Map::xor() - Code Metrics - Inspection of "Fix copy return types" - php-ds/polyfill - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 2c7298...7aefdd )

by Rudi

created 2016-07-24 15:52 UTC

Map::xor() A

↳ Parent: Map

Complexity

Conditions	1
Paths	1

Size

Total Lines	6
Code Lines	3

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	6
rs	9.4285
c	0
b	0
f	0
cc	1
eloc	3
nc	1
nop	1

<?php
namespace Ds;

use OutOfBoundsException;
use OutOfRangeException;
use Traversable;
use UnderflowException;

/**
 * Class Map
 *
 * @package Ds
 */
final class Map implements \IteratorAggregate, \ArrayAccess, Collection
{
    use Traits\Collection;
    use Traits\SquaredCapacity;

    const MIN_CAPACITY = 8;

    /**
     * @var Pair[]
     */
    private $pairs;

    /**
     * Creates an instance using the values of an array or Traversable object.
     *
     * @param array|\Traversable|null $values
     */
    public function __construct($values = null)
    {
        $this->pairs = [];
        $this->capacity = self::MIN_CAPACITY;

        if ($values && is_array($values) || $values instanceof Traversable) {
            $this->putAll($values);
        }
    }

    /**
     * @inheritDoc
     */
    public function clear()
    {
        $this->pairs = [];
$a = "a";
$ab = "ab";
$abc = "abc";
        $this->capacity = self::MIN_CAPACITY;
    }

    /**
     * Return the first Pair from the Map
     *
     * @return Pair
     *
     * @throws UnderflowException
     */
    public function first(): Pair
    {
        if ($this->isEmpty()) {
            throw new UnderflowException();
        }

        return $this->pairs[0];
    }

    /**
     * Return the last Pair from the Map
     *
     * @return Pair
     *
     * @throws UnderflowException
     */
    public function last(): Pair
    {
        if ($this->isEmpty()) {
            throw new UnderflowException();
        }

        return end($this->pairs);
    }

    /**
     * Return the pair at a specified position in the Map
     *
     * @param int $position
     *
     * @return Pair
     *
     * @throws OutOfRangeException
     */
    public function skip(int $position): Pair
    {
        if ($position < 0 || $position >= count($this->pairs)) {
            throw new OutOfRangeException();
        }

        return clone $this->pairs[$position];
    }

    /**
     * Merge an array of values with the current Map
     *
     * @param array|\Traversable $values
     *
     * @return Map
     */
    public function merge($values): Map
    {
        $merged = new self($this);
        $merged->putAll($values);

        return $merged;
    }

    /**
     * Intersect
     *
     * @param Map $map
     *
     * @return Map
     */
    public function intersect(Map $map): Map
    {
        return $this->filter(function($key) use ($map) {
            return $map->hasKey($key);
        });
    }

    /**
     * Diff
     *
     * @param Map $map
     *
     * @return Map
     */
    public function diff(Map $map): Map
    {
        return $this->filter(function($key) use ($map) {
            return ! $map->hasKey($key);
        });
    }

    /**
     * XOR
     *
     * @param Map $map
     *
     * @return Map
     */
    public function xor(Map $map): Map
    {
        return $this->merge($map)->filter(function($key) use ($map) {
            return $this->hasKey($key) ^ $map->hasKey($key);
        });
    }

    /**
     * Identical
     *
     * @param mixed $a
     * @param mixed $b
     *
     * @return bool
     */
    private function keysAreEqual($a, $b): bool
    {
        if (is_object($a) && $a instanceof Hashable) {
            return $a->equals($b);
        }

        return $a === $b;
    }

    /**
     * @param $key
     *
     * @return Pair|null
     */
    private function lookupKey($key)
    {
        foreach ($this->pairs as $pair) {
            if ($this->keysAreEqual($pair->key, $key)) {
                return $pair;
            }
        }
    }

    /**
     * @param $value
     *
     * @return Pair|null
     */
    private function lookupValue($value)
    {
        foreach ($this->pairs as $pair) {
            if ($pair->value === $value) {
                return $pair;
            }
        }
    }

    /**
     *
     */
    private function contains(string $lookup, array $values): bool

