Init. Map does not function and only working on backend at the moment.

node_modules/socket.io/dist/parent-namespace.js

@@ -0,0 +1,92 @@
+"use strict";
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ParentNamespace = void 0;
+const namespace_1 = require("./namespace");
+const socket_io_adapter_1 = require("socket.io-adapter");
+const debug_1 = __importDefault(require("debug"));
+const debug = (0, debug_1.default)("socket.io:parent-namespace");
+/**
+ * A parent namespace is a special {@link Namespace} that holds a list of child namespaces which were created either
+ * with a regular expression or with a function.
+ *
+ * @example
+ * const parentNamespace = io.of(/\/dynamic-\d+/);
+ *
+ * parentNamespace.on("connection", (socket) => {
+ *   const childNamespace = socket.nsp;
+ * }
+ *
+ * // will reach all the clients that are in one of the child namespaces, like "/dynamic-101"
+ * parentNamespace.emit("hello", "world");
+ *
+ */
+class ParentNamespace extends namespace_1.Namespace {
+    constructor(server) {
+        super(server, "/_" + ParentNamespace.count++);
+        this.children = new Set();
+    }
+    /**
+     * @private
+     */
+    _initAdapter() {
+        this.adapter = new ParentBroadcastAdapter(this, this.children);
+    }
+    emit(ev, ...args) {
+        this.children.forEach((nsp) => {
+            nsp.emit(ev, ...args);
+        });
+        return true;
+    }
+    createChild(name) {
+        debug("creating child namespace %s", name);
+        const namespace = new namespace_1.Namespace(this.server, name);
+        namespace._fns = this._fns.slice(0);
+        this.listeners("connect").forEach((listener) => namespace.on("connect", listener));
+        this.listeners("connection").forEach((listener) => namespace.on("connection", listener));
+        this.children.add(namespace);
+        if (this.server._opts.cleanupEmptyChildNamespaces) {
+            const remove = namespace._remove;
+            namespace._remove = (socket) => {
+                remove.call(namespace, socket);
+                if (namespace.sockets.size === 0) {
+                    debug("closing child namespace %s", name);
+                    namespace.adapter.close();
+                    this.server._nsps.delete(namespace.name);
+                    this.children.delete(namespace);
+                }
+            };
+        }
+        this.server._nsps.set(name, namespace);
+        // @ts-ignore
+        this.server.sockets.emitReserved("new_namespace", namespace);
+        return namespace;
+    }
+    fetchSockets() {
+        // note: we could make the fetchSockets() method work for dynamic namespaces created with a regex (by sending the
+        // regex to the other Socket.IO servers, and returning the sockets of each matching namespace for example), but
+        // the behavior for namespaces created with a function is less clear
+        // note²: we cannot loop over each children namespace, because with multiple Socket.IO servers, a given namespace
+        // may exist on one node but not exist on another (since it is created upon client connection)
+        throw new Error("fetchSockets() is not supported on parent namespaces");
+    }
+}
+exports.ParentNamespace = ParentNamespace;
+ParentNamespace.count = 0;
+/**
+ * A dummy adapter that only supports broadcasting to child (concrete) namespaces.
+ * @private file
+ */
+class ParentBroadcastAdapter extends socket_io_adapter_1.Adapter {
+    constructor(parentNsp, children) {
+        super(parentNsp);
+        this.children = children;
+    }
+    broadcast(packet, opts) {
+        this.children.forEach((nsp) => {
+            nsp.adapter.broadcast(packet, opts);
+        });
+    }
+}