Combinatorics::count() - Code Metrics - Inspection of "Merge pull request #9 from drupol/interfaces-clean..." - drupol/phpermutations - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( a49478...ff8a6e )

by Pol

created 2018-04-20 09:05 UTC

Combinatorics::count() A

↳ Parent: Combinatorics

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	2
CRAP Score	1

Importance

Changes

Metric	Value
dl	0
loc	4
ccs	2
cts	2
cp	1
rs	10
c	0
b	0
f	0
cc	1
eloc	2
nc	1
nop	0
crap	1

<?php

namespace drupol\phpermutations;

/**
 * Class Combinatorics.
 */
abstract class Combinatorics implements \Countable
{
    /**
     * The dataset.
     *
     * @var array
     */
    protected $dataset;

    /**
     * The number of values in the dataset.
     *
     * @var int
     */
    protected $datasetCount;

    /**
     * The length.
     *
     * @var int
     */
    protected $length;

    /**
     * Combinatorics constructor.
     *
     * @param array    $dataset
     *                          The dataset
     * @param int|null $length
     *                          The length
     */
    public function __construct(array $dataset = [], $length = null)
    {
        $this->setDataset($dataset);
        $this->datasetCount = count($this->dataset);
        $this->setLength($length);
    }

    /**
     * Set the length.
     *
     * @param int $length
     *                    The length
     *
     * @return $this
     */
    public function setLength($length = null)

    {
        $length = (null === $length) ? $this->datasetCount : $length;
        $this->length = ($length > $this->datasetCount) ? $this->datasetCount : $length;

        return $this;
    }

    /**
     * Get the length.
     *
     * @return int
     *             The length
     */
    public function getLength()
    {
        return (int) $this->length;
    }

    /**
     * Set the dataset.
     *
     * @param array $dataset
     *                       The dataset
     *
     * @return $this
     */
    public function setDataset(array $dataset = [])
    {
        $this->dataset = $dataset;

        return $this;
    }

    /**
     * Get the dataset.
     *
     * @return mixed[]
     *                 The dataset
     */
    public function getDataset()
    {
        return $this->dataset;
    }

    /**
     * Count elements of an object.
     *
     * @return int
     *             The number of element
     */
    public function count()
    {
        return count($this->toArray());
    }

    /**
     * Convert the iterator into an array.
     *
     * @return array
     *               The elements
     */
    public function toArray()

    {
        $data = [];

        for ($this->rewind(); $this->valid(); $this->next()) {
abstract class User
{
    /** @return string */
    abstract public function getPassword();
}

class MyUser extends User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
            $data[] = $this->current();
abstract class User
{
    /** @return string */
    abstract public function getPassword();
}

class MyUser extends User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
        }

        return $data;
    }

    /**
     * {@inheritdoc}
     */
    public function key()

    {
        return $this->key;
    }

    /**
     * Compute the factorial of an integer.
     *
     * @param int $n
     *                   The number to get its factorial
     * @param int $total
     *                   The total
     *
     * @return int
     *             The factorial of $n
     */
    protected function fact($n, $total = 1)

