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

Passed

Push — psalm ( 5f77d0 )

by Sergei

created 2021-12-02 15:46 UTC

Container::setDefinitionResetter() A

↳ Parent: Container

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	1

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	2
CRAP Score	1

Importance

Changes

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

<?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_callable;
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;

    private array $instances = [];

    private CompositeContainer $delegates;

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

    /**
     * @var Closure[]
     */
    private array $resetters = [];
    private bool $useResettersFromMeta = true;

    /**
     * Container constructor.
     *
     * @param ContainerConfigInterface $config Container configuration.
     *
     * @throws InvalidConfigException
     * @psalm-suppress PropertyNotSetInConstructor
     */
    public function __construct(ContainerConfigInterface $config)
    {
        $this->definitions = new DefinitionStorage(
            [
                ContainerInterface::class => $this,
                StateResetter::class => StateResetter::class,
            ],
            $config->useStrictMode()
        );
        $this->validate = $config->shouldValidate();
        $this->setTags($config->getTags());
        $this->setMultiple($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;
                }

                /** @psalm-suppress MixedReturnStatement */
                return $this->delegates->get($id);
            }
        }

        if ($this->useResettersFromMeta && $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);
            }
            /** @psalm-suppress MixedMethodCall Instance of `StateResetter` */
            $this->instances[$id]->setResetters($resetters);
        }

        /** @psalm-suppress MixedReturnStatement */
        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
    {
        /** @var mixed $definition */
        [$definition, $meta] = DefinitionParser::parse($definition);
        if ($this->validate) {
            $this->validateDefinition($definition, $id);
            $this->validateMeta($meta);
        }
        /**
         * @psalm-var array{reset?:Closure,tags?:string[]} $meta
         */

        if (isset($meta[self::META_TAGS])) {
            $this->setDefinitionTags($id, $meta[self::META_TAGS]);
        }
        if (isset($meta[self::META_RESET])) {
            $this->setDefinitionResetter($id, $meta[self::META_RESET]);
        }

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

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

            $this->set($id, $definition);
        }
    }

    /**
     * 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".'
                );
            }

            /** @var 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])) {
            /** @var mixed $class */
            $class = $definition['class'];

            /** @var mixed $constructorArguments */
            $constructorArguments = $definition['__construct()'];

            /**
             * @var array $methodsAndProperties Is always array for prepared array definion data
             * @see DefinitionParser::parse()
             */
            $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
    {
        /** @var mixed $value */
        foreach ($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,
                    )
                );
            }

            if ($key === self::META_TAGS) {
                $this->validateDefinitionTags($value);
            }

            if ($key === self::META_RESET) {
                $this->validateDefinitionReset($value);
            }
        }
    }

    /**
     * @param mixed $tags
     *
     * @throws InvalidConfigException
     */
    private function validateDefinitionTags($tags): void
    {
        if (!is_array($tags)) {
            throw new InvalidConfigException(
                sprintf(
                    'Invalid definition: tags should be array of strings, %s given.',
                    $this->getVariableType($tags)
                )
            );
        }

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

    /**
     * @param mixed $reset
     *
     * @throws InvalidConfigException
     */
    public function validateDefinitionReset($reset): void
    {
        if (!$reset instanceof Closure) {
            throw new InvalidConfigException(
                sprintf(
                    'Invalid definition: "reset" should be closure, %s given.',
                    $this->getVariableType($reset)
                )
            );
        }
    }

    /**
     * @throws InvalidConfigException
     */
    private function setTags(array $tags): void
    {
        if ($this->validate) {
            foreach ($tags as $tag => $services) {
                if (!is_string($tag)) {
                    throw new InvalidConfigException(
                        sprintf(
                            'Invalid tags configuration: tag should be string, %s given.',
                            $tag
                        )
                    );
                }
                if (!is_array($services)) {
                    throw new InvalidConfigException(
                        sprintf(
                            'Invalid tags configuration: tag should contain array of service IDs, %s given.',
                            $this->getVariableType($services)
                        )
                    );
                }
                foreach ($services as $service) {
                    if (!is_string($service)) {
                        throw new InvalidConfigException(
                            sprintf(
                                'Invalid tags configuration: service should be defined as class string, %s given.',
                                $this->getVariableType($service)
                            )
                        );
                    }
                }
            }
        }
        /** @psalm-var array<string, list<string>> $tags */