    {
        if (empty($values)) {
            return false;
        }

        foreach ($values as $value) {
            if ( ! $this->$lookup($value)) {
                return false;
            }
        }

        return true;
    }

    /**
     * Returns whether an association for all of zero or more keys exist.
     *
     * @param mixed ...$keys
     *
     * @return bool true if at least one value was provided and the map
     *              contains all given keys, false otherwise.
     */

    public function hasKey(...$keys): bool
    {
        return $this->contains('lookupKey', $keys);
    }

    /**
     * Returns whether an association for all of zero or more values exist.
     *
     * @param mixed ...$values
     *
     * @return bool true if at least one value was provided and the map
     *              contains all given values, false otherwise.
     */

    public function hasValue(...$values): bool
    {
        return $this->contains('lookupValue', $values);
    }

    /**
     * @inheritDoc
     */
    public function count(): int
    {
        return count($this->pairs);
    }

    /**
     * Returns a new map containing only the values for which a predicate
     * returns true. A boolean test will be used if a predicate is not provided.
     *
     * @param callable|null $predicate Accepts a key and a value, and returns:
     *                                 true : include the value,
     *                                 false: skip the value.
     *
     * @return Map
     */
    public function filter(callable $predicate = null): Map

    {
        $filtered = new self();

        foreach ($this as $key => $value) {
            if ($predicate ? $predicate($key, $value) : $value) {
                $filtered->put($key, $value);
            }
        }

        return $filtered;
    }

    /**
     * Returns the value associated with a key, or an optional default if the
     * key is not associated with a value.
     *
     * @param mixed $key
     * @param mixed $default
     *
     * @return mixed The associated value or fallback default if provided.
     *
     * @throws OutOfBoundsException if no default was provided and the key is
     *                               not associated with a value.
     */
    public function get($key, $default = null)
    {
        if (($pair = $this->lookupKey($key))) {
            return $pair->value;
        }

        if (func_num_args() === 1) {
            throw new OutOfBoundsException();
        }

        return $default;
    }

    /**
     * Returns a set of all the keys in the map.
     *
     * @return Set
     */
    public function keys(): Set
    {
        $set = new Set();

        foreach ($this->pairs as $pair) {
            $set->add($pair->key);
        }

        return $set;
    }

    /**
     * Returns a new map using the results of applying a callback to each value.
     * The keys will be keysAreEqual in both maps.
     *
     * @param callable $callback Accepts two arguments: key and value, should
     *                           return what the updated value will be.
     *
     * @return Map
     */
    public function map(callable $callback): Map
    {
        $mapped = new self();

        foreach ($this->pairs as $pair) {
            $mapped[$pair->key] = $callback($pair->key, $pair->value);
        }

        return $mapped;
    }

    /**
     * Returns a sequence of pairs representing all associations.
     *
     * @return Sequence
     */
    public function pairs(): Sequence
    {
        $sequence = new Vector();

        foreach ($this->pairs as $pair) {
            $sequence[] = $pair->copy();
        }

        return $sequence;
    }

    /**
     * Associates a key with a value, replacing a previous association if there
     * was one.
     *
     * @param mixed $key
     * @param mixed $value
     */
    public function put($key, $value)
    {
        $pair = $this->lookupKey($key);

        if ($pair) {
            $pair->value = $value;

        } else {
            $this->adjustCapacity();
            $this->pairs[] = new Pair($key, $value);
        }
    }

    /**
     * Creates associations for all keys and corresponding values of either an
     * array or iterable object.
     *
     * @param array|\Traversable $values
     */
    public function putAll($values)
    {
        foreach ($values as $key => $value) {
            $this->put($key, $value);
        }
    }

    /**
     * Iteratively reduces the map to a single value using a callback.
     *
     * @param callable $callback Accepts the carry, key, and value, and
     *                           returns an updated carry value.
     *
     * @param mixed|null $initial Optional initial carry value.
     *
     * @return mixed The carry value of the final iteration, or the initial
     *               value if the map was empty.
     */
    public function reduce(callable $callback, $initial = null)
    {
        $carry = $initial;

        foreach ($this->pairs as $pair) {
            $carry = $callback($carry, $pair->key, $pair->value);
        }

        return $carry;
    }

    /**
     *
     */
    private function delete(int $position)
    {
        $pair  = $this->pairs[$position];
        $value = $pair->value;

        array_splice($this->pairs, $position, 1, null);

