Container::get() - Code Metrics - Inspection of "Dissallow ContainerInterface extesions" - yiisoft/di - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Pull Request — master (#279)

by Dmitriy

created 2021-11-29 11:24 UTC

Container::get() B

↳ Parent: Container

Complexity

Conditions	10
Paths	9

Size

Total Lines	33
Code Lines	18

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	16
CRAP Score	10.1371

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	10
eloc	18
c	1
b	0
f	0
nc	9
nop	1
dl	0
loc	33
ccs	16
cts	18
cp	0.8889
crap	10.1371
rs	7.6666

How to fix Complexity

<?php

declare(strict_types=1);

namespace Yiisoft\Di;

use Closure;
use InvalidArgumentException;
use Psr\Container\ContainerInterface;
use Yiisoft\Definitions\ArrayDefinition;
use Yiisoft\Definitions\Exception\CircularReferenceException;
use Yiisoft\Definitions\Exception\InvalidConfigException;
use Yiisoft\Definitions\Exception\NotInstantiableException;
use Yiisoft\Definitions\Helpers\DefinitionValidator;
use Yiisoft\Definitions\DefinitionStorage;

use function array_key_exists;
use function array_keys;
use function get_class;
use function gettype;
use function implode;
use function in_array;
use function is_array;
use function is_object;
use function is_string;

/**
 * Container implements a [dependency injection](http://en.wikipedia.org/wiki/Dependency_injection) container.
 */
final class Container implements ContainerInterface
{
    private const META_TAGS = 'tags';
    private const META_RESET = 'reset';
    private const ALLOWED_META = [self::META_TAGS, self::META_RESET];

    /**
     * @var DefinitionStorage Storage of object definitions.
     */
    private DefinitionStorage $definitions;
    /**
     * @var array Used to collect IDs of objects instantiated during build
     * to detect circular references.
     */
    private array $building = [];

    /**
     * @var bool $validate If definitions should be validated.
     */
    private bool $validate;

    /**
     * @var object[]
     */
    private array $instances = [];

    private CompositeContainer $delegates;

    /**
     * @var array Tagged service IDs. The structure is `['tagID' => ['service1', 'service2']]`.
     */
    private array $tags;

    private array $resetters = [];

    /**
     * Container constructor.
     *
     * @param ContainerConfigInterface $config Container configuration.
     *
     * @throws InvalidConfigException
     * @psalm-suppress PropertyNotSetInConstructor
     */
    public function __construct(ContainerConfigInterface $config)
    {
        $this->definitions = new DefinitionStorage([], $config->useStrictMode());
        $this->tags = $config->getTags();
        $this->validate = $config->shouldValidate();
        $this->setDefaultDefinitions();
        $this->setMultiple($config->getDefinitions());
        $this->addProviders($config->getProviders());
        $this->setDelegates($config->getDelegates());
    }

    /**
     * Returns a value indicating whether the container has the definition of the specified name.
     *
     * @param string $id Class name, interface name or alias name.
     *
     * @return bool Whether the container is able to provide instance of class specified.
     *
     * @see set()
     */
    public function has($id): bool
    {
        /** @psalm-suppress  DocblockTypeContradiction */
        if (!is_string($id)) {

            return false;
        }

        if ($this->isTagAlias($id)) {
            $tag = substr($id, 4);
            return isset($this->tags[$tag]);
        }

        try {
            return $this->definitions->has($id);
        } catch (CircularReferenceException $e) {
            return true;
        }
    }

    /**
     * Returns an instance by either interface name or alias.
     *
     * Same instance of the class will be returned each time this method is called.
     *
     * @param string $id The interface or an alias name that was previously registered.
     *
     * @throws CircularReferenceException
     * @throws InvalidConfigException
     * @throws NotFoundException
     * @throws NotInstantiableException
     *
     * @return mixed|object An instance of the requested interface.
     *
     * @psalm-template T
     * @psalm-param string|class-string<T> $id
     * @psalm-return ($id is class-string ? T : mixed)
     */
    public function get($id)
    {
        /** @psalm-suppress TypeDoesNotContainType */
        if (!is_string($id)) {

            throw new InvalidArgumentException("Id must be a string, {$this->getVariableType($id)} given.");
        }

