ObjectKeys::merge() - Code Metrics - Innmind/Immutable - Measure and Improve Code Quality continuously with Scrutinizer

ObjectKeys::merge() A
last analyzed 2022-07-02 13:48 UTC

↳ Parent: ObjectKeys

Complexity

Conditions	1
Paths	1

Size

Total Lines	5
Code Lines	3

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	3
CRAP Score	1

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	1
eloc	3
c	1
b	0
f	0
nc	1
nop	1
dl	0
loc	5
rs	10
ccs	3
cts	3
cp	1
crap	1

<?php
declare(strict_types = 1);

namespace Innmind\Immutable\Map;

use Innmind\Immutable\{
    Map,
    Str,
    Sequence,
    Set,
    Pair,
    Maybe,
    SideEffect,
};

/**
 * @template T
 * @template S
 * @psalm-immutable
 */
final class ObjectKeys implements Implementation
{
    private \SplObjectStorage $values;

    public function __construct(\SplObjectStorage $values = null)
    {
        $this->values = $values ?? new \SplObjectStorage;
    }

    /**
     * @param T $key
filter:
    dependency_paths: ["lib/*"]
     * @param S $value
     *
     * @return Implementation<T, S>
     */
    public function __invoke($key, $value): Implementation
    {
        if (!\is_object($key)) {
            return (new DoubleIndex)->merge($this)($key, $value);
        }

        /** @var \SplObjectStorage<object, mixed> */
        $values = clone $this->values;
        /** @psalm-suppress ImpureMethodCall */
        $values[$key] = $value;

        return new self($values);
    }

    /**
     * @template A
     * @template B
     * @psalm-pure
     *
     * @param A $key
filter:
    dependency_paths: ["lib/*"]
     * @param B $value
filter:
    dependency_paths: ["lib/*"]
     *
     * @return Maybe<Implementation<A, B>>
     */
    public static function of($key, $value): Maybe
    {
        if (\is_object($key)) {
            /** @var self<A, B> */
            $self = new self;

            /** @var Maybe<Implementation<A, B>> */
            return Maybe::just(($self)($key, $value));
        }

        /** @var Maybe<Implementation<A, B>> */
        return Maybe::nothing();
    }

    public function size(): int
    {
        /** @psalm-suppress ImpureMethodCall */
        return $this->values->count();
    }

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

    /**
     * @param T $key
     *
     * @return Maybe<S>
     */
    public function get($key): Maybe
    {
        if (!$this->contains($key)) {
            /** @var Maybe<S> */
            return Maybe::nothing();
        }

        /**
         * @psalm-suppress MixedArgumentTypeCoercion
         * @psalm-suppress ImpureMethodCall
         * @var Maybe<S>
         */
        return Maybe::just($this->values->offsetGet($key));
    }

    /**
     * @param T $key
     */
    public function contains($key): bool
    {
        if (!\is_object($key)) {
            return false;
        }

        /**
         * @psalm-suppress MixedArgumentTypeCoercion
         * @psalm-suppress ImpureMethodCall
         */
        return $this->values->offsetExists($key);
    }

    /**
     * @return self<T, S>
     */
    public function clear(): self
    {
        return new self;
    }

    /**
     * @param Implementation<T, S> $map
     */
    public function equals(Implementation $map): bool
    {
        if (!$map->keys()->equals($this->keys())) {
            return false;
        }

        /** @psalm-suppress ImpureMethodCall */
        foreach ($this->values as $k) {
            /** @var T $key */
            $key = $k;
            /** @var S $v */
            $v = $this->values[$k];
            $equals = $map
                ->get($key)
                ->filter(static fn($value) => $value === $v)
                ->match(
                    static fn() => true,
                    static fn() => false,
                );

            if (!$equals) {
                return false;
            }
        }

        return true;
    }

    /**
     * @param callable(T, S): bool $predicate
     *
     * @return self<T, S>
     */
    public function filter(callable $predicate): self
    {
        /** @var \SplObjectStorage<object, mixed> */
        $values = new \SplObjectStorage;

        /** @psalm-suppress ImpureMethodCall */
        foreach ($this->values as $k) {
            /** @var T $key */
            $key = $k;
            /** @var S $v */
            $v = $this->values[$k];

            if ($predicate($key, $v) === true) {
                $values[$k] = $v;
            }
        }

        return new self($values);
    }

    /**
     * @param callable(T, S): void $function
     */
    public function foreach(callable $function): SideEffect
    {
        /** @psalm-suppress ImpureMethodCall */
        foreach ($this->values as $k) {
            /** @var T $key */
            $key = $k;
            /**
             * @psalm-suppress ImpureMethodCall
             * @var S $v
             */
            $v = $this->values[$k];

