class Line

final class Line {
    public const ADDED = 1;
    public const REMOVED = 2;
    public const UNCHANGED = 3;
    private int $type;
    private string $content;
    public function __construct(int $type = self::UNCHANGED, string $content = '') {
        $this->type = $type;
        $this->content = $content;
    }
    public function content() : string {
        return $this->content;
    }
    public function type() : int {
        return $this->type;
    }
    public function isAdded() : bool {
        return $this->type === self::ADDED;
    }
    public function isRemoved() : bool {
        return $this->type === self::REMOVED;
    }
    public function isUnchanged() : bool {
        return $this->type === self::UNCHANGED;
    }
    
    /**
     * @deprecated
     */
    public function getContent() : string {
        return $this->content;
    }
    
    /**
     * @deprecated
     */
    public function getType() : int {
        return $this->type;
    }

}