        if (!array_key_exists($id, $this->instances)) {
            try {
                $this->instances[$id] = $this->build($id);
            } catch (NotFoundException $e) {
                if (!$this->delegates->has($id)) {
                    throw $e;
                }

                return $this->delegates->get($id);
            }
        }

        if ($id === StateResetter::class && $this->definitions->get($id) === StateResetter::class) {
            $resetters = [];
            foreach ($this->resetters as $serviceId => $callback) {
                if (isset($this->instances[$serviceId])) {
                    $resetters[$serviceId] = $callback;
                }
            }
            if ($this->delegates->has(StateResetter::class)) {
                $resetters[] = $this->delegates->get(StateResetter::class);
            }
            $this->instances[$id]->setResetters($resetters);
        }

        return $this->instances[$id];
    }

    /**
     * Sets a definition to the container. Definition may be defined multiple ways.
     *
     * @param string $id ID to set definition for.
     * @param mixed $definition Definition to set.
     *
     * @throws InvalidConfigException
     *
     * @see DefinitionNormalizer::normalize()
     */
    private function set(string $id, $definition): void
    {
        [$definition, $meta] = DefinitionParser::parse($definition);
        if ($this->validate) {
            $this->validateDefinition($definition, $id);
            $this->validateMeta($meta);
        }

        if (isset($meta[self::META_TAGS])) {
            if ($this->validate) {
                $this->validateTags($meta[self::META_TAGS]);
            }
            $this->setTags($id, $meta[self::META_TAGS]);
        }
        if (isset($meta[self::META_RESET])) {
            $this->setResetter($id, $meta[self::META_RESET]);
        }

        unset($this->instances[$id]);
        $this->definitions->set($id, $definition);
    }

    /**
     * Sets multiple definitions at once.
     *
     * @param array $config Definitions indexed by their IDs.
     *
     * @throws InvalidConfigException
     */
    private function setMultiple(array $config): void
    {
        foreach ($config as $id => $definition) {
            if ($this->validate && !is_string($id)) {
                throw new InvalidConfigException(sprintf('Key must be a string. %s given.', $this->getVariableType($id)));
            }
            $this->set($id, $definition);
        }
    }

    private function setDefaultDefinitions(): void
    {
        $this->setMultiple([
            ContainerInterface::class => $this,
            StateResetter::class => StateResetter::class,
        ]);
    }

    /**
     * Set container delegates.
     *
     * Each delegate must is a callable in format "function (ContainerInterface $container): ContainerInterface".
     * The container instance returned is used in case a service can not be found in primary container.
     *
     * @param array $delegates
     *
     * @throws InvalidConfigException
     */
    private function setDelegates(array $delegates): void
    {
        $this->delegates = new CompositeContainer();
        foreach ($delegates as $delegate) {
            if (!$delegate instanceof Closure) {
                throw new InvalidConfigException(
                    'Delegate must be callable in format "function (ContainerInterface $container): ContainerInterface".'
                );
            }

            $delegate = $delegate($this);

            if (!$delegate instanceof ContainerInterface) {
                throw new InvalidConfigException(
                    'Delegate callable must return an object that implements ContainerInterface.'
                );
            }

            $this->delegates->attach($delegate);
        }
        $this->definitions->setDelegateContainer($this->delegates);
    }

    /**
     * @param mixed $definition Definition to validate.
     * @param string|null $id ID of the definition to validate.
     *
     * @throws InvalidConfigException
     */
    private function validateDefinition($definition, ?string $id = null): void
    {
        if (is_array($definition) && isset($definition[DefinitionParser::IS_PREPARED_ARRAY_DEFINITION_DATA])) {
            $class = $definition['class'];
            $constructorArguments = $definition['__construct()'];
            $methodsAndProperties = $definition['methodsAndProperties'];
            $definition = array_merge(
                $class === null ? [] : [ArrayDefinition::CLASS_NAME => $class],
                [ArrayDefinition::CONSTRUCTOR => $constructorArguments],
                $methodsAndProperties,
            );
        }

        if ($definition instanceof ExtensibleService) {
            throw new InvalidConfigException('Invalid definition. ExtensibleService is only allowed in provider extensions.');
        }

