>
 */
abstract class AbstractCollection extends AbstractArray implements CollectionInterface
{
    use TypeTrait;
    use ValueToStringTrait;
    use ValueExtractorTrait;

    /**
     * @inheritDoc
     */
    public function add($element): bool
    {
        $this[] = $element;

        return true;
    }

    /**
     * @inheritDoc
     */
    public function contains($element, bool $strict = true): bool
    {
        return in_array($element, $this->data, $strict);
    }

    /**
     * @inheritDoc
     */
    public function offsetSet($offset, $value): void
    {
        if ($this->checkType($this->getType(), $value) === false) {
            throw new InvalidArgumentException(
                'Value must be of type ' . $this->getType() . '; value is '
                . $this->toolValueToString($value)
            );
        }

        if ($offset === null) {
            $this->data[] = $value;
        } else {
            $this->data[$offset] = $value;
        }
    }

    /**
     * @inheritDoc
     */
    public function remove($element): bool
    {
        if (($position = array_search($element, $this->data, true)) !== false) {
            unset($this->data[$position]);

            return true;
        }

        return false;
    }

    /**
     * @inheritDoc
     */
    public function column(string $propertyOrMethod): array
    {
        $temp = [];

        foreach ($this->data as $item) {
            /** @var mixed $value */
            $value = $this->extractValue($item, $propertyOrMethod);

            /** @psalm-suppress MixedAssignment */
            $temp[] = $value;
        }

        return $temp;
    }

    /**
     * @inheritDoc
     */
    public function first()
    {
        if ($this->isEmpty()) {
            throw new OutOfBoundsException('Can\'t determine first item. Collection is empty');
        }

        reset($this->data);

        /** @var T $first */
        $first = current($this->data);

        return $first;
    }

    /**
     * @inheritDoc
     */
    public function last()
    {
        if ($this->isEmpty()) {
            throw new OutOfBoundsException('Can\'t determine last item. Collection is empty');
        }

        /** @var T $item */
        $item = end($this->data);
        reset($this->data);

        return $item;
    }

    public function sort(string $propertyOrMethod, string $order = self::SORT_ASC): CollectionInterface
    {
        if (!in_array($order, [self::SORT_ASC, self::SORT_DESC], true)) {
            throw new InvalidSortOrderException('Invalid sort order given: ' . $order);
        }

        $collection = clone $this;

        usort(
            $collection->data,
            /**
             * @param T $a
             * @param T $b
             */
            function ($a, $b) use ($propertyOrMethod, $order): int {
                /** @var mixed $aValue */
                $aValue = $this->extractValue($a, $propertyOrMethod);

                /** @var mixed $bValue */
                $bValue = $this->extractValue($b, $propertyOrMethod);

                return ($aValue <=> $bValue) * ($order === self::SORT_DESC ? -1 : 1);
            }
        );

        return $collection;
    }

    public function filter(callable $callback): CollectionInterface
    {
        $collection = clone $this;
        $collection->data = array_merge([], array_filter($collection->data, $callback));

        return $collection;
    }

    /**
     * {@inheritdoc}
     */
    public function where(string $propertyOrMethod, $value): CollectionInterface
    {
        return $this->filter(function ($item) use ($propertyOrMethod, $value) {
            /** @var mixed $accessorValue */
            $accessorValue = $this->extractValue($item, $propertyOrMethod);

            return $accessorValue === $value;
        });
    }

    public function map(callable $callback): CollectionInterface
    {
        return new Collection('mixed', array_map($callback, $this->data));
    }

    public function diff(CollectionInterface $other): CollectionInterface
    {
        $this->compareCollectionTypes($other);

        $diffAtoB = array_udiff($this->data, $other->toArray(), $this->getComparator());
        $diffBtoA = array_udiff($other->toArray(), $this->data, $this->getComparator());

        /** @var array<array-key, T> $diff */
        $diff = array_merge($diffAtoB, $diffBtoA);

        $collection = clone $this;
        $collection->data = $diff;

        return $collection;
    }

    public function intersect(CollectionInterface $other): CollectionInterface
    {
        $this->compareCollectionTypes($other);

        /** @var array<array-key, T> $intersect */
        $intersect = array_uintersect($this->data, $other->toArray(), $this->getComparator());

        $collection = clone $this;
        $collection->data = $intersect;

        return $collection;
    }

    public function merge(CollectionInterface ...$collections): CollectionInterface
    {
        $temp = [$this->data];

        foreach ($collections as $index => $collection) {
            if (!$collection instanceof static) {
                throw new CollectionMismatchException(
                    sprintf('Collection with index %d must be of type %s', $index, static::class)
                );
            }

            // When using generics (Collection.php, Set.php, etc),
            // we also need to make sure that the internal types match each other
            if ($collection->getType() !== $this->getType()) {
                throw new CollectionMismatchException(
                    sprintf('Collection items in collection with index %d must be of type %s', $index, $this->getType())
                );
            }

            $temp[] = $collection->toArray();
        }

        /** @var array<array-key, T> $merge */
        $merge = array_merge(...$temp);

        $collection = clone $this;
        $collection->data = $merge;

        return $collection;
    }

    /**
     * @inheritDoc
     */
    public function unserialize($serialized): void
    {
        /** @var array<array-key, T> $data */
        $data = unserialize($serialized, ['allowed_classes' => [$this->getType()]]);

        $this->data = $data;
    }

    /**
     * @param CollectionInterface<T> $other
     */
    private function compareCollectionTypes(CollectionInterface $other): void
    {
        if (!$other instanceof static) {
            throw new CollectionMismatchException('Collection must be of type ' . static::class);
        }

        // When using generics (Collection.php, Set.php, etc),
        // we also need to make sure that the internal types match each other
        if ($other->getType() !== $this->getType()) {
            throw new CollectionMismatchException('Collection items must be of type ' . $this->getType());
        }
    }

    private function getComparator(): Closure
    {
        return /**
             * @param T $a
             * @param T $b
             */
            function ($a, $b): int {
                // If the two values are object, we convert them to unique scalars.
                // If the collection contains mixed values (unlikely) where some are objects
                // and some are not, we leave them as they are.
                // The comparator should still work and the result of $a < $b should
                // be consistent but unpredictable since not documented.
                if (is_object($a) && is_object($b)) {
                    $a = spl_object_id($a);
                    $b = spl_object_id($b);
                }

                return $a === $b ? 0 : ($a < $b ? 1 : -1);
            };
    }
}