LazyCollection::merge() - Code Metrics - jakzal/collections - Measure and Improve Code Quality continuously with Scrutinizer

LazyCollection::merge() A
last analyzed 2020-04-06 20:43 UTC

↳ Parent: LazyCollection

Complexity

Conditions	3
Paths	1

Size

Total Lines	8
Code Lines	5

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	5
CRAP Score	3

Importance

Changes	2
Bugs	0	Features	0

Metric	Value
cc	3
eloc	5
c	2
b	0
f	0
nc	1
nop	1
dl	0
loc	8
ccs	5
cts	5
cp	1
crap	3
rs	10

<?php declare(strict_types=1);

namespace Zalas\Collection;

use Closure;
use Traversable;

final class LazyCollection implements Collection
{
    private $elements;

    public function __construct(Traversable $elements)
    {
        $this->elements = $elements;
    }

    public function getIterator(): Traversable
    {
        yield from $this->elements;
    }

    public function merge(Collection $other): Collection
    {
        return self::createFromClosure(function () use ($other) {
            foreach ($this as $e) {
                yield $e;
            }
            foreach ($other as $e) {
                yield $e;
            }
        });
    }

    public function filter(callable $f): Collection
    {
        return self::createFromClosure(function () use ($f) {
            foreach ($this as $e) {
                if ($f($e)) {
                    yield $e;
                }
            }
        });
    }

    public function map(callable $f): Collection
    {
        return self::createFromClosure(function () use ($f) {
            foreach ($this as $e) {
                yield $f($e);
            }
        });
    }

    /**
     * @param mixed $initial
     * @param callable $f
     *
     * @return mixed
     */
    public function reduce($initial, callable $f)
    {
        return \array_reduce(\iterator_to_array($this), $f, $initial);
    }

    private static function createFromClosure(Closure $f): Collection
    {
        return new self($f());
    }
}


1		<?php declare(strict_types=1);
2
3		namespace Zalas\Collection;
4
5		use Closure;
6		use Traversable;
7
8		final class LazyCollection implements Collection
9		{
10		private $elements;
11
12	10	public function __construct(Traversable $elements)
13		{
14	10	$this->elements = $elements;
15		}
16
17	9	public function getIterator(): Traversable
18		{
19	9	yield from $this->elements;
20		}
21
22	2	public function merge(Collection $other): Collection
23		{
24		return self::createFromClosure(function () use ($other) {
25	2	foreach ($this as $e) {
26	2	yield $e;
27		}
28	2	foreach ($other as $e) {
29	2	yield $e;
30		}
31	2	});
32		}
33
34	2	public function filter(callable $f): Collection
35		{
36		return self::createFromClosure(function () use ($f) {
37	2	foreach ($this as $e) {
38	2	if ($f($e)) {
39	2	yield $e;
40		}
41		}
42	2	});
43		}
44
45	2	public function map(callable $f): Collection
46		{
47		return self::createFromClosure(function () use ($f) {
48	2	foreach ($this as $e) {
49	2	yield $f($e);
50		}
51	2	});
52		}
53
54		/**
55		* @param mixed $initial
56		* @param callable $f
57		*
58		* @return mixed
59		*/
60	1	public function reduce($initial, callable $f)
61		{
62	1	return \array_reduce(\iterator_to_array($this), $f, $initial);
63		}
64
65	6	private static function createFromClosure(Closure $f): Collection
66		{
67	6	return new self($f());
68		}
69		}
70

jakzal / collections

LazyCollection::merge() A last analyzed 2020-04-06 20:43 UTC

Complexity

Size

Duplication

Code Coverage

Importance

Duplication Side-by-Side

Filter issues like

LazyCollection::merge() A
last analyzed 2020-04-06 20:43 UTC