public ICartState PayForCart(ICartState currentState, decimal amountToPay)
{
var visitor = new PayForCartVisitor() { amountToPay = amountToPay };
return currentState.Accept(visitor);
}
public ICartState AddProduct(ICartState currentState, Product product)
{
var visitor = new AddProductVisitor() { productToAdd = product };
return currentState.Accept(visitor);
}
