Flutter on VS Code 问题：StreamController.Sink.add() 突然需要参数 PUSH

Question

各位下午好，我突然遇到 VS Code 的问题：在几个 Flutter 应用中 Streamcontroller.sink.add(); 突然需要参数 "push" （之前没有）。

不添加 push 参数显然是 return 错误

2 required argument(s) expected, but 1 found.dart(not_enough_required_arguments)

有谁知道可能发生了什么？预先感谢您的帮助弗朗切斯科

编辑：通过 f12 定义实际上显示了参数 push

    part of dart.core;

/**
 * A generic destination for data.
 *
 * Multiple data values can be put into a sink, and when no more data is
 * available, the sink should be closed.
 *
 * This is a generic interface that other data receivers can implement.
 */
abstract class Sink<T> {
  /**
   * Adds [data] to the sink.
   *
   * Must not be called after a call to [close].
   */
  void add(T data, Future push);

  /**
   * Closes the sink.
   *
   * The [add] method must not be called after this method.
   *
   * Calling this method more than once is allowed, but does nothing.
   */
  void close();
}

但正如 pskink 提醒的那样，文档没有显示此要求；我不知道这会如何改变，此时的问题是：

如何恢复正常？

Answer 1

长话短说；博士看起来是错误的代码，相反，飞镖代码已损坏；

我遵循了 Gunter 提供的 instruction 一切恢复正常。

再次感谢冈特

Flutter on VS Code 问题：StreamController.Sink.add() 突然需要参数 PUSH

Flutter on VS Code issue: StreamController.Sink.add() suddenly require argument PUSH

stream

dart

visual-studio-code

flutter

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