Issues in Sequence.php - New Issues - Inspection of "add method to do a 1-1 map to another type" - Innmind/Immutable - Measure and Improve Code Quality continuously with Scrutinizer

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Push — develop ( 2e42f3...4471cd )

by Baptiste

created 2019-12-15 16:45 UTC

src/Sequence.php (1 issue)

Labels

Bug 1

Severity

Major 1

<?php
declare(strict_types = 1);

namespace Innmind\Immutable;

use Innmind\Immutable\Exception\{
    LogicException,
    CannotGroupEmptyStructure,
    ElementNotFound,
    OutOfBoundException,
};

/**
 * @template T
 */
final class Sequence implements \Countable
{
    private string $type;
    private ValidateArgument $validate;
    private Sequence\Implementation $implementation;

    private function __construct(string $type, Sequence\Implementation $implementation)
    {
        $this->type = $type;
        $this->validate = Type::of($type);
        $this->implementation = $implementation;
    }

    /**
     * @param T $values
     *
     * @return self<T>
     */
    public static function of(string $type, ...$values): self
    {
        $self = new self($type, new Sequence\Primitive($type, ...$values));
        $self->implementation->reduce(
            1,
            static function(int $position, $element) use ($self): int {
                ($self->validate)($element, $position);

                return ++$position;
            }
        );

        return $self;
    }

    /**
     * It will load the values inside the generator only upon the first use
     * of the sequence
     *
     * Use this mode when the amount of data may not fit in memory
     *
     * @param \Generator<T> $generator
     *
     * @return self<T>
     */
    public static function defer(string $type, \Generator $generator): self
    {
        return new self($type, new Sequence\Defer($type, $generator));
    }

    /**
     * It will call the given function every time a new operation is done on the
     * sequence. This means the returned structure may not be truly immutable
     * as between the calls the underlying source may change.
     *
     * Use this mode when calling to an external source (meaning IO bound) such
     * as parsing a file or calling an API
     *
     * @param callable(): \Generator<T> $generator
     *
     * @return self<T>
     */
    public static function lazy(string $type, callable $generator): self
    {
        return new self($type, new Sequence\Lazy($type, $generator));
    }

    /**
     * @param mixed $values
     *
     * @return self<mixed>
     */
    public static function mixed(...$values): self
    {
        return new self('mixed', new Sequence\Primitive('mixed', ...$values));
    }

    /**
     * @return self<int>
     */
    public static function ints(int ...$values): self
    {
        /** @var self<int> */
        $self = new self('int', new Sequence\Primitive('int', ...$values));

        return $self;
    }

    /**
     * @return self<float>
     */
    public static function floats(float ...$values): self
    {
        /** @var self<float> */
        $self = new self('float', new Sequence\Primitive('float', ...$values));

        return $self;
    }

    /**
     * @return self<string>
     */
    public static function strings(string ...$values): self
    {
        /** @var self<string> */
        $self = new self('string', new Sequence\Primitive('string', ...$values));

        return $self;
    }

    /**
     * @return self<object>
     */
    public static function objects(object ...$values): self
    {
        /** @var self<object> */
        $self = new self('object', new Sequence\Primitive('object', ...$values));

        return $self;
    }

    public function isOfType(string $type): bool
    {
        return $this->type === $type;
    }

    /**
     * Type of the elements
     */
    public function type(): string
    {
        return $this->type;
    }

    public function size(): int
    {
        return $this->implementation->size();
    }

    /**
     * {@inheritdoc}
     */
    public function count(): int
    {
        return $this->implementation->size();
    }

    /**
     * Return the element at the given index
     *
     * @throws OutOfBoundException
     *
     * @return T
     */
    public function get(int $index)
    {
        /** @var T */
        return $this->implementation->get($index);
    }

    /**
     * Return the diff between this sequence and another
     *
     * @param self<T> $sequence
     *
     * @return self<T>
     */
    public function diff(self $sequence): self
    {
        assertSequence($this->type, $sequence, 1);