        $this->tags = $tags;
    }

    /**
     * @psalm-param string[] $tags
     */
    private function setDefinitionTags(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 setDefinitionResetter(string $id, Closure $resetter): void
    {
        $this->resetters[$id] = $resetter;
    }

    /**
     * Add definition to storage.
     *
     * @see $definitions
     *
     * @param string $id ID to set definition for.
     * @param mixed|object $definition Definition to set.
     */
    private function addDefinitionToStorage(string $id, $definition): void
    {
        $this->definitions->set($id, $definition);

        if ($id === StateResetter::class) {
            $this->useResettersFromMeta = false;
        }
    }

    /**
     * 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 {
            /** @var mixed $object */
            $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
    {
        /** @var string $tag */
        $tag = substr($tagAlias, 4);
        $services = [];
        if (isset($this->tags[$tag])) {
            foreach ($this->tags[$tag] as $service) {
                /** @var mixed */
                $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 = [];
        /** @var mixed $provider */
        foreach ($providers as $provider) {
            $providerInstance = $this->buildProvider($provider);
            $extensions[] = $providerInstance->getExtensions();
            $this->addProviderDefinitions($providerInstance);
        }

        foreach ($extensions as $providerExtensions) {
            /** @var mixed $extension */
            foreach ($providerExtensions as $id => $extension) {
                if (!is_string($id)) {
                    throw new InvalidConfigException(
                        sprintf('Extension key must be a service ID as string, %s given.', $id)
                    );
                }

                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.");
                }

                if (!is_callable($extension)) {
                    throw new InvalidConfigException(
                        sprintf(
                            'Extension of service should be callable, %s given.',
                            $this->getVariableType($extension)
                        )
                    );
                }

                /** @var mixed $definition */
                $definition = $this->definitions->get($id);
                if (!$definition instanceof ExtensibleService) {
                    $definition = new ExtensibleService($definition);
                    $this->addDefinitionToStorage($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)
                )
            );
        }

