astro/dist/content/watcher.js

Astro is a modern site builder with web best practices, performance, and DX front-of-mind.

function createWatcherWrapper(watcher) {
  const listeners = /* @__PURE__ */ new Map();
  const handler = {
    get(target, prop, receiver) {
      if (prop === "on") {
        return function(event, callback) {
          if (!listeners.has(event)) {
            listeners.set(event, /* @__PURE__ */ new Set());
          }
          listeners.get(event).add(callback);
          return Reflect.get(target, prop, receiver).call(target, event, callback);
        };
      }
      if (prop === "off") {
        return function(event, callback) {
          listeners.get(event)?.delete(callback);
          return Reflect.get(target, prop, receiver).call(target, event, callback);
        };
      }
      if (prop === "removeAllTrackedListeners") {
        return function() {
          for (const [event, callbacks] of listeners.entries()) {
            for (const callback of callbacks) {
              target.off(event, callback);
            }
            callbacks.clear();
          }
          listeners.clear();
        };
      }
      return Reflect.get(target, prop, receiver);
    }
  };
  return new Proxy(watcher, handler);
}
export {
  createWatcherWrapper
};