            $function($key, $v);
        }

        return new SideEffect;
    }

    /**
     * @template D
     *
     * @param callable(T, S): D $discriminator
     *
     * @return Map<D, Map<T, S>>
     */
    public function groupBy(callable $discriminator): Map
    {
        /** @var Map<D, Map<T, S>> */
        $groups = Map::of();

        /** @psalm-suppress ImpureMethodCall */
        foreach ($this->values as $k) {
            /** @var T $key */
            $key = $k;
            /**
             * @psalm-suppress ImpureMethodCall
             * @var S
             */
            $v = $this->values[$k];

            $discriminant = $discriminator($key, $v);

            $group = $groups->get($discriminant)->match(
                static fn($group) => $group,
                fn() => $this->clearMap(),
            );
            $groups = ($groups)($discriminant, ($group)($key, $v));
        }

        /** @var Map<D, Map<T, S>> */
        return $groups;
    }

    /**
     * @return Set<T>
     */
    public function keys(): Set
    {
        return $this->reduce(
            Set::of(),
            static fn(Set $keys, $key): Set => ($keys)($key),
        );
    }

    /**
     * @return Sequence<S>
     */
    public function values(): Sequence
    {
        return $this->reduce(
            Sequence::of(),
            static fn(Sequence $values, $_, $value): Sequence => ($values)($value),
        );
    }

    /**
     * @template B
     *
     * @param callable(T, S): B $function
     *
     * @return self<T, B>
     */
    public function map(callable $function): self
    {
        /** @var \SplObjectStorage<object, mixed> */
        $values = new \SplObjectStorage;

        /** @psalm-suppress ImpureMethodCall */
        foreach ($this->values as $k) {
            /** @var T */
            $key = $k;
            /**
             * @psalm-suppress ImpureMethodCall
             * @var S
             */
            $v = $this->values[$k];

            /** @psalm-suppress ImpureMethodCall */
            $values[$k] = $function($key, $v);
        }

        return new self($values);
    }

    /**
     * @param T $key
     *
     * @return self<T, S>
     */
    public function remove($key): self
    {
        if (!$this->contains($key)) {
            return $this;
        }

        /** @var \SplObjectStorage<object, mixed> */
        $values = clone $this->values;
        /**
         * @psalm-suppress MixedArgumentTypeCoercion
         * @psalm-suppress ImpureMethodCall
         */
        $values->detach($key);
        /** @psalm-suppress ImpureMethodCall */
        $values->rewind();

        return new self($values);
    }

    /**
     * @param Implementation<T, S> $map
     *
     * @return Implementation<T, S>
     */
    public function merge(Implementation $map): Implementation
    {
        return $map->reduce(
            $this,
            static fn(Implementation $carry, $key, $value): Implementation => ($carry)($key, $value),
        );
    }

    /**
     * @param callable(T, S): bool $predicate
     *
     * @return Map<bool, Map<T, S>>
     */
    public function partition(callable $predicate): Map
    {
        $truthy = $this->clearMap();
        $falsy = $this->clearMap();

        /** @psalm-suppress ImpureMethodCall */
        foreach ($this->values as $k) {
            /** @var T $key */
            $key = $k;
            /**
             * @psalm-suppress ImpureMethodCall
             * @var S $v
             */
            $v = $this->values[$k];

            $return = $predicate($key, $v);

            if ($return === true) {
                $truthy = ($truthy)($key, $v);
            } else {
                $falsy = ($falsy)($key, $v);
            }
        }

        return Map::of([true, $truthy], [false, $falsy]);
    }

    /**
     * @template R
     * @param R $carry
filter:
    dependency_paths: ["lib/*"]
     * @param callable(R, T, S): R $reducer
     *
     * @return R
     */
    public function reduce($carry, callable $reducer)
    {
        /** @psalm-suppress ImpureMethodCall */
        foreach ($this->values as $k) {
            /** @var T $key */
            $key = $k;
            /**
             * @psalm-suppress ImpureMethodCall
             * @var S $v
             */
            $v = $this->values[$k];

            $carry = $reducer($carry, $key, $v);
        }

        return $carry;
    }

    public function empty(): bool
    {
        /** @psalm-suppress ImpureMethodCall */
        $this->values->rewind();

        /** @psalm-suppress ImpureMethodCall */
        return !$this->values->valid();
    }

    public function find(callable $predicate): Maybe
    {
        /** @psalm-suppress ImpureMethodCall */
        foreach ($this->values as $k) {
            /** @var T $key */
            $key = $k;
            /**
             * @psalm-suppress ImpureMethodCall
             * @var S $v
             */
            $v = $this->values[$k];

            if ($predicate($key, $v)) {
                return Maybe::just(new Pair($key, $v));
            }
        }

