Functional::reduce() - Code Metrics - MBHFramework/structures - Measure and Improve Code Quality continuously with Scrutinizer

Functional::reduce() A
last analyzed 2018-09-26 02:10 UTC

↳ Parent: Functional

Complexity

Conditions	2
Paths	2

Size

Total Lines	7
Code Lines	3

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
eloc	3
dl	0
loc	7
rs	10
c	0
b	0
f	0
cc	2
nc	2
nop	2

<?php namespace Mbh\Collection\Traits;

use Mbh\Collection\Interfaces\Collection as CollectionInterface;
use Mbh\Collection\FixedArray;
use Mbh\Collection\CallbackHeap;
use Mbh\Iterator\SliceIterator;
use Mbh\Iterator\ConcatIterator;
use SplFixedArray;
use SplHeap;
use SplStack;
use LimitIterator;
use Iterator;
use ArrayAccess;
use Countable;
use CallbackFilterIterator;
use JsonSerializable;
use RuntimeException;
use Traversable;
use ReflectionClass;
use UnderflowException;
use OutOfRangeException;

/**
 * MBHFramework
 *
 * @link      https://github.com/MBHFramework/mbh-framework
 * @copyright Copyright (c) 2017 Ulises Jeremias Cornejo Fandos
 * @license   https://github.com/MBHFramework/mbh-framework/blob/master/LICENSE (MIT License)
 */

trait Functional
{
    use Functional\InPlaceSort {
        Functional\InPlaceSort::heapSort as heapSortWithCallback;
    }

    protected function getSplFixedArrayAndSize()
    {
        $count = $this->count();
        return [new SplFixedArray($count), $count];
    }

    /**
     * @inheritDoc
     */
    public function any(callable $callback)
    {
        $count = $this->count();

        for ($i = 0; $i < $count; $i++) {
            $this[$i] = $callback($this[$i], $i, $this);
        }

        return $this;
    }

    /**
     * @inheritDoc
     */
    public function concat(...$args)
    {
        array_unshift($args, $this);

        // Concat this iterator, and variadic args
        $class = new ReflectionClass('Mbh\Iterator\ConcatIterator');
        $concatIt = $class->newInstanceArgs($args);

        // Create as new immutable's iterator
        return static::fromArray($concatIt->toArray());
    }

    /**
     * @inheritDoc
     */
    public function find(callable $callback)
    {
        foreach ($this as $i => $elem) {
            if ($callback($elem, $i, $this)) {
                return $elem;
            }
        }
    }

    /**
     * @inheritDoc
     */
    public function filter(callable $callback)
    {
        list($sfa, $count) = $this->getSplFixedArrayAndSize();

        $newCount = 0;
        foreach ($this as $elem) {
            if ($callback($elem)) {
                $sfa[$newCount++] = $elem;
            }
        }

        $sfa->setSize($newCount);
        return static::fromItems($sfa);
    }

    /**
     * @inheritDoc
     */
    public function heapSort(SplHeap $heap)
    {
        foreach ($this as $item) {
            $heap->insert($item);
        }

        $this->setValues(static::fromItems($heap));

        return $this;
    }

    /**
     * @inheritDoc
     */
    public function join(string $token = ',', string $secondToken = null): string
    {
        $str = "";
        if ($secondToken !== null) {
            foreach ($this as $i => $elem) {
                $str .= $token . (string) $elem . $secondToken;
            }
        } else {
            $this->rewind();
            while ($this->valid()) {
                $str .= (string) $this->current();
                $this->next();
                if ($this->valid()) {
                    $str .= $token;
                }
            }
        }

        return $str;
    }

    /**
     * @inheritDoc
     */
    public function map(callable $callback)
    {
        list($sfa, $count) = $this->getSplFixedArrayAndSize();

        for ($i = 0; $i < $count; $i++) {
            $sfa[$i] = $callback($this[$i], $i, $this);
        }

        return static::fromItems($sfa);
    }

    /**
     * @inheritDoc
     */
    public function reduce(callable $callback, $accumulator = null)
    {
        foreach ($this as $i => $elem) {
            $accumulator = $callback($accumulator, $elem, $i, $this);
        }

        return $accumulator;
    }

    /**
     * @inheritDoc
     */
    public function search($value)
    {
        foreach ($this as $i => $elem) {
            if ($value === $elem) {
                return $i;
            }
        }
    }

    /**
     * @inheritDoc
     */
    public function slice(int $begin = 0, int $length = null)
    {
        $end = $begin + $length;
        $it = new SliceIterator($this->getValues(), $begin, $end);
        return static::fromArray($it->toArray());
    }

    /**
     * @inheritDoc
     */
    public function splice(int $begin = 0, int $length = null, $replacement = [])
    {
        $input = $this->toArray();
        array_splice($input, $begin, $length, $replacement);
        return static::fromArray($input);
    }

    /**
     * @inheritDoc
     */
    public function sort(callable $callback = null)
    {
        if ($callback) {
            return $this->mergeSort($callback);
        }

        return $this->arraySort();
    }

    /**
     * @inheritDoc
     */
    public function walk(callable $callback)
    {
        foreach ($this as $i => $elem) {
            $callback($elem, $i, $this);
        }

        return $this;
    }

    abstract public static function fromItems(Traversable $array);

    abstract protected function getValues(): Traversable;

    abstract public function count(): int;

    abstract public function current();

    abstract public function next();

    abstract public function rewind();