        $this->adjustCapacity();
        return $value;
    }

    /**
     * Removes a key's association from the map and returns the associated value
     * or a provided default if provided.
     *
     * @param mixed $key
     * @param mixed $default
     *
     * @return mixed The associated value or fallback default if provided.
     *
     * @throws \OutOfBoundsException if no default was provided and the key is
     *                               not associated with a value.
     */
    public function remove($key, $default = null)
    {
        foreach ($this->pairs as $position => $pair) {
            if ($this->keysAreEqual($pair->key, $key)) {
                return $this->delete($position);
            }
        }

        // Check if a default was provided
        if (func_num_args() === 1) {
            throw new \OutOfBoundsException();
        }

        return $default;
    }

    /**
     * Returns a reversed copy of the map.
     */
    public function reverse(): Map
    {
        $reversed = new self();
$a = "a";
$ab = "ab";
$abc = "abc";
        $reversed->pairs = array_reverse($this->pairs);

        return $reversed;
    }

    /**
     * Returns a sub-sequence of a given length starting at a specified offset.
     *
     * @param int $offset      If the offset is non-negative, the map will
     *                         start at that offset in the map. If offset is
     *                         negative, the map will start that far from the
     *                         end.
     *
     * @param int|null $length If a length is given and is positive, the
     *                         resulting set will have up to that many pairs in
     *                         it. If the requested length results in an
     *                         overflow, only pairs up to the end of the map
     *                         will be included.
     *
     *                         If a length is given and is negative, the map
     *                         will stop that many pairs from the end.
     *
     *                        If a length is not provided, the resulting map
     *                        will contains all pairs between the offset and
     *                        the end of the map.
     *
     * @return Map
     */
    public function slice(int $offset, int $length = null): Map
    {
        $map = new Map();

        if (func_num_args() === 1) {
            $slice = array_slice($this->pairs, $offset);
        } else {
            $slice = array_slice($this->pairs, $offset, $length);
        }

        foreach ($slice as $pair) {
            $map->put($pair->key, $pair->value);
        }

        return $map;
    }

    /**
     * Returns a sorted copy of the map, based on an optional callable
     * comparator. The map will be sorted by value.
     *
     * @param callable|null $comparator Accepts two values to be compared.
     *
     * @return Map
     */
    public function sort(callable $comparator = null): Map

    {
        $sorted = new self($this);

        if ($comparator) {
            usort($sorted->pairs, function($a, $b) use ($comparator) {
                return $comparator($a->value, $b->value);
            });

        } else {
            usort($sorted->pairs, function($a, $b) {
                return $a->value <=> $b->value;
            });
        }

        return $sorted;
    }

    /**
     * Returns a sorted copy of the map, based on an optional callable
     * comparator. The map will be sorted by key.
     *
     * @param callable|null $comparator Accepts two keys to be compared.
     *
     * @return Map
     */
    public function ksort(callable $comparator = null): Map

    {
        $sorted = clone $this;

        if ($comparator) {
            usort($sorted->pairs, function($a, $b) use ($comparator) {
                return $comparator($a->key, $b->key);
            });

        } else {
            usort($sorted->pairs, function($a, $b) {
                return $a->key <=> $b->key;
            });
        }

        return $sorted;
    }

    /**
     * @inheritDoc
     */
    public function toArray(): array
    {
        $array = [];

        foreach ($this->pairs as $pair) {
            $array[$pair->key] = $pair->value;
        }

        return $array;
    }

    /**
     * Returns a sequence of all the associated values in the Map.
     *
     * @return Sequence
     */
    public function values(): Sequence
    {
        $sequence = new Vector();

        foreach ($this->pairs as $pair) {
            $sequence->push($pair->value);
        }

        return $sequence;
    }

    /**
     * Get iterator
     */
    public function getIterator()
    {
        foreach ($this->pairs as $pair) {
            yield $pair->key => $pair->value;
        }
    }

    /**
     * Debug Info
     */
    public function __debugInfo()
    {
        return $this->pairs()->toArray();
    }

    /**
     * @inheritdoc
     */
    public function offsetSet($offset, $value)
    {
        $this->put($offset, $value);
    }