        /** @psalm-var class-string|ServiceProviderInterface $provider */

        /**
         * @psalm-suppress MixedMethodCall Service provider defined as class string
         * should container public constructor, otherwise throws error.
         */
        $providerInstance = is_object($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_callable;
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 DefinitionStorage Storage of object definitions.
39		*/
40		private DefinitionStorage $definitions;
41		/**
42		* @var array Used to collect IDs of objects instantiated during build
43		* to detect circular references.
44		*/
45		private array $building = [];
46
47		/**
48		* @var bool $validate If definitions should be validated.
49		*/
50		private bool $validate;
51
52		private array $instances = [];
53
54		private CompositeContainer $delegates;
55
56		/**
57		* @var array Tagged service IDs. The structure is `['tagID' => ['service1', 'service2']]`.
58		* @psalm-var array<string, list<string>>
59		*/
60		private array $tags;
61
62		/**
63		* @var Closure[]
64		*/
65		private array $resetters = [];
66		private bool $useResettersFromMeta = true;
67
68		/**
69		* Container constructor.
70		*
71		* @param ContainerConfigInterface $config Container configuration.
72		*
73		* @throws InvalidConfigException
74		* @psalm-suppress PropertyNotSetInConstructor
75		*/
76	126	public function __construct(ContainerConfigInterface $config)
77		{
78	126	$this->definitions = new DefinitionStorage(
79		[
80	126	ContainerInterface::class => $this,
81		StateResetter::class => StateResetter::class,
82		],
83	126	$config->useStrictMode()
84		);
85	126	$this->validate = $config->shouldValidate();
86	126	$this->setTags($config->getTags());
87	123	$this->setMultiple($config->getDefinitions());
88	114	$this->addProviders($config->getProviders());
89	108	$this->setDelegates($config->getDelegates());
90	106	}
91
92		/**
93		* Returns a value indicating whether the container has the definition of the specified name.
94		*
95		* @param string $id Class name, interface name or alias name.
96		*
97		* @return bool Whether the container is able to provide instance of class specified.
98		*
99		* @see set()
100		*/
101	39	public function has($id): bool
102		{
103		/** @psalm-suppress DocblockTypeContradiction */
104	39	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...
105	1	return false;
106		}
107
108	38	if ($this->isTagAlias($id)) {
109	3	$tag = substr($id, 4);
110	3	return isset($this->tags[$tag]);
111		}
112
113		try {
114	35	return $this->definitions->has($id);
115	3	} catch (CircularReferenceException $e) {
116	3	return true;
117		}
118		}
119
120		/**
121		* Returns an instance by either interface name or alias.
122		*
123		* Same instance of the class will be returned each time this method is called.
124		*
125		* @param string $id The interface or an alias name that was previously registered.
126		*
127		* @throws CircularReferenceException
128		* @throws InvalidConfigException
129		* @throws NotFoundException
130		* @throws NotInstantiableException
131		*
132		* @return mixed\|object An instance of the requested interface.
133		*
134		* @psalm-template T
135		* @psalm-param string\|class-string<T> $id
136		* @psalm-return ($id is class-string ? T : mixed)
137		*/
138	94	public function get($id)
139		{
140		/** @psalm-suppress TypeDoesNotContainType */
141	94	if (!is_string($id)) {
		0 ignored issues – show introduced 2021-08-10 08:46 UTC by Report Bug Copy Issue Report The condition `is_string($id)` is always `true`. Loading history...
142	1	throw new InvalidArgumentException("Id must be a string, {$this->getVariableType($id)} given.");
143		}
144
145	93	if (!array_key_exists($id, $this->instances)) {
146		try {
147	93	$this->instances[$id] = $this->build($id);
148	18	} catch (NotFoundException $e) {
149	9	if (!$this->delegates->has($id)) {
150	7	throw $e;
151		}
152
153		/** @psalm-suppress MixedReturnStatement */
154	2	return $this->delegates->get($id);
155		}
156		}
157
158	84	if ($this->useResettersFromMeta && $id === StateResetter::class) {
159	6	$resetters = [];
160	6	foreach ($this->resetters as $serviceId => $callback) {
161	6	if (isset($this->instances[$serviceId])) {
162	6	$resetters[$serviceId] = $callback;
163		}
164		}
165	6	if ($this->delegates->has(StateResetter::class)) {
166	1	$resetters[] = $this->delegates->get(StateResetter::class);
167		}
168		/** @psalm-suppress MixedMethodCall Instance of `StateResetter` */
169	6	$this->instances[$id]->setResetters($resetters);
