Document/Calculator/DocumentCalculator.php
protected function calculateGoodLine(Model\DocumentLineInterface $line): ?Amount
    {
        if ($line->getType() !== Model\DocumentLineTypes::TYPE_GOOD) {
            throw new LogicException(sprintf(
                "Expected document line with type '%s'.",
                Model\DocumentLineTypes::TYPE_GOOD
            ));
        }

        if (null === $item = $line->getSaleItem()) {
            throw new LogicException("Document can't be recalculated.");
        }

        $result = $this->calculator->calculateSaleItem($item, $line->getQuantity());

        $this->syncLineWithResult($line, $result);

        if ($item->isPrivate()) {
            return null;
        }

        return $result;
    }
protected function calculateGoodLine(Model\DocumentLineInterface $line): ?Amount
    {
        if ($line->getType() !== Model\DocumentLineTypes::TYPE_GOOD) {
            throw new LogicException(sprintf(
                "Expected document line with type '%s'.",
                Model\DocumentLineTypes::TYPE_GOOD
            ));
        }

        if (null === $item = $line->getSaleItem()) {
            throw new LogicException("Document can't be recalculated.");
        }

        $result = $this->calculator->calculateSaleItem($item, $line->getQuantity());

        $this->syncLineWithResult($line, $result);

        if ($item->isPrivate()) {
            return null;
        }

        return $result;
    }
protected function calculateGoodLine ( Model \ DocumentLineInterface $ line ) : ? Amount { if ( $ line -> getType ( ) !== Model \ DocumentLineTypes :: TYPE_GOOD ) { throw new LogicException ( sprintf ( "Expected document line with type '%s'." , Model \ DocumentLineTypes :: TYPE_GOOD ) ) ; } if ( null === $ item = $ line -> getSaleItem ( ) ) { throw new LogicException ( "Document can't be recalculated." ) ; } $ result = $ this -> calculator -> calculateSaleItem ( $ item , $ line -> getQuantity ( ) ) ; $ this -> syncLineWithResult ( $ line , $ result ) ; if ( $ item -> isPrivate ( ) ) { return null ; } return $ result ; }
Calculate the good line.

@param Model\DocumentLineInterface $line

@return Amount

@throws LogicException
Calculate the good line .