    {
        return ($n < 2) ? $total : $this->fact($n - 1, $total * $n);
    }
}


1			<?php
2
3			namespace drupol\phpermutations;
4
5			/**
6			* Class Combinatorics.
7			*/
8			abstract class Combinatorics implements \Countable
9			{
10			/**
11			* The dataset.
12			*
13			* @var array
14			*/
15			protected $dataset;
16
17			/**
18			* The number of values in the dataset.
19			*
20			* @var int
21			*/
22			protected $datasetCount;
23
24			/**
25			* The length.
26			*
27			* @var int
28			*/
29			protected $length;
30
31			/**
32			* Combinatorics constructor.
33			*
34			* @param array $dataset
35			* The dataset
36			* @param int\|null $length
37			* The length
38			*/
39	52		public function __construct(array $dataset = [], $length = null)
40			{
41	52		$this->setDataset($dataset);
42	52		$this->datasetCount = count($this->dataset);
43	52		$this->setLength($length);
44	52		}
45
46			/**
47			* Set the length.
48			*
49			* @param int $length
50			* The length
51			*
52			* @return $this
53			*/
54	40	View Code Duplication	public function setLength($length = null)
			0 ignored issues – show Duplication introduced 2018-02-06 10:14 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...
55			{
56	40		$length = (null === $length) ? $this->datasetCount : $length;
57	40		$this->length = ($length > $this->datasetCount) ? $this->datasetCount : $length;
58
59	40		return $this;
60			}
61
62			/**
63			* Get the length.
64			*
65			* @return int
66			* The length
67			*/
68	14		public function getLength()
69			{
70	14		return (int) $this->length;
71			}
72
73			/**
74			* Set the dataset.
75			*
76			* @param array $dataset
77			* The dataset
78			*
79			* @return $this
80			*/
81	52		public function setDataset(array $dataset = [])
82			{
83	52		$this->dataset = $dataset;
84
85	52		return $this;
86			}
87
88			/**
89			* Get the dataset.
90			*
91			* @return mixed[]
92			* The dataset
93			*/
94	34		public function getDataset()
95			{
96	34		return $this->dataset;
97			}
98
99			/**
100			* Count elements of an object.
101			*
102			* @return int
103			* The number of element
104			*/
105	10		public function count()
106			{
107	10		return count($this->toArray());
108			}
109
110			/**
111			* Convert the iterator into an array.
112			*
113			* @return array
114			* The elements
115			*/
116	22	View Code Duplication	public function toArray()
			0 ignored issues – show Duplication introduced 2017-08-15 18:29 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...
117			{
118	22		$data = [];
119
120	22		for ($this->rewind(); $this->valid(); $this->next()) {
			0 ignored issues – show Bug introduced 2018-04-20 09:01 UTC by Report Bug Copy Issue Report It seems like you code against a specific sub-type and not the parent class `drupol\phpermutations\Combinatorics` as the method `rewind()` does only exist in the following sub-classes of `drupol\phpermutations\Combinatorics`: `drupol\phpermutations\Generators\Combinations`, `drupol\phpermutations\Generators\Fibonacci`, `drupol\phpermutations\Generators\FiniteGroup`, `drupol\phpermutations\Generators\NGrams`, `drupol\phpermutations\Generators\Perfect`, `drupol\phpermutations\Generators\Prime`, `drupol\phpermutations\Generators\PrimeFactors`, `drupol\phpermutations\Generators\Product`, `drupol\phpermutations\Generators\Shift`, `drupol\phpermutations\Iterators\Combinations`, `drupol\phpermutations\Iterators\Cycle`, `drupol\phpermutations\Iterators\Fibonacci`, `drupol\phpermutations\Iterators\FiniteGroup`, `drupol\phpermutations\Iterators\NGrams`, `drupol\phpermutations\Iterators\Perfect`, `drupol\phpermutations\Iterators\Prime`, `drupol\phpermutations\Iterators\PrimeFactors`, `drupol\phpermutations\Iterators\Product`, `drupol\phpermutations\Iterators\Rotation`, `drupol\phpermutations\Iterators\Shift`. Maybe you want to `instanceof` check for one of these explicitly? Let’s take a look at an example: abstract class User { /** @return string / abstract public function getPassword(); } class MyUser extends User { public function getPassword() { // return something } public function getDisplayName() { // return some name. } } class AuthSystem { public function authenticate(User $user) { $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName())); // do something. } } In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different sub-classes of User which does not have a getDisplayName() method, the code will break. Available Fixes Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } Add an additional type-check: class AuthSystem { public function authenticate(User $user) { if ($user instanceof MyUser) { $this->logger->info(/* ... /); } // or alternatively