        DefinitionValidator::validate($definition, $id);
    }

    /**
     * @throws InvalidConfigException
     */
    private function validateMeta(array $meta): void
    {
        foreach ($meta as $key => $_value) {
            if (!in_array($key, self::ALLOWED_META, true)) {
                throw new InvalidConfigException(
                    sprintf(
                        'Invalid definition: metadata "%s" is not allowed. Did you mean "%s()" or "$%s"?',
                        $key,
                        $key,
                        $key,
                    )
                );
            }
        }
    }

    private function validateTags(array $tags): void
    {
        foreach ($tags as $tag) {
            if (!is_string($tag)) {
                throw new InvalidConfigException('Invalid tag. Expected a string, got ' . var_export($tag, true) . '.');
            }
        }
    }

    private function setTags(string $id, array $tags): void
    {
        foreach ($tags as $tag) {
            if (!isset($this->tags[$tag]) || !in_array($id, $this->tags[$tag], true)) {
                $this->tags[$tag][] = $id;
            }
        }
    }

    private function setResetter(string $id, Closure $resetter): void
    {
        $this->resetters[$id] = $resetter;
    }

    /**
     * Creates new instance by either interface name or alias.
     *
     * @param string $id The interface or an alias name that was previously registered.
     *
     * @throws CircularReferenceException
     * @throws InvalidConfigException
     * @throws NotFoundException
     *
     * @return mixed|object New built instance of the specified class.
     *
     * @internal
     */
    private function build(string $id)
    {
        if ($this->isTagAlias($id)) {
            return $this->getTaggedServices($id);
        }

        if (isset($this->building[$id])) {
            if ($id === ContainerInterface::class) {
                return $this;
            }
            throw new CircularReferenceException(sprintf(
                'Circular reference to "%s" detected while building: %s.',
                $id,
                implode(', ', array_keys($this->building))
            ));
        }

        $this->building[$id] = 1;
        try {
            $object = $this->buildInternal($id);
        } finally {
            unset($this->building[$id]);
        }

        return $object;
    }

    private function isTagAlias(string $id): bool
    {
        return strncmp($id, 'tag@', 4) === 0;
    }

    private function getTaggedServices(string $tagAlias): array
    {
        $tag = substr($tagAlias, 4);
        $services = [];
        if (isset($this->tags[$tag])) {
            foreach ($this->tags[$tag] as $service) {
                $services[] = $this->get($service);
            }
        }

        return $services;
    }

    /**
     * @param string $id
     *
     * @throws InvalidConfigException
     * @throws NotFoundException
     *
     * @return mixed|object
     */
    private function buildInternal(string $id)
    {
        if ($this->definitions->has($id)) {
            $definition = DefinitionNormalizer::normalize($this->definitions->get($id), $id);

            return $definition->resolve($this->get(ContainerInterface::class));
        }

        throw new NotFoundException($id, $this->definitions->getBuildStack());
    }

    private function addProviders(array $providers): void
    {
        $extensions = [];
        foreach ($providers as $provider) {
            $providerInstance = $this->buildProvider($provider);
            $extensions[] = $providerInstance->getExtensions();
            $this->addProviderDefinitions($providerInstance);
        }

        foreach ($extensions as $providerExtensions) {
            foreach ($providerExtensions as $id => $extension) {
                if ($id === ContainerInterface::class) {
                    throw new InvalidConfigException("ContainerInterface extensions are not allowed.");
                }

                if (!$this->definitions->has($id)) {
                    throw new InvalidConfigException("Extended service \"$id\" doesn't exist.");
                }

                $definition = $this->definitions->get($id);
                if (!$definition instanceof ExtensibleService) {
                    $definition = new ExtensibleService($definition);
                    $this->definitions->set($id, $definition);
                }

                $definition->addExtension($extension);
            }
        }
    }

    /**
     * Adds service provider definitions to the container.
     *
     * @param ServiceProviderInterface $provider Provider to get definitions from.
     *
     * @throws InvalidConfigException
     * @throws NotInstantiableException
     */
    private function addProviderDefinitions(ServiceProviderInterface $provider): void
    {
        $definitions = $provider->getDefinitions();
        $this->setMultiple($definitions);
    }