        $self = clone $this;
        $self->implementation = $this->implementation->diff(
            $sequence->implementation,
        );

        return $self;
    }

    /**
     * Remove all duplicates from the sequence
     *
     * @return self<T>
     */
    public function distinct(): self
    {
        $self = clone $this;
        $self->implementation = $this->implementation->distinct();

        return $self;
    }

    /**
     * Remove the n first elements
     *
     * @return self<T>
     */
    public function drop(int $size): self
    {
        $self = clone $this;
        $self->implementation = $this->implementation->drop($size);

        return $self;
    }

    /**
     * Remove the n last elements
     *
     * @return self<T>
     */
    public function dropEnd(int $size): self
    {
        $self = clone $this;
        $self->implementation = $this->implementation->dropEnd($size);

        return $self;
    }

    /**
     * Check if the two sequences are equal
     *
     * @param self<T> $sequence
     */
    public function equals(self $sequence): bool
    {
        assertSequence($this->type, $sequence, 1);

        return $this->implementation->equals(
            $sequence->implementation,
        );
    }

    /**
     * Return all elements that satisfy the given predicate
     *
     * @param callable(T): bool $predicate
     *
     * @return self<T>
     */
    public function filter(callable $predicate): self
    {
        $self = clone $this;
        $self->implementation = $this->implementation->filter($predicate);

        return $self;
    }

    /**
     * Apply the given function to all elements of the sequence
     *
     * @param callable(T): void $function
     */
    public function foreach(callable $function): void
    {
        $this->implementation->foreach($function);
    }

    /**
     * Return a new map of pairs grouped by keys determined with the given
     * discriminator function
     *
     * @template D
     * @param callable(T): D $discriminator
     *
     * @throws CannotGroupEmptyStructure
     *
     * @return Map<D, self<T>>
     */
    public function groupBy(callable $discriminator): Map
    {
        return $this->implementation->groupBy($discriminator);
    }

    /**
     * Return the first element
     *
     * @return T
     */
    public function first()
    {
        /** @var T */
        return $this->implementation->first();
    }

    /**
     * Return the last element
     *
     * @return T
     */
    public function last()
    {
        /** @var T */
        return $this->implementation->last();
    }

    /**
     * Check if the sequence contains the given element
     *
     * @param T $element
     */
    public function contains($element): bool
    {
        ($this->validate)($element, 1);

        return $this->implementation->contains($element);
    }

    /**
     * Return the index for the given element
     *
     * @param T $element
     *
     * @throws ElementNotFound
     */
    public function indexOf($element): int
    {
        ($this->validate)($element, 1);

        return $this->implementation->indexOf($element);
    }

    /**
     * Return the list of indices
     *
     * @return self<int>
     */
    public function indices(): self
    {
        /** @var self<int> */
        $self = new self('int', $this->implementation->indices());

        return $self;
    }

    /**
     * Return a new sequence by applying the given function to all elements
     *
     * @param callable(T): T $function
     *
     * @return self<T>
     */
    public function map(callable $function): self
    {
        $self = clone $this;
        $self->implementation = $this->implementation->map($function);

        return $self;
    }

    /**
     * Create a new Sequence with the exact same number of elements but with a
     * new type transformed via the given function
     *
     * @template S
     *
     * @param callable(T): S $map
     *
     * @return self<S>
     */
    public function mapTo(string $type, callable $map): self
    {
        /** @psalm-suppress MixedArgument */
        return $this->toSequenceOf(
            $type,
            static fn($value): \Generator => yield $map($value),

        );
    }

    /**
     * Pad the sequence to a defined size with the given element
     *
     * @param T $element
     *
     * @return self<T>
     */
    public function pad(int $size, $element): self
    {
        ($this->validate)($element, 2);

