refactor: v2 watcher

[ErKeLost]

refactor watcher

old

this.watcher.watcher.on('')

new

this.watcher.on('')

The first version solves the problem by using the proxy watcher to return the proxy in the constructor

export default class Watcher extends EventEmitter implements IWatcher {
  private watchedFiles = new Set<string>();
  public resolvedWatchOptions: WatchOptions;
  private _watcher: FSWatcher;
  public extraWatchedFiles: string[] = [];

  constructor(public config: ResolvedUserConfig) {
    super();
    this.resolveChokidarOptions();

    const proxy = new Proxy(this, {
      get(target: Watcher, prop: string | symbol) {
        if (prop in target) {
          return target[prop as keyof Watcher];
        }
        if (target._watcher && prop in target._watcher) {
          const value = target._watcher[prop as keyof FSWatcher];
          return typeof value === 'function'
            ? value.bind(target._watcher)
            : value;
        }
        return undefined;
      }
    });

    return proxy as IWatcher;
  }

Existing problem: The type cannot be recognized, even though the emitter custom event is used, it still cannot be used

So the second goal overrides all FsWatcher methods

Maybe have a better way?

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