Container::alias() - Code Metrics - Inspection of "FIX: PHPStan && PSR-12" - gravataLonga/container - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — master ( 084b59...968730 )

by Jonathan

created 2020-10-29 23:14 UTC

Container::alias() A

↳ Parent: Container

Complexity

Conditions	3
Paths	3

Size

Total Lines	11
Code Lines	5

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	6
CRAP Score	3

Importance

Changes

Metric	Value
eloc	5
c	0
b	0
f	0
dl	0
loc	11
ccs	6
cts	6
cp	1
rs	10
cc	3
nc	3
nop	2
crap	3

<?php

declare(strict_types=1);

namespace Gravatalonga\Container;

use ArrayAccess;
use Closure;
use Psr\Container\ContainerInterface;
use ReflectionClass;
use ReflectionException;
use ReflectionFunction;
use ReflectionParameter;
use Reflector;

use function array_key_exists;
use function is_callable;

/**
 * Class Container.
 */
class Container extends AutoWiringAware implements ArrayAccess, ContainerInterface
{
    /**
     * @var ContainerInterface
     */
    protected static $instance;

    /**
     * @var array<string, string>
     */
    private $aliases = [];

    /**
     * @var array<string, mixed>
     */
    private $bindings;

    /**
     * @var array<string, boolean>
     */
    private $entriesBeingResolved = [];

    /**
     * @var array <string, mixed>
     */
    private $extended = [];

    /**
     * @var array<string, mixed>
     */
    private $resolved = [];

    /**
     * @var array<string, mixed>
     */
    private $share;

    /**
     * Container constructor.
     *
     * @param array<string, mixed> $config
     *
     * @throws NotFoundContainerException
     */
    public function __construct(array $config = [])
    {
        $this->bindings = $config;
        $this->share = [];

        $self = $this;
        $this->share(ContainerInterface::class, static function () use ($self) {
            return $self;
        });
        $this->alias(ContainerInterface::class, Container::class);
    }

    /**
     * @param string $entry
     * @param string $alias
     *
     * @throws NotFoundContainerException
     *
     * @return void
     */
    public function alias($entry, $alias)
    {
        if (true === $this->isAlias($entry)) {
            throw NotFoundContainerException::entryNotFound($entry);
        }

        if (false === $this->has($entry)) {
            throw NotFoundContainerException::entryNotFound($entry);
        }

        $this->aliases[$alias] = $entry;
    }

    /**
     * @param string $id
     *
     * @throws NotFoundContainerException
     *
     * @return void
     */
    public function extend($id, callable $factory)
    {
        if (!$this->has($id)) {
            throw NotFoundContainerException::entryNotFound($id);
        }

        $factory = $factory instanceof Closure ? $factory : Closure::fromCallable($factory);

        if (true === array_key_exists($id, $this->resolved)) {
            unset($this->resolved[$id]);
        }

        $this->extended[$id][] = $factory;
    }

    /**
     * Factory binding.
     *
     * @param callable|mixed $factory
     *
     * @return void
     */
    public function factory(string $id, $factory)
    {
        $this->bindings[$id] = is_callable($factory) ?
            ($factory instanceof Closure ?
                $factory :
                Closure::fromCallable($factory)) :
            $factory;
    }

    /**
     * {@inheritdoc}
     *
     * @throws ReflectionException
     */
    public function get($id)
    {
        return $this->resolve($id, []);
    }

    /**
     * @return ContainerInterface
     */
    public static function getInstance()
    {
        return self::$instance;
    }

    /**
     * {@inheritdoc}
     */
    public function has($id)
    {
        return array_key_exists($id, $this->bindings) ||
            array_key_exists($id, $this->share) ||
            array_key_exists($id, $this->aliases);
    }

    /**
     * @param string $id
     *
     * @return bool
     */
    public function isAlias($id)
    {
        return true === array_key_exists($id, $this->aliases);
    }