        $self = clone $this;
        $self->implementation = $this->implementation->pad($size, $element);

        return $self;
    }

    /**
     * Return a sequence of 2 sequences partitioned according to the given predicate
     *
     * @param callable(T): bool $predicate
     *
     * @return Map<bool, self<T>>
     */
    public function partition(callable $predicate): Map
    {
        return $this->implementation->partition($predicate);
    }

    /**
     * Slice the sequence
     *
     * @return self<T>
     */
    public function slice(int $from, int $until): self
    {
        $self = clone $this;
        $self->implementation = $this->implementation->slice($from, $until);

        return $self;
    }

    /**
     * Split the sequence in a sequence of 2 sequences splitted at the given position
     *
     * @throws OutOfBoundException
     *
     * @return self<self<T>>
     */
    public function splitAt(int $position): self
    {
        return $this->implementation->splitAt($position);
    }

    /**
     * Return a sequence with the n first elements
     *
     * @return self<T>
     */
    public function take(int $size): self
    {
        $self = clone $this;
        $self->implementation = $this->implementation->take($size);

        return $self;
    }

    /**
     * Return a sequence with the n last elements
     *
     * @return self<T>
     */
    public function takeEnd(int $size): self
    {
        $self = clone $this;
        $self->implementation = $this->implementation->takeEnd($size);

        return $self;
    }

    /**
     * Append the given sequence to the current one
     *
     * @param self<T> $sequence
     *
     * @return self<T>
     */
    public function append(self $sequence): self
    {
        assertSequence($this->type, $sequence, 1);

        $self = clone $this;
        $self->implementation = $this->implementation->append(
            $sequence->implementation,
        );

        return $self;
    }

    /**
     * Return a sequence with all elements from the current one that exist
     * in the given one
     *
     * @param self<T> $sequence
     *
     * @return self<T>
     */
    public function intersect(self $sequence): self
    {
        assertSequence($this->type, $sequence, 1);

        $self = clone $this;
        $self->implementation = $this->implementation->intersect(
            $sequence->implementation,
        );

        return $self;
    }

    /**
     * Add the given element at the end of the sequence
     *
     * @param T $element
     *
     * @return self<T>
     */
    public function add($element): self
    {
        return ($this)($element);
    }

    /**
     * Add the given element at the end of the sequence
     *
     * Example:
     * <code>
     * Sequence::of('int')(1)(3)
     * </code>
     *
     * @param T $element
     *
     * @return self<T>
     */
    public function __invoke($element): self
    {
        ($this->validate)($element, 1);

        $self = clone $this;
        $self->implementation = ($this->implementation)($element);

        return $self;
        return $this->add($element);
    }

    /**
     * Sort the sequence in a different order
     *
     * @param callable(T, T): int $function
     *
     * @return self<T>
     */
    public function sort(callable $function): self
    {
        $self = clone $this;
        $self->implementation = $this->implementation->sort($function);

        return $self;
    }

    /**
     * Reduce the sequence to a single value
     *
     * @template R
     * @param R $carry
     * @param callable(R, T): R $reducer
     *
     * @return R
     */
    public function reduce($carry, callable $reducer)
    {
        return $this->implementation->reduce($carry, $reducer);
    }

    /**
     * Return a set of the same type but without any value
     *
     * @return self<T>
     */
    public function clear(): self
    {
        $self = clone $this;
        $self->implementation = new Sequence\Primitive($this->type);

        return $self;
    }

    /**
     * Return the same sequence but in reverse order
     *
     * @return self<T>
     */
    public function reverse(): self
    {
        $self = clone $this;
        $self->implementation = $this->implementation->reverse();

        return $self;
    }

    public function empty(): bool
    {
        return $this->implementation->empty();
    }

    /**
     * @template ST
     *
     * @param null|callable(T): \Generator<ST> $mapper
     *
     * @return self<ST>
     */
    public function toSequenceOf(string $type, callable $mapper = null): self
    {
        return $this->implementation->toSequenceOf($type, $mapper);
    }