        /** @var Maybe<Pair<T, S>> */
        return Maybe::nothing();
    }

    /**
     * @return Map<T, S>
     */
    private function clearMap(): Map
    {
        return Map::of();
    }
}


1		<?php
2		declare(strict_types = 1);
3
4		namespace Innmind\Immutable\Map;
5
6		use Innmind\Immutable\{
7		Map,
8		Str,
9		Sequence,
10		Set,
11		Pair,
12		Maybe,
13		SideEffect,
14		};
15
16		/**
17		* @template T
18		* @template S
19		* @psalm-immutable
20		*/
21		final class ObjectKeys implements Implementation
22		{
23		private \SplObjectStorage $values;
24
25		public function __construct(\SplObjectStorage $values = null)
26		{
27		$this->values = $values ?? new \SplObjectStorage;
28		}
29
30		/**
31		* @param T $key
		0 ignored issues – show Bug introduced 2022-03-26 14:35 UTC by Report Bug Copy Issue Report The type `Innmind\Immutable\Map\T` was not found. Maybe you did not declare it correctly or list all dependencies? The issue could also be caused by a filter entry in the build configuration. If the path has been excluded in your configuration, e.g. `excluded_paths: ["lib/"]`, you can move it to the dependency path list as follows: filter: dependency_paths: ["lib/"] For further information see https://scrutinizer-ci.com/docs/tools/php/php-scrutinizer/#list-dependency-paths Loading history...
32	30	* @param S $value
33		*
34	30	* @return Implementation<T, S>
35		*/
36	30	public function __invoke($key, $value): Implementation
37	1	{
38		if (!\is_object($key)) {
39		return (new DoubleIndex)->merge($this)($key, $value);
40	29	}
41	29
42	29	/** @var \SplObjectStorage<object, mixed> */
43	29	$values = clone $this->values;
44	29	/** @psalm-suppress ImpureMethodCall */
45		$values[$key] = $value;
46	9
47		return new self($values);
48	9	}
49
50		/**
51	8	* @template A
52		* @template B
53	8	* @psalm-pure
54		*
55		* @param A $key
		0 ignored issues – show Bug introduced 2022-03-26 14:35 UTC by Report Bug Copy Issue Report The type `Innmind\Immutable\Map\A` was not found. Maybe you did not declare it correctly or list all dependencies? The issue could also be caused by a filter entry in the build configuration. If the path has been excluded in your configuration, e.g. `excluded_paths: ["lib/"]`, you can move it to the dependency path list as follows: filter: dependency_paths: ["lib/"] For further information see https://scrutinizer-ci.com/docs/tools/php/php-scrutinizer/#list-dependency-paths Loading history...
56	7	* @param B $value
		0 ignored issues – show Bug introduced 2022-03-26 14:35 UTC by Report Bug Copy Issue Report The type `Innmind\Immutable\Map\B` was not found. Maybe you did not declare it correctly or list all dependencies? The issue could also be caused by a filter entry in the build configuration. If the path has been excluded in your configuration, e.g. `excluded_paths: ["lib/"]`, you can move it to the dependency path list as follows: filter: dependency_paths: ["lib/"] For further information see https://scrutinizer-ci.com/docs/tools/php/php-scrutinizer/#list-dependency-paths Loading history...
57		*
58	7	* @return Maybe<Implementation<A, B>>
59		*/
60		public static function of($key, $value): Maybe
61		{
62		if (\is_object($key)) {
63		/** @var self<A, B> */
64		$self = new self;
65
66		/** @var Maybe<Implementation<A, B>> */
67		return Maybe::just(($self)($key, $value));
68		}
69
70		/** @var Maybe<Implementation<A, B>> */
71		return Maybe::nothing();
72		}
73
74		public function size(): int
75	25	{
76		/** @psalm-suppress ImpureMethodCall */
77	25	return $this->values->count();
78	24	}
79
80	23	public function count(): int
81	23	{
82		return $this->size();
83	23	}
84
85	23	/**
86		* @param T $key
87		*
88		* @return Maybe<S>
89		*/
90		public function get($key): Maybe
91		{
92		if (!$this->contains($key)) {
93		/** @var Maybe<S> */
94		return Maybe::nothing();
95	7	}
96
97	7	/**
98	1	* @psalm-suppress MixedArgumentTypeCoercion