    /**
     * @param string $id
     * @param array<string, mixed> $arguments
     *
     * @throws NotFoundContainerException
     * @throws ContainerException|ReflectionException
     *
     * @return mixed|object
     */
    public function make($id, array $arguments = [])
    {
        if (array_key_exists($id, $this->share)) {
            throw ContainerException::shareOnMake($id);
        }

        return $this->resolve($id, $arguments);
    }

    /**
     * @param string $offset
     *
     * @return bool
     */
    public function offsetExists($offset)
    {
        return $this->has($offset);
    }

    /**
     * @param string $offset
     *
     * @throws ReflectionException
     *
     * @return mixed
     */
    public function offsetGet($offset)
    {
        return $this->get($offset);
    }

    /**
     * @param string $offset
     * @param mixed $value
     */
    public function offsetSet($offset, $value): void
    {
        $this->factory($offset, $value);
    }

    /**
     * @param string $offset
     *
     * @return void
     */
    public function offsetUnset($offset)
    {
        unset(
            $this->bindings[$offset],
            $this->share[$offset],
            $this->resolved[$offset],
            $this->aliases[$offset],
            $this->extended[$offset]
        );
    }

    /**
     * Alias for Factory method.
     *
     * @param mixed $factory
     *
     * @return void
     */
    public function set(string $id, $factory)
    {
        $this->factory($id, $factory);
    }

    public static function setInstance(ContainerInterface $container): void
    {
        self::$instance = $container;
    }

    /**
     * Share rather resolve as factory.
     *
     * @param string $id
     *
     * @return void
     */
    public function share($id, Closure $factory)
    {
        if (true === array_key_exists($id, $this->resolved)) {
            unset($this->resolved[$id]);
        }
        $this->share[$id] = $factory;
    }

    /**
     * @param ReflectionParameter[] $params
     * @param array<string, mixed> $arguments
     *
     * @return array<int, string>
     */
    private function buildDependencies(array $params, array $arguments = [])
    {
        return array_map(
            function (ReflectionParameter $param) use ($arguments) {
                if (true === array_key_exists($param->getName(), $this->entriesBeingResolved)) {
                    throw ContainerException::circularDependency();
                }

                $this->entriesBeingResolved[$param->getName()] = true;

                if (true === array_key_exists($param->getName(), $arguments)) {
                    return $arguments[$param->getName()];
                }

                $type = $param->getType();

                if (null !== $type && true === array_key_exists($type->getName(), $arguments)) {
                    return $arguments[$type->getName()];
                }

                return $this->autoWiringArguments($param);
            },
            $params
        );
    }

    /**
     * Get all extenders for particular entry id.
     *
     * @return array|mixed
     */
    private function getExtenders(string $id)
    {
        return $this->extended[$id] ?? [];
    }

    /**
     * @param array<string, mixed> $arguments
     *
     * @throws NotFoundContainerException
     * @throws ReflectionException
     *
     * @return mixed|object
     */
    private function resolve(string $id, array $arguments = [])
    {
        if (true === array_key_exists($id, $this->resolved)) {
            return $this->resolved[$id];
        }

        if (true === array_key_exists($id, $this->aliases)) {
            return $this->resolve($this->aliases[$id], $arguments);
        }

        if ((false === $this->has($id)) && (true === class_exists($id))) {
            $get = $this->resolveClass($id, $arguments);

            foreach ($this->getExtenders($id) as $extend) {
                $get = $extend($this, $get);
            }

            return $get;
        }

        if (true === $this->has($id)) {
            $get = $this->resolveEntry($id, $arguments);

            foreach ($this->getExtenders($id) as $extend) {
                $get = $extend($this, $get);
            }

            return $get;
        }

        throw NotFoundContainerException::entryNotFound($id);
    }

    /**
     * @param array<string, mixed> $arguments
     *
     * @return array<int, mixed>
     */
    private function resolveArguments(Reflector $reflection, array $arguments = [])
    {
        $params = [];

        if ($reflection instanceof ReflectionClass) {
            if (null !== $constructor = $reflection->getConstructor()) {
                $params = $constructor->getParameters();
            }
        }

        if ($reflection instanceof ReflectionFunction) {
            $params = $reflection->getParameters();
        }