    /**
     * @inheritdoc
     *
     * @throws OutOfBoundsException
     */
    public function &offsetGet($offset)
    {
        $pair = $this->lookupKey($offset);

        if ($pair) {
            return $pair->value;
        }

        throw new OutOfBoundsException();
    }

    /**
     * @inheritdoc
     */
    public function offsetUnset($offset)
    {
        $this->remove($offset, null);
    }

    /**
     * @inheritdoc
     */
    public function offsetExists($offset)
    {
        return $this->get($offset, null) !== null;
    }
}


1		<?php
2		namespace Ds;
3
4		use OutOfBoundsException;
5		use OutOfRangeException;
6		use Traversable;
7		use UnderflowException;
8
9		/**
10		* Class Map
11		*
12		* @package Ds
13		*/
14		final class Map implements \IteratorAggregate, \ArrayAccess, Collection
15		{
16		use Traits\Collection;
17		use Traits\SquaredCapacity;
18
19		const MIN_CAPACITY = 8;
20
21		/**
22		* @var Pair[]
23		*/
24		private $pairs;
25
26		/**
27		* Creates an instance using the values of an array or Traversable object.
28		*
29		* @param array\|\Traversable\|null $values
30		*/
31		public function __construct($values = null)
32		{
33		$this->pairs = [];
34		$this->capacity = self::MIN_CAPACITY;
35
36		if ($values && is_array($values) \|\| $values instanceof Traversable) {
37		$this->putAll($values);
38		}
39		}
40
41		/**
42		* @inheritDoc
43		*/
44		public function clear()
45		{
46		$this->pairs = [];
		0 ignored issues – show Coding Style introduced 2016-07-24 03:17 UTC by Report Bug Copy Issue Report Equals sign not aligned with surrounding assignments; expected 4 spaces but found 1 space This check looks for multiple assignments in successive lines of code. It will report an issue if the operators are not in a straight line. To visualize $a = "a"; $ab = "ab"; $abc = "abc"; will produce issues in the first and second line, while this second example $a = "a"; $ab = "ab"; $abc = "abc"; will produce no issues. Loading history...
47		$this->capacity = self::MIN_CAPACITY;
48		}
49
50		/**
51		* Return the first Pair from the Map
52		*
53		* @return Pair
54		*
55		* @throws UnderflowException
56		*/
57		public function first(): Pair
58		{
59		if ($this->isEmpty()) {
60		throw new UnderflowException();
61		}
62
63		return $this->pairs[0];
64		}
65
66		/**
67		* Return the last Pair from the Map
68		*
69		* @return Pair
70		*
71		* @throws UnderflowException
72		*/
73		public function last(): Pair
74		{
75		if ($this->isEmpty()) {
76		throw new UnderflowException();
77		}
78
79		return end($this->pairs);
80		}
81
82		/**
83		* Return the pair at a specified position in the Map
84		*
85		* @param int $position
86		*
87		* @return Pair
88		*
89		* @throws OutOfRangeException
90		*/
91		public function skip(int $position): Pair
92		{
93		if ($position < 0 \|\| $position >= count($this->pairs)) {
94		throw new OutOfRangeException();
95		}
96
97		return clone $this->pairs[$position];
98		}
99
100		/**
101		* Merge an array of values with the current Map
102		*
103		* @param array\|\Traversable $values
104		*
105		* @return Map
106		*/
107		public function merge($values): Map
108		{
109		$merged = new self($this);
110		$merged->putAll($values);
111
112		return $merged;
113		}
114
115		/**
116		* Intersect
117		*
118		* @param Map $map
119		*
120		* @return Map
121		*/
122		public function intersect(Map $map): Map
123		{
124		return $this->filter(function($key) use ($map) {
125		return $map->hasKey($key);
126		});
127		}
128
129		/**
130		* Diff
131		*
132		* @param Map $map
133		*
134		* @return Map
135		*/
136		public function diff(Map $map): Map
137		{
138		return $this->filter(function($key) use ($map) {
139		return ! $map->hasKey($key);
140		});
141		}
142
143		/**
144		* XOR
145		*
146		* @param Map $map
147		*
148		* @return Map
149		*/
150		public function xor(Map $map): Map
151		{
152		return $this->merge($map)->filter(function($key) use ($map) {
153		return $this->hasKey($key) ^ $map->hasKey($key);
154		});
155		}
156
157		/**
158		* Identical
159		*
160		* @param mixed $a
161		* @param mixed $b
162		*
163		* @return bool
164		*/
165		private function keysAreEqual($a, $b): bool