    /**
     * Builds service provider by definition.
     *
     * @param mixed $provider Class name or instance of provider.
     *
     * @throws InvalidConfigException If provider argument is not valid.
     *
     * @return ServiceProviderInterface Instance of service provider.
     *
     * @psalm-suppress MoreSpecificReturnType
     */
    private function buildProvider($provider): ServiceProviderInterface
    {
        if ($this->validate && !(is_string($provider) || $provider instanceof ServiceProviderInterface)) {
            throw new InvalidConfigException(
                sprintf(
                    'Service provider should be a class name or an instance of %s. %s given.',
                    ServiceProviderInterface::class,
                    $this->getVariableType($provider)
                )
            );
        }

        $providerInstance = is_object($provider) ? $provider : new $provider();
        if (!$providerInstance instanceof ServiceProviderInterface) {
            throw new InvalidConfigException(
                sprintf(
                    'Service provider should be an instance of %s. %s given.',
                    ServiceProviderInterface::class,
                    $this->getVariableType($providerInstance)
                )
            );
        }

        /**
         * @psalm-suppress LessSpecificReturnStatement
         */
        return $providerInstance;
    }

    /**
     * @param mixed $variable
     */
    private function getVariableType($variable): string
    {
        return is_object($variable) ? get_class($variable) : gettype($variable);
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		namespace Yiisoft\Di;
6
7		use Closure;
8		use InvalidArgumentException;
9		use Psr\Container\ContainerInterface;
10		use Yiisoft\Definitions\ArrayDefinition;
11		use Yiisoft\Definitions\Exception\CircularReferenceException;
12		use Yiisoft\Definitions\Exception\InvalidConfigException;
13		use Yiisoft\Definitions\Exception\NotInstantiableException;
14		use Yiisoft\Definitions\Helpers\DefinitionValidator;
15		use Yiisoft\Definitions\DefinitionStorage;
16
17		use function array_key_exists;
18		use function array_keys;
19		use function get_class;
20		use function gettype;
21		use function implode;
22		use function in_array;
23		use function is_array;
24		use function is_object;
25		use function is_string;
26
27		/**
28		* Container implements a [dependency injection](http://en.wikipedia.org/wiki/Dependency_injection) container.
29		*/
30		final class Container implements ContainerInterface
31		{
32		private const META_TAGS = 'tags';
33		private const META_RESET = 'reset';
34		private const ALLOWED_META = [self::META_TAGS, self::META_RESET];
35
36		/**
37		* @var DefinitionStorage Storage of object definitions.
38		*/
39		private DefinitionStorage $definitions;
40		/**
41		* @var array Used to collect IDs of objects instantiated during build
42		* to detect circular references.
43		*/
44		private array $building = [];
45
46		/**
47		* @var bool $validate If definitions should be validated.
48		*/
49		private bool $validate;
50
51		/**
52		* @var object[]
53		*/
54		private array $instances = [];
55
56		private CompositeContainer $delegates;
57
58		/**
59		* @var array Tagged service IDs. The structure is `['tagID' => ['service1', 'service2']]`.
60		*/
61		private array $tags;
62
63		private array $resetters = [];
64
65		/**
66		* Container constructor.
67		*
68		* @param ContainerConfigInterface $config Container configuration.
69		*
70		* @throws InvalidConfigException
71		* @psalm-suppress PropertyNotSetInConstructor
72		*/
73	99	public function __construct(ContainerConfigInterface $config)
74		{
75	99	$this->definitions = new DefinitionStorage([], $config->useStrictMode());
76	99	$this->tags = $config->getTags();
77	99	$this->validate = $config->shouldValidate();
78	99	$this->setDefaultDefinitions();
79	99	$this->setMultiple($config->getDefinitions());
80	93	$this->addProviders($config->getProviders());
81	91	$this->setDelegates($config->getDelegates());
82	91	}
83
84		/**
85		* Returns a value indicating whether the container has the definition of the specified name.
86		*