        $value = $this->buildDependencies($params, $arguments);
        $this->entriesBeingResolved = [];

        return $value;
    }

    /**
     * @param mixed $id
     * @param array<string, mixed> $arguments
     *
     * @throws ReflectionException
     *
     * @return object
     */
    private function resolveClass($id, array $arguments = [])
    {
        $reflection = new ReflectionClass($id);

        return $reflection->newInstanceArgs($this->resolveArguments($reflection, $arguments));
    }

    /**
     * @param array<string, mixed> $arguments
     *
     * @throws ReflectionException
     *
     * @return mixed
     */
    private function resolveEntry(string $id, array $arguments = [])
    {
        $get = $this->bindings[$id] ?? $this->share[$id];

        if ($get instanceof Closure) {
            $reflection = new ReflectionFunction($get);
            $value = $reflection->invokeArgs($this->resolveArguments($reflection, $arguments));

            if (true === array_key_exists($id, $this->share)) {
                $this->resolved[$id] = $value;
            }

            return $value;
        }

        return $get;
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		namespace Gravatalonga\Container;
6
7		use ArrayAccess;
8		use Closure;
9		use Psr\Container\ContainerInterface;
10		use ReflectionClass;
11		use ReflectionException;
12		use ReflectionFunction;
13		use ReflectionParameter;
14		use Reflector;
15
16		use function array_key_exists;
17		use function is_callable;
18
19		/**
20		* Class Container.
21		*/
22		class Container extends AutoWiringAware implements ArrayAccess, ContainerInterface
23		{
24		/**
25		* @var ContainerInterface
26		*/
27		protected static $instance;
28
29		/**
30		* @var array<string, string>
31		*/
32		private $aliases = [];
33
34		/**
35		* @var array<string, mixed>
36		*/
37		private $bindings;
38
39		/**
40		* @var array<string, boolean>
41		*/
42		private $entriesBeingResolved = [];
43
44		/**
45		* @var array <string, mixed>
46		*/
47		private $extended = [];
48
49		/**
50		* @var array<string, mixed>
51		*/
52		private $resolved = [];
53
54		/**
55		* @var array<string, mixed>
56		*/
57		private $share;
58
59		/**
60		* Container constructor.
61		*
62		* @param array<string, mixed> $config
63		*
64		* @throws NotFoundContainerException
65		*/
66	171	public function __construct(array $config = [])
67		{
68	171	$this->bindings = $config;
69	171	$this->share = [];
70
71	171	$self = $this;
72		$this->share(ContainerInterface::class, static function () use ($self) {
73	33	return $self;
74	171	});
75	171	$this->alias(ContainerInterface::class, Container::class);
76	171	}
77
78		/**
79		* @param string $entry
80		* @param string $alias
81		*
82		* @throws NotFoundContainerException
83		*
84		* @return void
85		*/
86	171	public function alias($entry, $alias)
87		{
88	171	if (true === $this->isAlias($entry)) {
89	3	throw NotFoundContainerException::entryNotFound($entry);
90		}
91
92	171	if (false === $this->has($entry)) {
93	3	throw NotFoundContainerException::entryNotFound($entry);
94		}
95
96	171	$this->aliases[$alias] = $entry;
97	171	}
98
99		/**
100		* @param string $id
101		*
102		* @throws NotFoundContainerException
103		*
104		* @return void
105		*/
106	21	public function extend($id, callable $factory)
107		{
108	21	if (!$this->has($id)) {
109	3	throw NotFoundContainerException::entryNotFound($id);
110		}
111
112	18	$factory = $factory instanceof Closure ? $factory : Closure::fromCallable($factory);
113
114	18	if (true === array_key_exists($id, $this->resolved)) {
