Reduction::of() - Code Metrics - loophp/fpt - Measure and Improve Code Quality continuously with Scrutinizer

Reduction::of() A
last analyzed 2022-03-30 13:21 UTC

↳ Parent: Reduction

Complexity

Conditions	2
Paths	1

Size

Total Lines	17
Code Lines	6

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	6
CRAP Score	2

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	2
eloc	6
c	1
b	0
f	0
nc	1
nop	0
dl	0
loc	17
ccs	6
cts	6
cp	1
crap	2
rs	10

<?php

/**
 * For the full copyright and license information, please view
 * the LICENSE file that was distributed with this source code.
 */

declare(strict_types=1);

namespace loophp\fpt;

use Closure;
use Generator;

// phpcs:disable Generic.Files.LineLength.TooLong

/**
 * @template TKey
 * @template T
 * @template U
 *
 * @psalm-immutable
 */
final class Reduction
{
    /**
     * @pure
     */
    public static function of(): Closure
    {
        return
            /**
             * @param callable(U, T, TKey, iterable<TKey, T>): U $callable
             */
            static fn (callable $callable): Closure =>
                /**
                 * @param U $accumulator
                 */
                static fn ($accumulator): Closure =>
                    /**
                     * @param iterable<TKey, T> $iterable
                     */
                    static function (iterable $iterable) use ($callable, $accumulator): Generator {
                        foreach ($iterable as $key => $item) {
                            yield $key => $accumulator = $callable($accumulator, $item, $key, $iterable);
                        }
                    };
    }
}


1		<?php
2
3		/**
4		* For the full copyright and license information, please view
5		* the LICENSE file that was distributed with this source code.
6		*/
7
8		declare(strict_types=1);
9
10		namespace loophp\fpt;
11
12		use Closure;
13		use Generator;
14
15		// phpcs:disable Generic.Files.LineLength.TooLong
16
17		/**
18		* @template TKey
19		* @template T
20		* @template U
21		*
22		* @psalm-immutable
23		*/
24		final class Reduction
25		{
26		/**
27		* @pure
28		*/
29	3	public static function of(): Closure
30		{
31		return
32		/**
33		* @param callable(U, T, TKey, iterable<TKey, T>): U $callable
34		*/
35	3	static fn (callable $callable): Closure =>
36		/**
37		* @param U $accumulator
38		*/
39	3	static fn ($accumulator): Closure =>
40		/**
41		* @param iterable<TKey, T> $iterable
42		*/
43	3	static function (iterable $iterable) use ($callable, $accumulator): Generator {
44	3	foreach ($iterable as $key => $item) {
45	3	yield $key => $accumulator = $callable($accumulator, $item, $key, $iterable);
46		}
47	3	};
48		}
49		}
50

loophp / fpt

Reduction::of() A last analyzed 2022-03-30 13:21 UTC

Complexity

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Importance

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Reduction::of() A
last analyzed 2022-03-30 13:21 UTC