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[EDIT] FILE: InstanceInjector.php

<?php

declare(strict_types=1);

namespace DI\Definition\Resolver;

use DI\Definition\Definition;
use DI\Definition\InstanceDefinition;
use DI\DependencyException;
use Psr\Container\NotFoundExceptionInterface;

/**
 * Injects dependencies on an existing instance.
 *
 * @template-implements DefinitionResolver<InstanceDefinition>
 *
 * @since 5.0
 * @author Matthieu Napoli <matthieu@mnapoli.fr>
 */
class InstanceInjector extends ObjectCreator implements DefinitionResolver
{
    /**
     * Injects dependencies on an existing instance.
     *
     * @param InstanceDefinition $definition
     * @psalm-suppress ImplementedParamTypeMismatch
     */
    public function resolve(Definition $definition, array $parameters = []) : ?object
    {
        /** @psalm-suppress InvalidCatch */
        try {
            $this->injectMethodsAndProperties($definition->getInstance(), $definition->getObjectDefinition());
        } catch (NotFoundExceptionInterface $e) {
            $message = sprintf(
                'Error while injecting dependencies into %s: %s',
                get_class($definition->getInstance()),
                $e->getMessage()
            );

throw new DependencyException($message, 0, $e);
        }

return $definition;
    }

public function isResolvable(Definition $definition, array $parameters = []) : bool
    {
        return true;
    }
}

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