115	3	unset($this->resolved[$id]);
116		}
117
118	18	$this->extended[$id][] = $factory;
119	18	}
120
121		/**
122		* Factory binding.
123		*
124		* @param callable\|mixed $factory
125		*
126		* @return void
127		*/
128	90	public function factory(string $id, $factory)
129		{
130	90	$this->bindings[$id] = is_callable($factory) ?
131	66	($factory instanceof Closure ?
132	66	$factory :
133	66	Closure::fromCallable($factory)) :
134	30	$factory;
135	90	}
136
137		/**
138		* {@inheritdoc}
139		*
140		* @throws ReflectionException
141		*/
142	126	public function get($id)
143		{
144	126	return $this->resolve($id, []);
145		}
146
147		/**
148		* @return ContainerInterface
149		*/
150	3	public static function getInstance()
151		{
152	3	return self::$instance;
153		}
154
155		/**
156		* {@inheritdoc}
157		*/
158	171	public function has($id)
159		{
160	171	return array_key_exists($id, $this->bindings) \|\|
161	171	array_key_exists($id, $this->share) \|\|
162	171	array_key_exists($id, $this->aliases);
163		}
164
165		/**
166		* @param string $id
167		*
168		* @return bool
169		*/
170	171	public function isAlias($id)
171		{
172	171	return true === array_key_exists($id, $this->aliases);
173		}
174
175		/**
176		* @param string $id
177		* @param array<string, mixed> $arguments
178		*
179		* @throws NotFoundContainerException
180		* @throws ContainerException\|ReflectionException
181		*
182		* @return mixed\|object
183		*/
184	24	public function make($id, array $arguments = [])
185		{
186	24	if (array_key_exists($id, $this->share)) {
187	3	throw ContainerException::shareOnMake($id);
188		}
189
190	21	return $this->resolve($id, $arguments);
191		}
192
193		/**
194		* @param string $offset
195		*
196		* @return bool
197		*/
198	6	public function offsetExists($offset)
199		{
200	6	return $this->has($offset);
201		}
202
203		/**
204		* @param string $offset
205		*
206		* @throws ReflectionException
207		*
208		* @return mixed
209		*/
210	6	public function offsetGet($offset)
211		{
212	6	return $this->get($offset);
213		}
214
215		/**
216		* @param string $offset
217		* @param mixed $value
218		*/
219	9	public function offsetSet($offset, $value): void
220		{
221	9	$this->factory($offset, $value);
222	9	}
223
224		/**
225		* @param string $offset
226		*
227		* @return void
228		*/
229	6	public function offsetUnset($offset)
230		{
231		unset(
232	6	$this->bindings[$offset],
233	6	$this->share[$offset],
234	6	$this->resolved[$offset],
235	6	$this->aliases[$offset],
236	6	$this->extended[$offset]
237		);
238	6	}
239
240		/**
241		* Alias for Factory method.
242		*
243		* @param mixed $factory
244		*
245		* @return void
246		*/
247	45	public function set(string $id, $factory)
248		{
249	45	$this->factory($id, $factory);
250	45	}
251
252	3	public static function setInstance(ContainerInterface $container): void
253		{
254	3	self::$instance = $container;
255	3	}
256
257		/**
258		* Share rather resolve as factory.
259		*
260		* @param string $id
261		*
262		* @return void
263		*/
264	171	public function share($id, Closure $factory)
265		{
266	171	if (true === array_key_exists($id, $this->resolved)) {
267	3	unset($this->resolved[$id]);
268		}
269	171	$this->share[$id] = $factory;
270	171	}
271
272		/**
273		* @param ReflectionParameter[] $params
274		* @param array<string, mixed> $arguments
275		*
276		* @return array<int, string>
277		*/
278	123	private function buildDependencies(array $params, array $arguments = [])
279		{
280	123	return array_map(
281		function (ReflectionParameter $param) use ($arguments) {
282	69	if (true === array_key_exists($param->getName(), $this->entriesBeingResolved)) {