if ( ! $user instanceof MyUser) { throw new \LogicException( '$user must be an instance of MyUser, ' .'other instances are not supported.' ); } } } Note:* PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case. Add the method to the parent class: abstract class User { /** @return string / abstract public function getPassword(); /* @return string / abstract public function getDisplayName(); } Loading history... Bug introduced 2018-04-20 09:01 UTC by Report Bug Copy Issue Report It seems like you code against a specific sub-type and not the parent class `drupol\phpermutations\Combinatorics` as the method `valid()` does only exist in the following sub-classes of `drupol\phpermutations\Combinatorics`: `drupol\phpermutations\Generators\Combinations`, `drupol\phpermutations\Generators\Fibonacci`, `drupol\phpermutations\Generators\FiniteGroup`, `drupol\phpermutations\Generators\NGrams`, `drupol\phpermutations\Generators\Perfect`, `drupol\phpermutations\Generators\Prime`, `drupol\phpermutations\Generators\PrimeFactors`, `drupol\phpermutations\Generators\Product`, `drupol\phpermutations\Generators\Shift`, `drupol\phpermutations\Iterators\Combinations`, `drupol\phpermutations\Iterators\Cycle`, `drupol\phpermutations\Iterators\Fibonacci`, `drupol\phpermutations\Iterators\FiniteGroup`, `drupol\phpermutations\Iterators\NGrams`, `drupol\phpermutations\Iterators\Perfect`, `drupol\phpermutations\Iterators\Prime`, `drupol\phpermutations\Iterators\PrimeFactors`, `drupol\phpermutations\Iterators\Product`, `drupol\phpermutations\Iterators\Rotation`, `drupol\phpermutations\Iterators\Shift`. Maybe you want to `instanceof` check for one of these explicitly? Let’s take a look at an example: abstract class User { /* @return string / abstract public function getPassword(); } class MyUser extends User { public function getPassword() { // return something } public function getDisplayName() { // return some name. } } class AuthSystem { public function authenticate(User $user) { $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName())); // do something. } } In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different sub-classes of User which does not have a getDisplayName() method, the code will break. Available Fixes Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } Add an additional type-check: class AuthSystem { public function authenticate(User $user) { if ($user instanceof MyUser) { $this->logger->info(/* ... /); } // or alternatively if ( ! $user instanceof MyUser) { throw new \LogicException( '$user must be an instance of MyUser, ' .'other instances are not supported.' ); } } } Note:* PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case. Add the method to the parent class: abstract class User { /** @return string / abstract public function getPassword(); /* @return string / abstract public function getDisplayName(); } Loading history... Bug introduced 2018-04-20 09:01 UTC by Report Bug Copy Issue Report It seems like you code against a specific sub-type and not the parent class `drupol\phpermutations\Combinatorics` as the method `next()` does only exist in the following sub-classes of `drupol\phpermutations\Combinatorics`: `drupol\phpermutations\Generators\Combinations`, `drupol\phpermutations\Generators\Fibonacci`, `drupol\phpermutations\Generators\FiniteGroup`, `drupol\phpermutations\Generators\NGrams`, `drupol\phpermutations\Generators\Perfect`, `drupol\phpermutations\Generators\Prime`, `drupol\phpermutations\Generators\PrimeFactors`, `drupol\phpermutations\Generators\Product`, `drupol\phpermutations\Generators\Shift`, `drupol\phpermutations\Iterators\Combinations`, `drupol\phpermutations\Iterators\Cycle`, `drupol\phpermutations\Iterators\Fibonacci`, `drupol\phpermutations\Iterators\FiniteGroup`, `drupol\phpermutations\Iterators\NGrams`, `drupol\phpermutations\Iterators\Perfect`, `drupol\phpermutations\Iterators\Prime`, `drupol\phpermutations\Iterators\PrimeFactors`, `drupol\phpermutations\Iterators\Product`, `drupol\phpermutations\Iterators\Rotation`, `drupol\phpermutations\Iterators\Shift`. Maybe you want to `instanceof` check for one of these explicitly? Let’s take a look at an example: abstract class User { /* @return string / abstract public function getPassword(); } class MyUser extends User { public function getPassword() { // return something } public function getDisplayName() { // return some name. } } class AuthSystem { public function authenticate(User $user) { $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName())); // do something. } } In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different sub-classes of User which does not have a getDisplayName() method, the code will break. Available Fixes Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } Add an additional type-check: class AuthSystem { public function authenticate(User $user) { if ($user instanceof MyUser) { $this->logger->info(/* ... /); } // or alternatively if ( ! $user instanceof MyUser) { throw new \LogicException( '$user must be an instance of MyUser, ' .'other instances are not supported.' ); } } } Note:* PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case. Add the method to the parent class: abstract class User { /** @return string / abstract public function getPassword(); /* @return string */ abstract public function getDisplayName(); } Loading history...
