22680098232

Committed 04 Mar 2026 05:02PM UTC coverage: 97.34% (-1.0%) from 98.375%

Build # 22680098232

Build Type

push

github

Committed by

azjezz

Commit Message

perf: replace PSL calls with native PHP builtins and fix O(n2) algorithms

Signed-off-by: azjezz <azjezz@protonmail.com>

Coverage Stats

319 of 355 new or added lines in 90 files covered. (89.86%)

64 existing lines in 12 files now uncovered.

9258 of 9511 relevant lines covered (97.34%)

34.97 hits per line

Source File
Press 'n' to go to next uncovered line, 'b' for previous

15.38

/src/Psl/Vec/slice.php

<?php

declare(strict_types=1);

namespace Psl\Vec;

use function array_slice;
use function array_values;
use function is_array;

/**
 * Takes a slice from an iterable.
 *
 * Examples:
 *
 *      Vec\slice([-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5], 5)
 *      => Vec(0, 1, 2, 3, 4, 5)
 *
 *      Vec\slice([-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5], 5, 3)
 *      => Vec(0, 1, 2)
 *
 * @template T
 *
 * @param iterable<T> $iterable Iterable to take the slice from
 * @param int<0, max> $start Start offset
 * @param null|int<0, max> $length Length (if not specified all remaining values from the array are used)
 *
 * @return list<T>
 */
function slice(iterable $iterable, int $start, null|int $length = null): array
{
    if (is_array($iterable)) {
        return array_values(array_slice($iterable, $start, $length));
    }

    $result = [];
    if (0 === $length) {
        return $result;
    }

    $i = 0;
    foreach ($iterable as $value) {
        if ($i++ < $start) {
            continue;
        }

        $result[] = $value;
        if (null !== $length && $i >= ($start + $length)) {
            break;
        }
    }

    return $result;
}

1	<?php
2
3	declare(strict_types=1);
4
5	namespace Psl\Vec;
6
7	use function array_slice;
8	use function array_values;
9	use function is_array;
10
11	/**
12	* Takes a slice from an iterable.
13	*
14	* Examples:
15	*
16	* Vec\slice([-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5], 5)
17	* => Vec(0, 1, 2, 3, 4, 5)
18	*
19	* Vec\slice([-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5], 5, 3)
20	* => Vec(0, 1, 2)
21	*
22	* @template T
23	*
24	* @param iterable<T> $iterable Iterable to take the slice from
25	* @param int<0, max> $start Start offset
26	* @param null\|int<0, max> $length Length (if not specified all remaining values from the array are used)
27	*
28	* @return list<T>
29	*/
30	function slice(iterable $iterable, int $start, null\|int $length = null): array
31	{
32	if (is_array($iterable)) {	10✔
33	return array_values(array_slice($iterable, $start, $length));	10✔
34	}
35
UNCOV 36	$result = [];	×
UNCOV 37	if (0 === $length) {	×
UNCOV 38	return $result;	×
39	}
40
UNCOV 41	$i = 0;	×
UNCOV 42	foreach ($iterable as $value) {	×
UNCOV 43	if ($i++ < $start) {	×
UNCOV 44	continue;	×
45	}
46
UNCOV 47	$result[] = $value;	×
UNCOV 48	if (null !== $length && $i >= ($start + $length)) {	×
UNCOV 49	break;	×
50	}
51	}
52
UNCOV 53	return $result;	×
54	}

azjezz / psl / 22680098232

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