Cart/Provider/AbstractCartProvider.php
public function createCart()
    {
        if ($this->hasCart()) {
            return $this->cart;
        }

        $this->clearCart();

        $this->setCart($this->cartRepository->createNew());

        // Sets the customer if available
        if ($this->customerProvider->hasCustomer()) {
            $this->cart->setCustomer($this->customerProvider->getCustomer());
        }

        $this->updateCustomerGroupAndCurrency();

        $this->cartOperator->initialize($this->cart);

        return $this->cart;
    }
public function createCart()
    {
        if ($this->hasCart()) {
            return $this->cart;
        }

        $this->clearCart();

        $this->setCart($this->cartRepository->createNew());

        // Sets the customer if available
        if ($this->customerProvider->hasCustomer()) {
            $this->cart->setCustomer($this->customerProvider->getCustomer());
        }

        $this->updateCustomerGroupAndCurrency();

        $this->cartOperator->initialize($this->cart);

        return $this->cart;
    }
{@inheritdoc}