    /**
     * @template ST
     *
     * @param null|callable(T): \Generator<ST> $mapper
     *
     * @return Set<ST>
     */
    public function toSetOf(string $type, callable $mapper = null): Set
    {
        return $this->implementation->toSetOf($type, $mapper);
    }

    /**
     * @template MT
     * @template MS
     *
     * @param callable(T): \Generator<MT, MS> $mapper
     *
     * @return Map<MT, MS>
     */
    public function toMapOf(string $key, string $value, callable $mapper): Map
    {
        return $this->implementation->toMapOf($key, $value, $mapper);
    }
}


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Push — develop ( 2e42f3...4471cd )

src/Sequence.php (1 issue)

Labels

Severity

Introduced By

1		<?php
2		declare(strict_types = 1);
3
4		namespace Innmind\Immutable;
5
6		use Innmind\Immutable\Exception\{
7		LogicException,
8		CannotGroupEmptyStructure,
9		ElementNotFound,
10		OutOfBoundException,
11		};
12
13		/**
14		* @template T
15		*/
16		final class Sequence implements \Countable
17		{
18		private string $type;
19		private ValidateArgument $validate;
20		private Sequence\Implementation $implementation;
21
22	123	private function __construct(string $type, Sequence\Implementation $implementation)
23		{
24	123	$this->type = $type;
25	123	$this->validate = Type::of($type);
26	123	$this->implementation = $implementation;
27	123	}
28
29		/**
30		* @param T $values
31		*
32		* @return self<T>
33		*/
34	114	public static function of(string $type, ...$values): self
35		{
36	114	$self = new self($type, new Sequence\Primitive($type, ...$values));
37	114	$self->implementation->reduce(
38	114	1,
39		static function(int $position, $element) use ($self): int {
40	30	($self->validate)($element, $position);
41
42	30	return ++$position;
43	114	}
44		);
45
46	114	return $self;
47		}
48
49		/**
50		* It will load the values inside the generator only upon the first use
51		* of the sequence
52		*
53		* Use this mode when the amount of data may not fit in memory
54		*
55		* @param \Generator<T> $generator
56		*
57		* @return self<T>
58		*/
59	4	public static function defer(string $type, \Generator $generator): self
60		{
61	4	return new self($type, new Sequence\Defer($type, $generator));
62		}
63
64		/**
65		* It will call the given function every time a new operation is done on the
66		* sequence. This means the returned structure may not be truly immutable
67		* as between the calls the underlying source may change.
68		*
69	1	* Use this mode when calling to an external source (meaning IO bound) such
70		* as parsing a file or calling an API
71		*
72	1	* @param callable(): \Generator<T> $generator
73		*
74	1	* @return self<T>
75		*/
76		public static function lazy(string $type, callable $generator): self
77		{
78		return new self($type, new Sequence\Lazy($type, $generator));
79		}
80	6
81		/**
82		* @param mixed $values
83	6	*
84		* @return self<mixed>
85	6	*/
86		public static function mixed(...$values): self
87		{
88		return new self('mixed', new Sequence\Primitive('mixed', ...$values));
89		}
90
91	1	/**
92		* @return self<int>
93		*/
94	1	public static function ints(int ...$values): self
95		{
96	1	/** @var self<int> */
97		$self = new self('int', new Sequence\Primitive('int', ...$values));
98
99		return $self;
100		}
101
102	1	/**
103		* @return self<float>
104		*/
105	1	public static function floats(float ...$values): self
106		{
107	1	/** @var self<float> */
108		$self = new self('float', new Sequence\Primitive('float', ...$values));
109
110		return $self;
111		}
112
113	1	/**
114		* @return self<string>
115		*/
116	1	public static function strings(string ...$values): self
117		{
118	1	/** @var self<string> */
119		$self = new self('string', new Sequence\Primitive('string', ...$values));
120
121	26	return $self;
122		}
123	26
124		/**
125		* @return self<object>
