Zalas\PHPUnit\Doubles\Injector\PropertyAccessInjector

Complexity

Total Complexity

9

Size/Duplication

Total Lines	45
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes	1
Bugs	0	Features	0

4 Methods

Rating	Name	Duplication	Size	Complexity
A	findParentScope()	0	13	4
A	findScope()	0	7	2
A	inject()	0	3	1
A	createInjector()	0	9	2

<?php
declare(strict_types=1);

namespace Zalas\PHPUnit\Doubles\Injector;

final class PropertyAccessInjector implements Injector
{
    public function inject(/*object */$target, string $property, /*object */$object): void
    {
        $this->createInjector($target, $property)($object);
    }

    private function createInjector(/*object */$target, string $property): \Closure
    {
        $injector = function (/*object */$object) use ($property): void {
            if (null === $this->$property) {
                $this->$property = $object;
            }
        };

        return $injector->bindTo($target, $this->findScope($target, $property));
    }

    /**
     * @param object $target
     *
     * @return object|string
     */
    private function findScope(/*object */$target, string $property)
    {
        if (\property_exists($target, $property)) {
            return $target;
        }

        return $this->findParentScope($target, $property);
    }

    private function findParentScope(/*object */$target, string $property): string
    {
        $class = \get_parent_class($target);

        while (!\property_exists($class, $property) && $parent = \get_parent_class($class)) {
            $class = $parent;
        }

        if (!\property_exists($class, $property)) {
            throw new \LogicException(\sprintf('The property "%s::%s" does not exist.', \get_class($target), $property));
        }

        return $class;
    }
}