Combinations::_next() - Code Metrics - Inspection of "Initial commit." - drupol/phpermutations - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( f42091...b2313d )

by Pol

created 2016-12-24 20:58 UTC

Combinations::_next() B

↳ Parent: Combinations

Complexity

Conditions	5
Paths	6

Size

Total Lines	15
Code Lines	10

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	12
CRAP Score	5

Importance

Changes

Metric	Value
dl	0
loc	15
ccs	12
cts	12
cp	1
rs	8.8571
c	0
b	0
f	0
cc	5
eloc	10
nc	6
nop	0
crap	5

<?php

namespace drupol\phpermutations\Iterators;

use drupol\phpermutations\Combinatorics;

/**
 * Class Combinations.
 *
 * @package drupol\phpermutations\Iterators
 */
class Combinations extends Combinatorics implements \Iterator {

  /**
   * @var array
   */
  protected $c = array();


  /**
   * @var int
   */
  protected $count = 0;

  /**
   * @var int
   */
  protected $pos = 0;

  /**
   * Combinations constructor.
   *
   * @param array $dataset
   * @param null $length
   */
  public function __construct(array $dataset = array(), $length = NULL) {

    parent::__construct($dataset, $length);
    $this->rewind();
  }

  /**
   * @return int
   */
  public function key() {
    return $this->pos;
  }

  /**
   * @return array
   */
  public function current() {
    $r = array();

    for ($i = 0; $i < $this->length; $i++) {
      $r[] = $this->dataset[$this->c[$i]];
    }
    return $r;
  }

  /**
   *
   */
  public function next() {
    if ($this->_next()) {
      $this->pos++;
    }
    else {
      $this->pos = -1;
    }
  }

  /**
   *
   */
  public function rewind() {
    $this->c = range(0, $this->length);
    $this->pos = 0;
  }

  /**
   * @return bool
   */
  public function valid() {
    return $this->pos >= 0;
  }

  /**
   * @return bool
   */
  protected function _next() {

    $i = $this->length - 1;
    while ($i >= 0 && $this->c[$i] == $this->datasetCount - $this->length + $i) {
      $i--;
    }
    if ($i < 0) {
      return FALSE;

    }
    $this->c[$i]++;
    while ($i++ < $this->length - 1) {
      $this->c[$i] = $this->c[$i - 1] + 1;
    }

    return TRUE;

  }

  /**
   * @return array
   */
  public function toArray() {

    $data = [];

    for ($this->rewind(); $this->valid(); $this->next()) {
      $data[] = $this->current();
    }

    return $data;
  }

  /**
   * @return int
   */
  public function count() {
    return $this->fact(count($this->getDataset())) / $this->fact($this->getLength());
  }

}


1			<?php
2
3			namespace drupol\phpermutations\Iterators;
4
5			use drupol\phpermutations\Combinatorics;
6
7			/**
8			* Class Combinations.
9			*
10			* @package drupol\phpermutations\Iterators
11			*/
12			class Combinations extends Combinatorics implements \Iterator {
13
14			/**
15			* @var array
16			*/
17			protected $c = array();
			0 ignored issues – show Comprehensibility introduced 2016-12-24 21:00 UTC by Report Bug Copy Issue Report Avoid variables with short names like $c. Configured minimum length is 3. Short variable names may make your code harder to understand. Variable names should be self-descriptive. This check looks for variable names who are shorter than a configured minimum. Loading history...
18
19			/**
20			* @var int
21			*/
22			protected $count = 0;
23
24			/**
25			* @var int
26			*/
27			protected $pos = 0;
28
29			/**
30			* Combinations constructor.
31			*
32			* @param array $dataset
33			* @param null $length
34			*/
35	6		public function __construct(array $dataset = array(), $length = NULL) {
			1 ignored issue – show Coding Style introduced 2016-12-24 21:00 UTC by Report Bug Copy Issue Report `TRUE`, `FALSE` and `NULL` must be lowercase; expected `null`, but found `NULL`. Loading history...
36	6		parent::__construct($dataset, $length);
37	6		$this->rewind();
38	6		}
39
40			/**
41			* @return int
42			*/
43			public function key() {
44			return $this->pos;
45			}
46
47			/**
48			* @return array
49			*/
50	6		public function current() {
51	6		$r = array();
			0 ignored issues – show Comprehensibility introduced 2016-12-24 21:00 UTC by Report Bug Copy Issue Report Avoid variables with short names like $r. Configured minimum length is 3. Short variable names may make your code harder to understand. Variable names should be self-descriptive. This check looks for variable names who are shorter than a configured minimum. Loading history...
52	6		for ($i = 0; $i < $this->length; $i++) {
53	6		$r[] = $this->dataset[$this->c[$i]];
54	6		}
55	6		return $r;
56			}
57
58			/**
59			*
60			*/
61	6		public function next() {
62	6		if ($this->_next()) {
63	4		$this->pos++;
64	4		}
65			else {
66	6		$this->pos = -1;
67			}
68	6		}
69
70			/**
71			*
72			*/
73	6		public function rewind() {
74	6		$this->c = range(0, $this->length);
75	6		$this->pos = 0;
76	6		}
77
78			/**
79			* @return bool
80			*/
81	6		public function valid() {
82	6		return $this->pos >= 0;
83			}
84
85			/**
86			* @return bool
87			*/
88	6		protected function _next() {
			0 ignored issues – show Coding Style Naming introduced 2016-12-24 21:00 UTC by Report Bug Copy Issue Report The method _next is not named in camelCase. This check marks method names that have not been written in camelCase. In camelCase names are written without any punctuation, the start of each new word being marked by a capital letter. Thus the name database connection string becomes `databaseConnectionString`. Loading history...
89	6		$i = $this->length - 1;
90	6		while ($i >= 0 && $this->c[$i] == $this->datasetCount - $this->length + $i) {
91	6		$i--;
92	6		}
93	6		if ($i < 0) {
94	6		return FALSE;
			1 ignored issue – show Coding Style introduced 2016-12-24 21:00 UTC by Report Bug Copy Issue Report `TRUE`, `FALSE` and `NULL` must be lowercase; expected `false`, but found `FALSE`. Loading history...
95			}
96	4		$this->c[$i]++;
97	4		while ($i++ < $this->length - 1) {
98	4		$this->c[$i] = $this->c[$i - 1] + 1;
99	4		}
100
101	4		return TRUE;
			0 ignored issues – show Coding Style introduced 2016-12-24 21:00 UTC by Report Bug Copy Issue Report `TRUE`, `FALSE` and `NULL` must be lowercase; expected `true`, but found `TRUE`. Loading history...
102			}
103
104			/**
105			* @return array
106			*/
107	6	View Code Duplication	public function toArray() {
			0 ignored issues – show Duplication introduced 2016-12-24 21:00 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
108	6		$data = [];
109
110	6		for ($this->rewind(); $this->valid(); $this->next()) {
111	6		$data[] = $this->current();
112	6		}
113
114	6		return $data;
115			}
116
117			/**
118			* @return int
119			*/
120	3		public function count() {
121	3		return $this->fact(count($this->getDataset())) / $this->fact($this->getLength());
122			}
123
124			}
125

drupol / phpermutations

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Combinations::_next() B

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