126		*/
127		public static function objects(object ...$values): self
128		{
129	39	/** @var self<object> */
130		$self = new self('object', new Sequence\Primitive('object', ...$values));
131	39
132		return $self;
133		}
134	1
135		public function isOfType(string $type): bool
136	1	{
137		return $this->type === $type;
138		}
139
140		/**
141		* Type of the elements
142	5	*/
143		public function type(): string
144	5	{
145		return $this->type;
146		}
147
148		public function size(): int
149		{
150		return $this->implementation->size();
151		}
152
153		/**
154	9	* {@inheritdoc}
155		*/
156		public function count(): int
157	9	{
158		return $this->implementation->size();
159		}
160
161		/**
162		* Return the element at the given index
163		*
164		* @throws OutOfBoundException
165		*
166		* @return T
167	1	*/
168		public function get(int $index)
169	1	{
170		/** @var T */
171	1	return $this->implementation->get($index);
172	1	}
173	1
174		/**
175		* Return the diff between this sequence and another
176	1	*
177		* @param self<T> $sequence
178		*
179		* @return self<T>
180		*/
181		public function diff(self $sequence): self
182		{
183		assertSequence($this->type, $sequence, 1);
184	1
185		$self = clone $this;
186	1	$self->implementation = $this->implementation->diff(
187	1	$sequence->implementation,
188		);
189	1
190		return $self;
191		}
192
193		/**
194		* Remove all duplicates from the sequence
195		*
196		* @return self<T>
197	1	*/
198		public function distinct(): self
199	1	{
200	1	$self = clone $this;
201		$self->implementation = $this->implementation->distinct();
202	1
203		return $self;
204		}
205
206		/**
207		* Remove the n first elements
208		*
209		* @return self<T>
210	1	*/
211		public function drop(int $size): self
212	1	{
213	1	$self = clone $this;
214		$self->implementation = $this->implementation->drop($size);
215	1
216		return $self;
217		}
218
219		/**
220		* Remove the n last elements
221		*
222		* @return self<T>
223	7	*/
224		public function dropEnd(int $size): self
225	7	{
226		$self = clone $this;
227	6	$self->implementation = $this->implementation->dropEnd($size);
228	6
229		return $self;
230		}
231
232		/**
233		* Check if the two sequences are equal
234		*
235		* @param self<T> $sequence
236		*/
237		public function equals(self $sequence): bool
238		{
239	1	assertSequence($this->type, $sequence, 1);
240
241	1	return $this->implementation->equals(
242	1	$sequence->implementation,
243		);
244	1	}
245
246		/**
247		* Return all elements that satisfy the given predicate
248		*
249		* @param callable(T): bool $predicate
250		*
251		* @return self<T>
252	1	*/
253		public function filter(callable $predicate): self
254	1	{
255	1	$self = clone $this;
256		$self->implementation = $this->implementation->filter($predicate);
257
258		return $self;
259		}
260
261		/**
262		* Apply the given function to all elements of the sequence
263		*
264		* @param callable(T): void $function
265		*/
266		public function foreach(callable $function): void
267		{
268	2	$this->implementation->foreach($function);
269		}
270	2
271		/**
272		* Return a new map of pairs grouped by keys determined with the given
273		* discriminator function
274		*
275		* @template D
276		* @param callable(T): D $discriminator
277		*
278	4	* @throws CannotGroupEmptyStructure
279		*
280		* @return Map<D, self<T>>
281	4	*/
282		public function groupBy(callable $discriminator): Map
283		{
284		return $this->implementation->groupBy($discriminator);
285		}
286
287		/**
288		* Return the first element
289	4	*
290		* @return T
291		*/
292	4	public function first()
293		{
294		/** @var T */
295		return $this->implementation->first();
296		}
297
298		/**
299		* Return the last element
300	1	*
301		* @return T
302	1	*/
303		public function last()
304	1	{
305		/** @var T */
306		return $this->implementation->last();