170		}
171
172		/** @psalm-suppress MixedReturnStatement */
173	84	return $this->instances[$id];
174		}
175
176		/**
177		* Sets a definition to the container. Definition may be defined multiple ways.
178		*
179		* @param string $id ID to set definition for.
180		* @param mixed $definition Definition to set.
181		*
182		* @throws InvalidConfigException
183		*
184		* @see DefinitionNormalizer::normalize()
185		*/
186	102	private function set(string $id, $definition): void
187		{
188		/** @var mixed $definition */
189	102	[$definition, $meta] = DefinitionParser::parse($definition);
190	102	if ($this->validate) {
191	102	$this->validateDefinition($definition, $id);
192	100	$this->validateMeta($meta);
193		}
194		/**
195		* @psalm-var array{reset?:Closure,tags?:string[]} $meta
196		*/
197
198	94	if (isset($meta[self::META_TAGS])) {
199	9	$this->setDefinitionTags($id, $meta[self::META_TAGS]);
200		}
201	94	if (isset($meta[self::META_RESET])) {
202	6	$this->setDefinitionResetter($id, $meta[self::META_RESET]);
203		}
204
205	94	unset($this->instances[$id]);
206	94	$this->addDefinitionToStorage($id, $definition);
207	94	}
208
209		/**
210		* Sets multiple definitions at once.
211		*
212		* @param array $config Definitions indexed by their IDs.
213		*
214		* @throws InvalidConfigException
215		*/
216	123	private function setMultiple(array $config): void
217		{
218		/** @var mixed $definition */
219	123	foreach ($config as $id => $definition) {
220	103	if ($this->validate && !is_string($id)) {
221	1	throw new InvalidConfigException(
222	1	sprintf(
223	1	'Key must be a string. %s given.',
224	1	$this->getVariableType($id)
225		)
226		);
227		}
228		/** @var string $id */
229
230	102	$this->set($id, $definition);
231		}
232	114	}
233
234		/**
235		* Set container delegates.
236		*
237		* Each delegate must is a callable in format "function (ContainerInterface $container): ContainerInterface".
238		* The container instance returned is used in case a service can not be found in primary container.
239		*
240		* @param array $delegates
241		*
242		* @throws InvalidConfigException
243		*/
244	108	private function setDelegates(array $delegates): void
245		{
246	108	$this->delegates = new CompositeContainer();
247	108	foreach ($delegates as $delegate) {
248	4	if (!$delegate instanceof Closure) {
249	1	throw new InvalidConfigException(
250	1	'Delegate must be callable in format "function (ContainerInterface $container): ContainerInterface".'
251		);
252		}
253
254		/** @var ContainerInterface */
255	3	$delegate = $delegate($this);
256
257	3	if (!$delegate instanceof ContainerInterface) {
258	1	throw new InvalidConfigException(
259	1	'Delegate callable must return an object that implements ContainerInterface.'
260		);
261		}
262
263	2	$this->delegates->attach($delegate);
264		}
265	106	$this->definitions->setDelegateContainer($this->delegates);
266	106	}
267
268		/**
269		* @param mixed $definition Definition to validate.
270		* @param string\|null $id ID of the definition to validate.
271		*
272		* @throws InvalidConfigException
273		*/
274	102	private function validateDefinition($definition, ?string $id = null): void
275		{
276	102	if (is_array($definition) && isset($definition[DefinitionParser::IS_PREPARED_ARRAY_DEFINITION_DATA])) {
277		/** @var mixed $class */
278	44	$class = $definition['class'];
279
280		/** @var mixed $constructorArguments */
281	44	$constructorArguments = $definition['__construct()'];
282
283		/**
284		* @var array $methodsAndProperties Is always array for prepared array definion data
285		* @see DefinitionParser::parse()
286		*/
287	44	$methodsAndProperties = $definition['methodsAndProperties'];
288
289	44	$definition = array_merge(
290	44	$class === null ? [] : [ArrayDefinition::CLASS_NAME => $class],
291	44	[ArrayDefinition::CONSTRUCTOR => $constructorArguments],
292		$methodsAndProperties,
293		);
294		}
295
296	102	if ($definition instanceof ExtensibleService) {
297	1	throw new InvalidConfigException(
298	1	'Invalid definition. ExtensibleService is only allowed in provider extensions.'
299		);
300		}
301
302	101	DefinitionValidator::validate($definition, $id);
303	100	}
304
305		/**
306		* @throws InvalidConfigException
307		*/
308	100	private function validateMeta(array $meta): void
309		{
310		/** @var mixed $value */
311	100	foreach ($meta as $key => $value) {
312	21	if (!in_array($key, self::ALLOWED_META, true)) {
313	3	throw new InvalidConfigException(
314	3	sprintf(
315	3	'Invalid definition: metadata "%s" is not allowed. Did you mean "%s()" or "$%s"?',
