Question

是否有任何编译器或运行时支持或计划支持隐式异步编程。

例如

public List<Product> findProductByIdWithSOsAndPOs(int id){

   //The next 3 tasks can be done in asynchronously

   //task 1.a may take a while
   Product product = productRepo.findById(id);

   //task 1.b may take a while
   List<SalesOrder> salesOrders = salesOrderRepository.findAllByProductId(id);

   //task 1.c may take a while
   List<PurchaseOrder> purchaseOrders = purchaseOrderRepository.findAllByProductId(id);

   //the runtime is smart enough to know that this task depends
   //on the previous 3 (1.a, 1.b and 1.c) and won't perform this
   //until they are complete without any special syntax (await, 
   //wrapping in future.map, callbacks, etc.)
   //task 2
   Product productWithSOsAndPOs = new Product(product.id, product.name, salesOrders, purchaseOrders);

   //the runtime is also smart enough until all the tasks are complete
   //task 3
   return productWithSOsAndPOs;
}

Answer 1

在.NET中，Tasks.Parallel库使事情变得非常自然。总是有一定程度的语法，但这只是领土。并行编程可能很棘手，编译器无法始终准确地告诉您正在做什么，尤其是涉及多个线程时。在您的数据层上使用Entity Framework可以让事情变得简单，因为异步调用是为您生成的。

是否有支持隐式异步编程的语言，编译器或运行时

1 个答案: