larry babby and threejs for glsl

webGl/my-threejs-test/node_modules/@parcel/events/lib/Disposable.js

@@ -0,0 +1,47 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+function _assert() {
+  const data = _interopRequireDefault(require("assert"));
+  _assert = function () {
+    return data;
+  };
+  return data;
+}
+var _errors = require("./errors");
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+/*
+ * A general-purpose disposable class. It can normalize disposable-like values
+ * (such as single functions or IDisposables), as well as hold multiple
+ * disposable-like values to be disposed of at once.
+ */
+class Disposable {
+  disposed = false;
+  #disposables /*: ?Set<DisposableLike> */;
+
+  constructor(...disposables) {
+    this.#disposables = new Set(disposables);
+  }
+  add(...disposables) {
+    if (this.disposed) {
+      throw new _errors.AlreadyDisposedError('Cannot add new disposables after disposable has been disposed');
+    }
+    (0, _assert().default)(this.#disposables != null);
+    for (let disposable of disposables) {
+      this.#disposables.add(disposable);
+    }
+  }
+  async dispose() {
+    if (this.disposed) {
+      return;
+    }
+    this.disposed = true;
+    (0, _assert().default)(this.#disposables != null);
+    await Promise.all([...this.#disposables].map(disposable => typeof disposable === 'function' ? disposable() : disposable.dispose()));
+    this.#disposables = null;
+  }
+}
+exports.default = Disposable;