feat: valid adapters env

Author: pi0

src/adapters/bun.ts

@@ -26,6 +26,13 @@ type ContextData = {
 
 // https://bun.sh/docs/api/websockets
 const bunAdapter: Adapter<BunAdapter, BunOptions> = (options = {}) => {
+  if (typeof Bun === "undefined") {
+    // eslint-disable-next-line unicorn/prefer-type-error
+    throw new Error(
+      "[crossws] Using Bun adapter in an incompatible environment. (https://srvx.h3.dev/guide/bundler)",
+    );
+  }
+
   const hooks = new AdapterHookable(options);
   const peers = new Set<BunPeer>();
   return {

src/adapters/deno.ts

@@ -25,6 +25,13 @@ type ServeHandlerInfo = {
 // https://deno.land/api?s=Deno.upgradeWebSocket
 // https://examples.deno.land/http-server-websocket
 const denoAdapter: Adapter<DenoAdapter, DenoOptions> = (options = {}) => {
+  if (typeof Deno === "undefined") {
+    // eslint-disable-next-line unicorn/prefer-type-error
+    throw new Error(
+      "[crossws] Using Deno adapter in an incompatible environment (https://srvx.h3.dev/guide/bundler).",
+    );
+  }
+
   const hooks = new AdapterHookable(options);
   const peers = new Set<DenoPeer>();
   return {

src/adapters/node.ts

@@ -44,6 +44,12 @@ export interface NodeOptions extends AdapterOptions {
 // https://github.com/websockets/ws
 // https://github.com/websockets/ws/blob/master/doc/ws.md
 const nodeAdapter: Adapter<NodeAdapter, NodeOptions> = (options = {}) => {
+  if ("Deno" in globalThis || "Bun" in globalThis) {
+    throw new Error(
+      "[crossws] Using Node.js adapter in an incompatible environment (https://srvx.h3.dev/guide/bundler).",
+    );
+  }
+
   const hooks = new AdapterHookable(options);
   const peers = new Set<NodePeer>();