283	3	throw ContainerException::circularDependency();
284		}
285
286	69	$this->entriesBeingResolved[$param->getName()] = true;
287
288	69	if (true === array_key_exists($param->getName(), $arguments)) {
289	9	return $arguments[$param->getName()];
290		}
291
292	66	$type = $param->getType();
293
294	66	if (null !== $type && true === array_key_exists($type->getName(), $arguments)) {
295	3	return $arguments[$type->getName()];
296		}
297
298	63	return $this->autoWiringArguments($param);
299	123	},
300	41	$params
301		);
302		}
303
304		/**
305		* Get all extenders for particular entry id.
306		*
307		* @return array\|mixed
308		*/
309	126	private function getExtenders(string $id)
310		{
311	126	return $this->extended[$id] ?? [];
312		}
313
314		/**
315		* @param array<string, mixed> $arguments
316		*
317		* @throws NotFoundContainerException
318		* @throws ReflectionException
319		*
320		* @return mixed\|object
321		*/
322	135	private function resolve(string $id, array $arguments = [])
323		{
324	135	if (true === array_key_exists($id, $this->resolved)) {
325	15	return $this->resolved[$id];
326		}
327
328	135	if (true === array_key_exists($id, $this->aliases)) {
329	12	return $this->resolve($this->aliases[$id], $arguments);
330		}
331
332	135	if ((false === $this->has($id)) && (true === class_exists($id))) {
333	48	$get = $this->resolveClass($id, $arguments);
334
335	39	foreach ($this->getExtenders($id) as $extend) {
336		$get = $extend($this, $get);
337		}
338
339	39	return $get;
340		}
341
342	108	if (true === $this->has($id)) {
343	105	$get = $this->resolveEntry($id, $arguments);
344
345	105	foreach ($this->getExtenders($id) as $extend) {
346	15	$get = $extend($this, $get);
347		}
348
349	105	return $get;
350		}
351
352	3	throw NotFoundContainerException::entryNotFound($id);
353		}
354
355		/**
356		* @param array<string, mixed> $arguments
357		*
358		* @return array<int, mixed>
359		*/
360	123	private function resolveArguments(Reflector $reflection, array $arguments = [])
361		{
362	123	$params = [];
363
364	123	if ($reflection instanceof ReflectionClass) {
365	48	if (null !== $constructor = $reflection->getConstructor()) {
366	45	$params = $constructor->getParameters();
367		}
368		}
369
370	123	if ($reflection instanceof ReflectionFunction) {
371	84	$params = $reflection->getParameters();
372		}
373
374	123	$value = $this->buildDependencies($params, $arguments);
375	117	$this->entriesBeingResolved = [];
376
377	117	return $value;
378		}
379
380		/**
381		* @param mixed $id
382		* @param array<string, mixed> $arguments
383		*
384		* @throws ReflectionException
385		*
386		* @return object
387		*/
388	48	private function resolveClass($id, array $arguments = [])
389		{
390	48	$reflection = new ReflectionClass($id);
391
392	48	return $reflection->newInstanceArgs($this->resolveArguments($reflection, $arguments));
393		}
394
395		/**
396		* @param array<string, mixed> $arguments
397		*
398		* @throws ReflectionException
399		*
400		* @return mixed
401		*/
402	105	private function resolveEntry(string $id, array $arguments = [])
403		{
404	105	$get = $this->bindings[$id] ?? $this->share[$id];
405
406	105	if ($get instanceof Closure) {
407	84	$reflection = new ReflectionFunction($get);
408	84	$value = $reflection->invokeArgs($this->resolveArguments($reflection, $arguments));
409
410	84	if (true === array_key_exists($id, $this->share)) {
411	57	$this->resolved[$id] = $value;
412		}
413
414	84	return $value;
415		}
416
417	24	return $get;
418		}
419		}
420

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