Combinations::get() - Code Metrics - Inspection of "#7: Update code syntax and add more checks with Gr..." - drupol/phpermutations - Measure and Improve Code Quality continuously with Scrutinizer

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by Pol

created 2017-08-15 19:23 UTC

Combinations::get() A

↳ Parent: Combinations

Complexity

Conditions	4
Paths	3

Size

Total Lines	17
Code Lines	12

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	20

Importance

Changes

Metric	Value
dl	0
loc	17
ccs	0
cts	17
cp	0
rs	9.2
c	0
b	0
f	0
cc	4
eloc	12
nc	3
nop	2
crap	20

<?php

namespace drupol\phpermutations\Generators;

use drupol\phpermutations\Iterators\Combinations as CombinationsIterator;

/**
 * Class Combinations.
 *
 * @package drupol\phpermutations\Generators
 *
 * @author Mark Wilson <[email protected]>
 */
class Combinations extends CombinationsIterator
{
    /**
     * Alias of the get() method.
     *
     * @return \Generator
     *   The prime generator.
     */
    public function generator()
    {
        return $this->get($this->getDataset(), $this->getLength());
    }

    /**
     * Convert the generator into an array.
     *
     * @return array
     *   The elements.
     */
    public function toArray()
    {
        $data = [];

        foreach ($this->generator() as $value) {
            $data[] = $value;
        }

        return $data;
    }

    /**
     * The generator.
     *
     * @param array $dataset
     *   The dataset.
     * @param int $length
     *   The length.
     *
     * @codingStandardsIgnoreStart
     * @return \Generator
     * @codingStandardsIgnoreEnd
     */
    protected function get(array $dataset, $length)
    {
        $originalLength = count($dataset);
        $remainingLength = $originalLength - $length + 1;
        for ($i = 0; $i < $remainingLength; $i++) {
            $current = $dataset[$i];
            if ($length === 1) {
                yield [$current];
            } else {
                $remaining = array_slice($dataset, $i + 1);
                foreach ($this->get($remaining, $length - 1) as $permutation) {
                    array_unshift($permutation, $current);
                    yield $permutation;
                }
            }
        }
    }
}


1			<?php
2
3			namespace drupol\phpermutations\Generators;
4
5			use drupol\phpermutations\Iterators\Combinations as CombinationsIterator;
6
7			/**
8			* Class Combinations.
9			*
10			* @package drupol\phpermutations\Generators
11			*
12			* @author Mark Wilson <[email protected]>
13			*/
14			class Combinations extends CombinationsIterator
15			{
16			/**
17			* Alias of the get() method.
18			*
19			* @return \Generator
20			* The prime generator.
21			*/
22			public function generator()
23			{
24			return $this->get($this->getDataset(), $this->getLength());
25			}
26
27			/**
28			* Convert the generator into an array.
29			*
30			* @return array
31			* The elements.
32			*/
33			public function toArray()
34			{
35			$data = [];
36
37			foreach ($this->generator() as $value) {
38			$data[] = $value;
39			}
40
41			return $data;
42			}
43
44			/**
45			* The generator.
46			*
47			* @param array $dataset
48			* The dataset.
49			* @param int $length
50			* The length.
51			*
52			* @codingStandardsIgnoreStart
53			* @return \Generator
54			* @codingStandardsIgnoreEnd
55			*/
56			protected function get(array $dataset, $length)
57			{
58			$originalLength = count($dataset);
59			$remainingLength = $originalLength - $length + 1;
60			for ($i = 0; $i < $remainingLength; $i++) {
61			$current = $dataset[$i];
62			if ($length === 1) {
63			yield [$current];
64			} else {
65			$remaining = array_slice($dataset, $i + 1);
66			foreach ($this->get($remaining, $length - 1) as $permutation) {
67			array_unshift($permutation, $current);
68			yield $permutation;
69			}
70			}
71			}
72			}
73			}
74

drupol / phpermutations

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Combinations::get() A

Complexity

Size

Duplication

Code Coverage

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