SingleType.php

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<?php

namespace ILIAS\BackgroundTasks\Types;

class SingleType implements Type, Ancestors
{
    protected \ReflectionClass $type;

    public function __construct($fullyQualifiedClassName)
    {
        $this->type = new \ReflectionClass($fullyQualifiedClassName);
    }

    public function __toString(): string
    {
        return $this->type->getName();
    }

    public function isExtensionOf(Type $type): bool
    {
        if (!$type instanceof SingleType) {
            return false;
        }
        if ($this->type->isSubclassOf($type->__toString())) {
            return true;
        }
        return $this->__toString() === $type->__toString();
    }

    public function getAncestors(): array
    {
        $class = $this->type;
        $ancestors = [new SingleType($class->getName())];

        while ($class = $class->getParentClass()) {
            $ancestors[] = new SingleType($class->getName());
        }

        return array_reverse($ancestors);
    }

    public function equals(Type $otherType): bool
    {
        if (!$otherType instanceof SingleType) {
            return false;
        }

        return $this->__toString() === $otherType->__toString();
    }
}