Render.php

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<?php
namespace Magento\Framework\Pricing;

use Magento\Framework\Pricing\Amount\AmountInterface;
use Magento\Framework\Pricing\Price\PriceInterface;
use Magento\Framework\Pricing\Render\Layout;
use Magento\Framework\View\Element\AbstractBlock;
use Magento\Framework\View\Element\Template;

class Render extends AbstractBlock
{
    const ZONE_ITEM_VIEW = 'item_view';
    const ZONE_ITEM_LIST = 'item_list';
    const ZONE_ITEM_OPTION = 'item_option';
    const ZONE_SALES     = 'sales';
    const ZONE_EMAIL     = 'email';
    const ZONE_CART      = 'cart';
    const ZONE_DEFAULT   = null;
    protected $defaultTypeRender = 'default';

    protected $priceLayout;

    public function __construct(
        Template\Context $context,
        Layout $priceLayout,
        array $data = []
    ) {
        $this->priceLayout = $priceLayout;
        parent::__construct($context, $data);
    }

    protected function _prepareLayout()
    {
        $this->priceLayout->addHandle($this->getPriceRenderHandle());
        $this->priceLayout->loadLayout();
        return parent::_prepareLayout();
    }

    public function render($priceCode, SaleableInterface $saleableItem, array $arguments = [])
    {
        $useArguments = array_replace($this->_data, $arguments);

        $rendererPool = $this->priceLayout->getBlock('render.product.prices');
        if (!$rendererPool) {
            throw new \RuntimeException('Wrong Price Rendering layout configuration. Factory block is missed');
        }

        // obtain concrete Price Render
        $priceRender = $rendererPool->createPriceRender($priceCode, $saleableItem, $useArguments);
        return $priceRender->toHtml();
    }

    public function renderAmount(
        AmountInterface $amount,
        PriceInterface $price,
        SaleableInterface $saleableItem = null,
        array $arguments = []
    ) {
        $useArguments = array_replace($this->_data, $arguments);

        $rendererPool = $this->priceLayout->getBlock('render.product.prices');
        if (!$rendererPool) {
            throw new \RuntimeException('Wrong Price Rendering layout configuration. Factory block is missed');
        }

        // obtain concrete Amount Render
        $amountRender = $rendererPool->createAmountRender($amount, $saleableItem, $price, $useArguments);
        return $amountRender->toHtml();
    }
}