307		}
308
309		/**
310		* Check if the sequence contains the given element
311		*
312		* @param T $element
313		*/
314	1	public function contains($element): bool
315		{
316	1	($this->validate)($element, 1);
317
318	1	return $this->implementation->contains($element);
319		}
320
321		/**
322		* Return the index for the given element
323		*
324		* @param T $element
325		*
326	2	* @throws ElementNotFound
327		*/
328		public function indexOf($element): int
329	2	{
330		($this->validate)($element, 1);
331	2
332		return $this->implementation->indexOf($element);
333		}
334
335		/**
336		* Return the list of indices
337		*
338		* @return self<int>
339		*/
340		public function indices(): self
341	3	{
342		/** @var self<int> */
343	3	$self = new self('int', $this->implementation->indices());
344	3
345		return $self;
346	2	}
347
348		/**
349		* Return a new sequence by applying the given function to all elements
350		*
351		* @param callable(T): T $function
352		*
353		* @return self<T>
354		*/
355		public function map(callable $function): self
356	2	{
357		$self = clone $this;
358	2	$self->implementation = $this->implementation->map($function);
359
360	1	return $self;
361	1	}
362
363	1	/**
364		* Create a new Sequence with the exact same number of elements but with a
365		* new type transformed via the given function
366		*
367		* @template S
368		*
369		* @param callable(T): S $map
370		*
371		* @return self<S>
372		*/
373	1	public function mapTo(string $type, callable $map): self
374		{
375	1	/** @psalm-suppress MixedArgument */
376		return $this->toSequenceOf(
377		$type,
378		static fn($value): \Generator => yield $map($value),
		0 ignored issues – show Bug introduced 2019-12-15 16:46 UTC by Report Bug Copy Issue Report Show Similar Issues like this A parse error occurred: Syntax error, unexpected T_FN, expecting T_PAAMAYIM_NEKUDOTAYIM on line 378 at column 19 Loading history...
379		);
380		}
381
382		/**
383	1	* Pad the sequence to a defined size with the given element
384		*
385	1	* @param T $element
386	1	*
387		* @return self<T>
388	1	*/
389		public function pad(int $size, $element): self
390		{
391		($this->validate)($element, 2);
392
393		$self = clone $this;
394		$self->implementation = $this->implementation->pad($size, $element);
395
396		return $self;
397		}
398	1
399		/**
400	1	* Return a sequence of 2 sequences partitioned according to the given predicate
401		*
402		* @param callable(T): bool $predicate
403		*
404		* @return Map<bool, self<T>>
405		*/
406		public function partition(callable $predicate): Map
407		{
408	1	return $this->implementation->partition($predicate);
409		}
410	1
411	1	/**
412		* Slice the sequence
413	1	*
414		* @return self<T>
415		*/
416		public function slice(int $from, int $until): self
417		{
418		$self = clone $this;
419		$self->implementation = $this->implementation->slice($from, $until);
420
421	1	return $self;
422		}
423	1
424	1	/**
425		* Split the sequence in a sequence of 2 sequences splitted at the given position
426	1	*
427		* @throws OutOfBoundException
428		*
429		* @return self<self<T>>
430		*/
431		public function splitAt(int $position): self
432		{
433		return $this->implementation->splitAt($position);
434		}
435
436	2	/**
437		* Return a sequence with the n first elements
438	2	*
439		* @return self<T>
440	1	*/
441	1	public function take(int $size): self
442	1	{
443		$self = clone $this;
444		$self->implementation = $this->implementation->take($size);
445	1
446		return $self;
447		}
448
449		/**
450		* Return a sequence with the n last elements
451		*
452		* @return self<T>
453		*/
454		public function takeEnd(int $size): self
455		{
456	2	$self = clone $this;
457		$self->implementation = $this->implementation->takeEnd($size);
458	2
459		return $self;
460	1	}
461	1
462	1	/**
463		* Append the given sequence to the current one
464		*