316		$key,
317		$key,
318		$key,
319		)
320		);
321		}
322
323	19	if ($key === self::META_TAGS) {
324	12	$this->validateDefinitionTags($value);
325		}
326
327	17	if ($key === self::META_RESET) {
328	7	$this->validateDefinitionReset($value);
329		}
330		}
331	94	}
332
333		/**
334		* @param mixed $tags
335		*
336		* @throws InvalidConfigException
337		*/
338	12	private function validateDefinitionTags($tags): void
339		{
340	12	if (!is_array($tags)) {
341	1	throw new InvalidConfigException(
342	1	sprintf(
343	1	'Invalid definition: tags should be array of strings, %s given.',
344	1	$this->getVariableType($tags)
345		)
346		);
347		}
348
349	11	foreach ($tags as $tag) {
350	11	if (!is_string($tag)) {
351	1	throw new InvalidConfigException('Invalid tag. Expected a string, got ' . var_export($tag, true) . '.');
352		}
353		}
354	10	}
355
356		/**
357		* @param mixed $reset
358		*
359		* @throws InvalidConfigException
360		*/
361	7	public function validateDefinitionReset($reset): void
362		{
363	7	if (!$reset instanceof Closure) {
364	1	throw new InvalidConfigException(
365	1	sprintf(
366	1	'Invalid definition: "reset" should be closure, %s given.',
367	1	$this->getVariableType($reset)
368		)
369		);
370		}
371	6	}
372
373		/**
374		* @throws InvalidConfigException
375		*/
376	126	private function setTags(array $tags): void
377		{
378	126	if ($this->validate) {
379	126	foreach ($tags as $tag => $services) {
380	5	if (!is_string($tag)) {
381	1	throw new InvalidConfigException(
382	1	sprintf(
383	1	'Invalid tags configuration: tag should be string, %s given.',
384		$tag
385		)
386		);
387		}
388	4	if (!is_array($services)) {
389	1	throw new InvalidConfigException(
390	1	sprintf(
391	1	'Invalid tags configuration: tag should contain array of service IDs, %s given.',
392	1	$this->getVariableType($services)
393		)
394		);
395		}
396	3	foreach ($services as $service) {
397	3	if (!is_string($service)) {
398	1	throw new InvalidConfigException(
399	1	sprintf(
400	1	'Invalid tags configuration: service should be defined as class string, %s given.',
401	1	$this->getVariableType($service)
402		)
403		);
404		}
405		}
406		}
407		}
408		/** @psalm-var array<string, list<string>> $tags */
409
410	123	$this->tags = $tags;
411	123	}
412
413		/**
414		* @psalm-param string[] $tags
415		*/
416	9	private function setDefinitionTags(string $id, array $tags): void
417		{
418	9	foreach ($tags as $tag) {
419	9	if (!isset($this->tags[$tag]) \|\| !in_array($id, $this->tags[$tag], true)) {
420	9	$this->tags[$tag][] = $id;
421		}
422		}
423	9	}
424
425	6	private function setDefinitionResetter(string $id, Closure $resetter): void
426		{
427	6	$this->resetters[$id] = $resetter;
428	6	}
429
430		/**
431		* Add definition to storage.
432		*
433		* @see $definitions
434		*
435		* @param string $id ID to set definition for.
436		* @param mixed\|object $definition Definition to set.
437		*/
438	94	private function addDefinitionToStorage(string $id, $definition): void
439		{
440	94	$this->definitions->set($id, $definition);
441
442	94	if ($id === StateResetter::class) {
443	4	$this->useResettersFromMeta = false;
444		}
445	94	}
446
447		/**
448		* Creates new instance by either interface name or alias.
449		*
450		* @param string $id The interface or an alias name that was previously registered.
451		*
452		* @throws CircularReferenceException
453		* @throws InvalidConfigException
454		* @throws NotFoundException
455		*
456		* @return mixed\|object New built instance of the specified class.
457		*
458		* @internal
459		*/
460	93	private function build(string $id)
461		{
462	93	if ($this->isTagAlias($id)) {
463	10	return $this->getTaggedServices($id);
464		}
465
466	92	if (isset($this->building[$id])) {
467	83	if ($id === ContainerInterface::class) {
468	83	return $this;
469		}
470	4	throw new CircularReferenceException(sprintf(
471	4	'Circular reference to "%s" detected while building: %s.',
472		$id,
473	4	implode(', ', array_keys($this->building))
474		));
475		}
476
477	92	$this->building[$id] = 1;
478		try {
479		/** @var mixed $object */
480	92	$object = $this->buildInternal($id);
481	83	} finally {
482	92	unset($this->building[$id]);
483		}
484
485	83	return $object;
486		}
487
488	104	private function isTagAlias(string $id): bool
489		{
490	104	return strncmp($id, 'tag@', 4) === 0;
491		}
492
493	10	private function getTaggedServices(string $tagAlias): array
494		{
495		/** @var string $tag */
496	10	$tag = substr($tagAlias, 4);
497	10	$services = [];
498	10	if (isset($this->tags[$tag])) {