87		* @param string $id Class name, interface name or alias name.
88		*
89		* @return bool Whether the container is able to provide instance of class specified.
90		*
91		* @see set()
92		*/
93	29	public function has($id): bool
94		{
95		/** @psalm-suppress DocblockTypeContradiction */
96	29	if (!is_string($id)) {
		0 ignored issues – show introduced 2021-08-10 08:46 UTC by Report Bug Copy Issue Report The condition `is_string($id)` is always `true`. Loading history...
97		return false;
98		}
99
100	29	if ($this->isTagAlias($id)) {
101	2	$tag = substr($id, 4);
102	2	return isset($this->tags[$tag]);
103		}
104
105		try {
106	27	return $this->definitions->has($id);
107	2	} catch (CircularReferenceException $e) {
108	2	return true;
109		}
110		}
111
112		/**
113		* Returns an instance by either interface name or alias.
114		*
115		* Same instance of the class will be returned each time this method is called.
116		*
117		* @param string $id The interface or an alias name that was previously registered.
118		*
119		* @throws CircularReferenceException
120		* @throws InvalidConfigException
121		* @throws NotFoundException
122		* @throws NotInstantiableException
123		*
124		* @return mixed\|object An instance of the requested interface.
125		*
126		* @psalm-template T
127		* @psalm-param string\|class-string<T> $id
128		* @psalm-return ($id is class-string ? T : mixed)
129		*/
130	87	public function get($id)
131		{
132		/** @psalm-suppress TypeDoesNotContainType */
133	87	if (!is_string($id)) {
		0 ignored issues – show introduced 2021-08-10 08:46 UTC by Report Bug Copy Issue Report The condition `is_string($id)` is always `true`. Loading history...
134		throw new InvalidArgumentException("Id must be a string, {$this->getVariableType($id)} given.");
135		}
136
137	87	if (!array_key_exists($id, $this->instances)) {
138		try {
139	87	$this->instances[$id] = $this->build($id);
140	17	} catch (NotFoundException $e) {
141	8	if (!$this->delegates->has($id)) {
142	7	throw $e;
143		}
144
145	1	return $this->delegates->get($id);
146		}
147		}
148
149	78	if ($id === StateResetter::class && $this->definitions->get($id) === StateResetter::class) {
150	4	$resetters = [];
151	4	foreach ($this->resetters as $serviceId => $callback) {
152	4	if (isset($this->instances[$serviceId])) {
153	4	$resetters[$serviceId] = $callback;
154		}
155		}
156	4	if ($this->delegates->has(StateResetter::class)) {
157		$resetters[] = $this->delegates->get(StateResetter::class);
158		}
159	4	$this->instances[$id]->setResetters($resetters);
160		}
161
162	78	return $this->instances[$id];
163		}
164
165		/**
166		* Sets a definition to the container. Definition may be defined multiple ways.
167		*
168		* @param string $id ID to set definition for.
169		* @param mixed $definition Definition to set.
170		*
171		* @throws InvalidConfigException
172		*
173		* @see DefinitionNormalizer::normalize()
174		*/
175	99	private function set(string $id, $definition): void
176		{
177	99	[$definition, $meta] = DefinitionParser::parse($definition);
178	99	if ($this->validate) {
179	99	$this->validateDefinition($definition, $id);
180	99	$this->validateMeta($meta);
181		}
182
183	99	if (isset($meta[self::META_TAGS])) {
184	8	if ($this->validate) {
185	8	$this->validateTags($meta[self::META_TAGS]);
186		}
187	8	$this->setTags($id, $meta[self::META_TAGS]);
188		}
189	99	if (isset($meta[self::META_RESET])) {
190	5	$this->setResetter($id, $meta[self::META_RESET]);
191		}
192
193	99	unset($this->instances[$id]);
194	99	$this->definitions->set($id, $definition);
195	99	}
196
197		/**
198		* Sets multiple definitions at once.
199		*
200		* @param array $config Definitions indexed by their IDs.
201		*
202		* @throws InvalidConfigException
203		*/
204	99	private function setMultiple(array $config): void
205		{
206	99	foreach ($config as $id => $definition) {
207	99	if ($this->validate && !is_string($id)) {
208	1	throw new InvalidConfigException(sprintf('Key must be a string. %s given.', $this->getVariableType($id)));
209		}
210	99	$this->set($id, $definition);
211		}
212	99	}
213
214	99	private function setDefaultDefinitions(): void
215		{
216	99	$this->setMultiple([
217	99	ContainerInterface::class => $this,