465	1	* @param self<T> $sequence
466		*
467		* @return self<T>
468		*/
469		public function append(self $sequence): self
470		{
471		assertSequence($this->type, $sequence, 1);
472
473		$self = clone $this;
474		$self->implementation = $this->implementation->append(
475	82	$sequence->implementation,
476		);
477	82
478		return $self;
479	81	}
480	81
481		/**
482	81	* Return a sequence with all elements from the current one that exist
483		* in the given one
484		*
485		* @param self<T> $sequence
486		*
487		* @return self<T>
488		*/
489		public function intersect(self $sequence): self
490		{
491		assertSequence($this->type, $sequence, 1);
492
493		$self = clone $this;
494		$self->implementation = $this->implementation->intersect(
495		$sequence->implementation,
496		);
497
498	51	return $self;
499		}
500	51
501		/**
502		* Add the given element at the end of the sequence
503		*
504		* @param T $element
505		*
506		* @return self<T>
507		*/
508		public function add($element): self
509		{
510	1	return ($this)($element);
511		}
512	1
513	1	/**
514		* Add the given element at the end of the sequence
515	1	*
516		* Example:
517		* <code>
518		* Sequence::of('int')(1)(3)
519		* </code>
520		*
521		* @param T $element
522		*
523		* @return self<T>
524		*/
525		public function __invoke($element): self
526		{
527	87	($this->validate)($element, 1);
528
529	87	$self = clone $this;
530		$self->implementation = ($this->implementation)($element);
531
532		return $self;
533		return $this->add($element);
534		}
535
536		/**
537	1	* Sort the sequence in a different order
538		*
539	1	* @param callable(T, T): int $function
540	1	*
541		* @return self<T>
542	1	*/
543		public function sort(callable $function): self
544		{
545		$self = clone $this;
546		$self->implementation = $this->implementation->sort($function);
547
548		return $self;
549		}
550	3
551		/**
552	3	* Reduce the sequence to a single value
553	3	*
554		* @template R
555	3	* @param R $carry
556		* @param callable(R, T): R $reducer
557		*
558	1	* @return R
559		*/
560	1	public function reduce($carry, callable $reducer)
561		{
562		return $this->implementation->reduce($carry, $reducer);
563		}
564
565		/**
566		* Return a set of the same type but without any value
567		*
568		* @return self<T>
569		*/
570	8	public function clear(): self
571		{
572	8	$self = clone $this;
573		$self->implementation = new Sequence\Primitive($this->type);
574
575		return $self;
576		}
577
578		/**
579		* Return the same sequence but in reverse order
580		*
581		* @return self<T>
582	7	*/
583		public function reverse(): self
584	7	{
585		$self = clone $this;
586		$self->implementation = $this->implementation->reverse();
587
588		return $self;
589		}
590
591		public function empty(): bool
592		{
593		return $this->implementation->empty();
594		}
595
596		/**
597	1	* @template ST
598		*
599	1	* @param null\|callable(T): \Generator<ST> $mapper
600		*
601		* @return self<ST>
602		*/
603		public function toSequenceOf(string $type, callable $mapper = null): self
604		{
605		return $this->implementation->toSequenceOf($type, $mapper);
606		}
607
608		/**
609		* @template ST
610		*
611		* @param null\|callable(T): \Generator<ST> $mapper
612		*
613		* @return Set<ST>
614		*/
615		public function toSetOf(string $type, callable $mapper = null): Set
616		{
617		return $this->implementation->toSetOf($type, $mapper);
618		}
619
620		/**
621		* @template MT
622		* @template MS
623		*
624		* @param callable(T): \Generator<MT, MS> $mapper
625		*
626		* @return Map<MT, MS>
627		*/
628		public function toMapOf(string $key, string $value, callable $mapper): Map
629		{
630		return $this->implementation->toMapOf($key, $value, $mapper);
631		}
632		}
633

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src/Sequence.php (1 issue)

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