    abstract public function valid();
}


1			<?php namespace Mbh\Collection\Traits;
2
3			use Mbh\Collection\Interfaces\Collection as CollectionInterface;
4			use Mbh\Collection\FixedArray;
5			use Mbh\Collection\CallbackHeap;
6			use Mbh\Iterator\SliceIterator;
7			use Mbh\Iterator\ConcatIterator;
8			use SplFixedArray;
9			use SplHeap;
10			use SplStack;
11			use LimitIterator;
12			use Iterator;
13			use ArrayAccess;
14			use Countable;
15			use CallbackFilterIterator;
16			use JsonSerializable;
17			use RuntimeException;
18			use Traversable;
19			use ReflectionClass;
20			use UnderflowException;
21			use OutOfRangeException;
22
23			/**
24			* MBHFramework
25			*
26			* @link https://github.com/MBHFramework/mbh-framework
27			* @copyright Copyright (c) 2017 Ulises Jeremias Cornejo Fandos
28			* @license https://github.com/MBHFramework/mbh-framework/blob/master/LICENSE (MIT License)
29			*/
30
31			trait Functional
32			{
33			use Functional\InPlaceSort {
34			Functional\InPlaceSort::heapSort as heapSortWithCallback;
35			}
36
37			protected function getSplFixedArrayAndSize()
38			{
39			$count = $this->count();
40			return [new SplFixedArray($count), $count];
41			}
42
43			/**
44			* @inheritDoc
45			*/
46			public function any(callable $callback)
47			{
48			$count = $this->count();
49
50			for ($i = 0; $i < $count; $i++) {
51			$this[$i] = $callback($this[$i], $i, $this);
52			}
53
54			return $this;
55			}
56
57			/**
58			* @inheritDoc
59			*/
60			public function concat(...$args)
61			{
62			array_unshift($args, $this);
63
64			// Concat this iterator, and variadic args
65			$class = new ReflectionClass('Mbh\Iterator\ConcatIterator');
66			$concatIt = $class->newInstanceArgs($args);
67
68			// Create as new immutable's iterator
69			return static::fromArray($concatIt->toArray());
70			}
71
72			/**
73			* @inheritDoc
74			*/
75			public function find(callable $callback)
76			{
77			foreach ($this as $i => $elem) {
78			if ($callback($elem, $i, $this)) {
79			return $elem;
80			}
81			}
82			}
83
84			/**
85			* @inheritDoc
86			*/
87			public function filter(callable $callback)
88			{
89			list($sfa, $count) = $this->getSplFixedArrayAndSize();
90
91			$newCount = 0;
92			foreach ($this as $elem) {
93			if ($callback($elem)) {
94			$sfa[$newCount++] = $elem;
95			}
96			}
97
98			$sfa->setSize($newCount);
99			return static::fromItems($sfa);
100			}
101
102			/**
103			* @inheritDoc
104			*/
105			public function heapSort(SplHeap $heap)
106			{
107			foreach ($this as $item) {
108			$heap->insert($item);
109			}
110
111			$this->setValues(static::fromItems($heap));
112
113			return $this;
114			}
115
116			/**
117			* @inheritDoc
118			*/
119			public function join(string $token = ',', string $secondToken = null): string
120			{
121			$str = "";
122			if ($secondToken !== null) {
123			foreach ($this as $i => $elem) {
124			$str .= $token . (string) $elem . $secondToken;
125			}
126			} else {
127			$this->rewind();
128			while ($this->valid()) {
129			$str .= (string) $this->current();
130			$this->next();
131			if ($this->valid()) {
132			$str .= $token;
133			}
134			}
135			}
136
137			return $str;
138			}
139
140			/**
141			* @inheritDoc
142			*/
143			public function map(callable $callback)
144			{
145			list($sfa, $count) = $this->getSplFixedArrayAndSize();
146
147			for ($i = 0; $i < $count; $i++) {
148			$sfa[$i] = $callback($this[$i], $i, $this);
149			}
150
151			return static::fromItems($sfa);
152			}
153
154			/**
155			* @inheritDoc
156			*/
157			public function reduce(callable $callback, $accumulator = null)
158			{
159			foreach ($this as $i => $elem) {
160			$accumulator = $callback($accumulator, $elem, $i, $this);
161			}
162
163			return $accumulator;
164			}
165
166			/**
167			* @inheritDoc
168			*/
169			public function search($value)
170			{
171			foreach ($this as $i => $elem) {
172			if ($value === $elem) {
173			return $i;
174			}
175			}
176			}
177
178			/**
179			* @inheritDoc
180			*/
181			public function slice(int $begin = 0, int $length = null)
182			{
183			$end = $begin + $length;
184			$it = new SliceIterator($this->getValues(), $begin, $end);
185			return static::fromArray($it->toArray());
186			}
187
188			/**
189			* @inheritDoc
190			*/
191			public function splice(int $begin = 0, int $length = null, $replacement = [])
192			{
193			$input = $this->toArray();
194			array_splice($input, $begin, $length, $replacement);
195			return static::fromArray($input);
196			}
197
198			/**
199			* @inheritDoc
200			*/
201			public function sort(callable $callback = null)
202			{
203			if ($callback) {
204			return $this->mergeSort($callback);
205			}
206
207			return $this->arraySort();
208			}
209
210			/**
211			* @inheritDoc
212			*/
213			public function walk(callable $callback)
214			{
215			foreach ($this as $i => $elem) {
216			$callback($elem, $i, $this);
217			}
218
219			return $this;
220			}
221
222			abstract public static function fromItems(Traversable $array);
223
224			abstract protected function getValues(): Traversable;
225
226			abstract public function count(): int;
227
228			abstract public function current();
229
230			abstract public function next();
231
232			abstract public function rewind();
233
234			abstract public function valid();
235			}
236

MBHFramework / structures

Functional::reduce() A last analyzed 2018-09-26 02:10 UTC

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Functional::reduce() A
last analyzed 2018-09-26 02:10 UTC