218		StateResetter::class => StateResetter::class,
219		]);
220	99	}
221
222		/**
223		* Set container delegates.
224		*
225		* Each delegate must is a callable in format "function (ContainerInterface $container): ContainerInterface".
226		* The container instance returned is used in case a service can not be found in primary container.
227		*
228		* @param array $delegates
229		*
230		* @throws InvalidConfigException
231		*/
232	91	private function setDelegates(array $delegates): void
233		{
234	91	$this->delegates = new CompositeContainer();
235	91	foreach ($delegates as $delegate) {
236	1	if (!$delegate instanceof Closure) {
237		throw new InvalidConfigException(
238		'Delegate must be callable in format "function (ContainerInterface $container): ContainerInterface".'
239		);
240		}
241
242	1	$delegate = $delegate($this);
243
244	1	if (!$delegate instanceof ContainerInterface) {
245		throw new InvalidConfigException(
246		'Delegate callable must return an object that implements ContainerInterface.'
247		);
248		}
249
250	1	$this->delegates->attach($delegate);
251		}
252	91	$this->definitions->setDelegateContainer($this->delegates);
253	91	}
254
255		/**
256		* @param mixed $definition Definition to validate.
257		* @param string\|null $id ID of the definition to validate.
258		*
259		* @throws InvalidConfigException
260		*/
261	99	private function validateDefinition($definition, ?string $id = null): void
262		{
263	99	if (is_array($definition) && isset($definition[DefinitionParser::IS_PREPARED_ARRAY_DEFINITION_DATA])) {
264	36	$class = $definition['class'];
265	36	$constructorArguments = $definition['__construct()'];
266	36	$methodsAndProperties = $definition['methodsAndProperties'];
267	36	$definition = array_merge(
268	36	$class === null ? [] : [ArrayDefinition::CLASS_NAME => $class],
269	36	[ArrayDefinition::CONSTRUCTOR => $constructorArguments],
270		$methodsAndProperties,
271		);
272		}
273
274	99	if ($definition instanceof ExtensibleService) {
275		throw new InvalidConfigException('Invalid definition. ExtensibleService is only allowed in provider extensions.');
276		}
277
278	99	DefinitionValidator::validate($definition, $id);
279	99	}
280
281		/**
282		* @throws InvalidConfigException
283		*/
284	99	private function validateMeta(array $meta): void
285		{
286	99	foreach ($meta as $key => $_value) {
287	16	if (!in_array($key, self::ALLOWED_META, true)) {
288	3	throw new InvalidConfigException(
289	3	sprintf(
290	3	'Invalid definition: metadata "%s" is not allowed. Did you mean "%s()" or "$%s"?',
291		$key,
292		$key,
293		$key,
294		)
295		);
296		}
297		}
298	99	}
299
300	8	private function validateTags(array $tags): void
301		{
302	8	foreach ($tags as $tag) {
303	8	if (!is_string($tag)) {
304		throw new InvalidConfigException('Invalid tag. Expected a string, got ' . var_export($tag, true) . '.');
305		}
306		}
307	8	}
308
309	8	private function setTags(string $id, array $tags): void
310		{
311	8	foreach ($tags as $tag) {
312	8	if (!isset($this->tags[$tag]) \|\| !in_array($id, $this->tags[$tag], true)) {
313	8	$this->tags[$tag][] = $id;
314		}
315		}
316	8	}
317
318	4	private function setResetter(string $id, Closure $resetter): void
319		{
320	4	$this->resetters[$id] = $resetter;
321	4	}
322
323		/**
324		* Creates new instance by either interface name or alias.
325		*
326		* @param string $id The interface or an alias name that was previously registered.
327		*
328		* @throws CircularReferenceException
329		* @throws InvalidConfigException
330		* @throws NotFoundException
331		*
332		* @return mixed\|object New built instance of the specified class.
333		*
334		* @internal
335		*/
336	87	private function build(string $id)
337		{
338	87	if ($this->isTagAlias($id)) {
339	9	return $this->getTaggedServices($id);
340		}
341
342	86	if (isset($this->building[$id])) {
343	77	if ($id === ContainerInterface::class) {
344	77	return $this;
345		}
346	4	throw new CircularReferenceException(sprintf(
347	4	'Circular reference to "%s" detected while building: %s.',
348		$id,
349	4	implode(', ', array_keys($this->building))
350		));
351		}
352
353	86	$this->building[$id] = 1;
354		try {
355	86	$object = $this->buildInternal($id);