99		* @psalm-suppress ImpureMethodCall
100		* @var Maybe<S>
101		*/
102		return Maybe::just($this->values->offsetGet($key));
103		}
104
105	6	/**
106		* @param T $key
107		*/
108		public function contains($key): bool
109		{
110		if (!\is_object($key)) {
111	10	return false;
112		}
113	10
114	1	/**
115		* @psalm-suppress MixedArgumentTypeCoercion
116		* @psalm-suppress ImpureMethodCall
117		*/
118	10	return $this->values->offsetExists($key);
119		}
120
121		/**
122		* @return self<T, S>
123		*/
124	5	public function clear(): self
125		{
126	5	return new self;
127	5	}
128
129	5	/**
130		* @param Implementation<T, S> $map
131		*/
132		public function equals(Implementation $map): bool
133		{
134		if (!$map->keys()->equals($this->keys())) {
135	3	return false;
136		}
137	3
138	1	/** @psalm-suppress ImpureMethodCall */
139		foreach ($this->values as $k) {
140		/** @var T $key */
141	3	$key = $k;
142		/** @var S $v */
143	3	$v = $this->values[$k];
144		$equals = $map
145	3	->get($key)
146		->filter(static fn($value) => $value === $v)
147	3	->match(
148		static fn() => true,
149		static fn() => false,
150		);
151	3
152	3	if (!$equals) {
153		return false;
154		}
155		}
156	1
157		return true;
158		}
159
160		/**
161		* @param callable(T, S): bool $predicate
162		*
163		* @return self<T, S>
164	1	*/
165		public function filter(callable $predicate): self
166	1	{
167		/** @var \SplObjectStorage<object, mixed> */
168	1	$values = new \SplObjectStorage;
169
170	1	/** @psalm-suppress ImpureMethodCall */
171		foreach ($this->values as $k) {
172	1	/** @var T $key */
173		$key = $k;
174	1	/** @var S $v */
175	1	$v = $this->values[$k];
176
177		if ($predicate($key, $v) === true) {
178		$values[$k] = $v;
179	1	}
180		}
181
182		return new self($values);
183		}
184
185	1	/**
186		* @param callable(T, S): void $function
187	1	*/
188		public function foreach(callable $function): SideEffect
189	1	{
190		/** @psalm-suppress ImpureMethodCall */
191	1	foreach ($this->values as $k) {
192		/** @var T $key */
193	1	$key = $k;
194		/**
195	1	* @psalm-suppress ImpureMethodCall
196		* @var S $v
197		*/
198		$v = $this->values[$k];
199
200		$function($key, $v);
201		}
202
203		return new SideEffect;
204		}
205	2
206		/**
207	2	* @template D
208	1	*
209		* @param callable(T, S): D $discriminator
210		*
211	1	* @return Map<D, Map<T, S>>
212		*/
213	1	public function groupBy(callable $discriminator): Map
214		{
215	1	/** @var Map<D, Map<T, S>> */
216		$groups = Map::of();
217	1
218		/** @psalm-suppress ImpureMethodCall */
219	1	foreach ($this->values as $k) {
220		/** @var T $key */
221	1	$key = $k;
222		/**
223	1	* @psalm-suppress ImpureMethodCall
224	1	* @var S
225	1	*/
226		$v = $this->values[$k];
227
228		$discriminant = $discriminator($key, $v);
229	1
230		$group = $groups->get($discriminant)->match(
231	1	static fn($group) => $group,
232		fn() => $this->clearMap(),
233	1	);
234		$groups = ($groups)($discriminant, ($group)($key, $v));
235	1	}
236
237		/** @var Map<D, Map<T, S>> */
238	1	return $groups;
239		}
240	1
241		/**
242		* @return Set<T>
243		*/
244		public function keys(): Set
245	1	{
246		return $this->reduce(
247		Set::of(),
248		static fn(Set $keys, $key): Set => ($keys)($key),
249		);
250		}
251	7
252		/**
253	7	* @return Sequence<S>
254	7	*/
255		public function values(): Sequence
256	7	{
257	7	return $this->reduce(
258		Sequence::of(),
259		static fn(Sequence $values, $_, $value): Sequence => ($values)($value),
260		);
261		}
262
263		/**
264	7	* @template B
265		*
266	7	* @param callable(T, S): B $function
267	7	*
268		* @return self<T, B>
269	7	*/
270	7	public function map(callable $function): self
271		{
272		/** @var \SplObjectStorage<object, mixed> */
273		$values = new \SplObjectStorage;
274
275		/** @psalm-suppress ImpureMethodCall */
276		foreach ($this->values as $k) {
277		/** @var T */
278		$key = $k;
279	3	/**
280		* @psalm-suppress ImpureMethodCall
281	3	* @var S
