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<?php |
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/** |
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* webtrees: online genealogy |
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* Copyright (C) 2023 webtrees development team |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <https://www.gnu.org/licenses/>. |
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*/ |
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declare(strict_types=1); |
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namespace Fisharebest\Webtrees; |
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use Fisharebest\Webtrees\Contracts\ContainerInterface; |
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use Fisharebest\Webtrees\Exceptions\NotFoundInContainerException; |
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use ReflectionClass; |
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use ReflectionNamedType; |
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use ReflectionParameter; |
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use function array_key_exists; |
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use function array_map; |
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/** |
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* @template T of object |
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* |
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* A PSR-11 compatible container and dependency injector. |
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*/ |
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class Container implements ContainerInterface |
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{ |
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/** @var array<class-string<T>,T> */ |
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private array $container = []; |
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/** |
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* @param class-string<T> $id |
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* |
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* @return bool |
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*/ |
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public function has(string $id): bool |
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{ |
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return array_key_exists($id, $this->container); |
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} |
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/** |
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* @param class-string<T> $id |
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* |
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* @return T |
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*/ |
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public function get(string $id): object |
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{ |
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return $this->container[$id] ??= $this->make($id); |
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} |
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/** |
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* @param class-string<T> $id |
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* @param T $object |
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* |
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* @return $this |
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*/ |
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public function set(string $id, object $object): static |
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{ |
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$this->container[$id] = $object; |
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return $this; |
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} |
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/** |
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* @param class-string<T> $id |
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* |
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* @return T |
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*/ |
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private function make(string $id): object |
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{ |
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$reflector = new ReflectionClass($id); |
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$constructor = $reflector->getConstructor(); |
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if ($constructor === null) { |
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return new $id(); |
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} |
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$parameters = array_map(self::makeParameter(...), $constructor->getParameters()); |
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return new $id(...$parameters); |
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} |
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private function makeParameter(ReflectionParameter $reflection_parameter): mixed |
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{ |
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if ($reflection_parameter->isOptional()) { |
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return $reflection_parameter->getDefaultValue(); |
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} |
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$type = $reflection_parameter->getType(); |
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if ($type instanceof ReflectionNamedType) { |
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return $this->get($type->getName()); |
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} |
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throw new NotFoundInContainerException('Cannot make ' . $reflection_parameter->getName()); |
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} |
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} |
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This check looks for private methods that have been defined, but are not used inside the class.