class Chunk

final class Chunk implements IteratorAggregate {
    private int $start;
    private int $startRange;
    private int $end;
    private int $endRange;
    private array $lines;
    public function __construct(int $start = 0, int $startRange = 1, int $end = 0, int $endRange = 1, array $lines = []) {
        $this->start = $start;
        $this->startRange = $startRange;
        $this->end = $end;
        $this->endRange = $endRange;
        $this->lines = $lines;
    }
    public function start() : int {
        return $this->start;
    }
    public function startRange() : int {
        return $this->startRange;
    }
    public function end() : int {
        return $this->end;
    }
    public function endRange() : int {
        return $this->endRange;
    }
    
    /**
     * @psalm-return list<Line>
     */
    public function lines() : array {
        return $this->lines;
    }
    
    /**
     * @psalm-param list<Line> $lines
     */
    public function setLines(array $lines) : void {
        foreach ($lines as $line) {
            if (!$line instanceof Line) {
                throw new InvalidArgumentException();
            }
        }
        $this->lines = $lines;
    }
    
    /**
     * @deprecated Use start() instead
     */
    public function getStart() : int {
        return $this->start;
    }
    
    /**
     * @deprecated Use startRange() instead
     */
    public function getStartRange() : int {
        return $this->startRange;
    }
    
    /**
     * @deprecated Use end() instead
     */
    public function getEnd() : int {
        return $this->end;
    }
    
    /**
     * @deprecated Use endRange() instead
     */
    public function getEndRange() : int {
        return $this->endRange;
    }
    
    /**
     * @psalm-return list<Line>
     *
     * @deprecated Use lines() instead
     */
    public function getLines() : array {
        return $this->lines;
    }
    public function getIterator() : Traversable {
        return new ArrayIterator($this->lines);
    }

}