282		*/
283	3	$v = $this->values[$k];
284
285	3	/** @psalm-suppress ImpureMethodCall */
286		$values[$k] = $function($key, $v);
287	3	}
288
289	3	return new self($values);
290		}
291	3
292	2	/**
293		* @param T $key
294		*
295	1	* @return self<T, S>
296		*/
297	1	public function remove($key): self
298		{
299	2	if (!$this->contains($key)) {
300	2	return $this;
301		}
302
303	2	/** @var \SplObjectStorage<object, mixed> */
304		$values = clone $this->values;
305	1	/**
306		* @psalm-suppress MixedArgumentTypeCoercion
307		* @psalm-suppress ImpureMethodCall
308	1	*/
309		$values->detach($key);
310		/** @psalm-suppress ImpureMethodCall */
311		$values->rewind();
312
313		return new self($values);
314		}
315
316	1	/**
317		* @param Implementation<T, S> $map
318	1	*
319	1	* @return Implementation<T, S>
320		*/
321		public function merge(Implementation $map): Implementation
322	1	{
323	1	return $map->reduce(
324		$this,
325	1	static fn(Implementation $carry, $key, $value): Implementation => ($carry)($key, $value),
326	1	);
327		}
328	1
329		/**
330		* @param callable(T, S): bool $predicate
331		*
332		* @return Map<bool, Map<T, S>>
333		*/
334		public function partition(callable $predicate): Map
335		{
336	2	$truthy = $this->clearMap();
337		$falsy = $this->clearMap();
338
339	2	/** @psalm-suppress ImpureMethodCall */
340	2	foreach ($this->values as $k) {
341		/** @var T $key */
342	2	$key = $k;
343	2	/**
344		* @psalm-suppress ImpureMethodCall
345		* @var S $v
346		*/
347		$v = $this->values[$k];
348
349		$return = $predicate($key, $v);
350
351		if ($return === true) {
352	1	$truthy = ($truthy)($key, $v);
353		} else {
354	1	$falsy = ($falsy)($key, $v);
355	1	}
356		}
357	1
358		return Map::of([true, $truthy], [false, $falsy]);
359	1	}
360
361	1	/**
362		* @template R
363	1	* @param R $carry
		0 ignored issues – show Bug introduced 2019-12-05 18:47 UTC by Report Bug Copy Issue Report The type `Innmind\Immutable\Map\R` was not found. Maybe you did not declare it correctly or list all dependencies? The issue could also be caused by a filter entry in the build configuration. If the path has been excluded in your configuration, e.g. `excluded_paths: ["lib/"]`, you can move it to the dependency path list as follows: filter: dependency_paths: ["lib/"] For further information see https://scrutinizer-ci.com/docs/tools/php/php-scrutinizer/#list-dependency-paths Loading history...
364		* @param callable(R, T, S): R $reducer
365	1	*
366	1	* @return R
367		*/
368	1	public function reduce($carry, callable $reducer)
369		{
370		/** @psalm-suppress ImpureMethodCall */
371		foreach ($this->values as $k) {
372		/** @var T $key */
373		$key = $k;
374		/**
375		* @psalm-suppress ImpureMethodCall
376	1	* @var S $v
377	1	*/
378	1	$v = $this->values[$k];
379
380		$carry = $reducer($carry, $key, $v);
381		}
382
383		return $carry;
384		}
385
386		public function empty(): bool
387		{
388	8	/** @psalm-suppress ImpureMethodCall */
389		$this->values->rewind();
390	8
391		/** @psalm-suppress ImpureMethodCall */
392	8	return !$this->values->valid();
393		}
394	8
395		public function find(callable $predicate): Maybe
396	8	{
397		/** @psalm-suppress ImpureMethodCall */
398		foreach ($this->values as $k) {
399	8	/** @var T $key */
400		$key = $k;
401		/**
402	3	* @psalm-suppress ImpureMethodCall
403		* @var S $v
404	3	*/
405		$v = $this->values[$k];
406	3
407		if ($predicate($key, $v)) {
408		return Maybe::just(new Pair($key, $v));
409		}
410		}
411
412		/** @var Maybe<Pair<T, S>> */
413		return Maybe::nothing();
414		}
415
416	1	/**
417		* @return Map<T, S>
418		*/
419	1	private function clearMap(): Map
420		{
421	1	return Map::of();
422		}
423		}
424

Innmind / Immutable

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ObjectKeys::merge() A last analyzed 2022-07-02 13:48 UTC

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ObjectKeys::merge() A
last analyzed 2022-07-02 13:48 UTC