166		{
167		if (is_object($a) && $a instanceof Hashable) {
168		return $a->equals($b);
169		}
170
171		return $a === $b;
172		}
173
174		/**
175		* @param $key
176		*
177		* @return Pair\|null
178		*/
179		private function lookupKey($key)
180		{
181		foreach ($this->pairs as $pair) {
182		if ($this->keysAreEqual($pair->key, $key)) {
183		return $pair;
184		}
185		}
186		}
187
188		/**
189		* @param $value
190		*
191		* @return Pair\|null
192		*/
193		private function lookupValue($value)
194		{
195		foreach ($this->pairs as $pair) {
196		if ($pair->value === $value) {
197		return $pair;
198		}
199		}
200		}
201
202		/**
203		*
204		*/
205	View Code Duplication	private function contains(string $lookup, array $values): bool
		0 ignored issues – show Duplication introduced 2016-03-05 00:23 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
206		{
207		if (empty($values)) {
208		return false;
209		}
210
211		foreach ($values as $value) {
212		if ( ! $this->$lookup($value)) {
213		return false;
214		}
215		}
216
217		return true;
218		}
219
220		/**
221		* Returns whether an association for all of zero or more keys exist.
222		*
223		* @param mixed ...$keys
224		*
225		* @return bool true if at least one value was provided and the map
226		* contains all given keys, false otherwise.
227		*/
		0 ignored issues – show Documentation introduced 2016-07-09 12:15 UTC by Report Bug Copy Issue Report Consider making the type for parameter `$keys` a bit more specific; maybe use `array`. Loading history...
228		public function hasKey(...$keys): bool
229		{
230		return $this->contains('lookupKey', $keys);
231		}
232
233		/**
234		* Returns whether an association for all of zero or more values exist.
235		*
236		* @param mixed ...$values
237		*
238		* @return bool true if at least one value was provided and the map
239		* contains all given values, false otherwise.
240		*/
		0 ignored issues – show Documentation introduced 2016-07-09 12:15 UTC by Report Bug Copy Issue Report Consider making the type for parameter `$values` a bit more specific; maybe use `array`. Loading history...
241		public function hasValue(...$values): bool
242		{
243		return $this->contains('lookupValue', $values);
244		}
245
246		/**
247		* @inheritDoc
248		*/
249		public function count(): int
250		{
251		return count($this->pairs);
252		}
253
254		/**
255		* Returns a new map containing only the values for which a predicate
256		* returns true. A boolean test will be used if a predicate is not provided.
257		*
258		* @param callable\|null $predicate Accepts a key and a value, and returns:
259		* true : include the value,
260		* false: skip the value.
261		*
262		* @return Map
263		*/
264	View Code Duplication	public function filter(callable $predicate = null): Map
		0 ignored issues – show Duplication introduced 2016-03-04 22:03 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...
265		{
266		$filtered = new self();
267
268		foreach ($this as $key => $value) {
269		if ($predicate ? $predicate($key, $value) : $value) {
270		$filtered->put($key, $value);
271		}
272		}
273
274		return $filtered;
275		}
276
277		/**
278		* Returns the value associated with a key, or an optional default if the
279		* key is not associated with a value.
280		*
281		* @param mixed $key
282		* @param mixed $default
283		*
284		* @return mixed The associated value or fallback default if provided.
285		*
286		* @throws OutOfBoundsException if no default was provided and the key is
287		* not associated with a value.
288		*/
289		public function get($key, $default = null)
290		{
291		if (($pair = $this->lookupKey($key))) {
292		return $pair->value;
293		}
294
295		if (func_num_args() === 1) {
296		throw new OutOfBoundsException();
297		}
298
299		return $default;
300		}
301
302		/**
303		* Returns a set of all the keys in the map.
304		*
305		* @return Set
306		*/
307		public function keys(): Set
308		{
309		$set = new Set();
310
311		foreach ($this->pairs as $pair) {
312		$set->add($pair->key);
313		}
314
315		return $set;
316		}
317
318		/**
319		* Returns a new map using the results of applying a callback to each value.
320		* The keys will be keysAreEqual in both maps.
