DivineNii\Invoker\ArgumentResolver\ClassValueResolver

Complexity

Total Complexity

10

Size/Duplication

Total Lines	45
Duplicated Lines	0 %

Test Coverage

Coverage

94.12%

Importance

Changes	2
Bugs	0	Features	0

2 Methods

Rating	Name	Duplication	Size	Complexity
B	resolve()	0	32	9
A	__construct()	0	3	1

<?php

declare(strict_types=1);

/*
 * This file is part of PHP Invoker.
 *
 * PHP version 7.1 and above required
 *
 * @author    Divine Niiquaye Ibok <divineibok@gmail.com>
 * @copyright 2019 Biurad Group (https://biurad.com/)
 * @license   https://opensource.org/licenses/BSD-3-Clause License
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace DivineNii\Invoker\ArgumentResolver;

use ArgumentCountError;
use DivineNii\Invoker\Interfaces\ArgumentValueResolverInterface;
use Psr\Container\ContainerInterface;
use Psr\Container\NotFoundExceptionInterface;
use ReflectionClass;
use ReflectionParameter;

/**
 * Inject or create a class instance from a DI container or return existing instance
 * from $providedParameters using the type-hints.
 *
 * @author Divine Niiquaye Ibok <divineibok@gmail.com>
 */
class ClassValueResolver implements ArgumentValueResolverInterface
{
    /** @var ContainerInterface|null */
    private $container;

    public function __construct(?ContainerInterface $container = null)
    {
        $this->container = $container;
    }

    /**
     * {@inheritdoc}
     */
    public function resolve(ReflectionParameter $parameter, array $providedParameters)
    {
        $parameterType = $parameter->getType();

        if (!$parameterType instanceof \ReflectionNamedType || $parameterType->isBuiltin()) {
            // No type, Primitive types and Union types are not supported
            return;
        }

        // Inject entries from a DI container using the type-hints.
        if (null !== $this->container) {
            try {
                return $this->container->get($parameterType->getName());
            } catch (NotFoundExceptionInterface $e) {
                // We need no exception thrown here
            }
        }

        // If an instance is detected
        foreach ($providedParameters as $key => $value) {
            if (\is_a($value, $parameterType->getName(), true)) {
                return $providedParameters[$key];
            }
        }

        try {
            $reflectionClass = new ReflectionClass($parameterType->getName());

            if ($reflectionClass->isInstantiable()) {
                return $reflectionClass->newInstance();
            }
        } catch (ArgumentCountError $e) {
            // Throw no exception ...
        }
    }
}