356	77	} finally {
357	86	unset($this->building[$id]);
358		}
359
360	77	return $object;
361		}
362
363	91	private function isTagAlias(string $id): bool
364		{
365	91	return strncmp($id, 'tag@', 4) === 0;
366		}
367
368	9	private function getTaggedServices(string $tagAlias): array
369		{
370	9	$tag = substr($tagAlias, 4);
371	9	$services = [];
372	9	if (isset($this->tags[$tag])) {
373	8	foreach ($this->tags[$tag] as $service) {
374	8	$services[] = $this->get($service);
375		}
376		}
377
378	9	return $services;
379		}
380
381		/**
382		* @param string $id
383		*
384		* @throws InvalidConfigException
385		* @throws NotFoundException
386		*
387		* @return mixed\|object
388		*/
389	86	private function buildInternal(string $id)
390		{
391	86	if ($this->definitions->has($id)) {
392	77	$definition = DefinitionNormalizer::normalize($this->definitions->get($id), $id);
393
394	77	return $definition->resolve($this->get(ContainerInterface::class));
395		}
396
397	8	throw new NotFoundException($id, $this->definitions->getBuildStack());
398		}
399
400	93	private function addProviders(array $providers): void
401		{
402	93	$extensions = [];
403	93	foreach ($providers as $provider) {
404	7	$providerInstance = $this->buildProvider($provider);
405	7	$extensions[] = $providerInstance->getExtensions();
406	7	$this->addProviderDefinitions($providerInstance);
407		}
408
409	93	foreach ($extensions as $providerExtensions) {
410	7	foreach ($providerExtensions as $id => $extension) {
411	6	if ($id === ContainerInterface::class) {
412	1	throw new InvalidConfigException("ContainerInterface extensions are not allowed.");
413		}
414
415	5	if (!$this->definitions->has($id)) {
416	1	throw new InvalidConfigException("Extended service \"$id\" doesn't exist.");
417		}
418
419	5	$definition = $this->definitions->get($id);
420	5	if (!$definition instanceof ExtensibleService) {
421	5	$definition = new ExtensibleService($definition);
422	5	$this->definitions->set($id, $definition);
423		}
424
425	5	$definition->addExtension($extension);
426		}
427		}
428	91	}
429
430		/**
431		* Adds service provider definitions to the container.
432		*
433		* @param ServiceProviderInterface $provider Provider to get definitions from.
434		*
435		* @throws InvalidConfigException
436		* @throws NotInstantiableException
437		*/
438	7	private function addProviderDefinitions(ServiceProviderInterface $provider): void
439		{
440	7	$definitions = $provider->getDefinitions();
441	7	$this->setMultiple($definitions);
442	7	}
443
444		/**
445		* Builds service provider by definition.
446		*
447		* @param mixed $provider Class name or instance of provider.
448		*
449		* @throws InvalidConfigException If provider argument is not valid.
450		*
451		* @return ServiceProviderInterface Instance of service provider.
452		*
453		* @psalm-suppress MoreSpecificReturnType
454		*/
455	7	private function buildProvider($provider): ServiceProviderInterface
456		{
457	7	if ($this->validate && !(is_string($provider) \|\| $provider instanceof ServiceProviderInterface)) {
458		throw new InvalidConfigException(
459		sprintf(
460		'Service provider should be a class name or an instance of %s. %s given.',
461		ServiceProviderInterface::class,
462		$this->getVariableType($provider)
463		)
464		);
465		}
466
467	7	$providerInstance = is_object($provider) ? $provider : new $provider();
468	7	if (!$providerInstance instanceof ServiceProviderInterface) {
469		throw new InvalidConfigException(
470		sprintf(
471		'Service provider should be an instance of %s. %s given.',
472		ServiceProviderInterface::class,
473		$this->getVariableType($providerInstance)
474		)
475		);
476		}
477
478		/**
479		* @psalm-suppress LessSpecificReturnStatement
480		*/
481	7	return $providerInstance;
482		}
483
484		/**
485		* @param mixed $variable
486		*/
487	1	private function getVariableType($variable): string
488		{
489	1	return is_object($variable) ? get_class($variable) : gettype($variable);
490		}
491		}
492

yiisoft / di

Pull Request — master (#279)

Container::get() B

Complexity

Size

Duplication

Code Coverage

Importance

How to fix Complexity

Long Method

Duplication Side-by-Side

Filter issues like