321		*
322		* @param callable $callback Accepts two arguments: key and value, should
323		* return what the updated value will be.
324		*
325		* @return Map
326		*/
327		public function map(callable $callback): Map
328		{
329		$mapped = new self();
330
331		foreach ($this->pairs as $pair) {
332		$mapped[$pair->key] = $callback($pair->key, $pair->value);
333		}
334
335		return $mapped;
336		}
337
338		/**
339		* Returns a sequence of pairs representing all associations.
340		*
341		* @return Sequence
342		*/
343		public function pairs(): Sequence
344		{
345		$sequence = new Vector();
346
347		foreach ($this->pairs as $pair) {
348		$sequence[] = $pair->copy();
349		}
350
351		return $sequence;
352		}
353
354		/**
355		* Associates a key with a value, replacing a previous association if there
356		* was one.
357		*
358		* @param mixed $key
359		* @param mixed $value
360		*/
361		public function put($key, $value)
362		{
363		$pair = $this->lookupKey($key);
364
365		if ($pair) {
366		$pair->value = $value;
367
368		} else {
369		$this->adjustCapacity();
370		$this->pairs[] = new Pair($key, $value);
371		}
372		}
373
374		/**
375		* Creates associations for all keys and corresponding values of either an
376		* array or iterable object.
377		*
378		* @param array\|\Traversable $values
379		*/
380		public function putAll($values)
381		{
382		foreach ($values as $key => $value) {
383		$this->put($key, $value);
384		}
385		}
386
387		/**
388		* Iteratively reduces the map to a single value using a callback.
389		*
390		* @param callable $callback Accepts the carry, key, and value, and
391		* returns an updated carry value.
392		*
393		* @param mixed\|null $initial Optional initial carry value.
394		*
395		* @return mixed The carry value of the final iteration, or the initial
396		* value if the map was empty.
397		*/
398		public function reduce(callable $callback, $initial = null)
399		{
400		$carry = $initial;
401
402		foreach ($this->pairs as $pair) {
403		$carry = $callback($carry, $pair->key, $pair->value);
404		}
405
406		return $carry;
407		}
408
409		/**
410		*
411		*/
412		private function delete(int $position)
413		{
414		$pair = $this->pairs[$position];
415		$value = $pair->value;
416
417		array_splice($this->pairs, $position, 1, null);
418
419		$this->adjustCapacity();
420		return $value;
421		}
422
423		/**
424		* Removes a key's association from the map and returns the associated value
425		* or a provided default if provided.
426		*
427		* @param mixed $key
428		* @param mixed $default
429		*
430		* @return mixed The associated value or fallback default if provided.
431		*
432		* @throws \OutOfBoundsException if no default was provided and the key is
433		* not associated with a value.
434		*/
435		public function remove($key, $default = null)
436		{
437		foreach ($this->pairs as $position => $pair) {
438		if ($this->keysAreEqual($pair->key, $key)) {
439		return $this->delete($position);
440		}
441		}
442
443		// Check if a default was provided
444		if (func_num_args() === 1) {
445		throw new \OutOfBoundsException();
446		}
447
448		return $default;
449		}
450
451		/**
452		* Returns a reversed copy of the map.
453		*/
454		public function reverse(): Map
455		{
456		$reversed = new self();
		0 ignored issues – show Coding Style introduced 2016-03-05 00:23 UTC by Report Bug Copy Issue Report Equals sign not aligned with surrounding assignments; expected 8 spaces but found 1 space This check looks for multiple assignments in successive lines of code. It will report an issue if the operators are not in a straight line. To visualize $a = "a"; $ab = "ab"; $abc = "abc"; will produce issues in the first and second line, while this second example $a = "a"; $ab = "ab"; $abc = "abc"; will produce no issues. Loading history...
457		$reversed->pairs = array_reverse($this->pairs);
458
459		return $reversed;
460		}
461
462		/**
463		* Returns a sub-sequence of a given length starting at a specified offset.
464		*
465		* @param int $offset If the offset is non-negative, the map will
466		* start at that offset in the map. If offset is
467		* negative, the map will start that far from the
468		* end.