499	9	foreach ($this->tags[$tag] as $service) {
500		/** @var mixed */
501	9	$services[] = $this->get($service);
502		}
503		}
504
505	10	return $services;
506		}
507
508		/**
509		* @param string $id
510		*
511		* @throws InvalidConfigException
512		* @throws NotFoundException
513		*
514		* @return mixed\|object
515		*/
516	92	private function buildInternal(string $id)
517		{
518	92	if ($this->definitions->has($id)) {
519	83	$definition = DefinitionNormalizer::normalize($this->definitions->get($id), $id);
520
521	83	return $definition->resolve($this->get(ContainerInterface::class));
522		}
523
524	9	throw new NotFoundException($id, $this->definitions->getBuildStack());
525		}
526
527	114	private function addProviders(array $providers): void
528		{
529	114	$extensions = [];
530		/** @var mixed $provider */
531	114	foreach ($providers as $provider) {
532	14	$providerInstance = $this->buildProvider($provider);
533	12	$extensions[] = $providerInstance->getExtensions();
534	12	$this->addProviderDefinitions($providerInstance);
535		}
536
537	112	foreach ($extensions as $providerExtensions) {
538		/** @var mixed $extension */
539	12	foreach ($providerExtensions as $id => $extension) {
540	9	if (!is_string($id)) {
541	1	throw new InvalidConfigException(
542	1	sprintf('Extension key must be a service ID as string, %s given.', $id)
543		);
544		}
545
546	8	if ($id === ContainerInterface::class) {
547	1	throw new InvalidConfigException('ContainerInterface extensions are not allowed.');
548		}
549
550	7	if (!$this->definitions->has($id)) {
551	1	throw new InvalidConfigException("Extended service \"$id\" doesn't exist.");
552		}
553
554	7	if (!is_callable($extension)) {
555	1	throw new InvalidConfigException(
556	1	sprintf(
557	1	'Extension of service should be callable, %s given.',
558	1	$this->getVariableType($extension)
559		)
560		);
561		}
562
563		/** @var mixed $definition */
564	6	$definition = $this->definitions->get($id);
565	6	if (!$definition instanceof ExtensibleService) {
566	6	$definition = new ExtensibleService($definition);
567	6	$this->addDefinitionToStorage($id, $definition);
568		}
569
570	6	$definition->addExtension($extension);
571		}
572		}
573	108	}
574
575		/**
576		* Adds service provider definitions to the container.
577		*
578		* @param ServiceProviderInterface $provider Provider to get definitions from.
579		*
580		* @throws InvalidConfigException
581		* @throws NotInstantiableException
582		*/
583	12	private function addProviderDefinitions(ServiceProviderInterface $provider): void
584		{
585	12	$definitions = $provider->getDefinitions();
586	12	$this->setMultiple($definitions);
587	12	}
588
589		/**
590		* Builds service provider by definition.
591		*
592		* @param mixed $provider Class name or instance of provider.
593		*
594		* @throws InvalidConfigException If provider argument is not valid.
595		*
596		* @return ServiceProviderInterface Instance of service provider.
597		*
598		* @psalm-suppress MoreSpecificReturnType
599		*/
600	14	private function buildProvider($provider): ServiceProviderInterface
601		{
602	14	if ($this->validate && !(is_string($provider) \|\| $provider instanceof ServiceProviderInterface)) {
603	1	throw new InvalidConfigException(
604	1	sprintf(
605	1	'Service provider should be a class name or an instance of %s. %s given.',
606	1	ServiceProviderInterface::class,
607	1	$this->getVariableType($provider)
608		)
609		);
610		}
611
612		/** @psalm-var class-string\|ServiceProviderInterface $provider */
613
614		/**
615		* @psalm-suppress MixedMethodCall Service provider defined as class string
616		* should container public constructor, otherwise throws error.
617		*/
618	13	$providerInstance = is_object($provider) ? $provider : new $provider();
619	13	if (!$providerInstance instanceof ServiceProviderInterface) {
620	1	throw new InvalidConfigException(
621	1	sprintf(
622	1	'Service provider should be an instance of %s. %s given.',
623	1	ServiceProviderInterface::class,
624	1	$this->getVariableType($providerInstance)
625		)
626		);
627		}
628
629		/**
630		* @psalm-suppress LessSpecificReturnStatement
631		*/
632	12	return $providerInstance;
633		}
634
635		/**
636		* @param mixed $variable
637		*/
638	9	private function getVariableType($variable): string
639		{
640	9	return is_object($variable) ? get_class($variable) : gettype($variable);
641		}
642		}
643

yiisoft / di

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Container::setDefinitionResetter() A

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