Container::addProviderDefinitions() - Code Metrics - Inspection of "New providers" - yiisoft/di - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Pull Request — master (#233)

by Dmitriy

created 2021-08-06 06:29 UTC

Container::addProviderDefinitions() A

↳ Parent: Container

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	3
CRAP Score	1

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	1
eloc	2
c	1
b	0
f	0
nc	1
nop	1
dl	0
loc	4
ccs	3
cts	3
cp	1
crap	1
rs	10

<?php

declare(strict_types=1);

namespace Yiisoft\Di;

use Closure;
use Psr\Container\ContainerInterface;
use Yiisoft\Di\Contracts\ServiceProviderInterface;
use Yiisoft\Factory\Definition\ArrayDefinition;
use Yiisoft\Factory\Definition\DefinitionValidator;
use Yiisoft\Factory\Exception\CircularReferenceException;
use Yiisoft\Factory\Exception\InvalidConfigException;
use Yiisoft\Factory\Exception\NotFoundException;
use Yiisoft\Factory\Exception\NotInstantiableException;
use Yiisoft\Injector\Injector;

use function array_key_exists;
use function array_keys;
use function class_exists;
use function get_class;
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 array object definitions indexed by their types
     */
    private array $definitions = [];
    /**
     * @var array used to collect ids instantiated during build
     * to detect circular references
     */
    private array $building = [];

    /**
     * @var bool $validate Validate definitions when set
     */
    private bool $validate;

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

    private array $tags;

    private array $resetters = [];
    /** @psalm-suppress PropertyNotSetInConstructor */
    private DependencyResolver $dependencyResolver;

    /**
     * Container constructor.
     *
     * @param array $definitions Definitions to put into container.
     * @param array $providers Service providers to get definitions from.
     * lookup to when resolving dependencies. If provided the current container
     * is no longer queried for dependencies.
     *
     * @throws InvalidConfigException
     *
     * @psalm-suppress PropertyNotSetInConstructor
     */
    public function __construct(
        array $definitions = [],
        array $providers = [],
        array $tags = [],
        bool $validate = true
    ) {
        $this->tags = $tags;
        $this->validate = $validate;
        $this->setDefaultDefinitions();
        $this->setMultiple($definitions);
        $this->addProviders($providers);
    }

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

        return isset($this->definitions[$id]) || class_exists($id);
    }

    /**
     * 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($id)
    {
        if ($id === StateResetter::class && !isset($this->definitions[$id])) {
            $resetters = [];
            foreach ($this->resetters as $serviceId => $callback) {
                if (isset($this->instances[$serviceId])) {
                    $resetters[] = $callback->bindTo($this->instances[$serviceId], get_class($this->instances[$serviceId]));
                }
            }
            return new StateResetter($resetters, $this);
        }

        if (!array_key_exists($id, $this->instances)) {
            $this->instances[$id] = $this->build($id);
        }

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

    /**
     * Sets a definition to the container. Definition may be defined multiple ways.
     *
     * @param string $id
     * @param mixed $definition
     *
     * @throws InvalidConfigException
     *
     * @see `DefinitionNormalizer::normalize()`
     */
    protected 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]);
        $this->definitions[$id] = $definition;
    }

    /**
     * Sets multiple definitions at once.
     *
     * @param array $config definitions indexed by their ids
     *
     * @throws InvalidConfigException
     */
    protected 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 => $this,
            Injector::class => new Injector($this),
        ]);
    }

    /**
     * @param mixed $definition
     *
     * @throws InvalidConfigException
     */
    private function validateDefinition($definition, ?string $id = null): void
    {
        if (is_array($definition) && isset($definition[DefinitionParser::IS_PREPARED_ARRAY_DEFINITION_DATA])) {
            [$class, $constructorArguments, $methodsAndProperties] = $definition;
            $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 $id): bool
    {
        return strpos($id, 'tag@') === 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 $id)
    {
        if (!isset($this->definitions[$id])) {
            return $this->buildPrimitive($id);
        }
        $definition = DefinitionNormalizer::normalize($this->definitions[$id], $id);
        /** @psalm-suppress RedundantPropertyInitializationCheck */
        $this->dependencyResolver ??= new DependencyResolver($this->get(ContainerInterface::class));

        return $definition->resolve($this->dependencyResolver);
    }

    /**
     * @param string $class
     *
     * @throws InvalidConfigException
     * @throws NotFoundException
     *
     * @return mixed|object
     */
    private function buildPrimitive(string $class)
    {
        if (class_exists($class)) {
            $definition = ArrayDefinition::fromPreparedData($class);
            /** @psalm-suppress RedundantPropertyInitializationCheck */
            $this->dependencyResolver ??= new DependencyResolver($this->get(ContainerInterface::class));

            return $definition->resolve($this->dependencyResolver);
        }

        throw new NotFoundException($class);
    }

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

                if (!$this->definitions[$id] instanceof ExtensibleService) {
                    $this->definitions[$id] = new ExtensibleService($this->definitions[$id]);
                }

                $this->definitions[$id]->addExtension($extension);
            }
        }
    }

    /**
     * Adds service provider definitions to the container.
     *
     * @param object $provider
     *
     * @throws InvalidConfigException
     * @throws NotInstantiableException
     *
     * @see ServiceProviderInterface
     */
    private function addProviderDefinitions($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) || is_object($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
    {
        if (is_object($variable)) {
            return get_class($variable);
        }

        return gettype($variable);
    }
}


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

yiisoft / di

Pull Request — master (#233)

Container::addProviderDefinitions() A

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