469		*
470		* @param int\|null $length If a length is given and is positive, the
471		* resulting set will have up to that many pairs in
472		* it. If the requested length results in an
473		* overflow, only pairs up to the end of the map
474		* will be included.
475		*
476		* If a length is given and is negative, the map
477		* will stop that many pairs from the end.
478		*
479		* If a length is not provided, the resulting map
480		* will contains all pairs between the offset and
481		* the end of the map.
482		*
483		* @return Map
484		*/
485		public function slice(int $offset, int $length = null): Map
486		{
487		$map = new Map();
488
489		if (func_num_args() === 1) {
490		$slice = array_slice($this->pairs, $offset);
491		} else {
492		$slice = array_slice($this->pairs, $offset, $length);
493		}
494
495		foreach ($slice as $pair) {
496		$map->put($pair->key, $pair->value);
497		}
498
499		return $map;
500		}
501
502		/**
503		* Returns a sorted copy of the map, based on an optional callable
504		* comparator. The map will be sorted by value.
505		*
506		* @param callable\|null $comparator Accepts two values to be compared.
507		*
508		* @return Map
509		*/
510	View Code Duplication	public function sort(callable $comparator = null): Map
		0 ignored issues – show Duplication introduced 2016-07-05 04:52 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...
511		{
512		$sorted = new self($this);
513
514		if ($comparator) {
515		usort($sorted->pairs, function($a, $b) use ($comparator) {
516		return $comparator($a->value, $b->value);
517		});
518
519		} else {
520		usort($sorted->pairs, function($a, $b) {
521		return $a->value <=> $b->value;
522		});
523		}
524
525		return $sorted;
526		}
527
528		/**
529		* Returns a sorted copy of the map, based on an optional callable
530		* comparator. The map will be sorted by key.
531		*
532		* @param callable\|null $comparator Accepts two keys to be compared.
533		*
534		* @return Map
535		*/
536	View Code Duplication	public function ksort(callable $comparator = null): Map
		0 ignored issues – show Duplication introduced 2016-07-05 04:52 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...
537		{
538		$sorted = clone $this;
539
540		if ($comparator) {
541		usort($sorted->pairs, function($a, $b) use ($comparator) {
542		return $comparator($a->key, $b->key);
543		});
544
545		} else {
546		usort($sorted->pairs, function($a, $b) {
547		return $a->key <=> $b->key;
548		});
549		}
550
551		return $sorted;
552		}
553
554		/**
555		* @inheritDoc
556		*/
557		public function toArray(): array
558		{
559		$array = [];
560
561		foreach ($this->pairs as $pair) {
562		$array[$pair->key] = $pair->value;
563		}
564
565		return $array;
566		}
567
568		/**
569		* Returns a sequence of all the associated values in the Map.
570		*
571		* @return Sequence
572		*/
573		public function values(): Sequence
574		{
575		$sequence = new Vector();
576
577		foreach ($this->pairs as $pair) {
578		$sequence->push($pair->value);
579		}
580
581		return $sequence;
582		}
583
584		/**
585		* Get iterator
586		*/
587		public function getIterator()
588		{
589		foreach ($this->pairs as $pair) {
590		yield $pair->key => $pair->value;
591		}
592		}
593
594		/**
595		* Debug Info
596		*/
597		public function __debugInfo()
598		{
599		return $this->pairs()->toArray();
600		}
601
602		/**
603		* @inheritdoc
604		*/
605		public function offsetSet($offset, $value)
606		{
607		$this->put($offset, $value);
608		}
609
610		/**
611		* @inheritdoc
612		*
613		* @throws OutOfBoundsException
614		*/
615		public function &offsetGet($offset)
616		{
617		$pair = $this->lookupKey($offset);
618
619		if ($pair) {
620		return $pair->value;
621		}
622
623		throw new OutOfBoundsException();
624		}
625
626		/**
627		* @inheritdoc
628		*/
629		public function offsetUnset($offset)
630		{
631		$this->remove($offset, null);
632		}
633
634		/**
635		* @inheritdoc
636		*/
637		public function offsetExists($offset)
638		{
639		return $this->get($offset, null) !== null;
640		}
641		}
642

php-ds / polyfill

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Map::xor() A

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