121	22		$data[] = $this->current();
			0 ignored issues – show Bug introduced 2018-04-20 09:01 UTC by Report Bug Copy Issue Report It seems like you code against a specific sub-type and not the parent class `drupol\phpermutations\Combinatorics` as the method `current()` does only exist in the following sub-classes of `drupol\phpermutations\Combinatorics`: `drupol\phpermutations\Generators\Combinations`, `drupol\phpermutations\Generators\Fibonacci`, `drupol\phpermutations\Generators\FiniteGroup`, `drupol\phpermutations\Generators\NGrams`, `drupol\phpermutations\Generators\Perfect`, `drupol\phpermutations\Generators\Prime`, `drupol\phpermutations\Generators\PrimeFactors`, `drupol\phpermutations\Generators\Product`, `drupol\phpermutations\Generators\Shift`, `drupol\phpermutations\Iterators\Combinations`, `drupol\phpermutations\Iterators\Cycle`, `drupol\phpermutations\Iterators\Fibonacci`, `drupol\phpermutations\Iterators\FiniteGroup`, `drupol\phpermutations\Iterators\NGrams`, `drupol\phpermutations\Iterators\Perfect`, `drupol\phpermutations\Iterators\Prime`, `drupol\phpermutations\Iterators\PrimeFactors`, `drupol\phpermutations\Iterators\Product`, `drupol\phpermutations\Iterators\Rotation`, `drupol\phpermutations\Iterators\Shift`. Maybe you want to `instanceof` check for one of these explicitly? Let’s take a look at an example: abstract class User { /** @return string / abstract public function getPassword(); } class MyUser extends User { public function getPassword() { // return something } public function getDisplayName() { // return some name. } } class AuthSystem { public function authenticate(User $user) { $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName())); // do something. } } In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different sub-classes of User which does not have a getDisplayName() method, the code will break. Available Fixes Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } Add an additional type-check: class AuthSystem { public function authenticate(User $user) { if ($user instanceof MyUser) { $this->logger->info(/* ... /); } // or alternatively if ( ! $user instanceof MyUser) { throw new \LogicException( '$user must be an instance of MyUser, ' .'other instances are not supported.' ); } } } Note:* PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case. Add the method to the parent class: abstract class User { /** @return string / abstract public function getPassword(); /* @return string */ abstract public function getDisplayName(); } Loading history...
122			}
123
124	22		return $data;
125			}
126
127			/**
128			* {@inheritdoc}
129			*/
130	16		public function key()
			0 ignored issues – show Documentation introduced 2018-04-20 09:01 UTC by Report Bug Copy Issue Report The return type could not be reliably inferred; please add a `@return` annotation. Our type inference engine in quite powerful, but sometimes the code does not provide enough clues to go by. In these cases we request you to add a `@return` annotation as described here. Loading history...
131			{
132	16		return $this->key;
133			}
134
135			/**
136			* Compute the factorial of an integer.
137			*
138			* @param int $n
139			* The number to get its factorial
140			* @param int $total
141			* The total
142			*
143			* @return int
144			* The factorial of $n
145			*/
146	10		protected function fact($n, $total = 1)
			0 ignored issues – show Comprehensibility introduced 2017-08-15 18:29 UTC by Report Bug Copy Issue Report Avoid variables with short names like $n. Configured minimum length is 3. Short variable names may make your code harder to understand. Variable names should be self-descriptive. This check looks for variable names who are shorter than a configured minimum. Loading history...
147			{
148	10		return ($n < 2) ? $total : $this->fact($n - 1, $total * $n);
149			}
150			}
151

drupol / phpermutations

Push — master ( a49478...ff8a6e )

Combinatorics::count() A

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